Electric - Heat Wagon

342 N. Co. Rd. 400 East
Valparaiso, IN 46383
219-464-8818 • Fax 219-462-7985
www.heatwagon.com
Installation and Maintenance Manual
Please retain this manual for future reference.
Electric
Construction
Heaters
Revision 9-15
For your safety: Do not use this heater in
a space where gasoline or other liquids
having flammable vapors are stored.
IMPORTANT INSTRUCTIONS
READ ALL INSTRUCTIONS BEFORE USING THIS HEATER
1. This heater is hot when in use. To avoid burns, do not let bare skin touch hot surfaces. Use
handle when moving this heater. Keep combustible materials at least 6 feet (2 meter) from the
front of the heater and keep them away from sides and rear
2. Extreme caution is necessary when the heater is used near children or invalids and whenever
the heater is left unattended
3. Always unplug the heater when not in use
4. Do not operate any heater with a damaged cord or plug or after the heater malfunctions, has
been dropped or damaged in any manner. Return heater to authorized service facility for
examination, electrical or mechanical adjustment or repair
5. Do not expose to rain, water spray or dripping water
6. This heater is not intended for use in bathrooms, laundry areas and similar indoor locations.
Never locate the heater where it may fall into a bathtub or other liquid container
7. Do not run cord under carpeting. Do not cover cord with throw rugs, runners, or the like.
Arrange cord away from traffic area and where it will not be tripped over
8. TO DISCONNECT HEATER, reduce ambient thermostat to zero. Fan will continue to run
(P1800,4000,6000) until unit cools and shuts down automatically, turn switches off,
disconnect power. For P600, P900 let fan run one minute then after cooldown, turn switch off,
disconnect power.
9. Connect to properly grounded outlets only
10. Do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may
cause an electric shock or fire, or damage the heater
11. To prevent a possible fire, do not block air intakes or exhaust in any manner. Do not use on
soft surfaces, where openings may become blocked
12. A heater has hot and arcing or sparking parts inside. Do not use in areas where gasoline, paint
or flammable liquids are used or stored
13. Do not point to flammable materials
14. Use heater only as described in this manual. Any other use not recommended by the
manufacturer may cause fire, electric shock or injury to persons
15. Always plug heaters directly into a wall outlet/receptacle. Never use with an extension cord or
relocatable power tap (outlet/power strip)
16. SAVE THESE INSTRUCTIONS
Installation and Maintenance Manual
Models P600, P900, P1800-1,
P1800-3, P1800D, P4000 and P6000
Construction Heaters
Table of Contents:
Page
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Principal of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Set Up and Operation Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Maintenance and Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Parts Breakdowns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 -16
Electrical Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10, 12, 14, 17-19
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
WARRANTY
All new Heat Wagon and Sure Flame heaters and fans are guaranteed against defective materials and workmanship for one (1) year from invoice date.
Warranty repairs may be made only by an authorized, trained and certified Heat Wagon dealer. Warranty
repairs by other entities will not be considered. Warranty claims must include model number and serial
number.
LIMITATIONS
Evidence of improper electric power, misapplication or evidence of abuse may be cause for rejection of
warranty claims.
Travel time, mileage and shipping charges will not be allowed. Minor adjustments of heaters are dealers’
responsibility. Defective parts must be tagged and held for possible return to the factory for 60 days from
date of repair. The factory will provide a return goods authorization, (RGA) for defective parts to be
returned.
No warranty will be allowed for parts not purchased from Heat Wagon.
Heater is not intended for use in pest remediation.
