Precision Cooling
For Business-Critical Continuity
Liebert InteleCool2™
User Manual - Outdoor Wall-Mount Air Conditioner,1.5 - 5 Tons, 50 & 60 Hz
TABLE OF CONTENTS
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Standard Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Optional Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.3.1 Refrigeration System Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Ancillary Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.1 Room Preparation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.2 Location Considerations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1.3 Equipment Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Unit Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Piping Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ducting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Electrical Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5.1 Power Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5.2 Control Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Outside Air Damper - Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Economizer - Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
CHECKLIST FOR COMPLETE INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
START-UP PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Compressorized Cooling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Economizer Cooling - Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2.1 Enthalpy Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
5.2.2 Actuator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Heating - Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unit Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.4.1 Remote Control Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.4.2 High Pressure (Standard) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.4.3 Refrigeration Control Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5.4.4 Anti-Short Cycle Timer - Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4.5 Heater Protection - With Optional Heat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4.6 Lockout Relay - Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5.4.7 Common Alarm - Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.4
MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Blower Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Economizer - Optional . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Heat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
i
Refrigeration System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.5.1 Refrigerant Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.5.2 Discharge Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.5.3 Thermostatic Expansion Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.5.4 Air-Cooled Condenser. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.6.1 Compressor Replacement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
Dimensional Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Technical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27
MAINTENANCE INSPECTION CHECKLIST. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
10.0 PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
ii
FIGURES
Figure i
Unit mounting dimensions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Low volt wiring terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Mounting minimum position potentiometer on actuator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Refrigeration system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Enthalpy control setting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Condenser/piping assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Crankcase heater (reciprocating compressor only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Evaporator blower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 10 Evaporator coil and expansion valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 11 Electric panels. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Figure 12 Heater assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 13 Economizer assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 14 Common alarm assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Figure 15 Soft start device. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TABLES
Mounting dimensional data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Operating modes/contact closures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Recommended applications for control options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Pressure information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
InteleCool2 dimensional data in. (mm) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Technical data, 60 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Technical data, 60 Hz, continued. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Technical data, 50 Hz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Technical data, 50 Hz, continued. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Table 10 Optional heater capacity, 60 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 11 Optional heater capacity, 50 Hz. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Table 12 Electrical data, 60 Hz - amps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Table 13 Electrical data, 50 Hz - amps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Table 14 Troubleshooting guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Table 15 Refrigeration system parts, 1.5 and 2 ton units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Table 16 Refrigeration system parts, 3 ton units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Table 17 Refrigeration system parts, 4-ton units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Table 18 Refrigeration system parts, 5-ton units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Table 19 Electric panel, 1.5- and 2-ton units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Table 20 Electric panel parts, 3-ton units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Table 21 Electric panel parts, 4-ton unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Table 22 Electric panel parts, 5-ton unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Table 23 Motor parts, heater, Economizer, 1.5- and 2-ton units. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Table 24 Motor parts, heater, Economizer, 3-ton units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Table 25 Motor parts, heater, Economizer, 4-ton units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Table 26 Motor parts, heater, Economizer, 5-ton units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
iii
Figure i Model number designation
External Telecommunication
Nominal Btuhs (1000)
0=Standard Supply & Return
Openings
3=4 or 5 Ton Unit With 3 Ton
Supply & Return Openings
H = Hermetic Compressor
S = Scroll Compressor
R = Right Compressor
L = Left Compressor
P = 208/230V – 1 ph - 60 hz
S = 220/240 – 1 ph - 60 hz
A = 460V – 3 ph - 60 hz
Y = 208/230V – 3 ph - 60 hz
N = 200/230 – 3 ph - 50 hz
M = 380/415V – 3ph - 50 hz
ET 0 36 H R P F B T
0 = Standard
F = Fixed Outside Air Damper
E = Economizer
0 = No Heat
A = 5 kW Heat
B = 10 kW Heat
C = 15 kW Heat
T = Tan, Painted Steel Panels
C = Custom Color, Painted Steel Panels
A = Aluminum Panels
iv
Introduction
1.0 INTRODUCTION
1.1 General
®
The Liebert InteleCool 2 Environmental Control System was designed for convenience and dependabil-
ity in unmanned and remote locations typical of the telecommunications industry. Ease of installation,
operation and service coupled with the use of high quality, high reliability components make InteleCool2
ideally suited for maintaining an environment for sensitive electronic equipment. Standard units are
NRTL-C listed/certified to meet U.S. and Canadian safety standards, and MEA listed for New York City
applications. These agency listings insure fast, hassle-free inspection and building code approvals.
Self-Contained
The InteleCool2 product is completely self-contained. All components are enclosed in the weather-
proof cabinet.
Space Savings
The InteleCool2 does not use any of the valuable floor space inside the secure space. Instead, it is
mounted on the outside wall. No additional space is required outside or on a roof.
Easy to Install
The InteleCool2 is assembled, wired, piped, charged with refrigerant, and fully factory tested as a sys-
tem to ensure trouble free installation and start-up.
1.2
Standard Features
Reciprocating Hermetic Compressor—1.5, 2 and 3 Ton Units
The heart of the refrigeration system is a reciprocating hermetic compressor. The compressor features
a suction gas cooled motor, internal centrifugal oil pump, vibration isolating mountings, internal
thermal overloads, and crankcase heater.
Scroll Compressor—4 and 5 Ton Units
The quiet and efficient scroll compressor features a suction gas cooled motor, internal centrifugal oil
pump, vibration isolating mountings and internal thermal overloads.
Refrigeration System
The refrigeration circuit includes a liquid line filter drier, an externally equalized expansion valve,
and a high-pressure switch.
Evaporator Coil
The evaporator coil is constructed of mechanically expanded copper tubes in enhanced surface alumi-
num fins. A coated, galvanized steel condensate drain pan is provided.
Condenser Coil
The air-cooled condenser coil is constructed of mechanically expanded copper tubes in enhanced sur-
face aluminum fins. Components rated for up to 115°F (46°C) ambient.
Evaporator Blower
Evaporator air is supplied by a direct drive blower package. Fans are centrifugal, double width, dou-
ble inlet.
Filter
The filter is 2 inches deep, pleated, with a minimum efficiency rating of 20% (based on ASHRAE stan-
dard 52.1). Located within the cabinet, the filter is serviceable from the front of the unit.
Cabinet
The exterior cabinet is constructed of painted steel. Internal structural parts (including base) are hot
dipped galvanized steel. The evaporator compartment is insulated with 1/2" thick, 2 lb. density, neo-
prene-faced, fiberglass insulation.
Control Interface
The unit is supplied with customary HVAC wiring designations (R, G, W, Y) inside the low voltage
partition of the unit electric box. The control interface can be provided by sources ranging from a wall
mounted thermostat, a Liebert control and monitoring system or a third party building management
control.
1
Introduction
1.3
Optional Features
4 or 5 Ton Unit With 3 Ton Openings
The 4 or 5 ton units with 3 ton supply and return openings are designed to replace 3 ton wall mounted
air conditioners using existing wall openings. The economizer/fresh air option is not available. Return
filter is located in the return air grille and must be selected from accessory equipment.
Scroll Compressor—Optional on 1.5, 2 and 3 Ton Units
The quiet and efficient scroll compressor features a suction gas cooled motor, internal centrifugal oil
pump, vibration isolating mountings and internal thermal overloads.
Compressor Location
The standard compressor location is on the right when viewing the unit when it is mounted on the
wall. The optional compressor location is on the left, to improve serviceability of the compressor when
the unit is installed as one unit of a pair.
Compressor Crankcase Heater
An optional compressor crankcase heater is available for use with the scroll compressor but is not
required because the refrigerant charge of the InteleCool2 unit with scroll compressor is less than the
compressor critical charge.
High Ambient Condenser
This option is provided for applications where the ambient temperature exceeds the normal design
capabilities of the units. It consists of a condenser motor and fan blades which are sized to provide
additional airflow across the condenser coil. Designed for applications up to 125°F (51°C) ambient.
Heat
Heat is provided in a single stage from an open wire electric resistance element. Heating capacity
options available are 5 kW, 10 kW, and 15 kW depending on unit model size.
Economizer
The Economizer allows outside air to be introduced to the space through the evaporator filter when
conditions are favorable for Economizer cooling. It contains a modulating damper, spring return
direct drive actuator, enthalpy control for switchover, outside air hood and a mixed air controller set
at 55°F (12.8°C). Mechanical cooling and Economizer operation do not operate simultaneously.
Fresh Air Damper
Allows outside air to be brought in to meet indoor air requirements. Air is drawn in through the evap-
orator filter. The amount of air to be introduced to the space is field selectable.
Panel Colors
Optional color choices for the steel panels are almond (light tan, the color option for the original
InteleCool), desert brown, or bright white.
Lockout Relay
The lockout relay latches the detection of a high-pressure condition in the refrigeration circuit and
prohibits operation of the compressor until the abnormal pressure conditions are acknowledged. The
lockout relay is reset by cycling the unit main power or by changing the setpoint on the thermostat to
temporarily eliminate a call for cooling. A normally open set of contacts is provided to terminals 2 and
3 of the customer terminal strip for monitoring the status of the lock out relay when this option is sup-
plied without the Common Alarm option.
Common Alarm
The common alarm provides the necessary components to detect high pressure, low pressure, high
temperature, or loss of indoor airflow, and to provide a customer signal via a contact closure. To detect
low pressure, the optional low pressure switch with bypass, T-pack1 or T-pack2 must also be selected.
Soft Start
Provides a PTC resistor to assist the start of the compressor motor in low voltage operation. Available
only on single phase units.
2
Introduction
1.3.1 Refrigeration System Options
Low Pressure Switch and Low Pressure Bypass Timer
Low Pressure Switch: Used to protect the InteleCool2 if the evaporator blower fails, the air filter
becomes clogged, the refrigeration circuit malfunctions or if there is loss of refrigerant. The low pres-
sure switch is activated when the suction pressure drops below its cutout setting. When activated, the
low pressure switch inhibits operation of the compressor and condenser fan. The switch will automat-
ically reset once the system pressure rises above its cut-in setting.
Low Pressure Bypass Timer: Also known as the Condenser Low Ambient Control or Winter Start
Option), the low pressure switch is used when starting the system when the outdoor temperature is
low. A few minutes after start-up, the low pressure switch resumes normal operation. This option can
be used for applications down to 50°F (10°C). For control down to -20°F (-28.9°C), use the T-pack1 or
T-pack2.
T-pack1
This option provides a Low Pressure Switch, a Low Pressure Bypass Timer (described above), and a
Fan Cycle Control. This option package is one of the preferred control packages for telecommunica-
tion industry applications.
The Fan Cycle Control, also known as the Condenser Fan Cycling Control, consists of a reverse-acting
pressure switch. When the outdoor temperature is low, the pressure switch cycles the condenser fan
to maintain discharge pressures that will allow the systems to function. It is to be used when the out-
door ambient temperature is lower than 50°F (10°C) down to -20°F (-28.9°C).
T-pack2
This option includes a Low Pressure Switch, a Low Pressure Bypass Timer (described above), and an
adjustable Fan Cycle Control, which acts as described in the preceding paragraph, except that it is
adjustable. This option package is one of the preferred control packages for telecommunication indus-
try applications.
1.4
Ancillary Components
Wall-Mounted Thermostat
The thermostat provides for heating/cooling application with separate fan control. Supplied with a
thermostat sub-base.
Indoor Supply/Return Grilles
The supply grille is an aluminum louvered, double deflection type grille allowing user adjustment of
direction of air distribution. The return grille is an aluminum louvered, fixed, single-deflection style
grille.
Additional Spare Filters
Additional sets of the 20% efficiency rated filters (efficiency based on ASHRAE standard 52-1) may be
selected.
