PB Heat EC Series User Manual download pdf (Page 20)

MAINTENANCE

A. GENERAL

1. Check pipes adjacent to cold walls or in unheated

spaces. Insulate and tape them if necessary to be

sure they can't freeze up. Keeping the water moving

at all times will reduce the likelihood of freezing.

2. If there is considerable foreign matter in the boiler

water, the boiler should be shut down and allowed to

cool, then drained and thoroughly flushed out. Drain

the boiler at the drain cock. Pipe the drain cock to a

suitable drain or containment device (if antifreeze is

used). Flush the system to remove remaining matter.

If there is evidence that hard scale has formed on the

internal surfaces, the boiler should be cleaned by

chemical means as prescribed by a qualified water

treatment specialist.

3. There must be no signs of continuous wetness at the

chimney. If signs of continuous wetness are

observed, a qualified service agency must be

consulted to modify the vent configuration to prevent

the formation of condensate, which may damage the

vent pipe.

B. DAILY MAINTENANCE (WITH BOILER

OPERATING)

Daily boiler observation can be performed by the owner.

If any potential problems are found, a qualified installer

or service technician/agency must be notified.

1. Remove any combustible materials, gasoline and

other flammable liquids and substances that generate

flammable vapors from the area where the boiler is

contained. Make certain that the boiler area has

ample air for combustion and ventilation and that

there are no obstructions to the free flow of air to

and from the boiler.

2. Observe general boiler conditions (unusual noises,

vibrations, etc.).

3. Observe operating temperature and/or pressure

gauge on the boiler. Boiler pressure should never be

higher than 5 psi below the rating shown on the

safety relief valve. The valve rating can be found on

the top of the safety relief valve. Boiler temperature

should never be higher than 250°F.

4. Check for water leaks in boiler and system piping.

C. WEEKLY MAINTENANCE (WITH BOILER

OPERATING)

1. Flush float-type low-water cut-off (if used) to remove

sediment from the float bowl as stated in the

manufacturer's instructions.

D. MAINTENANCE OF SAFETY RELIEF

VALVE

1. Check function and maintain safety relief valve as

specified by manufacturer, typically every other

month or every month, per the instructions on the

tag on the safety relief valve.

E. MONTHLY MAINTENANCE (WITH BOILER

OPERATING)

1. Check boiler room floor drains for proper

functioning.

2. Test probe type low-water cut-off (if used) by using

the Push-to-Test Button.

3. Test limit by lowering the limit set point until the

burner shuts down. When proper operation is

confirmed, return the set point to original setting.

4. Follow additional instructions in the Burner Manual

for proving the burner component operation.

F. MAINTENANCE – ANNUAL

TO CLEAN:

1. Remove top jacket panel and flue collector, Item 9.

2. To thoroughly clean the boiler it must be brushed

down from the top and/or left side. Alternatively, for

limited space or minimum clearance to combustible

installations, cleaning the heat exchanger from the

combustion chamber side is acceptable. If unit is

extremely dirty, it may be necessary to brush from all

directions. The target wall is made of a soft ceramic

fiber. Care must be taken not to damage this

material during cleaning.

Turn off power to boiler before

adjusting limit control.

CAUTION

Entire heating system, including

boiler, burner and venting system,

must be inspected at least once a

year by a qualified heating

professional. Boiler is to be cleaned

at least once a year.

NOTICE

Disconnect all power to the burner

before accessing combustion

chamber.

WARNING

Do not use this appliance if any part

has been under water. Improper or

dangerous operation may result.

Immediately call a qualified service

technician to inspect the boiler and

to replace any part of the control

system and any control which has

been under water.

WARNING

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PB Heat EC Series User Manual Page 20

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