342 N. Co. Rd. 400 East • Valparaiso, IN 46383
219-464-8818 • 888-432-8924 • Fax 800-255-7985
www.heatwagon.com
3
N/A
100ºF
53 dB(A) 1m
Yes
20"L x 12"W x 17"H
Ducting (Max)
Temp Rise
dB Noise
UL LIsted
Dimensions
32.9 lbs
32 to 100°F
Ambient Thermostat
Weight
250 CFM
(425 Cu. m/hr)
Air Flow
25
25
N/A
N/A
Amp Draw (Max)
(First Stage)
(Second Stage)
(Third Stage)
240V 60Hz 1Ø
Electrical Rating
208
6,000
N/A
N/A
N/A
Watts (Max)
(First Stage)
(Second Stage)
(Third Stage)
Min. Voltage at Heater
20,500
20,500
N/A
N/A
Heat Output (Max BTU's)
(First Stage)
(Second Stage)
(Third Stage)
P600
23"L x 12"W x 18"H
Yes
55 dB(A) 1m
100ºF
N/A
48 lbs
32 to 100°F
350 CFM
(600 Cu. m/hr)
38.0
38.0
N/A
N/A
208
240V 60Hz 1Ø
9,000
9,000
N/A
N/A
30,700
30,700
N/A
N/A
P900
30"L x 14"W x 20"H
Yes
58 dB(A) 1m
100ºF
N/A
62 lbs
32 to 100°F
590 CFM
(1,000 Cu. m/hr)
75
50
75
N/A
208
240V 60Hz 1Ø
18,000
12,000
18,000
N/A
65,000
41,000
65,000
N/A
P1800-1
30"L x 14"W x 20"H
Yes
58 dB(A) 1m
100ºF
N/A
62 lbs
32 to 100°F
590 CFM
(1,000 Cu. m/hr)
50
34
50
N/A
208
240V 60Hz 3Ø
18,000
12,000
18,000
N/A
65,000
41,000
65,000
N/A
P1800-3
SPECIFICATIONS
30"L x 14"W x 20"H
12" x 50' (straight)
Duct PN-WD1225
12”x25’ Long
62 lbs
32 to 100°F
940 CFM
50
34
50
N/A
208
240V 60Hz 3Ø
18,000
12,000
18,000
N/A
65,000
41,000
65,000
N/A
P1800D
46"L x 20"W x 25"H
Yes
82 dB(A) 1m
100ºF
14" x 50' (straight)
Duct PN-WD1425
14”x25’ Long
130 lbs
32 to 100°F
1,800 CFM
(3,000 Cu. m/hr)
50
20
40
50
440
480V 60Hz 3Ø
40,000
16,000
32,000
40,000
136,000
51,200
102,400
136,500
P4000
46"L x 20"W x 25"H
82 dB(A) 1m
100ºF
14" x 50' (straight)
Duct PN-WD1425
14”x25’ Long
142 lbs
32 to 100°F
1,800 CFM
(3,000 Cu. m/hr)
75
24
48
75
440
480V 60Hz 3Ø
60,000
24,000
48,000
60,000
204,700
81,864
163,728
204,606
P6000
PRINCIPAL OF OPERATION
P600, P900, P1800-1, P1800-3
2 PCS - P600
3 PCS - P900
9 PCS - P1800’s
PRINCIPAL OF OPERATION
P4000, P6000
STEEL
HANDLE
THERMOSTAT +
SWITCHES
POWER SELECTOR
CONTACTORS
RUGGED GALVANIZED
STEEL HOUSING
COOL
AIR
IN
AMBIENT THERMOSTAT SENSOR TUBE
OVERHEAT SENSORS
WARM
AIR
OUT
ELECTRIC
FAN
MOTOR
ALUMINUM
FAN BLADES
SOLID PLASTIC
WHEELS
FULLY SEALED, NONGLOWING STAINLESS
STEEL HEATING ELEMENT 15 PCS
4
OPERATION
REVIEW AND UNDERSTAND ALL WARNINGS IN THIS MANUAL. THEY ARE
ESSENTIAL FOR SAFE USE OF THE HEATER. FOLLOW ALL LOCAL CODES.
To start heating:
1. Place the heater on a stable, level surface. Make sure that no explosive or combustible fumes
or dust are present. See that the heater is not exposed to water spray, rain, or dripping water.
Minimum clearances from combustible materials:
Outlet: 6 feet, Sides: 1 foot, Top: 2 feet, Rear: 2 feet
Floor: combustible
2. Connect heater to proper power source. The P600 requires a 240V, 60Hz single phase 25 Amp
power source. The P900 requires a 240V, 60Hz single phase, 40 Amp power source. The
P1800-1 requires a 240V, 60 Hz single phase, 75 Amp power source. The P1800-3 requires a
240V, 60 Hz three phase, 50 Amp power source. The P4000 requires a 480V, 60 Hz three
phase, 50 Amp power source. The P6000 requires a 480V three phase, 75 Amp power source.
Also, ALL POWER SOURCES NEED TO BE EQUIPPED WITH A CIRCUIT BREAKER!
Note: When power is first applied to unit, the heater fan may blow
air out of heater INLET. If this condition occurs, (after first
removing power from cord) reverse the first two hot wires at heater
terminal inlet block. (3 Phase Models Only)
3. Set the remote thermostat to a temperature above the ambient room temperature by turning
the knob. NOTE: The heater will start only if the thermostat “calls for heat” meaning that it is
set to higher than prevailing ambient temperature.
