PIPE SIZING FOR GAS CONNECTIONS
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MAXIMUMEQUIVALENTPIPELENGTH
3
Natural gas 1000 BTU/Ft .60 Specific Gravity @ 0.5 in. W.C. Pressure Drop
Propane Gas 2500 BTU/Ft 1.53 Specific Gravity @ 0.6 in. W.C. Pressure Drop
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| 1/2” |
| 1” | 2” |
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| N | P | N | P | N | P | N | P | N | P | N | P | ||||
514 | - |
| 10 | 15 |
| 35 | 65 | 150 | 130 | 360 | 500 | - | - |
| - |
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624 | - |
| - | 10 |
| 25 | 45 | 100 | 95 | 250 | 340 | - | - |
| - |
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724 | - |
| - | - |
| 20 | 35 | 80 | 75 | 180 | 260 | 600 | - |
| - |
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824 | - |
| - | - |
| 15 | 25 | 60 | 55 | 130 | 185 | 480 | 500 |
| - |
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PLUMBING FOR WATER CONNECTIONS LOCATION
The heater requires water flow and positive pressure to fire and operate properly. It must therefore be installed downstream of the discharge side of the filter pump. A typical installation is plumbed as follows:
1.The inlet side of the filter is plumbed directly to the discharge side of the filter pump;
2.The outlet side of the filter is then plumbed to the inlet of the heater; and
3.The outlet of the heater is plumbed to the return line to the pool or spa. The pump, filter and heater are thus plumbed in series.
Heatermustbelocatedsothatanywaterleakswillnot damage the structure of adjacent area. High temperature plastic pipe (CPVC) may be connected directly into the heater if local codes permit and if controls operate the pump for at least fifteen minutes after the heater is turned off.
CAUTION: NEVER install PVC directly into heater. Four feet of copper or high temperature pipe and two elbows are required between the heater and the PVC connections
Fig.#8129.0
When local codes permit the use of less than four feet high temperature piping or two elbows, provisions should be made to always shut the heater off a minimum of 15 minutes prior to pump shut down in order to carry away residual heat and prevent damage to the low temperature piping. A fireman switch included in the time clock may be used for this purpose with instruction not to override this sequence manually. See wiring diagram section for electrical hookup location of the fireman switch in the electrical circuit.
NOTE: 1. When 2” piping is used into the heater, this piping must be anchored (copper) or screwed into the flange (metal) if operating pressures above 30 PSI are encountered.
2.Any restrictions between heater outlet and pool will void the warranty.
FLOW RATES
MODEL | PIPE SIZE | MIN. GPM | MAX. GPM |
514 | 2” | 60 | 120 |
624 | 2” | 60 | 120 |
724 | 2” | 60 | 120 |
824 | 2” | 60 | 120 |
COMPANIONFLANGECONNECTIONS
DO NOT use petroleum base assembly fluids (such as Petroleum Jelly or lubricating oil). If assembly tube is required use a silicone base such as Armoral etc.
The inlet/outlet header flange accepts a 2” copper tube as a slip connection directly into the header. The flange is also thread for a 2” copper male threaded adapter.
Fig. # 8221.0
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