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THERMOSTAT
SUBASE
4
R
LLS
NC
Y
TO IFM LINE
VOLTAGE
POWER
SUPPLY
G
IFR
A
W
ARRANGEMENT A–COOLING ONLY
4
ADD JUMPER
R
LLS
NC
Y
TO IFM LINE
VOLTAGE
POWER
SUPPLY
G
IFR
A
W
ARRANGEMENT B – 1 TRANSFORMER;
COOLING AND 1-STAGE HEATING
TRANS
MIN 60VA
Y
C
C
BLU
BRN
COND UNIT
TRANS
NOTES : 1. REFER TO UNIT LABEL WIRING DIAGRAM FOR
SEE NOTE 2
C
HC
IFM
LLS
NC
C
TRANS – TRANSFORMER
BLU
BRN
HC
Fig. 6—24-V Control Circuit Connector
5
RH
LEAVE JUMPER
ON SUBASE
RC
(RH TO RC)
LLS
B
NC
Y
1
Y
2
TO IFM LINE
VOLTAGE
POWER
SUPPLY
G
IFR
W
1
W
2
ARRANGEMENT C–1 TRANSFORMER;
COOLING AND 2-STAGE HEATING
WIRE COLORS. IFR, IFM AND LLS ARE LOCATED
INDOORS ON HEATING-COOLING APPLICATIONS.
IF ACCESSORY IFR IS REQUIRED FOR COOLING-
ONLY APPLICATIONS, LOCATE IFR IN FAN COIL.
2. N.E.C. CLASS 2, 24V CIRCUIT, MIN 40VA REQUIRED.
– CONTACTOR
– HEATING CONTROL
– INDOOR FAN MOTOR
– LIQUID LINE SOLENOID VALVE
– NORMALLY CLOSED
TRANS
SEE NOTE 2
C
BLU
BRN
HC
1
HC
2
A93199
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