Operator`s manual

Operator's Manual: Models CB-1500 & CB-2500 (230 V / 50 Hz)
5-3
Priming the Metering Pump (continued)
Figure 5B - Locating the Oil Pump Priming Switch
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PRIMING LIGHT
OIL PUMP
PRIMING SWITCH
8. Activating the Pump
NOTE: The furnaces features a priming switch which is mounted on the right-hand side of the electrical
junction box on the front of the furnace cabinet. The priming switch has two positions:
• PRIME: This is used only for pump priming. When the switch is in the PRIME position, the
pump circuit is activated for priming. The pump will continue to run as long as the switch is in this
position. The oil primary control circuit is de-activated so the burner cannot run while the switch is in
the PRIME position.
• BURNER: This is used for normal burner operation. When the switch is in the BURNER
position, the burner controls the operation of the pump. The pump will only run while the burner is
running.
a. Refer to Figure 5B to locate the priming switch.
b. Turn the priming switch to the prime position. The pump should immediately start running.