Immergas RAPAX 200 SOL V3 Mode D'emploi Et Avertissements page 24

Main components.
3
13
2
1
10
11
4
8
12
Key:
1 - Solar pump
2 - Non-return valve, thermometer and
cock
3 - Valve drain fitting
4 - Flow meter
5 - 6 bar safety valve
Solar circuit filling.
N.B.: If errors occur during installation, opera-
tion and maintenance, due to non compliance
with the technical laws in force, standards or in-
structions contained in this manual (or however
supplied by the manufacturer), the manufacturer
accepts no contractual and extra-contractual
liability for any damages and the appliance war-
ranty is invalidated.
The system can only be filled when:
- any operational residues have been eliminated
that may cause obstructions and deteriorate
the features of the glycol over time;
- any presence of water in the system has been
eliminated, which could otherwise cause dam-
age to the system in winter;
- the absence of leaks has been verified by
checks using air;
- the storage tank unit has been filled;
- the expansion vessel is preloaded as per the
manufacturer's or qualified professional's
instructions.
The system must be filled only using the glycol
supplied by Immergas via an automatic pump.
The system must be filled with vent valve closed.
Proceed as follows to fill the system:
1 connect the flow pipe of the automatic pump
to the fitting of the filling valve (9 Fig. 4)
located under the pump and open the valve.
2 connect the return pipe of the automatic pump
to the fitting of the draining valve (8 Fig. 4)
and open the draining valve.
3 The flow-rate regulator screw (11 Fig. 4)
must be orientated horizontally to ensure the
closure of the integrated ball valve. Leave the
thermometer in the reading position (ON).
IE
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13
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17
7
15
6
10
9
1
11
16
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5
4
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4
2
1
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14
12
6 - 3/4" connection for expansion vessel
7 - Manometer
8 - Draining valve
9 - Filling valve
10 - Insulating casing
11 - Flow rate regulator
12 - Boiler inlet
4 fill the filling pump tank with the amount of
glycol necessary plus a minimum amount to
be left on the bottom of the tank in order to
prevent air circulating inside the circuit.
5 The filling stage must have a minimum dura-
tion of 20 ÷ 25 minutes. This time is required
to completely remove all air from the circuit.
Every now and again open the flow rate regula-
tor adjustment screw in order to eliminate air
from inside (vertical position).
6 Eliminate any air in the solar circuit preferably
using the so-called "pressure shot" method,
which consists in raising the filling pressure
of the circuit followed by a quick opening of
the return valve (8 Fig. 4). This method allows
air to be expelled from the circuit.
7 Close the filling cock and switch the filling
pump off, open the regulator screw of the flow
rate regulator (notch in vertical position).
8 Leave the circuit pressurised. Any pressure
drop indicates a leak in the system.
9 Set the functioning pressure in the circuit at
2 bar + 0.1 bar for every metre in the distance
between the solar collector and the expan-
sion vessel (practically, set the same pressure
between expansion vessel and system).
10 Switch the solar pump on at a maximum speed
and make it run for at least 15 minutes.
11 Disconnect the filling pump and close the
fittings using the relevant screw caps.
Do not fill the system in conditions with strong
insolation and with the manifolds at high
temperatures.
Make sure that all air bubbles have been com-
pletely eliminated.
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3
7
6
2
6
5
4
3
2
1
14
8
13 - Output towards solar collector
14 - Reference for flow rate reading
15 - Non-return valve, thermometer and
cock
16 - Degasser
17 - Inlet from solar collector
18 - Output towards boiler
Solar circuit vent.
Any air present in the system must be bled:
- on start-up (after filling);
- if necessary, e.g. in the case of breakdown.
Attention: danger of burns from the liquid
contained in the collectors.
9