Install Instructions

62
Maintenance Procedures
Clean Condensate Drain Assembly
1. Remove the condensate assembly from the
appliance.
2. Empty any water from the trap and drain
assembly. Flush with fresh water as neces-
sary to clean.
3. Check the drain piping from the condensate
drain assembly to the drain. Flush to clean
as necessary.
4. Fill the condensate drain assembly with water.
5. Reassemble the condensate drain assembly
onto the appliance.
When re-assembling the condensate drain
assembly ensure all gaskets are in place and
correctly installed. Ensure all associated
internal joints are complete, tight and secure.
Failure to comply can result in flue gas leak-
age resulting in severe personal injury, death
or substantial property damage.
Check Ventilation Air Openings
Verify that all ventilation openings to the
mechanical room or building are open and
unobstructed. Check the operation and wiring
of any automatic ventilation dampers.
Check and verify the vent discharge and the
combustion air intake are free of debris and
obstructions.
Inspect Vent and Combustion Air Piping
Visually inspect the venting system and com-
bustion air piping for blockage, deterioration
or leakage. Repair any deficiencies.
Verify that the combustion air inlet piping is
connected, sealed and properly supported.
Failure to inspect the vent system and
combustion air inlet piping and to have
any conditions repaired, can result in
severe personal injury or death.
Check Boiler System
Verify all system components are correctly
installed and operating properly.
Check the cold fill pressure for the system, typ-
ical cold water fill pressure is 12 psig [0.8 bar].
Verify the system pressure, as the appliance
operates at high temperature, to ensure the pres-
sure does not exceed 25 psig [1.7 bar].
Excessive pressure reading may indicate expan-
sion tank sizing is incorrect or system perfor-
mance problems.
Inspect air vent and air separators in the sys-
tem. Remove the caps on automatic air vents
and briefly depress the valve stem if present to
flush vent. Replace the cap when completed.
Ensure vents do not leak. Replace any leaking
vents.
Removing Internal Flue and Condensate
Pan For Inspection
1. Loosen the flue pipe retaining ring as
shown in Fig. 23, page 63.
2. Pull up on the flue pipe to disengage from
the condensate pan as show in Fig. 24.
3. Pull the flue pipe down and out to disengage
from the vent adapter as shown in Fig. 24,
page 63.
4. Lift up the condensate pan to disengage
from trap.
5. Once the condensate pan is clear of the bot-
tom jacket, rotate it towards the front of the
appliance and push down on the rear to dis-
engage from the heat exchanger as shown
in Fig. 25, page 63.
- Inspect the flue pipe and condensate
pan for cracks, damage or distortion.
Check all gaskets for tears, discol-
oration or other damage, replace as nec-
essary.
- Once inspection is completed re-assem-
ble the condensate pan and flue pipe in
reverse order.
WARNING
WARNING