Daikin ETSXB16E, Installer'S Reference Manual, Page: 96 / 316

8 | Piping installation
Installer reference guide
96
EPRA14~18D + ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
4P679467-1C – 2023.07
e.1
j/k
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 "To purge the air out
of the unit with the manual air vent valves" [
4
241]).
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
"11.4.2 Air
purge function" [
4
240].
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.