ECR International ULTIMATE PF Series, Руководство по установке и эксплуатации

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34
MAINTENANCE
Drain it until pressure is reduced below the safe
limit. Then have the valve replaced immediately.
The relief valve should be tested monthly. Refer to
valve manufacturer’s instructions packaged with
relief valve.
EXPANSION TANK
The expansion tank may become waterlogged or
may receive an excess of air. Frequent automatic
opening of the relief valve indicates water logging. A
high boiler temperature accompanied by unusually
low radiation unit temperature (and “knocking”)
indicates excess air in tank.
To correct either condition, close the valve between
the boiler and the tank. Drain the tank until it is
empty. Check all the tank plugs and fittings. Tighten
as necessary. Open the valve between the boiler
and tank. Water will rise to the normal height in the
tank if you have an automatic fill valve (otherwise,
manually refill the system).
WATER SYSTEM
If system is to remain out of service during freezing
weather and does not contain antifreeze, always
drain it completely. Water left in to freeze will
crack the pipes and/or boiler.
ANTIFREEZE
Where used, antifreeze solution must be checked
at least once a year in the manner recommended by
the manufacturer of the antifreeze. The antifreeze
includes a corrosion inhibitor that can become
depleted in time, causing the solution to become
corrosive. It is important that this be checked and
the inhibitor be replenished or the system be refilled
with fresh antifreeze solution, whichever may be
required.
Antifreeze must be non-toxic, and of a type
specifically intended for use in closed hydronic
heating systems. Under no circumstances should
automotive antifreeze be used.
TANKLESS COIL GASKET
The tankless coil gasket should be checked at
least twice a year, for leakage, and replaced if
necessary.
! !
ANNUAL SERVICE CHECK
To assure trouble-free operation, we recommend
that you have the flue passages, burner, combustion
chamber, burner adjustment and operation of the
controls checked once a year by a competent
service technician.
Before the start of each season (or whenever the
system has been shut down for some time) re-check
the whole system for leaks, including the boiler
and vent pipe. Replace or patch any faulty boiler
seals. Check the silicone rubber seals around the
flue collector, between boiler sections, and around
the fire door. Ensure that there are no leaks. Use
RTV silicone rubber adhesive sealant (available in
caulking gun tubes) rated for 400°F to replace or
repair seals in locations where original seals have
deteriorated.
Flue passages between boiler sections should be
examined annually and cleaned if necessary. See
cleaning instructions that follow.
CAUTION
Label all wires prior to disconnection when
servicing controls. Wiring errors can cause
improper and dangerous operation. Verify proper
operation after servicing.
VENT PIPE
Visually inspect the entire venting system once
a month for any signs of leakage or deterioration.
If the vent shows any signs of leaking, replace it
immediately.
RELIEF VALVE
Do not connect directly to a drain, but leave an air
gap. No shut-off of any description shall be placed
between the safety relief valve and the boiler, or
on discharge pipes between such safety valves
and the atmosphere. Installation of the safety relief
valve shall conform to the ANSI/ASME Boiler and
pressure Vessel Code, Section IV. The manufacturer
is not responsible for any water damage.
This valve should open automatically when the
system pressure exceeds the safe limits (30
pounds per square inch). Should it ever fail to
open under this condition, shut down your system.