AirStage AO54FJ, Service Manual

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Model name UTR-BP54U UTR-HD546U
A
UTR-HD546U
C
a+b+c+k=40m 70m (actual pipe length)
a+b+c+d+e+f+g+h+i+j+k=90m 115m (total pipe length)
Difference in height between the highest and the lowest indoor unit maximum 5m.
From outdoor unit to the first separation tube a=10m 60m (actual pipe length)
From the first separation tube to the farthest indoor unit b+c+k=35m 40m (actual pipe length)
Liquid pipe (mm)
Additional refrigerant
0.06 0.02
(kg/m)
9.52 6.35
Liquid pipe length (m) 35 55
Additional refrigerant
(0.06 x 35) + (0.02 x 55) - 1.8 = 1.4 (kg)
Pipe length
B
Pipe length
Selection of separation tube and header
Additional charge
Difference in height between outdoor unit and indoor units maximum 30m.
07-03