Water Piping - Mixing Valve Usage - American Water Heater POWER VENT GAS Installation And Operating Manual

WATER PIPING - MIXING VALVE USAGE

TEMPERED
POTABLE WATER
DRAIN VALVE
This appliance has been design certifi ed as complying with
ANSI Z21.10.3/CSA 4.3 (latest revision) for water heaters
and is considered suitable for:
Water (Potable) Heating: All models are considered
suitable for water (potable) heating.
The Hybrid water heater is a unique design that it combines
the technology of both the storage tank and tankless type
water heaters. A tankless water heater ensures a fi xed
constant outlet water temperature, this is achieved by
modulating the water fl ow to ensure that this temperature
is maintained. In the Hybrid the water supply is heated
as it fl ows through the heat exchanger over the burners
similar to the tankless water heaters. The heated water is
than stored in the top of the storage tank.
The tank outlet water temperature will be within a maximum
of 5°F (2.8°C) of the display set-point when the unit ends
the call for heat.
If required by local codes or if a higher fi xed temperature
is required, a mixing valve can be installed as shown on
Figure3.
Please note the following:
The system should be installed only with piping that is
suitable for potable (drinkable) water such as copper,
SUGGESTED PIPING
ARRANGEMENT
FOR TOP
CONNECTIONS
SHUT-OFF VALVE
COLD WATER
INLET
THERMAL
EXPANSION
TANK
MIXING
VALVE
(OPTIONAL)
PIPE INSULATION
(RECOMMENDED)
METAL
DRAIN PAN
FIGURE 3
CPVC, PEX or polybutylene. DO NOT use PVC water
piping.
DO NOT use any pumps, valves, or fi ttings that are not
compatible with potable water.
DO NOT use valves that may cause excessive restriction
to water fl ow. Use full fl ow ball or gate valves only.
DO NOT use any lead based solder in potable water
lines. Use appropriate tin-antimony or other equivalent
material.
DO NOT tamper with the gas control/thermostat, igniter,
fl ammable vapor sensor or temperature and pressure
relief valve. Tampering voids all warranties. Only qualifi ed
service technicians should service these components.
DO NOT use with piping that has been treated with
chromates, boiler seal, or other chemicals.
DO NOT add any chemicals to the system piping which
will contaminate the potable water supply.
HOTTER WATER CAN SCALD:
Water heaters are intended to produce hot water. Water
heated to a temperature which will satisfy space heating,
clothes washing, dish washing, and other sanitizing needs
can scald and permanently injure you upon contact. Some
people are more likely to be permanently injured by hot
water than others. These include the elderly, children,
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TEMPERED
POTABLE WATER
TEMPERATURE-
PRESSURE
RELIEF VALVE
DISCHARGE
PIPE (DO NOT
CAP OR PLUG)
6 in.
(15cm)
MAX.
AIR GAP
FLOOR
DRAIN
TO SUITABLE
DRAIN
11