Wolf 820071 User Manual

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Page 4

INSTALL THE DAMPER

OUTSIDE AIR

TO CENTRAL SYSTEM

RETURN AIR OR INTERIOR

WALL REGISTER

DAMPER FLAP (Install in

vertical position shown.)

AIR FLOW AIR FLOW

SET SCREW

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cal position when closed and power is off. The set screw can be

used to adjust the damper opening - thereby balancing the inside

and outside air pressure when the range hood exhausts at high

speed.

PRESSURE SWITCH

OPERATION

The pressure switch is designed to operate when the static

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speeds if the pressure is below this limit.

MULTIPLE DAMPERS

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If more than one damper is required, use one pressure switch

and transformer.

Consult local building codes for make-up air requirements.

INSTALLATION OF

PRESSURE SWITCH AND

PROBE

For the probe & pressure switch to work effectively, the roof or

wall cap must have a spring loaded damper. Consult your HVAC

specialist for wall & roof caps applicable for your installation.

LOCATION OF PROBE AND

PRESSURE SWITCH

The probe must be mounted between the range hood damper

and the wall cap, roof cap, in-line blower or external blower.

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make sure the hood damper operation is not affected.

The pressure switch should be mounted so it is accessible for

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away from the probe. If longer tubing is required then what is

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the illustrations below for possible installation scenarios.

HOODS WITH INTERNAL

BLOWERS

For hoods with internal blowers an in-line damper (sold separately)

needs to be installed above the probe (see illustrations on page

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Wolf 820071 Range Hood Make-Up Air Damper

User Manual - Page 4