Cadet Patio Heater CEH 003M User Manual

The CEH Industrial Unit Heater  
OWNER’S GUIDE  
Features & Benefits  
• Commercial grade high temperature  
manual reset  
• High mass, tubular element for longer life  
• Fan delay eliminates cold draft on startup and  
disperses residual heat on shutdown  
• Rugged die formed construction for durability  
• Wire single or three phase to suit the application  
• Vertical or horizontal delivery  
• 5 Year Warranty  
Models:  
CEH-003RB  
CEH-003R  
CEH-003SB  
CEH-005M  
CEH-005MB  
CEH-005P  
CEH-005PB  
CEH-005R  
CEH-005SB  
CEH-003M  
CEH-003MB  
CEH-003P  
CEH-003PB  
Tools Required:  
Appropriate Fasteners  
Crescent Wrench  
Phillips Screwdriver  
Straight Screwdriver  
Strain Relief Connector  
Wire Strippers  
• Recommended for elevations under 7500 feet  
IMPORTANT INSTRUCTIONS  
WARNING  
7.  
WARNING  
Turn the electrical power off at the electrical  
panel board (circuit breaker or fuse box) and lock  
or tag the panel board door to prevent someone from  
turning on power while you are working on the  
heater. Failure to do so could result in serious  
electrical shock, burns, or possible death.  
Overheating or fire may occur. DO NOT place the heater  
behind doors.  
8.  
WARNING  
Fire or explosion may occur. DO NOT place heater in any  
area where combustible vapors, gases, liquids, or excessive  
lint or dust are present.  
1. Read all instructions before using this heater.  
9.  
WARNING  
Burn Hazard. This heater is hot when in use. To avoid burns,  
do not let bare skin touch hot surfaces. Use extreme caution  
when any heater is used by or near children or invalids.  
2. Read all information labels. Verify that the electrical supply  
wires are the same voltage as the heater.  
3. All electrical work and materials must comply with the  
National Electric Code (NEC), the Occupational Safety and  
Health Act (OSHA), and all state and local codes.  
10.  
11.  
WARNING  
Risk of Electrical Shock. Connect grounding lead to ground-  
ing terminal provided. Keep all foreign objects out of  
heater.  
4. If you need to install a new circuit or need additional wiring  
information, consult a qualified electrician.  
WARNING  
Risk of Fire. Do not block heater. Heater must be kept clear  
of all obstructions: maintain a 3 feet minimum clearance in  
front, 12 inches on each side, and 6 inches from the rear.  
Heater must be kept clean of lint, dirt and debris (See  
Maintenance Instructions)  
5. Protect electrical supply from kinks, sharp objects, oil,  
grease, hot surfaces or chemicals.  
6. Do not install heater below an electrical convenience  
receptacle.  
SAVE THESE INSTRUCTIONS  
TEL: 360-693-2505 Fax: 360-694-8668 P.O. Box 1675 Vancouver, WA 98668-1675  
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Installation Instructions  
Mounting the CEH Unit Heater  
Vertical Delivery  
In buildings with high ceilings or bays, vertical  
delivery unit heaters are recommended to produce  
comfort in central areas. They are best used when  
the perimeter heat loss is adequately controlled. In  
combination with horizontally discharged units,  
they aid in providing good air mixture (See Figure 4).  
CAUTION: THE CEILING OR WALL  
MOUNTING STRUCTURE AND ANCHORING  
PROVISIONS MUST BE OF SUFFICIENT  
STRENGTH TO SUPPORT THE COMBINED  
WEIGHT OF THE HEATER AND MOUNTING  
BRACKETS  
Vertical discharging units are mounted high above  
machinery, assembly lines, etc.  
WARNING!  
Risk of Electrical  
Shock. Turn off all  
power at the electri-  
cal panel board sup-  
plying power to the  
heater before doing  
any electrical  
In an application where only vertical discharging  
units will be used, the air streams must overlap to  
blanket outside walls and provide good heat distri-  
bution (See Figure 5).  
Vertical Discharge  
(See Figure 6 for minimum clearances)  
1. Install four 5/16-18 threaded rods into the  
threaded holes in the back of the heater and  
secure in place using lock (jam) nuts (Figure 7).  
2. Attach the four mounting rods to ceiling or over-  
head structure and anchor securely.  
wiring.  
NOTE: When mounting for vertical discharge,  
position unit so that access door opens away  
from nearest wall. This permits maximum  
access to wiring compartment (Figures 2 & 6).  
