Installation Manual

WHL-019 REV. 12.17.14

Lower Return Tank Sensor

This sensor monitors the lower portion of the water heater inlet water temperature (system return). The control module reduces or

increases input, depending on how close the water temperature is to the outlet water temperature set point.

Control

The integrated control system monitors upper and lower 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 Drain Connection

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.

If the condensate outlet on the heater is lower than the drain, you must use a condensate removal pump (kit p/n 554200 available from

Westinghouse.) In addition, local authorities may require a condensate neutralizer to neutralize the condensate. Condensate

neutralizers are made up of lime crystals, marble or phosphate chips. Neutralizers can be installed in the field by the installer and

purchased from Westinghouse (p/n 7450P-212).

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:

 3” Stainless Steel Outside Termination Vent Kit (V1000)

 4” Stainless Steel Outside Termination Vent Kit (V2000)

 2” PVC Concentric Vent Kit (Part # KGAVT0501CVT)

 3" PVC Concentric Vent Kit (Part # KGAVT0601CVT)

 3” Polypro Vent Kit (Part # 8400P-001)

 3” Polypro Pipe (33’ length Part # 8400P-002, 49.5’ length Part # 8400P-003)

 PC Connection Kit (Part # 7250P-320)

 Condensate Neutralizer (Part # 7450P-212)

 Outdoor Sensor (Part # 7250P-319)

 Sanitizer Booster Kit (Part # VSBK-1200)

PART 3 – PREPARE WATER HEATER LOCATION

Carefully consider installation when determining heater location. Please read the entire manual before attempting installation. Failure to

properly take factors such as heater venting, piping, condensate removal, and wiring into account before installation could result in

wasted time, money, and possible property damage and personal injury.