Westinghouse WBRC 140F Series, Installation & Start-Up Instructions

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WHL-015 REV. 1.13.17
Pressure relief valves must be installed as close to the appliance as possible. No
other valves should be placed between the pressure relief valve and the
appliance. DO NOT install a CH pipe line relief valve with a pressure rating
greater than 30 psi, or a DHW relief valve with a pressure rating greater than 150
psi. These are the maximum allowable relief valve settings for this appliance. A
DHW pressure relief valve is not included with the appliance, and is to be field
supplied and installed.
After installing the relief valve and filling and pressurizing the system, test the
operation of the valve by lifting the lever. Make sure the valve discharges freely.
If the valve fails to operate correctly, replace it with a new relief valve. Ensure
that the maximum BTU/H rating on the pressure relief valve is equal to or greater
than the maximum input BTU/H rating of the combination appliance.
To avoid water damage or scalding due to relief valve operation:

Discharge line must be connected to relief valve outlet and run to a safe place of disposal. Terminate the discharge line in a
manner that will prevent possibility of severe burns or property damage should the relief valve discharge.

Discharge line must be as short as possible and the same size as the valve discharge connection throughout its entire length.

Discharge line must pitch downward from the valve and terminate at least 6” above the floor drain, making discharge clearly
visible.

Discharge line shall terminate plain, not threaded, with a material serviceable for temperatures of 375
o
F or greater.

Do not pipe discharge to any location where freezing could occur.

No shutoff valve may be installed between the relief valve and appliance or in the discharge line. Do not plug or place any
obstruction in the discharge line.

Test the operation of the relief valve after filling and pressurizing the system by lifting the lever. Make sure the valve
discharges freely. If the valve fails to operate correctly, replace it with a new relief valve.

Test relief valve at least once annually to ensure the waterway is clear. If valve does not operate, turn the appliance
“off”
and
call a plumber immediately.

Take care whenever operating relief valve to avoid scalding injury or property damage.

For appliances installed with only a pressure relief valve, the separate storage vessel must have a temperature and pressure
relief valve installed. This relief valve shall comply with
Relief Valves for Hot Water Supply Systems, ANSI Z21.22 CSA4.4.
FAILURE TO COMPLY WITH THE ABOVE GUIDELINES COULD RESULT IN FAILURE OF RELIEF VALVE OPERATION,
RESULTING IN POSSIBILITY OF SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL INJURY, OR DEATH.
PART 9 – CONNECT ELECTRICAL POWER / INITIAL STARTUP
Install wiring and electrically ground appliance in accordance with the authority having jurisdiction or, in the absence of such an
authority, follow the National Electrical Code, NFPA 70, and/or CSA C22.1 Electrical Code-Part 1 in Canada. Failure to follow all
applicable local, state, and national regulations, mandates, and building supply codes for guidelines to install the electrical power supply
could result in property damage, serious personal injury, or death.
ELECTRICAL SHOCK HAZARD
– To ensure safety, turn off electrical power supply at service entrance panel before making any
electrical connections to avoid possible electric shock hazard. Failure to do so could result in property damage, serious personal injury,
or death.
A. GENERAL OPERATING CONDITIONS

Temperature
o
Operating Ambient Temperature Range: 14
– 140
o
F (-10 to 60
o
C)
o
Operating Relative Humidity: Up to 90% at 104
o
F (40
o
C)
B. WIRING INFORMATION
1. This appliance must be properly grounded. Ensure the electrical outlet (120V / 15 Amp minimum) that the appliance will be plugged
into is properly grounded.
Figure 26
– Relief Valve Details