1.5
Accessories
Dual Unit Control
The hinged cover dual unit control (DUC) has a two-stage heat/cool thermostat with individual heat-
ing and cooling setpoints, adjustable interstage differentials, and bimetallic elements. The control
features a solid state timer with 1-2-4-8 day sequence. Unit lead selector, unit 1 & 2 power-on LEDs,
unit 1 or 2 lead unit LEDs, 48 hour program save on loss of power, industry standard connections and
24V power from each unit. The DUC provides auto sequencing and displays on-status and operating-
status parameters.
Tele2 Control
This microprocessor-based controller controls two InteleCool2 units. The unit has a 10-key keypad,
four-row by 20-column LCD, an RS-232 modem port, and an RS-232 terminal port. It allows up to
eight customer-selectable, isolated normally open, dry contact alarm inputs. The Tele2 control
requires either a THS28-30 or a THS28-60 sensor assembly. Models are available for
120/50-60/1 VAC, 230/50-60/1 VAC or 48 VDC power.
3
Installation
2.0 INSTALLATION
2.1 Preparation
2.1.1 Room Preparation
The room should be well-insulated and should be sealed to reduce airborne contaminants from pene-
trating the site. Outside air may be introduced through the damper option or be used for economized
cooling by using the Economizer option. However, uncontrolled outside air should be kept to a mini-
mum. Outside air adds to the cooling, heating, and filtration loads of the site. Doors should be prop-
erly sealed to minimize leaks and should not contain grilles.
2.1.2 Location Considerations
The InteleCool2 unit is field-mounted on an outside wall. Additional framing in the wall may be
required to ensure adequate structural support.
The outdoor area near the condenser supply and discharge must also be considered. To assure ade-
quate air supply, the unit should be mounted in a clean area, away from loose dirt and foreign matter
that may clog the condenser coil. The unit should not be located near steam, hot air, or fume exhausts.
Also, the unit should not be mounted closer than 12 feet (3.7 m) from an opposing wall, obstruction or
unit. For service clearance, provide 36 inches (914 mm) in front of the unit, and 30 inches (762 mm) on
each side. When mounting units side by side, provide a minimum of 36 inches (914 mm) between adja-
cent units unless the adjacent units will not be run at the same time. In this case, the units may be
placed as close as 18 inches (457 mm) apart. However, this will make the units more difficult to service.
In such situations, consider the compressor location option for improved serviceability. Before mount-
ing units, check local codes for applicable clearances.
2.1.3 Equipment Inspection
Upon delivery of the unit, inspect all items for visible damage. Concealed damage may be discovered
later during installation. Report any damage to the shipper immediately and file a damage claim.
Also, forward a copy of the damage claim to your Liebert supplier.
2.2
Unit Installation
The InteleCool2 unit is installed against, and through, an outside wall. Two (2) openings in the wall
are required for the evaporator supply and return. Provide 1/2" clearance on wall openings for supply
and return air. Install the unit in a level position to assure proper refrigerant flow, oil return, and
condensate drain. To install the unit, follow the instructions below.
1. Verify that an adequate structural support is provided for the unit.
2. Using a chalk line, mark the outside wall with a level horizontal line, where the bottom of the unit
is to rest.
3. Prepare supply and return openings in an outside wall, measuring up from the chalk base line.
4. Prepare mounting holes. The mounting holes may be pilot holes for lag screws or clearance holes
holes.
5. Fasten the unit mounting base angle to the outside wall with six 5/16" bolts or lag screws (not
supplied), just below chalk line and centered on the opening in the wall.
WARNING
!
Use caution and adequate equipment to safely handle unit. Weight of each unit ranges
from 330 to 490 lbs. (150 to 222 kg), depending on model.
6. With the unit front panel removed, lift the unit onto the base angle, making certain that the rear
unit angle falls behind the turned up front edge of the mounting angle. Insert top and side unit
fasteners in holes and tighten, drawing the unit into place. Do not attach ducts to unit prior
to installing unit.
7. Caulk and flash the top and sides as required to form a watertight seal. Top flashing (not factory
supplied) is recommended to ensure that water does not run behind unit. All unit tops are sloped
to allow water to run off.
4
Installation
Figure 1 Unit mounting dimensions
11"
11"
11"
P
(279mm) (279mm) (279mm)
J
E
F
K
A
C
K
K
K
G
B
D
H
keys to dimensions.
K
L
M ref.
N
Wf
Table 1
Mounting dimensional data
InteleCool 2 dimensional data in. (mm)
Model
Wf
A
B
C
D
E
F
G
H
J
K
L
M
N
P
38-3/4 20
20 9-3/8 9-13/32
8
20-3/4 12
25-1/16 5-15/32 12 3-25/32 4-1/2 37-7/8 2-15/32
1.5-2 Ton
3 Ton
(984) (508) (508) (238) (239) (203) (527) (305)
(638)
(139) (305) (96) (114) (962)
(63)
38-3/4 28
28 5-3/8 5-3/8
8
18
14
26
5-15/32 12 32-5/32 4-1/2 37-7/8 2-15/32
(139) (305) (96) (114) (962) (63)
(984) (711) (711) (137) (137) (203) (457) (356)
(660)
42-3/4 30-1/4 29-7/8 6-1/4 6-7/16 9-7/8 30 15-7/8 25-25/64 1-45/64 16 6-1/64 6-1/2 41-3/4 4-3/8
(1086) (768) (759) (159) (164) (251) (762) (403) (645) (43) (406) (24) (165) (1060) (111)
4-5 Ton
4 or 5 Ton Unit
w/3 Ton
Openings
42-3/4 28
28 7-3/8 7-3/8
8
18
14
37-1/2 1-45/64 16
15/16 6-1/2 41-3/4 4-3/8
(1086) (711) (711) (187) (187) (203) (457) (356)
(952) (43) (406) (24) (165) (1060) (111)
2.3
Piping Connections
The InteleCool2 is a self-contained, packaged unit. All refrigerant piping connections are made at the
factory, so no external condenser is required. The evaporator coil condensate drain is factory-supplied
and drains outdoors through the unit base pan. The condensate drain tubing should be checked to be
certain that it is placed through the hole provided in the base pan.
5
Installation
2.4
2.5
Ducting
Field-supplied ducting can be attached to the unit duct connection once the unit has been mounted to
the outside wall. The total external static pressure for the duct, including grille, must not exceed the
Electrical Connections
WARNING
!
Use voltmeter to make sure power is turned off before making any electrical connections.
CAUTION
!
Refer to electrical schematic when making connections.
Each unit is shipped from the factory with all internal wiring completed. Refer to the electrical sche-
matic when making connections. Electrical connections to be made at the installation site are: line
voltage power supply to the power input and control wiring to remote control (customer supplied or
Liebert option). DO NOT RUN CONTROL WIRING WITH HIGH VOLTAGE!
2.5.1 Power Connections
All power and control wiring and ground connections must be in accordance with the National Electri-
cal Code and local codes
Use copper wiring only. Make sure that all connections are tight.
Make sure that the voltage supplied agrees with the voltage specified on the unit nameplate. The
InteleCool2 comes standard with a factory-installed circuit breaker, accessible through an external
access panel. An external, wall-mounted power disconnect switch (field-supplied) may be required for
local codes. If necessary, this switch should be wired according to those codes.
For access to the electrical enclosure:
• Remove the screws securing the middle panel and pull the panel down and forward to remove.
• Remove the screws securing the electric box cover and remove cover.
• Verify that the unit wiring is correct for the actual input power. Some units are built with multi-
voltage serial tags. The transformer may need to be re-tapped if the actual input voltage is differ-
ent (see serial tag and electrical schematic).
Route the supply power to the customer-supplied disconnect switch (if required) and then to the unit
circuit breaker inside the unit. Route the conduit to the hole provided in the cabinet. Connect the
earth ground to the lug provided near the circuit breaker. Refer to the unit wiring diagram supplied
on the inside of the electrical enclosure cover.
CAUTION
!
The optional three-phase scroll compressor must rotate in the correct direction to ensure
proper system operation. Wiring must be phased and connected as shown:
• PHASE “A” to T1 or L1
• PHASE “B” to T2 or L2
• PHASE “C” to T3 or L3
2.5.2 Control Connections
Control wiring will be required for the remote control device. This remote device may be a factory- or
field-supplied wall thermostat or similar device. Connections to the unit are made using customary
HVAC low volt wiring terminals R, G, W, and Y. For detailed locations of the low volt wiring termi-
6
Installation
Figure 2 Low volt wiring terminals
Liebert Thermostat
See 2.5.2 - Control Connections for further information, refer to the detailed instructions that ship
with the thermostat.
NOTE
This control contains mercury in a sealed tube. Do not place control in the trash at the end of is
useful life. If this control is replacing a control that contains mercury in a sealed tube, do not
place your old control in the trash. Contact your local waste management authority for
instructions regarding recycling and the proper disposal of this control, or of an old control
containing mercury in a sealed tube.
If you have questions, call the thermostat manufacturer, Honeywell, at 800-468-1502.
Dual Unit Control
®
The InteleCool Dual Unit Control is designed to control two InteleCools in a “lead/lag” fashion. The
control contains an electronic timer for switching the operating sequence of two units on a one-, two-,
four-, or eight-day basis. It also contains a two-stage heat/two-stage cool thermostat with individual
heat and cool set points. Light emitting diodes (LEDs) indicate Lead Unit 1 or 2 and power from
Unit 1 or 2. The schedule for lead/lag switchover is adjustable by moving jumpers on the printed cir-
cuit board. A jumper is also used to change lead and lag unit before a scheduled changeover (if neces-
sary for servicing).
WARNING
!
The original Dual Unit Control (part # 153054G1, produced through March 2002), is phase
sensitive. The latest version Dual Unit Control (Part # 171170G1) is not. Please refer to
specific installation instructions supplied with each control. Failure to follow specific
instructions may damage the control and/or the unit and void the warranty.
NOTE
This control contains mercury in a sealed tube. Do not place control in the trash at the end of
its useful life. If this control is replacing a control that contains mercury in a sealed tube, do
not place your old control in the trash. Contact your local waste management authority for
instructions regarding recycling and the proper disposal of this control, or of an old control
containing mercury in a sealed tube.
If you have questions, call the thermostat manufacturer, Honeywell, at 800-468-1502.
Tele2
Consult the Tele2 user manual for installation instructions.
7
Installation
2.6
2.7
Outside Air Damper - Optional
Units supplied with fixed (non-modulating) outdoor air damper can be adjusted as follows:
1. Remove the screws from the middle panel and remove panel.
2. Loosen the damper plate screws on the backside of the middle panel.
3. Adjust the damper plate to the desired position and tighten damper plate screws.
4. Replace panels.
Economizer - Optional
Installation
Insert the top flanged edge of the Economizer hood into the Economizer opening on the unit front
panel. Next, attach the bottom left and right corner of the hood with screws (supplied).
Adjustment
Units supplied with Economizer requiring outside air can be adjusted as follows:
1. Run motor to fully closed position and disconnect 24 VAC from terminals TR and TR1.
disconnected.)
3. Reconnect 24 VAC to terminals TR and TR1 and adjust potentiometer for desired minimum
position by turning Q709 adjustment screw clockwise to increase minimum position;
counterclockwise to decrease minimum position.
Figure 3 Mounting minimum position potentiometer on actuator
Push onto
actuator
8
Checklist for Complete Installation
3.0 CHECKLIST FOR COMPLETE INSTALLATION
___ 1. Proper clearance for service access has been maintained.
___ 2. Equipment is level and mounting fasteners are tight.
___ 3. Ducting completed, if required.
___ 4. Line voltage to power wiring matches equipment nameplate.
___ 5. Power wiring connections completed to disconnect switches, including earth ground. Proper
phase rotation has been observed so that scroll compressor will rotate in the correct direction.
