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I
NSTALLATION
MODE
N
.
O
DESCRIPTION
1
unit off
2
heat recovery
speed 1
3
heat recovery
speed 2
4
heat recovery
speed 3
5
recirculation
en-30
2.12.5 Checking operation
1. Open the indicated panels to check the operation of the
2. Go to function
3. Check the operation of different fans and dampers in each
n
n
(
)
FANS
SPEED
1
2
SUPPLY
EXTRACT
off
off
(no pressure
difference)
1
1
(pressure dif-
ference)
2
2
(pressure dif-
ference)
3
3
(pressure dif-
ference)
1
off
(no pressure
difference)
dampers and fans.
menu > Maintenance > Checking HR
test mode. Use the table below for this purpose.
Opmerking:
The extract fan 2 and the exhaust air damper 4
are not visible. Check this with reference to the
pressure difference over the extract fan.
In the final test mode (7), the fan runs but there is
no pressure difference because the air damper is
closed.
Opmerking:
The opening and closing of the dampers can take a
little while.
VALVES
FRESH
EXHAUST
3
4
AIR
AIR
closed
closed
(no pressure
difference)
open
open
(pressure dif-
ference)
closed
closed
(no pressure
difference)
H
EAT RECOVERY UNIT
unit.
-
RECIR
5
6
-
CULATION
BY
PASS
open
closed
closed
closed
open
closed
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