5 Piping installation
Installation manual
11
ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH
₂
O
4P663479-1 – 2021.07
d
c
b
a
e
f
a
Space heating/cooling water OUT (screw connection, 1")
b
Space heating/cooling water IN (screw connection, 1")
c
Domestic hot water OUT (screw connection, 1")
d
Domestic cold water IN (cold water supply)(screw
connection, 1")
e
Outdoor unit water OUT (screw connection, 1")
f
Outdoor unit water IN (screw connection, 1")
NOTICE
It is recommended to install shut-off valves on the space
heating/cooling water in and out connections, as well as on
the domestic cold water in and domestic hot water out
connections. These shut-off valves are field supplied.
NOTICE
Install air purge valves at all local high points.
NOTICE
A pressure relief valve (field supply) with an opening
pressure of maximum 10 bar (=1 MPa) must be installed
on the domestic cold water inlet connection in accordance
with the applicable legislation.
5.2.2
To connect a pressure vessel
1
Connect a suitably dimensioned and preset pressure vessel for
the heating system. There may not be any hydraulic blocking
elements between the heat generator and the safety valve.
2
Position the pressure vessel in an easily accessible place
(maintenance, parts replacement).
5.2.3
To fill the heating system
DANGER: RISK OF ELECTROCUTION
During the filling process, water can escape from any
leaking point and can cause an electrical shock if it comes
into contact with live parts.
▪ Before the filling process, de-energise the unit.
▪ After the first filling and before switching on the unit
with the mains switch, check whether all electric parts
and connection points are dry.
1
Connect a hose with a non-return valve (1/2") and an external
manometer (field supply) to a water tap and the fill and drain
valve. Secure the hose against slipping off.
j/k
e.1
B
AB
A
e.2
50%
(45%)
100%
0%
CH
Bypass
(B)
(A)
f
a
h
i
c j
k
d
b
g
50% (67%)
100%
0%
CH
DHW
(A)
(B)
a
Hose with a non-return valve (1/2") and an external
manometer (field supply)
b
Fill and drain valve
c
Space heating/cooling water OUT
d
Space heating/cooling water IN
Summary of Contents for Altherma 3 H MT ECH2O
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