___ 6. Power line circuit breakers or fuses have proper ratings for equipment installed.
___ 7. Control wiring connections completed to optional controls.
___ 8. All wiring connections are tight.
___ 9. Foreign materials have been removed from in and around all equipment installed (shipping
materials, construction materials, tools, etc.).
___ 10. Fans and blowers rotate freely without unusual noise.
WARNING
!
Potentially lethal voltages exist within this equipment during operation. Observe all cautions
and warnings in this manual. Failure to do so could result in serious injury or death. Only
qualified service and maintenance personnel should work with this equipment.
9
Start-Up Procedure
4.0 START-UP PROCEDURE
1. Disconnect all power to the InteleCool2 unit.
2. Adjust remote control to prevent compressor, heat and fan operation.
3. Turn on main breaker and check line voltage on main unit disconnect switch. Line voltage must
be within ± 10 volts of nameplate voltage.
4. Turn ON main unit disconnect switch and check secondary voltage at transformer T1. Voltage at
T1 must be 24 VAC ±2.5V.
5. From the remote control, verify proper operation in all modes.
6. Make sure all blowers, fans, and the scroll compressor are rotating in the correct direction.
7. Check the current draw on all line voltage components and compare with unit nameplate.
8. Check adjustment of the optional outside air damper for the desired balance between the flow of
room air and outdoor air. Use a gauge or non-polluting airflow indicator.
NOTE
If the unit is supplied with crankcase heaters, Liebert recommends that the high voltage be
applied between four and six hours before start-up.
10
Operation
5.0 OPERATION
5.1 Compressorized Cooling
Compressorized cooling is provided by a high efficiency system consisting of a compressor, thermo-
static expansion valve, evaporator, and condenser coil.
The InteleCool2 uses R-22 refrigerant in a conventional vapor-compression refrigeration cycle. Heat
is removed from the air in the space by blowing the air across the evaporator coil. As heat is trans-
ferred to the refrigerant in the evaporator, the refrigerant boils and turns to a warm vapor. The
refrigerant vapor enters the compressor and is compressed, resulting in high pressure and tempera-
ture. After entering the condenser, the hot vapor is condensed to a liquid by the air blown across the
condenser coil. Liquid refrigerant then passes through the thermal expansion valve and into the evap-
orator. The expansion reduces the pressure and temperature to complete the cycle.
Figure 4 Refrigeration system
Thermal expansion
valve (not shown)
Evaporator
Liquid line
Liquid line
Filter drier
Compressors:
Hermetic Reciprocating (1.5, 2 and 3 ton units)
or Scroll
Optional compressor location available
Condenser
11
Operation
5.2
Economizer Cooling - Optional
The Economizer mode uses outside air to cool the room when the outside air temperature is cool
enough to allow for economical cooling. Components include the damper, spring return direct drive
actuator, enthalpy sensor and actuator control board with an integral mixed air sensor. Economizer
operation is enabled when the outside conditions meet required temperature and humidity as set on
the enthalpy sensor. If outdoor conditions are favorable on a call for cooling, the damper actuator will
open the Economizer damper. The damper position will be controlled based on the mixed air tempera-
ture in the evaporator section. The factory set mixed air temperature target is 50-56°F (10-13°C).
The amount of damper opening depends on the cooling capacity of the outside air; the cooler the out-
side air, the less that is needed to cool the room, and so a smaller damper opening is required. As the
outside air temperature rises, the damper will open wider since more of that air is required to keep
the room at the same temperature.
The Economizer and compressorized cooling will never operate at the same time. If outdoor conditions
meet the required enthalpy sensor setpoint during a cooling cycle, the unit will automatically shut
down the compressor and begin using outside air.
5.2.1 Enthalpy Sensor
The enthalpy sensor responds to the total heat content of the outdoor air to provide changeover from
compressorized cooling to free-cooling operation. The changeover point is factory set (at the “D” posi-
tion). This setting will ensure rated capacity when the outdoor conditions allow for Economizer cooling.
Figure 5 Enthalpy control setting
70
65
60
Enthalpy Control
Operating Range
55
50
45
40
10
20
30
40
50
60
70
80
90
Outdoor Relative Humidity (%RH)
5.2.2 Actuator
The Economizer actuator is mounted in the lower part of the Economizer section below the electric
box. It is accessible by opening the lower front panel. The actuator is a 24 VAC, spring return device
that will fully close the Economizer damper. The actuator has internal controls that allow it to oper-
ate based on signals from the enthalpy control and mixed air sensor.
5.3
Heating - Optional
On units supplied with optional resistance heating, a call for heating closes the heat relay and ener-
gizes the evaporator fan and resistive elements.
12
Operation
5.4
Unit Controls
5.4.1 Remote Control Interface
Control connections to the InteleCool2 unit use customary HVAC terminal designations R, G, W & Y.
Contact closures between the 24 VAC (R) and different control connections supply control voltage to
the electric panel components responsible for the desired function. Operating modes are controlled by
contact closures as follows:
Table 2
Operating modes/contact closures
Connection Operating Mode
R
G
W
Y
24 VAC
Evaporator Fan
Heating
Cooling (compressorized or Economizer)
Wall-mounted thermostats are to be low voltage, snap action or mercury type. Un-manned sites should
use a HEAT/COOL/AUTO type subbase to provide automatic switchover during climate changes.
5.4.2 High Pressure (Standard)
The high pressure switch is mounted in the liquid line. Electrically, it is connected in series with the
compressor start circuit, which will shut down the compressor and condenser fan if the liquid pres-
sure exceeds 400 PSIG (2758 kPa). This protects the InteleCool2 in the event of condenser motor fail-
ure or condenser coil blockage.
The pressure switch is an auto reset device. When the system pressure drops below 300 PSIG
(2069 kPa), the switch will reset. (An optional lockout relay is available which allows the switch to be
used as a manual reset safety.) If the call for cooling is present, the compressor start circuit will be
energized and the compressor will start after the 3 minute anti-short cycle time.
5.4.3 Refrigeration Control Options
Please review the following table for the recommended control options based on the site ambient and
your need for year-round operation.
Table 3
Recommended applications for control options
Application
Unit
Options
Min ambient Max ambient
General
Standard
None
50°F (10°C)
50°F (10°C)
115°F (46.1°C)
115°F (46.1°C)
Low pressure with low pressure bypass
timer
General
General
Standard
Standard T-pack1 or T-pack2
-20°F (-28.9°C) 115°F (46.1°C)
-20°F (-28.9°C) 115°F (46.1°C)
Telecom/365-day operation Standard T-pack1 or T-pack2
General
Standard High ambient
50°F (10°C)
125°F (51.7°C)
High ambient, low pressure with low
pressure bypass timer
General
Standard
50°F (10°C)
125°F (51.7°C)
Telecom/365-day operation Standard High ambient with T-pack1 or T-pack2
-20°F (-28.9°C) 125°F (51.7°C)
Low Pressure Switch and Low Pressure Bypass Timer (Winter Start)
Low Pressure Switch—The low pressure switch is mounted in the compressor suction line. Electri-
cally, it is connected in series with the compressor start circuit, which will shut down the compressor
and condenser fan if the suction pressure drops below 35 PSIG (241 kPa). The switch will automati-
cally reset once the system pressure rises above its cut-in setting (60 psig, ±5 psig [414 kPa, ±34 kPa]).
This protects the InteleCool2 in the event the evaporator fan fails, the filter becomes clogged or there
is a loss of refrigerant. If the call for cooling is present, the compressor will start after the 3 minute
anti-short cycle time.
Low Pressure Bypass Timer—A low ambient temperature start relay is included with the low
pressure option. This relay locks out (ignores) the low pressure switch on start-up until the system
pressure stabilizes. This bypass relay is adjustable and should be set for 3 minutes greater than the
anti-short cycle timer setting. This option can be used for applications down to 50°F (10°C). For con-
trol down to -20°F (-28.9°C), use the T-pack1 and T-pack2 options, which include fan cycle control.
13
Operation
T-pack1 package
Includes a low pressure switch, low pressure bypass timer (described above) and fan cycle control.
Fan Cycle Control—Condenser Fan Cycling Control; allows the InteleCool2 unit to provide cooling
to the space when the outdoor ambient temperature is lower than 50°F (10°C) and down to -20°F
(-28.9°C). The control uses a reverse acting pressure switch mounted on the discharge line that cycles
the condenser fan in response to the discharge pressure. On a call for cooling, when the discharge
pressure increases to 250 PSIG (1723 kPa), the switch will close and start the condenser fan. When
the pressure drips below 170 PSIG (1172 kPa) the switch will open and stop the condenser fan. Dur-
ing low outdoor temperatures, the pressure switch cycles the condenser fan to maintain discharge
pressure that will allow the system to function.
NOTE
During normal operation in low ambient conditions, the condenser fan will cycle frequently.
T-pack2 package
Includes a low pressure switch, low pressure bypass timer and an adjustable fan cycle control. See
descriptions above.
5.4.4 Anti-Short Cycle Timer - Standard
The anti-short cycle timer protects the compressor from continuous ON-OFF operation and restarts
after momentary power failures. The timer used is adjustable and is set to a minimum of 3 minutes.
On start-up, or any call for cooling after an off cycle of more than 3 minutes, the compressor will start
immediately.
5.4.5 Heater Protection - With Optional Heat
On units supplied with resistance heating, an auto reset heater safety and a one time (replaceable)
thermal link protects the unit wiring and prevents excessive heat conditions caused by a dirty air fil-
ter or fan failure.
5.4.6 Lockout Relay - Optional
The lockout relay latches the detection of a high-pressure condition in the refrigeration circuit and
prohibits operation of the compressor until the abnormal pressure conditions are acknowledged. The
lockout relay is reset by cycling the unit main power or by changing the setpoint on the thermostat to
temporarily eliminate a call for cooling. A normally open set of contacts is provided to terminals 2 and
3 of the customer terminal strip for monitoring the status of the lock out relay when this option is sup-
plied without the Common Alarm option.
5.4.7 Common Alarm - Optional
Alarm components are an evaporator air sail switch, evaporator high temperature switch, control
relays and an adjustable time delay relay with two normally open and two normally closed alarm con-
tacts. The alarm contacts will activate in the event of a loss of airflow across the evaporator blower,
high evaporator temperature or in the event that the compressor is not functioning due to an abnor-
mal pressure condition. The adjustable time delay relay can be adjusted for a delay of up to 90 sec-
onds to eliminate nuisance tripping of the alarm contacts. To detect low pressure, the optional low
pressure switch with bypass, T-pack1 or T-pack2 must also be selected.
14
Maintenance
6.0 MAINTENANCE
WARNING
!
Potentially lethal voltages exist within this equipment during operation. Observe all cautions
and warnings in this manual. Failure to do so could result in serious injury or death. Only
qualified service and maintenance personnel should work with this equipment.
6.1
Filters
Replaceable evaporator air filter(s) are supplied with the unit. The filter(s) are easily serviceable from
the outside, through the top front access panel.
Filters are usually the most neglected item in an environmental control system. To maintain efficient
operation, they should be checked monthly and changed as required. Units supplied with Economiz-
ers may require replacement filters more frequently because of airborne dust and organic materials.
Filters can be replaced from the front by opening the lower front access panel.
WARNING
!
Power must be OFF while replacing the filter.
6.2
Blower Package
Periodic checks of the blower package include: blower wheels, housings, motor and motor mounting
bracket. With the power off, inspect and remove any debris from the wheels and housings. Also check
to see that they are tightly mounted on the motor shaft and rotate freely without rubbing against the
housing.
WARNING
!
POWER MUST BE OFF WHILE INSPECTING THE BLOWER EQUIPMENT.
6.3
6.4
Economizer - Optional
Each month, the Economizer should be inspected and any debris removed from the intake hood,
damper blade and enthalpy sensor.
Heat
Heaters can be serviced and/or removed from inside through the discharge opening or from outside by
removing the top.
WARNING
!
Power must be OFF while working on heaters.