4. Set the selector switch to the desired heating setting. For the P1800 series, the options are #1
for ventilation (fan only), #2 for low heat output of 12Kw (41,000 Btu’s), or #3 for high
output of 18Kw (65,000 Btu’s).
For the P4000, the switches are labeled S1 with a heat output of 16Kw (54,600 Btu’s), S1 and
S2 with a heat output of 32Kw (109,200 Btu’s) or S1, S2 and S3 with a heat output of 40Kw
(136,000 Btu’s).
For the P6000, the switches are labeled S1 with a heat output of 24Kw (81,900 Btu’s), S1 and
S2 with a heat output of 48Kw (163,800 Btu’s) or S1, S2 and S3 with a heat output of 60Kw
(204,700 Btu’s).
The heater will now operate automatically, controlled by the thermostat.
5
To Stop Heating: (P1800, P4000, P6000)
1. Turn all switches to “Off”.
2. Allow fan to run until unit stops automatically, controlled by unit cooldown thermostat (fan
switch). Heater may cycle more than once.
3. Unplug the power supply cable after the fan has stopped cooling down the heater completely.
To Stop Heating: (P600, P900)
1. Reduce ambient (room) thermostat to “Heat Off” position.
2. Allow fan to run for at least two minutes.
3. Flip switch to “Off” position.
4. Unplug heater.
NOTE: The heater is equipped with an overheat limit switch which may cause the heater to
stop. Check and remove the cause for overheating before re-starting.
Never disconnect supply plug to stop the heater while in operation!!
MAINTENANCE
Never service heater while it is plugged in, running or hot. Severe bodily injury or electric
shock may occur.
Only qualified persons are allowed to open heater for service.
1. Keep heater clean (ex. dry wall dust). Use pressurized air to blow fan blades clean.
NOTE: Use moderate pressure to avoid damage to fan blades.
2. Inspect heater before and after each use.
3. The bearings of the fan motor are permanently lubricated and sealed No additional
is needed.
lubrication
6
GENERAL ELECTRIC HEATER SIZING ISSUES
When running Heat Wagon electric heaters from a generator, it is extremely important to make sure
that the generator selected for your heater is not undersized. The single largest service issue with
Heat Wagon electric heaters is improper set up relating to inadequate voltage due to too small of an
electric source and/or too small of a power cord.
Generator Selection for Heat Wagon Electric Heaters
The chart below will help you when it comes to selecting the correct generator required for your
Heat Wagon heater:
Model
P1500
P600
P900
P1800-1
P1800-3
P1800D
P4000
P6000
Watts
1,500
6,000
9,000
18,000
18,000
18,000
40,000
60,000
Phase
BTU'S
Volts Amps CFM Recommendations
1 Phase
5,100
120
15
120
3KW
1 Phase
20,500
240
25
250
10KW
1 Phase
30,700
240
38
350
15KW
1 Phase
64,000/41,000
240
75
590
25KW
3 Phase
64,000/41,000
240
50
590
25KW
3 Phase
64,000/41,000
240
50
950
25KW
3 Phase 136,000/109,200/54,600 480
50 1,800
50KW
3 Phase 204,700/163,800/81,900 480
70 1,800
75KW
So, by reviewing the above chart, a P1800-1 would require a minimum 18,000 Watt (18KW),
240 volt single phase generator that can provide 75 amps of continuous power.
7
ELECTRICAL CORD SELECTION FOR HEAT WAGON ELECTRIC HEATERS
Once you have established that you have enough power to properly run a Heat Wagon Electric
Heater, you still need to deliver the power to the heater adequately. You will need to do a Voltage
Drop Formula. The Voltage Drop Formula is amps (source), times resistance (cord’s wire size)
equals voltage drop. A cords wire size resistance chart is below:
Wire Size Resistance Chart
#4 0.000308 Resistance per Foot
#6 0.000403 Resistance per Foot
#8 0.000641 Resistance per Foot
#10 0.00102 Resistance per Foot
#12 0.00162 Resistance per Foot
#14 0.00258 Resistance per Foot
#16 0.00409 Resistance per Foot
#18 0.00651 Resistance per Foot
A sample formula is listed below:
Example: P1800-1 phase 75 amp
Minimum Voltage Required=208V
150 ft. x 12 gauge wire (0.00162) = .24
75 amps x .24 = 18.0 volt drop
220v (at source) – 18v = 202 volts
Conclusion: Heater will not run, wire too small or cord too long.
