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669997-UAI-H-0514
FIELD SUPPLY WIRING WILL
BE ATTACHED TO LEFT SIDE
TERMINAL BLOCK OR
CIRCUIT BREAKERS
(May be 1, 2, or 3)
FIGURE 2: Heat Kit Connection
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.
1 PHASE ELECTRIC HEAT OPTIONS:
SINGLE SOURCE POWER
POWER
L2
SUPPLY
L1
TERMINAL BLOCK OR
CIRCUIT BREAKER
3 PHASE ELECTRIC HEAT POWER OPTIONS:
SINGLE SOURCE POWER
L3
POWER
L2
SUPPLY
L1
TERMINAL BLOCK OR
CIRCUIT BREAKER
FIGURE 3: Supply Power Connection
4
GND
L2
POWER
L1
SUPPLY
JUMPER BAR
GND
POWER
SUPPLY
All wiring must comply with local and National Electrical Code
requirements. Read and heed all unit caution labels.
FACTORY WIRING ATTACHED
TO THIS SIDE
(Do not need to remove)
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.
MULTI-SOURCE POWER
WITH JUMPER BAR
GND
CB
CB
CB
2 CIRCUITS ON 13KW-20KW
3 CIRCUITS ON 25KW
MULTI-SOURCE POWER
GND
L3
L2
CB
CKT 2
L1
L3
L2
CKT 1
CB
L1
NOTICE
MULTI-SOURCE POWER
L2
CKT 3
L1
L2
POWER
CKT 2
L1
SUPPLY
L2
CKT 1
L1
2 CIRCUITS ON 13KW-20KW
3 CIRCUITS ON 25KW
COMPONENT CODES
GND - GROUND LUG
CB - CIRCUIT BREAKER
CKT - CIRCUIT
CN - WIRE CONNECTOR/NUT
FIELD POWER WIRING
(208/230V)
Johnson Controls Unitary Products
GND
CB
CB
CB
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