Atlantic WOYG112LHT, Installation And Commissioning Instructions

Page: 28 / 92

3 .4 Filling the installation with gas
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This operation is reserved for installers familiar with the legislation for handling refrigerants.
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Creating a vacuum with a vacuum pump is essential (see ANNEX 1).
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Never use equipment used beforehand with any refrigerant other than a HFC.
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Remove the refrigerant circuit caps only when building the refrigerant connections.
ANNEX 1
Method for calibration and control of a vacuum
pump
- Check the oil level of the
vacuum pump.
- Connect the vacuum pump
with the vacuum gauge
according to the scheme.
- Pump down during 3 minutes.
- After 3 minutes, the pump reaches its threshold
value and the vacuum gauge needle does not move.
- Compare the obtained pressure with the value of the
table. Depending on the temperature, this pressure
must be less than the value indicated in the table.
=> If it’s not the case, replace the gasket, flexible
hose or the pump.
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 . . . .
ANNEX 2
Method 3 empty
- Connect the high pressure hose to the
Manifold
,
("Gas" connection). A valve must be mounted on
the flexible hose from the vacuum pump in order
to isolate it.
a) Create a vacuum until the desired value and
maintain this value during 30 min (see table Annex 1),
Lo Hi
UE
MH
Liaison...
liquide
gaz
Haute
pression
Jeu de manomètres
( Manifold )
Basse
pression
Vacuomètre
Pompe à vide
Manometer kit
( Manifold )
Low
pressure
High
pressure
Vacuum pump
Connection
Liquid
Gas
Vacuum gauge
b
) Stop the vacuum pump, close the valve end of
the service hose (yellow). Connect the hose to the
expansion valve of the nitrogen bottle, inject 2 bars,
close the flexible hose valve,
Lo Hi
UE
MH
Liaison...
liquide
gaz
Haute
pression
Azote
High
pressure
Nitrogen
Connection
Liquid
Gas
c) Reconnect the flexible hose to the vacuum pump,
turn on and gradually open the hose valve.
Lo
Hi
UE
MH
Liaison...
liquide
gaz
Haute
pression
High
pressure
Connection
Liquid
Gas
d)
Repeat this at least three times.
"
Reminder : It’s strictly forbidden to perform
these operations with refrigerant.
Vacuomètre
Flexible
bouché
Pompe
à vide
Clogged
flexible
hose
Vacuum
pump
Vacuum
gauge
If the outdoor temperature is below +10 °C:
- You must use 3 empty method (see ANNEX 2).
- It is advised to install a dehydrator filter
(and highly recommended if the outdoor
temperature is below +5 °C).
Installation and commissioning instructions "1485 - EN"
Heat pump alféa hybrid duo gas
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