Reznor SCE Unit Installation Manual - Manual (Page 36)

FIRST:
Contact the installer.
Name _______________________________________________________________________________________
Address ________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
Phone ________________________________________________________________________________________
SECOND:
Contact the nearest distributor (See Yellow Pages). If no listing,
contact Authorized Factory Representative, 1-800-695-1901.
THIRD:
Contact: REZNOR ®
150 McKinley Avenue
Mercer, PA 16137
Phone: (724) 662-4400
Model No. ____________________________________________________
Unit Serial No. ________________________________________________
Date of Installation _____________________________________________
37. Troubleshooting (cont'd)
TROUBLE (cont'd) PROBABLE CAUSE (cont'd) REMEDY (cont'd)
1. Manual valve not open. 1. Open manual valve.
2. Main valve not operating. 2.
a) Defective valve. a) If 24 volt is measured at valve connections and valve remains closed, replace
valve.
b) Loose wire connections. b) Check and tighten all wiring connections.
3. Ignition control does not power main valve. 3.
a) Loose wire connections. a) Check and tighten all wiring connections.
b) Flame sensor grounded. (Pilot lights - spark
continues) b) Be certain ame sensor lead is not grounded or insulation or ceramic is not
cracked. Replace as required.
c) Gas pressure incorrect. c) Adjust gas pressure. (See Paragraph 10.)
d) Cracked ceramic at sensor. d) Replace sensor.
e) Faulty ignition controller. e) See Paragraph 31. If all checks indicate no other cause, replace ignition
controller. Do not attempt to repair the ignition controller. This device has no
eld replaceable parts.
1. Dirt y lters in blower system. 1. Clean or replace lters.
2. Incorrect manifold pressure or ori ces. 2. Check manifold pressure (See Paragraph 10).
3. Cycling on limit control. 3. Check air throughput.
4. Improper thermostat location or ad j ustment. 4. See thermostat manufacturer's instructions.
5. Belt sli pping on blower 5. Adjust belt tension
6. Fan control improperly wired 6. Connect as per wiring diagram.
7. Defective fan control. 7. Replace fan control.
8. Blower set for too low temperature rise. 8. Slow down blower or increase static pressure.
1. Circuit open 1. Check wiring and connections.
2. Fan Control inoperative 2. Replace fan control.
3. Fan control improperly wired 3. Connect as per wiring diagram.
4. Contactor inoperative 4. Replace contactor.
5. Defective motor. 5. Replace motor.
1. Motor overload device cycling 1. Check motor load against motor rating place. Replace motor or overload device.
2. 3-phase motor rotating in opposite direction 2. Interchange two legs of supply connections.
1. Improper motor pulley adjustment 1. See instructions on air throughput (See Paragraph 17).
2. Improper static pressure on duct system 2. Adjust dampers in duct system.
3. Low voltage 3. Check power supply.
Motor will not run
Motor cuts out on
overload
Motor turns on and
while operating
Pilot lights, main
valve will not open
No heat (Heater
operating)
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12/14 Form I-SCE (12-14)
Installation Record