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Indirect

Water Heaters

Installation

Start-Up

Maintenance

Parts

Warranty

For Residential and

Commercial Use

WI Models

This manual must only be used by a qualified installer / service technician. Read all instructions in this manual before 
installing. Perform steps in the given order. Failure to do so could result in substantial property damage, severe 
personal injury, or death.

Westinghouse reserves the right to make product changes or updates without notice and will not be held liable for 
typographical errors in literature.

The surfaces of these products contacted by potable (consumable) water contain less than 0.25% lead by weight as 
required by the Safe Drinking Water Act, Section 1417.

NOTE TO CONSUMER: PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE.

whl-007 Rev. 1.12.16

Summary of Contents for WI Models

Page 1: ...re to do so could result in substantial property damage severe personal injury or death Westinghouse reserves the right to make product changes or updates without notice and will not be held liable fo...

Page 2: ...instructions furnished with the water heater and by local codes and utility company requirements Installations Must Comply With Local state provincial and national codes laws regulations and ordinanc...

Page 3: ...e approved by the AHJ C Freeze Protection NOTE Consider piping and installation when determining heater location Place the water heater as close to the boiler as possible in a location not prone to fr...

Page 4: ...ng during an earthquake Contact local utilities for code requirements in your area Visit http www dsa dgs ca gov or call 1 916 445 8100 and request instructions However applicable local codes shall go...

Page 5: ...n the US water heater industry Hardness expressed as mg L or ppm may be divided by 17 1 to convert to grains per gallon Water may be classified as very soft slightly hard moderately hard or hard based...

Page 6: ...led in accordance with all local and national codes or any applicable standard that prevails Auxiliary connections are 3 4 on all models Never use dielectric unions or galvanized steel fittings Use on...

Page 7: ...urn the heater off and call a plumber immediately Take care whenever operating relief valve to avoid scalding injury or property damage FAILURE TO COMPLY WITH THE ABOVE GUIDELINES COULD RESULT IN FAIL...

Page 8: ...other type of no return or check valve in the system a thermal expansion tank IS MANDATORY The expansion tank must be sized for the entire water volume of the hot water system A weeping relief valve...

Page 9: ...ank suitable for potable water must be sized and installed within this piping system between the backflow preventer and the cold water inlet 3 All circulators should have an integral flow check 4 Drai...

Page 10: ...res It is recommended that a disconnect switch be installed between the boiler control and the water heater When wiring the water heater and controls be sure to label all wires to ease future maintena...

Page 11: ...Fill the water heater by opening the cold water shut off valve Make certain the field installed drain valve is completely closed Purge air from the system by opening a hot water outlet at a fixture i...

Page 12: ...Exercise circuit breaker Connections Check wire connections Make sure they are tight Relief and DrainValve ReliefValve Lift and release the relief valve on the water heater Make certain that the valv...

Page 13: ...Not enough space heat Boiler sized too small Consult chart Slow recovery Circulator head capacity too low T PValve Discharges HotTubs Spas Multiple Showers High Demand Problem Possible Solution Probl...

Page 14: ...the difference in price represented by those required features If the owner pays the price difference for those required features and or to upgrade the size and or other features available on a new re...

Page 15: ...Westinghouse at the phone number stated below 1 774 417 6000 SERVICE LABOR AND SHIPPING COSTS This limited warranty does not extend to any shipping charges delivery expenses or administrative fees in...

Page 16: ...ame Date of Installation Installation Address Product Name Serial Number s Comments Installer s Code Name Installers Phone Number Signed by Installer Signed by Customer IMPORTANT Customer Please only...

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