Figure 5.  
Figure 4.  
G
E
H
F
5/16-18  
BACK  
Threaded  
Mounting  
Holes  
MOUNTING ROD DIMENSIONS  
UNIT KW ROD THREAD  
E
F
G
H
Figure 6. Ceiling mount. Vertical mounting clearances.  
3.3, 5.0 5/16-18 6" (15.2 CM) 9.63" (24.5 CM) 4.04" (10.3 CM) 2.10" (5.3 CM)  
Figure 7. Vertical discharge rod spacing  
General Safety Information  
The ceiling or wall on which the heater is to be  
mounted must be of adequate strength to support  
the heater. Plaster or suspended ceilings will not  
support this type of heater. For greater stability, we  
recommend the use of threaded rods.  
Do not mount the heater where volatile liquids or  
gases will be present or where it will be exposed to  
rain or mist. All combustible materials should be  
kept at least 3 feet away from front of the heater.  
In an area where the air temperature will be main-  
tained at less than 68˚F, the heater should be mount-  
ed in a position that will not blow directly on people  
working in the area.  
Operation and Maintenance  
How to operate your heater  
Turn your built-in or wall thermostat to the desired  
setting. The heater will run for approximately  
twenty seconds before the fan comes on. The  
heater will then run until the thermostat setting is  
reached. Fan will continue to run with elements  
shut off for approximately seventy seconds and  
then will shut off. This cycle will continue as need-  
ed based on thermostat setting. Do not use break-  
er panel or fuse box to control heater. Be sure  
power to heater is constant all the time.  
WARNING!  
Overheating or fire  
may occur. DO NOT  
place the heater  
behind doors.  
A minimum clearance for each heater (both hori-  
zontal and vertical mount) is listed in Figure 6.  
Please follow these recommendations when  
mounting to avoid potential problems with the func-  
tion and safety of the heater.  
Maintenance  
1. Shut off circuit breaker to heater.  
2. Remove front diffuser grill or 3 of the center  
louvers in front of fan area.  
3. Using a compressor, blow air through the outer  
cabinet louvers and finned element areas.  
(Do not touch sharp surfaces on elements).  
While holding fan blade (to avoid damage or  
bending) carefully blow inside the fan motor  
area.  
4. Carefully wipe off the fan blade without  
damaging or bending it.  
5. Reinstall front diffuser or air vanes.  
6. Restore power to heater.  
3
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Wiring Instructions  
CAUTION: TO AVOID ELECTRICAL SHOCK, BE SURE ELECTRICITY IS TURNED OFF AT ELECTRICAL PANEL BOARD BEFORE WIRING.  
ALL WIRING MUST BE DONE IN ACCORDANCE WITH LOCAL CODES AND THE HEATER MUST BE GROUNDED AS A PRECAUTION AGAINST  
POSSIBLE ELECTRIC SHOCK. IN ABSENCE OF LOCAL CODES, FIELD WIRING TO THE UNIT SHALL COMPLY WITH CURRENT PROVI-  
SIONS OF THE AMERICAN NATIONAL ELECTRICAL CODE OR YOUR NATIONAL ELECTRICAL CODE, AS APPLICABLE.  
NOTE: Connect heater only to a line with the voltage and frequency specified on the nameplate.  
Branch Circuit Connections (Power)  
1. Wiring compartment access door is hinged. To open, turn single screw on the side 1/4  
turn (see Figure 8). Do not try to remove screw.  
2. A knockout is provided in the back of the unit for field wiring (See Figure 8). This is a  
BACK  
multiple diameter knockout. Use the diameter that fits the required conduit size.  
3. A ground terminal is provided near the junction block for field wiring. The ground  
should be connected before any other connections.  
Hinge  
4. The junction block is equipped with box terminals sized to accept the correct power  
supply wire. Wire rated at 600 volts and 75˚C is satisfactory for branch circuit  
connections. Either copper or aluminum conductors may be used. NOTE: the center  
box terminal on the three pole junction block is used only for 3-phase operation.  
5. Each heater has a wiring diagram on the inside of the access door. Consult this  
diagram before making any field connections.  
Control  
Wiring  
Power  
Wiring  
Access Door  
Knockout  
Knockout  
Figure 8.  
