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Smoke test & measure static pressure – Canon PSC 2000 User Manual

Page 19

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2000 Fire Door-Fan Manual

updated 2002-05-28

Page 19 of 58

Smoke test & measure static pressure

The purpose of this test is to see whether there is a static pressure in the room prior to the
door fan test. The door fan is not running and smoke is puffed in front of an open hole in the
blower. If it moves slowly or not at all, no pressure exists. Minor pressures are cancelled out

by testing both directions so we are therefore looking for significant movement of 2 mph

(3kph). If the zone outside the enclosure is not completely connected with open doorways
then you must check across each wall this is not connected. Walls to outdoors can be ignored.


If there IS smoke movement, the magnitude of the pressure must be measured with the room

gauge or the handheld gauge.


See section called: “Smoke test & measure static pressure for more information.”


Check to see if there is any static

pressure by puffing smoke near a

known hole at the door. If the

smoke moves, the next step is to

measure the magnitude since the
smoke is the best guide to its

direction.

If the smoke moves, a

handheld gauge or room

gauge with tube under

doorway is used to

measure the static
pressure.

Analog handheld gauge

must be held firmly against

a vertical surface to ensure

zero shift is kept to a

minimum.