Daikin Altherma 3 WS EWSAH06UD 9W Series Installer's Reference Manual page 130

10 | LAN adapter
Installer reference guide
130
NOTICE
Use appropriate tooling to set the DIP switches to another position. Beware of
electrostatic discharge.
The LAN adapter allows for the connection of the heat pump system to a solar
inverter/energy management system, and enables it to run in various Smart Grid
operation modes. In this way, all system components work together to limit the
injection of (self-generated) power into the grid, instead converting this power into
thermal energy by making use of the thermal storage capacity of the heat pump.
This is called "energy buffering".
The system can buffer energy in the following ways:
▪ Heat up the domestic hot water tank
▪ Heat up the room
▪ Cool down the room
The Smart Grid application is controlled by the solar inverter/energy management
system, that monitors the grid, and sends commands to the LAN adapter. The
adapter is connected to the solar inverter/energy management system (digital
outputs) by way of connector X1A (digital inputs).
Solar inverter/energy management
system
(digital outputs)
Digital output 1
Digital output 2
The solar inverter/energy management system controls the state of the digital
inputs of the LAN adapter. Depending on the state of the inputs (open or closed),
the heat pump system can run in the following Smart Grid operation modes:
Smart Grid operation mode
Normal operation/Free running
NO Smart Grid application
Recommended ON
Energy buffering in the domestic hot
water tank and/or the room, WITH
power limitation.
Forced OFF
Deactivation of unit and electrical
heater operation in case of high energy
tariffs.
Forced ON
Energy buffering in the domestic hot
water tank and/or the room, WITHOUT
power limitation.
X1A
(digital inputs)
SG0
(X1A/1+2)
SG1
(X1A/3+4)
SG0
(X1A/1+2) (X1A/3+4)
Open
Closed
Open Closed
Closed Closed
Daikin Altherma 3 WS
4P675765-1 – 2022.04
SG1
Open
Open
EWSAH/X06UD