Operator`s manual

Operator's Manual: Models CB-1500 & CB-2500 (230 V / 50 Hz)

6-1

SECTION 6: STARTING AND ADJUSTING THE BURNER

Understanding Burner Startup and Adjustment

Starting and adjusting the burner involves a series of separate procedures which must be accomplished

in sequence without interruption. Review all the procedures before attempting burner startup and

adjustment, paying careful attention to safety information statements.

Preparing the Burner for Startup

1. Turn the switch on the wall thermostat OFF.

NOTE: If your thermostat does not have an OFF setting, disconnect one thermostat wire so

the burner will not run.

2. Turn the main power to the furnace ON.

3. Wait at least 15 minutes until the preheater block is thoroughly warmed up. (Feel the back of the

burner box to make sure the preheater is sufficiently warm. The proving switch on the preheater

block will not allow the

burner to start until the block

is hot.)

NOTE: The preheater block

will remain warm as long as

power is supplied to the

burner. If the main power

supply is ever turned OFF,

you must wait at least 15

minutes until the preheater

block is thoroughly warm

before starting the burner.

4. Refer to Figure 6A to locate

the air regulator.

Loosen the locking nut on

the air regulator.

5. Turn the adjustment knob

on the air regulator

counterclockwise until 12mm

(1/2") of the threads on the

knob are exposed. DO NOT

back the knob all the way out.

Figure 6A - Component Detail of the CB-500 Burner

AIR REGULATOR

LOCKING NUT

COVER PLATE

AIR GAUGE

OIL GAUGE

I88901

AIR BAND

COMBUSTION