Kenmore 32184 Owners Manual - Page 21

Troubleshooting Start Up Conditions Guide 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 (thermal expansion) and closed _wstcms do not allow for dre cxpansion 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.Jiefof thermal _panslon. This is an unacceptable condition and must bc co> retted, It is recommended that any devices installed which could crcase a csiloonsedta6svksrteom rhealiveevea tbl_yc-pparsesssaunrde/obruitlhte bs_!_sthtcemrmhaalvecxanpanexslpoann.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. Thermal Expansion Tank Specifications Modd Ntmtbcr Tank Capacity Dimensions in lnchcs Pipc Fitting ln Gallons Diamctcr l.cngdl On Tank 153.33 ] 020 2 8 inchcs ] 2_ inchc* _" Male 153.3371050 5 ]] inches ]4_inchc* _"Malc HOT WATER H EA_ER COLD WATER INLET FITTIhlC HOT COLD @ PRESSURE REDUCING VALVE WITH BgPASS (2) PRESSURE GAUGE WATER SHUTOFF RECOMMENDED INSTAIJ_A_ ON (VERTICAL MOUNITING) FLOOR,CEILING jOISX,ETC. STRAPPING (3) PRESSURE REDUCING VALVE WITH BY-PASS INLET COLD WA'_E R SHUTOFF Expansion Tank Sizing Chart Expansion Tank Capadty Nccdcd Inlcd' Watcr Pressure 40psi 50psi 60psi 70psi 80psi Watcr Hcatcr CapacagT ,Gallons) 30 40 50 66 80 2 2 2 5 5 2 2 2 5 5 2 2 5 5 5 2 2 5 5 5 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. @ 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, 271