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To connect a+b1+b2
2
2×
2×
a
Connection piece for b1
b1
Freeze protection valve (for water drainage)
b2
Vacuum breaker (head-up for air supply)
1 Open the top plate.
2 Open the front plate.
3 Open the rear plate.
4 Connect a+b1 as follows:
1 Remove the clip.
2 Remove and discard the stop with the sealing.
3 Attach the freeze protection valve (b1) to the connection piece
(a), using thread sealant.
1
4 Attach the connection piece to the outdoor unit.
EJHA04AAV3 + NHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P556861-1A – 2019.05
2×
1
3
4×
4 (a+b1)
5 (b2)
a
2
b1
5 Attach the clip.
6 Close the rear plate, front plate and top plate.
5 Do one of the following to connect b2 (2 possibilities):
NOTICE
Vacuum breaker (b2). To make proper drainage through
the freeze protection valve inside the outdoor unit possible,
the vacuuum breaker must be installed correctly:
▪ Directly at the water outlet of the unit, without any field
piping or valve in between.
▪ Head-up for air supply.
Possibility 1
With option EKBALLV1 (shut-off valves with
integrated connection for the vacuum
breaker).
b2
For installation instructions, see the installation
manual of the shut-off valves.
Possibility 2
With T-joint (field supply) + shut-off valve (field
supply).
b2
9.6.6
To fill the space heating circuit
In case of dedicated gas boiler
INFORMATION
Air purge valves. In case of NHY2KOMB28+32AA gas
boiler, the following air purge valves are possible:
▪ Manual air purges valves on the shut-off valves (option
EKBALLV1).
▪ Manual
air
NHY2KOMB28+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
NHY2KOMB28+32AA gas boiler)
9 Installation
b2
3
1
2
purge
valve
inside
(filling
loop
kit
for
Installer reference guide
the
the
39
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