Rheem RS47-21BP, RS80-42BP User Manual

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. This manual also includes a parts list.

It is very important that all persons who are expected to install, operate or adjust this water heater read the instructions carefully so they may understand how to perform these operations. If you do not understand these instructions or any terms within it, seek professional advice.

Any questions regarding the operation, maintenance, service or warranty of this water heater should be directed to the seller from whom it was purchased. If additional information is required, refer to the section on “If you need service.”

Do not destroy this manual. Please read carefully and keep in a safe place for future reference.

Recognize this symbol as an indication of Important Safety Information!

California Proposition 65 Warning:

This product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.

AP13907 (09/06)

Printed in Australia

Use & Care Manual

With Installation Instructions for the Installer

Passive Solar Water Heating Systems

This Solar Water Heating system is for the models listed below:

RS80-42BP RS47-21BP

Safety Information

Introduction . . . . . . . . . . . . 3, 4

Safety Precautions . . . . . . . 5, 6

Installation Instructions

Location . . . . . . . . . . . . . . . . . 7

Unit Specifications & Parts 7,8

Pre-Installation Review. . . . . 9

System Requirements . . . . . 10

Pitch Requirements. . . . . . . . 11

Roof Requirements . . . . 12, 13

Electrical Requirements. 14, 15

Typical Installation . . . . . . . . 16

Plumbing Schematics. . . . . . 17

Details for Roof Types. . 18, 19

Frame Installation . . 20, 21, 22

Collector Installation . . . . . . 23

Tank Installation . . . . . . . . . . 24

Plumbing Installation . . . . . . 25

Stub Outs. . . . . . . . . . . . . . . . 26

Operating Instructions

Filling the Tank . . . . . . . . . . 26

Filling the Closed Loop . . . . 27

Test the Closed Loop . . . 27, 28

Connect Electric Supply . . . 29

Safety Controls . . . . . . . . . . . 30

Water Temperature . . . . . . . . 31

Care and Cleaning

Draining . . . . . . . . . . . . . . . . 32

Maintenance. . . . . . . . . . . . . 32

Extended Shut-Down . . . . . 33

Troubleshooting Tips

Before You Call

For Service. . . . . . . . . . . 34, 35

Customer Service

Frames Information . . . . 36-39

If You Need

Service . . . . . . . . . . . . . . . . . 40

Inside you will find many helpful hints on how to use and maintain your water heater properly. Just a little preventive care on your part can save you a great deal of time and money over the life of your water heater.

You’ll find many answers to common problems in the Before You Call For Service section. If you review our chart of Troubleshooting Tips first, you may not need to call for service at all.

READ THIS MANUAL

FOR YOUR RECORDS

Write the model and serial numbers here:

You can find them on a label on the appliance.

Staple sales slip or cancelled check here.

Proof of the original purchase date is needed to obtain service under the warranty.

Your safety and the safety of others are very important. There are many important safety messages in this manual and on your appliance. Always read and obey all safety messages.

This is the safety alert symbol. Recognize this symbol as an indication of Important Safety Information! This symbol alerts you to potential hazards that can kill or hurt you and others.

All safety messages will follow the safety alert symbol and either the word “DANGER”, “WARNING”, “CAUTION” or “NOTICE”.

These words mean:

DANGER

An imminently hazardous situation that will result in death or serious injury.

WARNING

A potentially hazardous situation that could result in death or serious injury and/or damage to property.

CAUTION A potentially hazardous situation that

may result in minor or moderate injury.

Notice:

Attention is called to observe a specified procedure or maintain a specific condition.

READ THE SAFETY INFORMATION

Introduction

Thank you for purchasing a solar water heating system. It is one of the most effective and trouble-free systems available today. In addition to reducing your water-heating bills, it will help preserve precious natural resources by using free energy from the sun.

As with an electric or gas water heater, your new solar water heating system operates automatically to ensure you will always have an ample supply of hot water. However, there are simple steps you can take to increase both its efficiency and service life.

This manual provides the manufacturers recommended procedures for Rheem Thermosiphon solar waterheating systems. The procedures are essential for correct installation, troubleshooting and maintenance.

Read each section of this manual thoroughly before beginning work on the system.

CAUTION: Changes to the design or intended use of the Rheem Thermosiphon System will void the manufacturers warranty. Installation, troubleshooting, and maintenance must be performed by a qualified technician.

This manual will help you get the most out of your solar water heating system. Please read it carefully when the installation is complete, and review it from time to time to refresh your memory about the service requirements and safety measures.

The Operation section of the manual contains important information regarding the system procedures as well as safety measures pertaining to the system. It is important that you follow these guidelines to ensure safe, efficient and trouble-free operation.

While the system requires very little maintenance, there will be a periodic need for some upkeep. The Maintenance section outlines those requirements for service, which you may do yourself, as well as those procedures best performed by a qualified service technician.

The Troubleshooting section contains steps you can take if the system is not performing, as it should.

The solar energy system described by this manual, when properly installed and maintained, meets the minimum standards established by the Solar Rating and Certification Corporation (SRCC). This certification does not imply endorsement or warranty of this product by the SRCC.

The solar energy system described by this manual, when properly installed and maintained, meets the minimum standards established by the Florida Solar Energy Center, in accordance with Section 377.705, Florida Statutes. This certification does not imply endorsement or warranty of this product by the Florida Solar Energy Center or the state of Florida.

Your passive solar water heating system is one of the most efficient yet simple and trouble free waterheating systems in the world.

The components of the system include a water storage tank, solar collector panels, and a assortment of pipes and valves.

In locations which are subject to temperatures below 41°F, a mixture of specially developed Hartgard fluid and water circulates through the solar collector panels. This fluid is heated by the sun, then circulated through the jacket surrounding the water storage tank, heating the potable (drinking) water inside the storage tank. The Hartgard fluid is a non-toxic, food-grade liquid, which provides freeze protection for the closed loop heat transfer loop. It is colored blue to differentiate the closed loop fluid from the potable water supply.

WARNING: Under no circumstances can any fluid other than Hartgard be used, alternate fluids could be hazardous to your health.

This circulation of the Hartgard fluid is accomplished naturally, without the need for pumps, sensors or any moving parts. No moving parts mean fewer potential problems. These solar water heaters are referred to as closed loop systems and identified in the model number by the last two digits.

Your how water is stored in a steel tank lined with two coats of Primaglaze

vitreous enamel (glass) and thickly insulated to help maintain the water temperature throughout the day and night.

To ensure your hot water supply is never depleted, the system is equipped with a backup heater or heating element. On the few days a year when there may be insufficient solar energy, you are still assured of all the hot water you will need.

If your system is your only source of hot water, there is one way to ensure a constant supply. a. You can leave the breaker ON all of the time and

the heater will operate only when the water temperature falls below the thermostat temperature setpoint

Introduction continued...

While your system is one of the most efficient available, there are two simple steps you can take to increase your water-heating cost savings.

Keep the use of the Backup Heater to a Minimum

You can save the most money on your water-heating bills by using the backup heater on your system as little as possible. If the sun shines brightly between I0 am and 3 pm, enough heat will normally be generated to keep the water hot throughout the rest of the day and night.

However, on days when the sky is cloudy or when large quantities of hot water are being used, we suggest that the backup heater be left “ON” overnight to ensure adequate hot water the next morning.

Try to use Hot Water during Daylight Hours

When possible, schedule heavy hot water use, such as dish washing, laundry and showers, in the middle of the day. If hot water usage occurs while the sun is up, the fresh (cold) water added to the storage tank is heated more quickly.

When water is used late in the day or at night, the fresh water entering the tank will be heated by the

element so hot water is available in the morning.

