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IX. Service and Maintenance
This boiler uses flammable gas, high voltage electricity, moving parts, and very hot water under
high pressure. Assure that all gas and electric power supplies are off and that the water tempera-
ture is cool 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 jump out or bypass any safety or operating control or component of this boiler.
Read, understand and follow all the instructions and warnings contained in ALL of the compo-
nent instruction manuals.
Assure that all safety and operating controls and components are operating properly before plac-
ing the boiler back in service.
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper
and dangerous operation.
Verify proper operation after servicing.
Au moment de l'entretien des commandes, étiqueteztous les fils avant de les débrancher. Des
erreurs de câblage peuvent entraîner un fonetionnement inadéquat et dangereux.
S'assurer que l'appariel fonctionne adéquatement une fois l'entretien terminé.
A.
Periodic Maintenance. Inspection and service should
be conducted periodically. Turn off electrical power and
gas supply while conducting service or maintenance.
Follow instructions TO TURN OFF GAS TO APPLI-
ANCE. See Figure 27.
1. General
a. Keep the area around the boiler free from com-
bustible materials, gasoline and other flammable
vapors and liquids.
b. Keep the area around the combustion air inlet
terminal free from contaminates.
c. Keep the boiler room ventilation openings open
4
DANGER
WARNING
CAUTION
ATTENTION
and unobstructed.
2.
Low water cutoff (if so equipped).
a. Probe Type (Annual Service). Probe type
LWCO should be removed once a year, exam-
ined and cleaned of any dirt accumulations to as-
sure proper operations. Do not attempt to repair
mechanisms in the field. Complete replacement
mechanisms, including necessary gaskets and
installation instructions, are available from the
manufacturer.
3.
Vent/Air Intake System. Inspect for obstructions,
soot accumulation, proper support, deterioration of
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