669997-UAI-H-0514
4
Johnson Controls Unitary Products
LINE POWER CONNECTIONS
Power may be brought into the unit through the outlet air end of
the unit (top left when unit is vertical) or the left side panel. To
minimize air leakage, seal the field wiring entry point.
Field wiring connects to heat kits with circuit breaker or terminal
block depending on the heat kit model. The multiple circuit, sin-
gle phase heater kits have options for a single power supply.
For the 3 phase 20kW and 25kW kits with multiple circuits, a
single point power accessory kit may be ordered separately. A
ground lug is also provided on the kits. Refer to unit instructions
for electrical specifications.
All wiring must comply with local and National Electrical Code
requirements. Read and heed all unit caution labels.
NOTICE
FIGURE 2:
Heat Kit Connection
FACTORY WIRING ATTACHED
TO THIS SIDE
(Do not need to remove)
TERMINAL BLOCK OR
CIRCUIT BREAKERS
(May be 1, 2, or 3)
FIELD SUPPLY WIRING WILL
BE ATTACHED TO LEFT SIDE
FIGURE 3:
Supply Power Connection
FIELD POWER WIRING
(208/230V)
COMPONENT CODES
GND - GROUND LUG
CB - CIRCUIT BREAKER
CKT - CIRCUIT
CN - WIRE CONNECTOR/NUT
GND
JUMPER BAR
SINGLE SOURCE POWER
MULTI-SOURCE POWER
MULTI-SOURCE POWER
WITH JUMPER BAR
TERMINAL BLOCK OR
CIRCUIT BREAKER
POWER
SUPPLY
POWER
SUPPLY
SINGLE SOURCE POWER
TERMINAL BLOCK OR
CIRCUIT BREAKER
CKT 2
CKT 1
POWER
SUPPLY
CB
CB
CB
CB
CB
2 CIRCUITS ON 13KW-20KW
3 CIRCUITS ON 25KW
POWER
SUPPLY
GND
GND
GND
GND
POWER
SUPPLY
L1
L2
L1
L2
L1
L2
CKT 3
L1
L2
L1
L2
CB
CB
CB
L1
L2
L3
L1
L2
L3
L1
L2
L3
MULTI-SOURCE POWER
CKT 2
CKT 1
2 CIRCUITS ON 13KW-20KW
3 CIRCUITS ON 25KW
1 PHASE ELECTRIC HEAT OPTIONS:
3 PHASE ELECTRIC HEAT POWER OPTIONS:
