Use And Care Manual
whl-648 Rev. 000 Rel. 003 Date 3.6.18
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Table 35 - Installation Checklist
Start-Up, Adjust, and Test Yes No
Has the appliance been started?
If necessary, has the appliance gas valve been adjusted?
Has the installation been customized per installation location requirements?
Have all customized system parameters been tested?
Has proper appliance operation been conrmed?
Burner Flame Yes No
Has the burner ame been checked?
Have combustion values been veried with a calibrated combustion analyzer?
If the ame does not appear normal, it may need to be cleaned by a qualied service technician. See Figure 53 for
ame sight glass window location.
Final Installation Approvals
Signed by Technician Date
Part 13 - Maintenance
The appliance must be inspected and serviced annually, preferably
at the start of the heating season, by a qualied service technician.
In addition, the maintenance and care of the appliance as outlined
in this manual must be performed by the user/owner to assure
maximum eciency and reliability. Follow the maintenance
procedures given throughout this manual. Failure to perform the
service and maintenance or follow the directions in this manual
could damage the appliance or system components, resulting in
substantial property damage, severe personal injury, or death.
Check the Surrounding Area
To prevent the potential of substantial property damage, severe
personal injury, or death, eliminate all the materials listed in Table
6 from the area surrounding the appliance and the vicinity of the
combustion air intake. If contaminates are found:
t Remove products immediately from area.
t If contaminates have been there for an extended period,
call a qualied service technician to inspect the appliance
for possible damage from acid corrosion.
If products cannot be removed, immediately call a qualied
service technician to re-pipe the combustion air intake piping
away from the contaminated areas.
Combustible/Flammable Materials
Do not store combustible materials, gasoline, or other ammable
vapors or liquids near the appliance. If found, remove these
materials immediately.
Air Contaminates
If allowed to contaminate combustion air, products containing
chlorine or uorine will produce acidic condensate that will cause
signicant damage to the appliance. Read the list of potential
contaminates and areas likely to have these contaminates in Table
6. If any of these contaminates are in the room where the appliance
is located, or combustion air is taken from one of the areas listed,
the contaminants must be removed immediately or the intake pipe
must be relocated to another area.
Ensure the Appliance Cabinet is Closed
Ensure the appliance cabinet is closed. Tighten the two upper and
lower screws to secure it. The cabinet must be closed while the
appliance is running.
Check the Power Source
Make sure the power cord is properly connected. The main power line
is connected to the manual switch box inside the appliance.
Check the Status of the Control Panel
Observe the Control Panel to ensure the appliance is powered on, and
to check for any error codes. Clear any debris from the panel.
Check CH and DHW Pressure Gauges
t Ensure the pressure reading on the CH gauge does not exceed
30 psig. Higher pressure readings may indicate a problem with
the expansion tank.
t Ensure the pressure reading on the DHW gauge does not
exceed 150 psig. Higher pressure readings may indicate a
problem with the domestic expansion tank.
t Contact a qualied service technician if problem persists.
Failure to inspect the venting system and have it repaired by a
qualied service technician can result in vent system failure, causing
severe personal injury or death.
Check Pressure Relief Valve
t Visually inspect the primary pressure relief valve and discharge
pipe for signs of weeping or leakage.
t If the pressure relief valve often weeps, the expansion tank may
not be operating properly. Immediately contact a qualied
service technician to inspect the appliance and system.
Check the Condensate Drain System
t While the appliance is running, check the discharge end of the
condensate drain tubing. Ensure no ue gas is leaking from
the condensate drain tubing by holding your ngers near the
opening.
Check Exhaust Vent and Intake Pipe Terminations
Verify that the appliance exhaust vent and intake pipe terminations are
clean and free of obstructions. Remove any debris from the exhaust
vent or intake pipe openings. If removing the debris does not allow
the appliance to operate correctly, contact your qualied service
technician to inspect the appliance and the vent system.
Check Exhaust Vent and Intake Piping
Visually inspect the exhaust vent for any signs of blockage, leakage, or
deterioration of the piping. Inspect the exhaust vent bracing. Ensure
bracing is undamaged and in good condition. Notify a qualied service
technician immediately if any problems are found.