Knockout locations  
1/4 Turn Captive Fastener  
CAUTION – READ THESE INSTRUCTIONS CAREFULLY WHEN USING ALUMINUM WIRING  
1. Carefully strip insulation from aluminum conductors and coat ends of conductors with suitable corrosion inhibitor ("Pentrox A"  
or equivalent).  
2. Wire brush aluminum surface, removing corrosion; re-coat with corrosion inhibitor.  
3. Connect aluminum wiring and tighten connection securely. CAUTION: Do not exceed pressure needed for making a typical copper  
connection.  
4. Coat entire connection with inhibitor.  
5. All connections using aluminum conductors should be periodically re-checked for tightness.  
6. NOTE: DO NOT JOIN ALUMINUM CONDUCTORS DIRECTLY TO COPPER.  
a. Disconnect the orange wire from the junction block terminal  
and connect it to the orange wire on the small terminal block and,  
b. Disconnect the red wire from the junction block and connect it  
to the terminal in the center of the block.  
DUAL RATED 240/208 VOLT MODELS: All 240 volt models may be  
operated at 208 volts with a corresponding reduction in output. When  
the heater is connected to a 208 volt power supply, disconnect the  
transformer lead from the terminal marked 240V and connect it to the  
terminal marked 208V. 277 volt units may only be used on single phase  
circuits. 480 volt units may only be used on three phase circuits.  
2. Models with 24 Volt Control (see Figures 11 & 12)  
a. Disconnect the orange wire from the junction block  
terminal and connect it to the orange wire on the contactor  
terminal and,  
3-Phase Connections  
b. Disconnect the red wire from the junction block and  
connect it to the terminal in the center of the block.  
Single or 3-phase power connections may be used on all 208 and  
240/208 volt, 3.3–5 KW models. These units come factory wired for  
single-phase power but may be wired for 3-phase power by recon-  
necting two wires. This is done as follows:  
1. Models with Line Voltage Control (See Figures 9 & 10)  
FRONT  
FRONT  
Terminal  
Terminal  
block  
block  
Factory wired for  
Factory wired for  
single phase  
power (line  
voltage control  
models).  
Orange  
Orange  
wire  
Orange  
Orange  
wire  
wire  
wire  
single phase  
power (24 volt  
Heater  
Heater  
elements  
elements  
control models).  
Red  
wire  
Contactor  
Red  
wire  
Junction block  
Junction block  
for field wiring  
for field wiring  
Figure 9.  
Figure 11.  
BACK  
BACK  
FRONT  
Terminal  
FRONT  
Terminal  
block  
block  
Factory wired for  
Orange  
Orange  
Factory wired for  
3-phase power  
(24 volt control  
models).  
Orange  
Orange  
wire  
wire  
wire  
wire  
3-phase power  
(line voltage  
Heater  
Heater  
elements  
control models).  
elements  
Red  
wire  
Contactor  
Red  
wire  
Junction block  
Junction block  
for field wiring  
for field wiring  
Figure 10.  
Figure 12.  
BACK  
BACK  
NOTE: Supply wires must feed direct from breaker to junction block. Thermostat wires connect to terminal board. See  
wiring diagrams for your specific model.  
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Wiring Instructions  
Control Voltage Wiring  
1. A knockout is also provided in the back of the unit for control wiring. This knockout is sized for 1/2" conduit. (see Figure 13)  
2. Thermostat wire shall be as follows:  
a. Line voltage control models: Use NEC Class 1, 600V, 90˚C, AWG #10 wire with copper conductor or same gauge wire as  
supply line.  
b. 24 volt control models (B package): Use NEC Class 1, 600V, 90˚C, AWG #18 wire with copper conductor.  
Use H1 + P1, terminals for connection (Do not use jumpers).  
3. Install wall thermostats in accordance with the installation instructions supplied with the thermostat.  
NOTE: Do not locate thermostat in an area exposed to unusual temperature conditions or poor air circulation.  
NOTE: a.Line voltage control models of 3.3KW and 5.0KW ratings that are 208 and 240 volt, wired for 3-phase operation, should not  
be used with a wall thermostat. This applies to the following models:  
CEH-003-M  
CEH-003-P  
CEH-005-M  
CEH-005-P  
These models come factory wired for single phase. When these models are converted in the field to 3-phase, DO NOT USE A WALL MOUNTED  
THERMOSTAT. Thermostat control for 3-phase hookup should be provided by a CEK-TB2 (built-in thermostat).  
b.When using model number CEH-005-M wired single phase (factory wired) use the following thermostats:  
Wall Mount – C611-25,  
Built-In – CEK-TB2 (two-stage thermostat)  
4. Connect the thermostat wires to terminals H1 and P1 as shown in Figure 13. On 208 and 240 volt, single-phase  
models with line voltage control, (Not B package models) install jumpers as shown in Figure 13.  
