Use & Care Manual With Installation Instructions for the Installer Light Duty Commercial Electric Water Heaters Double Element Models, 75, 85, 105 Gallon 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 troubleshooting of the water heater.
Safety Information FOR YOUR RECORDS Safety Precautions. . . . . . . 3, 4 Write the model, serial numbers, and installation details on the back cover of the manual. Installation Instructions Location. . . . . . . . . . . . . . . . . . 5 Water Connections . . . . . . . . . 8 This information is located on the rating plate (silver label) on the unit. Staple sales slip or cancelled check here. Proof of the original purchase date is needed to obtain service under the warranty. Electrical Connections. .
IMPORTANT SAFETY INFORMATION. READ ALL INSTRUCTIONS BEFORE USING. DANGER! WATER TEMPERATURE SETTING Safety and energy conservation are factors to be considered when selecting the water temperature setting of water heater’s thermostat. Water temperatures above 125°F (51°C) can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below. This label is also located on the water heater near the thermostat access panel.
IMPORTANT SAFETY INFORMATION. READ ALL INSTRUCTIONS BEFORE USING. WARNING! For your safety, the information in this manual must be followed to minimize the risk of fire or explosion, electric shock, or to prevent property damage, personal injury, or loss of life. Be sure to read and understand the entire Use and Care Manual before attempting to install or operate this water heater. It may save you time and cost. Pay particular attention to the Safety Instructions.
Installing the water heater. Local Installation Regulations This water heater must be installed in accordance with these instructions, local codes, utility codes, utility company requirements or, in the absence of local codes, the latest edition of the National Electrical Code. It is available from some local libraries or can be purchased from the National Fire Protection Association, Batterymarch Park, Quincy, MA 02269 as booklet ANSI/NFPA 70.
Installing the water heater. Thermal Expansion Determine if a check valve exists in the inlet water line. Check with your local water utility. It may have been installed in the cold water line as a separate back flow preventer, or it may be part of a pressure reducing valve, water meter or water softener. A check valve located in the cold water inlet line can cause what is referred to as a “closed water system”.
A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves for Hot Water Supply Systems, ANSI Z21.22, is supplied and must be installed in the opening provided and marked for the purpose on the water heater. No valve of any type should be installed between the relief valve and the tank. Local codes shall govern the installation of relief valves.
Installing the water heater. Water Supply Connections NOTICE: DO NOT attempt to turn any fitting connected to the water heater union hex nuts that are tightened. NOTICE: The hex nut connections on the units use rubber seal rings to provide the water tight seal. DO NOT use pipe sealant on this joint. DO NOT torque the union hex nuts to over 35 ft-lbs when reinstalling the components.
Typical Installation Temperature & Pressure Relief Valve Pre-solder 12" minimum stub pipes before installing to unit. Support the relief valve drain pipe using metal strapping or wire fastened to the structure overhead Cold Inlet Shut Off Hot Water Outlet Heat Trap 6" Minimum Seal Ring (Inside nut) Hex Union Nut (Relief Valve) Top of Water Heater Junction Box Union (The addition of a union at this point will help in the replacement of the T & P Relief Valve should the need arise.
Installing the water heater. Electrical Connections DO NOT turn on the electrical supply or operate this water heater unless it is completely full of water. A separate branch circuit with copper conductors, over current protective device and suitable disconnecting means must be provided by a qualified electrician. All wiring must conform to local codes or latest edition of National Electrical Code ANSI/NFPA 70. Canadian models must conform to local codes or latest edition of Canadian Electrical Code.
Branch Circuit Sizing and Wire Size Guide Single Phase Wiring Total Water Heater Wattage 3,000 3,800 4,500 Recommended Over Current Protection Copper (fuse or circuit breaker amperage rating) 240V 20 20 25 Wire Size AWG Based on N.E.C. Table 310-16 (75°C) 240V 12 12 10 ! DANGER: Elements should only be replaced with an element of the same power rating that was factory installed, and corresponds to the rating label on the unit.
Installing the water heater. Insulation Blankets ! WARNING: If local codes require external application of insulation blanket kits the manufacturer’s instructions included with the kit must be carefully followed. Insulation blankets, available to the general public, for external use on electric water heaters are not necessary. The purpose of an insulation blanket is to reduce the standby heat loss encountered with storage tank heaters.
