GB.SILVERSK.170901
We reserve the right to alter specifications.
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3.3 To Adjust the Pressure Bal-
ance
Applicable to air handling units with rotary heat exchanger
only.
OPEN
(Remove commissioning
plates)
CLOSE
(Insert one or more
commissioning plates)
CLOSE
OPEN
SILVER C RX
Air intake viewed from the side
Sizes 04 – 12, 1 – 2 plates
Commissioning plates
Sizes 14 – 120, 1 – 5 plates
3.3.1 General
There should be a certain degree of negative pressure in
the extract air section so that the direction of air leakage
through the heat exchanger and the function of the purg-
ing sector will be correct. This ensures that extract air will
not be transferred to the supply air.
The pressure balance in the unit should be adjusted when
the ventilation system has been fully installed and the
airflows discharged from all the air diffusers and registers
have been adjusted, and when the supply air and extract
airflows are as they should be while the air handling unit is
operating normally.
Air intake viewed from above
Sizes 14 – 30, 2 plates
Secure the commis-
sioning plates to the
ceiling with self-
tapping screws from
inside the AHU.
Adjust the pressure
balance by blanking
off the holes in the
commissioning plate
using the plastic plugs
supplied with it (reach
up and insert plastic
plug through the
rectangular hole in the
commissioning plate).
SILVER C RX Top
Left-hand versione
Sizes 04-12, 1 plate
EXTRACT AIR
EXTRACT
AIR
Right-hand version
Sizes 04-08, 1 plate
Adjustment
plate
Adjustment
plate
Fixing screw(s)
Fixing screw(s)
Two commissioning plates are supplied together with the SILVER C RX Top.
Which commissioning plate is to be mounted is determined by whether the air handling unit is a left-hand or right-hand version unit.
Install the correct commissioning plate at the appropriate place inside the unit; scrap the other plate. See illustration above.
Remove the mounting screw(s) and place the commissioning plate in the grooves provided for accommodating it. Refit the mounting
screw(s) and tighten it/them. See illustration above.
Adjust the pressure balance by blanking off the holes in the commissioning plate using the plastic plugs supplied with it.
Size 11/12, 1 plate
EXTRACT
AIR
Commissioning plate
Hook the commissioning plate in the rear edge of the unit to secure it
in position. Unfold the commissioning plate at its front edge and lock
the commissioning plate in position with the fixing screw.
Fixing screw
For the sake of clar-
ity, the image shows
the air handling unit
without end panel. All
work must however
be carried out from
the inspection side.
Inspec-
tion side