Minimum attic intake area required, Dimensions fig. 4 – Qmark ASRV14 - Attic Ventilators User Manual

Page 4

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MINIMUM ATTIC INTAKE AREA REQUIRED

Sufficient intake area must be provided in the attic to assure that the fan will not be overloaded and that
it will deliver its rated CFM. This can be accomplished with some type of attic venting such as gable
louvers or under-eave vents. The table below shows the minimum intake area needed for each fan
installed.

MINIMUM ATTIC INTAKE AREA REQUIRED

(All Areas Are In Square Feet)

UNRESTRICTED*

WOOD LOUVER*

METAL LOUVER*

OPENING REQD.

OPENING REQD.

OPENING REQD.

3.0

4.0

3.4

*If openings are covered with 1/2” hardware cloth or large mesh expanded metal increase area by 20%.
Double area if fly screen is used.

SPECIFICATIONS

FAN

MOTOR @ 120VAC 60 HZ

SIZERPM

HP

AMPS

WATTS

14”

1550

1/35

2.2

200

* HVI Certified at 0.03” Static Pressure

DIMENSIONS

FIG. 4

6

1

2

2”

14

1

2

” DIA.

26”DIA.

23” SQUARE

3” HIGH VENTURI

4

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