DTH Electric Boilers USE & CARE MANUAL
(Revision June 2014)
, Page
22.
Section 5: Maintenance
Properly maintained, your boiler will provide years of
dependable, trouble free service. It is recommended
that a regular routine maintenance program be
established and followed by the user. Components
are subject to eventual failure that requires service.
Failure to use the correct procedures or parts in
these circumstances may make the unit unsafe or
reduce the life of the boiler.
The owner should have the following inspection and
maintenance procedures performed:
5.1 BOILER WATER PIPING:
Yearly visual inspection.
Check all piping for signs of leakage near joints,
unions and shut-off valves. Repair as needed.
5.2 PRESSURE RELIEF VALVE
Twice a year.
Check for possible leak at the outlet of the safety
relief valve. If a leak is detected and that the
pressure at the indicator is less than the opening
pressure setting of the valve, change the pressure
relief valve by a new one having similar
characteristics. If the boiler pressure is higher than
the setting of the valve, ask your heating service
agency to determine the cause of the high pressure
and have it corrected rapidly. Do not plug the outlet
of this valve if a dripping condition occurs.
5.3 AIR PURGE
Twice a yeat
Check for proper operation of the automatic air
purgers and activate manual air vents to eliminate
air present.
5.4 ELECTRIC INSPECTION
:
Annually
It is recommended to perform a visual inspection of
the boiler electric compartment annually, during the
heating season, to ensure it is watertight and that
there are no signs of component or wiring
overheating. Repair as soon as possible if
necessary. Defective components should always be
replaced with the Original Manufacturer’s parts.
The manufacturer’s warranties DO NOT cover
tank failure due to improper installation or
maintenance. If the pressure relief valve on the
heater discharges periodically, this may be due
to thermal expansion. Immediately call a
qualified service technician to inspect and to
remedy as needed.
NOTE: To prevent premature tank failure, the air
trapped inside the tank must be purged
periodically.
Before manually operating the relief valve, make
certain no one will be spayed with the hot water
released by its opening. The water may be hot
enough to create a SCALD hazard. The water
released should be directed to a suitable drain to
prevent injury or damage.
DANGER
!
WARNING
!
