INSTALLATION
INSTRUCTION
OUTDOOR SPLIT-SYSTEM
AIR CONDITIONER
MODELS: 10, 12, 13 AND 14 SEER
1 PHASE - 1.5 TO 5 TONS
TABLE OF CONTENTS
GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . 2
INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
CHECK ELECTRICAL POWER SUPPLY . . . . . . . . . 2
SELECTING EQUIPMENT LOCATION . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . .4
OUTDOOR UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
INDOOR UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
REFRIGERANT LINE (SWEAT FIT) . . . . . . . . . . . . . 4
INSULATION OF VAPOR LINE . . . . . . . . . . . . . . . . 4
RE-ASSEMBLING, BRAZING AND CLEANING OF
JOINT CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . 5
REFRIGERANT LINE SUPPORT . . . . . . . . . . . . . . . 5
CHARGING AND LEAK TESTING . . . . . . . . . . . . . . 5
TOTAL LINE LENGTH . . . . . . . . . . . . . . . . . . . . . . . 5
ORIFICE SELECTION (ON SWEAT FIT COILS) . . . 5
REFRIGERANT VALVE OPERATION . . . . . . . . . . . 6
OIL TRAPPING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . .8
MEASUREMENT METHOD . . . . . . . . . . . . . . . . . . . 8
SUPERHEAT CHARGING METHOD . . . . . . . . . . . . 8
CHECKOUT PROCEDURE . . . . . . . . . . . . . . . . . . 10
SYSTEM OPERATION CHECKOUT . . . . . . . . . . . 10
CAUTION:READ ALL SAFETY GUIDES BEFORE
YOU START TO INSTALL YOUR UNIT.
SAVE THIS MANUAL
035-13606-003 Rev. A (202)
035-13606-003 Rev. A (202)
A minimum clearance of 18 inches is required for service at
the control panel and compressor compartments access. A
10 inch clearance is required for the air inlet to the outdoor
coil around the perimeter of the unit. The air discharge of the
unit requires a 60 inch clearance between the top of the unit
and any obstruction. See Figure 1.
Provide ample clearance from shrubs to allow adequate air to
pass across the outdoor coil without leaves or branches
being pulled into the coil.
Consideration should be given to the distance and routing of
electrical service that would have to be run to connect the
outdoor unit.
The length of the refrigerant tubing, between the outdoor unit
and indoor coil, should be as short as possible to avoid
capacity and efficiency loss. Excessive spacing of the out-
door unit from the home can lead to the refrigerant lines
being restricted by trampling or by being punctured by lawn
mowers. Locate the outdoor unit away from bedroom win-
dows or other rooms where sound might be objectionable.
The unit must be located outdoors and must not be con-
nected to duct work. It is recommended the outdoor unit be
mounted upon a solid base that will not shift or settle. Top of
base should be two inches above grade. Thought should be
given to water drainage away from the outdoor unit. Drain
holes in the base pan must be kept clear.
Adverse effects of prevailing winds, blowing snow or sleet
onto the outdoor coil can be eliminated by placing the outdoor
unit where the wind does not blow across the unit. Trees,
shrubs, corners of buildings and fences standing off from the
coil can reduce capacity loss due to wind chill effect.
MINIMUM 24” SERVICE ACCESS
CLEARANCE ON ONE SIDE
THERMOSTAT
TO FURNACE OR
AIR HANDLER
TERMINAL BLOCK
60” OVERHEAD
CLEARANCE
WEATHERPROOF
DISCONNECT
SWITCH
NEC CLASS 1 WIRING
NEC CLASS 2 WIRING
10” CLEARANCE
COIL AREA
TO INDOOR COIL
SEAL OPENING(S) WITH
PERMAGUM OR EQUIVALENT
NOTE: ALL OUTDOOR WIRING
MUST BE WEATHERPROOF.
CONTROL ACCESS PANEL
FIGURE 1 : TYPICAL RESIDENTIAL OUTDOOR UNIT LOCATION
Unitary Products Group
3
035-13606-003 Rev. A (202)
Use only ACR grade copper tubing and keep ends sealed
until joints are made.
INSTALLATION
OUTDOOR UNIT
The correct diameters of the refrigerant lines are listed in the
Tabular Data Sheet.