The Rheem Thermosiphon systems operate on the passive thermosiphon principle a ‘closed loop’ to provide fail-safe freeze protection up to -30°F of the collector closed loop. The closed loop consists of the solar absorbers, a single wall heat exchanger around the outside of the storage tank, and plumbing attachments.

Radiant energy from the sun heats the special longlife fluid in the solar collectors. As the fluid is heated, it rises into the tank heat exchanger and heats the potable water stored within.The hot potable water is stored in a well-insulated steel storage tank, which is lined with two coats of Primaglaze vitreous enamel for high temperature stability.

Flow of the closed loop fluid, using the passive thermosiphon principle, is accomplished without pumps, sensors or moving parts.

Time/Temperature Relationship in Scalds

Temperature Time To Produce a Serious Burn

120°F More than 5 minutes

125°F 1½ 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 1½ seconds

155°F About 1 second

Table courtesy of Shriners Burn Institute

The chart shown above may be used as a guide in determining the proper water temperature for your home.

DANGER: Households with small children, disabled, or elderly persons may require a 120°F or lower thermostat setting to prevent contact with “HOT” water.

NOTICE: Mixing valves should be installed to reduce the point of use water temperature by mixing hot and cold water in branch water lines. Contact a licensed installer or the local plumbing authority for further information.

The temperature of the water in the water heater can be regulated by setting the temperature dial of the adjustable surface mounted thermostat located behind the left tank end cover.

This thermostat controls the water heater’s heating element only. (A separate thermostat should be utilized in monitoring the temperature from the collector).

To comply with safety regulations the thermostat is factory set at 120° F or less where local codes require.

DANGER: Hotter water increases the potential for Hot Water SCALDS.

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 can cause severe burns or death from scalding. Be sure to read and follow the warnings outlined on the label pictured below.

EWT1L2

S-2

IFF

EC O : 8 3

10MAY2002

CS6209N

240 Va c 30A

ROBERTSHA

DANGER: Burns from Hot Water and Steam - Use extreme care when opening relief valves, charging closed loop, and filling storage tank.

The electrical element booster thermostat has been factory set at 122°F (50°C) to reduce the risk of scald injury. Adjusting the thermostat to a higher setting is not recommended. Hotter water increases the potential for Hot Water Scalds.

Thermostat

Dial Pointer

DANGER

HOT

BURN

Water temperature over 125° F can cause severe burns instantly or death from scalds.

Children, disabled and elderly are at highest risk of being scalded.

See instruction manual before setting temperature at water heater.

Feel water before bathing or showering.

Temperature limiting valves are available, see manual.

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. 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 service technician, or the local utility.

FOR INSTALLATIONS IN THE STATE OF CALIFORNIA

California Law requires that residential water heaters must be braced, anchored or strapped to resist falling or horizontal displacement due to earthquake motions. For residential water heaters up to 52 gallon capacity, a brochure with generic earthquake bracing instructions can be obtained from: Office of the State Architect, 1102 Q Street, Suite 5100, Sacramento, CA 95814 or you may call 916-445-8100 or ask a water heater dealer.

However, applicable local codes shall govern installation. For residential water heaters of a capacity greater than 52 gallons, consult the local building jurisdiction for acceptable bracing procedures.

READ AND FOLLOW THIS SAFETY INFORMATION CAREFULLY.

SAVE THESE INSTRUCTIONS

Have the installer show you the location of the circuit breaker and how to shut it off if necessary. Turn off the circuit breaker if the water heater has been subjected to overheating, fire, flood, physical damage or if the ECO fails to shut off.

● Read this manual entirely before installing

or operating the water heater.

● Use this appliance only for its intended

purpose as described in this Use and Care Manual.

● Be sure your appliance is properly installed

in accordance with local codes and the provided installation instructions.

● Do not attempt to repair or replace any part

of your water heater unless it is specifically recommended in this manual. All other servicing should be referred to a qualified technician.

SAFETY PRECAUTIONS

Installing the water heater.

The location chosen for the water heater must take into consideration the following:

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.

Location

Minimum Air Temperature

Rheem Thermosiphon systems must not be installed in areas where the outside air temperature can fall below 41°F continuously for more than 18 hours. Where outside air temperature falls lower than 41°F Rheem closed loop models must be installed. The collector closed loop fluid is freeze protected to -40°F.

If the outside air temperature is to fall below 32°F for more than 4

hours on the Rheem closed loop models, it is suggested that all potable water plumbing is installed with heat trace and insulated to protect against pipe freezing. In the event of a power failure, open a hot water faucet and allow a slow trickle of water to flow until power is restored.

Please contact your service technician for assistance and advice with protection against pipe freezing.

Inspect Shipment

Inspect the water heater for possible damage. Check the markings on the rating plate of the water heater to be certain the power supply (Solar Electric Only) corresponds to the water heater requirements. Make sure all parts included with the solar water heater system are accounted for by comparing to the following list of parts.

WARNING: Heat trace will not protect against pipe freezing in the event of power loss.

WARNING: Extended periods of cold weather, including ambient air temperatures below the limits specified on the right, may cause freezing in exposed parts of the system. It is the owner’s responsibility to protect the system in accordance with these instructions if the air temperature is anticipated to approach the specified limits.

Total Capacity ( Nominal) 48 Gallons 80 Gallons

Overall size ( L x W x H ) 59” X 20” X 20” 90” X 20” X 20”

Nominal Working Pressure 15 - 145 PSI. 15 - 145 PSI

Weight Empty 143 lbs. 226 lbs.

Weight Installed 540 lbs. 877 lbs.

Immersion Element (Booster) 2.4 kW 220/240 V 2.4 kW 220/240 V

Water Storage Tank Specifications

(Part Number RS80 & RS47)

Collectors (1 or 2)

Overall Size (L x W) 76” x 40"

Collector Model Number RS-21BP

Nominal Area 21.3 sq. ft. Weight Empty 84 lbs. Weight Installed 96 lbs. Plate-to-Plate Bonding Electric Welding

Test Pressure 26 psi

Nominal Working Pressure -0.2 to 11.5 psi

Installing the water heater.

Solar Collector

3/4” Union Nut 3/4” T/P Valve

Fill Fitting

Collector Nut 18mm Union Cone 3/4” Check Valve

(NOT INCLUDED)

Collector Hot Pipe

Collector Plug

Lag Screw

(5/16” x 1 3/4”)

(NOT INCLUDED)

3/4” Cold Water Expansion Valve

Collector Clamps

3/4” Tail Plug

Tempering Valve PR6 Jacket Relief Valve

(includes “O” ring).

Collector Extrusion

3/4” Union

3/4” Tee Adapter Collector Union

Tank Clamp

Collector Down Pipe

1 Gallon Hartgard Collector Strap

Tank Strap

System Parts ID List

(NOT

INCLUDED)

Storage Tank

Pre-Installation

These installation inspection procedures include;

• Review of local building codes for site

requirements and specific guidelines for plumbing

and electrical installation.

• Inspection of installation site.

• Completion of the Pre-installation Checklist,

including customer’s signature.

Site Inspection Equipment

• Pre-Installation Inspection Checklist

• Pencil or pen

• Ladder

• Tape measure

• Flashlight

• Water pressure gauge

• Pitch gauge

• Compass

Review Local Codes

• Review local codes and record on checklist:

• Area requirements

• Plumbing requirements

• Electrical requirements

• Roof support stress load and modification

requirements (including engineering review, if

necessary).

• Obtain building plans, if possible, to help locate

bearing walls and determine truss strength.

• Record extreme weather conditions on

checklist;

• Heavy-snowfall areas require roof-ridge

mount, see Figure below.

