Lennox Allied Air A96UH2E Installation Instructions Manual page 43

3/16" QUICK CONNECT TERMINALS
FLAME SENSE SIGNAL
HI Cool 24VAC
HI HEAT 24VAC
LO COOL 24VAC
LO HEAT 24VAC
PAR
PAR
COMMON 24VAC
1/4" QUICK CONNECT TERMINALS
NEUTRALS = 120 NEUTRAL
HUM = UNPOWERED NORMALLY OPEN (DRY) CONTACTS
LI = 120 VAC INPUT TO CONTROL
ACC = 120 VAC OUTPUT TO OPTIONAL ACCESSORY
507581-04
THERMOSTAT CONNECTIONS (TB1)
DS = DEHUMIDIFICATION SIGNAL
W2 = HEAT DEMAND FROM 2ND STAGE T/STAT
W1 = HEAT DEMAND FROM 1ST STAGE T/STAT
R = CLASS 2 VOLTAGE TO THERMOSTAT
G = MANUAL FAN FROM THERMOSTAT
C = THERMOSTAT SIGNAL GROUND CONNECTED TO
TRANSFORMER GRD (TR) & CHASSIS GROUND (GRD)
Y1 = THERMOSTAT 1ST STAGE COOL SIGNAL
Y2 = THERMOSTAT 2ND STAGE COOL SIGNAL
O = THERMOSTAT SIGNAL TO HEAT PUMP
REVERSING VALVE
L = NOT USED
DH = NOT USED
Figure 65. Control Board
Issue 2128 Page 43 of 60