PIPING
8.Install an Air Elimination Device on the system supply.
9.Install a drain valve at the lowest point of the system. Note: The Munchkin can not be drained completely of water without purging the unit with an air pressure 15 PSI.
10.The Safety Relief Valve is installed at the factory located on the right hand side of Munchkin. Pipe the discharge of safety relief valve to prevent injury in the event of pressure relief. Pipe the discharge to a drain. Provide piping that is the same size as the safety relief valve outlet. Never block the outlet of safety relief valve.
11.In compliance with ASME
See the piping illustrations included in this section, Figs.
*Please note that these illustrations are meant to show system piping concept only, the installer is responsible for all equipment and detailing required by local codes.
B. CIRCULATOR SIZING
The Munchkin Heat Exchanger does have pressure drop which must be considered in your system design. Refer to the graph below for pressure drop through the Munchkin Heat Exchanger.
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| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 |
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| Flow in Gallons per Minute |
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| MUNCHKIN T50M |
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| MUNCHKIN T80M/80M |
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| MUNCHKIN 140M |
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| MUNCHKIN 199M |
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Figure |
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| BOILER |
| TACO P/N | GRUNDFOS P/N |
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| T50M/T80M/80M | 007 * |
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| 140M |
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| 0010 * |
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| 199M |
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| 0011 * |
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* THE RECOMMENDED CIRCULATORS ARE BASED ON 1 GPM PER 10,000 BTU/HR W/20
23