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DIMENSIONAL INFORMATION
APPROX.
MODEL SHIPPING
NUMBER UNITS ABCDEFGH
WEIGHT
STID30 inches 22 35-3/4 27-3/4 18-1/2 11-3/4 6-1/2 4-1/2 N/A 180 lbs
STID40 inches 22 42-3/4 34-3/4 31-1/2 16-3/4 6-1/2 4-1/2 N/A 226 lbs
STID50 inches 22 48-3/4 39-3/4 31-1/2 16-3/4 6-1/2 4-1/2 N/A 231 lbs.
STID80 inches 24 64-1/8 57-1/8 33 19-1/4 855 297 lbs.
STID120 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
PRINTED IN U.S.A 05/08 WP FORM NO. RR102C-3ID
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
FIRST HOUR RATING (gal) @ Coil Output (Btu/hr)
TANK FIRST HEAT SOURCE
MODEL CAPACITY DRAW FRICTION LOSS* 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**
STID30 30 25 2 110 @ 55,000 114 @ 57,000 117 @ 59,000 132 @ 69,000 136 @ 71,000 139 @ 73,000
STID40 38 33 3 153 @ 77,000 165 @ 84,000 177 @ 92,000 183 @ 96,000 195 @ 104,000 207 @ 111,000
STID50 45 40 3 160 @ 77,000 172 @ 84,000 184 @ 92,000 190 @ 96,000 202 @ 104,000 214 @ 111,000
STID80 75 70 5 200@83,000 212 @ 91,000 224 @ 98,000 233 @ 104,000 245 @ 112,000 257 @ 119,000
STID120 110 102 5 232@83,000 244 @ 91,000 256 @ 98,000 265 @ 104,000 277 @ 112,000 289 @ 119,000
A
ll data obtained through testing in accordance with GAMA INDIRECT-FIRED WATER HEATERS TESTING STANDARD IWH-TS-1_MARCH 2003
*
At 8 GPM
**Coil Input (temperature, flow rate). Ratings based on 77°F rise with 58°F inlet potable water.
Note: First Hour Rating = First Dray + Continuous Draw
Warning: Installation should be in accordance with all national and/or local codes.
In the absence of local codes, refer to NFPA 54 or ANSI 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
Standard 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/
A
node 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
This 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.