Improper Combustion; Gas; When Servicing The Water Heating System; Water Chemistry Requirements - Westinghouse Premium WGRT 199 Series Installation, Start-Up, Maintenance, Parts, Warranty

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This water heater has been designed to heat potable water ONLY.
Using this water heater to heat non-potable fluid WILL VOID product
warranty, and could result in property damage, personal injury, or
death.
Do not use this water heater for anything other than its intended
purpose (as described in this manual). Doing so could result in
property damage and WILL VOID product warranty.
B. Improper Combustion
Do not obstruct the flow of combustion and ventilating air. Adequate
air is necessary for safe operation. Failure to keep the exhaust vent
and combustion air intake clear of ice, snow, or other debris could
result in property damage, serious personal injury, or death.
C. Gas
Should overheating or gas supply fail to shut off, turn off the manual
gas control valve to the water heater.
D. When Servicing the Water Heating System
Be sure to disconnect electrical power before opening water heater
cabinet or performing service. Label all wires while performing
service to ensure proper re-wiring of the water heater. Wiring errors
can cause improper or dangerous operation. Failure to do so could
result in an electrical shock, improper water heater operation,
property damage, serious personal injury, or death.
• To avoid electric shock, disconnect electrical supply before
performing maintenance.
• To avoid severe burns, allow water heater and associated
equipment to cool before servicing.
• Do not use petroleum-based cleaning or sealing compounds
in a water heating system. Gaskets and seals in the system may
be damaged. This can result in substantial property damage.
• Do not use "homemade cures" or "patent medicines". Damage
to the water heater, substantial property damage, and/or
serious personal injury may result.
• Always verify proper operation after servicing the water heater.
NOTE: When inquiring about service or troubleshooting, reference the
model and serial numbers from the water heater rating label.
E. Water Chemistry Requirements
Chemical imbalance of the water supply may affect efficiency and
cause severe damage to the appliance and associated equipment.
Water quality must be professionally analyzed to determine whether
it is necessary to treat the water. Various solutions are available to
adjust water quality. Adverse water quality will affect the reliability
of the system. In addition, operating temperatures above 135
accelerate the build-up of lime scale and possibly shorten appliance
service life. Failure of an appliance due to lime scale build-up, low pH,
or other chemical imbalance IS NOT covered by the warranty.
The water must be potable, free of corrosive chemicals, sand, dirt,
and other contaminates. It is up to the installer to ensure the water
does not contain corrosive chemicals or elements that can damage
the heat exchanger. Potable water is defined as drinkable water
supplied from utility or well water in compliance with EPA secondary
maximum contaminant levels (40 CFR Part 143.3). If the water contains
whl-004 Rev. 000 Rel. 013 Date 5.1.18
contaminants higher than outlined by the EPA, water treatment is
recommended and additional, more frequent maintenance may be
required. See Table 1.
If you suspect that your water is contaminated in any way,
discontinue use of the appliance and contact an authorized
technician or licensed professional.
Contaminant
Total Hardness
(Commercial Use - Below 140
water temperature)
Total Hardness
(Commercial Use - Above 140
water temperature)
Aluminum
Chloride
Copper
Iron
Manganese
pH
Sulfate
Total Dissolved Solids (TDS)
Zinc
Dissolved Carbon Dioxide (CO2)
Table 1 - Water Quality Specifications
F. Freeze Protection
Consider piping and installation when determining heater
location. Damages resulting from incorrect installation or from
use of products not approved by Westinghouse ARE NOT covered
by warranty.
NEVER use any toxic chemical, including automotive, standard
glycol antifreeze, or ethylene glycol made for hydronic (non-
potable) systems. These chemicals can attack gaskets and seals in
water systems, are poisonous if consumed, and can cause personal
injury or death.
The water heater control is equipped with freeze protection that
activates based on internal water temperature. See the table below
for details on freeze protection operation.
NOTE: Freeze protection will not be active if the water heater loses
power.
System Freeze
Protection
(Activates
If control detects water temperature of 41
Based on
below, it turns the ceramic heater on to meet a target
Internal Water
temperature of 59
Temperature)
o
F will
Table 2 - Freeze Protection Detail
Maximum Allowable Level
200 mg/l
o
F
(12 grains/gallon)
120 mg/l
o
F
(7 grains/gallon)
0.05 to 0.2 mg/l or PPM
100 mg/l or PPM
1 mg/l or PPM
0.3 mg/l or PPM
0.05 mg/l or PPM
6.5 - 8.5
205 mg/l or PPM
500 mg/l or PPM
5 mg/l or PPM
15 mg/l or PPM
Freeze Protection Operation
o
F (5
o o
F (15 C).
o
C) and