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PROMAX
MODELS
• Installation
• Operation
• Maintenance
Fill in the Rating Pate Information Here:
MODEL NO.________________________________________
SERIAL NO.________________________________________
INSTALLATION DATE________________________________
Fill in the Installation Information Here:
INSTALLER________________________________________
STREET ADDRESS__________________________________
CITY/STATE/ZIP_____________________________________
PHONE #__________________________________________
PRINTED IN THE U.S.A. 0804
CIRCULATING LOOP HEAT EXCHANGER
®
XL
Month
Day
Year
SAVE THIS MANUAL FOR FUTURE REFERENCE.
www.aosmithwaterheaters.com
PLEASE READ THOROUGHLY BEFORE INSTALLING AND
USING THIS APPLIANCE.
DISTRIBUTOR________________________________________
STREET ADDRESS__________________________________
CITY/STATE/ZIP_____________________________________
PHONE #__________________________________________
1
MANUAL
CAUTION
PART NO. 184911-000
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Table of Contents
Related Manuals for A.O. Smith RXLD-52
Summary of Contents for A.O. Smith RXLD-52
- Page 1 CIRCULATING LOOP HEAT EXCHANGER MANUAL ® PROMAX MODELS • Installation • Operation • Maintenance Fill in the Rating Pate Information Here: MODEL NO.________________________________________ SERIAL NO.________________________________________ CAUTION PLEASE READ THOROUGHLY BEFORE INSTALLING AND INSTALLATION DATE________________________________ USING THIS APPLIANCE. Month Year Fill in the Installation Information Here: DISTRIBUTOR________________________________________ INSTALLER________________________________________ STREET ADDRESS__________________________________...
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Page 2: Table Of Contents
GENERAL INFORMATION This manual contains instructions for the installation, operation attempted to be, modified or altered in any way, including, but ® and maintenance of the Promax XL Heat Exchanger. Read it not limited to, by attaching non-Company approved appliances carefully before installing or using and keep it for future reference. -
Page 3: Selecting Equipment
SELECTING EQUIPMENT The Promax XL heat exchanger systems are rated at “Nominal” as specifications are subject to change. Next find the target conditions. Their actual performance may vary significantly capacity on the horizontal axis of the heat exchanger based on application. System design should be undertaken only performance tables on page 4. -
Page 4: Heat Exchanger Performance
HEAT EXCHANGER PERFORMANCE Heat exchanger temperature differentials (Delta T) are shown for reference only. Actual values can be calculated by: Delta T = Btuh/500/gpm This will determine the difference between the heat exchanger’s inlet and outlet water temperatures (Delta T). -
Page 5: Typical Installation
TYPICAL INSTALLATION System piping is application dependent. The diagrams shown reflect typical piping for the most simplistic installations. Slab and tile floor heating often require limit controls to insure fluid temperature limits are not exceeded. Refer to guidelines provided by the Hydronic Applications supplier and/or the Radiant Panel Association to avoid piping and control pitfalls. -
Page 6: Wiring
Side Loop Water Heater with Air Handler and Heat Exchanger FIGURE 5 WIRING 115V/60 Hz and is equipped with a control relay located inside removed. All wiring in the pump’s termination box should be the wiring termination box on the pump. This relay has a 24 volt rated for 60°C or greater, and is to be done in accordance with coil for low voltage control applications. -
Page 7: Mounting The Heat Exchanger
Mounting the Heat Exchanger fitting onto the lower PEX nipple and tighten the union nut firmly by hand, see Figure 7. Set the heat exchanger on the return to All Models fitting, see Figure 8. Then connect the supply fitting and rotate it so that the pipe contacts the pump., see Figure 9. -
Page 8: Replacement Parts
REPLACEMENT PARTS PROMAX Item Description 1 ... Angle Fixed Support..............................184908-000 2 ... Angle Sliding Support ............................... 184907-000 3 ... Back Cover, Single wall (Models RXLS 28 & RXLS 52) ....................... 184905-000 Double wall (Models RXLD 28 & RXLD 52) ......................184909-000 4 ...