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Refrigerant piping work
Charging refrigerant
Measure the quantity of the refrigerant according to the length of the liquid side pipe. Add quantity of the refrigerant
using a scale.
Important information: regulation regarding the refrigerant used
This product contains fluorinated greenhouse gases. Do not vent gases into the atmosphere.
• Inform user if the system contains 5 tCO
for leakage at least once every 12 months, according to regulation No. 517/2014. This activity must be covered by
CAUTION
qualified personnel only. In the case of the situation above, the installer (or authorized person with responsibility for
final check) must 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 indelible ink on the refrigerant charge label supplied
with this product on and on this manual.
① The factory refrigerant charge of the product.
② The additional refrigerant amount charged in the field.
①+② The total refrigerant charge.
a. Factory refrigerant charge of the product: See unit name plate.
b. Additional refrigerant amount charged in the field. (Refer
NOTE
to the above information for the quantity of refrigerant
replenishment.)
c. Total refrigerant charge.
d. Refrigerant cylinder and manifold for charging.
Before charging, check whether the refrigerant cylinder has a siphon attached or not and position the cylinder accordingly.
Charging using a cylinder with a
siphon attached
Charge the liquid refrigerant with
the cylinder in upright position.
• The filled-out label must be adhered in the proximity of the product charging port (e.g. onto the inside of the
CAUTION
stop valve cover).
• Make sure that the total refrigerant charge does not exceed (A), the maximum refrigerant charge, which is
calculated in the following formula: Maximum refrigerant charge (A)= factory refrigerant charge (B) + maximum
additional refrigerant charge due to piping extension (C).
• Here below, the summary table with refrigerant charge limits for each products.
Model
AE090RXED**
e or more of fluorinated greenhouse gases. In this case, it must be checked
2
A
B
1800
1400
Charging using a cylinder
without a siphon attached
Charge the liquid refrigerant with
the cylinder in up-side-down
position.
(Unit : g)
C
400
ENGLISH-38
Indoor unit
②
d
Outdoor unit
Unit
kg
①, a
②, b
① + ②, c
Refrigerant type
GWP value
R-32
❋ GWP: Global Warming Potential
❋ Calculating tCO
e: kg x GWP/1000
2
R-32
GWP = 675
①
tCO
e
2
675
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