Roberts Gorden 150 User Manual
SECTION 10: W
IRING
25 of 51
10.6 UHA[X][S] Series Ladder Wiring Diagram
FLAME
SENSOR
PRESSURE SWITCH
THERMOSTAT
CONNECTION
CONNECTION
6
3
4
5
2 1
120 VAC
TRANSFORMER
FLUE BLOWER
AXIAL FAN
AXIAL FAN
UHA (300, 350, 400 Only)
GAS VALVE
ELECTRODE
IGNITION
MODULE
MODULE
Flame
Spark
Limit Switch Limit Switch (UHA 300,
350, 400 Only)
Manual Reset Limit Switch
(UHA 30 - 125 Only)
Manual Reset Limit Switch
(UHA 30 - 125 Only)
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
(221° F) and 600 volts. For supply connections use No. 14 AWG or larger wires.
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.