24
MANUAL CONTROL OF HERU
®
CX
I normala fall styrs driften av Tidstyrprogrammet.
Möjlighet finns att frångå Tidstyrprogrammet. Endera stoppa driften eller styra driften
manuellt till valfritt fläktsteg and/eller valfri börvärdestyp temp.regulation.
At least password level 1000 (see chapter 7.1).
– Go to the S
tart page
, choose
Manual operation
and press ENTER
√
.
Example:
STOPPING THE UNIT FOR SERVICE
It is possible to stop HERU
®
CX, similar to a service switch. This is done in the HMI.
This is done via
Manual mode
.
– Choose
OFF
and press ENTER
√
.
The unit will now stop.
Example:
If EHC is used, an after blowing
period will control the supply air
fan to prolonged operation before
HERU
®
CX stops and the dampers
closes.
The dampers close according to
set time after the fans have stop-
ped. The default time delay for
the dampers is about 10 seconds.
MANUAL START
To start the unit independently the Time switch programs start and stop times.
The following options can be shown:
Selections
manual operation
Temp. regulation
acc. to setpoint
Fan control/-regulation
acc. to setpoint
Auto
See Time switch program, chap. 5
See Time switch program, chap. 5
Off
Stopped unit, see chap. 5.
Stopped unit, see chap. 5.
Stage 1
Only 1 Setpoint
Stage 1
Stage 2
Only 1 Setpoint
Stage 2
Stage 3
Only 1 Setpoint
Stage 3
Econ.St1
Economy
Stage 1
Comf.St1
Comfort
Stage 1
Econ.St2
Economy
Stage 2
Comf.St2
Comfort
Stage 2
Econ.St3
Economy
Stage 3
Comf.St3
Comfort
Stage 3
–
Choose an option and press ENTER
√
.
The unit will now
not
follow the Time switch program, but will instead continue to
follow the preferences that have been set. The safety functions are still enabled, e.g.
freeze protection, EHC over-
heating protection, fire alarm, etc.
Example:
These kind of alarms will still
stop the operation.
–
To return to the Time switch
program, follow the above steps
but choose “Auto”.
7.8
7.9
ȳ
Ÿ
ź
я
Main menu
Main overwiew
Operating mode
Outside air temp
Supply air temp
Extract ait temp
3/7
Start page
Ź
Ź
off
14.2 °C
20.2 °C
22.2 °C
Manual operating
Auto
ȳ
Ÿ
ź
я
¥
Auto
Stage 1
Stage 2
Stage 3
2/5
Off
Ÿ
ź
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