3 About the system
User reference guide
4
EJHA EHY32AA
Daikin Altherma hybrid monobloc
4P531181-1 – 2018.06
▪
Installer reference guide:
▪ Preparation of the installation, good practices, reference data,…
▪ Format: Digital files on
http://www.daikineurope.com/support-
and-manuals/product-information/
▪
Addendum book for optional equipment:
▪ Additional info about how to install optional equipment
▪ Format: Paper (in the box of the outdoor unit) + Digital files on
http://www.daikineurope.com/support-and-manuals/product-
information/
Latest revisions of the supplied documentation may be available on
the regional Daikin website or via your installer.
The original documentation is written in English. All other languages
are translations.
Available screens
Depending on your system layout and installer configuration, not all
screens in this document may be available on your user interface.
Breadcrumbs
1
20.0°C >
18.0°C >
7.4.1.1
Room temperature
Comfort (heating)
Eco (heating)
Select
Scroll
Breadcrumbs help you to locate where you are in the menu structure
of the user interface. This document also mentions these
breadcrumbs.
Example:
Go to [7.4.1.1]:
> User settings > Preset values >
Room temperature > Comfort (heating)
3
About the system
Depending on the system layout, the system can:
▪ Heat up a space
▪ Produce domestic hot water
NOTICE
Filling the water circuit
. Must be done by the installer to
make sure that the system can cold start up.
NOTICE
During holidays
. Do NOT turn OFF the power supply. The
power is needed for the frost protection functions of the
outdoor unit. Use the holiday mode instead.
3.1
About freeze protection
Frost can damage the system. To prevent the hydraulic components
from freezing, the heat pump's software is equipped with special
frost protection functions. These functions activate the pump, the
heat pump and the gas boiler when the temperature becomes too
low.
However, in case of a power failure, these functions cannot
guarantee protection. Therefore the installer provided extra
protection by doing one of the following:
▪ The installer added glycol to the water circuit. Glycol lowers the
freezing point of the water.
▪ The installer installed freeze protection valves. Freeze protection
valves drain the water from the system before it can freeze.
3.2
Components in a typical system
layout
Gas boiler (EHY32AA) + instant domestic hot water
(not for Switzerland)
a
b
c
e
f
d
B
C
A
Gas boiler (EHY32AA) + domestic hot water tank
a
b
c
e
f
d
B
C
A
Gas boiler (third party) + instant domestic hot water (not for
Switzerland)
a
b
c
e
f
d
B
C
A
A
Living room.
B
Bedroom.
C
Technical room.
Example:
Garage.
a
Outdoor unit heat pump
b
Gas boiler
c
Instant domestic hot water or domestic hot water (DHW) tank
d
Heat pump convectors or fan coil units
e
User interface in the living room, used as room thermostat
f
Radiators
4
Operation
4.1
Overview: Operation
You can operate the system via the user interface. This part
describes how to use the user interface:
Part
Description
At a glance
▪ Buttons
▪ Status icons
