Leveling; Clearances For Service Access; Residential Garage And Closet Installations; Exhaust Vent And Intake Pipe - Westinghouse Premium WGRT 199 Series Installation, Start-Up, Maintenance, Parts, Warranty

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B. Leveling
In order for the condensate to properly flow out of the collection
system, the area where you locate the heater must be level. Location
must also fully support the weight of the filled water heater.
C. Clearances for Service Access
See Table 6 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.
The space must be provided with combustion / ventilation air
openings correctly sized for all other appliances located in the same
space as the heater. The heater cover must be securely fastened to
prevent the heater from drawing air from the heater room. This is
particularly important if the heater is in a room with other appliances.
Failure to comply with the above warnings could result in substantial
property damage, severe personal injury, or death.
Minimum Clearances
Installation Clearances from Non-
Combustibles / Combustibles
Top
Back
Bottom
Front 6" (152.4 mm)
Right Side
Left Side
Table 6 - Minimum Installation and Service Clearances
NOTE: For closet installations, a combustible door or removable
panel is acceptable front clearance. A 3" minimum clearance must be
provided from the appliance front cover to the removable panel or
combustible door.
NOTE: If you do not provide the minimum clearances shown in Table
6 it might not be possible to service the heater without removing it
from the space.
MINIMUM CLEARANCES FROM COMBUSTIBLE MATERIALS
• Hot water pipes - at least 1" from combustible materials
• Exhaust vent pipe - at least 1" from combustible materials
All water heaters eventually leak. It is recommended to install a catch
pan beneath the water heater. This catch pan should be sized with a
maximum depth of 2", and a minimum diameter 2" greater than the
diameter of the water heater. The catch pan should empty into an
open drain line. This drain line should be 3/4" ID minimum, piped
to an open drain. Failure to follow these instructions could result
in property damage. Such damages ARE NOT covered by product
warranty.
Always take future maintenance into consideration when locating
the water heater. If the water heater is located in an installation
location with limited clearances, it may be necessary to remove the
water heater from the space to perform maintenance. Failure to
consider maintenance when determining installation location could
result in property damage.
whl-004 Rev. 000 Rel. 013 Date 5.1.18
Recommended Service
and Proper Operation
Clearances
9" (228.6 mm)
0" (0 mm)
12" (304.8 mm)
24" (60.9 cm) or more
3" (76.2 mm)
D. Residential Garage and Closet Installations
Check with your local Authority Having Jurisdiction for
requirements when installing the 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 heater is located in a residential garage, per ANSI Z223.1:
• 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.
The space must be provided with correctly sized combustion/
ventilation air openings for all other appliances located in the
space with the water heater. For power venting installations using
room air for combustion, refer to the venting section, this manual,
for descriptions of confined and unconfined spaces. Do not install
the water heater in an attic. Failure to comply with these warnings
could result in substantial property damage, severe personal
injury, or death.
E. Exhaust Vent and Intake Pipe
The heater is rated Category IV (pressurized vent, likely to form
condensate in the vent) and requires a special vent system designed
for pressurized venting.
NOTE: The venting options described here (and further detailed
in the Venting section, this manual) are the lone venting options
approved for this water heater. Failure to vent the water heater
in accordance with the provided venting instructions will void
the warranty.
Failure to vent the water heater properly will result in serious
personal injury or death.
Do not attempt to vent this water heater by any means other than
those described in this manual. Doing so will void the warranty
and may result in severe personal injury or death.
Vents must be properly supported. Heater exhaust and intake
connections are not designed to carry heavy weight. Vent support
brackets must be within 1' of the heater and the balance at 4'
intervals. Heater must be readily accessible for visual inspection
for first 3' from the water heater. Failure to properly support vents
could result in property damage, severe personal injury, or death.
The exhaust discharged by this water heater may be very hot.
Avoid touching or other direct contact with the exhaust gases of
the vent termination assembly. Doing so could result in severe
personal injury or death.

1. Direct Vent of Exhaust and Intake

If installing a direct vent option, combustion air must be drawn
from the outdoors directly into the water heater intake and exhaust
must terminate outdoors. There are three basic direct vent options
detailed in this manual: 1. Side Wall Venting, 2. Roof Venting, and 3.
Unbalanced Venting.
Be sure to locate the heater such that the exhaust vent and intake
piping can be routed through the building and properly terminated.