BACK  
FRONT  
Figure 14.  
Manual reset limit  
A manual reset thermal limit is  
factory installed on all models.  
The limit is located on the front of  
the heater. The manual reset limit  
will not reset until the button is  
pushed and heater has cooled  
down. (208/240V line voltage con-  
trol heaters use two manual reset  
limits)  
Heater Elements  
Line Voltage  
FRONT  
Control Models  
(Singe Phase):  
Install jumpers  
H1 H2  
F2  
To Thermostat  
between H1 and H2  
and P1 and P2 on  
208/240V units  
F1  
Manual Reset Limit  
P1 P2  
(note dashed lines).  
Connect Thermostat  
Wires To P1 and H1  
Control Terminal Board  
Figure 13. Thermostat wiring connections  
Wiring Diagrams  
5
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Wiring Diagrams  
6
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Wiring Diagrams  
Parts List  
1. 402023  
402045  
ELEMENT, CEH-003-M  
ELEMENT, CEH-003MB  
ELEMENT, CEH-003-P  
ELEMENT, CEH-003-PB  
ELEMENT, CEH-003-R  
ELEMENT, CEH-003RB  
ELEMENT, CEH-003-SB  
ELEMENT, CEH-005-M  
ELEMENT, CEH-005-P  
ELEMENT, CEH-005-PB  
ELEMENT, CEH-005-R  
ELEMENT, CEH-005-SB  
FAN BLADE, CEH-003 & CEH-005  
FAN MOTOR, CEH-003-M, P & CEH-005-M, P  
FAN MOTOR, CEH-003-R & CEH-005-R  
FAN MOTOR, CEH-003-S & CEH-005-S  
LIMIT, CEH-003, CEH-005, 208 & 240 VOLT  
WITH LINE VOLTAGE CONTROL  
LIMIT, CEH-005M, P  
10  
402024  
402046  
402025  
402049  
402026  
402027  
402028  
402048  
11  
1
402029  
402030  
2. 001601  
3. 051408  
051409  
051414  
4. 050323  
12  
2
3
4
050326  
050327  
LIMIT, CEH-003-PB, MB, R & SB, CEH-005-PB,  
MB, R & SB  
14  
5. 052403  
6. 052501  
052502  
7. 052402  
8. 052401  
9. 052601  
052603  
TERMINAL BOARD  
9
CONTACTOR, ALL UNITS WITH AN “S” SUFFIX  
CONTACTOR, MB, PB (OPTIONAL 24 VOLT CONTROL)  
JUNCTION BLOCK, CEH-003, CEH-005  
TERMINAL BLOCK  
TRANSFORMER, 240/208 VOLT  
TRANSFORMER, 480 VOLT  
13  
10. 09670  
11. 09660  
12. 410102  
13. 053304  
050520  
14. 09610  
09615  
CEK-WM, WALL MOUNTING ARM KIT (OPTIONAL)  
CEK-M1, 3.3-5.5 KW HAT BRACKET (OPTIONAL)  
AIR DIFFUSER, 3.3 - 5.0 KW  
FAN DELAY RELAY - 24 VOLT  
FAN DELAY RELAY - 240 VOLT  
CEK-TB1, SINGLE POLE INTEGRAL THERMOSTAT (OPTIONAL)  
CEK-TB2, TWO STAGE INTEGRAL THERMOSTAT (OPTIONAL)  
7
6
5
8
IMPORTANT: When ordering replacement parts, specify the heater "Model Number" and "Product Date Code" shown on unit rat-  
ing plate or label found inside access door. Select appropriate "Part No." from this sheet for each part requested. Consult your local  
distributor or call Cadet at 360.693.2505. Specifications or designs are subject to change or discontinuance without notice or with-  
out incurring obligation.  
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Troubleshooting Chart  
CONSULT LOCAL ELECTRICAL CODES TO DETERMINE WHAT WORK MUST BE PERFORMED BY QUALIFIED ELECTRICAL SERVICE PERSONNEL  
Symptom  
Heater does not operate.  
