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CTCU UNIT HEATER INSTALLATION OPERATION AND SERVICE MANUAL
14
9.3 CTCUA Wiring Diagram Models 7 - 32
GROUND AT LIMIT
BLUE
WHITE
YELLOW
BROWN
BLACK
BROWN
1112 7910 8 564
AXIAL FANCOMBUSTION FAN
WHITE
YELLOW
PURPLE
PINK
GREY
23 1
L
E
N
E
N
L
PRESSURE SWITCH
RED
BLACK
BLUE
BROWN
BLACK
LIMIT
THERMOSTAT
GREEN/YELLOW
BLUE
LOCKOUT
SITE WIRING
230 V
50 Hz
SUPPLY
GROUND
NEUTRAL
THERMOSTAT
REMOTE FAN ON
REMOTE LOCKOUT INDICATION
REMOTE LOCKOUT RESET
LINE
RESET WITH
INDICATOR
LIGHT
EMC FILTER
FAN DELAY THERMOSTAT
THERMOSTAT
L1NT1T2S3B4
L1NT1T2S3B4
BLACK
SENSE
IGNITION
IGNITION CONTROL
BLACK
GAS
VALVE
7 POLE PLUG
7 POLE SOCKET
BROWN
BROWN
IGNITION CONTROL
4 5
1 2
NOTE:
If any of the original wire supplied with the heater must be replaced, it must be replaced with wiring
material having a temperature rating of at least 105° C and 600 volts.