PowerKon LT
PowerKon LT
Assembly, installation and operating instructions
33
7.3
Connection of thermostatic head control (*N1)
Circuit description (*N1)
Units with thermostatic head control are fully wired and supplied ex-works with all electrical components and a connec-
tion cable with a standard European plug.
The speed of the EC fans used is controlled by “intelligent” control via a 0-10 V DC signal.
The temperature is set using a conventional heater thermostat.
Optionally, 3 level fan stages can be selected using a rocker switch.
Fig. 8: Control curves
*IV: DIP 1 = 0, DIP 2 = 1 (max. 8 V at stage 3)
DIP1
DIP2
Factory setting
DIP switch function
0
0
Test mode
1
0
Switching-on point 5°C (default =
7°C)
0
1
Max. 8 V at stage 3
1
1
X
Normal mode
Tab. 8: DIP switch settings
Status
Flash code
Cause
Priority
Behaviour
Standby
Duration
Unit switched on
5.
Control active
Flashing 1 sec.
Standard mode + EC motor
active
4.
EC motor fault
Fast flashing 1x
EC motor fault
3.
EC motor off
Fault sensor 1
Fast flashing 2x
TS1 not connected
2.
EC motor off
Fault sensor 2
Fast flashing 3x
TS2 not connected
1.
EC motor off
Tab. 9: LED status messages
