Kenmore 153.335862 Troubleshooting Guide, 1153.33i0505 i Hiochesil inches Ma,e, 0psi, Sizing

Troubleshooting Guide

Start Up Conditions

THERMAL EXPANSION

Water supply systems may, because of such events as high line pressure, frequent cut-offs, the effects of water hammer among others, have installed devices such as pressure reducing valves,

check valves, back flowpreventers, etc...to control these types of problems. When these devices are not equipped with an internal by-pass, and no other measures are taken, the devices cause the water system to be closed. As water is heated, it expands (ther- mal expansion) and closed systems do not allow for the expan- sion of heated water.

The water within the water heater tank expands as it is heated and

increases the pressure of the water system. If the relieving point of the water heater s temperature-pressure relief valve is reached, the

valve will relieve the excess pressure. The temperature-pressure relief valve is not intended for the constant relief of thermal

expansion. This is an unacceptable condition and must be cor- rected.

It is recommended that any devices installed which could create a

closed system have a by-pass and/or the system have an expan- sion tank to relieve the pressure built by thermal expansion.

Thermal expansion tanks are available from Sears stores and

through the Sears Service Centers. Contact the local plumbing inspector, water supplier and/or the Sears Service Center for assistance in controlling these situations.

HOT	COLD WATER	HEATER	(3)
	• COLD	WATER	PRESSURE
	INLET	FITTING	REDUCING
			VALVE WITH
			BY-PASS

(i)

EXPANSION

TANK

	(z)
	PRESSUREGAUGE
	WATER
	SHUTOFF
	RECOMMENDED INSTALLATION
i_,*ii=====,_1	(VERTICAL MOUNTING)

	WATER HEATER	FLOOR, CEILING
	COLD WATER	JOIST, ETC.
	INLET FITTING
HOT	COLD	STRAPPING

Thermal Expansion Tank Specifications

Model	i Tank CaDac ty		Dimension,s in Inches		Pipe Fitting
[ Number	_	In Gallons	!Diameter"	Length	On Tank
1153.3310207		2	• 8inches	712_incbes	_;'Male

1153.33i0505 i Hiochesil<inches Ma,e

Expansion Tank		Sizing		Chart
	i Inlet*		Water Heater			Capacity	(Gallons)
	I
	Water
Expansion	Pressure	l	30	i	40 '	50	66
	40psi		2		2	2	5
Tank				i
Capacity	0psi	[	2	iT			5	1
Needed
	76ps_	_	2	!	2	5	5	/ 5
	80psi	i	2		5	5 :	5	5

*Highest recorded inlet water pressure m a 24 hour period or regulated water pressure.

NOTE: Expansion tanks are we-chargedwith a 40 psi air

charge. If the inlet water pressure is hi_her than 40 psi, the expansion tank's air pressure must be adjusted to match that

pressure, but must not be higher than 80 psi.

O)

	PRESSURE
	REDUCING	INLET COLD
	VALVEWITH	WATER
(1)	BY-PASS	SHUTOFF
EXPANSION

PRESSUREGAUGE

ALTERNATE RECOMMENDED

INSTALLATION

(HORIZONTAL MOUNTING)

STRANGE SOUNDS

Possible noises due to expansion and contraction of some metal parts during periods of heat-up and cool-down do not represent harmful or dangerous conditions.

Condensation causes sizzling and popping with the burner area

during heating and cooling periods and should be considered

normah See "Condensation" section.

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