Optional external tridicator gauge: An internally mounted tridicator is factory-installed. An
external tridicator can be fitted if required by local jurisdiction.
Flow direction: To supply manifold
Flow direction: From return manifold
Drain with cap
Figure 37
Multiple boiler piping - four staged boilers, single load
Supply to heating system.
Secondary loop sensor (to master boiler).
Closely-spaced tees are a maximum of four pipe diameters apart, with a minimum of
eight pipe diameters of straight piping upstream of the first tee and a minimum of four
pipe diameters of straight piping downstream of the second tee.
Return from heating system.
54
Section: Installation
Summary of Contents for SL Series
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Page 12: ...Figure 5 Top view SL 40 399 G3 Figure 6 Bottom view SL 40 399 G3 8 Section Specifications...
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Page 64: ...Figure 40 Electric wiring connections 60 Section Installation...
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Page 110: ...Internal wiring diagram Figure 46 Internal wiring diagram 106 Section Appendices...
Page 111: ...Sequence of operations Figure 47 Sequence of Operation 107 Sequence of operations...