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Minimum clearances from combustible materials are stated on the data
plate located on the front of the water heater. Standard clearances
are 0” (0 cm) at the sides and rear, 0” (0 cm) from the front, and 0” (0
cm) from the top. If the clearances from combustible material stated
on the water heater differ from the standard clearances, install the
water heater according to the clearances stated on the water heater.
Adequate clearance for inspection and service should be considered
before installation. A minimum of 24” (61 cm) of front clearance and 4”
(10.2 cm) on each side should be provided for access to replaceable
and/or serviceable parts such as thermostats, drain valve, condensate
drain, temperature-pressure relief valve, and the vent connection
(exhaust elbow).
Figure 6 may be used as a reference guide to locate the specific
clearance locations. When installing the water heater, consideration
must be given to proper location. The location selected should be
as close to the wall as practicable and as centralized with the water
piping system as possible.
CEILING
FRONT VIEW
0" MIN.
0" MIN.
*4" MIN.
*For service access
LEFT
WALL
RIGHT
WALL
TOP VIEW
OF CLOSET
WITHOUT DOOR
WATER
HEATER
0" MIN.
0" MIN.
*24" MIN. (61 cm)
TOP VIEW
OF CLOSET
WITHOUT DOOR
WATER
HEATER
Figure 6: MINIMUM CLEARANCE LOCATIONS
INSULATION BLANKETS
Insulation blankets are available to the general public for external use
on gas water heaters but are not necessary with these products. The
purpose of an insulation blanket is to reduce the standby heat loss
encountered with storage tank heaters. Your water heater meets or
exceeds the Energy Policy Act standards with respect to insulation and
standby loss requirements, making an insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this heater, you
should follow these instructions (For identification of components
mentioned below. See Figures 1, 2, 3 and 4. Failure to follow these
instructions can restrict the air flow required for proper combustion,
potentially resulting in fire, asphyxiation, serious personal injury or death.
• Do not cover the control system LCD on top of the water heater.
• Do not cover the outer door, thermostat or temperature-pressure
relief valve.
• Do not cover the instruction manual. Keep it on the side of the
water heater or nearby for future reference.
• Do obtain new warning and instruction labels from the manufacturer
for placement on the blanket directly over the existing labels.
• Do inspect the insulation blanket frequently to make certain it
does not sag, thereby obstructing combustion air flow.
COMBUSTION AIR AND VENTILATION
A gas water heater cannot operate properly without the correct
amount of air for combustion. Never obstruct the flow of ventilation
air. If you have any doubts or questions at all, call your gas supplier.
Failure to provide the proper amount of combustion air can result
in a fire or explosion and cause death, serious bodily injury, or
property damage.
Figure 7: COMBUSTION AIR AND VENTILATION
It is imperative that the water heater(s) be installed direct vent so
that all air for combustion and ventilation is taken from outdoors.
Propellants of aerosol sprays and volatile compounds, (cleaners,
chlorine based chemicals, refrigerants, etc.) in addition to being
highly flammable in many cases, will also react to form corrosive
acids when exposed to the combustion products of the water heater.
The results can be hazardous, and also cause product failure. Air
for combustion and ventilation must not come from a corrosive
atmosphere. Any failure due to corrosive elements in the atmosphere
is excluded from warranty coverage.
CORROSION AND WATER QUALITY
Water quality will vary from location to location and may contain
contaminates that may reduce the life or performance of the water heater.
Contaminates which can reduce the life or performance of the water
heater if present in high quantities include those which contribute to
hardness (dissolved minerals such as sodium, calcium and magnesium);
plus chlorides and sulfates. Additionally, water that is too acidic or basic
(measured as pH) can reduce the life of the water heater. Water treatment
systems (such as water softeners for hardness) should be used and
maintained properly if the contaminate levels exceed the following:
Warranty is void in applications which exceed the
water quality requirements listed below.
Total Hardness: 12 grains per gal. (205 mg/liter) max.
Chloride: 200 mg/liter max.
pH: 6.5-8.0
Alkalinity: 200 mg/liter max.