Rheem Outdoor Storage Commercial StorageTanks User Guide

Commercial Storage Tanks  
Available in 115 and 175 U.S. Gallon/435 and 662 Litre Models  
Rheem-Ruud commercial storage tanks are vertical tanks  
designed for applications that require large quantities of hot water  
in short periods of time. When used in tandem with Rheem-Ruud  
commercial water heating equipment, these storage tanks  
provide the flexibility needed for many Commercial applications.  
Installed individually, or in parallel manifold, these storage tanks  
can provide 80% draw capability without an appreciable  
temperature decrease in single temperature applications.  
Construction Features:  
• Long life tank design –  
proprietary steel formulation  
with two coats of high tem-  
perature porcelain enamel  
to maximize corrosion  
resistance resulting in a  
superior tank design. Two  
heavy duty magnesium  
anode rods are installed for  
longer tank life.  
Tank openings –  
circulating line connections  
and hot outlet are 2" NPT  
on the ST120 and 2-1/2"  
NPT on the ST175. Other  
openings are provided for  
relief valve and temperature  
control.  
ST175A equipped with a  
hand-hole cleanout.  
• Space saving design –  
unlike other storage tanks,  
the ST120 can pass  
through a 30" opening and  
the ST175 only requires a  
33" opening – ideal for  
boiler room doors.  
Factory manifold kits –  
factory kits are available for  
the ST120 model. Copper  
sweat fittings and tubing are  
precut and packaged at the  
factory. Each component is  
identified for ease of assembly  
and installation. This method  
will assure that multiple tanks  
(2, 3 or 4) will perform as a  
single unit and give the advan-  
tage of extreme flexibility.  
• Efficient design –  
2" of rigid polyurethane  
foam insulation provides  
superior insulating qualities  
resulting in reduced operat-  
ing costs. Our patented  
process of injecting foam  
into the insulating cavity  
adds additional durability  
and toughness to the baked  
enamel steel outer jacket.  
Certifications and Ratings:  
Efficiency these models comply with ASHRAE 90.1b-1992  
(Part of the Federally mandated Energy Policy Act (EPact).  
Continued on reverse.  
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