Vent screen retainer
Exhaust
Vent screen
Inlet
Flashing
Figure 15
Rooftop vent terminal vent screen and retainer
The intake air pipe is not typically drained, so it must be terminated with a down-
turned elbow as shown.
The intake pipe does not need to penetrate the roof at the same elevation as the
exhaust (as shown); lower down on the roof is acceptable.
Best Practice
: To reduce the possibility of expansion noise, allow a ¼"
gap around the exhaust and air intake piping.
26
Section: Installation
Содержание EX Series
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Страница 121: ...Appendices Wiring diagrams Figure 73 Controller electrical diagram 119 Appendices...
Страница 122: ...Figure 74 Internal wiring diagram EX 400 and EX 500 models 120 Section Appendices...
Страница 123: ...Figure 75 Internal wiring diagram EX 700 and EX 850 models 121 Wiring diagrams...
Страница 124: ...Figure 76 Sequence of Operation 122 Section Appendices...
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Страница 132: ...130 Boiler parts diagram EX 700 and EX 850...