Grant Aerona3 Series User Manual

Section 8: OperationPage 44
8.5 ON/OFF DHW Production Remote Contact
The heat pump operation for DHW production is controlled from a remote
contact, e.g. a cylinder thermostat or motorised valve switch.
The remote ON/OFF DHW contact is enabled by parameter 5119. Refer
to Table 8-20. The DHW mode cannot be controlled automatically by the
remote controller.
When DHW is turned ON by the remote contact and the heat pump is ON it
will start operation in DHW (comfort) mode.
DHW ON/OFF remote contact
Contact OPEN = DHW OFF
Contact CLOSE = DHW ON
(Comfort)
18
19
Terminal PCB
COM
DHW Remote
Contact
Figure 8-19: ON/OFF DHW production remote contact
Table 8-20: DHW ON/OFF contact parameters
Level
Parameter
Function description
Display and input value
Remarks
Group Code Default Min. Max. Unit
I 31 01
DHW production priority setting
0=DHW is unavailable
1= DHW is available, and priority DHW over space heating
2= DHW is available, and priority space Heating over DHW
1 0 2 -
I 51 19
Terminal 19-18 : DHW remote contact
0=disable (Remote controller only)
1=enable
1 0 1 -
For details of how to access the parameter settings, refer to Section 9.3.
In order to use DHW function, it is necessary to
set parameter 3101=1 and parameter 5119=1.
Turn ON both remote controller using ON/OFF
button, and DHW ON/OFF remote contact to
start heat pump for DHW.
NOTE
NOTE

Grant Aerona3 Series Specifications

General

Brand	Grant
Model	Aerona3 Series
Category	Heat Pump
Language	English