8 Preparation
Installer reference guide
24
EJHA EHY32AA
Daikin Altherma Hybrid hydrosplit heat pump
4P531180-1 – 2018.06
▪ Calculating
Calculating the consumed energy
▪ The consumed energy is calculated internally based on:
▪ The actual power input of the outdoor unit
▪ The set capacity of the bottom plate heater (if applicable)
▪ The voltage
▪ Setup and configuration: To get accurate energy data, measure
the capacity (resistance measurement) and set the capacity via
the user interface for the bottom plate heater (if applicable).
7.6
Setting up the power consumption
control
▪ The power consumption control:
▪ Allows you to limit the power consumption of the outdoor unit.
▪ Configuration: Set the power limitation level and how it has to
be achieved via the user interface.
▪ The power limitation level can be expressed as:
▪ Maximum running current (in A)
▪ Maximum power input (in kW)
▪ The power limitation level can be activated permanently, but not
by digital inputs.
7.6.1
Permanent power limitation
Permanent power limitation is useful to assure a maximum power or
current input of the system. In some countries, legislation limits the
maximum power consumption for space heating and DHW
production.
P
i
t
DI
a
b
P
i
Power input
t
Time
DI
Digital input (power limitation level)
a
Power limitation active
b
Actual power input
Setup and configuration
▪ No additional equipment needed.
▪ Set the power consumption control settings in [A.6.3.1] via the
user interface (for the description of all settings, see
▪ Select full time limitation mode
▪ Select the type of limitation (power in kW or current in A)
▪ Set the desired power limitation level
NOTICE
Set a minimum power consumption of ±1.6 kW to
guarantee:
▪ Defrost operation. Otherwise, if defrosting is interrupted
several times, the heat exchanger will freeze up.
▪ Space heating and DHW production.
7.7
Setting up an external temperature
sensor
You can connect one external temperature sensor. It can measure
the outdoor ambient temperature. Daikin recommends to use an
external temperature sensor in the following cases:
Outdoor ambient temperature
▪ In the outdoor unit, the outdoor ambient temperature is measured.
Therefore, the outdoor unit must be installed on a location:
▪ At the north side of the house or at the side of the house where
the most heat emitters are located
▪ That is NOT exposed to direct sunlight
▪ If this is NOT possible, Daikin recommends to connect a remote
outdoor sensor (option EKRSCA1).
▪ Setup: For installation instructions, see the installation manual of
the remote outdoor sensor and the addendum book for optional
equipment.
▪ Configuration: Select outdoor sensor [A.2.2.B].
▪ When the power saving functionality of the outdoor unit is active
(see
), the outdoor unit is turned
down to reduce standby energy losses. As a result, the outdoor
ambient temperature is NOT read out.
▪ If the desired leaving water temperature is weather dependent, the
full time outdoor temperature measurement is important. This is
another reason to install the optional outdoor ambient temperature
sensor.
INFORMATION
The external outdoor ambient sensor data (either averaged
or instantaneous) is used in the weather-dependent control
curves. To protect the outdoor unit, the internal sensor of
the outdoor unit is always used.
8
Preparation
8.1
Overview: Preparation
This chapter describes what you have to do and know before going
on-site.
It contains information about:
▪ Preparing the installation site
▪ Preparing the water piping
▪ Preparing the electrical wiring
8.2
Preparing the installation site
Do NOT install the unit in places often used as work place. In case
of construction works (e.g. grinding works) where a lot of dust is
created, the unit MUST be covered.
Choose an installation location with sufficient space for carrying the
unit in and out of the site.
WARNING
The appliance shall be stored in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
Содержание Altherma EHY2KOMB28AA
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