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Application guidelines
Installer reference guide
34
EPRA14~W1 + ETBH/9W
Daikin Altherma 3 H HT W
4P587501-1B – 2020.10
▪
The underfloor heating of the main room is connected as follows:
-
Warm water → Indoor unit
-
Cold water → Outdoor unit
▪
The room temperature of the main room is controlled by the dedicated Human
Comfort Interface (BRC1HHDA used as room thermostat).
▪
A thermostatic valve is installed before the underfloor heating in each of the
other rooms.
INFORMATION
Mind situations where the main room can be heated by another heating source.
Example: Fireplaces.
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
▪
Easy
. Same installation as for one room, but with thermostatic valves.
Underfloor heating or radiators – Multiple external room thermostats
Setup
M1
M2
C
B
a
b
a
A
A
Main leaving water temperature zone
B
Room 1
C
Room 2
a
External room thermostat
b
Bypass valve
▪
For more information about connecting the electrical wiring to the unit, see:
-
"8.2 Connections to the outdoor unit"
-
"8.3 Connections to the indoor unit"
▪
For each room, a shut-off valve (field supplied) is installed to avoid leaving water
supply when there is no heating or cooling demand.