• High-wind areas require an additional

Bracing Kit.

• Installation sites subject to winds of more

than 50 m.p.h. require a specially

engineered frame.

• Cold areas need freeze protection for all

domestic plumbing lines.

This section will guide you to gather the necessary information to install the system correctly. Use it together with the Installation Checklist to identify all installation requirements.

Roof Ridge Mounts

Installing the water heater.

The system must face between 135 - 225° (Ideal direction is true South): (Refer to the Figure on the right).

Installations outside this range require either an additional collector or frame.

Site must be shade-free year-round and clear of obstructions.

Plumbing/Electrical stub-out

• 1' 6" left side for roof-ridge mount,

• 1' 6" top or left side all others.

• Maintenance area: 8' on left side.

• All local code-required setbacks, heights, and

distances from other structures, pipe vents and utilities must be followed.

Area Requirements for Collectors

System Placement Requirements

Number of

Collectors

Installation

Area Required

8’ x 8’

Pitch Requirements

Correct operation requires a 15°- 45° pitch (slope). This can be done by using the roof slope itself or a frame

CAUTION: DO NOT install on a roof with a pitch beyond 45°.

Use pitch gauge and compass and complete the following steps. Record the results on the checklist.

• Record pitch and compass

bearing of proposed installation site.

• Using table shown below,

select number of collectors and correct type of installation.

NOTICE: A roof pitch beyond 30° requires additional bracing.

NOTICE: A crane may be necessary for installation.

Roof Installations

Compass

Bearing

Pitch Mount No. of Collectors

135° - 225° 14° - 45° None 2

135° - 225° 0° - 15° Frame 2

226° - 270°* 15° - 45° None 2

5° - 134°

270° - 315°

15° - 45° Side Pitch 2

0° - 44°

316° - 360°

15° - 35° Reverse Pitch 2

* If installed in this orientation,solar heater will not provide maximum solar heating capacity.

Frame Installations

Installing the water heater.

Roof Survey

Record the following on the checklist:

• The type of roofing material (tile, shingle, tar & gravel, metal, etc.).

• The condition of the roof. Note any repair requirements

needed prior to installation.

• Draw diagram (top view) as shown below, of installation area. Mark location of the system and stub-out.

• Using the table below, select the appropriate supporting structure for your solar system.

NOTICE: A roof in poor condition may need replacement before the system is installed.

Roof Type Installation Type Supporting Structures

All types except sturdy tiles and

metal

With pitch (standard) 4 runners and Collector Extrusion

Sturdy tiles or metal roof with

No obstruction of water flow

With pitch (metal / sturdy tile) Collector Extrusion only

All types Side pitch 2 runners + Frame

All types Reverse pitch 2 runners + Frame

All types Flat / shallow pitch 2 runners + Frame

Roof Support Requirements

The system weighs up to 1089 lbs (80 Gallon System) when installed and filled. It may not be necessary to provide additional support but you must inspect the roof support system to determine if additional bracing is needed.

Record the following on the checklist.

CAUTION: If the following modifications do not apply to the installation site, an engineer must specify support modifications.

Conventional Roof Modifications;

• Locate the load bearing wall beneath installation site (refer to building plan if available) and indicate on the roof-site plan. If a load-bearing wall is not available, note this on the checklist.

• Review Figure at the top of the following page and select correct supports.

Conventional Roof Modifications

Truss Frame Modifications

Allowable Spans for Trusses

2” x 4” Top Chord 2” x 6” Top Chord 24” O.C. Kickers Bottom Chord Pitch Roof Material

21” 32”

2”x4” or 2”x6” 3:12¹ Tile

24” 36”

2”x4” or 2”x6” 3:12¹ Shake

25” 38”

2”x4” or 2”x6” 4:12² Tile

28” 42“

2”x4” or 2”x6” 4:12² Shake

28” 36”

2”x4” or 2”x6” 7:12³ Tile

30” 38”

2”x4” or 2”x6” 7:12³ Shake

NOTICE: For truss spans >36”, use double 2” x 6” kicker.

Pitch of 3:12 or less ² Pitch of 4:12 to 6:12 ³ Pitch of 7:12 or greater

Determine the correct truss frame modification using the figures shown below.

Installing the water heater.

Review the checklist for installation requirements.

Check the following before beginning installation.

Permits

Obtain required permits before installation.

Work Force

An 80 gallon storage tank weighs up to 242 lbs empty, requiring a crew of two or more to install.

Inventory

Review Section on Frames, included hardware, and all optional supplies before beginning installation.

Required Tools, Equipment and Supplies

Basic Plumbing, Electrical and Carpentry Supplies

• Metric wrench (36 mm open end wrench)

• 12” pipe wrench

• Two 12” adjustable (crescent)

• Wrenches

• Water pressure gauge

• Crowbar

• Copper tubing cutter

• Soldering kit

• Caulking gun

• 24” Spirit (bubble) level

• Cable cutter / stripper

• 6” diagonal cutting and long nose pliers

• 100' Grounded extension cord

• Screwdriver Set (# 2 Philip’s, 1/4” Slotted)

• Tape measure (100 Foot)

• 16-Ounce claw hammer

• Marking pen

• Utility knife

• 3/8”-drive socket set

• 2 Extension ladders

• Flashlight / electric lantern

• Pipe vice / cutter / threader

• Volt, ohm, ammeter

• Hacksaw

• 1/2” Electric drill with bit set

• Skill Saw with standard and masonry blades

• Crane, if required

• 1” Wood-boring bit

Consumable Supplies:

• Masking/duct tape

• Wood/sheet metal screws

• Dielectric pipe unions

• Waterproof sealing compound

• 5/16” Lag Screws, 1 3/4”, 2”, 3”, 6”, as required

• Washers

• Nails, 16g, or assorted, as required

• Silicone sealant

• 2' x 4' x 8'4” redwood, treated-wood or

• Unistrut runners, as required

NOTICE: This guide recommends minimum branch circuit sizing and wire size based on National Electric Code. Refer to the wiring diagrams in this manual for field wiring connections.

Branch Circuit Sizing and Wire Size Guide

Total Water Recommended Over Current Protection Copper Wire Size AWG Based

Heater Wattage (fuse or circuit breaker amperage rating) on N.E.C. Table 310-16 (75°C)

208V 240V 277V 480V 208V 240V 277V 480V

3,000 or lower 20 20 15 15 12 12 14 14

4,000 25 25 20 15 10 10 12 14 4,500 30 25 25 15 10 10 10 14

• Review the checklist with the customer and discuss all installation requirements and procedures.

• Ask the customer to sign the checklist.

Customer Approval

NOTICE:All wiring must conform to local codes or the latest edition of National Electrical Code ANSI/NFPA 70.

WARNING: Any wiring outside of the house should be rated for the appropriate weather conditions.

If the system is being used as a pre-heater to an existing water heater, the electrical review and installation may not be required.

A 240 Volt electrical breaker with appropriate amp rating is required to activate the Backup Heating Element located near or as part of the main circuit breaker/fuse panel.

The manufacturer’s warranty does not cover any damage or defect caused by installation, attachment or use of any type of energy saving or other unapproved devices (other than those authorized by the manufacturer) into, onto or in conjunction with the water heater. The use of unauthorized energy saving devices may shorten the life of the water heater and may endanger life and property.

The manufacturer disclaims any responsibility for such loss or injury resulting from the use of such

unauthorized devices.

Check the availability of a 240-volt, and an appropriately sized electrical breaker. A separate branch circuit with copper conductors, overcurrent protective device and suitable disconnecting means must be provided by a qualified electrician. If the breaker is not available, mark a location for a separate breaker.

When replacing an existing electric water heater see the chart on page 14.