Problem  
1. Voltage not correct for application.  
2. In line thermostat used.  
Solution  
1. Check voltage with voltmeter and/or consult an electrician.  
2. Thermostat wires to terminal board; supply wires to junction block (see  
wiring diagram).  
3. Remove obstruction. Push manual reset in front.  
4. Turn knob past sound of click.  
5. Turn circuit breaker on.  
6. Replace manual reset.  
1. Replace the delay switch.  
2. Replace motor and/or check wire connection.  
3. Adjust blade as needed.  
1. Allow heater to cool, then push reset button.  
2. Check with ohmmeter and replace if needed.  
3. Check and correct loose wire.  
1. Close doors or windows. (See “Operation & Maintenance” section for  
instructions).  
2. Replace thermostat.  
3. Heater is or has been blocked.  
4. Thermostat set too low.  
5. Circuit breaker is off.  
6. Defective manual reset.  
1. Defective time delay switch.  
2. Bad motor or wire connection.  
3. Fan hitting or rubbing.  
1. Manual reset limit tripped.  
2. Defective heater elements.  
3. Wire loose from elements.  
1. Heat loss from area is greater than  
heater capacity.  
Element heats, fan does not  
operate.  
Fan operates, but does not dis-  
charge warm air.  
Heater does not shut off.  
Heater discharges smoke.  
Fan blades do not turn.  
2. Defective thermostat.  
1. Dust, dirt and lint accumulated  
inside the heater.  
1. Clean heater. (See “Operation & Maintenance” section for instruction).  
2. Remove obstruction.  
2. Jammed fan blades.  
1. Remove obstruction. Once heater has cooled, push reset button.  
2. Remove obstruction.  
3. Replace fan motor.  
1. Check all clearance requirements.  
2. Discontinue use of breaker to control heater, or replace time delay switch.  
3. Clean heater. (See "Operation and Maintenance" section for instructions)  
1. Manual reset limit tripped.  
2. Jammed fan blades.  
3. Defective motor.  
Manual reset limit trips  
repeatedly.  
1. Overheating.  
2. Overheating at shutdown.  
3. Overheating from excessive dust,  
dirt or lint particles.  
4. Location elevation exceeds recommended 7500 feet.  
5. Power to heater needs to be constant.  
4. Overheating due to location eleva-  
tion.  
5. Power interruptions.  
Warranty  
Warranty Information  
Maintenance: For safer operation and to prolong the life of the heater, it is necessary to follow the maintenance instructions included with each  
heater. Failure to properly maintain the heater will result in the warranty being voided. All warranties offered to original consumer only. Warranty  
instructions included with each heater.  
All Cadet Products  
LIMITED ONE-YEAR WARRANTY: LIMITED ONE-YEAR WARRANTY: Cadet Manufacturing Co. will repair or replace any Cadet product, including ther-  
mostats, found to be defective or malfunctioning from first date of purchase through the first year.  
Extended Product Warranties  
Model CEH  
LIMITED FIVE-YEAR WARRANTY: Cadet Manufacturing Co. will repair or replace any Cadet Unit Heater (CEH) element or motor found to be defective  
or malfunctioning from first date of purchase through the fifth year.  
THESE WARRANTIES DO NOT APPLY:  
1. To conditions resulting from improper installation or incorrect supply voltage;  
2. To conditions resulting from improper maintenance, misuse, abuse, accident, or alteration;  
3. To service calls, or any warranty labor not performed at the Cadet Manufacturing facility;  
4. If the date of manufacture cannot be determined;  
5. To freight damaged products.  
CADET SHALL NOT BE LIABLE FOR DAMAGES SUCH AS PROPERTY DAMAGE AND/OR INCIDENTAL EXPENSES RESULTING FROM BREACH OF THESE  
WRITTEN WARRANTIES OR ANY IMPLIED WARRANTY.  
These warranties give you specific legal rights, and you may also have other rights which vary from state to state. Cadet neither assumes, nor  
authorizes anyone to assume for it, any other obligation or liability in connection with these electric heaters or any part of such heaters.  
If the product should become defective during the warranty period, contact Cadet Manufacturing Co. at 360-693-2505 for instructions on how to have  
the repair or replacement processed. Products returned without authorization will be refused.  
Parts and Service  
Contact Cadet for information on parts or service.  
©2006 Cadet Manufacturing Co.  
Printed in U.S.A. Rev. 11/06 #720019  
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