Dantherm DCU22-2000DH, Service Manual

Page: 9 / 53

9 of 53
Indicators
1
、
On the front five LED’s will give an indication of the present status of the climate unit:
At the left a green LED, marked “Supply” is lit as soon as the controller is powered on. At this time an
LED jingle is performed where all LED’s will be lit one by one.
2
、
The three LED’s following green are yellow. The “Compressor” LED will be lit when the active cool-
ing is operating. The “Heater” LED will be lit once the heater is operated (it’s an option) and the “Link”
LED when and ten minutes after valid communication via the RS485 connection have been in pro-
gress.
3
、
The red LED “Alarm status” will only be lit in case of a detected fault. Several indications are
shown.
Set points
Set points for heating and cooling are done by on board dials. Alternatively this can be done through
the telemetry option.
The range for the heater is 0
℃
to 15
℃
. The active cooler has a range of 20
℃
to 40
℃
.
Notice: our recommendation is 35
℃
℃ ℃
℃
,we did the test from 25
℃
℃ ℃
℃
to 40
℃
℃ ℃
℃
; but if you want
to set lower than 25
℃ ℃ ℃ ℃
,maybe there has some risks because of ambient tempera-
ture ,heat load, etc..