To Fill The Domestic Hot Water Tank; To Insulate The Water Piping; Connecting The Electrical Wiring; About Connecting The Electrical Wiring - Daikin Altherma EDLQ011-016CW1 Installer's Reference Manual

7 Installation
NOTICE
The water pressure indicated on the manometer will vary
depending on the water temperature (higher pressure at
higher water temperature).
However, at all times water pressure shall remain above
1 bar to avoid air entering the circuit.
7.7.8

To fill the domestic hot water tank

For installation instructions, see the installation manual of the
domestic hot water tank.
7.7.9

To insulate the water piping

The piping in the complete water circuit MUST be insulated to
prevent condensation during cooling operation and reduction of the
heating and cooling capacity.
To prevent the freezing of the outdoor water piping during winter
time, the thickness of the sealing material MUST be at least 13 mm
(with λ=0.039 W/mK).
If the temperature is higher than 30°C and the humidity is higher
than RH 80%, the thickness of the insulation materials should be at
least 20 mm to prevent condensation on the surface of the
insulation.
During winter, protect the water piping and shut‑off valves against
freezing by adding heat tape (field supply). If the outdoor
temperature can drop below –20°C and no heat tape is used, it is
recommended to install the shut‑off valves indoors.
7.8

Connecting the electrical wiring

7.8.1

About connecting the electrical wiring

Before connecting the electrical wiring
Make sure the water piping is connected.
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 units.
2 Connecting the electrical wiring to the outdoor unit (if
applicable).
3 Connecting the electrical wiring to control box EKCB07CAV3 (if
applicable).
4 Connecting the electrical wiring to option box EK2CB07CAV3 (if
applicable).
5 Connecting the electrical wiring to the backup heater (if
applicable).
6 Connecting the main power supply
7 Connecting the backup heater power supply (if applicable).
8 Connecting the user interface.
9 Connecting the shut–off valves (if applicable).
10 Connecting the electrical meters (if applicable).
11 Connecting the domestic hot water pump (if applicable).
12 Connecting the alarm output (if applicable).
13 Connecting the space cooling/heating ON/OFF output (if
applicable).
14 Connecting the changeover to an external heat source (if
applicable).
15 Connecting the power consumption digital inputs (if applicable).
Installer reference guide
40
7.8.2 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.
7.8.3 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:
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
Item
Outdoor unit
X3M
X4M
X5M
X7M
Control box / option box
X1M
X2M
EBLQ+EDLQ011~016CAV3+W1 + EK(2)CB07CAV3 +
Daikin Altherma low temperature monobloc
Installation method
c b
AA´
A´
c
a a
a b c
B
B
a
Tightening torque (N•m)
0.8~0.9
2.2~2.7
0.8~0.9
2.2~2.7
0.8~0.9
EKMBUHCA3V3+9W1
4P522034-1 – 2018.01