State GPG 81 370NEA - Manual (Page 11)

11
is to reduce the standby heat loss encountered with storage
tank heaters. The water heaters covered by this manual meet
or exceed the energy Policy Act standards with respect to
insulation and standby heat loss requirements, making an
insulation blanket unnecessary.
Should you choose to apply an insulation blanket to this
heater, you should follow these instructions. See the
Features and Components section of this manual for
identification of components mentioned below. 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 apply insulation to the top of the water heater, as
this will interfere with safe operation of the draft control.
• do not cover the gas control valve, thermostat or the
Temperature-Pressure relief Valve.
• do not allow insulation to come within 2” (5 cm) of the
burners, to prevent blockage of combustion air flow to the
burners.
• 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.
hard water
Where hard water conditions exist, water softening or the
threshold type of water treatment is recommended. This will
protect the dishwashers, coffee urns, water heaters, water piping
and other equipment.
See the maintenance Section in this manual for sediment and
lime scale removal procedures.
circulation pumps
A circulating pump is used when a system requires a circulating
loop or there is a storage tank used in conjunction with the water
heater. See Water Piping Diagrams in this manual for installation
location of circulating pumps.
See the Circulation Pump Wiring Diagrams in this manual for
electrical hookup information. Install in accordance with the
current edition of the National electrical Code, NFPA 70 or the
Canadian electrical Code, CSA C22.1.
All-bronze circulating pumps are recommended for used with
commercial water heaters.
Some circulating pumps are manufactured with sealed bearings
and do not require further lubrication. Some circulating pumps
must be periodically oiled. refer to the pump manufacturer’s
instructions for lubrication requirements.
figure 7.
insulation blanket
Do not obstruct water heater air intake
with insulating blanket.
Gas and carbon monoxide detectors
are available.
Install water heater in accordance with
the instruction manual.
Breathing carbon monoxide can cause brain damage or
death. Always read and understand instruction manual.
Breathing Hazard - Carbon Monoxide Gas
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