Westinghouse WBRCNG140F Installation Manual download pdf (Page 59)

WHL-015 REV. 12.17.14

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 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 qualified

service technician to inspect the appliance and the vent system.

Check CH and DHW Pressure Gauges

 Ensure the pressure reading on the CH gauge does not exceed 30 psig. Higher pressure readings may indicate a problem

with the expansion tank.

 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.

 Contact a qualified service technician if problem persists.

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 qualified service technician immediately if any problems are found.

Failure to inspect the venting system and have it repaired by a qualified service technician can result in vent system failure, causing

severe personal injury or death.

Visually inspect the intake piping for any signs of blockage. Inspect the

entire length of the intake pipe to ensure piping is intact and all joints are

properly sealed. Inspect the intake pipe bracing. Ensure bracing is

undamaged and in good condition. Notify a qualified service technician if

any problems are found.

Check Pressure Relief Valve

 Visually inspect the primary pressure relief valve and discharge

pipe for signs of weeping or leakage.

 If the pressure relief valve often weeps, the expansion tank may

not be operating properly. Immediately contact a qualified

service technician to inspect the appliance and system.

Check Vent Condensate Drain System

 While the appliance is running, check the discharge end of the condensate drain tubing. Ensure no flue gas is leaking from the

condensate drain tubing by holding your fingers near the opening.

 If you notice flue gas leaking from the opening, this indicates a dry condensate drain trap. If problem persists, contact a

qualified service technician to inspect the appliance and condensate line and refill the condensate trap.

 If applicable, check the condensate neutralizer and ensure it is full of condensate neutralizing marble chips.

Check the Air Vent

Loosen cap “A” one counterclockwise turn to allow air vent to operate. See Figure 44. If the air vent valve works freely without leaking,

close the valve by turning clockwise. If vent does not operate correctly, contact a qualified service technician to replace the vent.

Check Primary and Gas Piping

 Remove the appliance cover and perform a gas leak inspection following Operating Instructions, page 2, this manual. If gas

odor or leak is detected, follow procedures on page 2. Call a qualified service technician.

 Visually inspect for leaks around the internal appliance water 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.

Figure 44 – Air Vent Detail

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Westinghouse WBRCNG140F Installation Manual Page 59

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