After the site has been selected, a solid base pad that will not
shift or settle should be provided. The base pad should not
come in contact with the foundation or side of the structure
because sound may be transmitted to the residence. The pad
should be located far enough away from the structure so the
outdoor unit is not closer than its minimum distances. See
Figure 1. Set the outdoor unit upon the pad with care to avoid
damage..
For best performance, select routing of refrigerant lines for
minimum distance and fewest number of bends.
Determine the path that the refrigerant lines will follow.
Starting at either the indoor coil or the outdoor unit refrigerant
line connections, carefully measure, cut, de-burr and fit cop-
per refrigerant lines along the path previously determined.
NOTE: If it is necessary for bends to be formed in the vapor
line, the radius should not be less than 12 inches.
Cut ends of the copper tubing square.
Do not remove the protective caps or plugs from
the unit refrigerant connections until the refriger-
ant lines are run and ready for final connection. If
this procedure is not observed, dirt and other par-
ticles will get into the system and plug various ori-
fices and small tubes.
Remove all burrs from tubing with a reamer, file or de-burring
tool.
When the indoor coil is above the outdoor unit, the vapor line
should be sloped toward the outdoor unit with a fall of at least
1/4 inch per 5 feet.
INDOOR UNITS
When the outdoor unit is above the indoor coil the horizontal
runs should be sloped toward the outdoor unit as described
above.
Install the indoor coil in the furnace or air handler according to
the installation instructions packed with each component.
REFRIGERANT LINE (SWEAT FIT)
INSULATION OF VAPOR LINE
The following steps are very important when setting up a
refrigeration system and need to be followed completely to
insure that a strong, flexible and leak tight system is obtained.
Insulate vapor line with 3/8" (or that required by local code)
closed cell insulation.
Slide tubing insulation onto the vapor line so that it is covered
completely from the indoor coil to the outdoor unit. Be sure
that the tubing is capped before sliding on insulation.
The installation of the copper refrigerant tubing must be done
with care to obtain reliable, trouble-free operation.
1. Selection of proper refrigerant tubing grade and size.
2. Refrigerant line routing, cutting and fitting.
3. Insulating the vapor line.
It is not necessary to insulate the liquid line, unless it is sub-
ject to excess heat in an uninsulated area.
NOTE: In areas of extreme temperatures and humidity,
additional insulation may be required to prevent excessive
condensation and loss of capacity.
4. Connecting the refrigerant lines to the indoor coil and
outdoor unit.
5. Proper preparation of joint connections.
Do not insulate liquid line and vapor line together. Liquid line
should not be in contact with the vapor line. See Figure 2.
6. Reassembling, cleaning and brazing the joint connec-
tions.
7. Pressure leak test all joints.
Tape
8. Evacuate refrigerant lines and indoor coil.
Liquid
Line
9. Charging refrigeration system (If the line length is other
than 15 feet). See Table 2.
Incorrect
Table 2: REFRIGERANT LINE CHARGE
LIQUID OD
3/8"
VAPOR OD
5/8"
R-22 CHARGE, OZ/FT
0.66
0.68
0.70
0.76
Sheet Metal Hanger
Correct
3/8"
3/4"
Insulated Vapor Line
3/8"
7/8"
3/8"
1-1/8"
FIGURE 2 : INSULATION OF VAPOR LINE
4
Unitary Products Group
035-13606-003 Rev. A (202)
When recovering refrigerant from a system, with a burnout,
follow a safe procedure due to possible contamination.
RE-ASSEMBLING, BRAZING AND CLEANING OF
JOINT CONNECTIONS
Avoid getting the refrigerant in the eyes or on the
skin.
When using hard solder, an inert gas such as dry
nitrogen must be introduced and permitted to
flow through tubing during brazing to displace air
and prevent oxidation.
Contaminated refrigerant must be recovered and returned to
the local refrigeration supply house for proper disposition.
Remove the Schrader Valve cores from the service valves.
Remove the plugs from the service valve field tubing connec-
tions. Clean the joints to be brazed.
TOTAL LINE LENGTH
Units should be installed only with approved system combina-
tion (indoor/outdoor) as specified in the Technical Guide.