The voltage requirements and wattage load for the water heater are specified on the rating plate on the front of the water heater.

The branch circuit wiring should include either:

• Metallic conduit or metallic sheathed cable approved for use as a grounding conductor and installed with fittings approved for the purpose.

• Non-metallic sheathed cable, metallic conduit or metallic sheathed cable not approved for use as a ground conductor shall include a separate conductor for grounding. It should be attached to the ground terminals of the water heater and the electrical distribution box.

Electrical System Requirements

Electrical Schematic

240 Volt, 20 AMP Supply Breaker Using No. 12 Wire (Copper) Minimum See the table on page 14 for additional information.

240 Volt, With Ground Supply Using 12 Ga.Wire (Copper) Minimum Depending on Amp draw. - See the table on page 14 for additional information.

Auxiliary Thermostatically Controlled Electric Back-Up 220/240 Volt/2.4 kW

Weatherproofed Roof-Mounted 2-Pole, 20-Amp Rated Switch Disconnected

Tank-Mounted Thermostat 220/240 Volt D.P.S.T.

Roof Line

Circuit Breaker

Weatherproofed Roof-Mounted 2-Pole, 20-Amp Rated Switch Disconnected

Hot Return to

House

Cold Supply to Water

Heater

Old Water Heater

Electrical Junction Box

Main Supply Panel

Installing the water heater.

Typical Installation

Choose the installation type from the following;

1. As a replacement for an existing water heater (Preferred).

2. As the stand alone source of hot water for new construction or locations without a previous water heater.

3. As a pre-heater to an existing water heater.

NOTICE: Using the system as a pre heater to an electric water heater is less efficient than a stand alone

system. (Not Recommended). Do not perform this installation unless specifically requested by the customer.

All plumbing installation must conform to local codes.

All piping must be adequately supported; supports must conform to local codes.

All piping must be sloped to a drain.

Plumbing must be installed so that the performance of any fire rated assembly is not reduced.

WARNING: Heat trace will not protect against pipe freezing in the event of power loss.

NOTICE: The closed loop piping between the storage tank and solar collectors does not require insulation and is rated up to 30°F.

Type of Installation

WARNING: Burns from Collector Fluid or Downpipe and Hot Pipe - Cover the solar collectors with an opaque (no light can penetrate) material and allow plumbing and fluid to cool before attempting any maintenance.

A new combination temperature and pressure relief valve, complying with the Standard for Relief Valves and Automatic Gas Shut-Off Devices 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.

Storage Tank

Collectors

Jacket Relief Valve

T&P Valve

Tempering Valve

Cold Water Expansion Valve

Collector Down Pipe

Collector Hot Pipe

Tee

Adapter

Plumbing System Schematic for Replacement of Existing Electric Water Heater

Tank

3/4”

Plumbing System Schematic for Installation of stand alone Water Heater

Valve Settings: Solar Only = (TWV1-1) + (TWV2-1) + (Pre Heat OFF) Storage Only = (TWV1-2) + (TWV2-2) + (Pre Heat OFF) Solar Pre Heat = (TWV1-1) + (TWV2-2) + (Pre Heat ON)

TWV1 = Two Way Valve - 1 Inlet Selector TWV2 = Two Way Valve - 1 Outlet Selector Pre Heat = Solar Pre Heat Valve

Tank

3/4”

Collector

3/4”

M = Mixing Valve T/P = Temperature & Pressure Relief

T/P

M = Mixing Valve T/P = Temperature & Pressure Relief

Installing the water heater.

Types of Roof Installation

Installation types are divided into the following:

Standard Installation:

The system is mounted to wood or Unistrut runners directly to the roof with no need for pitch or directional changes.

Metal / Sturdy Tile Installation:

The system is mounted directly to the roof with no need for pitch or directional changes.

Frame Installation (Side, Reverse, Shallow-Pitch and Flat-Roof Installation)

The system is mounted on a variable pitch frame to provide pitch or a fixed pitch frame to provide directional changes.

This section contains instructions for correct installation of the system. Complete the procedures in the order listed.

NOTICE: Installation of roof supports, plumbing, and electrical components must conform to local codes.

Plumbing System Schematic for Installation as Pre Heater

3/4”

Collector

M = Mixing Valve T/P = Temperature & Pressure Relief

T/P

Collector

Valve Settings: Solar Only = (TWV1-1) + (TWV2-1) + (Pre Heat OFF) Storage Only = (TWV1-2) + (TWV2-2) + (Pre Heat OFF) Solar Pre Heat = (TWV1-1) + (TWV2-2) + (Pre Heat ON)

TWV1 = Two Way Valve - 1 Inlet Selector TWV2 = Two Way Valve - 1 Outlet Selector Pre Heat = Solar Pre Heat Valve

Notice: All pipe work 3/4” unless

otherwise stated.

Roof Preparation

Refer to the checklist for necessary roof modifications on page 12.

Install supports for Fragile Tile Roof

The system may be installed directly on most roof types if the roof is in good condition with adequate drainage.

For other types of roofs, do the following:

Clear area of roofing material from top of roof to lower edge of roof with 2'

clearance on each side (refer to Figure below) set aside for reinstallation.

Install waterproof material over cleared area.

Fully seal and waterproof new material.

Continue with section; Supporting Structure Installation.

This section contains instructions for correct installation of the system. Complete the procedures in the order listed.

NOTICE: The storage tank will be parallel to rafters of trusses for sidepitch mount and at a right angle for all other mounts.

Refer to the appropriate section listed below for installation procedures:

•Standard Installation: Page 19

•Metal / Sturdy Tile Installation: Page 20

•Frame Installation: Page 21

Standard Installation

1. Mark supporting rafter/truss and bearing-wall locations on roof.

2. Place four 2" x 4" x 8' 4” redwood, treated-wood or Unistrut runners parallel down roof slope over marked rafters or trusses.

•For standard installation, runners must be

placed within 3’ of roof ridge

•For roof-ridge mounts, place top of

runners at roof ridge

3. Drill each runner in center and 6" from

runner ends and attach to rafters or trusses with 5/6" x 6" lag screws and washers.

4. Flash and seal all roof penetrations.

5. Position Collector Extrusion so that flat vertical edge is toward roof ridge

6. Level the Extrusion using a spirit level and shims After leveling, raise the hot pipe side of the extrusion by 1/2” per collector to ensure correct operation of the system (eg. For a 2 collector system, raise the hot pipe side of the extrusion by 1”).

7. Mount the Extrusion to each runner using 5/16" x 2” lag screws or Unistrut bolts.

8. Continue with Collector Installation, page 23.

Fragile Tile Roof

NOTICE: Supporting rafters may be either 16” or 24” on center. Runners will not be equally spaced on 16” on-center rafters. See Figure for “Wood Runner Detail”.

NOTICE: Double check the placement of the runners over the rafters or trusses before drilling holes.

NOTICE: You may want to predrill runners with pilot holes to avoid splitting runners with lag screws.

Supporting Structure installation

Installing the water heater.

Wood Runner Detail for 16” & 24” On-Center Rafters for Standard Installation

Collector Extrusion Detail for Standard Installation

CAUTION: The Extrusion must slope 1/2” per collector from horizontal (hot pipe side to be higher) for the system to work correctly.

Metal or Tile Installation

1. Mark tank location on roof with front foot of tank located directly over reinforced roof area.

2. Measure 82 inches down roof from front foot of tank to determine location for Collector Extrusion.

3. For Tiled roofs, remove tiles to allow for room to screw collector straps to rafters or trusses. If installing three collectors, remove tiles for third collector strap.

