Technical data

Table Of Contents
FAULTS
6 720 803 687 (2012/11)56
Fig. 61 Display on the external and internal hybrid control module
Indication of operating states by LED signals on the hybrid control
module:
10.2.2 CHECK TEMPERATURE SENSOR OF HYBRID MANAGER
6 720 646 970-46.3ITL
1 2 3 4 5
6
7
8
9
Position Symbol Explanation
1ON/OFF
(hybrid control module)
2 Communication with the
programming unit
3Fault
4 Demand to the air to water heat
pump
5 Boiler communication and boiler
demand
6 Display
7—Back button
8 Rotary selector
9 Service key
Table 29 Key to Fig. 61
Status LED1 LED2 LED3 LED4 LED5
Pump pre-run 
Preheating
(only air to water heat
pump)
Operation (heat source
and air to water heat
pump)
 
Only air to water heat
pump operation
Fault air to water heat
pump

Fault, communication
with the heat source
Boiler only mode 
Heat source fault
Fault, communication
with the programming
unit
 m
Table 30 Operating indicators on the hybrid control module
(
= LED illuminates,
= LED does not illuminate,
= LED
flashes)
T (°C) R ( ) T (°C) R ( ) T (°C) R ( )
-30 83190 20 5870 70 823.4
-20 45623 30 3787 80 591.3
-10 26005 40 2504 90 431.3
0 15346 50 1693 100 319.6
10 9353 60 1169
Table 31 Heating water temperature sensor
T (°C) R ( ) T (°C) R ( ) T (°C) R ( )
-20 39080 30 4364 80 836.9
-10 23850 40 3024 90 631.2
0 15000 50 2138 100 482.5
10 9699 60 1538 110 373.5
20 6431 70 1126 120 292.5
Table 32 Refrigerant temperature sensor