Kenmore 153.33264 manual Closed System/Thermal Expansion, Pmpe y Damage Hazard, Explosion Hazard

			In a closed system use a
			,/thermal	expansion tank
		_r	Cold	Water	I]Pressure	Reducing
			inlet	Valve	HValve with	Bypass
Hot Water,.._
Outlet	=:_	[_ _Cold	Water	Supply/_
	H_H	to	Fixture		SupplyMain_Water

Metal Drain-..,

Pan 1-3/4"

Depth Max.

Typical water piping	installation
FIGURE 23.
_,_	Mixed Water
	To Fixtures
Unmixed
Hot Water
	_]_,_	Cold Water
Hot	_	Inlet

Outlet

(Set To 120 oF)

Mixing Valve

Follow The Mixing Valve

Manufacturer's Instructions

FIGURE 24.

Please note the following:

•The system should be installed only with piping that is suitable for potable (drinkable) water such as copper, CPVC, or polybutylene. This water heater must not be installed using iron piping or PVC water piping.

•Use only pumps, valves, or fittings that are compatible with potable water.

•It is recommend that only full flow ball or gate valves are used in water piping installations. The use of valves that may cause excessive restriction to water flow is not recommended.

•Use only 95/5 tin-antimony or other equivalent solder. Any lead based solder must not be used.

•Piping that has been treated with chromates, boiler seal, or other chemicals must not be used.

•Chemicals that may contaminate the potable water supply must not be added to the piping system.

Closed System/Thermal Expansion

Pmpe_y Damage Hazard

•All water heaters eventually leak

•Do notinstallwithoutadequate drainage.

As water is heated, it expands (thermal expansion). In a closed system, the volume of water will grow. As the volume of water grows, there will be a corresponding increase in water pressure due to thermal expansion. Thermal expansion can cause premature tank failure (leakage). This type of failure is not covered under the limited warranty. Thermal expansion can also cause intermittent temperature-pressure relief valve operation: water discharged from the valve due to excessive pressure build up. The temperature-pressure relief valve is not intended for the constant relief of thermal expansion. This condition is not covered under the limited warranty.

A properly-sized thermal expansion tank should be installed on all closed systems to control the harmful effects of thermal expansion. Contact a plumbing service agency or your retail supplier regarding the installation of a thermal expansion tank.

Temperature and Pressure Relief Valve

Explosion Hazard

Temperature-pressure relief valve must comply with ANSI Z21.22-CSA 4.4 and ASME code.

• Properly sized temperature- pressure relief valve must be installed in opening provided.

• Can result in overheating and excessive tank pressure.

• Can cause serious injury or death.

Temperature and

Pressure Relief Valve

(T&P)

Discharge line 3/4" Min.

Do not cap or plug.

Metal Drain Pan

FIGURE 25.

22