6
|
Application guidelines
Installer reference guide
33
ERGA04~08EAV3(A) + EHBH/X04+08EA/EJ6V+9W
Daikin Altherma 3 R W
4P629085-1 – 2020.08
▪
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
Configuration
Setting
Value
Unit temperature control:
▪
#: [2.9]
▪
Code: [C-07]
1 (
External room thermostat
):
Unit operation is decided by the
external thermostat.
Number of water temperature zones:
▪
#: [4.4]
▪
Code: [7-02]
0 (
Single zone
): Main
External room thermostat for the
main
zone:
▪
#: [2.A]
▪
Code: [C-05]
1 (
1 contact
): When the used
external room thermostat or heat pump
convector can only send a thermo ON/
OFF condition. No separation between
heating or cooling demand.
Benefits
▪
Cooling.
Heat pump convectors provide, besides heating capacity, also excellent
cooling capacity.
▪
Efficiency
. Underfloor heating has the best performance with the heat pump
system.
▪
Comfort.
The combination of the two heat emitter types provides:
-
The excellent heating comfort of the underfloor heating
-
The excellent cooling comfort of the heat pump convectors
6.2.2 Multiple rooms – One LWT zone
If only one leaving water temperature zone is needed because the design leaving
water temperature of all heat emitters is the same, you do NOT need a mixing
valve station (cost effective).
Example:
If the heat pump system is used to heat up one floor where all the rooms
have the same heat emitters.
Underfloor heating or radiators – Thermostatic valves
If you are heating up rooms with underfloor heating or radiators, a very common
way is to control the temperature of the main room by using a thermostat (this can
either be the user interface or an external room thermostat), while the other
rooms are controlled by so-called thermostatic valves, which open or close
depending on the room temperature.
