Swegon GOLD RX - Ensure Correct Direction of Air Leakage

GB.GOLDSKE.160901
14 www.swegon.com
We reserve the right to alter specifications without notice.
3.3.2. Ensure correct
direction of air leakage
The commissioning plates fitted in the extract air inlet are used
for adjusting the pressure balance in the unit. The commission-
ing plates are supplied separately and should be fitted in the unit
by the fitter when he connects the extract air ducting to the air
handling unit. See the illustrations on the following pages.
Connect a pressure gauge to the pressure measurement tappings
of the air handling unit. The unit has four pressure measurement
tappings. The two tappings closest to the extract air duct should
be used. The blue pressure measurement tapping is used for
measuring the negative pressure in the extract air section and the
white pressure measurement tapping is used for measuring the
negative pressure in the supply air section.
On the size 04-08 units, the pressure measurement tappings are
in the electrical equipment cubicle/electrical distribution box and
on the size 11-120 units they are inside in the centre section of
the unit. When you combine the GOLD RX Top 04-12 with the
COOL DX Top, note that the pressure measurement tappings
are located inside the centre section of the air handling unit. See
illustration to the right.
Note that both pressure measurement tappings are used for
measuring negative pressure.
MEASURED VALUES
The negative pressure in the extract air section should be higher
or the same as the negative pressure in the supply air section.
If the negative pressure in the extract air section is the same or
up to 20 Pa greater than the negative pressure in the supply air
section, then you’ve finished this adjustment.
Deviations
If the negative pressure in the extract air section is less than that
in the supply air section, the damper setting must be adjusted as
follows:
1. Stop the air handling unit, open the inspection door to access
the extract air filter.
GOLD RX Top/GOLD RX with air intake from above: Blank off
an appropriate number of holes in the commissioning plate
using the plastic plugs supplied.
GOLD RX with air intake from the side: Slightly push the
commissioning plates forward (close them) in the extract air
intake.
For full face connection (duct accessory in insulated casing):
If the commissioning plate(s) is/are completely closed and
the sub-atmospheric pressure in the extract air section is still
less than in the supply air section, blank off an appropriate
number of holes in the commissioning plate using the plastic
plugs supplied.
3. Close the inspection door and restart the unit.
4. Measure the pressures.
Repeat this procedure until the negative pressure in the
extract air section is just as high or up to 20 Pa higher
than the negative pressure in the supply air section (0–20
Pa).
5. If the negative pressure in the extract air section is higher
than 20 Pa compared with the supply air section, although
the commissioning plates are completely open, the leakage
and purging air flow will be more than necessary, and this will
cause the extract air fan to consume more power.
Pressure measurement tappings,
direction of air leakage
(Right-hand air handlling unit)
- (blue)
+ (white)
GOLD 04-08
GOLD 11-80
– (blue)
+ (white)
EXTRACT AIR
EXTRACT
AIR
GOLD 100/120
– (blue)
+ (white)
EXTRACT
AIR