afriso CosiTherm BM Notice Technique page 58

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6
Operation
6.1
Overview of the LED signals
Display
Operation
A.
mains voltage
(LED green)
Operation 5 V
B.
(LED green)
Pump Heating
C.
(LED red)
Pump Cooling
D.
(LED blue)
Cooling
E.
(LED blue)
Operation
B
A
1
State
Explanation
Solid lit
When 230 V AC mains voltage is applied
Goes off In the case of power failure
If the fuse (1) trips
Solid lit
If 5 V supply is applied
Goes off In the case of power failure
If the fuse (1) trips
If the 5 V supply fails
Solid lit
If at least one room temperature sensor is
requesting heating energy
Goes off If no room temperature sensor is request-
ing heating energy
Solid lit
If the controller is set to "Cooling" and if at
least one room temperature sensor is
requesting cooling
Goes off If no room temperature sensor is request-
ing cooling
Solid lit
If the controller is set to "Cooling"
Goes off If the controller is set to "Heating"
C D E
EN
26
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