4. Slide the Collector Extrusion on to the Collector Straps. After leveling, raise the hot pipe side of

the extrusion by 1/2” per collector to ensure correct operation of the system (eg. For a 2 collector system, raise the hot pipe side of the extrusion by 1”).

6. Attach straps onto rafters or trusses with 5/16” x 6" lag screws.

7. Replace tiles that have previously been removed.

8. Flash and seal all roof penetrations.

9. Continue with Collector Installation.

NOTICE: Be sure the flat side of the vertical support of the extrusion faces toward the collector location and the “U” shape opens toward the lower roof edge.

Collector Extrusion & Strap Installation Detail - Tile Roof

CAUTION: Straps must be attached directly onto the rafters or trussed not less than 39” apart and not more than 63" apart.

CAUTION: The Extrusion must slope 1/2” per collector from horizontal (hot pipe side to be higher) for the system to work correctly.

Collector Extrusion and Strap Installation Detail - Metal Roof

CAUTION: Ensure the weatherproof seal is restored.

The frame is attached to two wood or Unistrut runners and installed over rafters or trusses, bearing wall or reinforced roof area. Fixed pitch frame assemblies are used in reverse and side pitch installations, whereas variable pitch frame assemblies are used for shallow pitch or flat roof installations.

1. Remove roofing if necessary where runners will be installed to provide solid base for the frame.

2. Install two off 2" x 4" x 8'4” redwood, treated-wood or Unistrut runners;

• Mark supporting rafter or truss locations,

• Place tank-end of runners over load-bearing

wall,

• Cut runners to straddle the two closest

rafters diagonally,

• Angle runners under support points to

permit rainwater drainage.

Frame Installation

CAUTION: For all frame installations, the tank-end support points must be located over the load-bearing wall or a reinforced roof area.

CAUTION: Ensure the weatherproof seal is restored.

Installing the water heater.

Frame Installation continued....

• Drill each runner in center and 6" from runner ends and screw to rafters or trusses with 5/16" x 6" lag screws and washers,

• Flash and seal all roof penetrations.

3. Move all pieces of Frame to roof and

assemble (refer to Figure below).

4. Attach Frame to runners:

For shallow-pitch or flat roofs, screw frame directly to runners.

For side pitch or reverse pitch roofs;

• Loosely screw collector end of frame to runners with 5/16" x 1 3/4" lag screws and washers,

• Level frame and measure the required length for the tank-end pipe legs ( 5),

• Measure and cut un-drilled end of pipe

legs to correct length,

• Attach 'U' brackets to runners with 5/16" X 1 3/4" lag screws and washers or Unistrut bolts (refer to Figure below),

Lower Pipe Leg Installation

• Insert un-drilled ends of pipe legs into frame,

• Attach drilled end of pipe legs to 'U' brackets using 2" screws,

• Screw pipe legs to frame with 2" screws through pipe legs and frame sleeves,

•Continue with Collector Installation.

NOTICE: Allow room for “U” bracket pipe leg cradle on frame. Roofs with steep pitches (above 20°) may require short pipe legs at collector end of frame for clearance.

Frame Assembly

Pipe Leg Connection Detail

“U” Bracket

Frame Leg

2” Screws

Collector Installation

Collector Union

Collector Nut

Fill

Assembly

Collector

Nut

Collector

Plug

Collector Fitting Installation Detail

1. Set collectors in place, resting lower ends on collector extrusion or frame,

2. Remove plugs from corners of the collectors

3. Connect collectors with collector unions. Do not tighten fully (refer to points A & B in the figure above).

4. Check that collectors slope 1/2” per collector from horizontal (hot pipe side to be higher).

6. Install the collector plug and the collector nut at Point C.

7. Install collector fill assembly and collector nut at Point D.

8. Attach collectors to support

structure as shown below.

Standard Installation

Attach collectors to extrusion using 2 sets of collector clamps, screws and nuts, per collector .

Frame Installation

1. Attach collectors with 2 sheet metal screws per collector, through the angle iron upright into the collector frame at the top and bottom of each collector.

2. Tighten collector unions, parts and hardware securely.

3. Continue with storage tank installation.

CAUTION: The Extrusion must slope 1/2” per collector from horizontal (hot pipe side to be higher) for the system to work correctly.

CAUTION: Do not damage Internal Collector Absorber with screws.

Collector Attachment Details: Standard, Metal, or Tile.

Collector Attachment Details: Frame Installation

Installing the water heater.

Storage Tank Installation

CAUTION: Do not damage internal collector absorber with screws.

Collector Hot Pipe

Tank Clamp

1. Spread open (4) four tank clamps (2 for metal or sturdy tile installations) to allow room to clear tank foot, and attach to rear foot of tank.

2. Place the (2) two tank-to-collector spacers at the top of the collectors, to ensure correct spacing for alignment of downpipe and hot pipe. Refer to figure above.

CAUTION: Do not tighten tank in place

at this stage.

3. Attach tank to supporting structure as detailed in sections above.

Standard Installation

Drill holes in each runner, and screw clamps directly to runner with 5/16" X 1-1/4" lag screws, see figure above.

Metal / Sturdy-Tile

1. For a sturdy tile roof, remove the tiles to allow room to screw tank straps directly into the rafters or trusses.

CAUTION: Tank straps must be screwed

directly into rafters or trusses not less than 39” apart and not more than 63” apart.

2. Attach two tank straps directly to rafters or trusses with 5/16" x 1 1/4" lag screws.

3. Screw tank clamps to each strap with 5/16" X 1 1/2" machine screws and washers.

Frame Installation

1. Screw tank clamps directly to frame with 5/16" X 1 1/2" machine screws and washers.

2. Carefully align collector hot pipe and downpipe connections with tank.

3. Connect hot pipe to lower-left side of tank (or pipe extension) and upper-left side of left-hand collector. Do not fully tighten.

4. Connect downpipe to lower-right side of tank (or pipe extension) and lower-right side of right-hand collector. Do not fully tighten.

5. Tighten hot pipe and downpipe connections side of right-hand collector. Do not fully tighten.

CAUTION: DO NOT install on a roof with a pitch beyond 45°.

Collector down pipe alignment

CAUTION: If pitch is 30°45°, additional tank bracing is required.

Storage Tank Attachment Detail to Wood Runner

Tank End

Storage Tank Attachment Detail to Metal/Tile

NOTICE: A crane may be necessary for installation.

CAUTION: If lifting tank to roof manually, use correct lifting techniques.

6. Level the tank.

7. Tighten the tank system in place.

8. Tighten hot pipe and downpipe connections.

9. Install tee adapter (See figure at right).

10. Install T/P Valve into tee adaptor

(See figure at right).

11. Install tail plug in right end of tank

(See figure at left).

11. Continue with plumbing

installation as described in section below.

Storage Tank Plumbing Attachment

Detail, Left Side

Te e

Adapter

T&P Valve

For collector connections see specific installation diagram for each model.

Plumbing Installation

CAUTION: If using teflon tape to seal T&P valve, make sure the tape does not block the water passage.

1. Review checklist sketches for roofjack location.

2. Mark on the roof the exact location of roof-jack installation.

3. Install plumbing according to type of installation on page 17 & 18 and plumb lines to roof according to Key to Stub-Outs.

External Piping Insulation

• Where potable water piping is in an

external location or attic space where the temperature can be as low as 19°F it must be insulated with a minimum ¾” Armaflex (or similar) flexible elastomeric closed cell thermal insulation. Where the temperature can fall to 12°F the insulation thickness must be increased to 1 ½”.

• It is recommended that electrical heat

tracing be installed on potable water piping in areas where the temperature falls below 32°F for more than 4 hours with no hot water draw to protect against pipe freezing.

