Roberts Gorden UHD[X][S][R] 350 Manuel D’Utilisation
SECTION 9: W
IRING
19
9.4 Ladder Wiring Diagram
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 V. 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 V. For supply connections, use No. 14 AWG or larger wires.
FLAME
SENSOR
PRESSURE SWITCH
THERMOSTAT CONNECTION
6
3
4
5
2 1
120 VAC
TRANSFORMER
FLUE BLOWER
GAS VALVE
ELECTRODE
IGNITION
MODULE
MODULE
FLAME
SPARK
LIMIT SWITCH
LIMIT SWITCH (UHD 300, 350, 400 ONLY)
MANUAL RESET LIMIT SWITCH
(UHD 75 - 125 ONLY)
(UHD 75 - 125 ONLY)
FLUE BLOWER