2. Configure the heat pump parameters
Tab.37
Access
Parameter
Description
Adjustment re
quired
23.5
Air Src Heat
pump >
Parameters,
counters, signals >
Adv. Parameters
BL function
(AP001)
BL input function selection
Heating Cooling
BL1 contact config.
(AP098)
BL1 input contact configuration
Closed: function active when BL contact is closed
Open: function active when BL contact is open
Closed
or
Open
Tab.38
Access
Parameter
Description
Adjustment re
quired
21.7
CIRCA0>
Parameters,
counters, signals >
Parameters
OTH LogicLev
contact (CP640)
Opentherm Logic level contact of the zone
Closed: heating demand when contact is closed
Open: heating demand when contact is open
Closed
or
Open
RevContactOTH
cool (CP690)
Reversed OpenTherm contact in cooling mode for heat
demand per zone
No: follows the heating logic
Yes: follows the reverse of the heating logic
Yes
or
No
Tab.39 Configuration A - by default
Value of the OTH
LogicLev contact
(CP640) parameter
Value of the BL1
contact config.
(AP098) parameter
The BL1 multifunc
tion input is
Operating mode for
the heat pump
If the OT contact is
open
If the OT contact is
closed
Closed (default val
ue)
Closed (default val
ue)
Open
Cooling
No cooling demand Cooling demand
Closed (default val
ue)
Closed (default val
ue)
Closed
Heating
No heating demand Heating demand
Tab.40 Configuration B
Value of the OTH
LogicLev contact
(CP640) parameter
Value of the BL1
contact config.
(AP098) parameter
The BL1 multifunc
tion input is
Operating mode for
the heat pump
If the OT contact is
open
If the OT contact is
closed
Closed
Open
Open
Heating
No heating demand Heating demand
Closed
Open
Closed
Cooling
No cooling demand Cooling demand
Tab.41 Configuration C
Value of the OTH
LogicLev contact
(CP640) parameter
Value of the BL1
contact config.
(AP098) parameter
The BL1 multifunc
tion input is
Operating mode for
the heat pump
If the OT contact is
open
If the OT contact is
closed
Open
Closed
Open
Cooling
Cooling demand
No cooling demand
Open
Closed
Closed
Heating
Heating demand
No heating demand
Tab.42 Configuration D
Value of the OTH
LogicLev contact
(CP640) parameter
Value of the BL1
contact config.
(AP098) parameter
The BL1 multifunc
tion input is
Operating mode for
the heat pump
If the OT contact is
open
If the OT contact is
closed
Open
Open
Open
Heating
Heating demand
No heating demand
Open
Open
Closed
Cooling
Cooling demand
No cooling demand
On
6 Installation
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7762758 - v05 - 19082020