6.5
Refrigeration System
Each month, the components of the refrigeration system should be inspected for proper function and
signs of wear. Since, in most cases, evidence of malfunction is present prior to component failure, peri-
odic inspections can be a major factor in the prevention of most system failures.
6.5.1 Refrigerant Lines
Check all refrigerant lines and capillaries for vibration isolation, and support as necessary. Visually
inspect all refrigerant lines for leaks.
6.5.2 Discharge Pressure
Discharge pressure can be increased or decreased by load conditions or condenser efficiency. The
high-pressure switch will shut the compressor/contactor at its cut-out setting of 400 PSIG (2758 kPa).
15
Maintenance
6.5.3 Thermostatic Expansion Valve
The thermostatic expansion valve (TEV) keeps the evaporator supplied with enough refrigerant to
satisfy load conditions. It does not turn the compressor on or off, but maintains proper refrigerant
super heat in the suction gas to the compressor.
Determine TEV operation by measuring superheat. If too little refrigerant is being fed to the evapora-
tor, the superheat will be high; if too much refrigerant is being supplied, the superheat will be low.
The correct superheat setting is between 10° and 15°F (5.5° and 8.3°C), under normal load conditions
and “steady-state” operation. Some models of InteleCool2 will be supplied with a non-adjustable
expansion valve, so no adjustments are possible.
To adjust the superheat setting when an adjustable valve is used:
1. Remove the valve cap from the base of the valve.
2. Turn the adjustment stem counter-clockwise to lower the superheat.
3. Turn the adjustment stem clockwise to increase the superheat.
NOTE
Make no more than 1/4 turn of the stem at a time. As long as 30 minutes may be required
for the new balance to take place.
To determine superheat:
1. Measure the temperature of the suction line at the point where the TEV bulb is clamped.
2. Obtain the gauge pressure at the compressor suction valve.
3. Add the estimated pressure drop between bulb location and the suction valve.
4. Convert the sum of the two pressures to the saturated temperature.
5. Subtract this temperature from the actual suction line temperature. The difference is superheat.
6.5.4 Air-Cooled Condenser
Restricted airflow through the condenser coil will reduce the operating efficiency of the unit and can
result in high compressor head pressure and loss of cooling.
Clean the condenser coil each time the evaporator filters are replaced. Check for bent or damaged coil
fins and repair as needed. Check all refrigerant lines for leaks. Clean the condenser coil of all debris
that will inhibit airflow. This can be done with compressed air or commercial coil cleaner.
6.6
Compressor
Infrequently, a fault in the motor insulation may result in a motor burn. However, in a properly
installed system, burnouts rarely occur. Of those that do, most are the result of mechanical or lubrica-
tion failures, resulting in the burnout as a secondary consequence.
If the problems that can cause compressor failures are detected and corrected early, a large percent-
age can be prevented. Periodic maintenance inspections by alert service personnel on the lookout for
abnormal operation can be a major factor in reducing maintenance costs. It is easier and far less
costly to take the steps necessary to ensure proper system operation than it is to allow a compressor
to fail and require replacement.
When troubleshooting a compressor, check all electrical components for proper operation, including
all fuses and circuit breakers and pressure switch operation.
If a compressor failure has occurred, determine whether it is an electrical or mechanical failure.
Mechanical Failure
A mechanical compressor failure will not be indicated by a burned odor. The motor will attempt to
run. If you have determined that a mechanical failure has occurred, the compressor must be replaced.
16
Maintenance
Electrical Failure
An electrical failure will be indicated by a distinct pungent odor. If a severe burnout has occurred, the
oil will be black and acidic. If a burnout does occur, correct the problem that caused the burnout and
clean the system thoroughly using the proper procedure. It is important to note that successive burn-
outs of the same system are usually caused by improper cleaning.
CAUTION
!
Damage to a replacement compressor caused by improper system cleaning constitutes
abuse under the terms of the warranty, and the WARRANTY WILL BE VOIDED.
There are two kits that can be used with a complete compressor burnout: Sporlan System Cleaner and
Alco Dri-Kleener. Whichever kit is used, follow the manufacturer’s procedure.
CAUTION
!
Avoid skin contact with the refrigerant and oils. Severe burns will result.
Use long rubber gloves when handling contaminated parts.
6.6.1 Compressor Replacement
Replacement compressors are available from your Liebert supplier. They will be shipped in a reusable
crate to the job site as required by the service contractor.
Upon shipping a replacement compressor, the service contractor will be billed in full for the compres-
sor until the failed compressor has been returned to the factory.
The compressor should be returned in the same container used for shipping to the job. The possible
damage causes or conditions that were found should be recorded by marking the compressor return
tag.
1. Disconnect power.
2. Attach suction and discharge gauges to access fittings.
3. Recover refrigerant using standard recovery procedures and equipment. Use a filter drier when
charging the system with recovered refrigerant.
CAUTION
!
Do not loosen any refrigeration or electrical connections before relieving system pressure from
both sides of the compressor.
NOTE
Release of refrigerant to the atmosphere is harmful to the environment and is unlawful.
Refrigerant must be recycled or discarded in accordance with federal, state, and local
regulations.
4. Disconnect all electrical connections.
5. Remove failed compressor.
CAUTION
!
The optional three-phase scroll compressor must rotate in the correct direction to ensure
proper system operation. Wiring must be phased and connected as shown:
• PHASE “A” to T1 or Ll
• PHASE “B” to T2 or L2
• PHASE “C” to T3 or L3
6. Install replacement compressor and make all connections.
7. Pressurize and leak test the system at approximately 150 PSIG (1034 kPa) pressure.
8. Follow manufacturer’s instructions for cleanout kits.
17
Maintenance
9. Connect a vacuum pump to both the high and low sides of the system through properly sized
connections. Evacuate the system twice to 1500 microns, and the third time to 500 microns. Break
the vacuum each time with dry nitrogen to 2 PSIG (13.8 kPa).
10. Charge the system with refrigerant. Refer to unit serial tag for refrigerant charge amount.
11. Apply power and operate system. Check for proper operation. Suction and discharge pressures
will vary with load conditions and coil efficiency. The low pressure switch will shut the
compressor down if the suction pressure falls below the cutout setting. Conversely, the high
pressure switch will shut down the compressor if the discharge pressure exceeds the cutout
setting. High suction pressure reduces the ability of the refrigerant to cool compressor
NOTE
High side gauge port is a liquid line connection. Proper procedures should be followed
when installing and removing gauges. A 6-foot (1.8 m) hose can hold up to 3 oz (0.1 l) of
refrigerant. Be sure to purge high side to low prior to removal.
Table 4
Design
Pressures
psig (kPA)
Pressure information
Minimum
psig (kPa)
R-22
Maximum
psig (kPa)
R-22
Suction
35 (241)
90 (620)
PSIG (kPa)
Liquid (Approx.)
95°F (35°C) Ambient
Maximum
250-290 (1723-2000)
360-380 (2480-2618)
400 (2756)
High Pressure Cutout
Based on indoor conditions of 80°F (26.7°C), 50% RH, with clean filter(s).
18
Specifications
7.0 SPECIFICATIONS
7.1 Dimensional Data
Figure 6 Dimensional data
Ws
2-1/4"
(58mm)
J
Entrance for high
volt connections
4"
(102mm)
Wu
A
E
supply
F
K
1-11/16"
(43mm)
C
G
H
Entrance
for low volt
connections
B
return
L
Shaded areas indicate a recommended clearance
of 34" (864mm) in front and 30" (762mm) each side,
or 36" (914mm) when mounted adjacent to another
unit, for component access. For recommended
minimum clearances, refer to 2.1.2 - Location Con-
Wf
D
2-1/4"
(58mm)
See Table 5 below for dimensions.
Table 5
InteleCool2 dimensional data in. (mm)
Dimensional Data in. (mm)
InteleCool Model Wu
Ws
Wf
A
B
C
D
E
F
G
H
J
K
L
37-1/8 17-3/4 38-3/4 20
20 9-3/8 9-13/32
8
20-3/4 12
25-1/16 69-3/4 36-3/16 31-5/8
(638) (1772) (919) (803)
1.5/2 Ton
3 Ton
(943) (451) (984) (508) (508) (238) (239) (203) (527) (305)
37-1/8 17-3/4 38-3/4 28 28 5-3/8 5-3/8 18 14
(943) (451) (984) (711) (711) (137) (137) (203) (457) (356)
41 22-1/2 42-3/4 30-1/4 29-7/8 6-1/4 6-7/16 9-7/8 30 15-7/8 25-25/64 83
(1041) (572) (1086) (768) (759) (159) (164) (251) (762) (403) (645) (2108) (1118) (1003)
41 22-1/2 42-3/4 28 28 7-3/8 7-3/8 18 14 37-1/2 83 44 39-1/2
(952) (2108) (1118) (1003)
8
26
(660) (1772) (919) (803)
44 39-1/2
69-3/4 36-3/16 31-5/8
4/5 Ton
4 or 5 Ton Unit
8
w/ 3 Ton Openings (1041) (572) (1086) (711) (711) (187) (187) (203) (457) (356)
19
Specifications
7.2
Technical Data
Table 6
Technical data, 60 Hz
Model
ET018
Hermetic
ET024
Hermetic
ET036
Hermetic Scroll
Compressor type
Scroll
Scroll
Net capacity data based on 80°F (26.6°C) DB/67°F (19.4°C) WB indoor ambient - BTUH (kW)*
Outdoor ambient
Total
Sensible
Total
20700 (6.07) 20000 (5.86) 24800 (7.27) 23400 (6.86) 36100 (10.58) 36200 (10.61)
17700 (5.19) 17500 (5.13) 19700 (5.77) 19100 (5.60) 27000 (7.91) 27000 (7.91)
19300 (5.65) 19200 (5.63) 23200 (6.80) 22400 (6.56) 33800 (9.90) 34600 (10.14)
85°F
(29.4°C)
95°F
(35.0°C)
Sensible
Total
17200 (5.04) 17200 (5.04) 19100 (5.60) 18800 (5.51) 26100 (7.65)
18000 (5.27) 18300 (5.36) 21600 (6.33) 21300 (6.24) 31500 (9.23)
16700 (4.89) 16900 (4.95) 18500 (5.42) 18400 (5.39) 25200 (7.38)
17000 (4.98) 17600 (5.16) 20000 (5.86) 20200 (5.92) 29000 (8.50)
17000 (4.98) 17600 (5.16) 17900 (5.24) 18000 (5.27) 24300 (7.12)
26400 (7.74)
32900 (9.64)
25700 (7.53)
31100 (9.11)
25100 (7.35)
105°F
(40.6°C)
Sensible
Total
115°F
(46.1°C)**
Sensible
Net capacity data based on 75°F (23.9°C) DB/62.5°F (16.9°C) WB indoor ambient - BTUH (kW)*
Outdoor ambient
85°F
(29.4°C)
Total
Sensible
Total
19200 (5.63) 18700 (5.48) 23000 (6.74) 21800 (6.39) 33600 (9.84)
17100 (5.01) 16900 (4.95) 19000 (5.57) 18500 (5.42) 26200 (7.68)
17800 (5.22) 17900 (5.24) 21500 (6.30) 20900 (6.12) 31400 (9.20)
16600 (4.86) 16600 (4.86) 18400 (5.39) 18200 (5.33) 25300 (7.41)
16900 (4.95) 17300 (5.07) 20000 (5.86) 19900 (5.83) 29200 (8.56)
16900 (4.95) 17300 (5.07) 17800 (5.22) 17800 (5.22) 24400 (7.15)
15700 (4.60) 16500 (4.83) 18400 (5.39) 18800 (5.51) 26900 (7.88)
15700 (4.60) 16500 (4.83) 17200 (5.04) 17300 (5.07) 23500 (6.89)
33800 (9.90)
26300 (7.71)
32300 (9.46)
25700 (7.53)
30800 (9.02)
25000 (7.32)
29000 (8.50)
24300 (7.12)
95°F
(35.0°C)
Sensible
Total
105°F
(40.6°C)
Sensible
Total
115°F
(46.1°C)**
Sensible
Evaporator Air Flow - Dry Coil
External Static Pressure
0.0 - IN WG (0.0 Pa)
0.1 - IN WG (25 Pa)
0.2- IN WG (50 Pa)
3
CFM (m /hr)
870 (1480)
830 (1410)
780 (1320)
750 (1260)
670 (1140)
590 (1000)
930 (1580)
880 (1500)
840 (1430)
800 (1360)
730 (1240)
650 (1100)
1300 (2210)
1220 (2070)
1130 (1920)
1030 (1750)
920 (1560)
820 (1390)
0.3 - IN WG (75 Pa)
0.4- IN WG (100 Pa)
0.5 - IN WG (125 Pa)
Evaporator Air Flow - Wet Coil
External Static Pressure
0.0 - IN WG (0.0 Pa)
0.1 - IN WG (25 Pa)
0.2 - IN WG (50 Pa)
0.3 - IN WG (75 Pa)
0.4- IN WG (100 Pa)
0.5- IN WG (125 Pa)
Evaporator
3
CFM (m /hr)
850 (1440)
810 (1380)
770 (1310)
720 (1220)
650 (1100)
570 (970)
910 (1550)
860 (1460)
820 (1390)
780 (1320)
710 (1210)
620 (1050)
1200 (2040)
1120 (1900)
1030 (1750)
940 (1600)
850 (1440)
750 (1270)
Motor Hp (kW)
0.25 (0.19)
0.25 (0.19)
0.25 (0.19)
16 x 32.5 x 2 - one
(40.6 x 82.5 x 5)
16 x 32.5 x 2 - one
(40.6 x 82.5 x 5)
16 x 32.5 x 2 - one
(40.6 x 82.5 x 5)
Filter Sizes - Quantity in. (cm)
Drain Connection - ID in.