NOTE: Do not overheat the connection to be brazed as this
can cause improper flow of solder, resulting in a weak and
leaking joint. Never apply heat directly to face of fitting. Do
not heat solder by direct contact with flame of the torch.
For systems with total line length exceeding 50 feet, see
APPLICATION DATA and work sheet "General Piping Rec-
ommendations and Refrigerant Line Length" for vapor and
liquid line sizing, calibration of liquid line pressure loss or
gain, determination of vapor line velocity, elevation limita-
tions, orifice connections, system charging, traps, etc.
When brazing copper tubing it is very important to preheat
the entire joint before applying the solder. This is done by
sweeping the flame steadily and evenly around the fitting, to
bring both fitting and tubing up to equal temperature before
applying the solder.
Systems with liquid line pressure loss or gain greater than 11
psi must be provided with corrected orifice size as noted in
.APPLICATION DATA.
Reassemble groups of tubing and fittings, brazing several
joints instead of one joint at a time. This reduces the chance
for error in the alignment of the assembly. Replace Schrader
Valve cores. DO NOT OPEN SERVICE VALVES AT THIS
TIME.
ORIFICE SELECTION (ON SWEAT FIT COILS)
NOTE: The proper orifice must be installed in the indoor coil
liquid line connection prior to the connection of the refrigerant
lines.
Clean joint connection immediately after brazing with wet rag.
REFRIGERANT LINE SUPPORT
Refrigerant lines should be supported in a way that no dips or
sags occur. We recommend four feet between supports. If
refrigerant lines are to be attached to the home structure,
care should be taken to eliminate the transmission of vibra-
tions. Attach the refrigerant lines to the indoor coil first.
Remove plugs from the indoor coil, then clean joints to be
brazed. Braze refrigerant lines to the indoor coil. Attach refrig-
erant lines to the outdoor unit.
Coil is under 30 to 35 psig (inert gas) pressure.
Each coil has an orifice installed in the fitting
between the liquid line connection and distributor.
The orifice is identified on a label next to the liq-
uid line connection.
The orifice shipped with the outdoor unit is based on the
“most sold” combination, but it may be changed, depending
on the capacity and efficiency of the outdoor unit, elevation
differences, and/or long total line lengths. An additional ori-
fice(s) is shipped with most outdoor units for the most com-
monly required replacement combinations. Other sizes must
be ordered from Source 1 Parts if required.
CHARGING AND LEAK TESTING
On systems with or without service valves the refrigerant
should be recovered or recycled in accordance with EPA reg-
ulations. In some cases this may require putting piercing
valves on both the high and low sides of the system.
See the appropriate Tabular Data Sheet for the correct orifice
size and charge adder. If the orifice size matches, nothing fur-
ther is required and the refrigerant lines may be connected
per the outdoor unit instruction. However, if another orifice
should be used, see the coil instruction for details to change
the orifice in the coil.
DO NOT vent refrigerant to the outdoors.
Unitary Products Group
5
035-13606-003 Rev. A (202)
ELECTRICAL WIRING
REFRIGERANT VALVE OPERATION
To prevent electrical shock, open remote discon-
nect so electrical supply to outdoor unit is shut
off. Contactor does not open both sides of the
208/230 volt electrical circuit.
All outdoor units are shipped with the service
valves in the closed position. After installation of
the refrigerant and proper evacuation, make sure
that all valves are in the open position and that
the caps are securely tightened before turning
ON the electrical power to the outdoor unit.
POWER SUPPLY
All wiring must comply with N.E.C. and local codes. See rat-
ing plate and product data sheet for volts, frequency, phase,
maximum fuse size and minimum branch circuit ampacity.
All models in this series have brass service valves. These
valves are not back seating. Opening or closing valve does
not close service port. Service ports have Schrader valves for
gauge connections. Use back-up wrench on valve body when
removing cap to open or close the valve. To open, insert hex
wrench into stem and back out counter clockwise until stem
Refer to the wiring diagram inside the unit control box cover
before connecting to power supply.
1. The 208/230 volt single phase line voltage service wiring
for the outdoor unit must include a disconnect switch
located within sight of the outdoor unit.
just touches retaining ring.
