OSTBERG HERU 400-2400 S, User Manual

Page: 36 / 120

36 / 120
Climatix HERU® 400-2400 2018-02-13
Getting started, a few simple steps
Stopping the unit for service
It is possible to stop HERU® CX, similar to stopping with a service switch. This is done in
the HMI.
This is done via Manual mode.
Select Off and press ENTER-
√.
The unit will now stop. If EHC is used, an afterblow period will control the supply air
fan to prolonged operation before HERU® CX stops and the damper closes.
The damper closes according to set time after the fans have stopped. The default time
delay for the damper is about 10 seconds.
і

Auto
Stage 1
Stage 2
Stage 3
2/5
Off
Manually control HERU® CX
To start the unit independent of the time switch program start and stop times.
The following options can be shown:
Selections under
manual
operation
Temperature regulation
according to setpoint Fan control/-regulation
according to setpoint
Auto See time switch program, chap.
5.7 See time switch program, chap.
5.7
Off Stopped unit, see chap. 5.6.1 Stopped unit, see chap. 5.6.1
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
Select 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 active, e.g.
frost protection, EHC overheating protection, fire alarm, etc. This type of alarm will still
stop operation.
Example HMI:
Stop unit
Manual start
Example HMI:
Selection of manual
controls