3/4
3/4
3/4
Weight w/o Economizer Ib (kg)
Weight w/ Economizer Ib (kg)
330 (150)
350 (159)
330 (150)
350 (159)
330 (150)
350 (159)
* Based on rated airflow with no external static and no outside air.
** For applications above 115°F (46.1°C) use high ambient option.
20
Specifications
Table 7
Technical data, 60 Hz, continued
Model
ET048, ET348
Scroll
ET060, ET360
Scroll
Compressor Type
Net capacity data based on 80°F (26.6°C) DB/67°F (19.4°C) WB indoor ambient - BTUH (kW)*
Outdoor ambient
Total
Sensible
Total
49100 (14.39)
39300 (11.51)
46900 (13.74)
38400 (11.25)
44500 (13.04)
37600 (11.02)
42000 (12.31)
36700 (10.75)
58500 (17.14)
42800 (12.54)
56000 (16.41)
41900 (12.28)
53400 (15.65)
40900 (11.98)
50500 (14.80)
39800 (11.66)
85°F
(29.4°C)
95°F
(35.0°C)
Sensible
Total
105°F
(40.6°C)
Sensible
Total
115°F
(46.1°C)**
Sensible
Net capacity data based on 75°F (23.9°C) DB/62.5°F (16.9°C) WB indoor ambient - BTUH (kW)*
Outdoor ambient
Total
Sensible
Total
46000 (13.48)
38200 (11.19)
43800 (12.83)
37300 (10.93)
41500 (12.16)
36300 (10.64)
39200 (11.49)
35400 (10.37)
54900 (16.09)
41900 (12.28)
52400 (15.35)
40800 (11.95)
49800 (14.59)
39700 (11.63)
47100 (13.80)
38600 (11.31)
85°F
(29.4°C)
95°F
(35.0°C)
Sensible
Total
105°F
(40.6°C)
Sensible
Total
115°F
(46.1°C)**
Sensible
Evaporator Air Flow - Dry Coil (Derate ESP by 0.2 - IN WG (50 Pa) for ET348 and ET360)
3
External Static Pressure
0.0 - IN WG (0.0 Pa)
0.1 - IN WG (25 Pa)
0.2 - IN WG (50 Pa)
0.3 - IN WG (75 Pa)
0.4 - IN WG (100 Pa)
0.5 - IN WG (125 Pa)
CFM (m /hr)
2030 (3450)
1910 (3240)
1770 (3010)
1650 (2800)
1520 (2580)
1390 (2360)
2030 (3450)
1910 (3240)
1770 (3010)
1650 (2800)
1520 (2580)
1390 (2360)
Evaporator Air Flow - Wet Coil (Derate ESP by 0.2 - IN WG (50 Pa) for ET348 and ET360)
3
External Static Pressure
0.0 - IN WG (0.0 Pa)
0.1 - IN WG (25 Pa)
0.2 - IN WG (50 Pa)
0.3 - IN WG (75 Pa)
0.4 - IN WG (100 Pa)
0.5 - IN WG (125 Pa)
CFM (m /hr)
1800 (3060)
1680 (2850)
1580 (2680)
1470 (2500)
1360 (2310)
1250 (2120)
1800 (3060)
1680 (2850)
1580 (2680)
1470 (2500)
1360 (2310)
1250 (2120)
Evaporator
Motor Hp (kW)
0.50 (0.37)
0.50 (0.37)
21 x 36.25 x 2 - one
(53.3 x 92 x 5)
21 x 36.25 x 2 - one
(53.3 x 92 x 5)
Filter Sizes - Quantity in. (cm)
Drain Connection - ID in.
3/8
3/8
Weight - w/o Economizer Ib/kg
Weight - with Economizer Ib/kg
470 (213)
490 (222)
470 (213)
490 (222)
* Based on rated airflow with no external static and no outside air.
** For applications above 115°F (46.1°C) use high ambient option.
21
Specifications
Table 8
Technical data, 50 Hz
Model
ET017
Hermetic
ET023
Hermetic
ET035
Hermetic Scroll
Compressor type
Scroll
Scroll
Net capacity data based on 26.6°C (80°F) DB/19.4°C (67°F) WB indoor ambient - kW (BTUH)*
Outdoor ambient
29.4°C
(85°F)
Total
Sensible
Total
5.19 (17700) 5.92 (20200) 6.21 (21200) 6.62 (22600) 8.97 (30600) 8.53 (29100)
4.45 (15200) 4.72 (16100) 4.98 (17000) 5.13 (17500) 6.74 (23000) 6.56 (22400)
4.83 (16500) 5.63 (19200) 5.83 (19900) 6.33 (21600) 8.44 (28800) 8.12 (27700)
4.31 (14700) 4.63 (15800) 4.83 (16500) 5.01 (17100) 6.53 (22300) 6.42 (21900)
4.45 (15200) 5.36 (18300) 5.42 (18500) 6.01 (20500) 7.88 (26900) 7.68 (26200)
4.19 (14300) 4.51 (15400) 4.69 (16000) 4.89 (16700) 6.33 (21600) 6.24 (21300)
4.19 (14300) 5.04 (17200) 5.01 (17100) 5.65 (19300) 7.32 (25000) 7.21 (24600)
4.19 (14300) 4.39 (15000) 4.54 (15500) 4.75 (16200) 6.12 (20900) 6.09 (20800)
35.0°C
(95°F)
Sensible
Total
40.6°C
(105°F)
Sensible
Total
46.1°C
(115°F**)
Sensible
Net capacity data based on 23.9°C (75°F) DB 16.9°C (62.5°F) WB indoor ambient - kW (BTUH)*
Outdoor ambient
Total
Sensible
Total
4.81 (16400) 5.54 (18900) 5.74 (19600) 6.15 (21000) 8.38 (28600) 8.00 (27300)
4.28 (14600) 4.57 (15600) 4.81 (16400) 4.98 (17000) 6.56 (22400) 6.42 (21900)
4.48 (15300) 5.27 (18000) 5.39 (18400) 5.89 (20100) 7.85 (26800) 7.59 (25900)
4.16 (14200) 4.48 (15300) 4.66 (15900) 4.86 (16600) 6.36 (21700) 6.24 (21300)
4.22 (14400) 4.98 (17000) 4.98 (17000) 5.60 (19100) 7.32 (25000) 7.18 (24500)
4.22 (14400) 4.37 (14900) 4.51 (15400) 4.75 (16200) 6.12 (20900) 6.07 (20700)
3.90 (13300) 4.69 (16000) 4.60 (15700) 5.24 (17900) 6.83 (23300) 6.71 (22900)
3.90 (13300) 4.25 (14500) 4.34 (14800) 4.60 (15700) 5.92 (20200) 5.89 (20100)
29.4°C
(85°F)
35.0°C
(95°F)
Sensible
Total
40.6°C
(105°F)
Sensible
Total
46.1°C
(115°F)**
Sensible
Evaporator Air Flow - Dry Coil
External Static Pressure
0.0 Pa (0.0 - IN WG)
25 Pa (0.1 - IN WG)
50 Pa (0.2 - IN WG)
75 Pa (0.3 - IN WG)
100 Pa (0.4 - IN WG)
125 Pa (0.5 - IN WG)
Evaporator Air Flow - Wet Coil
External Static Pressure
0.0 Pa (0.0 - IN WG)
25 Pa (0.1 - IN WG)
50 Pa (0.2 - IN WG)
75 Pa (0.3 - IN WG)
100 Pa (0.4 - IN WG)
125 Pa (0.5 - IN WG)
Evaporator
3
M /hr (CFM)
1230 (720)
1170 (690)
1100 (650)
1060 (620)
-
1320 (770)
1240 (730)
1190 (700)
1130 (670)
-
1840 (1080)
1730 (1020)
1600 (940)
1460 (860)
-
-
-
-
3
M /hr (CFM)
1200 (710)
1150 (670)
1090 (640)
1020 (600)
-
1290 (760)
1220 (720)
1160 (680)
1100 (650)
-
1700 (1000)
1590 (930)
1460 (860)
1330 (780)
-
-
-
-
Motor kW (Hp)
0.19 (0.25)
0.19 (0.25)
0.19 (0.25)
40.6 x 82.5 x 5 - one
(16 x 32.5 x 2)
40.6 x 82.5 x 5 - one
(16 x 32.5 x 2)
16 x 32.5 x 2 - one
(40.6 x 82.5 x 5)
Filter Sizes - Quantity cm (in.)
Drain Connection - ID in.
3/4
3/4
3/4 (1.9)
150 (330)
159 (350)
Weight - w/o Economizer kg (Ib)
Weight - with Economizer kg (Ib)
150 (330)
159 (350)
150 (330)
159 (350)
* Based on rated airflow with no external static and no outside air.
