2
Index
Page
Introduction .......................................................................................................................... 3
Electrical Supply & Polarity .................................................................................................. 3
Door Switch .......................................................................................................................... 4
Fan/Limit Switches ............................................................................................................... 4
Blower Motor ........................................................................................................................ 4-5
Oil Burner ............................................................................................................................. 5
Oil Pump .............................................................................................................................. 5-6
Natural to LP Conversion ..................................................................................................... 6
Igniter (Power Gas Only) ...................................................................................................... 7
Primary Control .................................................................................................................... 7
Cad Cell ............................................................................................................................... 8
Ignition Transformer ............................................................................................................. 8
Electrode Setting .................................................................................................................. 9
Combustion Air Band ........................................................................................................... 9
Air Housing, Blower Wheel................................................................................................... 10
CB200A Base ....................................................................................................................... 10
Troubleshooting Flow Charts ............................................................................................... 11-15
Service Guide ....................................................................................................................... 16-17
Oil to Gas Conversion .......................................................................................................... 18-22
Wiring Diagrams ................................................................................................................... 23-24
This service manual is primarily intended to assist qualified individuals experienced in
servicing heating and air conditioning appliances and is not intended to be used by
unqualified personnel.
Performing service as outlined in this service manual will require the use of calibrated test
instruments. Using uncalibrated test instruments will result in faulty diagnoses. All
instruments should be used in accordance with the manufacturer's instructions.
CAUTION:
!