Options to Correct the Situation:
1. Increase gauge of wire: If you increased your wire 6 gauge wire, then your
formula would be as follows:
Example: P1800-1 phase 75 amp
Minimum Voltage Required=208V
150 ft. x 6 gauge wire (0.000403) = 0.0605
75 amps x 0.0605 = 4.53 volt drop
220 volts (at source) –4.53 volts= 215.46 volts
Now, your heater will run properly.
2. Run a shorter cord. If by chance you could use a 50ft cord instead of a 150ft
cord, then your formula would be as follows:
Example: P1800-1 phase 75 amp
Minimum Voltage Required=208V
50ft. x 12 gauge wire (0.00162) = .08
75 amps x .08= 6 volt drop
220 volts (at source) –6 volts= 214 volts
Now, your heater will run properly
8
P600 PARTS BREAKDOWN
Key # Description
1
2
3
4
5
6
7
8
9
10
11
12
13
15
9
Part#
Bottom Plate
HWP 4027013
Rear Panel
HWP 4027011
Front Panel
HWP 4027012
Inner Mantle
HWP 4027014
Air Guide Ring, Inner Mantle
HWP 4027020
(not shown)
Outer Mantle
HWP 4027010
Room Thermostat
HWP 20220
(Ambient)
Fan Motor
HWP 14145
Hub, Fan Motor
HWP 17907
Fan Blade
HWP 16109
Handle
HWP 80100
Heating Element (2)
HWP 42800
Wire Bushing (Guard Ring)
HWP 36809
Toggle Switch
HWP 26900 (400021)
Plastic Bracket for Bulb (2)
HWP 37910
Key # Description
16
17
18
19
20
21
22
23
24
25
26
28
29
30
Bracket for Inner Mantle
Terminal Block
Bracket for Terminal Block
Strain Reliever
Locking Nut, Strain Reliever
Power Cord
Plug, Handle (2 pcs)
Contactor
Overheat Limit Switch
Limiter, Air Outlet
Plug
Knob, Room Thermostat
Bracket for Limiter
Ground Lug
Part#
HWP 4027015
HWP 36704
HWP 4027016
HWP 36922
HWP 36923
ACC 30A10
HWP 80110
HWP 22570
HWP 21201
HWP 21206
HWP 00275-00T
HWP 20577
HWP 4027017
Not Included
P600 WIRING DIAGRAM
Key # Description
C
M
R1-R2
S1
S2
S3
S4
X1
X2
X3
Contactor
Fan Motor
Heating Element
Toggle Switch
Room Thermostat
Overheat Limit Switch
Limiter, Air Outlet
Terminal Block
Grounding Lug
Power Cord & Plug
Assembly
Part#
HWP 22570
HWP 14145
HWP 42800
HWP 26900 (40021)
HWP 20220
HWP 21201
HWP 21206
HWP 36704
Not Included
ACC 30A10
10
P900 PARTS BREAKDOWN
Key # Description
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
Part#
Bottom Plate
HWP 40081001
Rear Panel
HWP 40081002
Front Panel
HWP 40081003
Inner Mantle
HWP 40081004
Outer Mantle
HWP 40081005
Bracket, Inner Mantle
HWP 40081006
Bracket, Terminal Block
HWP 40081007
Overheat Limit Switch
HWP 21200
Plastic Bracket for Thermostat
HWP 37910
Ambient Thermostat
HWP 20220
Knob for Thermostat
HWP 20577
Fan Motor
HWP 180014 (14201)
Fan Hub, Plastic
HWP 17907
Fan Blade
HWP 16110
Handle
HWP 80100
11
Key # Description
17
18
19
20
21
22
23
24
25
26
Part#
Heating Element
HWP 42800 (Qty. 3)
Plug for Handle (2PK)
HWP 80110
Plug
HWP 00275-00T
Strain Reliever
HWP 36922
Toggle Switch
For S/N A0001-A120 - HWP 400021
For S/N B0121-B0270 - HWP 26901
For S/N B0270-Greater - HWP 26902
Contactor
HWP 22570
Power Cord Assembly
ACC 50A10
Guard Ring / Wire Bushnig
HWP 36809
Terminal Block
HWP 36704
Jam Nut
HWP 36923
P900 WIRING DIAGRAM
R1 R2 R3
Key # Description
C
M
R1-R3
S1
S2
S3
X1
X2
X3
Contactor
Fan Motor
Heating Element
Toggle Switch
Ambient Thermostat
Overheat Limit Switch
Terminal Block
Grounding Lug
Power Cord & Plug
Assembly
Part#
