Daikin Altherma 3 GEO, Installation Manual

6 Configuration

Installation manual

26

EGSAH/X06+10DA9W(G)

Daikin Altherma 3 GEO

4P569811-1 – 2019.02

CAUTION

If  there  are  2  zones  and  the  emitter  types  are  wrongly
configured, water of high temperature can be sent towards
a  low  temperature  emitter  (underfloor  heating).  To  avoid
this:

▪ Install an aquastat/thermostatic valve to avoid too high

temperatures towards a low temperature emitter.

▪ Make sure you set the emitter types for the main zone

[2.7]  and  for  the  additional  zone  [3.7]  correctly  in
accordance with the connected emitter.

NOTICE

An  overpressure  bypass  valve  can  be  integrated  in  the
system.  Keep  in  mind  that  this  valve  might  not  be  shown
on the illustrations.

6.2.4

Configuration wizard: Backup heater

The  backup  heater  is  adapted  to  be  connected  to  most  common
European  electricity  grids.  If  the  backup  heater  is  available,  the
voltage and maximum capacity must be set on the user interface.

Voltage

Depending  on  how  the  backup  heater  is  connected  to  the  grid  and
what voltage is supplied, the correct value needs to be set. In either
configuration, the backup heater will operate in steps of 1 kW.

#

Code

Description

[9.3.2]

[5‑0D]

▪ 0: 

230V, 1ph

▪ 2: 

400V, 3ph

Maximum capacity

During normal operation the maximum capacity is:

▪ 3 kW for a 230 V, 1N~ unit

▪ 6 kW for a 400 V, 3N~ unit

The maximum capacity of the backup heater can be limited. The set
value depends on the used voltage (see table below) and is then the
maximum capacity during emergency operation.

#

Code

Description

[9.3.5]

[4-07]

(1)

0~6 kW when voltage is set to 230 V,
1N~

0~9 kW when voltage is set to 400 V,
3N~

(1)

If the value [4-07] is set lower, then the lowest value will be
used in all operation modes.

6.2.5

Configuration wizard: Main zone

The most important settings for the main leaving water zone can be
set here.

Emitter type

Depending on the system water volume and the heater emitter type
of  the  main  zone,  heating  up  or  cooling  down  the  main  zone  can
take longer. The setting 

Emitter  type

 can compensate for a slow

or  a  quick  heating/cooling  system  during  the  heat  up/cool  down
cycle. The target delta T for the main zone depends on this setting.

In room thermostat control, 

Emitter  type

 influences the maximum

modulation  of  the  desired  leaving  water  temperature,  and  the
possibility  for  usage  of  the  automatic  cooling/heating  changeover
based on the indoor ambient temperature.

It is important to set 

Emitter type

 correctly and in accordance with

your system layout.

#

Code

Description

[2.7]

[2‑0C]

▪ 0: 

Underfloor heating

▪ 1: 

Fancoil unit

▪ 2: 

Radiator

The setting of the emitter type has an influence on the space heating
setpoint range and the target delta T in heating as follows:

Description

Space heating setpoint range

0: 

Underfloor heating

Maximum 55°C

1: 

Fancoil unit

Maximum 65°C

2: 

Radiator

Maximum 65°C

Control

Defines  how  the  operation  of  the  unit  is  controlled.  There  are  3
possibilities:

#

Code

Description

[2.9]

[C‑07]

▪ 0: 

Leaving water

▪ 1: 

External room thermostat

▪ 2: 

Room thermostat

Schedule

Indicates  if  the  desired  leaving  water  temperature  is  according  to  a
schedule. Influence of the LWT setpoint mode [2.4] is as follows:

▪ In 

Fixed

  LWT  setpoint  mode,  the  scheduled  actions  consist  of

desired leaving water temperatures, either preset or custom.

▪ In 

Weather  dependent

  LWT  setpoint  mode,  the  scheduled

actions consist of desired shift actions, either preset or custom.

#

Code

Description

[2.1]

N/A

▪ 0: 

No

▪ 1: 

Yes

6.2.6

Configuration wizard: Additional zone

The  most  important  settings  for  the  additional  leaving  water  zone
can be set here.

Emitter type

For  more  info  about  this  functionality,  see 

"6.2.5  Configuration

wizard: Main zone" on page 26

.

#

Code

Description

[3.7]

[2‑0D]

▪ 0: 

Underfloor heating

▪ 1: 

Fancoil unit

▪ 2: 

Radiator

Control

The  control  type  is  displayed  here,  but  cannot  be  adjusted.  It  is
determined by the control type of the main zone. For more info about
the  functionality,  see 

"6.2.5  Configuration  wizard:  Main  zone"  on

page 26

.

#

Code

Description

[3.9]

N/A

▪ 0: 

Leaving  water

  if  the  control  type

of the main zone is 

Leaving water

.

▪ 1: 

External  room  thermostat

 if the

control  type  of  the  main  zone  is

External  room  thermostat

 or 

Room

thermostat

.

Schedule

Indicates  if  the  desired  leaving  water  temperature  is  according  to  a
schedule.  Also  see 

"6.2.5  Configuration  wizard:  Main  zone"  on

page 26

.