Gas Line Connection Size
Table 1
† MODEL | SERIES | NATURAL GAS | PROPANE GAS |
SUF 60 120 | 100/101 | 3/4 "NPT | 3/4 "NPT |
SUF 100 150 | 100/101 | 3/4 "NPT | 3/4 "NPT |
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SUF 100 199 | 100/101 | 3/4 "NPT | 3/4 "NPT |
SUF 100 250 | 100/101 | 3/4 "NPT | 3/4 "NPT |
†Depending on the installed equivalent length, and/or the number of appliances connected, the supply gas line size may have to be increased beyond the minimum required sizes - see Gas Line Sizing on page 39.
Recovery Capacities
Table 3
Storage Capacities
Table 2
MODEL | U. S. GALLONS | LITERS |
SUF 60 120 | 60 | 227 |
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SUF 100 150 | 100 | 379 |
SUF 100 199 | 100 | 379 |
SUF 100 250 | 100 | 379 |
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| U. S. Gallons/hr & litters/hr at temperature rise indicated |
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Model | Type of | Input |
| °F | 30°F | 40°F |
| 50°F | 60°F | 70°F | 80°F | 90°F | 100°F | 110°F | 120°F |
| 130°F | 140°F |
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Gas | Btu/hr | kW | °C | 17°C | 22°C |
| 28°C | 33°C | 39°C | 44°C | 50°C | 56°C | 61°C | 67°C |
| 72°C | 78°C | |
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SUF 60 120 | Natural | 120,000 | 35 | GPH | 461 | 345 |
| 276 | 230 | 197 | 173 | 154 | 138 | 126 | 115 |
| 106 | 99 |
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Propane | LPH | 1744 | 1308 |
| 1046 | 872 | 747 | 654 | 581 | 523 | 476 | 436 |
| 402 | 374 | |||
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SUF 100 150 | Natural | 150,000 | 44 | GPH | 576 | 432 |
| 345 | 288 | 247 | 216 | 192 | 173 | 157 | 144 |
| 133 | 123 |
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Propane | LPH | 2179 | 1635 |
| 1308 | 1090 | 934 | 817 | 726 | 654 | 594 | 545 |
| 503 | 467 | |||
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SUF 100 199 | Natural | 199,900 | 58 | GPH | 767 | 575 |
| 460 | 384 | 329 | 288 | 256 | 230 | 209 | 192 |
| 177 | 164 |
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Propane | LPH | 2904 | 2178 |
| 1743 | 1452 | 1245 | 1089 | 968 | 871 | 792 | 726 |
| 670 | 622 | |||
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SUF 100 250 | Natural | 250,000 | 73 | GPH | 960 | 720 |
| 576 | 480 | 411 | 360 | 320 | 288 | 262 | 240 |
| 221 | 206 |
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Propane | LPH | 3632 | 2724 |
| 2179 | 1816 | 1557 | 1362 | 1211 | 1090 | 991 | 908 |
| 838 | 778 | |||
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Recovery capacities are based on 95% thermal efficiency.
Locating The Water Heater
Carefully choose a location for the new water heater. The placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance.
CAUTION
Property Damage Hazard
•All water heaters eventually leak.
•Do not install without adequate drainage.
Whether replacing an existing water heater or installing the water heater in a new location observe the following critical points:
1.The water heater must be located indoors.
2.The water heater must not be located in an area where it will be subject to freezing temperatures.
3.Locate the water heater so it is protected and not subject to physical damage by a moving vehicle.
4.Locate the water heater on a level surface.
5.Locate the water heater near a floor drain. The water heater should be located in an area where leakage of the tank or connections will not result in damage to the area adjacent to the water heater or to lower floors of the structure. When such locations cannot be avoided, it is recommended that a metal drain pan, adequately drained, be installed under the appliance.
6.Locate the water heater close to the point of major hot water usage.
7.Locate the water heater close to a 120 VAC power supply. See Power Supply on page 14 for requirements.
8.Locate the water heater where an adequate supply of fresh air for combustion and ventilation can be obtained. See Air
Requirements on page 18.
9.Locate the water heater where the vent and intake air piping, when installed, will remain within the maximum equivalent lengths allowed. See Venting Requirements on page 24.
10.Do not locate the water heater where noise (such as the Combustion Blower) during normal operation will be objectionable in adjacent areas.
11.Do not locate the water heater where the subsequent installation of the vent (exhaust) or intake air terminations would be objectionable due to noise at the termination(s). This includes locations close to or across from windows and doors. See Venting Installation on page 22.
Fire or Explosion Hazard
Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
Avoid all ignition sources if you smell gas.
Do not expose water heater controls to excessive gas pressure.
Use only the gas shown on the water heater rating label.
Maintain required clearances to combustibles.
Keep ignition sources away from faucets after extended periods of
Read instruction manual before
installing, using or servicing
water heater.
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