Lennox G32V Series User Manual

Page 12
TABLE 7
SURELIGHT CONTROL TERMINAL DESIGNATIONS
ACB COOL NOT USED
ACB HEAT NOT USED
PARK NOT USED
ACB LOW NOT USED
ACC ACCESSORY TERMINAL (LINE VOLT)
TX 120VAC TRANSFORMER
HOT 120VAC HOT INPUT
HTG ACC HEAT ONLY ACCESSORY (LINE VOLT)
NEUTRALS 120VAC NEUTRALS
24VAC HOT 24VAC HOT FROM TRANSFORMER
24VAC RTN 24VAC RETURN FROM TRANSFORMER
FLAME SENSE FLAME SENSE TERMINAL
TABLE 8
DIAGNOSTIC CODES
MAKE SURE TO ID LED’S CORRECTLY: REFER TO INSTALLATION INSTRUCTIONS FOR CONTROL BOARD LAYOUT.
LED #1 LED #2 DESCRIPTION
SIMULTANEOUS
SLOW FLASH
SIMULTANEOUS
SLOW FLASH
Power − Normal operation
Also signaled during cooling and continues fan.
SIMULTANEOUS FAST
FLASH
SIMULTANEOUS FAST
FLASH
Normal operation − signaled when heating demand initiated at thermostat.
SLOW FLASH ON
Primary or Secondary limit open. Units with board 63K89 or 24L85: Limit must close within 5
trials for ignition or board goes into one hour limit Watchguard. Units with board 56L83 or
97L48: Limit must close within 3 minutes or board goes into one hour limit Watchguard.
OFF SLOW FLASH
Pressure switch open or has opened 5 times during a single call for heat; OR: Blocked inlet/
exhaust vent; OR: Condensate line blocked; OR: Pressure switch closed prior to activation of
combustion air blower.
ALTERNATING SLOW
FLASH
ALTERNATING SLOW
FLASH
Watchguard − burners fail to ignite.
SLOW FLASH OFF Flame sensed without gas valve energized.
ON SLOW FLASH Rollout switch open. OR: 9 pin connector improperly attached.
ON
ON
OFF
ON
OFF
ON
Circuit board failure or control wired incorrectly.
FAST FLASH SLOW FLASH Main power polarity reversed. Switch line and neutral.
SLOW FLASH FAST FLASH Low flame signal. Measures below .61 microAmps. Replace flame sense rod.
ALTERNATING FAST
FLASH
ALTERNATING FAST
FLASH
Improper main ground or line voltage below 75 volts; OR: Broken ignitor; OR: Open ignitor
circuit.
NOTE − Slow flash equals 1 Hz (one flash per second). Fast flash equals 3 Hz (three flashes per second). Drop out flame sense current < 0.20 microAmps
TABLE 9
SureLight BOARD J156 TERMINAL
DESIGNATIONS
PIN # FUNCTION
1 Ignitor
2
Not Used
3
Ignitor Neutral
4
Combustion Air Blower Line Voltage
5
Not Used
6
Combustion Air Blower Neutral
TABLE 10
SureLight BOARD J58 TERMINAL
DESIGNATIONS
PIN # FUNCTION
1 Primary Limit In
2
Gas Valve Common
3
Roll Out Switch Out
4
Gas Valve 24V
5
Pressure Switch In
6
Pressure Switch and Primary Limit Out
7
Not Used
8
Roll Out Switch In
9
Ground

Lennox G32V Series Specifications

General

Brand	Lennox
Model	G32V Series
Category	Furnace
Language	English