Manual • Installation •
The following ratings are for Ultra Gas boilers only, with supply water temperature at 190°F. | gas |
For boilers other than Ultra Gas, see page 67 for ratings. |
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Table 3 |
| Combined space heating/water |
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| heating (see Notes) |
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Boiler | PLUS | 1st Hour | Boiler | Head losses, Feet w.c. | DHW | ||||||
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| 115°F | 140°F | GPM | Rec. | Boiler | Heater | Piping | TOTAL |
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| 40 | 160 | 124 |
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| 60 | 168 | 132 |
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Ultra- | 80 | 176 | 140 | 6.6 | 1" | 5.8 | 1.0 | 2.4 | 9.2 | 007 | |
80 | 100 | 190 | 155 | ||||||||
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| 110 | 210 | 175 |
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| 119 | 230 | 190 |
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| 40 | 203 | 141 |
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| 60 | 211 | 162 |
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Ultra- | 80 | 219 | 170 | 6.4 | 1" | 5.9 | 1.0 | 2.3 | 9.3 | 007 | |
105 | 100 | 230 | 185 | ||||||||
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| 110 | 250 | 205 |
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| 119 | 270 | 225 |
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| 40 | 238 | 153 | 8.7 | 1" | 5.7 | 1.0 | 3.9 | 10.6 | 0010 | |
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| 60 | 294 | 190 | 9.6 | 1¼" | 7.1 | 1.0 | 2.3 | 10.5 | ||
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Ultra- | 80 | 302 | 230 |
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155 | 100 | 315 | 245 | 10.8 | 1¼" | 9.0 | 1.0 | 2.8 | 12.8 | 0012 | |
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| 110 | 335 | 265 | ||||||||
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| 119 | 355 | 285 |
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| 40 | 248 | 160 | 12.0 | 1¼" | 8.2 | 1.0 | 3.4 | 12.6 | 0012 | |
| 60 | 330 | 196 | ||||||||
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Ultra- | 80 | 411 | 305 |
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230 | 100 | 440 | 335 | 13.5 | 1¼" | 10.0 | 1.0 | 4.2 | 15.2 | 0014 | |
| 110 | 460 | 355 | ||||||||
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| 119 | 480 | 375 |
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| 40 | 254 | 164 | 15.0 | 1¼" | 6.0 | 1.0 | 5.1 | 12.1 | 0012 | |
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| 60 | 351 | 208 | 18.6 | 1½" | 8.5 | 1.0 | 3.3 | 12.8 | 0011 | |
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Ultra- | 80 | 579 | 373 |
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310 | 100 | 440 | 335 | 22.0 | 1½" | 11.2 | 1.0 | 4.5 | 16.6 | 0013 | |
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| 110 | 460 | 355 | ||||||||
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| 119 | 480 | 375 |
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Table 4 |
| Dedicated | |||||||||
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| supplied with boiler (see Notes) |
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Boiler | PLUS | 1st Hour | Boiler | Head losses, Feet w.c. | Circ. | ||||||
| Model | rating, GPH | piping |
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| 115°F | 140°F | GPM | Rec. | Boiler | Heater | Piping | TOTAL |
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| 40 | 160 | 124 |
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| 60 | 168 | 132 |
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Ultra- | 80 | 176 | 140 | 6.6 | 1" | 5.8 | 1.0 | 2.4 | 9.2 | 007 | |
80 | 100 | 190 | 155 | ||||||||
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| 110 | 210 | 175 |
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| 119 | 230 | 190 |
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| 40 | 203 | 141 |
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| 60 | 211 | 162 |
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Ultra- | 80 | 219 | 170 | 6.4 | 1" | 5.9 | 1.0 | 2.3 | 9.2 | 007 | |
105 | 100 | 230 | 185 | ||||||||
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| 110 | 250 | 205 |
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| 119 | 270 | 225 |
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| 40 | 250 | 160 |
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| 60 | 295 | 220 |
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Ultra- | 80 | 305 | 230 | 12.1 | 1¼” | 11.4 | 1.0 | 4.5 | 16.9 | 0014 | |
155 | 100 | 315 | 245 | ||||||||
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| 110 | 335 | 265 |
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| 119 | 355 | 285 |
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| 40 | 240 | 170 |
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| 60 | 335 | 220 |
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Ultra- | 80 | 430 | 325 | 13.5 | 1¼” | 10.0 | 1.0 | 5.2 | 16.2 | 0014 | |
230 | 100 | 440 | 335 | ||||||||
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| 110 | 460 | 355 |
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| 119 | 480 | 375 |
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| 40 | 240 | 170 |
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| 60 | 335 | 220 |
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Ultra- | 80 | 580 | 410 | 18.3 | 1½” | 8.3 | 1.0 | 4.2 | 13.5 | 0014 | |
310 | 100 | 590 | 435 | ||||||||
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| 110 | 610 | 465 |
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| 119 | 630 | 485 |
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Notes Tables 3 and 4
1.First hour ratings in Tables 3 and 4 are based on:
•115°F or 140°F domestic outlet water supply temperature from water heater.
•50°F domestic water inlet temperature.
•190°F boiler water temperature leaving Gas boiler.
•Circulator and pipe sizes as given in the Tables.
2.If the net Btu/hr rating of the boiler is close to the space heating load (for combined systems)
— or if there is an unusually large demand for domestic water — increased boiler capacity may be required.
Part Number
Figure 16 Pump curves for Taco circulators |
29 |