253462-BTG-N-1010
Johnson Controls Unitary Products
11
POWER WIRING
BLOWER SPEED CONNECTIONS
Line Connection
460V Line connections
ELECTRIC HEAT
WITHOUT CIRCUIT BREAKER
SINGLE SOURCE (2.5 - 10 KW)
GND. LUG
POWER
SUPPLY
GND.
LUG
ELECTRIC HEAT
WITHOUT CIRCUIT BREAKER
3 PHASE (10 - 15 KW)
GND. LUG
POWER
SUPPLY
GND.
LUG
1 PHASE ELECTRIC HEAT
WITH CIRCUIT BREAKER
AS SHIPPED FROM FACTORY
SINGLE SOURCE
(2.5 - 25 KW) - 25 KW SHOWN
GND. LUG
POWER
SUPPLY
GND.
LUG
1 PHASE ELECTRIC HEAT
WITH CIRCUIT BREAKER
& BREAKER BAR REMOVED
MULTI-SOURCE (15 - 25 KW) - 25 KW SHOWN
GND. LUG
POWER
SUPPLY 1
GND.
LUG
POWER
SUPPLY 2
POWER
SUPPLY 3
TYPICAL WIRING WITHOUT ELECTRIC HEAT
GND. LUG
POWER
SUPPLY
GND.
LUG
POWER WIRING (208/230-1-60)
NOTE:
USE ONLY COPPER CONDUCTORS
TERMINAL
BLOCK
TERMINAL
BLOCK
MAY BE 1, 2, OR 3
CIRCUIT BREAKERS
MAY BE 1, 2, OR 3
CIRCUIT BREAKERS
(JUMPER BAR)
CONNECT LEADS WITH WIRE NUTS
(TYPICAL ALL HEAT KITS)
ELECTRIC HEAT
WITHOUT CIRCUIT BREAKER
3 PHASE (10 - 15 KW)
GND. LUG
POWER
SUPPLY
GND.
LUG
3 PHASE ELECTRIC HEAT
WITH CIRCUIT BREAKER
MULTI-SOURCE - 25 KW
GND. LUG
POWER
SUPPLY 1
GND.
LUG
POWER
SUPPLY 2
TERMINAL
BLOCK
CONNECT TRANSFORMER LEADS WITH WIRE NUTS
(TYPICAL ALL HEAT KITS)
(2) 3-PHASE
BREAKERS
FACTORY WIRED TO
TRANSFORMER
FACTORY WIRED TO
FAN MOTOR RELAY
TERMINAL ON
CONTROL BOARD
YEL
PUR
PUR
HIGH
MED
LOW
GND.
115 or 230 VOLT
BLOWER MOTOR
CAP
BRN
ORG
TAPE END & CAP
WITH WIRE NUT
L1
460 VOLT
BLOWER
MOTOR
L2
HIGH
HIGH
MED
LOW
PU
R
BRN
460 VOLT BLOWER MOTOR
ORG
L1
460 VOLT
BLOWER
MOTOR
L2
MEDIUM
HIGH
MED
LOW
PUR
BRN
ORG
460 VOLT
BLOWER
MOTOR
L2
LOW
HIGH
MED
LOW
PUR
BRN
L1
