Page 21
02
03
04
05
06
07
08
01
AA BB
CC
DD
EE
FF
Voltage: 120/60/1
Model:
UHCM Unit Heater
Supersedes: 538024-01 Form No:
Heat Input - 250k-400k BTUH
Rev: 2.0
N
R
C
GND
GND- Gr oundingPoi nt
G
W1
W2
WH T
L1
BLK
SPARK
GRY
HI
WH T
WH T- RED
WH T
4
CAI-N
1
CAI-L1
5
XFMR -COM
6
XFMR - 24VAC
3
XFMR -N
1
XFMR -L1
WH T
4
WH T
BLK
BLK
WH T
BLU
YEL
2
1
COMP-001
GND- Gr oundingPoi nt
GND- BOARD
GRN- YEL
GRN- YEL
GRY
WH T
2
FAN1 -N
5
FAN1 -GND
8
FAN1 -L1
BRN
2
FAN2 -N
5
FAN2 -GND
8
FAN2 -L1
GRN- YEL
WH T
BLK
WH T
GRN- YEL
BLK
FLAMESENS
NO COM
8
S47
7
S 195
9
S10
5
S18
11
GV-C
12
GV-H
2
S47
1
S 195
3
S10
4
S18
6
GV-M
COM
M
BLU
BLU
BLU
PNK
BRN
538024-02
2.0
538024-02
LOWVOL TAGE THERMO STAT CONNECTI ONS
P367
J367
HE AT (W2)
HE AT (W1)
BLOWER (G)
24VPOWER (R)
24VCOMMO N(C)
J363
1
3
5
6
24VAC- IN
R
-OUT
L1
N
GND
C
G
W1
W2
14
A3
IGNCTRL
FI ELDPROVI DE DPOWER WI RI NG.
CONNE CT TO P366 ANDGREEN GR OUND
SCREWLOC AT ED INSI DE UNIT.
-OUT
24VAC- IN
1
HI GH VOLTAGEPOWER CONNECTI ONS
FI ELDPROVI DE D
CL AS SII24VAC
THERMOSTAT WI RI NG
L1
N
P366
GNDWIRE
AT TACHED TO
XFMR MO UNTI NG
SCREW
J374
P374
4
FACRUN TEST
J373
P364
2
P365
612
J 366
11
5
P368
1
J368
739
24VAC- IN
-OUT
P363