Rheem 115, 175 User Manual
Commercial Storage Tanks
Available in 80, 115 and 175 Gallon 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 temperature porcelain enamel
to maximize corrosion
resistance resulting in a
superior tank design. Two
heavy duty magnesium
anode rods are installed for
longer tank life.
• Space saving design –
unlike other storage tanks,
the ST80 and ST120 can
pass through a 30" opening
and the ST175 only
requires a 33" opening –
ideal for boiler room doors.
• Efficient design –
2" of rigid polyurethane
foam insulation provides
superior insulating qualities
resulting in reduced operating costs. Our patented
process of injecting foam
into the insulating cavity
adds additional durability
and toughness to the baked
enamel steel outer jacket.
• Tank openings –
circulating line connections
and hot outlet are 2" NPT
on the ST80 and ST120
and 2-1/2" NPT on the
ST175. Other openings are
provided for relief valve and
temperature control.
ST175 equipped with a
hand-hole cleanout.
ASME Models
Available
Certifications and Ratings:
•
Efficiency – these models meet or exceed thermal efficiency and
standby loss requirements of current ASHRAE standards. (Part of the
Federally mandated Energy Policy Act (EPact)).
•
Optional construction – ASME construction is available on all
storage tank models. Model numbers are ST80A, ST120A and
ST175A
•
T&P valve – must be ordered separately based on water heater
BTU input.
Continued on reverse.
COMMERCIAL
WATER HEATERS
Commercial Storage Tanks continued.
DIMENSIONAL INFORMATION (All dimensions shown in English and Metric)
MODEL
NUMBER UNITS AB C DOUTLET SIDE STD. ASME
WATER CONNECTIONS APPROXIMATE
TOP FRONT
ST80(A) inches 58-5/16 24-7/16 13-3/16 6-3/16 2 2 220 lbs. 260 lbs.
mm 1481 621 335 157 51 51 100 kgs. 118 kgs.
ST120(A) inches 59-1/4 28-1/4 11-1/16 4-1/16 2 2 300 lbs. 340 lbs.
mm 1505 718 281 103 51 51 136 kgs. 154 kgs.
ST175(A) inches 67-1/4 32-1/4 12-9/16 5-9/16 2-1/2 2-1/2 600 lbs. 600 lbs.
mm 1708 819 319 141 64 64 272 kgs. 272 kgs.
NOTE: 1" NPT drain opening on ST175(A). Handhole cleanout on ST175(A) only.
APPROXIMATE WIDTH REQUIRED FOR
MANIFOLDED STORAGE TANKS
MANIFOLD
TYPE UNITS MANIFOLD KITS MANIFOLD KITS ST175(A)
Duplex inches 54 58 66
mm 1372 1473 1676
Triplex inches 82 87 102
mm 2083 2210 2591
Quadruplex inches 108 116 137
mm 2743 2946 3480
WITH FACTORY WITH FACTORY
(Shown in English and Metric)
ST80(A) ST120(A)
HOT OUTLET
OPENING
SHIPPING WEIGHT
1" NPT
RELIEF VALVE
OPENING
HOT
B
3/4" NPT
THERMOMETER
OPENING
TANK INFORMATION (Shown in English and Metric)
MODEL
TANK CAPACITY PRESSURE
NUMBER GALLONS LITERS STD. ASME
ST80(A) 80 303 150 PSI 125 PSI
1034 kPa 862 kPa
ST120(A) 115 435 150 PSI 160 PSI
1034 kPa 1103 kPa
ST175(A) 175 662 150 PSI 150 PSI
1034 kPa 1034 kPa
MAXIMUM WORKING
3/4" NPT
AQUASTAT
OPENING
OPENINGS
FOR
CIRCULATING
LINES
D
A
C
Recommended Specifications:
Storage Tank(s) shall be model ________________, manufactured by RHEEM-RUUD. Storage Tank(s) shall have
a storage capacity of ________ gallons. Tank(s) interior shall be double coated with a high temperature porcelain
enamel and furnished with two magnesium anode rods rigidly supported. Tank(s) shall have a working pressure
rating of _______ psi, and shall be completely assembled. Tank(s) shall be insulated with 2" of rigid polyurethane
foam insulation. Storage Tank(s) shall be covered by a five year limited warranty against tank leaks.
ADD FOR ASME CONSTRUCTION
Storage Tank(s) shall be constructed in accordance with the requirements of the ASME Boiler Pressure Vessel
Code, Section IV Part HLW.
Limited Warranty
This product features a five year limited warranty against tank leaks.
Please refer to Commercial Warranty Information brochure
for complete warranty information.
In keeping with its policy of continuous progress and product improvement, Rheem-Ruud reserves the right to make changes without notice.
Rheem Water Heating • 101 Bell Road, Montgomery, Alabama 36117-4305 • www.rheem.com
Rheem Canada Ltd./Ltée,128 Barton Street West, Hamilton, Ontario L8N 3P3
PRINTED IN U.S.A 01/07 WP FORM NO. RR102C-3 Rev. 9
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