To Fill The Space Heating Circuit; To Fill The Domestic Hot Water Tank; To Insulate The Water Piping - Daikin Altherma EJHA04AAV3 Installation Manual

Possibility 2 With T-joint (field supply) + shut-off valve
(field supply).
b2
5.3.4

To fill the space heating circuit

In case of dedicated gas boiler
INFORMATION
Air purge valves. In case of *HY2KOMB28+32AA gas
boiler, the following air purge valves are possible:
▪ Manual air purges valves on the shut-off valves (option
EKBALLV1).
▪ Manual air purge valve inside the *HY2KOMB28+32AA
gas boiler.
▪ Manual or automatic field-supplied air purge valves.
▪ Note: Automatic air purge valves are NOT allowed if
glycol is used.
Before filling the space heating circuit, the gas boiler MUST be
installed.
1 Flush the installation thoroughly to clean the circuit.
2 Connect the water supply hose to the fill/drain point.
Note: The fill/drain point can be:
▪ Field supplied
▪ Part of option EKFL1A
*HY2KOMB28+32AA gas boiler)
3 Power up the gas boiler to see the pressure indication on the
boiler display.
4 If an automatic air purge valve was installed, make sure it is
open.
5 Fill the circuit with water until the boiler display indicates a
pressure of ±2 bar (with a minimum of 0.5 bar).
Note: The pressure relief valve of the outdoor unit is designed
to open at 3 bar.
6 Purge air from all manual air purge valves in the system (open,
purge air, close).
7 Check the pressure. If it is too low, repeat from step 5.
8 Turn ON the pump, and check if you can still hear air in the
circuit. After ±1 min, turn it OFF.
Note: To turn the pump ON and OFF, use the air purge
function on the outdoor unit's user interface. See
perform an air purge" on page 27.
9 Purge air again from all manual air purge valves in the system
(especially if you heard air in the circuit).
10 Check the pressure again. If it is too low, repeat from step 5.
11 Disconnect the water supply hose from the fill/drain point.
EJHA04AAV3
Daikin Altherma hybrid monobloc – Heat pump module
4P530607-1B – 2018.10
b2
3
1
2
(filling loop kit for the
"7.2.1 To
In case of third-party gas boiler
INFORMATION
Air purge valves. In case of third-party gas boiler, the
following air purge valves are possible:
▪ Manual air purge valves on the shut-off valves (option
EKBALLV1).
▪ Manual or automatic air purge valve inside the third-
party gas boiler.
▪ Manual or automatic field-supplied air purge valves.
▪ Note: Automatic air purge valves are NOT allowed if
glycol is used.
Before filling the space heating circuit, the gas boiler MUST be
installed.
1 Flush the installation thoroughly to clean the circuit.
2 Connect the water supply hose to the fill/drain point.
Note: The fill/drain point can be:
▪ Field supplied
▪ Part of the existing installation
3 Power up the gas boiler, and make sure you can read out the
pressure indication.
Note: The pressure indication can be:
▪ On the boiler display of the third-party gas boiler
▪ On a field-supplied manometer
4 If an automatic air purge valve was installed, make sure it is
open.
5 Fill the circuit with water until the boiler display indicates a
pressure of ±2 bar (with a minimum of 0.5 bar).
Note: The pressure relief valve of the outdoor unit is designed
to open at 3 bar.
6 Purge air from all manual air purge valves in the system (open,
purge air, close).
7 Check the pressure. If it is too low, repeat from step 5.
8 Turn ON the pump, and check if you can still hear air in the
circuit. After ±1 min, turn it OFF.
Note: To turn the pump ON and OFF, use the air purge
function on the outdoor unit's user interface. See
perform an air purge" on page 27.
9 Turn ON the bivalent signal test, and check if you can still hear
air in the circuit. After ±1 min, turn it OFF.
Note: To turn the bivalent signal test, see
an actuator test run" on page 28.
10 Purge air again from all manual air purge valves in the system
(especially if you heard air in the circuit).
11 Check the pressure again. If it is too low, repeat from step 5.
12 Disconnect the water supply hose from the fill/drain point.
5.3.5

To fill the domestic hot water tank

For installation instructions, see the installation manual of the
domestic hot water tank.
5.3.6

To insulate the water piping

The piping in the complete water circuit MUST be insulated to
prevent condensation and reduction of the heating 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).
5 Installation
"7.2.1 To
"7.2.3 To perform
Installation manual
15