Instruction manual

A. Line Voltage Connections
Units installed without electric heat require the use of a factory-authorized Power Plug Kit (KFAPP0125PLG). This kit provides the electrical
connections necessary to supply the unit with 230-v power when electric heat is not present. This kit is required only on those applications which
do not use electric heat.
NOTE: It is not necessary to cover the opening for accessory heaters. The unit will perform properly with opening uncovered.
B. 24-v Control System
CONNECTION TO UNIT
Wire low voltage in accordance with the wiring label on the blower. (See Fig. 7, 8, 9, 10, and 11.) Use No. 18 AWG color-coded, insulated (35°C
minimum) wire to make the low-voltage connections between the thermostat, the unit, and the outdoor equipment. If the thermostat is located more
than 100 ft from the unit (as measured along the low-voltage wire), use No. 16 AWG color-coded, insulated (35°C minimum) wire. All wiring
must be NEC Class 1 and must be separated from incoming power leads.
Refer to outdoor unit wiring instructions for any additional wiring procedure recommendations.
Fig. 9—Wiring Layout Heat Pump Unit
(Cooling and 2-Stage Heat with No Outdoor Thermostat)
A94060
R
G
C
E
L
O
Y
THERMOSTAT
R
R
C
O
Y
G
C
W
2
W
2
W
2
W
3
E
FAN COIL
(CONTROL)
HEAT PUMP
(CONTROL)
Fig. 7—Wiring Layout Air Conditioning Unit
(Cooling Only)
A94058
R
G
W
Y
THERMOSTAT
R
G
W
2
W
3
E
C
FAN COIL
(CONTROL)
C
Y
AIR COND.
Fig. 10—Wiring Layout Heat Pump Unit
(Cooling and 2-Stage Heat with 1 Outdoor Thermostat)
A94061
R
G
C
E
L
O
Y
THERMOSTAT
R
R
C
O
Y
G
C
W
2
W
2
W
2
W
3
E
ODTS
FAN COIL
(CONTROL)
HEAT PUMP
(CONTROL)
Fig. 8—Wiring Layout Air Conditioning Unit
(Cooling and 1-Stage Heat)
A94059
R
G
W
Y
THERMOSTAT
R
G
W
2
W
3
E
C
FAN COIL
(CONTROL)
C
Y
AIR COND.
—6—