Description Of The Parameters; Running The Back-Up In Heating Mode - DeDietrich MIT-M /E Installation, User And Service Manual

7 Settings
Tab.92 Parameters
Parameter Description
Status relay func. Status relay function
(EP018)
No Action
Alarm
Alarm Inverted
Compressor on
Compressor off
Reserved
Reserved
Service request
Heat pump in heating mode
Heat pump in domestic hot water mode
CH pump on
Locking or Blocking
7.5

Description of the parameters

Tab.93 Parameter for heating production
Access
Air Src Heat pump >
23.5
Parameters, counters, signals
> Parameters
74 MIT-M
7.5.1
Start-up conditions for the back-up
The back-ups are authorised to start up normally except in the case of
active back-up relief, limitation linked to bi-valency or hybrid mode
operation for example.
If the heat pump should also be limited, the back-ups are nevertheless
authorised to operate to guarantee heating comfort.
The back-ups can also operate where defrosting is necessary to
guarantee the safety of the plate heat exchanger, without taking into
account temperature values, bivalency and the BL1 and BL2 inputs.
Conditions that allow back-up relief:
If the BL function (AP001) or BL2 function (AP100) parameters are set to
Backup relieved, Gen.&Backup relieved or Photovoltaic HP Only and the
corresponding BL input is activated, the back-ups will be deactivated.
In heating mode, the back-up is managed by the following parameters:
Parameter
BL function
(AP001)
BL2 function
(AP100)

Running the back-up in heating mode

Description
BL input function selection
BL2 input function selection.
Factory setting
SCB-10
Locking or Blocking
Default value
Backup relieved
Gen.&Backup relieved
PV HP And backup
7756241 - v02 - 19062020