Pennco 3KW0.60 - Manual (Page 24)

24
ANNUALLY: Recommend flue passages, combustion
chamber area (target wall, fire door insulation,
durablanket), burner adjustment, operation of controls,
and boiler seals (fire door gasket or silicone seal, cast iron
sectional seals, flue collector) checked once each year
by competent Service Technician. Before start of each
heating season (or when system has been shut down for
extended periods of time) recheck whole system for water,
oil, and vent piping leaks. Replace or patch any leaks or
seals that are faulty.
VENT PIPE: Visually inspect entire venting system
once a month for any signs of leakage, deterioration, or
soot build up. If vent pipe shows any signs of leaking or
deterioration, replace it immediately. If it shows any signs
of soot build up, clean vent pipe and have burner settings
and combustion checked by competent professional.
SAFETY RELIEF VALVE: Valve should open automatically
when system pressure exceeds pressure rating (usually 30
psi) of safety relief valve. Should valve ever fail to open
under this condition, shut down the system. Drain system
until system pressure is reduced below safety relief valve
pressure rating. Contact competent Service Technician to
replace valve and inspect heating system and determine
cause, this problem may indicate equipment malfunction.
Test safety relief valve monthly during heating season.
Prior to testing, verify discharge pipe is properly connected
to valve outlet and arranged to safely dispose of boiler
discharge. Hold trip lever fully open for at least five
seconds in order to flush free any sediment lodged on
valve seat. Permit valve to snap shut. Refer to valve
manufacturer’s instructions packaged with valve for more
details.
CONVENTIONAL EXPANSION TANK: As noted in
“EQUIPMENT AND ACCESSORIES” section, this tank
may become water logged or may receive excess of air.
Frequent automatic opening of safety relief valve indicates
water logging. High boiler temperature accompanied by
unusually low radiation unit temperature (and “knocking”
noises) indicates excess air in the tank. To correct either
condition, close valve between boiler and tank. Drain the
tank until empty. Check all tank plugs and fittings, tighten
as necessary. Open valve between boiler and tank. Water
will rise to normal height in tank if system has automatic
fill valve, otherwise manually refill system.
DIAPHRAGM EXPANSION TANK: As noted in
“EQUIPMENT AND ACCESSORIES” section, tank may
become water logged. Frequent automatic opening of
safety relief valve indicates water logging. High boiler
temperature accompanied by unusually low radiation unit
temperature (and “knocking” noises) indicates excess air
in the tank. To correct this condition, replace diaphragm
expansion tank.
WATER SYSTEM: If system is to remain out of service
during freezing weather, always drain it completely (water
left in the system will freeze and crack pipes and/or boiler).
TANKLESS COIL (OR COVER PLATE) GASKET: This Check
gasket at least twice a year for leakage and replace if
necessary. If gasket is replaced, make sure when coil plate
(or cover plate) is reattached the ten nuts are torqued in
alternating pattern to ensure equal force is applied to entire
gasket creating a good seal.
Torque nuts to 23 ft-lbs so gasket does not squeeze out
from behind plate.
OIL BURNER: Oil burner maintenance is listed in this
manual under OPERATING THE BOILER.
Never burn garbage or paper in the unit, never leave
combustible material around it.
MAINTENANCE