About Electrical Compliance; Erga04~08Dav3(A) + Ehvz04+08S18+23Da; Precautions When Connecting The Electrical Wiring; Guidelines When Connecting The Electrical Wiring - Daikin ERGA08DAV3 Installer's Reference Manual

7 Installation
Typical workflow
Connecting the electrical wiring typically consists of the following
stages:
1 Making sure the power supply system complies with the
electrical specifications of the heat pump.
2 Connecting the electrical wiring to the outdoor unit.
3 Connecting the electrical wiring to the indoor unit.
4 Connecting the main power supply.
5 Connecting the backup heater power supply.
6 Connecting the shut-off valves.
7 Connecting the electrical meters.
8 Connecting the domestic hot water pump.
9 Connecting the alarm output.
10 Connecting the space heating ON/OFF output.
11 Connecting the changeover to an external heat source.
12 Connecting the power consumption digital inputs.
13 Connecting the safety thermostat.
7.9.2

About electrical compliance

Only for ERGA04~08DAV3 (not for ERGA04~08DAV3A)
Equipment complying with
International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage
systems with input current >16 A and ≤75 A per phase.).
Only for the backup heater of the indoor unit
See "7.9.9 To connect the backup heater power supply" on
page 41.
7.9.3 Precautions when connecting the
electrical wiring
INFORMATION
Also read the precautions and requirements in the
following chapters:
▪ General safety precautions
▪ Preparation
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
7.9.4 Guidelines when connecting the electrical
wiring
Keep the following in mind:
▪ If stranded conductor wires are used, install a round crimp-style
terminal on the end of the wire. Place the round crimp-style
terminal on the wire up to the covered part and fasten the terminal
with the appropriate tool.
b a
a Stranded conductor wire
b Round crimp-style terminal
▪ Use the following methods for installing wires:
Installer reference guide
38
EN/IEC 61000‑3‑12 (European/
Wire type
Single-core wire
A
a Curled single-core wire
b Screw
c Flat washer
c b
Stranded conductor
wire with round
crimp-style terminal
a Terminal
b Screw
c Flat washer
O Allowed
X NOT allowed
Tightening torques
Item
M4 (X1M)
M4 (earth)
7.9.5 Specifications of standard wiring
components
Component ERGA04+06D
AV3
(a)
Power MCA 19.9 A
supply
Voltage
cable
Phase
Frequen
cy
Wire Must comply with applicable legislation
sizes
Interconnection Minimum cable section of 1.5 mm² and
cable
Recommended 20 A
field fuse
Earth leakage Must comply with applicable legislation
circuit breaker
(a) MCA=Minimum circuit ampacity. Stated values are
maximum values (see electrical data of combination with
indoor units for exact values).
7.9.6 To connect the electrical wiring on the
outdoor unit
1 Remove the switch box cover.

ERGA04~08DAV3(A) + EHVZ04+08S18+23DA +

Installation method
c b
AA´
A´
c
a a
a b c
B
B
a
Tightening torque (N•m)
1.2~1.5
ERGA08DAV3 ERGA04~08D
AV3A
24.0 A 15.9 A
230 V
1~
50 Hz
applicable for 230 V
25 A 16 A
EHVZ04+08S18+23DJ
Daikin Altherma 3 R F
4P495249-1B – 2019.06