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