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Piping installation
Installer reference guide
110
ERGA04~V3A+V37 + EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678716-1A – 2022.07
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
e.1
Valve motor
e.2
Valve motor latch
f
Water tap
g
Automatic air purge valve
h
Pressure gauge (field supply)
i
Pressure vessel (field supply)
j
Bypass valve
k
Tank valve
2
Prepare for air purging according to the instructions (see
of the unit with the manual air vent valves"
3
Open the water tap.
4
Open fill and drain valve and monitor the manometer.
5
Fill the system with water until the external manometer shows that the
system target pressure is reached (system 2 m; 1 m water column =
0.1 bar). Make sure that the pressure relief valve does not open.
6
Close the manual air vent valves as soon as water emerges free of bubbles.
7
Close the water tap. Keep the fill and drain valve open in case it is necessary to
repeat the filling procedure after the air purging of the system. See
8
Close the fill and drain valve and remove the hose with non-return valve only
after air purging is performed and the system is completely filled.
