Internal Wiring Diagram - Roberts Gorden Combat UHA[X][S] 100 Installation & Operation Manual

UHA L P U H
OW ROFILE NIT EATER

9.5 Internal Wiring Diagram

AXIAL FAN
Black
FLUE
BLOWER
PRESSURE
SWITCH
O a ge
LIMIT
WITCH
(UHA
O a ge
300,350,
400 ONLY)
MANUAL RE ET LIMIT WITCH
(UHA 30 - 125 ONLY)
SENSE
ELECTRODE
IMPORTANT:
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
(221° F) and 600 volts. For supply connections, use No. 14 AWG or larger wires.
26
I O
NSTALLATION PERATION AND
AXIAL FAN (UHA 300,
350, 400) ONLY)
G ee
White
G ee
White
White
G ee
TRANSFORMER
White
G ee
Bl e
Bl e
Bl e
O a ge
O a ge
LIMIT
IGNITION
SWITCH
MODULE
Black
Black
ACC
Black
Black
S M
ERVICE ANUAL
Black
L2 L1
White
Black
Black
G ee
3 1
Black
4 5
Yellow
Yellow
B ow
2 1
3
6
5 4
R
R = 24 VAC TO THERMO TAT (RED)
G
G = MANUAL FAN INPUT FROM THERMO TAT (GREEN)
W
W = HEAT DEMAND INPUT FROM THERMO TAT (WHITE)
C
C = COMMON IDE OF TRAN FORMER
THERMOSTAT INPUT:
Black
FIELD SUPPLIED
CMB
Black
Blowe
L1
GAS VALVE