2. Use the correct size fuse or circuit breaker as listed on
the unit rating plate and data sheet. If using nonmetallic-
sheathed cable (NM or NM-B) ampacities shall be that of
60° C conductors per N.E.C 336-26.
If the valve stem is backed out beyond the retain-
ing ring, system pressure could force the stem
out of the valve body and possibly cause per-
sonal injury. In the event that the retaining ring is
missing do not attempt to open the valve.
3. Wiring connections. - Two are provided in the control
box:
a. One for low voltage wiring.
b. One entrance for high voltage L1 and L2.
Some units may have factory installed 1-1/8" ball valves. To
open the valve, remove the brass valve stem cap, located on
the side of the valve, with an adjustable wrench. Next, turn
the valve stem 1/4 turn CCW (away from unit).
The adjustable High Voltage Conduit Plate is factory installed
for 1/2" conduit connections. For 3/4" conduit, remove the
screw holding the plate in place and adjust the location of the
holes. For 1" conduit, remove the conduit plate and discard.
Re-install screw to maintain the integrity of the unit structure,
regardless of the conduit being used. See Figures 9, 10 & 11.
All caps must be replaced to prevent leaks.
Replace valve cap finger tight, then tighten an additional 1/6
of a turn with a wrench, using a back-up wrench on the valve
body.
4. Power connection to the unit is facilitated by screw termi-
nals, L1 and L2 on the outdoor unit contactor. See Fig-
ures 9, 10 & 11.
OIL TRAPPING
5. Ground the outdoor unit using the ground lug provided.
Unless the outdoor unit is grounded through proper wir-
ing to the service entrance ground, a suitable separate
ground should be provided at the outdoor unit.
When the outdoor unit is above the indoor coil oil trapping is
necessary. Please refer to APPLICATION DATA, 690.01-
AD1V (1296) and worksheet 690.01-AD1.1V (791) “General
Piping Recommendations and Refrigerant Line length".
6. Use copper conductors only.
Check the system for correct charge after all components of
the system have been installed, connected and wired cor-
rectly.
Connect service gauges to low pressure port and discharge
service ports.
Casing or cabinet must be permanently grounded
in accordance with National Electric Code or
other applicable local codes.
Allow unit to operate until system pressures and tempera-
tures have stabilized, making sure that the pressure and tem-
perature align with unit service data. If not, check system
charge and adjust if necessary.
6
Unitary Products Group
035-13606-003 Rev. A (202)
LOW VOLTAGE
1. Route the low voltage cable through the fingered bush-
ing in the low voltage junction box. See Figures 9, 10 &
11.
Control wiring may vary depending upon the type of thermo-
stat and furnace being connected.
2. Using wire nuts, connect the low voltage wiring within the
low voltage box.
Low voltage wiring diagrams can be found with the furnace or
air conditioning blower package installation instructions.
3. A minimum of 19 AWG wire must be used in connecting
the low voltage control wiring between the outdoor unit,
air handler thermostat, and outdoor thermostat. For
longer low voltage control wiring lengths, consult the
N.E.C.
Pig-tail connector wires (2 blue or 1 blue, 1 brown) are pro-
vided from the low voltage pull-in coil on the contactor to a
section of the control box (See Figure 12). A “Fingered” bush-
ing is provided in the low voltage knockout hole. If 1/2" con-
duit is used for the low voltage wiring, the bushing is to be
removed.
Connect thermostat and control package wiring as shown in
Figure 12 and per the instructions packed with those pieces.
CONTACTOR
START RELAY
(Not on all Models)
DUAL
RUN/FAN
CAPACITOR
FAN
MOTOR
PLUG
START
CAPACITOR
(Not on all Models)
LOW
VOLTAGE
BOX
“FINGERED”
BUSHING
GROUND
LUG
REVERSIBLE HIGH VOLTAGE
CONDUIT PLATE
FIGURE 3 : Typical Condensing Unit Control Box (Start Components Shown)
START RELAY
CONTACTOR
DUAL
RUN/FAN
CAPACITOR
LOW
VOLTAGE
BOX
FAN
MOTOR
PLUG
“FINGERED”
BUSHING
ADJUSTABLE HIGH VOLTAGE
CONDUIT PLATE
GROUND LUG
FIGURE 4 : Typical Condensing Unit Control Box (Start Components Shown)
Unitary Products Group
7
035-13606-003 Rev. A (202)
E
ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES
POWER WIRING
208/230-1-60
230 - 1 - 50
POWER WIRING
CONTROL WIRING
FACTORY WIRING
24 VOLT CONTROL WIRING
MINIMUM 18 GA. WIRE
(NEC CLASS 2)
FURNACE OR AIR HANDLER TERMINAL BLOCK
Y R G W
C
*
TERMINAL W IS ONLY
REQUIRED ON SYSTEMS
WITH HEAT.
