Kenmore 153.321541, 153.321441, 153.321841, 153.32134 Troubleshooting Guide, Start Up Conditions

Troubleshooting Guide

Start Up Conditions

THERMAL EXPANSION

Watcr supply systems max; bccat_sc of such events as high line pressure, fi"c@cnt cut-olin, the cffacctsol?wascr hammcr among othcrs, havc inst',dled dcviccs such as presst_rc redudng valvcs, check vdvcs, back flow prevcntcrs, ctc,,,m control these 9'pcs of" problems, Whcn thcsc dc_4ccs arc not equipped with an intcrn'al by+pass, and no other measures arc taken, the dc_4ccs cause the _atcr _wstcm to bc dosed, As _atcr is heated, it expands (ther-

mal expansion) and closed _wstcms do not allow for dre cxpan- sion of hcatcd _atcr,

The water within the waer hcaer yank _pands as it is heated and increases the pressure of the vcatcr xTstcm. If the rcheving point of the vcatcr heater's remperature_pressure relief valve is reached, the v0vc will relieve the _ccss prcasure, The tenzperatuee-preasm_e relief"valve is not intended for the comtant m.Jief of thermal

_panslon. This is an unacceptable condition and must bc co> retted,

It is recommended that any devices installed which could crcase a

closed svsrem have a by-pass and/or the s!_stcm have an expan- sion ta6k to relieve tl_c pressure built b_ thermal cxpanslon.

Thermal expansion tanks arc available f}om Sears stores and through the Scars Service Canters. Contact the Ioca.1pltmtbing inspector, water supplier and/or the Sears Service Center for assistance in controlling these situations.

HOT	@
	PRESSURE
	REDUCING
	VALVEWITH
	BgPASS

(2)

PRESSUREGAUGE

WATER

SHUTOFF

RECOMMENDED INSTAIJ_A_ ON

(VERTICAL MOUNITING)

	WATER H EA_ER	FLOOR,CEILING
	COLD WATER	jOISX,ETC.
	INLET FITTIhlC
HOT	COLD	STRAPPING

Thermal Expansion Tank Specifications

Modd Tank Capacity Dimensions in lnchcs Pipc Fitting

Ntmtbcr ln Gallons Diamctcr l.cngdl On Tank

153.33 ] 020	2	8 inchcs		] 2_ inchc*		_" Male
153.3371050	5	]]	inches	]4_inchc*		_"Malc
Expansion	Tank	Sizing	Chart
	Inlcd'	Watcr Hcatcr CapacagT ,Gallons)
Watcr
Expansion	Pressure	30	40	50	66	80
	40psi	2	2	2	5	5
Tank
Capadty	50psi	2	2	2	5	5
Nccdcd	60psi	2	2	5	5	5
	70psi	2	2	5	5	5
	80psi	2	5	5	5	5

*Highast recorded inlct wascr pressure in a 24 hot_r pcriod or regulated _atcr prcssure,

NOTE= Expansion tanks arc prc-chargcd with a 40 psi air

charge, If thc i,olct watcr prcssurc is highcr than 40 psi, thc expansion tanks air pressurc must bc adjustcd to match that

pressure, but must not bc highcr than 80 psi.

(3)

PRESSURE

REDUCING INLET COLD

VALVEWITH WA'_ER

BY-PASS SHUTOFF

@

PRESSUREGAUGE

AL_EPdhlATERECOMMENDED

INSTALLATION

(HORIZONTAL MouEn'ING)

STRANGE SOUNDS

Possiblc noiscs duc to cxpansion and contraction of somc mctal parts during pcrio& of"hcat-up and cool-down do not represcnt harmfialor dangerous conditions,

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