Overview: Installation; Opening The Units; About Opening The Units; To Open The Outdoor Unit - Daikin ERGA08DAV3 Installer's Reference Manual

Item Description
6 User interface used as
room thermostat
7 Room thermostat
8 Outdoor ambient
temperature sensor
9 Indoor ambient
temperature sensor
10 Heat pump convector
Field supplied components
11 Shut-off valve
12 Electricity meter
13 Domestic hot water
pump
14 Alarm output
15 Changeover to external
heat source control
16 Space heating
operation control
17 Power consumption
digital inputs
18 Safety thermostat for
the main zone
19 Safety thermostat for
the additional zone
(a) Refer to name plate on outdoor unit.
(b) Minimum cable section 0.75 mm².
(c) Cable section 2.5 mm².
(d) Cable section 0.75 mm² till 1.25 mm²; maximum length:
50 m. Voltage-free contact shall ensure the minimum
applicable load of 15 V DC, 10 mA.
(e) Cable section 0.75 mm² till 1.25 mm²; maximum length:
500 m.
(f) Cable section 1.5 mm².
NOTICE
More technical specifications of the different connections
are indicated on the inside of the indoor unit.
NOTICE
A safety thermostat (normal closed contact) MUST be
installed for the main zone. See
safety thermostat (normally closed contact)" on
Backup heater Power supply
type
*6V 1N~ 230 V (6V)
3~ 230 V (6T1)
*9W 3N~ 400 V
7 Installation
7.1

Overview: Installation

This chapter describes what you have to do and know on-site to
install the system.
ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06
Wires Maximum
running
current
(e)
2
(b)
3 or 4 100 mA
(b)
2
(b)
2
(b)
2 100 mA
(b)
2 100 mA
(b)
2 (per meter)
(b)
2
(b)
2
(b)
2
(b)
2
(b)
2 (per input
signal)
(b)
2
(d)
2
"7.9.17 To connect the
page 43.
Required number of
conductors
2+GND
3+GND
4+GND
Typical workflow
Installation typically consists of the following stages:
1 Mounting the outdoor unit.
2 Mounting the indoor unit.
3 Connecting the refrigerant piping.
4 Checking the refrigerant piping.
5 Charging refrigerant.
6 Connecting the water piping.
7 Connecting the electrical wiring.
8 Finishing the outdoor installation.
9 Finishing the indoor installation.
INFORMATION
If you have limited installation space, do the following
before installing the unit in its final position:
connect the drain hose to the drain" on page
requires to remove one or both side panels.
INFORMATION
Depending on the units and/or the installation conditions, it
might be necessary to connect electrical wiring before you
can charge refrigerant.
7.2

Opening the units

7.2.1

About opening the units

At certain times, you have to open the unit. Example:
▪ When connecting the refrigerant piping
▪ When connecting the electrical wiring
▪ When maintaining or servicing the unit
DANGER: RISK OF ELECTROCUTION
Do NOT leave the unit unattended when the service cover
is removed.
7.2.2

To open the outdoor unit

DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
See "7.5.8 To connect the refrigerant piping to the outdoor unit" on
page 33 and "7.9.6 To connect the electrical wiring on the outdoor
unit" on page 38.
7.2.3

To open the indoor unit

1 Remove the top panel.
7 Installation
"7.4.4 To
30. It
Installer reference guide
25