12
GOLD 1-3 SK-GB-708
Right to make modifications without prior notice
Closed Opened
7.6. Throttle damper
Before the throttle damper is adjusted, duct calibration
shall be carried out, see 8.6.
The damper shall be fullyopened, pushed so that no part
is in the the exhaust air inlet (see sketch).
Set the supply and exhaust air flows on the display
(according to 7.5 above).
After that, make an adjustment which distributes the
total supply and exhaust air flow so that each diffusor
obtains the correct flow.
There after it is time to adjust the pressure balance in the
unit with the help of the damper so that the purging flow
goes to the exhaust air side.
On the external electrical enclosure there are two red
pressure nipples for measuring the negative pressure on
the supply and exhaust air side. At the nipples there are
a
+
for the pressure on the supply air side and a
-
for the
pressure on the exhaust air side.
Connect the manometer or other pressure meter to the
connections for
+
and
-
and measure both pressures.
NOTE! With both nipples negative pressures are
measured.
If the negative pressure on the exhaust air side is at least
as high as on supply air, the adjustment is ready.
If not, remove the inspection door, adjust the damper
slightly, put back the inspection door and measure the
pressures. Repeat until the negative pressure on the
exhaust air side is at least as high as on supply air side (0–
20 Pa).
New duct calibration should be done when the damper
has been adjusted.
WARNING!
Inspection hatches located on the pressure side behind
the fan must not be opened when the fan is operating.
The hatch can open suddenly and cause personal
injury.
Min flow l/s
Max flow l/s
Size
7.5. Flows
Where the flows are programmed in l/s and the smallest
step is10 l/s.
Min and max flows:
GOLD 1
70
320
2
110
500
3
230
900
Low speed flow can also be set to 0, which stops the unit
at times for low speed on the switching clock.
Programmed flows is automatically kept in GOLD.
:
: :
:
HIGH SPEED
::
LOW SPEED
700 l/s
SA
400 l/s
700 l/s
EA
400 l/s
RET
PROG