HWP 22570
HWP 14201 (180014)
HWP 42800
See Key #21
HWP 20220
HWP 21200
HWP 36704
Not Included
ACC 50A10
12
P1800-1, P1800-3, P1800D PARTS BREAKDOWN
13A
Key #
Part#
Description
Key #
Part#
Description
1
2
3
4
HWP 180007
HWP 180006
HWP 180015
HWP 180002
HWP 180032
HWP 180032A
HWP 180003
HWP 180009
HWP 180019
HWP 180005
HWP 180026
HWP 180022
HWP 180021
HWP 180008
HWP 180024
HWP 180025
HWP 400018
HWP 37910
HWP 180017
HWP 82760
Bottom Plate
Front Panel (P1800D - 1800037)
Rear Panel
Hood* (No Hatch)
Hood with Connection Hatch*
Connection Hatch*
Inner Mantle (Including Air Cone)
Bracket
Rear Grill (P1800D - 1800035)
Front Grill
Heating Element (9 per Heater)
Contactor
Main Switch Assembly
Overheat Limit Switch (Outer)
Overheat Limit Switch (Inner)
Unit Cooldown Switch
Thermostat Knob
Plastic Bracket
Ambient Thermostat
Plate Nut
19
20
21
22
23
24
25
26
28
29
30
32
HWP 36809
HWP 401604
HWP 180014
HWP 180033
HWP 180012
HWP 180027
HWP 180001
SFP S1500-105
HWP 180004
HWP 36615
HWP 36616
HWP 36703
(HWP 180023B)
HWP 180011
Guard Ring
Gasket for Connection Hatch*
Fan Motor (P1800D - 14350, Includes Blade)
Fan Hub (7mm Shaft)
Fan Blade
Circuit Breakers (P1800-1 Only)
Handle
Bracket for Terminal Block (P1800-1 Only)
Gasket
Terminal Block (P1800-1 Only)
Locking Clamp (P1800-1 Only)
Terminal Block (P1800-3 Only)
5
6
7
8
9
10
11
12
13
13A
14
15
16
17
18
33
Fan Hub Cap & Bolt
*Similar Equipped Models Only
Not Shown
WD1225
Duct for
P1800D (12”x25’ long)
Capacitor for #2, P1800D HWP 1800036
1800038
13
Capacitor Holder
WIRING DIAGRAM HEAT WAGON P1800
SINGLE PHASE
HWP 180022
HWP 180027
HWP 180014
HWP 180026
HWP 180021
HWP 180017
HWP 180025
HWP 180024
HWP 180008
HWP 36615
WIRING DIAGRAM HEAT WAGON P1800
THREE PHASE
HWP 180022
HWP 180014
HWP 180026
HWP 180021
HWP 180017
HWP 180025
HWP 180024
HWP 180008
HWP 180023B
14
P4000 - P6000 PARTS BREAKDOWN
15
P4000 - P6000 PARTS BREAKDOWN
Key #
Part#
Description
1
HWP 400003
Heat Exchanger Chamber
4
HWP 400002
Hood (Including Connection Hatch)
5
HWP 400027
Connection Hatch Only
6
HWP 400001
Handle
7
HWP 400006
Front Panel
8
HWP 400008
Duct Adapter
9
HWP 400007
Bottom Frame
10
HWP 400011
Support Leg
11
HWP 400005
Wheel Shaft
13
HWP 180024
Overheat Limit Switch (Inner)
14
HWP 180025
Cooldown Thermostat
15
HWP 20550
Outlet Air Thermostat (PETE)
17
HWP 400004
Wheel
18
HWP 74600
Locking Washer
20
HWP 400026
Heating Element (15 Per Heater, P4000)
HWP 600026
Heating Element (15 Per Heater, P6000)
24
HWP 400015
Rear Panel
25
HWP 400009
Partition Panel / Bracket
26
HWP 400010
Contactor Mounting Plate
29
HWP 400019
Fan Guard Grill
30
HWP 400020
Bushing, Medium
31
HWP 400016
Bushing, large
33
HWP 400022
Contactor (4 Per Heater)
34
HWP 180016
Strain Reliever
35
HWP 400021
Toggle Switch
36
HWP 38110
Fuse Holder
36A
HWP PEF1
Fuse
37
HWP 36615
Terminal Block
38
HWP 28400
Transformer (PETR)
39
HWP 36616
Locking Clamp + End Plate
40
HWP 37910
Plastic Bracket
41
HWP 180017
Ambient Thermostat
42
HWP 400018
Thermostat Knob
45
HWP 400014
Fan Motor
47
HWP 400012
Fan Blade
48
HWP 36802
Bushing, Small
WD1425
Duct for P4000, P6000 (14”x25’ long)
Not Shown
16
P4000 - P6000 CONTROL BOX
11
3
2
2
3
3
3
2
4
9
8
6
10
2
7
1
Item
1
2
3
4
5
6
17
Part No.
