Endurance |
|
|
|
|
|
|
|
|
|
|
|
| Page 9 |
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Length |
|
|
|
|
|
| Capacity of Pipe |
|
|
|
|
|
| ||
of Pipe |
|
| 1/2" | 3/4" |
|
| 1" |
|
| ||||||
ft. |
| m | MBTU/h |
| kW | MBTU/h |
| kW | MBTU/h |
| kW | MBTU/h |
| kW |
|
10 |
| 3 | 132 |
| 38.7 | 278 |
| 81.5 | 520 |
| 152.4 | 1050 |
| 307.7 |
|
20 |
| 6.1 | 92 |
| 27 | 190 |
| 55.7 | 350 |
| 102.6 | 730 |
| 213.9 |
|
30 |
| 9.1 | 73 |
| 21.4 | 152 |
| 44.5 | 285 |
| 83.5 | 590 |
| 172.9 |
|
40 |
| 12.2 | 63 |
| 18.5 | 130 |
| 38.1 | 245 |
| 71.8 | 500 |
| 146.5 |
|
50 |
| 15.2 |
|
|
| 115 |
| 33.7 | 215 |
| 63 | 440 |
| 128.9 |
|
75 |
| 22.9 |
|
|
| 93 |
| 27.2 | 175 |
| 51.3 | 360 |
| 105.5 |
|
100 |
| 30.5 |
|
|
| 79 |
| 23.1 | 150 |
| 44 | 305 |
| 89.4 |
|
150 |
| 45.7 |
|
|
| 64 |
| 18.8 | 120 |
| 35.2 | 250 |
| 73.3 |
|
|
|
|
|
|
| Additional length to be added for each tee or bend |
|
|
|
| |||||
|
|
| ft |
| m | ft |
| m | ft |
| m | ft |
| m |
|
|
|
| 1.3 |
| 0.4 | 1.7 |
| 0.5 | 2.2 |
| 0.7 | 2.7 |
| 0.8 |
|
Table 3.
1.Run gas supply line in accordance with all applicable codes.
2.Locate and install manual shutoff valves in accordance with state and local requirements.
3.Install drip leg, ground joint union and drip cap to trap sediment and for test gauge access.
4.Support all piping with proper hangers.
5.All threaded joints should be coated with piping compound resistant to the action of liquefied petroleum gas.
6.The boiler and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of ½ psig (3.5kPa).
7.The boiler must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than ½ psig (3.5kPa)
8.The boiler and its gas connection must be leak tested before placing the boiler in operation.
9.Purge all air from gas lines.
be no higher than 120°F mixed delivery temperature or as local codes dictate. LAARS RECOMMENDS
2.Connect gate or shutoff valve 13 to tempering (mixing) valve 12 “MIX” port, and cold water inlet.
3.Install supplied flow restrictor 14 ahead of tempering (mixing) valve tee.
4.Connect pressure relief valve 1 (if required by codes), maximum 150 PSI as close to the unit as possible. No other valves or restrictions may be installed between the Endurance and the relief valve.
DO NOT USE A TEMPERATURE/PRESSURE RELIEF VALVE AS THIS IS NOT A STORAGE HOT WATER HEATER.
Note: Installations with water containing 10 or more grains of hardness, must be installed with appropriate water treatment.
3B. Domestic Water Piping (EBP only)
1.Connect tempering (mixing) valve 12 “Hot” port to hot water outlet from unit. This valve should
Figure 12. Domestic Water Piping. | Figure 13. Domestic Water Piping With Storage Tank. |
