User Guide

7
4. Maintenance Procedures
While the appliance is operating, check the discharge end of the2.
condensate drain tubing. Ensure no flue gas is leaking from the
condensate drain tubing by holding your fingers near the
o
pening.
I
f you notice flue gas leaking from the opening, this indicates a3.
dry condensate drain trap assembly. Fill the condensate trap
assembly. Contact a qualified service technician to inspect the
appliance and condensate line and refill the condensate trap if
problem persists regularly.
Ensure the condensate drain line is not blocked by pouring4.
water through 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, contact a qualified service technician to
inspect and clean the condensate line.
To fill the condensate drain assembly, if necessary, slowly pour5.
water into the top of the trap assembly until water appears at
the end of the drain line. Stop filling.
Fig. 1: Condensate Drain Trap Installation
4.2.5Check Manual Air Vents
Open manual air vent on top of unit. Once air has stopped1.
escaping, close the manual air vent.
4.3 6 - Month Maintenance
4.3.1 Check Water and Gas Piping
R
emove the appliance front jacket panel and perform a gas leak1.
inspection per steps 1 through 6 of the Operating Instructions in
Section V. If gas odor or leak is detected, immediately shut down
the appliance following procedures in Section V. Call a qualified
s
ervice technician.
Visually inspect for leaks around the internal appliance water2.
connections and around the heat exchanger. Visually inspect the
external system piping, circulators and system components and
fittings. Immediately call a qualified service technician to repair
any leaks.
Have leaks fixed at once by a qualified service techni-
cian. Failure to comply can result in substantial prop-
erty damage, serious injury or death.
WARNING
4.3.2Operate Pressure Relief Valve
Before proceeding, verify that the relief valve outlet has been1.
piped to a safe place of discharge, avoiding any possibility of
scalding from hot water.
To avoid water damage or scalding due to valve opera-
tion, a discharge line must be connected to the relief
valve outlet and directed to a safe place of disposal.
This discharge line must be installed by a qualified
service technician or heating/plumbing installer in ac-
cordance with the CHALLENGER Installation Manual.
The discharge line must be terminated so as to elimi-
nate the possibility of severe burns or property damage
should the valve discharge.
Read the temperature and pressure gauge to ensure the system2.
is pressurized. Lift the relief valve top lever slightly, allowing
water to relieve through the valve and discharge piping.
If water freely, release the lever and allow the valve to seat.3.
Watch the end of the relief valve discharge pipe to ensure that
the valve does not weep after the line has had time to drain. If
the valve weeps, lift the lever again to attempt to clean the valve
seat. If the valve does not properly seat and continues to weep
afterwards, contact a qualified service technician to inspect the
valve and system.
If the water does not flow from the valve when you lift the lever4.
completely, the valve or discharge line may be blocked.
Immediately shut the appliance down per the instructions in
Section V. Call a qualified service technician to inspect the valve
and system.
WARNING
Condensate Trap
Assembly