Multi
MAXX
HG
Commissioning
FläktGroup DC-2011-0141-GB 2018-05/R5 • Subject to modifications
43
7.1.5.4 Error messages on the remote control board
Fig. 7-8:
Error messages
If there are errors on some units, the number of the unit to which the errors occur is
displayed on the 7-digit display. At the same time, the LEDs that indicate the error are
on (see Fig. 7-8 and Tab. 7-9).
If an error occurs on multiple units, the number of the displayed unit will be switched
within 2s (No. 0-9 will be displayed in order of order for unit numbered 1 and 0 for unit
with address 1). At the same time, the corresponding LEDs of the displayed unit are
displayed on the LEDs.
If there is no error on the unit, "-" (dash) is displayed.
Error contacts (NC/NO contact 16A/250V/AC1)
Remote control board OSHG 0.RDDO
LED
Designation
Error
HL1
HOR S3
Burner error
HL2
TK
Unit fan thermal contact (TK) error
HL3
PT HX
Exchanger temperature sensor error (PT1000)
HL4
FILTR
Clogged filter
HL5
HOR SET
Error of incorrectly set burner
HL6
PT VK
Fan chamber temperature sensor error (PT1000)
HL7
COMM
The unit does not communicate with the OSHG 0.RDDO remote
control board
Tab. 7-8:
Error messages
Error
contacts
Contact status
Error
ERR1
Permanently open
Burner error S3
Periodically switches
Error of incorrectly set burner
ERR2
Permanently open
Unit fan thermal contact (TK)
Periodically switches
Units are not communicating
ERR3
Permanently open
PT HX
Periodically switches
PT VK
ERR4
Permanently open
Clogged filter
Tab. 7-9:
Error contacts ERR1 to ERR4