4 Operation
User reference guide
6
EHYH EHYHBH/X05+08AA + EHYKOMB33AA
Daikin Altherma hybrid heat pump
4P3556321 – 2013.05
4.3.3
Turning ON/OFF controls
About turning ON/OFF controls
Before you can control…
You have to turn ON…
Room temperature
Room temperature control
(Room)
Main (+ additional) leaving water
temperature
Main (+ additional) leaving water
temperature control (LWT main
and LWT add)
Main and additional leaving
water temperature control are
always turned ON or OFF
together.
DHW tank temperature
Domestic hot water control
(Tank)
Instant DHW temperature
Instant domestic hot water
control (DHW)
If you turn ON…
Then…
Room temperature control
Main (+ additional) leaving water
temperature control is
automatically turned ON.
Main (+ additional) leaving water
temperature control
Room temperature control is
NOT automatically turned ON.
If you turn OFF…
Then…
Room temperature control
Main (+ additional) leaving water
temperature control is NOT
automatically turned OFF.
Main (+ additional) leaving water
temperature control
Room temperature control is
automatically turned OFF.
To check if a control is turned ON or OFF
1
Go to the home page of the control.
Example:
Room
temperature home page (Room).
2
Check if the LED is ON or OFF.
Note:
If the control is turned
OFF, OFF is also displayed on the screen.
To turn ON or OFF the room temperature control
1
Go to the room temperature home page (Room).
2
Press
.
To turn ON or OFF the leaving water temperature (main +
additional) control
1
Go to one of the following the home pages:
▪ Main leaving water temperature home page (LWT main)
▪ Additional leaving water temperature home page (LWT add)
2
Press
.
To turn ON or OFF the domestic hot water control
1
Go to the DHW tank temperature home page (Tank).
2
Press
.
To turn ON or OFF the instant domestic hot water control
1
Go to the instant DHW temperature home page (DHW).
2
Press
.
4.4
Space heating/cooling control
4.4.1
About space heating/cooling control
Controlling space heating/cooling typically consists of the following
stages:
1
Setting the space operation mode
2
Controlling the temperature
4.4.2
Setting the space operation mode
About space operation modes
Depending on your heat pump model, you have to tell the system
which space operation mode to use: heating or cooling.
If a… heat pump model
is installed
Then…
Heating/cooling
The system can heat up and cool down a
space. You have to tell the system which
space operation mode to use.
Heating only
The system can heat up a space, but
NOT cool down a space. You do NOT
have to tell the system which space
operation mode to use.
To tell the system which space operation to use, you can do the
following:
You can…
Location
Check
which space operation mode is
currently used
.
Home pages:
▪ Room temperature
▪ Leaving
water
temperature (main
+ additional)
Set
the space operation
mode
.
Menu structure
Restrict
when
automatic changeover
is
possible.
To determine if a heating/cooling heat pump model is installed
1
Press
to go to the menu structure.
2
Check if [4] Operation mode is listed. If so, a heating/cooling
heat pump model is installed.
To check which space operation mode is currently used
1
Go to one of the following the home pages:
▪ Room temperature home page (Room)
▪ Main leaving water temperature home page (LWT main)
▪ Additional leaving water temperature home page (LWT add)
2
Check the status icon:
If you see…
Then…
Operation mode = heating.
Unit is NOT heating up your space.
However, the DHW tank can be
heating up.
Operation mode = heating.
Unit is heating up your space at this
moment.
Operation mode = cooling.
Unit is NOT cooling down your space.
However, the DHW tank can be
heating up.
Operation mode = cooling.
Unit is cooling down your space at this
moment.
