Setting Up An External Temperature Sensor; Preparation; Overview: Preparation; Preparing The Installation Site - Daikin ERGA08DAV3 Installer's Reference Manual

6 Preparation

P
h
c
b
a
C
e
A B
P Produced heat
h
C Consumed energy
e
A Outdoor unit
B Backup heater
a Limited outdoor unit operation
b Full outdoor unit operation
c Backup heater step 1 turned ON
5.6 Setting up an external temperature
sensor
You can connect one external temperature sensor. It measures the
indoor or outdoor ambient temperature. We recommend to use an
external temperature sensor in the following cases:
Indoor ambient temperature
▪ In room thermostat control, the user interface used as room
thermostat (EKRUDAS)
temperature. Therefore, the user interface used as room
thermostat must be installed on a location:
▪ Where the average temperature in the room can be detected
▪ That is NOT exposed to direct sunlight
▪ That is NOT near a heat source
▪ That is NOT affected by outside air or air draught because of,
for example, door opening/closing
▪ If this is NOT possible, we recommend to connect a remote indoor
sensor (option KRCS01-1).
▪ Setup: For installation instructions, see the installation manual of
the remote indoor sensor.
▪ Configuration: Select room sensor [9.B].
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.
▪ Configuration: Select outdoor sensor [9.B].
▪ When the power saving functionality of the outdoor unit is active
(see "8 Configuration" on page
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.
Installer reference guide
16
measures the indoor ambient
44), the outdoor unit is turned
6 Preparation
6.1

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 refrigerant piping
▪ Preparing the water piping
▪ Preparing the electrical wiring
6.2 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.
NOTICE
This unit is designed for operation on 2 temperature zones:
▪ underfloor heating in the main zone, this is the zone
with the lowest water temperature,
▪ radiators in the additional zone, this is the zone with
the highest water temperature.
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).
WARNING
DO NOT reuse refrigerant piping that has been used with
any other refrigerant. Replace the refrigerant pipes or
clean thoroughly.
6.2.1 Installation site requirements of the
outdoor unit
INFORMATION
Also read the following requirements:
▪ General installation
"General safety precautions" chapter.
▪ Refrigerant piping
difference). See further in this "Preparation" chapter.
Mind the following spacing guidelines:
>250 >350
b
a
(mm)
a Air outlet
b Air inlet
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +
site requirements. See the
requirements (length, height
b >250
a
>250
(mm)
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06