Leveling; Clearances For Service Access; Residential Garage And Closet Installations - Westinghouse WGRT 150 Series Installation Start-Up Maintenance Parts

Do not introduce toxic chemicals, such as antifreeze or water heater treatments, into the water heater or any piping meant for potable
water purposes.
Ensure that all piping and components connected to the water heater are suitable for potable water applications.
Do not use this water heater for space heating applications.
Circulators suitable for DHW applications must be used.
6. Clean and flush system when reinstalling a water heater.
NOTE: When installing in a zero clearance location, it may not be possible to read or view some product labeling. It is recommended to
make note of the water heater model and serial number.
B. LEVELING
In order for the condensate to properly flow out of the collection system, the water heater must be installed level.
C. CLEARANCES FOR SERVICE ACCESS
See Table 9 for recommended service clearances. If these minimum clearances are not provided, it may not be possible to service the
water heater without removing it from the space.
Space must be provided with combustion/ventilation air openings correctly sized for all other appliances located in the same space as
the water heater. The water heater cover must be securely fastened to prevent it from drawing air from the water heater room. This is
particularly important if the water heater is in a room with other appliances. Failure to comply with the above could result in substantial
property damage, severe personal injury, or death.
Installation Clearances from Non-Combustibles / Combustibles
Top
Back
Front
Right Side
Left Side
Bottom
Table 9 – Minimum Installation and Service Clearances
NOTE: The exhaust vent piping for this direct vented appliance is approved for zero clearance to combustible construction.
NOTE: If the water heater is installed in a narrow space or corner, ensure that there is sufficient space for service and maintenance
access. There should be easy access to the gas and water lines and internal components for future service. A combustible door or
removable panel is acceptable front clearance.
D. RESIDENTIAL GARAGE AND CLOSET INSTALLATIONS
Check with your local Authority Having Jurisdiction for requirements when installing water heater in a garage or closet. Please read the
entire manual before attempting installation. Failure to properly take factors such as venting, piping, condensate removal, and wiring
into account before installation could result in wasted time, money, and possible property damage and personal injury.
PRECAUTIONS
If the water heater is located in a residential garage, it should be installed per the latest edition of the National Fuel Gas Code, ANSI
Z223.1, and CGA-B149 Installation Code in Canada.

Mount the bottom of the water heater a minimum of 18" above the floor of the garage, to ensure the burner and ignition
devices are well off the floor.

Locate or protect the water heater so it cannot be damaged by a moving vehicle.
MINIMUM CLEARANCES
9 in. (228.6 mm)
5/8 in. (15.9 mm)
6 in. (152.4 mm)
3 in. (76.2 mm)
12 in. (304.8 mm)
Recommended Service and Proper Operation Clearances
9 in. (228.6 mm)
5/8 in. (15.9 mm)
24 in. (609.6 mm) or more (Front of Water heater)
(A combustible door or removable panel is acceptable front
clearance.)
3 in. (76.2 mm)
12 in. (304.8 mm)
16
WHL-004 REV. 5.26.17