Optional Equipment - Westinghouse WGR050NG076 Installation Instructions Manual

Modulating Combustion System
Modulation during water heating operation is based on tank temperature. The control monitors the system to regulate burner output
during operation to match system demand. This increase in efficiency allows for substantial fuel savings.
High Output Cold Water Dip Tube (Optional – Supplied with Water Heater)
Increases hot water draw by 20% when installed. The High Output Cold Water Dip Tube also increases recovery time by 20%, and
decreases thermal efficiency by a small amount.
Gas Valve
The gas valve senses suction from the blower, allowing gas to flow only if the gas valve is energized and combustion air is flowing.
Tank Sensor
This sensor monitors system water temperature. The control module adjusts the burner firing rate so the outlet water temperature
meets the set point.
Control
The integrated control system monitors water temperature and regulates fan speed to regulate the unit's energy output. This allows the
unit to deliver the required amount of heated energy and nothing more.
Burner
Constructed of high grade stainless steel, the burner uses pre-mixed air and gas and provides a wide range of firing rates.
Condensate System with Built-In Neutralizing Cartridge
This is a condensing high efficiency water heater, and therefore has a condensate removal system. Condensate is nothing more than
water vapor, derived from combustion products and similar to an automobile when it is initially started. It is very important that the
condensate line slopes away from the water heater and down to a suitable inside drain.
The Built-In Neutralizing Cartridge is filled with marble chips that neutralize the condensate before it flows into a local drain. The marble
chips dissolve over time. The cartridge is designed to be easily removed, refilled with marble chips, and reinstalled,
If the condensate outlet on the heater is lower than the drain, you must use a condensate removal pump. In addition, local authorities
may require a condensate neutralizer to neutralize the condensate.
It is also very important not to expose the condensate line to freezing temperatures or any type of blockage. Plastic tubing must be the
only material used for the condensate line. Steel, brass, copper or other materials will be subject to corrosion or deterioration. A second
vent may be necessary to prevent condensate line vacuum lock on a long horizontal run. Also, an increase in pipe size may be
necessary to allow condensate to drain properly. Support of the condensation line may be necessary to avoid blockage of the
condensate flow.
Spark Ignition
The burner flame is ignited by applying high voltage to the system spark electrode. This causes a spark from electrode to ground.
C. OPTIONAL EQUIPMENT
Below is a list of optional equipment available from Westinghouse:

2" PVC Concentric Vent Kit (Part # KGAVT0501CVT)

3" PVC Concentric Vent Kit (Part # KGAVT0601CVT)

Outdoor Sensor (Part # 7250P-319)

Condensate Neutralizer Replacement (Part # 7700P-026)
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WHL-001 REV. 9.3.14