• Insulation in external locations can

deteriorate through UV radiation. To prevent this, a layer of outdoor UV stable paint or other similar protective coating must be applied to the insulation.

The following may be performed in any order necessary:

• If water pressure exceeds 60 psi,

install optional Pressure Regulator on main supply to building.

• Connect the outlet of the T/P and pressure relief valve to a suitable open drain so that the discharge water cannot contact live electrical parts and to eliminate potential water damage.

DANGER: Hotter water increases the potential for Hot Water SCALDS.

• Piping used should be of a type approved for hot water distribution.

• The discharge line must not be smaller than the outlet of the valve and must pitch downward from the valve to allow complete drainage (by gravity) of the relief valve and discharge line.

• The end of the discharge line should not be threaded or concealed, and should be protected from freezing.

• No valve of any type, restriction or reducer coupling should be installed in the discharge line.

NOTICE:

1. All plumbing installation must

conform to local codes.

2. All piping must be adequately

supported, supports must conform to local codes.

3. All piping must be adequately

insulated, insulation must conform to local codes.

4. All piping must slope to drain.

CAUTION: Plumbing must be installed so that the performance of any fire rated assembly is not reduced.

NOTICE: The location of the roof jack may vary depending on installation type.

NOTICE: The closed loop piping between the storage tank and solar collectors does not require insulation.

WARNING: Heat trace will not protect against pipe freezing in the event of power loss.

Tail Plug

Downpipe

Connection

Installing the water heater.

See Key to Stub - Out Details Below:

All plumbing and wiring Stub-Outs to be a minimum of 18" above roof frame.

(E) Electrical service (240V, 20-amp

required only if using auxiliary electrical backup in tank)

(R) 3/4" Relief Line

(H) Hot Supply to House

thermosiphon tank

•

• Install hot and a cold water shut-off valves next to the existing water heater in a convenient location.

Electrical Installation

1. See “Connect the Storage Tank to

the Electrical Supply Section” on page 29 for electrical requirements.

2. Install according to Figures on page

15, electrical schematic, and optional electrical connections.

Install Roof - Jack Panel

1. Remove the necessary roofing

material,

2. Place the panel over the plumbing

and electrical stub-outs and install it with nails or screws,

3. Flash and seal all roof penetrations.

4. Replace the roofing material.

Connect the Plumbing to the Storage Tank, (see the Figure at the top of page 25.)

1. Connect the cold water supply line to

the storage tank.

2. Connect the solar hot water line to

the Tee Adapter.

3. Connect the drain line to T/P Valve.

NOTICE: This section does not apply if this system is installed as a preheater to an existing water heater.

CAUTION: Do not connect the electricity to the main circuit breaker until the tank is full of water.

NOTICE: Ensure the plumbing is installed to allow for the removal of the storage tank end cover for the maintenance procedures.

CAUTION: On new construction, Do Not fill storage tank and/or charge the closed loop system until the water heater is ready for use. Cover the collectors until the system is filled and charged. Place a tag on the system if it s not filled and charged.

Make certain the drain valve is completely closed.

Open the shut-off valve in the cold water supply line.

Open each hot water faucet slowly to allow the air to vent from the water heater and piping.

As the water heater fills, air will be pushed from the open outlet faucet. A steady flow of water from the hot water

faucet(s) indicates a full water heater.

Check the tank and cold water lines for leaks and repair any found.

Ensure that the storage tank is completely free of air by opening the T/P Valve until it discharges a steady stream of water. Then close the valve.

The system is now ready to Test and Fill the closed loop as described in the next section of this manual.

To Fill the Water Heater

Closed Loop Fluid The closed loop must be filled ONLY with Hartgard solution and potable water.

Each system closed loop is to be filled with one bottle of Hartgard and the balance potable water.

When mixed, the approximate Hartgard concentration is 20%.

Material Safety Data

Service Temperature Range

-40°F to 300°F

Freezing Point -50°F

Boiling Point 212°F

Flash Point 218°F

Auto Ignition Temperature

> 750°F

Fluid Color Light Blue

First Aid

• Eye Contact: Irrigate with water for 5 minutes

• Skin Contact: Wash with flowing water or shower

• Inhalation: No adverse effects

• Ingestion: No adverse effects

• Advice to Doctor: Treatment based on judgement of doctor in response to patient reaction

Disposal of Fluid

Reprocess or burn in an approved incinerator in accordance with Federal/State/Local code requirements.

Test and Fill the Closed Loop

WARNING: Under no circumstances can any fluid other than Hartgard be used, alternate fluids could be hazardous to your health.

Test and Fill Procedure

• Remove the Fill Plug from the collector fill assembly.

• Remove PR6 Jacket Relief Valve from the tank.

• Connect a 1/2” hose and fill the closed loop with water.

• Continue filling until the water overflows from the PR6 Jacket Relief Valve port and air bubbles stop.

• Fit the Test Block into the PR6 Port.

• Fit the PR6 Jacket Relief Valve onto the Test Block.

• Now remove the hose from the Fill Assembly and replace the Fill Plug.

• Connect a bicycle pump to the Test Block and pressurize the Closed Loop to

11.6 psi.

• Check all connections for any evidence of leakage.

• Ensure that the pressure remains constant at 11.6 psi for at least 10 minutes.

Installing the water heater.

• Rectify leakage if observed at any of the connections and repeat steps indicated on previous page.

• Release the pressure from the closed loop by loosening the PR6 valve from the Test Block.

• When the pressure is zero, tighten the PR6 Jacket Relief Valve.

• Once again remove the Fill Plug from the Fill Assembly and connect the hose.

• Remove the PR6 Jacket Relief Valve and siphon the entire contents of the blue Hartgard container with help of the hose.

• Water will flow through the PR6 port on the Test Block during this operation.

• When the Hartgard container is completely empty, refit the PR6 valve onto the Test Block.

• Remove the hose from the Fill Assembly.

• Allow the fluid to flow until it stops.

• (This checks the vacuum seal on the PR6 valve).

• Once the flow stops, screw in the Fill Plug.

• Pressurize the Closed Loop to 11.6 psi as before with the help of the bicycle pump and ensure there is no leak at the Fill Assembly.

• Ensure that the pressure remains at 11.6 psi for at least 10 minutes, as before.

• Release the pressure from the closed loop by removing the PR6 Valve from the Test Block.

• Remove the Test Block from the Tank.

• Fit the PR6 Valve in its place on the tank after ensuring that the “O” ring is in its seat.

Connect Storage Tank to Electrical Supply

• Use only a utility supply having a maximum of 240 volt, 1 phase, 60Hz, power supply.

WARNING: Turn off all power to

avoid injury.

• The water heater must always be connected to the ground in accordance with the local codes.

• Connect the branch circuit equipment grounding means and system grounding conductors to the water heater at the terminal marked “G”.

• Use only copper conductors.

1. Turn OFF the main site electrical power.

2. Remove left tank End Cover, thermostat and element covers, to expose electrical connections.

3. Connect the hot and neutral electrical connections into the terminal block.

4. Connect the electrical ground wire to the ground screw

5. Replace tank end cover.

6. Turn ON main circuit breaker.

CAUTION: To reduce the risk of electric shock or fire follow local codes.

To Element

Neutral

Ground

Anode

Hot

Element

Thermostat

CAUTION:

Ensure the water heater tank is full of water before the main is turned on.

Complete System Installation

1. Insulate all plumbing lines. See page 16 for details

2. Replace tiles or other roofing to cover straps, etc, as necessary.

3. Remove and dispose of packing materials and leave area clean and neat.

4. Instruct homeowner regarding system operation and features.

5. Complete Post-Installation Checklist.

Detail of Electrical Connections

Safety Precautions

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 or the Care and Cleaning section, it is recommended that a qualified person or serviceman perform the work.

