5
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Application guidelines
Installer reference guide
32
EPRA14~W1 + ETVH/9W(G)
Daikin Altherma 3 H HT F
4P587502-1 – 2019.07
▪
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"
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The heat pump convectors are directly connected to the indoor unit.
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A shut-off valve (field supply) is installed before the underfloor heating to
prevent condensation on the floor during cooling operation.
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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
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
5.2.2 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).