HWP 180017
HWP 400022
HWP 400021
HWP 20550
HWP 36615
HWP 28400
5
Description
AMBIENT THERMOSTAT
CONTACTORS
SWITCH
OUTLET AIR THERMOSTAT (PETE)
TERMINAL BLOCK
TRANSFORMER (PETR)
Item
7
8
8
9
10
11
Part No.
HWP PEF1
HWP 400026
HWP 600026
HWP 180024
HWP 180025
HWP 400014
Description
FUSE
HEATING ELEMENT - P4000
HEATING ELEMENT - P6000
OVERHEAT LIMIT SWITCH (INNER)
UNIT COOLDOWN T-STAT
FAN MOTOR
P4000 - P6000 WIRING
480 Volt 60 Hz 3 PH
15
12
11
14
13
3
1
2
5
16
16
16
16
16
6
4
Key #
7
8
9
10
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
16
Part#
Description
HWP 28400
HWP PEF1
HWP 400014
HWP 180024
HWP 180017
HWP 20550 (PETE)
HWP 180025
HWP 400021
HWP 400021
HWP 400021
HWP 400022
HWP 400022
HWP 400022
HWP 400022
HWP 400022
HWP 400026
HWP 600026
Transformer
Fuse
Fan Motor
Overheat Limit Switch
Ambient Thermostat
Limit Switch - Outer
Unit Cooldown Switch
Control Switch (for output 16KW)
Control Switch (for output + 16KW)
Control Switch (for output + 8KW)
Contactor & Coil (for output 16KW)
Contactor & Coil (for output + 16KW)
Contactor & Coil (for output + 8KW)
Fan Contractor
Pole 4 of Contactor C1
Heating Elements, 2.7KW each for P4000
Heating Elements, 4.0KW each for P6000
18
P4000 - P6000 WIRING
19
ELECTRIC HEATER TROUBLESHOOTING
Before beginning the Troubleshooting section, please review the Set-up and Installation section of
this manual. Most technical issues can be resolved with proper set-up and preventative maintenance.
Symptom
Cause
Turn thermostat up and motor does No power on any phase.
not come on:
Check
Remedy
Check for 240V between L1 and L2 Refer to Setup and Operation
section.
(for single phase models). Check
for power between L1 and L2, L2
and L3, and between L1 and L3
(for 3 phase models).
Overheat Limit (TO)
Overheat Limit (TO)
Check for continuity. The switch
should be closed.
Replace
Main Switch assembly
Check for continuity.
Replace
Motor
Check for propper voltage to motor. Replace
Motor Relay
(P4000 and P6000 Only)
Check for 24 volts to contactor.
Make sure contactor pulls in. If
not, replace.
Control Transformer (P4000 and
P6000 only)
Check for 24 volts out from Control
Transformer.
Replace
Motor Starts but air comes out the
inlet:
Reversed power (hot) wires
Check power at terminal block
Switch first two power wires at
terminal block
Motor starts but no heat:
Ambient Thermostat
Turn thermostat above ambient
temperature.
Replace
Overheat limit(s)
Check for continuity. It is a closed
switch
Replace
Contactors
Make sure they are clean, tight,
and that they pull in when voltage
is applied
Replace
Circuit Breakers (P1800-1 only)
Check that none are tripped and
power flows thru.
Replace
Heating Elements
Visual check for burns. Check
resistance of each individual
element
P600 & P900 19.7 K Ohms, P1800
Series 26 K Ohms, P4000 85 K
Ohms, P6000 54 K Ohms
Check for resistance.
Replace
Check for proper wiring.
Rewire
Duct restrictions.
Straighten duct.
Dust buildup on inlet grill
Clean fan area.
Fan Cooldown Thermostat
Heater operates, fan doesn't cool
the unit after thermostat is satisfied.
High limit tripping
Low Volume of Air
20
21
22
342 N. Co. Rd. 400 East
Valparaiso, IN 46383
219-464-8818 • Fax 219-462-7985
www.heatwagon.com
Download PDF