Installer reference guide
23
EHVH/X16
Daikin Altherma - Low Temperature Split
4P313777-1 – 2012.05
7 Installation
7.2
Mounting the indoor unit
7.2.1 To install the indoor unit
1
Lift the indoor unit from the pallet and place it on the floor.
2
Slide the indoor unit into position.
3
Adjust the height of the leveling feet to compensate for floor
irregularities. The maximum allowed deviation is 1°.
7.3
Connecting the water piping
7.3.1 To connect the water piping
To facilitate service and maintenance, 2 shut-off valves are provided.
Mount the valves on the water inlet and on the water outlet. Mind their
the position. Orientation of the integrated drain and fill valves is
important for servicing.
1
Install the shut-off valves on the water pipes.
2
Screw the indoor unit nuts on the shut-off valves.
3
Connect the domestic hot water in and out pipes to the indoor
unit.
7.3.2 To connect the pressure relief valve to the
drain
The blow out of the pressure relief valve is coming out of the
backside of the unit.
The blow out should be connected to an appropriate drain according
to the applicable legislation. It is recommended to use a tundish.
NOTICE
Do NOT use excessive force when connecting the piping.
Deformation of the piping can cause malfunctioning of the
unit.
a
Space heating/cooling water out
b
Space heating/cooling water in
c
Domestic hot water out
d
Domestic cold water in (cold water supply)
NOTICE
It is recommended to install shut-off valves to domestic cold
water in and domestic hot water out connections. Shut-off
valves are field supplied.
120kg
3x
1
2
≤1°
a
c
b
d
NOTICE
To avoid damage to the surroundings in case of water
leakage, it is recommended to close the cold water inlet
stop valves during periods of absence.
NOTICE
Q
A drain device and pressure relief device should be
installed on the cold water inlet connection of the
domestic hot water cylinder.
Q
To avoid back siphonage, it is recommended to install
a non-return valve on the water inlet of the domestic
hot water tank in accordance with the applicable
legislation.
Q
It is recommended to install a pressure reducing valve
on the cold water inlet in accordance with the
applicable legislation.
Q
An expansion vessel should be installed on the cold
water inlet in accordance with the applicable
legislation.
Q
It is recommended to install the pressure relief valve
on higher position as top of the domestic hot water
tank.
Heating of the domestic hot water tank causes water
to expand and without pressure relief valve the water
pressure inside the tank can rise above the tank
design pressure. Also the field installation (piping,
tapping points, etc.) connected to the tank is subjected
to this high pressure. To prevent this, a pressure
relieve valve needs to be installed.
The overpressure prevention depends on the correct
operation of the field installed pressure relief valve. If
this is NOT working correctly, overpressure will deform
the tank and water leakage may occur. To confirm
good operation, regular maintenance is required.
a
Pressure relief blow-out
a
Содержание EHVH16S18CA
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