UPDATED A5 Panasonic technical handbook F 2025 - Flipbook - Page 124
ECOi VRF ME2 2-Pipe Additional Refrigerant Charge - Example
2-Pipe ME2 Additional Refrigerant Charge Information
U-**ME2E8
Required Amount of Additional Refrigerant Charge
= [ (Amount of additional refrigerant charge per metre of each size of liquid tube x its tube length)+(...)+( ...)]
+ [(Necessary amount of additional refrigerant charge per outdoor unit)+(...)+( ...)]
Pipe Size Pipe Length
kg/m
"
m
1 1/8=
15
x
0.49
7/8=
15
x
0.366
3/4=
15
x
0.259
5/8=
15
x
0.185
1/2=
15
x
0.128
3/8=
15
x
0.056
1/4=
15
x
0.026
Total Pipework Additional Charge
F - GAS REGULATIONS
Total system charge must be
clearly stated on the outdoor
unit label.
124
Sub-total
=
=
=
=
=
=
=
7.35
5.49
3.885
2.775
1.92
0.84
0.39
22.65
Base Outdoor Unit Charge
Additional Outdoor Unit Charge
Additional charge main unit
=
7
Base charge main unit
=
8.3
Additional charge sub unit 1
=
7
Base charge sub unit 1
=
8.3
Additional charge sub unit 2
=
5.5
Base charge sub unit 2
=
5.6
Additional charge sub unit 3
=
0
Base charge sub unit 3
=
0
19.5
Total Base Charge
Total Additional Charge Outdoor
Total Additional Charge Pipework (22.65) + Outdoor Unit Additional (19.5)
42.15
Total Charge = Additional Charge (42.15) + Total Base Charge (22.2)
64.35
22.2