Operating the water heater. Installation Checklist

CAUTION: Hydrogen gas can be produced in a hot water system served by this water heater that has not been used for a long period of time (generally two weeks or more). HYDROGEN GAS IS EXTREMELY FLAMMABLE!! To dissipate such gas and to reduce risk of injury, it is recommended that the hot water faucet be opened for several minutes at the kitchen sink before using any electrical appliance connected to the hot water system. If hydrogen is present, there will be an unusual sound such as air escaping through the pipe as the water begins to flow. Do not smoke or use an open flame near the faucet at the time it is open.

Safety Controls

The water heater is equipped with a combination thermostat and temperature limiting control (ECO) that is located above the heating element in contact with the tank surface. If for any reason the water temperature becomes excessively high, the temperature limiting control (ECO) breaks the power circuit to the heating element. Once the (ECO) breaks, it must be replaced.

CAUTION: The cause of the high temperature condition must be investigated by qualified service technician and corrective action must be taken before placing the water heater in service again.

To replace the temperature limiting control:

Turn off the power to the water heater.

Remove the jacket access panel(s).

Remove the old thermostat and replace it with a new one.

WARNING: If the water heater has been subjected to flood, fire, or physical damage, turn off power and water to the water heater.

Do not operate the water heater again until it has been thoroughly checked by qualified service personnel.

If adjustment is necessary…

Turn off the power to the water heater.

Remove the jacket access panel.

Using a small screwdriver, set the thermostat dial pointer to the desired temperature.

Replace the jacket access panel. Turn on the power to the water heater.

8 0

EWT1L2

S-2

IFF

EC O : 83

10MAY2002

CS6209N

240 V a c 30A

ROBERTSHA

Time/Temperature Relationship in Scalds

Temperature Time To Produce a Serious Burn

120°F More than 5 minutes 125°F 11/2 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 11/

2 seconds

155°F About 1 second

Table courtesy of Shriners Burn Institute

DANGER: There is a hot water scald potential if the thermostat is set too high. Households with small children, disabled, or elderly persons may require a 120°F or lower thermostat setting to prevent contact with HOT water.

Water Temperature Setting

The temperature of the water in the water heater can be regulated by setting the temperature dial of the adjustable surface mounted thermostat located behind the jacket access panel.

Safety and energy conservation are factors to be considered when selecting the water temperature setting of the water heater’s thermostat. The lower the temperature setting, the greater the savings in energy and operating costs.

To comply with safety regulations the thermostat are factory set at 120°F or less where local codes require. This is the recommended starting point.

Water temperatures above 125°F can cause severe burns or death from scalding. Be sure to read and follow

the warnings outlined in this manual and on the label on the water heater. This label is located on the water heater near the thermostat access panel.

Mixing valves for reducing point of use water temperature by mixing hot and cold water in branch water lines are available. Contact a licensed plumber or the local plumbing authority for further information.

The chart below may be used as a guide in determining the proper water temperature for your home.

Thermostat

Dial Pointer

Anode Rod

This water heater is equipped with an anode rod designed to prolong the life of the glass lined tank. The anode rod is slowly consumed, thereby eliminating or minimizing corrosion of the glass lined tank.

Water sometimes contains a high sulfate and/or mineral content and together with cathodic protection process can produce a hydrogen sulfide, or rotten egg odor in the heated water. Chlorination of the water supply should minimize the problem.

NOTICE: Do not remove the anode rod from the water heater’s tank, except for inspection and/or replacement, as operation with the anode rod removed will greatly shorten the life of the glass lined tank and will exclude warranty coverage.

Routine Preventative Maintenance

Properly maintained, your solar water heater system 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 made by service personnel qualified in appliance repair.

At least Quarterly:

1. Clean collector glass periodically to remove accumulated dust and dirt.

2. Trim trees near collectors.

At least annually:

1. Lift and release the lever handle on the temperature and pressure relief

valve, located on the left side of the thermosiphon tank, to make certain the valve operates freely. Allow several gallons to flush through the discharge line. Make certain the discharged water is directed to an open drain.

At least every three to five years:

1. Check all valves and electrical equipment.

2. The anode rod should be removed from the water heater’s tank for inspection and replaced when more than 6″ of core wire is exposed at either end of the rod. See section below for additional information

Flush the tank with cold water until the pressure is relieved, some of the water is drained, and the cold water supply is turned off before removing anode rod.

3. Check fluid level in closed loop. Replace fluid if necessary.

Care and cleaning of the water heater.

Draining the Water Heater

CAUTION: Shut off power to the

water heater before draining water.

DANGER: Before manually operating the relief valve, make certain no one will be exposed to the hot water released by the valve. The water drained from the tank may be hot enough to present a scald hazard and should be directed to a suitable drain to prevent injury or damage.

In order to drain the water heater, turn off the cold water supply. Open a hot water faucet or lift the handle on the relief valve to admit air to the tank.

Attach a garden hose to the drain valve on the water heater and direct the stream of water to a drain. Open the valve.

DANGER: Before manually operating the relief valve, make certain no one will be exposed to the danger of coming in contact with the hot water released by the valve. The water may be hot enough to create a scald hazard. The water should be released into a suitable drain to prevent injury or property damage.

NOTICE: If the temperature and pressure relief valve on the hot water heater discharges periodically, this may be due to thermal expansion in a closed water system. Contact the water supplier or your plumbing contractor on how to correct this. Do not plug the relief valve outlet.

CAUTION: The collectors must be cool before washing.

CAUTION: Before

draining the thermosiphon tank, the pressure on the closed loop must be relieved or the loop may collapse.

Care and cleaning of the water heater.

Vacation and Extended Shut-Down

NOTICE: Refer to the Hydrogen Gas Caution in the Operating Instructions.

DANGER: Use extreme care to avoid falling while on a ladder or the roof. If a roof section does not appear to be solid under foot, do not subject it to any added weight until it is adequately reinforced.

Once your system has been installed and tested by the technician, it operates automatically and requires little attention. However, there are several precautions you should be aware of to ensure your complete satisfaction with the system, and some steps you must take if you are going to be away from home for a long time, and when the seasons change.

Vacations or Brief Absences

If you are going to be away from home for an extended period, two weeks or more - you may consider deactivating the system so that it does not continue to heat the water tank while hot water is not being used in the house.

Deactivating or reactivating this system requires you to access the system on your roof.

Deactivating the System

If you choose not to perform the procedures listed below, call your authorized service technician to deactivate or reactivate your system.

Deactivating the system is easy to complete in a few steps.

1. Turn OFF the power to the system at the or at the main solar breaker switch near the main power breaker box.

2. Cover the collectors with cardboard or other sturdy lightblocking material. Tie or tape the material securely so it will not blow off.

When you return, simply reverse the procedures to reactivate the system.

1. Uncover the collectors carefully to avoid scratching the surfaces.

2. Turn ON the power to the system or at the main solar breaker switch near the main power breaker box.

NOTICE: If this system is your only source of hot water, be sure you turn on the power to the backup at the circuit breaker.

This system requires about four (4) hours to heat a tank of cold water using the backup heater.

A warm tank will heat in less time.

As with any other hot water system, gas, electric or solar, you should not drink water directly from the faucet.

Severe Cold Weather, Snow or Extended Absences

If the collectors are likely to be covered with snow for an extended time, or if the system will not be used for one month or longer, the water heater and piping should be drained to prevent freezing or stagnant water. After a long shut-down period, the water heater’s operation and controls should be checked by qualified service personnel. Make certain the water heater is completely filled again before placing it in operation. Call your local dealer and arrange for a qualified service technician to perform this operation.

