Nortec MH Series User Manual
Page 8
10-00
Page 4
2008-12-03
2.2 SWITCHING THE CONTROL UNIT ON AND OFF
NOTE: For putting the unit into operation and taking the unit out of operation please
follow the procedures described in the installation and operating instructions for the
Nortec MH.
Switching the MH control unit on
The control carries out a system test, during which all the
LEDs light up and the opposite display is shown. If a failure
occurs on the system test, a corresponding error message is
shown in the display.
After the system test the control is in normal operation mode.
The display shows the standard operating display. Note: The
contents of the standard operating display depends on the
type (MHTC Flow, MHTC Reflow), the actual operating
status and on the configuration of the Nortec MH and can
differ from the opposite display.
Switching the MH control unit off
The display goes out. On models MHB Reflow and MHTC Reflow the drain valve
opens and the water tub empties.
Note: The different hygiene functions (regular draining, flushing of the supply line, etc.)
remain active also in times without humidification / cooling demand, the control unit
should only be switched off for maintenance or, troubleshooting, or to disable
completely operation (as in seasonal shutdown).
2.3 REMOTE OPERATING AND FAULT INDICATION
If your control is equipped with a remote indication board (accessory) the following
operating status are shown remotely:
Activated remote
indication relay
When? Display
on
Unit
H1 “Error”
A fault is present, further
operation is not possible
Red LED lights. An error
message is shown in the
display
H2 “Service”
Maintenance or UV lamp
(option) replacement is
due. The unit remains
operational for a certain
time
Yellow LED lights. The
service warning message
is shown in the display
H3 “Humidification”
Unit is humidifying
Green LED lights
H4 “Unit on”
Unit ready for operation
Unit switch lights