To Fill The Heating System; To Fill The Heat Exchanger Inside The Storage Tank; To Fill The Storage Tank - Daikin Altherma ELSH12P30E Series Installation Manual

5.4.3

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.
e.1 e.2 B
j/k
AB
A
f
a
g
b
i
h
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
purge" [ 4 44]).
"8.2.2 To perform an air
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 height +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.
ELSH/X(B)12P30+50E
Daikin Altherma 3 R MT ECH₂O
4P708484-1 – 2023.03
50%
0% 100%
Bypass
CH
(B) (A)
d
c
j
k
50%
100%
0%
CH
DHW
(A) (B)
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 "8.2.2 To perform an air
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.
5.4.4 To fill the heat exchanger inside the
storage tank
Following heat exchanger have to be filled with water before the
storage tank can be filled:
▪ The domestic hot water heat exchanger
NOTICE
To fill the domestic hot water heat exchanger, use a field
supply filling kit. Make sure you comply with the applicable
legislation.
1 Open the shut-off valve for the cold water supply.
2 Open all hot water taps in the system to make sure that the
tapped water flow is as high as possible.
3 Keep the hot water taps open and the cold water supply running
until no more air is vented from the taps.
4 Check for water leaks.
▪ The bivalent heat exchanger (only for some models)
5 Fill the bivalent heat exchanger with water by connecting the
bivalent heating circuit. If the bivalent heating circuit will be
installed on a later stage, fill the bivalent heat exchanger with a
filling hose until water comes out of both connections.
6 Do air purge on the bivalent heating circuit.
7 Check for water leaks.
5.4.5

To fill the storage tank

NOTICE
Before the storage tank can be filled, the heat exchangers
inside the storage tank have to be filled, see previous
chapters.
Fill the storage tank with a water pressure <6 bar and a
flow speed <15 l/min.
Without installed drainback solar kit (option)
1 Connect a hose with non-return valve (1/2") to the drainback
connection.
2 Fill the storage tank until water spills from the spillover
connection.
3 Remove the hose.
5 Piping installation
purge" [ 4 44].
Installation manual
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