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Recommended Installation Heights
The zone where the unit should be installed is determined by the type of
gas to detect (see the table below).
Detected Gas
Carbon
CO
Monoxide
Nitrogen
NO
2
Dioxide
O
Oxygen
2
* May differ in certain applications. Since hot NO
lighter than air, our empirical data has shown that NO
effective when installed closer to the ceiling.
The installation heights recommended represent general
guidelines. Always confirm with local laws and regulations, as
these take precedence over manufacturer's
recommendations.
511398
5/07
Where to install the Transmitters
Relative
Density
(air = 1)
0.968
1.5 m (5 ft.) from floor
30 cm to 1 m (1 - 3 ft.) from
1.58 (cold) *
ceiling
1.43
1 - 1.5 m (3 - 5 ft) from floor
2
301W User Manual
Honeywell
Installation Instructions
Installation Height
from exhaust systems is
sensors are more
2
17