CONTACTOR
TERMINALS
*
GND.
LUG
COIL
Y
R
G
W
ROOM THERMOSTAT
CONDENSING UNIT
ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY.
FIGURE 5 : TYPICAL FIELD WIRING
SYSTEM CHARGE
The factory charge in the outdoor unit includes enough
charge for the unit and a most sold matched evaporator.
Some indoor coil matches may require some additional
charge. See Tabular Data sheet provided in unit literature
packet.
Refrigerant charging should only be carried out
by a qualified air conditioning contractor.
MEASUREMENT METHOD
Sweat connect units also include sufficient charge for 15 feet
of lines. Pre-charged line lengths are factory charged with the
correct amount of refrigerant required. Table 2 lists the refrig-
erant line charges.
If a calibrated charging cylinder or accurate weighing device
is available, add refrigerant accordingly.
The “TOTAL SYSTEM CHARGE” must be permanently
stamped on the unit data plate.
Compressor damage will occur if system is
improperly charged. On new system installations
charge system per R-22 charge information label
and follow guidelines in this instruction.
Total system charge is determined as follows:
1. Determine outdoor unit charge from tabular data sheet.
2. Determine indoor coil adjustment from tabular data
sheet.
Check flare caps on service ports to be sure they
are leak tight. DO NOT OVER TIGHTEN
(between 40 and 60 inch - lbs. maximum).
3. Calculate the line charge using Table 2 factors. Calculate
over 15 feet of sweat lines for sweat connect units.
SUPERHEAT CHARGING METHOD
NOTE: For sweat connect lines, the line charge over 15 feet
should be included on the data plate and must be added to
the system.
NOTE: Use this method only during system maintenace
and repair.
4. Total system charge = item 1 + item 2 + item 3.
1. Operate system until temperatures and pressures stabi-
lize (minimum of 10 minutes).
5. Permanently stamp the unit data plate with the total
amount of refrigerant in the system.
2. Measure and record indoor wet bulb (WB) temperature
using a sling psychrometer and the outdoor dry bulb
(DB) temperature using a thermometer.
Use one of the following charging methods whenever addi-
tional refrigerant is required for the system charge.
8
Unitary Products Group
035-13606-003 Rev. A (202)
Table 3: SUPERHEAT VALUE
OUTDOOR DB°F
INDOOR WB
°F1
55
9
60
7
65
70
75
80
85
90
95 100 105 110 115
50
52
54
56
58
60
62
64
66
68
70
72
74
76
12
14
17
20
23
26
29
32
35
10
12
15
18
21
24
27
31
33
35
6
10
14
16
19
22
24
30
30
33
35
7
10
13
16
19
21
24
27
30
33
6
9
5
12
16
18
23
24
28
30
34
8
6
12
15
18
21
25
28
31
35
8
5
11
15
19
22
26
30
33
9
6
11
16
20
24
27
31
9
6
14
18
20
25
29
12
15
20
23
27
9
6
13
17
22
26
11
15
20
25
8
14
18
23
1.
Evaporator Entering Air °F
Table 4: TEMPERATURE AND PRESSURE
SUCTION
SUCTION SERVICE VALVE SUPERHEAT
PRESSURE
01
PSIG
(Service Port)
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
61.5
64.2
67.1
70.0
73.0
76.0
79.2
82.4
35
37
39
41
43
45
47
49
37
39
41
43
45
47
49
51
39
41
43
45
47
49
51
53
41
43
45
47
49
51
53
55
43
45
47
49
51
53
55
57
45
47
49
51
53
55
57
59
47
49
51
53
55
57
59
61
49
51
53
55
57
59
61
63
51
53
55
57
59
61
63
65
53
55
57
59
61
63
65
67
55
57
59
61
63
65
67
69
57
59
61
63
63
67
69
71
59
61
63
65
67
69
71
73
61
63
65
67
69
71
73
75
63
65
67
69
71
73
75
77
65
67
69
71
73
75
77
79
67
69
71
73
75
77
79
81
69
71
73
75
77
79
81
83
1.