** For applications above 46.1°C (115°F) use high ambient option.
22
Specifications
Table 9
Technical data, 50 Hz, continued
Model
ET047, ET347
Scroll
ET059, ET359
Scroll
Compressor type
Net capacity data based on 26.6°C (80°F) DB/19.4°C (67°F) WB indoor ambient - kW (BTUH)*
Outdoor ambient
Total
12.22 (41700)
9.73 (33200)
11.66 (39800)
9.52 (32500)
11.05 (37700)
9.32 (31800)
10.43 (35600)
9.08 (31000)
14.97 (51100)
10.78 (36800)
14.36 (49000)
10.55 (36000)
13.68 (46700)
10.28 (35100)
13.01 (44400)
10.05 (34300)
29.4°C
(85°F)
Sensible
Total
35.0°C
(95°F)
Sensible
Total
40.6°C
(105°F)
Sensible
Total
46.1°C
(115°F)**
Sensible
Net capacity data based on 23.9°C (75°F) DB/16.9°C (62.5°F) WB indoor ambient - kW (BTUH)*
Outdoor Ambient
Total
Sensible
Total
11.43 (39000)
9.46 (32300)
10.90 (37200)
9.26 (31600)
10.34 (35300)
9.02 (30800)
9.76 (33300)
8.79 (30000)
14.03 (47900)
10.55 (36000)
13.45 (45900)
10.28 (35100)
12.83 (43800)
10.05 (34300)
12.13 (41400)
9.76 (33300)
29.4°C
(85°F)
35.0°C
(95°F)
Sensible
Total
46.1°C
(115°F)**
Sensible
Total
46.1°C
(115°F)**
Sensible
Evaporator Air Flow - Dry Coil (Derate ESP by 0.15 - IN WG (50 Pa) for ET347 and ET359)
3
External Static Pressure
0.0 Pa (0.0 - IN WG)
25 Pa (0.1 - IN WG)
50 Pa (0.2 - IN WG)
75 Pa (0.3 - IN WG)
100 Pa (0.4 - IN WG)
125 Pa (0.5 - IN WG)
M /hr (CFM)
2870 (1690)
2700 (1590)
2500 (1470)
2330 (1370)
-
2870 (1690)
2700 (1590)
2500 (1470)
2330 (1370)
-
-
-
Evaporator Air Flow - Wet Coil (Derate ESP by 0.15 - IN WG (50 Pa) for ET347 and ET359)
3
External Static Pressure
0.0 Pa (0.0 - IN WG)
25 Pa (0.1 - IN WG)
50 Pa (0.2 - IN WG)
75 Pa (0.3 - IN WG)
100 Pa (0.4 - IN WG)
125 Pa (0.5 - IN WG)
M /hr (CFM)
2550 (1500)
2380 (1400)
2240 (1320)
2070 (1220)
-
2550 (1500)
2380 (1400)
2240 (1320)
2070 (1220)
-
-
-
Evaporator
Motor kW (Hp)
0.37 (0.50)
0.37 (0.50)
53.3 x 92 x 5 - one
(21 x 36.25 x 2)
53.3 x 92 x 5 - one
(21 x 36.25 x 2)
Filter Sizes - Quantity cm (in.)
Drain Connection - ID in.
3/4
3/4
Weight - w/o Economizer kg (lb)
Weight - with Economizer kg (lb)
213 (470)
222 (490)
213 (470)
222 (490)
* Based on rated airflow with no external static and no outside air.
** For applications above 46.1°C (115°F) use high ambient option.
23
Specifications
Table 10 Optional heater capacity, 60 Hz
Heater Capacity - kW
3 Ton
Nominal Heater Rating
5 kW
1.5 Ton
2 Ton
4 Ton
5 Ton
Capacity @ 208V-1ph
Capacity @ 230V-1ph
Capacity @ 240V-1ph
Capacity @ 208V-3ph
Capacity @ 230V-3ph
Capacity @ 240V-3ph
Capacity @ 460V-3ph
Capacity @ 480V-3ph
3.756
4.592
5.000
n/a
n/a
n/a
3.756
4.592
5.000
3.756
4.592
5.000
4.592
5.000
3.756
4.592
5.000
3.756
4.592
5.000
4.592
5.000
3.756
4.592
5.000
3.756
4.592
5.000
4.592
5.000
3.756
4.592
5.000
3.756
4.592
5.000
4.592
5.000
n/a
n/a
10 kW
Capacity @ 208V-1ph
Capacity @ 230V-1ph
Capacity @ 240V-1ph
Capacity @ 208V-3ph
Capacity @ 230V-3ph
Capacity @ 240V-3ph
Capacity @ 460V-3ph
Capacity @ 480V-3ph
7.511
9.184
10.000
n/a
n/a
n/a
7.511
9.184
10.000
7.511
9.184
10.000
9.184
7.511
9.184
10.000
7.511
9.184
10.000
9.184
7.511
9.184
10.000
7.511
9.184
10.000
9.184
10.000
7.511
9.184
10.000
7.511
9.184
10.000
9.184
10.000
n/a
n/a
10.000
10.000
15 kW
Capacity @ 208V-1ph
Capacity @ 230V-1ph
Capacity @ 240V-1ph
Capacity @ 208V-3ph
Capacity @ 230V-3ph
Capacity @ 240V-3ph
Capacity @ 460V-3ph
Capacity @ 480V-3ph
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
11.267
13.776
15.000
11.267
13.776
15.000
13.776
15.000
11267
13776
15.000
11.267
13.776
15.000
13.776
15.000
11267
13776
15.000
11.267
13.776
15.000
13.776
15.000
Table 11
Optional heater capacity, 50 Hz
Heater Capacity - kW
3 Ton
Nominal Heater Rating
1.5 Ton
2 Ton
4 Ton
5 Ton
5 kW
Capacity @ 220V-1ph
4.201
5.000
3.472
n/a
n/a
n/a
4.201
5.000
3.472
4.592
5.000
4.192
5.000
4.201
5.000
3.472
4.592
5.000
4.192
5.000
4.201
5.000
3.472
4.592
5.000
4.192
5.000
4.201
5.000
3.472
4.592
5.000
4.192
5.000
Capacity @ 240V-1ph
Capacity @ 200V-3ph
Capacity @ 230V-3ph
Capacity @ 240V-3ph
Capacity @ 380V-3ph
Capacity @ 415V-3ph
n/a
10 kW
Capacity @ 220V-1ph
Capacity @ 240V-1ph
Capacity @ 200V-3ph
Capacity @ 230V-3ph
Capacity @ 240V-3ph
Capacity @ 380V-3ph
Capacity @ 415V-3ph
8.403
10.000
n/a
n/a
n/a
8.403
10.000
6.944
9.184
10.000
8.384
8.403
10.000
6.944
9.184
10.000
8.384
8.403
10.000
6.944
9.184
10.000
8.384
8.403
10.000
6.944
9.184
10.000
8.384
n/a
n/a
10.000
10.000
10.000
10.000
15 kW
Capacity @ 220V-1ph
Capacity @ 240V-1ph
Capacity @ 200V-3ph
Capacity @ 230V-3ph
Capacity @ 240V-3ph
Capacity @ 380V-3ph
Capacity @ 415V-3ph
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
12.604
15.000
10.417
13.776
15.000
12.577
15.000
12.604
15.000
10.417
13.776
15.000
12.577
15.000
12.604
15.000
10.417
13.776
15.000
12.577
15.000
24
Specifications
Table 12 Electrical data, 60 Hz - amps
No Heat
15 kW Heat*
5 kW Heat
10 kW Heat
Circ1
Circ2
Model
Volts Phase FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD
ET018H 208/230
ET018S 208/230
ET024H 208/230
ET024S 208/230
ET024H 208/230
ET024S 208/230
1
1
1
1
3
3
3
3
1
1
3
3
3
3
13.4 15.8 25 23.4 29.3 30 44.4 55.5 60
14.5 17.2 25 23.4 29.3 30 44.4 55.5 60
14.7 17.4 25 23.4 29.3 30 44.4 55.5 60
15.2 18.1 30 23.4 29.3 30 44.4 55.5 60
NA
NA
NA
NA
NA
NA
NA
NA
11.3 13.2 20 14.4 18
11.7 13.7 20 14.4 18
20 26.4 33
20 26.4 33
35
35
ET024H
ET024S
460
460
5.9 6.9
5.9 6.9
15
15
7.3 9.1
7.3 9.1
15 13.3 16.6 20
15 13.3 16.6 20
ET036H 208/230
ET036S 208/230
ET036H 208/230
ET036S 208/230
21.8 26.3 45 23.4 29.3 45 44.4 55.5 60 44.4 55.5 60
19.5 23.4 40 23.4 29.3 40 44.4 55.5 60 44.4 55.5 60
21 26.3 30
21 26.3 30
15.2 18.1 30 15.2 18.1 30 26.4 33
15.2 18.1 30 15.2 18.1 30 26.4 33
35 38.4 48
35 38.4 48
50
50
ET036H
ET036S
460
460
6.8
8
15
15
7.3 9.1
7.7 9.1
15 13.3 16.6 20 19.3 24.1 25
15 13.3 16.6 20 19.3 24.1 25
7.7 9.1
ET048S
ET348S
208/230
208/230
460
1
3
3
1
3
3
31.9 38
50 31.9 38
50 46.2 57.8 60 46.2 57.8 60
21 26.3 30
ET048S
ET348S
21.9 25.5 35 21.9 25.5 35 28.2 35.3 35 40.2 50.3 60
11 12.8 20 11 12.8 20 14.1 17.6 20 20.1 25.1 30
ET048S
ET348S
ET060S
ET360S
208/230
208/230
460
37.7 45.2 60 37.7 45.2 60 46.2 57.8 60 46.2 57.8 60
28.3 33.5 50 28.3 33.5 50 28.3 35.3 50 40.2 50.3 50
13.8 16.3 25 13.8 16.3 25 14.1 17.6 25 20.1 25.1 30
21 26.3 30
ET060S
ET360S
ET060S
ET360S
* 15 kW heat option @ 208/230 - 1 phase requires two electrical feeds.
Circuit 1 supplies the compressor, condenser, 10 kW heat and the evaporator motor.
Circuit 2 supplies the remaining 5 kW heat.
25
Specifications
Table 13 Electrical data, 50 Hz - amps
No Heat
15 kW Heat*
5 kW Heat
10 kW Heat
Circ1
Circ2
Model
Volts Phase FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD FLA WSA OPD
ET017H 220/240
ET017S 220/240
ET023H 220/240
ET023S 220/240
ET023H 380/415
ET023S 380/415
ET035H 220/240
ET035S 220/240
ET035H 200/230
ET035S 200/230
ET035H 380/415
ET035S 380/415
1
1
1
1
3
3
1
1
3
3
3
3
12.8 15.1 20 23.4 29.3 30 44.4 55.5 60
13.8 16.3 25 23.4 29.3 30 44.4 55.5 60
13.7 16.2 25 23.4 29.3 30 44.4 55.5 60
15.2 18.1 30 23.4 29.3 30 44.4 55.5 60
NA
NA
NA
NA
NA
NA
5.9 6.9
6.3 7.4
15
15
8.3 10.4 15 15.3 19.1 20
8.3 10.4 15 15.3 19.1 20
20.3 24.4 40 23.4 29.3 40 44.4 55.5 60 44.4 55.5 60
17.4 20.8 35 23.4 29.3 35 44.4 55.5 60 44.4 55.5 60
21 26.3 30
21 26.3 30
15.2 18.1 30 15.2 18.1 30 26.4 33
14.5 17.2 25 14.5 18 25 26.4 33
35 38.4 48
35 38.4 48
50
50
6.8
8
15
15
8.3 10.4 15 15.3 19.1 20 22.3 27.9 30
8.3 10.4 15 15.3 19.1 20 22.3 27.9 30
7.7 9.1
ET047S
200/230
ET347S
3
3
3
3
21.9 25.5 35 21.9 25.5 35 28.2 35.3 35 40.2 50.3 60
11 12.8 20 11 12.8 20 16.1 20.1 25 23.1 28.9 30
ET047S
380/415
ET347S
EF059S
200/230
ET359S
28.3 33.5 50 28.3 33.5 50 28.3 35.3 50 40.2 50.3 50
13.8 16.3 25 13.8 16.3 25 16.1 20.1 20 23.1 28.9 30
ET059S
380/415
ET359S
* 15 kW heat option @ 220/240 - 1 phase requires two electrical feeds.
Circuit 1 supplies the compressor, condenser, 10 kW heat and the evaporator motor.
Circuit 2 supplies the remaining 5 kW heat.
26
Troubleshooting
8.0 TROUBLESHOOTING
Table 14 Troubleshooting guide
Problem
Probable Cause
Remedy
Check voltage to input circuit breaker.
Unit will not start
No power to unit
Control voltage circuit
breaker open
Locate short and reset breaker.
Shut off by external
thermostat or stat is
defective
Check operation of thermostat.
