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#23960 

P1ge 1

WARNING

Improper installation, adjustment, alteration, 
service or maintenance can cause  serious injury 
or property damage. Refer to this manual. For 
assistance or additional  information, consult a 
qualified installer or service agency.

CAUTION

The recommended temperature for normal 
residential use is 120°F. The dial on the aquastat 
does not always reflect the out-coming water 
temperature, which could occasionally exceed 
120°F. The variation in out-coming temperature 
could be based on factors including but not 
limited to usage patterns and type of installation. 
Test your water at the tap nearest to the indirect 
water heater. 

WARNING

Hotter water increases the risk of scald  injury. 
Before adjusting the water temperature  setting, 
read this instruction manual. Temperatures at 
which injury occurs vary with the person’s age 
and the length of exposure. 
The slower reaction time of children, elderly, and 
physically or mentally challenged persons 
increases the scalding hazard to them. It is 
recommended that lower water temperatures be 
used where these exposure hazards exist. Such 
households may require a temperature setting 
less than 120°F to prevent accidental contact 
with hot water.
To lower water temperature use point-of-use 
temperature limiting devices.

WARNING

Water heater blankets are not recommended and 
will void the warranty.

THIS MANUAL HAS BEEN PREPARED  

TO  ACQUAINT YOU WITH THE INSTALLATION, 

OPERATION, AND MAINTENANCE OF  

YOUR INDIRECT WATER HEATER AND TO PROVIDE  

IMPORTANT SAFETY INFORMATION.

INSTALLER RESPONSIBILITIES

Please read all instructions thoroughly  before 
installing or placing the indirect water heater 
into service. This unit must be installed by 
 licensed or authorized installers, or technical 
personnel that service water heating equipment. 
The indirect water heater must be installed in 
 accordance with all local codes and  ordinances.
These instructions are a guide for the correct 
installation of the indirect water heater. The 
manufacturer will not be liable for damages caused 
by failure to comply with the installation and 
operating instructions outlined on the following 
pages.

CAUTION

The recommended water temperature setting for 
normal residential use is 120°F/49°C.

HANDLING

Before uncrating, check for shipping damage. 
Report any damage to your carrier. Note damage on 
bill of lading or delivery receipt and file a claim.

FAILURE TO FOLLOW THESE INSTRUCTIONS OR ALL 

APPLICABLE BUILDING CODES AND REGULATIONS 

VOIDS THE WARRANTY  

ON THIS INDIRECT WATER HEATER.

Read all instructions thoroughly before 

attempting installation or operation of your 

indirect water heater. Keep these instructions for 

future reference.
Local plumbing and electrical codes must be 
followed in the installation of this indirect water 

heater. In the absence of a local code use the 

UNIFORM PLUMBING CODE and the NFPA Code. 

Local codes may supersede instructions in this 

installation manual.
These instructions are a guide for the correct 
installation of the indirect water heater. The 

manufacturer will not be liable for damages 

caused by failure to comply with the installation 

and operating instructions outlined on the 

following pages.

Warranty and Parts List are included.

To the Consumer:

 

 

Please read these and all component  

instructions and keep for future reference.

To the Installer:

 

 

Please attach these instructions  

next to the indirect water heater.

Indirect Water Heater

 

Instruction Manual

Rev 1  5/08

Summary of Contents for Indirect Water Heater

Page 1: ...g the indirect water heater into service This unit must be installed by licensed or authorized installers or technical personnel that service water heating equipment The indirect water heater must be...

Page 2: ...Section I Specifications 3 Section II General Informations 5 Section III Pre Installation 7 Section IV Installation 9 Section V Maintenance 12 Section VI Troubleshooting 13 Section VII Parts List 14...

Page 3: ...erature setting for normal residential use is 120 F Rheem recommends a tempering valve or anti scald valve be installed and used according to the manufacturer s directions to prevent scalding STID30 2...

Page 4: ...000 202 104 000 214 111 000 STID80 188 76 000 212 91 000 224 98 000 221 97 000 233 104 000 245 112 000 257 119 000 STID120 220 76 000 244 91 000 256 98 000 253 97 000 265 104 000 277 112 000 289 119 0...

Page 5: ...ited control for domestic hot water temperature The proper temperature setting for domestic hot water use is 120 F 49 C If hotter water is required a tempering device or anti scald device must be inst...

Page 6: ...ter system When hydrogen is present there will probably be an unusual sound such as air escaping through the pipe as the water begins to flow There should be no smoking or open flame near the faucet a...

Page 7: ...F and 200 F boiler water To determine the appropriate circulator for your system follow these three steps 1 Calculate the pressure drop of all straight pipe and fittings on the supply and return at th...

Page 8: ...imum coil output assume coil output boiler output listed in Tables 2 and 3 is not met the output first hour rating of the indirect water heater will not be met at the selected flow rate To approximate...

Page 9: ...minimized A flow check valve must be installed on the return line All piping to the inlet cold and outlet hot domestic water connections should be new copper with a minimum size of 1 2 ID for models S...

Page 10: ...tion cont CHECK VALVES ZONE CIRCULATORS ISOLATION VALVES ADDITIONAL ZONES INDIRECT CIRCULATOR INDIRECT WATER HEATER TO HEATING ZONE AIR SEPARATOR AIR VENT EXPANSION TANK COLD WATER INLET BOILER CIRCUL...

Page 11: ...m circulator stays off and the boiler must light to reach high limit WIRING NOTES 1 Dashed lines indicate low voltage 24 VAC 2 Use jumper wire between terminals 1 and 3 on R845 relay THERMOSTAT SPECIF...

Page 12: ...nd at least yearly once a time interval for inspection has been developed It is recommended to check the rod s six months after the heater is installed If the anode rod had reduced in size by two thir...

Page 13: ...HFN SRZHU VXSSO 5HSODFH DV QHFHVVDU DXOW WDQN DTXDVWDW 5HSODFH DTXDVWDW RLOHU F FOHV PRUH WKDQ WLPHV SHU GD GXULQJ KRWHVW PRQWKV FHVVLYH GHPDQG 5HGXFH GHPDQG RU FRQVLGHU ODUJHU WDQN DXOW DTXDVWDW 5HSO...

Page 14: ...n VIi parts list No Description Applicable Models 1 Anode All models 2 Anode Outlet STID 30 STID 40 STID 50 3 T P Relief Valve All models 4 Drain Valve All models 5 Aquastat All models Page 14 14 2 1...

Page 15: ...nt component part s to a convenient delivery point selected by Rheem near the place the original water heater or original component part s is located such as a local Rheem water heater retailer You mu...

Page 16: ...rranty in the event warranty service is needed Reasonable proof of the date of original installation or date of original purchase of your water heater whichever came first may be required to establish...

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