Burnham RSA User Manual download pdf (Page 36)

trapped in the nozzle line. It may take several ring

cycles for that air to be fully vented through the

nozzle. Water in the fuel or poor ame shape can

also cause shut down noises.

P. TEST CONTROLS

WARNING

Before installation of the boiler is considered

complete, the operation of all boiler controls must

be checked, particularly the primary control and

high limit control.

1. CHECK THERMOSTAT OPERATION. Raise and

lower thermostat setting as required to start and stop

burner.

2. VERIFY PRIMARY CONTROL SAFETY

FEATURES using procedures outlined in

Instructions furnished with control (See back of

Control Cover) or Instructions as follows:

WARNING

Service of this boiler should be undertaken only

by trained and skilled personnel from a qualied

service agency.

Simulate ame failure:

• Follow the starting procedure to turn on the

burner.

• Close the hand valve in the oil supply line.

• Control enters recycle mode and tries

to restart burner after approximately 60

seconds.

• Safety switch should lock out in

approximately 15 seconds. Ignition and

motor should stop.

• Indicator light will ash ½ second on,

½ second off.

• Push red reset button to reset safety switch.

Simulate ignition failure:

• Follow the starting procedure to turn on the

burner, but do not open the oil supply hand

valve.

• Safety switch should lock out in

approximately 15 seconds. Ignition and

motor should stop.

• Indicator light will ash ½ second on,

½ second off.

• Push red reset button to reset safety switch.

Simulate power failure:

• Follow the starting procedure to turn on the

burner.

• With the burner running, turn off the power

to the system by tripping the circuit breaker

or removing the fuse.

• Burner should stop.

• Restore power. Burner should start.

3. VERIFY HIGH LIMIT OPERATION.

a. Adjust thermostat to highest setting.

b. Observe temperature gauge. When temperature

is indicated, adjust limit to setting below

observed temperature. Burner should stop.

c. Adjust limit to setting above observed

temperature. Burner should start.

d. Adjust thermostat to lowest setting. Adjust limit

to desired setting.

4. CHECK LOW WATER CUTOFF (if so equipped).

a. Adjust thermostat to highest setting.

b. With boiler operating, open drain valve and

slowly drain boiler.

c. Burner should stop when water level drops

below low water cutoff probe. Verify limit,

thermostat or other controls have not shut off

boiler.

d. Adjust thermostat to lowest setting. Rell

boiler.

Q. Boiler is now ready to be put into service.

IMPORTANT

IF, DURING NORMAL OPERATION, IT IS

NECESSARY TO ADD WATER MORE FREQUENTLY

THAN ONCE A MONTH, CONSULT A QUALIFIED

SERVICE TECHNICIAN TO CHECK YOUR

SYSTEM FOR LEAKS.

A leaky system will increase the volume of make-up

water supplied to the boiler which can signicantly

shorten the life of the boiler. Entrained in make-up

water are dissolved minerals and oxygen. When the

fresh, cool make-up water is heated in the boiler the

minerals fall out as sediment and the oxygen escapes

as a gas. Both can result in reduced boiler life. The

accumulation of sediment can eventually isolate the

water from contacting the steel. When this happens

the steel in that area gets extremely hot and eventually

cracks. The presence of free oxygen in the boiler creates

a corrosive atmosphere which, if the concentration

becomes high enough, can corrode the steel through

from the inside. Since neither of these failure types are

the result of a manufacturing defect the warranty does

not apply. Clearly it is in everyone’s best interest to

prevent this type of failure. The maintenance of system

integrity is the best method to achieve this.

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Burnham RSA User Manual Page 36

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