Page 10
•
Battery connector – Connection points for the positive and negative
power from the house battery to the heater.
•
Remote connector – Connection point for the cable from the remote
LCD panel.
•
Service switch – The service switch allows full (service switch on) or
partial (service switch off) operation of the functions of the heater
control board. In the OFF position, it will only allow the circulating
pump and cabin fan circuitry of the control board to run in response
to both a thermostat calling for heat and an external heat source
(engine) supplying adequate heat to the system. The operating
circuitry of the burner in the heater itself is non-functional. In the ON
position, all operations and features of the heater and control board
are functional. In normal operation, the service switch is left ON.
NOTE: The service switch has an additional short circuit fault (# 3 –
4 – 5 – 6 – 8) reset function. This is performed by turning the
service switch OFF, then ON.
Summary of Contents for SCH25
Page 6: ...Page 2...
Page 9: ...Page 5 BURNER COUNTERFLOW TUBE COMBUSTION CHAMBER NOZZLE...
Page 16: ...Page 12 Figure 3 Wiring Diagram...
Page 34: ...Page 30...
Page 41: ...Page 37 Appendices Appendix 1 Technical Bulletins...