No cooling
Low refrigerant
charge
Check with gauges.
Compressor contactor Check voltage at contactor. If not present refer to print and determine
not pulling in
voltage loss. Check enthalpy sensor for full CCW or D setting.
No output from
thermostat
Check operation of stat. Should have voltage output to Y terminal during
cooling.
Unit cycles on
high pressure switch
Loss or restriction of
air flow
Check condenser blower assembly for proper operation. Check for dirty
coil or inlet grille restriction.
Defective fan cycling
control
Switch should make @ 240 PSIG ±10 (1655 kPa ±68.9). (Check settings
on adjustable switch when supplied.)
Heat does not operate No voltage output
from thermostat
Check stat for proper output to W terminal.
Fuseable link blown
Bad contactor
Check for open and replace.
Check for open and replace.
27
Maintenance Inspection Checklist
9.0 MAINTENANCE INSPECTION CHECKLIST
Liebert InteleCool2
Date:__________________________
Model #:________________________
Prepared by:___________________________________
Serial #: ______________________________________
Monthly
Filters
___ 1. Unrestricted air flow
___ 2. Check filter
___ 3. Wipe section clean
Fan Section
___ 1. Impellers free of debris
___ 2. Bearings free
Economizer
___ 1. Check damper for tightness and wear
Semiannually
Compressor Section
___ 1. Check for leaks
___ 2. Vibration isolation
Air Cooled Condenser
___ 1. Condenser coil clean
___ 2. Motor mount tight
___ 3. Bearings free
___ 4. Refrigerant lines properly supported
Refrigeration Cycle
___ 1. Check suction pressure
___ 2. Check head pressure
___ 3. Check superheat
___ 4. Evaporator coil clean
___ 5. Insulation intact
Electric Panel
___ 1. Check electrical connections
___ 2. Check operational sequences
Notes:
Signature _________________________________________________________
Make photocopies of this form for your records
28
Parts
10.0 PARTS
Table 15 Refrigeration system parts, 1.5 and 2 ton units
1.5 Ton
2 Ton
ET018P ET023S ET023M ET024P ET024Y ET024A
220-240V 208-230V 220-240V 380-415V 208-230V 208-230V 460V
ET017S
Figure
No.
Part Name/
Description
Part #
1Ph 50Hz 1Ph 60Hz 1Ph 50Hz 3Ph 50Hz 1Ph 60Hz 3Ph 60Hz 3Ph 60Hz
Run capacitor, recip comp
Run capacitor, scroll comp
C03-005A
1
1
1
N/A
N/A
N/A
N/A
N/A
N/A
1A19537P1
1
1
1
1
1A19537P1
1A19538P1
N/A
N/A
N/A
N/A
N/A
N/A
1
1
Compressors, reciprocating
Compressors, scroll
Pressure switches
146301P1
146300P1
146303P2
159147P2
146303P1
159147P1
1
1
1
1
1
1
1
1
156204P1
159146P1
138493P2
148324P2
159145P1
159148P1
159148P2
1
1
1
1
1
1
1
1
1
1
High pressure - 400 psi
Fan cycle switch - 170 psi
Low pressure - 35 psi
Adj Pr Sw for Adj FCC
Filter drier
159482P1
159483P1
159484P1
P67-0110
127185P1
159118P1
159200P1
1
1
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Crankcase heaters
1
1
1
1
1
1
1
1
159202P1
159202P2
1A17648P1
159136P1
1C19540P1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Optional feature - quantity 1 (as required)
29
Parts
Table 16 Refrigeration system parts, 3 ton units
3 Ton
ET035M ET036P
220-240V 200-240V 380-415V 208-230V
ET035S
ET035N
ET036Y
ET036A
460V
Figure
No.
Part Name/
Description
208-230V
Part #
1Ph 50Hz 3Ph 50Hz 3Ph 50Hz 1Ph 60Hz 3Ph 60Hz 3Ph 60Hz
Run capacitor, recip comp
Run capacitor, scroll comp
Compressors, reciprocating
1A19538P1
1
N/A
N/A
1
1
N/A
N/A
1A19538P1
C15-0090
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
1
1
Compressors, scroll
159124P1
159212P2
159212P3
159212P1
1
1
1
1
1
Pressure switches
148221P2
148325P1
148325P2
159149P1
1
1
1
1
1
1
1
1
1
1
1
1
High pressure - 400 psi
Fan cycle switch - 170 psi
Low pressure - 35 psi
159482P1
159483P1
159484P1
P67-0110
127185P1
159118P1
159180P1
1C19507P2
Optional feature—quantity 1 (as required)
Optional feature—quantity 1 (as required)
Optional feature—quantity 1 (as required)
Adj Pr Sw for Adj FCC
Filter drier
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Crankcase Heaters
132102P1
132102P2
1A17648P1
159136P1
1C19540P1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Optional feature—quantity 1 (as required)
30
Parts
Table 17 Refrigeration system parts, 4-ton units
4 Ton
ET047N
ET347N
ET047M
ET347M
ET048P
ET348P
ET048Y
ET348Y
ET048A
ET348A
Figure
No.
Part Name/
Description
200-230V
3Ph 50Hz
380-415V
3Ph 50Hz
208-230V
1Ph 60Hz
208-230V
3Ph 60Hz
460V
3Ph 60Hz
Part #
Run capacitor, scroll comp
Cap. 40μF, 370V
1A19538P1
N/A
1
N/A
1
1
N/A
1
N/A
1
Compressors, scroll
Comp. 208/230-3
159153P1
159153P2
159152P1
Comp. 380/460-3
Comp. 200/230-1
1
1
Pressure switches
High pressure - 400 psi
Fan cycle switch - 170 psi
Low Pressure - 35 psi
Adj Pr Sw for Adj FCC
Filter drier
159482P1
159483P1
159484P1
P67-0110
128177P1
159235P1
159237P1
159264P1
1
1
1
1
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Condenser coil - 4/5T
Evaporator coil - 4/5T
Thermal expansion valve - 4T
Crankcase heaters
Strap style 240V recips
Strap style 480V recips
Strap style 240V scrolls
Strap style 480V scrolls
Soft start kit
159202P1
159202P2
132102P1
132102P2
1C19540P1
1
1
1
1
1
1
1
1
1
1
Optional feature - quantity 1 (as required)
31
Parts
Table 18 Refrigeration system parts, 5-ton units
5 Ton
ET059N
ET359N
ET059M
ET359M
ET060P
ET360P
ET060Y
ET360Y
ET060A
ET360Y
Figure
No.
Part Name/
Description
200-230V
3Ph 50Hz
380-415V
3Ph 50Hz
208-230V
1Ph 60Hz
208-230V
3Ph 60
460V
3Ph 60Hz
Part #
Run capacitor, scroll comp
Cap. 60μF, 370V
E13-2430
N/A
1
N/A
1
1
N/A
1
N/A
1
Compressors, scroll
Comp. 200/240-3
132101P2
132101P3
132101P1
Comp. 380/460-3
Comp. 200/230-1
1
1
Pressure switches
High pressure - 400 psi
Fan cycle switch - 170 psi
Low Pressure - 35 psi
Adj Pr Sw for Adj FCC
Filter drier
159482P1
159483P1
159484P1
P67-0110
128177P1
159235P1
159237P1
159264P2
1
1
1
1
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Condenser coil - 4/5T
Evaporator coil - 4/5T
Thermal expansion valve - 5T
Crankcase heaters
Strap style 240V scrolls
Strap style 480V scrolls
Soft start kit
132102P1
132102P2
1C19540P1
1
1
1
1
1
Optional feature - quantity 1 (as required)
32
Parts
Table 19 Electric panel, 1.5- and 2-ton units
1.5 Ton
ET017S ET018P
2 Ton
ET023S ET023M ET024P
ET024Y
ET024A
460V
Figure
No.
Part Name /
Description
220-240V 208-230V 220-240V 380-415V 208-230V 208-230V
1Ph 50Hz 1Ph 60Hz 1Ph 50Hz 3Ph 50Hz 1Ph 60Hz 3Ph 60Hz 3Ph 60Hz
Part #
Circuit breakers
159463P1
159463P2
1
1
1
1
1
1
1
138457P7 138457P3 138457P3 147957P8 138457P3 147957P7 147957P8
138457P5 138457P5 138457P5 147957P8 138457P5 147957P7 147957P8
138457P2 138457P2 138457P2 147957P1 138457P2 147957P10 147957P1
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Circuit breakers - scrolls
138457P3 138457P3 138457P5 147957P8 138457P5 147957P7 147957P8
138457P5 138457P5 138457P5 147957P8 138457P5 147957P7 147957P8
138457P2 138457P2 138457P2 147957P1 138457P2 147957P10 147957P1
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Contactor, compressor
E-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
124501P1
1
1
1
1
1
1
1
1
Contactor, heater, 5 kW
E-013A
124501P1
Contactor, heater, 10 kW
E-011C
124501P1
E-0110
E-0130
E-013A
E-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Wall thermostat, 1 stage
Thermostat base
E03-0170
159468P1
138968P1
138940P1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Optional features
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
E03-0170
E-0130
Common alarm assembly
B02-0190
E-3530
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
E03-0170
E03-0170
E-0230
33
Parts
Table 20 Electric panel parts, 3-ton units
3 Ton
ET036P
220-240V 200-240V 380-415V 208-230V
ET035S
ET035N
ET035M
ET036Y
ET036A
460V
Figure
No.
Part Name /
Description
208-230V
Part #
1Ph 50Hz 3Ph 50Hz 3Ph 50Hz 1Ph 60Hz 3Ph 60Hz 3 3Ph 60Hz
Circuit breakers
159463P1
159463P2
1
1
1
1
1
1
138457P1 147957P5 147957P8 138457P8
138457P1 147957P5 147957P8 138457P8
147957P5
147957P5
147957P8
147957P8
138457P2 147957P10 147957P1 138457P2 147957P10 147957P1
138457P2 147957P3 147957P2 138457P2 147957P3 147957P11
138457P5 N/A N/A 138457P5
Circuit breakers - scrolls
N/A
N/A
138457P9 147957P9 147957P8 138457P1
138457P9 147957P9 147957P8 138457P1
147957P5
147957P5
147957P8
147957P8
138457P2 147957P10 147957P1 138457P2 147957P10 147957P1
138457P2 147957P3 147957P2 138457P2 147957P3 147957P11
Contactor, compressor
138457P5
N/A
N/A
138457P5
N/A
N/A
E-011B
1
1
124501P1
E-0110
1
1
1
1
1
1
Contactor, heater, 5 kW
E-013A
1
1
1
1
124501P1
1
1
1
1
Contactor, heater, 10 kW
E-011C
124501P1
E-0110
1
1
Contactor, heater, 15 kW
E-013A
1
1
1
1
E-011C
E-0110
1
1
E-009F
1
1
1
1
Wall thermostat, 1 stage
Thermostat base
E-0130
1
1
1
1
E-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
E-013A
148089P1
E03-0170
159468P1
138968P1
138940P1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Optional features
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
E03-0170
E-0130
Common alarm assembly
B02-0190
E-3530
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
E03-0170
E03-0170
E-0230
34
Parts
Table 21 Electric panel parts, 4-ton unit
4 Ton
ET047N
ET347N
ET047M
ET347M
ET048P
ET348P
ET048Y
ET348Y
ET048A
ET348A
Figure
No.
