Mitsubishi Electric PWFY-P200VM-E-AU Data Book page 114

(2)-4-3 How to obtain the equivalent piping length
1 PQHY-P200YHM
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.35 x number of bends in the piping) m
2 PQHY-P250, 300YHM
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.42 x number of bends in the piping) m
3 PQHY-P400, 450, 500, 550, 600, 650YSHM
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.50 x number of bends in the piping) m
4 PQHY-P700, 750, 800YSHM
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.70 x number of bends in the piping) m
5 PQHY-P850, 900YSHM
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.80 x number of bends in the piping) m
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