Daikin Altherma 3 H MT W - Single Room

6 | Application guidelines
Installer reference guide
34
EPRA08~12EAV3+W1 + ETBH/X12EF6V+9W
Daikin Altherma 3 H MT W
4P634885-1 – 2021.03
6.2.1 Single room
Underfloor heating or radiators – Wired room thermostat
Setup
A
B
a
A Main leaving water temperature zone
B One single room
a Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat)
▪ For more information about connecting the electrical wiring to the unit, see:
- "9.2Connections to the outdoor unit"[4100]
- "9.3Connections to the indoor unit"[4108]
▪ The underfloor heating or radiators are connected as follows:
- Warm water → Indoor unit
- Cold water → Outdoor unit
▪ The room temperature is controlled by the dedicated Human Comfort Interface
(BRC1HHDA used as room thermostat).
Configuration
Setting Value
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
2 (Room thermostat): Unit operation
is decided based on the ambient
temperature of the dedicated Human
Comfort Interface.
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
0 (Single zone): Main
Benefits
▪ Highest comfort and efficiency. The smart room thermostat functionality can
decrease or increase the desired leaving water temperature based on the actual
room temperature (modulation). This results in:
- Stable room temperature matching the desired temperature (higher comfort)
- Less ON/OFF cycles (more quiet, higher comfort and higher efficiency)
- Lowest possible leaving water temperature (higher efficiency)