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Selecting Additional Refrigerant Charge
Basic charge
The basic amount of refrigerant for outdoor unit charged
in factory is :
Outdoor unit
(Series)
AE044MXTPEH
AE066MXTPEH
AE090MXTP∗H
AE120MXTP∗H
AE160MXTP∗H
Charge additional refrigerant according to the total
length of the pipe.
Each factory charging values are determined according
to basic pipe length as below.
AE044/066/090/120/160MXTP
When extra pipe length are required, additional charging
works must be implemented as describes below.
• Depends on the total length of the liquid side pipe.
Air to Water
Additional Charge(g) = {(L₁x20)+(L₂x50)}
Air to Air
Additional Charge(g) = {(L₁x20)+(L₂x50)} + (A2A)
Additional charge by indoor unit
NOTE
• L₁:Total length of liquid pipe Ø 6.35(m)
• L₂:Total length of liquid pipe Ø 9.52(m)
Refrigerant Charging
• Additional charging amount is determined based on
liquid pipe specifications.
Outdoor Unit of Liquid
Additional charging (g)
(A2A+A2W)Additional charging amount =
(sum of total length (m) of ø9.52) × 50g
+ (sum of total length (m) of ø6.35) × 20g
+ (A2A) Additional charge by Indoor unit
(A2A) Additional charge by Indoor unit: Refer to the
16 page 'Amount of additional refrigerant for each
indoor unit' table.
Factory charge(kg)
2.6
2.4
3.5
H < 10m
∗
ø6.35
ø9.52
20g/m
50g/m
Charging refrigerant
• The R410A refrigerant is blended refrigerant. Add only
liquid 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.
CAUTION
• Inform user if system contains 5 tCO₂e 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 tCO₂e or more of
R-410A), 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.
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