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Application guidelines
Heat pump convectors – Multiple rooms
Installer reference guide
42
▪
For more information about connecting the electrical wiring to the unit, see:
-
"9.2 Connections to the outdoor
-
"9.3 Connections to the indoor
▪
For each room, a shut-off valve (field supplied) is installed to avoid leaving water
supply when there is no heating or cooling demand.
▪
A bypass valve must be installed to make water recirculation possible when all
shut-off valves are closed. To guarantee reliable operation, provide a minimum
water flow as described in table "To check the water volume and flow rate" in
"8.5 Preparing water
▪
The user interface integrated in the indoor unit decides the space operation
mode. Mind that the operation mode on each room thermostat must be set to
match the indoor unit.
▪
The room thermostats are connected to the shut-off valves. They are also
connected to the indoor unit (X2M/35 and X2M/30) -via a relay (field supplied)-
to give feedback when operation is needed. The indoor unit will supply leaving
water as soon as there is a request from one of the rooms.
Configuration
Setting
Unit temperature control:
▪
#: [2.9]
▪
Code: [C-07]
Number of water temperature zones:
▪
#: [4.4]
▪
Code: [7-02]
External room thermostat for the main
zone:
▪
#: [2.A]
▪
Code: [C-05]
Benefits
Compared with radiators for one room:
▪
Comfort. You can set the desired room temperature, including schedules, for
each room via the room thermostats.
Setup
4
unit" [
123]
4
unit" [
126]
4
piping" [
104].
1 (External room thermostat):
Unit operation is decided by the
external thermostat.
0 (Single zone): Main
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.
B
A
a
Value
C
a
ERLA11~16D + EBVH16SU23D
Daikin Altherma 3 R F
4P655196-1A – 2022.05
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