COMBAT
®
CTCU U
NIT
H
EATER
I
NSTALLATION
O
PERATION
AND
S
ERVICE
M
ANUAL
14
9.3 CTCUA Wiring Diagram Models 7 - 32
GR
OUND
AT LIMI
T
BLUE
WHITE
YELLOW
BROWN
BLACK
BROWN
11
12
7
9
10
8
5
64
AXIAL FAN
COMBUSTION FAN
WHITE
YELLOW
PURPLE
PINK
GREY
2
3
1
L
E
N
E
N
L
PRESSURE SWITCH
RED
BLA
CK
BLUE
BR
O
W
N
BLACK
LIMI
T
THERMOS
TA
T
GREEN/YELL
O
W
BLUE
LOCK
OUT
SITE WIRING
230 V
50 Hz
SUPPLY
GR
OUND
NEUTRAL
THERMOS
TA
T
REMO
TE F
AN ON
REMO
TE L
OCK
OUT INDIC
ATION
REMO
TE L
OCK
OUT RESET
LINE
RESET
WI
TH
INDIC
AT
OR
LIGHT
EMC FILTER
FAN DELAY THERMOSTAT
THERMOS
TA
T
L1
N
T1
T2
S3
B4
L1
N
T1
T2
S3
B4
BLA
CK
SENSE
IGNI
TION
IGNI
TION CONTR
OL
BLA
CK
GAS
VA
LV
E
7 POLE PLUG
7 POLE SOCKET
BR
O
W
N
BROWN
IGNI
TION CONTR
OL
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.