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 What To Do

Not enough Hot Water Solar circuit breaker tripped Reset/replace as necessary

or fuse blown

Safety Thermostat tripped Reset/replace as necessary. or malfunctioned

Faulty Backup Heating Replace Backup Heating Element Element

Hot water leak in household Locate and repair leak system

Blockage in water line Locate and correct blockages

Pipes not properly connected Correct pipe connections according to installation during installation instructions

Tank blocked with sediment Flush tank to remove sediment

Closed loop charge low Recharge closed loop

Leak in closed loop Locate and repair as necessary, recharge closed loop

Air bubbles in closed loop Recharge closed loop

Ruptured tank jacket Replace tank

Tank not level Level tank

Collectors not level Level collectors

Collectors shaded during Clear obstruction to sunlight on collectors daylight hours

Tempering Valve malfunction Repair/replace as necessary

Not enough Hot Water System circuit breaker tripped Repair/replace as necessary in the Morning or OFF or malfunctioned Following a Cloudy Day

Faulty Backup Heating Element Replace as necessary.

Too much Cold Water No T/P Valve installed Install T/P

Coming from Drain Too much pressure through Repair/replace as necessary. Line T/P Valve

Pressure build up caused by Contact water supplier or contractor on how to correct this. Thermal Expansion in a closed (Do not plug relief valve opening.) plumbing system.

Hot Water coming Faulty Thermostat Repair/ replace as necessary

from drain Line Malfunctioning T/P valve Press and release T/P valve handle to reseat valve or

Repair replace as necessary

System oversized for customer Cover the solar collector / contact Dealer.

CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating elements or

other safety devices. Refer repairs to qualified service personnel.

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 What To Do

No Hot Water Hot water tempering valve Repair/replace as necessary

fouled

Pressure imbalance (over 5 psi) Locate and repair cause of imbalance. between hot and cold water lines

Fouled pressure regulator valve Repair/replace as necessary

Cold water line blocked Repair as necessary.

Low Hot Water Fouled pressure limiting Valve Repair/replace as necessary Pressure Strainer

Water too Hot Tempering valve malfunction Repair/replace as necessary.

System oversized for customer Cover a solar collector/contact installer. requirements

Gas coming from Hot Result of system operating Run tap to allow gas to escape. Water tap but water not being used

Corroded Anode Replace

CAUTION: For your safety DO NOT attempt repair of electrical wiring, thermostats, heating

elements or other safety devices. Refer repairs to qualified service personnel

Frames

Installations using 17.5° “A” Frames

This ‘A’-Frame is not for use in areas susceptible to hurricanes. In areas susceptible to hurricanes or very high winds, a separate set of instructions and a hurricane frame mounting kit is required and available from Rheem. The hurricane frame mounting kit is suitable for with pitch and low pitch installations only.

The ‘A’ Frame kit is for use where side pitch, against pitch and low or flat

roof installations are required. The ‘A’ Frame kit is provided with 17.5° angled side frames. Fixing nails, bolts, screws and flashing material are not normally supplied by Rheem except by special arrangement. The weight of the assembled frame is approximately 110 lbs. The installations described below are for an 80 gallon, 2 collector system, however, the same procedure is applicable for all models.

The ‘A’ Frame kit consists of:

Description 47 Gallon 80 Gallon

5/16" hex set screw 16 18

5/16" washer 6 6

5/16" nut 20 22

5/16" bolt (2" long) 4 4

Coach screws 2 2

Pipe leg 2 2

'U' Bracket 2 2

Brace angle 2 2

Stainless steel straps 2 2

Tank clamp 2 2

17.5 Frame 2 2

Tank Collector Rail 1 1

Collector clamps 2 4

Collector Fixing Rail, Single Collector 1 0

Collector Fixing Rail, Two Collectors 0 1

Baseplate 2 2

Collector Fixing Rail

17.5° Frame

Brace Angle

17.5° Frame

Collector Clamps

Tank Clamp

(2)

Frames continued.....

Side Pitch Installations (Tile Roof)

Assemble the ‘A’ Frame kit and loosely bolt the baseplate to one side of the angle frame.

For installations on a roof with a pitch greater than 20°, a ‘U’ bracket and small pipe legs should be used on top of the baseplate as shown.

Note that the baseplate is positioned towards the rear of the frame to distribute the weight of the tank more evenly.

Remove several roofing tiles to expose the outer wall. Fix the ‘U’ brackets to the top of the wall plate and secure with the coach screws supplied.

Using the assembled stand in a level position, measure the required length for the pipe legs, allowing for the inside length of the pipe leg cradle.

Cut the two pipe legs the same length.

Fit the pipe legs to the ‘U’bracket using the 5/16” x 2” bolts.

Insert the pipe legs to the assembled stand and fit the 5/16 x 2” bolts.

Remove tiles from above the baseplate to expose the rafters.

Fix the two stainless steel straps onto the baseplate and fix the straps to the rafter.

Replace the tiles to the lower portion of the roof, then weather seal and overflash the penetrations through the roof.

Position the collectors centrally on the frame.

Check that the collector is level across the frame using a level.

Secure the collector in place using the collector clamps.

Fit the tank and the fittings to the frame as per the standard installation instructions.

Fit the aluminum tank clamps onto both rear and front feet of the tank base.

Against Pitch Installations (Tiled Roof)

Assemble the stand and then loosely bolt the baseplate to the frame in position.

For installations on a roof with a pitch greater than 20°, a ‘U’ bracket and small pipe legs should be used on top of the baseplate.

The frame installation proceeds following the instructions for side pitch installations, with the pipe legs located directly over a load-bearing wall.

Variations for Metal and Fibreboard Roofs

Assemble the stand and then loosely bolt the baseplate to the frame in position.

For installations on a roof with a pitch greater than 20°, a ‘U’ bracket and small pipe legs should be used on top of the baseplate.

The frame installation proceeds following the instructions for side pitch installations, with the pipe legs located directly over a load-bearing wall.

Frames continued.....

Variations for Shallow Pitch or Flat Deck Roofs

On shallow pitch roofs (less than 8°) of metal or fibreboard materials, the frame may be installed without using the pipe legs, provided that the inclination of the solar collector remains greater than 8°.

On flat roofs, the assembled frame may be installed without the baseplates.

Provided the roof material is structurally suited, the frame may be bolted directly to it.

1965

Less than 8.0°

Flashing and Roof Penetrations

Flashing of roof penetrations must meet the requirements of the local authorities. Suggested methods are shown below.

Alternative:

Clamp flashing cone in place with stainless steel hose clamp and seal to pipe leg with silicone mastic.

Pipe Leg

Overflashing Cone

(Fixed to pipe leg.)

Flashing sheet

IF YOU NEED SERVICE

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 directory, commercial listings or local utility for qualified service assistance.

2. Should your problem not be solved to your complete satisfaction, you should then contact the Manufacturer’s National Service Department at the following address:

2600 Gunter Park Drive Montgomery, Alabama 36109-1413

Phone: 1-800-432-8373. When contacting the manufacturer, the following information will be requested:

a. Model and serial number of the water heater as shown on the rating plate

attached to the jacket of the heater.

b. Address where the water heater is located and physical location. c. Name and address of installer and any service agency who performed

service on the water heater.

d. Date of original installation and dates any service work was performed. e. Details of the problems as you can best describe them. f. List of people, with dates, who have been contacted regarding your

problem.

If you need a manual in Spanish, please refer to our website:

www

.rheem.com.

Si requiere de un manual de uso y cuidado en espanol, Usted puede obtanerlo

en www

.rheem.com.

Rheem RS47-21BP, RS80-42BP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual