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LEAK TEST WITH NITROGEN (before opening valves)
Pressure check the refrigerant system using high
pressure nitrogen in order to detect basic refrigerant
leaks Before performing the vacuum process and
releasing the factory R-410A charge into the refrigerant
pipes, it is the responsibility of the installer to pressurize
the whole system with nitrogen (using a cylinder with
pressure reducer) at a pressure above 4 MPa (gauge).
LEAK TEST WITH R-410A (after opening valves)
Before opening valves, discharge all the nitrogen into the
system and create vacuum. After opening valves check
leaks using a leak detector for refrigerant R-410A.
Once you have completed all the connections, check for
possible leaks using leak detector specifically designed
for HFC refrigerants.
Step 10 Adding refrigerant (R-410A)
Important information regulation regarding the
refrigerant used
This product contains fluorinated greenhouse gases. Do
not vent gases into the atmosphere.
CAUTION
•
fluorinated greenhouse gases. In this case, it has to
be checked for leakage at least once every 12 months,
according to regulation n°517/2014. This activity has to
be covered by qualified personnel only.
•
installer (or recognized person which has responsibility
for final check) has to provide a maintenance book,
with all the information recorded according to
REGULATION (EU) No 517/2014 OF THE EUROPEAN
PARLIAMENT AND OF THE COUNCIL of 16 April 2014
on fluorinated greenhouse gases.
Please fill in the following with indelible ink on the
refrigerant charge label supplied with this product and
on this manual.
: The factory refrigerant charge of the product.
: The additional refrigerant amount charged in the
field.
+
: The total refrigerant charge.
Indoor Unit
Unit
, a
, b
+
, c
Refrigerant type
R-410A
• GWP: Global Warming Potential
•
NOTE
a Factory refrigerant charge of the product: see unit
name plate
b Additional refrigerant amount charged in the
field(Refer to the above information for the
quantity of refrigerant replenishment.)
c Total refrigerant charge
d Refrigerant cylinder and manifold for charging
Outdoor Unit
②
d
①
kg
GWP value
2088
English
19
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