Rheem 75 User manual

Indirect Water Heaters
Availa le in 30, 38, 45, 75 and 110 Gallon Models
Rheem-Ruud’s indirect coil tank water heaters offer a cost effective water
heating alternative. hese units use indirect water-to-water heat transfer by
circulating boiler-fed hot water through a coil inside the water tank. hey’re
ideal for applications that use boilers for space heating.
Construction Features:
• Built to last –
tank is manufactured from heavy
gauge steel. Longer life equals a
higher “return on investment”.
Outer jacket is made from steel
and powder coated for a lasting,
durable finish.
• High temperature porcelain
enamel protects all tank
and coil –
and maximizes corrosion
resistance.
• Factory installed automatic
temperature controls –
immersion aquastat on all models.
• Factory installed rass
drain valve
• Sediment reduction inlet –
standard on the S ID80 and
S ID120. Reduces sediment
buildup on the tank bottom –
increasing operating efficiencies
and tank life.
• Temperature and pressure
relief valve –
CSA/ASME rated and factory
installed.
• 1-1/2" Coil diameter –
larger diameter, results in higher
recovery and less pressure drop
through the coil – smooth surface
on the coil resists lime build-up.
• 2" Non-CFC foam insulation –
provides superior insulating quality
and decreases standby heat loss.
• Two heavy-duty magnesium
anode rods –
inhibit corrosion and maximize
tank life.
• Factory installed
dielectric nipples –
provide greater insulating
protection against electrolysis.
Continued on reverse.
ested in accordance with GAMA Indirect-Fired Water Heating Standard
IWH- S-1 – March 2003.

DIMEN IONAL INFORMATION
APPROX.
MODEL HIPPING
NUMBER UNIT ABCDEFGH WEIGHT
ST D30 inches 22 35-3/4 27-3/4 18-1/2 11-3/4 6-1/2 4-1/2 N/A 180 lbs
ST D40 inches 22 42-3/4 34-3/4 31-1/2 16-3/4 6-1/2 4-1/2 N/A 226 lbs
ST D50 inches 22 48-3/4 39-3/4 31-1/2 16-3/4 6-1/2 4-1/2 N/A 231 lbs.
ST D80 inches 24 64-1/8 57-1/8 33 19-1/4 855 297 lbs.
ST D120 inches 28 65-1/4 57-3/4 33-3/4 16-1/4 8-3/4 5 6-1/2 397 lbs.
Rheem Water Heating • 101 Bell Road, Montgomery, Alabama 36117-4305 • www.rheem.com
P R I N E D I N U . S . A 0 5 / 0 8 W P F O R M N O . R R 1 0 2 C - 3 I D
In keeping with its policy of continuous progress and product improvement, Rheem-Ruud reserves the right to make changes without notice.
Indirect Coil Tank continued.
STID80 & STID120
FIR T HOUR RATING (gal) @ Coil Output (Btu/hr)
TANK FIR T HEAT OURCE
MODEL CAPACITY DRAW FRICTION LO * 180°F, 180°F, 180°F, 200°F, 200°F, 200°F,
NUMBER (GAL) (GAL) (FT. W.C.) 8 GPM** 10 GPM** 12 GPM** 8 GPM** 10 GPM** 12 GPM**
ST D30 30 25 2 110 @ 55,000 114 @ 57,000 117 @ 59,000 132 @ 69,000 136 @ 71,000 139 @ 73,000
ST D40 38 33 3 153 @ 77,000 165 @ 84,000 177 @ 92,000 183 @ 96,000 195 @ 104,000 207 @ 111,000
ST D50 45 40 3 160 @ 77,000 172 @ 84,000 184 @ 92,000 190 @ 96,000 202 @ 104,000 214 @ 111,000
ST D80 75 70 5 200@83,000 212 @ 91,000 224 @ 98,000 233 @ 104,000 245 @ 112,000 257 @ 119,000
ST D120 110 102 5 232@83,000 244 @ 91,000 256 @ 98,000 265 @ 104,000 277 @ 112,000 289 @ 119,000
All data obtained through testing in accordance with GAMA ND RECT-F RED WATER HEATERS TEST NG STANDARD WH-TS-1_MARCH 2003
*At 8 GPM
**Coil nput (temperature, flow rate). Ratings based on 77°F rise with 58°F inlet potable water.
Note: First Hour Rating = First Dray + Continuous Draw
Warning: nstallation should be in accordance with all national and/or local codes.
n the absence of local codes, refer to NFPA 54 or ANS Z.21.10.1.
Caution: The recommended maximum hot water temperature 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.
Pressures (all): Test pressure, 300 psi; working pressure, 150 psi
tandard Voltage (all): 120V, 60 Hz, 1P
T&P valve installed
STID30, STID40
& STID50
GH A
E
F
D
C
B
Cold Inlet, 1" NPT
Hot Outlet,
1-1/2" NPT
Anode Rod
Anode
Rod
T&P Relief Valve
From Boiler,
1" NPT
To Boiler,
1"NPT
Drain Valve
Aquastat
G
Cold Inlet,
3/4" NPT
Hot Outlet/
Anode Rod,
3/4" NPT
Anode Rod
Aquastat
T&P Relief Valve
From Boiler, 1" NPT
To Boiler,
1" NPT
Drain Valve
F
D
C
E
B
A
WATER HEATERS
Limited Warranty
his product features a six year limited warranty against tank leaks when installed in
residential applications and three year limited warranty against tank leaks when
installed in non-residential applications. Please refer to the Warranty Information
document for complete warranty information.