Saturation Temperature
Table 5: R-22 SATURATION PROPERTIES
TEMP.
°F
PRESSURE
PSIG
TEMP.
°F
PRESSURE
PSIG
TEMP.
PRESSURE
PSIG
TEMP.
°F
PRESSURE
PSIG
TEMP.
°F
PRESSURE
PSIG
°F
75
76
77
78
79
45
46
47
48
49
76.02
77.58
79.17
80.77
82.39
60
61
62
63
64
101.62
103.49
105.39
107.32
109.26
132.22
134.45
136.71
138.99
141.30
90
91
92
93
94
168.40
171.02
173.67
176.35
179.06
105
106
107
108
109
210.75
213.81
216.90
220.02
223.17
50
51
52
53
54
84.03
85.69
87.38
89.08
90.81
65
66
67
68
69
111.23
113.22
115.24
117.28
119.34
80
81
82
83
84
143.63
145.99
148.37
150.78
153.22
95
96
97
98
99
181.80
184,56
187.36
190.18
193.03
110
111
112
113
114
226.35
229.56
232.80
236.08
239.38
55
56
57
58
59
92.56
94.32
96.11
97.93
99.76
70
71
72
73
74
121.43
123.54
125.67
127.83
130.01
85
86
87
88
89
155.68
158.17
160.69
163.23
165.80
100
101
102
103
104
195.91
198.82
201.76
204.72
207.72
115
116
117
118
119
242.72
246.10
249.50
252.94
256.41
Unitary Products Group
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035-13606-003 Rev. A (202)
3. Measure and record the suction pressure at the suction
service valve port.
6. Is air filter installed and clean?
7. Is the blower motor speed set correctly?
4. Using Table 4, note the superheat value corresponding
to the intersection of the indoor wet bulb and the outdoor
dry bulb.
IMPORTANT - Installer should place unit data sheet and
installation instructions in customer packet and give to home
owner after installation is complete.
5. With the superheat value obtained in step 4 and the suc-
tion pressure value from step 3, find the intersection of
the values in Table 5. This is the required suction tube
temperature at the suction service valve.
SYSTEM OPERATION CHECKOUT
1. With thermostat set to the OFF position, close discon-
nect switch or switches to complete circuits to condens-
ing unit and furnace. Set thermostat to call for cooling.
6. To bring the tube temperature in line with the required
value from Table 5, add refrigerant to the service port to
cause the tube temperature to fall and reclaim refrigerant
to cause the temperature to rise.
2. After the system starts, check the voltage and amperage
at the condensing unit contactor.
3. If voltage is not within 10% of rated voltage, or amperage
greatly exceeds nameplate amperage, shut down the
system and contact the local power company for correc-
tions; otherwise unsatisfactory performance may result.
CHECKOUT PROCEDURE
Use the following list to see that nothing was over looked:
1. Have all braze joints on refrigerant lines been leak
checked? (Sweat Fit Units)
4. With the system in operation, check the condensing unit
for unusual noise and undue vibration.
2. Line set fittings leak checked? (Quick Connect Units)
3. Have base valves been opened? (Sweat Fit Units only)
5. Allow the system to operate until it is balanced or stabi-
lized (approximately 30 minutes), before making further
checks.
4. Have all refrigerant lines been secured and isolated
properly?
6. Remove manifold gages hoses, and install cap on
Schrader valves.
5. Is the indoor coil drain hooked up and draining freely?
Pour water in drain pan.
10
Unitary Products Group
035-13606-003 Rev. A (202)
SERVICE RECORDS
Unitary Products Group
11
Subject to change without notice. Printed in U.S.A.
035-13606-003 Rev. A (202)
Copyright © by York International Corp. 2002. All rights reserved.
Supersedes: 035-13606-002, 550.46-N1Y (199)
Unitary
Products
Group
5005
York
Drive
Norman
OK
73069
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