Atlantic 024200, Installation And Commissioning Instructions

Page: 28 / 80

• First seal test
- Remove the protective plugs ( B ) from the charging
hole ( Schrader ) in the "Gas" valve (large diameter).
- Connect the high pressure hose to the Manifold
-Connect the bottle of nitrogen to the Manifold
(Use only dry nitrogen type U)
- Pressurize the refrigerant circuit with nitrogen
(10 bar maximum) ("Gas" connection – condensor -
"Liquid" connection assembly).
- Let the circuit under pressure for 30 minutes.
Lo Hi
UE
MH
Liaison...
liquide
gaz
Haute
pression
Azote
10 bars max.
30 mn mini
High
pressure
Nitrogen
Max. 10 bar
during 30 mn mini.
Connection
Liquid
Gas
- Search for leaks with a leak detector product, repair
and repeat the test.
Lo Hi
UE
MH
Liaison...
liquide
gaz
Haute
pression
Contrôle
d’étanchéité
Vanne fermée,
Contrôle pression
High
pressure
Closed valve,
pressure control
Leak control
- When the pressure is stable and leakage is excluded,
drain nitrogen letting a pressure above atmospheric
pressure (0,2 to 0,4 bar).
• Creating a vacuum and filling the refrigeration
connections with gas
- If necessary, calibrate the Manifold gauge to 0 bar
Adjust the vacuum gauge to the atmospheric pressure
(around 1013 mbar)
- Connect the vacuum pump to the Manifold Connect
a vacuum gauge if the vacuum pump is not equipped.
Lo
Hi
UE
MH
Liaison...
liquide
gaz
Haute
pression
Vacuomètre
Pompe à vide
High
pressure
Vacuum pump
Connection
Liquid
Gas
Vacuum gauge
- Create a vacuum until the residual pressure* in the
circuit falls below the value given in the following table.
(* measured with the vacuum gauge)
T °C 5°C<T<10°C 10°C<T<15°C 15°C < T
Pmax
- bar
- mbar
0 009
9
0 015
15
0 020
20
figure 25 - Connexion of the hose on the "Gaz" valve
-Let the pump continue to operate for another
30 minutes minimum after reaching the vacuum.
- Close the Manifold valve and then stop the vacuum
pump without disconnecting any of the hoses in
place
"
If the outdoor temperature is between +5 and
+10 °C, use method 3 empty (see ANNEX 2).
- Remove the access plugs ( A ) from the valve controls.
- If an additional charge is requires, add the additional
charge before filling the hydraulic unit with gas.
Please refer to the para 2.10.3, page 29
- First of all fully open the "Liquid" valve (small)
and then the "Gaz" valve (large) using a hex key
(counterclockwise direction) without forcing
excessively against the stop.
- Remove the hose rapidly to the Manifold
- Refit the 2 original caps (be sure they are clean) and
tighten them to the recommended tightening torque.
The sealing is performed in the caps only metal to metal.
The outdoor unit does not contain any additional
refrigerant, enabling the installation to be purged.
Flushing is strictly forbidden.
2.10.2 Sealing test
Once the refrigeration circuit has been gassed as
described above, check that all the refrigeration
connectors are gas-tigh (4 connectors).
The sealing test must be performed with an approved
gas detector. If the flarings have been made correctly,
there should be no leaks.
"
If there is a leak:
- Bring the gas into the outdoor unit (pump down).
- Make the connection again.
- Repeat the commissioning procedure
Refrigeration connexion
Plug (A)
Hex / Allen key of 4 mm
3-way valve
Load orifice
Plug (B)
Service hose (blue)
fitted with valve push-button
High pressure hose (red)
Refrigeration connecxion (Gas)
Installation and commissioning instructions "1485 - EN"
Heat pump alféa hybrid duo gas
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