Page 4
NOTES:
* Based on 77°F rise with 58°F potable water inlet temperature at 14 GPM heat source flow rate. Heat source temperature was 180°F.
** Minimum Coil output based on continuous boiler operation over 30 minutes. See Section III for additional considerations.
All data obtained through testing in accordance with GAMA INDIRECT-FIRED WATER HEATER TESTING STANDARD IWH-TS-1_MARCH 2003
STID30
30
1.4
119
92
27
59,000
1.5
2.3
STID40
38
2.3
198
165
33
105,000
1.5
3.4
STID50
45
2.3
205
165
40
105,000
1.1
3.4
STID80
75
2.8
259
189
70
120,000
0.8
3.5
STID120
110
2.8
291
189
102
120,000
1.2
3.5
Model
Actual
Tank
Volume
(gal)
Coil
Volume
(gal)
First
Hour
Rating
(gal)*
Continuous
Draw
Rating
(GPH)*
First
Draw
Rating
(gal)*
Minimum
Coil
Output
(BTU/Hr)**
Standby
Loss
Rating
(°F/hr)
Heat
Source
Friction
Loss
(ft.
w.c.
)
Table 2: Capacity & Performance
C a p a c i t i e s
SECTION I: SPECIFICATIONS (cont .)
NOTES:
First Hour Rating = First Draw + Continuous Draw
* Coil Input (temperature, flow rate). Ratings based on 77°F rise with 58°F inlet potable water.
All data obtained through testing in accordance with GAMA INDIRECT-FIRED WATER HEATER TESTING STANDARD IWH-TS-1_MARCH 2003
STID30
117 @ 57,000
183 @ 96,000
190 @ 96,000
245 @ 111,000
277 @ 111,000
118 @ 58,000
191 @ 101,000
198 @ 101,000
254 @ 117,000
286 @ 117,000
138 @ 71,000
214 @ 115,000
221 @ 115,000
277 @ 132,000
309 @ 132,000
144 @ 75,000
226 @ 123,000
233 @ 123,000
292 @ 141,000
324 @ 141,000
149 @ 78,000
235 @ 129,000
242 @ 129,000
304 @ 149,000
336 @ 149,000
154 @ 81,000
243 @ 134,000
250 @ 134,000
314 @ 155,000
346 @ 155,000
STID40
173 @ 89,000
STID50
180 @ 89,000
STID80
233 @ 104,000
STID120
265 @ 104,000
Model
Table 3: Performance (cont.)
FIRST HOUR RATING (gal) @ COIL OUTPUT (Btu/hr)
P e r f o r m a n c e
180°F
8
GPM*
180°F
10
GPM*
180°F
12
GPM*
200°F
8
GPM*
200°F
10
GPM*
200°F
12
GPM*
200°F
14
GPM*
115 @ 56,000
