To Fill The Water Circuit; To Fill The Domestic Hot Water Tank; To Insulate The Water Piping; Connecting The Electrical Wiring - Daikin ERHQ011BA Installer's Reference Manual

7 Installation

7.3.2 To fill the water circuit

1 Connect the water supply hose to the drain and fill valve.
2 Open the drain and fill valve.
3 Make sure that the automatic air purge valve is open (at least 2
turns).
INFORMATION
For location of the air purge valve, see Components: Indoor
unit.
4 Fill the circuit with water until the manometer indicates a
pressure of ±2.0 bar.
5 Purge as much air as possible from the water circuit.
NOTICE
Air in the water circuit can cause malfunctioning of the
backup heater. During filling, it may not be possible to
remove all the air from the circuit. Remaining air will be
removed through the automatic air purge valves during
the initial operating hours of the system. Additional
filling with water afterwards may be required.
To purge the system, use the special function as
described in To perform an air purge. This function
should be used to purge the heat exchanger coil of the
domestic hot water tank.
6 Close the drain and fill valve.
7 Disconnect the water supply hose from the drain and fill valve.
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.

7.3.3 To fill the domestic hot water tank

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

7.3.4 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.
If the temperature is higher than 30°C and the humidity is higher than
RH 80%, the thickness of the sealing materials should be at least
20 mm to prevent condensation on the surface of the sealing.
7.4

Connecting the electrical wiring

DANGER: RISK OF ELECTROCUTION
INFORMATION
More information about the legend and the location of the
wiring diagram of the unit can be found in Wiring diagram.
Installer reference guide
25

7.4.1 About electrical compliance

Only for ERLQ006CAV3+ERLQ008CAV3
Equipment complying
(European/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 indoor units
See To connect the backup heater power supply.
7.4.2 To connect the electrical wiring on the
indoor unit
1 To open the indoor unit, see To open the indoor unit.
2 Wiring should enter the unit from the bottom.
3 Routing of the wiring inside the unit should be as follows:
a a a c c
with EN/IEC 61000-3-12
b b
EHBH/X16
Daikin Altherma - Low Temperature Split
4P313776-1 – 2012.05