23
English
Instal
lation Pr
oc
edur
e
LEAK TEST WITH R-32 (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-32.
Once you have completed all the connections, check for
possible leaks using leak detector specifically designed for
HFC refrigerants.
Step 10 Adding refrigerant (R-32)
Precautions on adding the R-32 refrigerant
In addition to the conventional charging procedure,. the
following requirements shall be kept.
•
Make sure that contamination by other refrigerants
does not occur for charging.
•
To minimize the amount of refrigerant, keep the hoses
and lines as short as possible.
•
The cylinders shall be kept upright.
•
Make sure that the refrigeration system is earthed
before charging.
•
Label the system after charging, if necessary.
•
Extreme care is required not to overcharge the system.
•
Before recharging, the pressure shall be checked with
nitrogen blowing.
•
After charging, check for leakage before
commissioning.
•
Be sure to check for leakage before leaving the work
area.
Important information regulation regarding the
refrigerant used
This product contains fluorinated greenhouse gases. Do
not vent gases into the atmosphere.
CAUTION
•
Inform user if system contains 5 tCO
2
e or more of
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.
•
In case situation above (5 tCO
2
e or more of R-32),
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
Outdoor Unit
1
GWP = 675
Unit
kg
tCO
2
e
, a
, b
+ , c
Refrigerant type
GWP value
R-32
675
•
GWP: Global Warming Potential
•
Calculating tCO
2
e : kg x GWP / 1000
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
