SRP UAB SERIES, Инструкция по установке, эксплуатации и обслуживанию

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Series UAB Page 24 Feb 18/2015
VENTING/COMBUSTION AIR DUCTING
Vertical Venting

Minimum vent pipe size is 4 inch for an individual heater. Additional vent pipe sizes as required
to accommodate multiple heaters venting through a common roof vent are defined in the
appropriate gas installation code (Refer to common venting section below).

Use of an approved thimble to pass though combustible roof materials is required.

Use of an approved vent cap is required.

Check local codes for vertical vent size for Fan-assisted appliances.
Common Vertical Venting

Common vent sizing information is defined in the appropriate gas installation code (Refer to
ANSI Z223.1 and CAN/CGA B149.1 and B149.2 for sizes and installation information).

For vertical venting refer to ANSI Z223.1 and CAN/CGA B149.1 and B149.2 Fan Assisted
Category 1 Appliances.

Connection locations to the common vent should be offset to avoid pressure interferences between
heaters, refer to ANSI Z223.1 and CAN/CGA B149.1 and B149.2 Fan Assisted Category 1
Appliances.
Figure 20 : Common Vertical Venting
FOR VERTICAL VENTING REFER TO
ANSI Z223.1 AND CAN/CGA B149.1
AND B149.2 FOR FAN ASSISTED
APPLIANCES.
ROOF
FOR VERTICAL VENTING REFER TO
ANSI Z223.1 AND CAN/CGA B149.1
AND B149.2 FOR FAN ASSISTED
APPLIANCES.
INCREASE TO DETERMINED
VENT SIZE
FOR VERTICAL VENTING REFER TO
ANSI Z223.1 AND CAN/CGA B149.1
AND B149.2 FOR FAN ASSISTED
APPLIANCES.
ROOF
SINGLE HEATER MULTIPLE HEATERS