Grant Aerona3 Series - Page 83

Appendix A - Parameters List Page 83
I 42 20
Type of operation of additional water pump
0=disable
1=depending on main water pump setting
2=depending on main water pump setting but always OFF when the
DHW mode is activated
3=always ON, apart from if any alarms are activated or if the heat
pump is in OFF mode
0 0 3 -
Frost protection
Level
Parameter
Function description
Display and input value
Remarks
Group Code Default Min. Max. Unit
S 43 00
Frost protection on room temperature
0=disable
1=enable
1 0 1 -
I 43 01 Start temperature of frost protection on room air temperature 14.0 0.0 5.0 0.5°C
I 43 02 Hysteresis of room air temperature of frost protection 1.0 0.5 5.0 0.5°C
S 43 10
Frost protection by outside temperature
0=disable
1=enable
1 0 1 -
I 43 11 Start temperature of frost protection on outdoor air temperature 4.0 0.0 10.0 0.5°C
I 43 12 Hysteresis of outdoor air temperature 3.0 0.5 5.0 0.5°C
I 43 14 Hysteresis of flow water temperature 3.0 0.5 5.0 0.5°C
S 43 20
Frost protection based on outgoing water temperature
0=disable
1=enable
1 0 1 -
I 43 21 Start temperature of frost protection on flow water temperature 4.0 0.0 10.0 0.5°C
I 43 22 Hysteresis of flow water temperature 3.0 0.5 5.0 0.5°C
S 43 30
DHW storage frost protection
0=disable
1=enable
1 0 1 -
Input/output
Level
Parameter
Function description
Display and input value
Remarks
Group Code Default Min. Max. Unit
I 51 11
Terminal 11-12: thermal store temperature probe
0=disable
1=enable
0 0 1 -
To be set to
the following
combinations
parameter 5111=0
→Parameter 4200=0
or 2
parameter 5111=1
→Parameter 4200=0
or1 or 2
I 51 19
Terminal 19-18 : DHW remote contact
0=disable (Remote controller only)
1=enable
1 0 1 -
I 51 2 0
Terminal 20-21 : ON/OFF remote contact (CH)
Alarm input
0=disable
1=ON/OFF remote contact
1 0 1 -
ON/OFF by
Remote controller
0=enable
1=ON/disable
OFF/enable
2=enable
I 51 28
Terminal 28-29 : Night mode*
0=disable
1=enable
Refer to Section 8.6.
0 0 1 -
Parameter 5128 and
Parameter 5130
are synchronised in
same value
I 51 30
Terminal 30-31 : Low tariff*
0=disable
1=enable
Refer to Section 8.7.
0 0 1 -
I 51 46
Terminal 46 : DHW Electric heater or Backup heater
0=DHW Electric heater
1=Backup heater
0 0 1 -
I 51 48
Terminal 48
0=disable
1=additional water pump
0 0 1 -
* External timer required