Section Vi - Service Instructions; Cleaning Boiler Heating Surfaces - Burnham MPC Installation And Operation Manual

This boiler used flammable gas, high voltage electricity, moving parts, and very hot water under high
pressure. Assure that all fuel and electric power supplies are off and that the water temperature is cool
before attempting any disassembly or service.
More than one gas shut-off valve and electrical disconnect switch are used on the boiler. Assure that
all gas valves and electrical disconnect switches are off before attempting any disassembly or service.
Do not attempt any service work if gas is present in the air in the vicinity of the boiler. Never modify,
remove or tamper with any control device.
This boiler must only be serviced and repaired by skilled and experienced service technicians.
If any controls are replaced, they must be replaced with identical models.
Read, understand and follow all the instructions and warnings contained in all the sections of this
manual.
If any electrical wires are disconnected during service, clearly label the wires and assure that the wires
are reconnected properly.
NEVER operate boiler without all sight glasses and brackets in place and securely fastened and sealed.
Very HOT combustion gas may cause burn injury.
Read, understand and follow all the instructions and warnings contained in ALL of the component
instruction manuals.
Assure that all safety and operating controls and components are operating properly before placing
the boiler back in service.
IMPORTANT - See Section V, Item (G) under
Operating Instructions, if it becomes necessary to add
water to the boiler more frequently than once a month.
A.
GENERAL - Inspection should be conducted annually.
Service as frequently as specified in following
paragraphs. Refer to Table XII for recommended
periodic testing of safety controls and other equipment.
While service or maintenance is being done, electrical
power to the boiler must be "off".
B.
cLEAN ThE BOiLER hEATiNG sURfAcEs
AND fLUE at least once each year, preferably at the
end of the heating season.
1. CLEAN THE VENT SYSTEM - Vent system should
be checked annually for:
a. Obstructions.
b. Accumulations of soot.
c. Deterioration of vent pipe or vent accessories
due to condensation or other reasons.
d. Proper support - no sags, particularly in
horizontal runs.
e. Tightness of joints.
68

SECTION VI - SERVICE INSTRUCTIONS

DANGER
WARNING
Remove all accumulations of soot with wire
brush and vacuum. Remove all obstructions.
Replace all deteriorated parts and support
properly. Seal all joints.
2. CLEAN THE BOILER FLUEWAYS AND
COMBUSTION CHAMBER.
a. Disconnect the fuel line(s) and remove the
burner. The burner may remain attached to the
BSD during cleaning if:
i. enough space exists for the BSD to swing
open completely with the burner still
attached
ii. and the burner weight is supported by a
suitable prop at all times.
b. Remove optional BSD cover panels (if
provided).
c. Remove four (4) 9/16" cap screws and lock
washers from the hinge pockets on the BSD.
d. Open the BSD and remove the baffles from all
flue passages.
e. Use a wire or fiber bristle brush to remove any
accumulated soot or debris from all of the flue
baffles.