Filling The Heating System - Daikin Altherma 3 H HT ECH2 O Referenzhandbuch Für Den Monteur

Fig. 3-48 Filling the buffer tank - without connected DrainBack
solar system
1
Solar inflow
2 Safety overflow
3.8.4

Filling the heating system

DANGER: RISK OF ELECTROCUTION
During the filling process, water can escape from any leak-
ing points and can cause an electric shock if it comes into
contact with live parts.
▪ Before the filling process, de-energise the indoor unit.
▪ After the first filling and before switching on the indoor
unit at the mains switch, check that all electric parts
and connection points are dry.
WARNING
Polluted domestic water is hazardous to health.
▪ When filling the heating system, make sure that heating
water cannot flow back into the domestic water pipe.
Daikin Altherma ETS(X/H)(B)-D
Heat pump (indoor unit) with integrated heat accumulator
008.1447299_00 – 06/2019 – EN
3
INFORMATION
Comply with the instructions for the water connection (see
Chap. 3.6) and water quality (see
1 Connect the filling hose (Fig.
valve (1/2") and an external pressure gauge (on the building
side) to the combined filling and draining valve
and secure it against slipping off with a hose clamp.
2 Connect the drain hose to the vent valve, and route it away from
the device. Open the vent valve with the hose connected; check
to make sure that the other vent valve is closed.
3 Open the water tap (Fig. 3-49, item 4) on the feed pipe.
4 Open the combined filling and draining valve
and monitor the pressure gauge.
5 Fill the system with water until the external pressure gauge
shows that the system target pressure is reached (system height
+2 m; 1 m water column = 0.1 bar). The overpressure valve
must not actuate!
6 Close the manual vent valve as soon as water emerges free of
bubbles.
7 Close the water tap (Fig. 3-49, item 4). The combined filling and
draining valve must remain open in order to read off the water
pressure on the external pressure gauge.
8 Switch on the power supply of the indoor unit.
9 In the RoCon+ HP controller in the "Operating mode" menu, se-
lect the "Heating" operating mode [→ Main menu → Operating
mode].
– After the start phase, the indoor unit runs in hot water heat-
ing operation.
10 Constantly check the water pressure on the external pressure
gauge during hot water heating mode, and top up water via the
combined filling and draining valve
sary.
11 Vent the entire heating system as described
the system's control valves. At the same time, the underfloor
heating system can be filled and flushed by the underfloor dis-
tributor.
12 Again check the water pressure on the external pressure gauge,
and top up water via the combined filling and draining valve
(Fig. 3-49, item 2) if necessary.
13 Disconnect the filling hose (Fig.
valve from the combined filling and draining valve
item 2).
Set-up and installation
Chap. 1.2.6).
3-49, item 1) with the non-return
(Fig. 3-49, item 2)
(Fig. 3-49, item 2)
(Fig. 3-49, item 2) if neces-
in Chap. 5.3 (open
3-49, item 1) with non-return
(Fig. 3-49,
Installer reference guide
29