Daikin Altherma 3 HT - Page 37

6 | Application guidelines
Installer reference guide
37
EPRA14~18D + ETVH/X16S18+23E
Daikin Altherma 3 H HT F
4P644737-1A – 2022.03
▪ Efficiency. Optimal energy efficiency because of the interlink function.
▪ Stylish.
Combination: Underfloor heating + Heatpump convectors
▪ Space heating is provided by:
- The underfloor heating
- The heatpump convectors
▪ Space cooling is provided by the heat pump convectors only. The underfloor
heating is shut off by the shut-off valve.
Setup
M1
B
a
A
A Main leaving water temperature zone
B One single room
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101]
- "9.3Connections to the indoor unit"[4109]
▪ The heatpump convectors are directly connected to the indoor unit.
▪ A shut-off valve (field supply) is installed before the underfloor heating to
prevent condensation on the floor during cooling operation.
▪ The desired room temperature is set via the controller of the heat pump
convectors. There are different controllers and setups possible for the heat pump
convectors. For more information, see:
- The installation manual of the heat pump convectors
- The installation manual of the heat pump convector options
- The addendum book for optional equipment
▪ The space heating/cooling demand signal is sent to one digital input on the
indoor unit (X2M/35 and X2M/30).
▪ The space operation mode is sent by one digital output (X2M/4 and X2M/3) on
the indoor unit to:
- The heatpump convectors
- The shut-off valve