3 uha(s) series internal wiring diagram, 16 9.3 uha(s) series internal wiring diagram, Combat – Roberts Gorden UHA SERIES 200 User Manual
Page 22: Uha u
COMBAT
®
UHA U
NIT
H
EATER
I
NSTALLATION
O
PERATION
AND
S
ERVICE
M
ANUAL
16
9.3 UHA(S) Series Internal Wiring Diagram
BLUE
BLACK
BLACK
ORANGE
ORANGE
YELLOW
BROWN
BLACK
WHITE
WHITE
L2 L1
ORANGE
ORANGE
BLACK
BLACK
GREEN
WHITE
WHITE
GREEN
GREEN
BLUE
BLACK
BLACK
BLACK
WHITE
GREEN
BLUE
GREEN
YELLOW
24 V
AC HOT
GROUND
FLAME
BLACK
BLACK
BLACK
6
3
4
5
2 1
4
5
3
1
SENSE
ELECTRODE
LIMIT SWITCH
PRESSURE SWITCH
AXIAL FAN
GAS VALVE
IGNITION MODULE
TRANSFORMER
AXIAL FAN (UH 300, 350, 400 ONLY)
LIMIT SWITCH
(UH 300, 350,
400 ONLY)
MANUAL RESET LIMIT SWITCH
(UH 30 - 125 ONLY)
THERMOSTAT INPUT: FIELD SUPPLIED
R = 24 VAC TO THERMOSTAT (RED)
G = MANUAL FAN INPUT FROM THERMOSTAT (GREEN)
W= HEAT DEMAND INPUT FROM THERMOSTAT (WHITE)
C = COMMON SIDE OF TRANSFORMER
BLOWER
R
G
W
C
ACC
L1
CMB BLOWER
NOTE:
For field wiring into service junction box, or 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. For supply connections use No. 14 AWG or larger wires.