Rheem 72V20-1 manual

W ater Heaters Electric For Manufactured Housing (Mobile Home) The purpose of this manual is twofold: one, to provide the installer with the basic directions and recommendations for the proper installation and adjustment of the water heater; and two, for the owner–operator , to explain the features, operation, safety precautions, maintenance and [...]

Safety Information Safety Precautions . . . . . . 3, 4 Installation Instructions Location . . . . . . . . . . . . . . . . 5 W ater Connections . . . . . . . . 6 Electrical Connections . . . . . 9 Operating Instructions Safety Controls . . . . . . . . . . 12 W ater T emperature . . . . . . . 13 Care and Cleaning Draining . . . . . . . . . . . . . . [...]

Time/T emperatur e Relationship in Scalds T emperature Time T o Produce a Serious Burn 120°F More than 5 minutes 125°F 1 1 / 2 to 2 minutes 130°F About 30 seconds 135°F About 10 seconds 140°F Less than 5 seconds 145°F Less than 3 seconds 150°F About 1 1 / 2 seconds 155°F About 1 second T able courtesy of Shriners Burn Institute The chart sh[...]

4 IMPOR T ANT SAFETY INFORMA TION. READ ALL INSTRUCTIONS BEFORE USING . W ARNING! For your safety , the information in this manual must be followed to minimize the risk of fire or explosion, electric shock, or to prevent pr operty damage, personal injury , or loss of life. Be sure to r ead and understand the entire Use and Car e Manual before attem[...]

Installing the water heater . The location chosen for the water heater must take into consideration the following: Local Installation Regulations The installation of this water heater must be in accordance with the Manufactured Home Construction and Safety Standard (T itle 24, CFR; Part 3280) and the following instructions; and local codes governin[...]

Installing the water heater . 6 Thermal Expansion W ater Supply Connections NOTICE: Do not apply heat to the HOT or COLD water connections. If sweat connections are used, sweat tubing to adapter before fitting adapter to the water connections on heater . Any heat applied to the water supply fittings will permanently damage the dip tube and/or heat [...]

W ARNING: The pr essure rating of the relief valve must not exceed 150 PSI, the maximum working pressur e of the water heater as marked on the rating plate. A new combination temperatur e and pressur e relief valve, complying with the S tandard for Relief V alves and Automatic Gas Shut-Off Devices for Hot W ater Supply Systems, ANSI Z21.22, is supp[...]

8 Installing the water heater . T ypical Side Connect Installation Anode T o electrical distribution panel Electrical junction box (use only copper conductors) T emperature & pressur e relief valve Union T o cold water supply Relief valve discharge line. Directed to under side of home. Union Hot water outlet to fixtures Jacket access panel Shut[...]

9 Branch Cir cuit Sizing and W ire Size Guide T otal W ater Recommended Over Curr ent Pr otection Copper Wir e Size A WG Based Heater W attage (fuse or circuit breaker amperage rating) on N.E.C. T able 310-16 (75°C) 120V 208V 240V 120V 208V 240V 1500* 20 15 15 12 14 14 1700 20 15 15 12 14 14 2000 25 15 15 10 14 14 2500 30 15 15 10 14 14 3000 35 20[...]

10 Installing the water heater . For increased energy ef ficiency , some water heaters have been supplied with two 24” sections of pipe insulation. Please install the insulation, according to the illustrations above, that best meets your requirements. R E L I E F V A L V E CO LD HOT T ypical vertical piping arrangement R E L I E F V A L V E COL D[...]

Heat T rap For increased energy ef ficiency , some water heaters have been supplied with factory installed internal or external heat traps in the hot outlet and cold water inlet openings. NOTICE: Do not apply heat to the HOT or COLD water connections. If sweat connections are used, sweat tubing to adapter before fitting adapter to the water connect[...]

12 Safety Pr ecautions Do turn off power to water heater if it has been subjected to over heating, fire, flood, physical damage. Do Not turn on water heater unless it is filled with water . Do Not turn on water heater if cold water supply shut-off valve is closed. If there is any difficulty in understanding or following the Operating Instructions o[...]

13 If adjustment is necessary… T urn off the power to the water heater . Remove the jacket access panel(s) and insulation exposing the thermostat(s). The thermostat protective cover(s) should not be removed. Using a small screwdriver , set the thermostat(s) dial pointer(s) to the desired temperature. Replace the insulation and jacket access panel[...]

Routine Pr eventative Maintenance Properly maintained, your water heater will provide years of dependable trouble- free service. It is suggested that a routine preventive maintenance program be established and followed by the user . It is further recommended that a periodic inspection of the operating controls, heating element and wiring should be [...]

15 V acation and Extended Shut-Down If the water heater is to remain idle for an extended period of time, the power and water to the appliance should be turned off to conserve energy and prevent a build-up of dangerous hydrogen gas. The water heater and piping should be drained if they might be subjected to freezing temperatures. After a long shut-[...]

Problem Possible Causes What T o Do Rumbling noise W ater conditions in your ● Remove and clean the heating elements. home caused a build up of scale or mineral deposits on the heating elements. Relief valve Pressure build up caused ● This is an unacceptable condition and must be producing popping by thermal expansion corrected. Contact the wat[...]

17 Replacement Parts. For 20–52 gallon models with single or double elements. T UR N O F F PO W E R B E F O R E SE R V IC IN G 1 40 1 3 0 1 2 0 11 0 1 0 0 9 0 T H E R M - O - D I S C R E S E T R E S E T 1 40 1 3 0 1 2 0 1 1 0 1 0 0 9 0 T H E R M - O - D I S C T U R N O F F P O W E R B E F O R E S E R V IC IN G Instructions For Placing a Parts Ord[...]

18 Cavity Insert Instructions The following instructions ar e intended for qualified service personnel ONL Y , and should only be done when necessary . In order to replace the thermostat or heating element, remove the cavity insert crossbar by following the instructions below: T urn off the power to the water heater . Remove the jacket access panel[...]

19 IF YOU NEED SER VICE 1. Should you have any questions about your new water heater , or if it requires adjustment, repair , or routine maintenance, it is suggested that you first contact your installer , plumbing contractor or previously agreed upon service agency . In the event the firm has moved, or is unavailable, refer to the telephone direct[...]

20 Grounding conductor may be required. Refer to W iring Section of Manual * This water heater is factory equipped for two (2) wire connection to electrical power . For use with "off-peak" meter (timer) remov e wire nut from red and black leads and connect to "off-peak" meter (timer). ! W iring Diagrams — Therm-O-Disc Thermost[...]