Daikin ETVH16SU23EA6V [42/296] Application guidelines

6 | Application guidelines

Installer reference guide

EPRA14~18DAV3+W1 + ETVH16SU18+23EA6V

Daikin Altherma 3 H HT F

4P644738-1 – 2021.02

▪ For each room, a shut-off valve (field supplied) is installed to avoid leaving water

supply when there is no heating or cooling demand.

▪ A bypass valve must be installed to make water recirculation possible when all

shut-off valves are closed. To guarantee reliable operation, provide a minimum

water flow as described in table "To check the water volume and flow rate" in

"8.1Preparing water piping"[483].

▪ The user interface integrated in the indoor unit decides the space operation

mode. Mind that the operation mode on each room thermostat must be set to

match the indoor unit.

▪ The room thermostats are connected to the shut-off valves, but do NOT have to

be connected to the indoor unit. The indoor unit will supply leaving water all the

time, with the possibility to program a leaving water schedule.

Configuration

Setting Value

Unit temperature control:

▪ #: [2.9]

▪ Code: [C-07]

0 (Leaving water): Unit operation is

decided based on the leaving water

temperature.

Number of water temperature zones:

▪ #: [4.4]

▪ Code: [7-02]

0 (Single zone): Main

Benefits

Compared with underfloor heating or radiators for one room:

▪ Comfort. You can set the desired room temperature, including schedules, for

each room via the room thermostats.

Heatpump convectors – Multiple rooms

Setup

B C

a a

A Main leaving water temperature zone

B Room 1

C Room 2

a Heat pump convectors (+ controllers)

▪ For more information about connecting the electrical wiring to the unit, see:

- "9.2Connections to the outdoor unit"[4105]

- "9.3Connections to the indoor unit"[4112]