NuAire AIRMOVER DSA Series Installation And Maintenance Manual page 4

Installation and Maintenance AIRMOVER DSA AXIAL UNITS
Installation
Vertical Mounting
Free air space
Fan unit
Free air space
Vertical mounting of a Airmover or
a Airmover/silencer
combination where a silencer is
positioned above the Airmover.
Applies whether flow is upwards or
downwards.
Like horizontally mounted
combinations, silencers must
always be fitted with free air space
nearest the fan.
Horizontal Mounting
1
Unit
1. Unit only.
2. Unit with silencer fitted one side only.
Could be either side.
3. Unit with silencer fitted on both sides.
Could be two off SIL-S silencers,
two off SIL-L, or one of each.
4
Free air space
Free air space
2
Silencer DSS-S
Unit
or DSS-L
Flow
Vertical mounting of a fan or fan /silencer
combination where a silencer is NOT
positioned above the fan. Left-hand view shows
arrangement when flow is upwards as shown, right-
hand view arrangement when flow is downwards.
Free air space
Silencer DSS-S
or DSS-L
It is essential that silencers are always fitted with the
free air space near the unit, as performance may
otherwise be impaired.
Flow
Free air space
Steelwork
(by others)
Detail of resilient
mounting onto steelwork
Free air space
3
Unit Silencer DSS-S
or DSS-L