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To the Installer:
To the Consumer:
Please attach these instructions
Please read these and all component
next to the indirect water heater.
instructions and keep for future reference.
Indirect Water Heater
Instruction Manual
Warranty and Parts List are included.
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
WARNING
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TABLE OF CONTENTS Section I: Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 . Section II: General Informations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 . Section III: Pre-Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 . Section IV: Installation . . . . . . . . . . . . . . . . . . .
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SECTION I: SPECIFICATIONS Anode Rod Hot Outlet/ Anode Rod, Hot Outlet, Cold Inlet, 1 1/2" NPT 3/4" NPT 3/4" NPT Anode Anode Rod Rod T&P Relief Valve T&P Relief Valve From Boiler Supply, 1" NPT From Boiler Supply, 1" NPT Aquastat B B C Aquastat C Drain Valve D To Boiler D Return, 1" NPT To Boiler E Return, G 1"NPT E F F Drain H G A Valve A Cold Inlet, 1" NPT Figure 1: STID30, STID40, STID50 Figure 2: STID80, STID120 Table 1: Dimensions Dimensions Model 1 3 1 3 1 1 STID30 22´´ 35 /4´
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SECTION I: SPECIFICATIONS (cont .) Table 2: Capacity & Performance Performance Capacities Model STID30 30 1.38 110 85 25 55,000 1.3 2.0 STID40 38 2.30 153 120 33 77,000 1.1 3.0 STID50 45 2.30 160 120 40 77,000 1.0 3.0 STID80 75 2.76 200 130 70 83,000 0.9 5.0 STID120 110 2.76 232 130 102 83,000 1.2 5.0 NOTES: * Based on 77°F rise with 58°F potable water inlet temperature at 8 GPM heat source flow rate. Heat source temperature was 180°F. ** Minimum Coil output based on continuous boiler operati
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SECTION II: GENERAL INFORMATION loCa TIon The indirect water heater should be located in a central location to the piping system, as close as practical to the boiler and in an area not subject to freezing temperatures. Leave sufficient space for servicing and maintaining the indirect water heater. NOTICE: Long heating supply runs can lengthen recovery times. WaTer Trea TmenT/fIl Tra TIon In areas where poor water conditions are suspected (i.e. lime, iron, and other minerals), it is essential
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SECTION II: GENERAL INFORMATION (cont .) anode rods The anode rod is used as a sacrificial element within the volume of the storage tank. The purpose of the magnesium anode rod is to protect the inside of the tank against corrosion. Anode rods should be inspected twice in the first year and at least yearly once a time interval for inspection has been developed. Water conditions can influence the consumption rate of the anode rods. Please see the Maintenance section of this manual for ins
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SECTION III: PRE-INSTALLATION boIler and CIrCula Tor sIzIng The ratings published in this manual for your Rheem indirect water heater can be obtained through proper selection of boiler output and circulator capacity. As noted, the ratings in Table 2 are based on a 77°F rise with 58°F potable water inlet temperature at a circulator pump flow rate of 8 GPM. The boiler was set at 180°F. See Table 3 for additional first hour ratings at pump flow rates of 6, 8, 10 and 12 GPM with 180°F and 200
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SECTION III: PRE-INSTALLATION (cont .) UP 15-42F/FR Closed Systems, 60 Hz Figure 4: GRUNDFOS UP 15-42F performance curve UP 26-64F Closed Systems, 60 Hz Figure 5: GRUNDFOS UP 26-64F performance curve NOTICE: Zone valves on the heat source supply to the indirect water heater are not recommended and will drastically reduce performance. System performance can also vary based on the heating capacity of the boiler. If the minimum coil output (assume coil output = boiler output) listed in Tables 2
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SECTION IV: INSTALLATION WaTer ConneCTIons All piping between the boiler and the indirect water heater should be new copper with a minimum size of 3/4” ID for models STID30, STID40, and STID50. Use 1” minimum copper for models STID80 and STID120. Elbows should be 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 STID30, STID40, an
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SECTION IV: INSTALLATION (cont .) See Figure 8 for piping your Rheem indirect water heater to a low-mass boiler (diagram recommended by boiler manufacturer). TO HEATING ZONE FROM HEATING ZONE CHECK VALVES ZONE CIRCULATORS ISOLATION VALVES ISOLATION AIR VALVES LESS THAN (4) SEPARATOR PIPE DIAMETERS AIR VENT ADDITIONAL ADDITIONAL ZONES ZONES INDIRECT CIRCULATOR INDIRECT WATER EXPANSION HEATER TANK COLD WATER INLET BOILER Figure 8: Rheem Indirect Water Heater with Low-Mass Boiler Page 10 BOILER
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SECTION IV: INSTALLATION (cont .) eleCTrICal ConneCTIons Figure 9: Boiler Maintaining 180°F Figures 9 and 10 are general wiring diagrams. Indirect For a maintaining temperature boiler, Figure 9 Circulator should closely match your system. For cold start Indirect boilers your wiring may resemble Figure 10, but will Aquastat vary depending on the boiler type and controls or relays used. It is not possible to list all wiring L1 HOT v ariations here. When connecting to a cold start boiler,
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SECTION V: MAINTENANCE WaTer pIpIng On an annual basis, all piping should be checked for leakage at joints, shut-off valves, and unions. T&p relIef al v ve On an annual basis, the temperature and pressure relief valve should be checked for proper operation. First, attach a drain line to the valve to direct the water discharge to an open drain. This is very important because the temperature of the discharge could be very hot. Second, lift the lever at the end of the valve several times. T
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SECTION VI: TROUBLESHOOTING Page 13
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SECTION VII: PARTS LIST 2 1 3 5 4 14 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
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LIMITED WARRANTY For Rheem/Ruud™ Indirect Water Heaters. GENERAL This Limited Warranty is only available to the original owner of this water heater . It is not transferable . The Rheem Water Heater Operation of Rheem Manufacturing Company (Rheem) warrants this water heater, and its component parts, to be free from defects in ® materials and workmanship, under normal use and service, for the Applicable Warranty Period . At its option, Rheem will repair or replace the defective water heater, o
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EXCLUSIVE WARRANTY – LIMITATION OF LIABILITY This Limited Warranty is the only Warranty given by the manufacturer, the Rheem Water Heater Operation of Rheem Manufacturing Company, for this unit . No one is authorized to make any other warranties on behalf of the manufacturer . ANY IMPLIED WARRANTIES, INCLUDING MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE, SHALL NOT EXTEND BEYOND THE APPLICABLE WARRANTY PERIODS SPECIFIED PREVIOUSLY. THE MANUF ACTURER’S SOLE LIABILITY, WITH RESPECT T
