
Where an exhaust passes through a sidewall too close to a soffit, the venting must
extend past the soffit by transitioning to vertical as shown below.
Figure 23
Sidewall vent termination transition to vertical to clear soffit
This illustrates the scenario where indoor air is used for combustion. Where combustion air is
drawn from outdoors, combustion venting should also transition to vertical and terminations
should observe the limitations shown for rooftop terminations.
3.7.7 Indoor air combustion air intake
An “Indoor Combustion Air installation” can be described as air for combustion that is taken
from the air surrounding the boiler.
Warning
When using indoor air options, supply adequate combustion air to the boiler room
according to the requirements of all applicable codes.
40
Section: Installation
Содержание CX Series
Страница 6: ...Boiler part diagrams CX 150 CX 199 118 Installation Commissioning Report 122 6 Section Contents...
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Страница 13: ...Figure 2 Top and bottom view CX 150 CX 199 dimensions Figure 3 Front and side view CX 199 13 CX 199 dimensions...
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Страница 114: ...Appendices Wiring diagrams Figure 48 Controller electrical diagram 114 Section Troubleshooting...
Страница 115: ...Figure 49 Internal wiring diagram 115 Wiring diagrams...
Страница 116: ...Figure 50 Sequence of Operation 116 Section Troubleshooting...
Страница 117: ...8 4 Exploded views of the CX 150 CX 199 appliance 117 8 4 Exploded views of the CX 150 CX 199 appliance...
Страница 119: ...119 Boiler part diagrams CX 150 CX 199...