Mitsubishi Electric PQHY-P250YHM-A, Справочник данных

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(3) Correction by refrigerant piping length
To obtain a decrease in cooling/heating capacity due to refrigerant piping extension, multiply by the capacity
correction factor based on the refrigerant piping equivalent length in the table below.
(4) Correction by indoor unit airflow rate
PUHY-P250YJM-A, PUHY-P500YSJM-A, PQHY-P250YHM-A
1. PUHY-P250YJM-A, PQHY-P250YHM-A
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.42 × number of bent on the piping) m
2. PUHY-P500YSJM-A
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.50 × number of bent on the piping) m
• How to obtain piping equivalent length
Piping equivalent length (m)
Capacity correction coef
ficient
0.7
0.8
0.9
1
0 20 40 60 80 100 120 140 160 180
0.9
0.95
1
1.05
Airflow rate (m
3
/min)
Capacity correction f
actor
136
: 50/60Hz Standard
184
130 140 150 160 170 180 190
Airflow rate (m 3 /min)
Capacity correction f
actor
: 50/60Hz Standard
0.9
0.95
1
1.05
250 270 290 310 330 350
345 255
PFD-P250VM-E
PFD-P500VM-E