User Guide

7
3.0 Maintenance Procedures
3.2 Monthly Maintenance
3.2.1 Check Vent Piping
1. Visually inspect the entire length of flue gas vent
piping including all joints and appliance adapter
for any signs of blockage, leakage or deteriora-
tion of gaskets. Notify a qualified service tech-
nician immediately if any problems are found.
Failure to inspect the venting system as noted and
have it repaired by a qualified service technician can
result in the vent system failure, causing severe per-
sonal injury or death.
3.2.2 Check Combustion Air Inlet Piping
1. Visually inspect the combustion air inlet piping for
any signs of blockage. Inspect the entire length
of the combustion air inlet piping to ensure piping
is intact and all joints are properly sealed.
2. Notify a qualified service technician if any prob-
lems are found.
3.2.3 Check Pressure Relief Valve
1. Visually inspect the primary pressure relief valve
and the relief valve discharge pipe for signs of
weeping or leakage.
2. If the pressure relief valve often weeps, the
expansion tank may not be operating properly.
Immediately contact a qualified service techni-
cian to inspect the unit and system.
3.2.4 Check Condensate Drain System
1. Ensure condensate drain assembly is firmly
secured to bottom of heat exchanger/unit. See
Fig.1.
Do not operate PRESTIGE without condensate drain
assembly firmly installed on unit and filled with
water. If the trap is not installed and full of water flue
gases can be emitted into the surrounding area
causing severe personal injury or death.
2. While the unit is running, check the discharge
end of the condensate drain tubing. Ensure no
WARNING
WARNING
flue gas is leaking from the condensate drain
t
ubing by holding your fingers near the opening.
3. If you notice flue gas leaking this indicates a dry
condensate drain assembly. Fill the condensate
drain assembly with water. Contact a qualified
service technician to inspect the unit and con-
densate line and refill the condensate drain
assembly if problem persists regularly.
4. Ensure the condensate drain line is not blocked
by pouring water through the fill plug port on the
condensate drain assembly. The water should
flow out of the end of the drain line. If water
does not appear at the end of the drain line, con-
tact a qualified service technician to inspect and
clean the condensate line.
5. To fill the condensate drain assembly, if neces-
sary, remove the fill plug from the condensate
assembly. Slowly pour water into the trap
assembly until water appears at the end of the
drain line. Stop filling and replace plug.
3.2.5 Check Automatic Air Vents (If Used)
1. Remove the cap “A” from any automatic air vent
in the system and check operation by depressing
valve “B” slightly with the tip of a screwdriver. See
Fig. 2 on page 8.
2. If the air vent valve appears to be working freely
and not leaking, replace cap “A”, screwing it on
fully.
Flexible Tubing
(or 3/4 PVC/
CPVC Piping
to Drain)
Compression
Nut with Rubber Seal
Fill Plug
with Vaccum
Break Port
Condensate
Drain Assembly
Plastic Ball
(Not shown)
Retaining Nut
Metal Washer
Fig. 1: Condensate Drain Assembly