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SlimFit
-
™
gas
fired water boiler
Maintenance procedures — MONTHLY
Perform DAILY procedures plus the
following additional procedures . . .
Check vent piping
1. Visually inspect the flue gas vent piping for any signs of
blockage, leakage or deterioration of the piping. Notify your
qualified service technician at once if you find any problem.
Failure to inspect the vent system as noted above
and have it repaired by a qualified service techni-
cian can result in vent system failure, causing severe
personal injury or death.
Check air piping
(DIRECT VENT installations)
1. Visually inspect the air inlet to be sure it is unobstructed.
Inspect entire length of air piping to ensure piping is intact
and all joints are properly sealed.
2. Call your qualified service technician if you notice any
problems.
Check the relief valve
1. Inspect the boiler relief valve and the relief valve discharge
pipe for signs of weeping or leakage.
2. If the relief valve often weeps, the expansion tank may not be
working properly. Immediately contact your qualified service
technician to inspect the boiler and system.
Check the condensate drain system
1. While the boiler is running, check the discharge end of the
condensate drain tubing and the open top of the condensate
tee at the boiler (see Figure 2, page 5 for locations). Make sure
no flue gas is escaping from the condensate drain tubing or
tee by holding your fingers in front of the opening.
12
— User's Information Manual
2. If you notice flue gas escaping, this indicates a dry conden-
sate drain trap. See step 4 for procedure to fill trap. Call
your qualified service technician to inspect the boiler and
condensate line and refill the condensate trap if problem
persists regularly.
3. Verify that the condensate drain line is unobstructed by
slowly pouring water into the top of the PVC tee on the side
of the boiler. The water should run out the end of the con-
densate drain line. If the water does not run out, call your
qualified service technician to inspect the boiler and clean
or replace the condensate drain line.
4. To fill the condensate trap, if necessary, temporarily plug the
end of the condensate drain line. Then slowly pour water into
the 1-inch plastic tee on boiler right side. Pour until water
fills drain line, then overflows into the boiler trap tubing.
When water fills up to top of 1-inch tee, stop filling. Remove
temporary plug from end of condensate drain line.
Check automatic air vents
1. See illustration at right.
2. Remove the cap from any automatic
air vent in the system and check
operation by depressing valve "B"
slightly with the tip of a screwdriver.
3. If the air vent valve appears to be
working freely and not leaking, re-
place cap "A", twisting all the way on.
4. Loosen cap "A" one turn to allow vent
to operate.
5. Have vent replaced if it does not
operate correctly.
Under some circumstances an SlimFit vent system
may not produce enough condensate to keep the
condensate trap full of liquid. If the trap is not full,
small amounts of flue products can be emitted into
the boiler room through the condensate drain line
or tee. Follow procedure below to fill trap.
Part number 550-100-088/0814
(if used)
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