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Part number 550-100-027/0404
7
GAS-FIRED WATER BOILER SERIES 2 — User’s Information Manual
Maintenance procedures
(continued)
Monthly
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
qualifed service technician can result in vent system failure, causing severe
personal injury or death.
Check vent piping
Check air piping
1. Visually inspect the air inlet elbow 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 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.
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 lower right illustration, page 11, for
location of tee). Make sure no flue gas is escaping from the condensate drain tubing or tee
by holding your fingers in front of the opening.
2. If you notice flue gas escaping, this indicates a dry condensate 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.
Under some circumstances an Ultra 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.
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 condensate
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 condensate trap, if necessary, temporarily plug the end of the condensate drain line.
Then slowly pour water into the ½ 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 ½
inch tee, stop filling. Remove temporary plug from end of condensate drain line.
Check condensate
drain system
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,
replace 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.
Check automatic
air vents (if used)