Figure 34
Two pump, two load - parallel piping
Compared with the Primary-Secondary approach, the above design saves one pump. Use
check valves or thermal traps to isolate both the supply and return piping for each load. This
avoids thermal siphoning and reverse flow. In order to ensure appropriate flow of water through
the boiler in the case of high pressure drops or heating of a single zone, it may be necessary to
install a pressure-activated bypass device on any circuit where the flow rate could drop below
the minimum requirements.
51
3.11.2 System piping
Содержание SL Series
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Страница 12: ...Figure 5 Top view SL 40 399 G3 Figure 6 Bottom view SL 40 399 G3 8 Section Specifications...
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Страница 64: ...Figure 40 Electric wiring connections 60 Section Installation...
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Страница 109: ...105 Appendices Wiring diagrams V 10 Controller electrical diagram Figure 45 Controller electrical diagram...
Страница 110: ...Internal wiring diagram Figure 46 Internal wiring diagram 106 Section Appendices...
Страница 111: ...Sequence of operations Figure 47 Sequence of Operation 107 Sequence of operations...
Страница 113: ...Item Description Part ID Kit Quantity 200 Fan or 240 113 P 311 1 109 Boiler part diagrams SL 26 260 G3...