Installation Checklist A. Water Heater Location ❑ Close to area of heated water demand. ❑ Indoors and protected from freezing temperatures. ❑ Area free of flammable vapors. ❑ Provisions made to protect area from water damage. ❑ Sufficient room to service heater. B. Water Supply ❑ Water heater completely filled with water. ❑ Air purged from water heater and piping. ❑ Water connections tight and free of leaks. C.
Operating the water heater. Safety Precautions o turn off power to water heater if D it has been subjected to over heating, fire, flood, physical damage. O NOT turn on water heater unless D it is filled with water. O NOT turn on water heater if cold D water supply shut-off valve is closed. there is any difficulty in If understanding or following the Operating Instructions or the Care and Cleaning section, it is recommended that a qualified person or serviceman perform the work.
If adjustment is necessary… WARNING: If the water heater has been subjected to fire, flood, or physical damage, turn off power to water heater, and DO NOT operate the water heater again until it has been checked by a qualified service technician. NOTICE: Do not use this appliance if any part has been under water. Immediately call a qualified installer or service agency to replace a flooded water heater. DO NOT attempt to repair the unit! It must be replaced.
Care and cleaning of the water heater. Draining the Water Heater NOTICE: Additional instructions for draining the unit are located on the water heater. Please reference the "To Fill the Water Heater" section (see page 8) for instructions on how to refill the unit. Shut off power to the water heater. O pen a hot water faucet nearest the water heater. Run water until cold. urn off the cold water supply to T the water heater. Leave the hot water faucet open.
Before You Call For Service… Troubleshooting Tips Save time and money! Review the chart on this page first and you may not need to call for service. Problem Possible Causes Rumbling noise Water conditions in your home caused R emove and clean the heating elements. Contact a qualified service technician. a build up of scale or mineral deposits on the heating elements. Relief valve producing popping noise or draining Pressure build up caused by thermal expansion in a closed system.
Replacement Parts. Key No.
Replacement Parts. 75 - 85 - 105 gallon models. 5 1 4 3 2 6 7 8 9 10 11 ......... . 13 14 17 13 22 16 15 18 19 16 15 20 21 17 12 ........... .....
Element Replacement Instructions 1. Turn off power to the unit. ! DANGER: Make certain power to the water heater is “OFF” before removing any jacket access panel for any reason. Failure to do so could result in property damage, bodily injury, or death. 2. O pen a hot water faucet and allow water to flow until the water is cold. 3. E mpty the water out of the unit by following the instructions given in the “Draining the Water Heater” section (see page 16) of this manual. 4.
LIMITED WARRANTY Marathon Electric Water Heaters EXCLUSIVE WARRANTY – LIMITATION OF LIABILITY This Limited Warranty is the only Warranty for this unit given by Rheem Sales Co. Inc., a subsidiary of Rheem Manufacturing Company. No one is authorized to make any other warranties on our behalf. ANY IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE APPLICABLE WARRANTY PERIODS SPECIFIED PREVIOUSLY.
APPLICABLE WARRANTY PERIODS Category Application • O wned by the original purchaser with proof of purchase • A nd Water heater is registered online within 90 days of the installation date • T he original purchaser does not have proof of purchase; or ome is not owned by the original purchaser or Single family • H dwelling • I nstalled in the Caribbean Islands (except Cuba) In accordance with applicable US law, this product must not be sold or re-sold into Cuba or to the Cuban government or Cuban na
Warranty claim documentation should be mailed promptly to Rheem Sales Co. Inc., Warranty Department, Rheem Sales Co. Inc. 1241 Carwood Ct Montgomery, Al. 36117 FOR YOUR RECORDS Owner Information Name Address Plumber / Mechanical Contractor – Installer Information Name Address Telephone Number Water Heater Information Model Number Serial Number Date of Installation How to Register You Product: Step 1: 1. 2. Go to www.rheem.com/warranty Click Start Registration Step 2: 1.
How to Register Your Product: Step 3: 1. Enter the fields on the screen • Warranty Type choices are • Standard • Protection Plus Kit Installed • For Marathon products, always select: • Standard • Install Date is captured but not used to change the warranty periods. Registration uses manufacturing date. The owner of the water heater is still required to provide proof of purchase/ ownership at the time of claim if the install date is after the registration date.
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IF YOU NEED SERVICE 1. Should you have any questions about your new storage tank, or if it requires 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 directory, commercial listings or local utility for qualified service assistance. 2.