Part Name /
Description
200-230V
3Ph 50Hz
380-415V
3Ph 50Hz
208-230V
1Ph 60Hz
208-230V
3Ph 60Hz
460V
Part #
159463P1
159463P2
3Ph 60Hz
Transformer 208/230V
Transformer 360/460V
Circuit breakers - scrolls
No heat
1
1
1
1
1
147957P10
147957P10
147957P10
147957P6
N/A
147957P1
147957P1
147957P11
147957P2
N/A
138457P4
138457P4
138457P2
138457P2
138457P5
147957P10
147957P10
147957P10
147957P6
N/A
147957P1
147957P1
147957P1
147957P2
N/A
5 kW heat
10 kW heat
15 kW heat
Contactor, compressor
2 pole
E-011C
124501P1
E-0110
1
3 pole
1
1
3 pole
1
1
1
1
Contactor, heater, 5 kW
2 pole
E-013A
1
1
3 pole
124501P1
1
1
1
1
Contactor, heater, 10 kW
2 pole
E-011C
124501P1
E-0110
1
3 pole
3 pole
1
Contactor, heater, 15 kW
E-013A
1
1
2 pole
E-011C
3 pole
E-0110
1
1
3 pole
E-009F
1
1
1
1
Contactor evaporator fan
Contactor evaporator fan
Contactor, condenser fan
Time delay relay, anticycle
E-0130
1
1
E-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
E-013A
148089P1
E03-0170
159468P1
138968P1
138940P1
1
1
Wall thermostat, 1 stage
Thermostat base
1
1
1
1
1
1
1
1
1
Optional features
138491P1
E03-0170
E-0130
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Common alarm assembly
Air flow switch
T/D relay
B02-0190
E-3530
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Relay R1
E03-0170
E03-0170
E-0230
Relay R2
Thermostat
35
Parts
Table 22 Electric panel parts, 5-ton unit
5 Ton
ET059N
ET359N
ET059M
ET359M
ET060P
ET360P
ET060Y
ET360Y
ET060A
ET360Y
Figure
No.
Part Name /
Description
200-230V
3Ph 50Hz
380-415V
3Ph 50Hz
208-230V
1Ph 60Hz
208-230V
3Ph 60Hz
460V
Part #
159463P1
159463P2
3Ph 60Hz
Transformer 208/230V
Transformer 360/460V
Circuit breakers - scrolls
No heat
1
1
1
1
1
147957P3
147957P3
147957P3
147957P3
N/A
147957P11
147957P11
147957P11
147957P2
N/A
138457P2
138457P2
138457P2
138457P2
138457P5
147957P3
147957P3
147957P3
147957P3
N/A
147957P11
147957P11
147957P11
147957P2
N/A
5 kW heat
10 kW heat
15 kW heat
Contactor, compressor
2 pole
E-011C
124501P1
E-0110
1
3 pole
1
1
3 pole
1
1
1
1
Contactor, heater, 5 kW
2 pole
E-013A
1
1
3 pole
124501P1
1
1
1
1
Contactor, heater, 10 kW
2 pole
E-011C
124501P1
E-0110
3 pole
3 pole
1
1
Contactor, heater, 15 kW
E-013A
1
1
2 pole
E-011C
E-0110
3 pole
1
1
3 pole
E-009F
1
1
1
1
Contactor evaporator fan
Contactor evaporator fan
Contactor, condenser fan
Time delay relay, anticycle
E-0130
1
1
E-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
E-013A
148089P1
E-0130
1
1
Wall thermostat, 1 stage
Thermostat base
159468P1
138968P1
138940P1
1
1
1
1
1
1
1
1
1
Optional features
138491P1
E03-0170
E-0130
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Common alarm assembly
Air flow switch
T/D relay
B02-0190
E-3530
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Relay R1
E03-0170
E03-0170
E-0230
Relay R2
Thermostat
36
Parts
Table 23 Motor parts, heater, Economizer, 1.5- and 2-ton units
1.5 Ton
2 Ton
ET017S
ET018P ET023S ET023M ET024P ET024Y ET024A
Figure
No.
Part Name/
Description
220-240V 208-230V 220-240V 380-415V 208-230V 208-230V
460V
Part # 1Ph 50Hz 1Ph 60Hz 1Ph 50Hz 3Ph 50Hz 1Ph 60Hz 3Ph 60Hz 3Ph 60Hz
Condenser fan motors
Standard
159206P1
159206P2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
High ambient option
159205P1
159205P2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
B-1220
159175P1
Evaporator fan motors
159207P1
159207P2
159201P2
159201P1
B-1220
1
1
1
1
1
1
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
159174P1
100061
S-3380
127843P1
147993P1
127843P2
127843P3
Heaters - optional
159170P1
159170P2
159170P3
159170P4
159170P5
159170P6
147896P1
R-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
2
3
1
1
4
3
1
1
4
3
1
1
4
3
1
1
2
3
1
1
4
3
1
1
3
Economizer - optional
146807G1
159115P1
159471P1
138401P1
159204P1
159137P1
129645P1
138447P2
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
1
1
1
1
1
1
1
37
Parts
Table 24 Motor parts, heater, Economizer, 3-ton units
ET035S
3 Ton
ET036P
220-240V 200-240V 380-415V 208-230V
ET035N
ET035M
ET036Y
ET036A
460V
Figure
No.
Part Name/
Description
208-230V
Part #
1Ph 50Hz 3Ph 50Hz 3Ph 50Hz 1Ph 60Hz 3Ph 60Hz 3 3Ph 60Hz
Condenser fan motors
Standard
Motor 1/8 Hp, 208/230V (std)
Motor 1/8 Hp, 380/460V (std)
159206P1
159206P2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Fan prop, 4 blade, 20", 26-deg 159112P2
High ambient option
1/5 Hp, 208/230V (high amb)
1/5 Hp, 380/460V (high amb)
159205P1
159205P2
1
1
1
1
1
1
1
1
Fan prop, 4 blade, 20", 22-deg 159112P1
1
1
1
1
1
1
1
1
1
1
1
1
Capacitor, run 5μF, 370V
Motor mount
B-1220
159175P1
Evaporator fan motors
159207P1
159207P2
159201P2
159201P1
B-1220
1
1
1
1
1
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
1
4
4
4
4
Blower, CW
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
1
1
1
1
1
1
4
4
4
4
Blower, CCW
Capacitor, run 5μF, 370V
Motor mount
159174P1
100061
Mount bolt
S-3380
Grommot washer
127843P1
147993P1
127843P2
127843P3
Screw
Grommot tube
Spacing sleeve
Heaters - optional
159170P1
159170P2
159170P3
159170P4
159170P5
159170P6
147896P1
R-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
2
3
1
1
4
3
1
1
3
3
1
1
2
3
1
1
4
3
1
1
3
R-013B
146807G1
Economizer - optional
159115P1
159471P1
138401P1
159204P1
159137P1
129645P1
138447P2
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
1
1
1
1
1
1
38
Parts
Table 25 Motor parts, heater, Economizer, 4-ton units
4 Ton
ET047N
ET347N
ET047M
ET347M
ET048P
ET348P
ET048Y
ET348Y
ET048A
ET348A
Figure
No.
Part Name/
Description
200-230V
3Ph 50Hz
380-415V
3Ph 50Hz
208-230V
1Ph 60Hz
208-230V
3Ph 60Hz
460V
3Ph 60Hz
Part #
Condenser fan motors
Standard
Motor 1/3 Hp, 200/240V (std)
Motor 1/3 Hp, 380/460V (std)
Fan prop, 4 blade, 24", 28-deg
High ambient option
1/2 Hp, 200/240V (high amb)
1/2 Hp, 380/460V (high amb)
Fan prop, 4 blade, 24", 24-deg
Capacitor, run 10μF, 370V
Motor mount
159266P1
159266P2
159241P2
1
1
1
1
1
1
1
1
1
1
1
1
1
159265P1
159265P2
159241P1
B03-0030
159175P1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Evaporator fan motors
Motor 1/2 Hp dual 200/230V
Motor 1/2 Hp dual 380/460V
Blower, CW
159267P1
159267P2
159254P2
159254P1
B03-0030
159263P1
100061
1
1
1
1
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
6
6
6
6
Blower, CW
Capacitor, run 10μF, 370V
Motor mount
Mount bolt
Mount nut
S-3380
Grommot washer
127843P1
147993P1
127843P2
127843P3
Screw
Grommot tube
Spacing sleeve
Heaters - optional
Heater element, 5kW, 240V
Heater element, 5kW, 277V
Heater element, 10kW, 240V
Heater element, 10kW, 277V
Heater element, 15kW, 240V
Heater element, 15kW, 277V
Fuse link, safety
159170P1
159170P2
159170P3
159170P4
159170P5
159170P6
147896P1
R-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
2
3
1
1
3
3
1
1
2
3
1
1
4
3
1
1
3
Therm switch, safety (5kW)
Therm switch, safety (10,15kW)
Jumper wire
R-013B
146807G1
Economizer - optional
Actuator motor, spring return
Min position potentiometer
Enthalpy control
159115P1
159471P1
138401P1
159204P1
159137P1
129645P1
138447P3
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Mixed air sensor
Push rod
Linkage, ball type
Filter, 20%, 2" x 21" x 36.25"
1
1
1
1
1
39
Parts
Table 26 Motor parts, heater, Economizer, 5-ton units
5 Ton
ET059N
ET359N
ET059M
ET359M
ET060P
ET360P
ET060Y
ET360Y
ET060A
ET360Y
Figure
No.
Part Name/
Description
200-230V
3Ph 50Hz
380-415V
3Ph 50Hz
208-230V
1Ph 60Hz
208-230V
3Ph 60
460V
3Ph 60Hz
Part #
Condenser fan motors
Standard
Motor 1/3 Hp, 200/240V (std)
Motor 1/3 Hp, 380/460V (std)
Fan prop, 4 blade, 24", 28-deg
High ambient option
1/2 Hp, 200/240V (high amb)
1/2 Hp, 380/460V (high amb)
Fan prop, 4 blade, 24", 24-deg
Capacitor, run 10μF, 370V
Motor mount
159266P1
159266P2
159241P2
1
1
1
1
1
1
1
1
1
1
1
1
1
159265P1
159265P2
159241P1
B03-0030
159175P1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Evaporator fan motors
Motor 1/2 Hp dual 200/230V
Motor 1/2 Hp dual 380/460V
Blower, CW
159267P1
159267P2
159254P2
159254P1
B03-0030
159263P1
100061
1
1
1
1
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
6
6
6
6
1
1
1
1
1
1
6
6
6
6
Blower, CW
Capacitor, run 10μF, 370V
Motor mount
Mount bolt
Mount nut
S-3380
Grommot washer
127843P1
147993P1
127843P2
127843P3
Screw
Grommot tube
Spacing sleeve
Heaters - optional
Heater element, 5kW, 240V
Heater element, 5kW, 277V
Heater element, 10kW, 240V
Heater element, 10kW, 277V
Heater element, 15kW, 240V
Heater element, 15kW, 277V
Fuse link, safety
159170P1
159170P2
159170P3
159170P4
159170P5
159170P6
147896P1
R-013A
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
3
1
1
2
3
1
1
3
3
1
1
2
3
1
1
4
3
1
1
3
Therm switch, safety (5kW)
Therm switch, safety (10,15kW)
Jumper wire
R-013B
146807G1
Economizer - optional
Actuator motor, spring return
Min position potentiometer
Enthalpy control
159115P1
159471P1
138401P1
159204P1
159137P1
129645P1
138447P3
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Optional feature - quantity 1 (as required)
Mixed air sensor
Push rod
Linkage, ball type
Filter, 20%, 2" x 21" x 36.25"
1
1
1
1
1
40
Parts
Figure 12 Heater assembly
5kW &10kW
15kW
5kW, 10kW & 15kW
208/230V, 3 phase
(Delta)
5kW, 10kW & 15kW
380/460V, 3 phase
(Wye)
208/230V, 1 phase
(Parallel)
208/230V, 1 phase
(Parallel)
Connection
Connection
Connection
Connection
159171G1 & G2,
G13 & G14
159171G3 & G15
159171G4, G5 &G6
G16, G17 & G18
159171G7, G8, G10, G11& G12
G19, G20, G21, G22, G23& G24
1
44
Parts
Notes
47
Parts
48
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