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Non-Metallic Electric Water Heater
USE & CARE MANUAL
WITH INSTALLATION INSTRUCTIONS FOR THE INSTALLER
Residential Electric Models
30 - 105 Gallon Capacity
TM
The purpose of this manual is twofold: one, for the installer,
to provide requirements and recommendations for the prop-
er installation and adjustment of the water heater; and two,
for the owner-operator, to explain the features, operation,
safety precautions, maintenance and trouble shooting of
the water heater. This manual also includes a parts list sup-
plement.
It is imperative that all persons who are expected to install,
maintain, operate or adjust this water heater read the
instructions carefully so that they may understand how to
do so.
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Recognize this symbol as an Indication of
Important Safety Information!
Do Not Destroy this Manual. Please read
!
carefully and keep in a safe place for
Future Reference.
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Table of Contents
Related Manuals for Rheem Marathon MR105/473185
Summary of Contents for Rheem Marathon MR105/473185
- Page 1 Non-Metallic Electric Water Heater USE & CARE MANUAL WITH INSTALLATION INSTRUCTIONS FOR THE INSTALLER Residential Electric Models 30 - 105 Gallon Capacity ■■■✦■■■ ■■■✦■■■ ■■■✦■■■ ■■■✦■■■ The purpose of this manual is twofold: one, for the installer, to provide requirements and recommendations for the prop- Recognize this symbol as an Indication of er installation and adjustment of the water heater;...
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Page 2: Table Of Contents
Table of Contents General Safety Precautions ............. . . Introduction . -
Page 3: General Safety Precautions
General Safety Precautions Be sure to read and understand the entire Use & Care Manual before attempting to install or operate this water heater. It may save you time and cost. Pay particular attention to the General Safety Precautions. Failure to follow these warnings could result in serious bodily injury or death . Should you have problems understanding the instructions in this manual, or have any questions, STOP, and get help from a qualified installer, service technician, or the local electric utility. -
Page 4: Introduction
Introduction Thank you for buying your non-metallic electric water heater. Your new water heater is made of the latest materials and will not rust or corrode. It will give many years of hot water service when installed, operated and maintained according to the instructions in this manual. - Page 5 Installation WATER HEATER Shut-Off Cold Water Hot Water Valve Inlet Outlet INSTALLATION KIT Hot Water Shut-Off Outlet Cold Water Valve Inlet 90° Elbow 90° Elbow Flexible Connector Flexible Flexible Flexible Connector Connector Connector T & P T & P Relief Relief Vacuum Valve Ass’y Vacuum Valve Ass’y...
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Page 6: Water Supply Connections
Installation 3. WATER SUPPLY CONNECTIONS — Refer to Fig. 2 for suggested typi- 4. RELIEF VALVE — A relief valve is essential for safety and to protect the water heater. Too high of a temperature and/or pressure could cause the cal installation. -
Page 7: Filling Water Heater
Installation To prevent stress on the relief valve fitting, which may damage the tank, support the drain pipe using metal strapping or similar method to an over- Main Fuse or head point. Refer to Figure 3 for typical strapping method. Circuit Breaker Panel Metallic Conduit or Metal Sheathed Cable and fittings approved for use as... -
Page 8: Wiring Diagrams
Installation power supply provided is equivalent to that marked on the water heater’s The complete wiring schematic diagram for standard non- rating plate. All wiring must conform to local codes or, in the absence of simultaneous operation units is shown below in Figure 6. local codes, the latest edition of National Electrical Code ANSI/NFPA 70. -
Page 9: Pipe Wrap Energy Kit
Installation 8. PIPE WRAP ENERGY KIT — A pipe wrap energy saving kit consisting of Pipe Wrap Energy Kit. two lengths of foam insulation is included with this water heater. To realize (Seal Tightly) maximum energy savings, all exposed pipes should be insulated. However, most of the energy losses occur close to the water heater. -
Page 10: Operation
Operation SAFETY PRECAUTIONS A. Do turn off power to water heater if it has been subjected to over heating, CAUTION fire, flood or physical damage. B. Do Not turn on water heater unless it is completely filled with water. NEVER use this water heater unless it is completely full of water. To prevent damage to the tank and heating elements the tank C. - Page 11 Operation TIME / TEMPERATURE RELATIONSHIPS IN SCALDS Temperature Time to Produce Serious Burn 120° F. More than 5 minutes Reset Button 125° F. to 2 minutes 130° F. About 30 seconds 135° F. About 10 seconds 140° F. Less than 5 seconds 145°...
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Page 12: Safety Controls
Operation B. Remove the four (4) screws securing the thermostat access panel and CAUTION the two (2) thermostat insulation pads, exposing the thermostat. The The cause of the High Temperature Condition must be investigated plastic personnel protector should not be removed . by qualified service personnel and corrective action taken before C. -
Page 13: Routine Preventive Maintenance
Maintenance Properly maintained, your new, non-metallic water heater will provide years of appliances can cause a pounding “water hammer” sound. “Water ham- dependable trouble-free service. It is suggested that a routine preventive main- mer” can be described as a banging noise heard in a water pipe follow- tenance program be established and followed by the user. -
Page 14: Heating Elements
Maintenance 3. HEATING ELEMENTS — G. To expose the element for removal, lift up the hinged portion of the ther- mostat protective cover by gently pulling the lower corners up and away Most water supplies will cause scale or mineral deposits to form on the from the thermostat. -
Page 15: Maintenance
Maintenance 4. VACATION AND LONG TIME SHUTDOWN — DANGER If the water heater is installed where it could freeze (summer cabin, lake The water drained from the tank may be hot enough to present a home, etc.) you must drain all water from it and the piping. If the tank is full SCALD HAZARD and should be directed to a suitable drain to pre- of water and it freezes, the tank will break. - Page 16 Trouble Shooting Guide (cont’d) NATURE OF TROUBLE POSSIBLE CAUSE SERVICE Water too hot or not 3. Thermostat access panel(s) and/or insulation not in place Inspect and replace as needed hot enough (cont’d) 4. Thermostat(s) not resting tightly against mounting plate Inspect and insure that retaining spring(s) or mounting screws hold thermostat(s) tightly to mouting plates.
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