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2. CAPACITY TABLES
WR2
MEE15K052
2. CAPACITY TABLES
2-1. Correction by piping length
A decrease in cooling/heating capacity will occur due to piping length increase. Using the following correction factors according to
the equivalent length of the piping shown at 2-1-1 and 2-1-2 the capacity can be calculated. 2-1-3 shows how to obtain the equiv-
alent length of piping. Refrigerant piping and water piping have separate correction factors.
2-1-1. Cooling capacity correction
Piping equivalent length (m)
1.00
0.90
0.80
0.95
0.85
0.75
0.65
0.70
Cooling capacity correction factor
0 20 40 60 80 100 120 140 160 180
PQRY-P200YLM-A
100
150
200
300
Total capacity of indoor unit
PQRY-P200YLM-A
Water piping equivalent length to farthest indoor unit (m)
Cooling capacity correction factor
1
0.98
0.96
0.99
0.97
0.95
0.93
0.92
0.91
0.94
0 10 20 30 40 50 60 70
Piping equivalent length (m)
1.00
0.90
0.80
0.95
0.85
0.75
0.65
0.70
Cooling capacity correction factor
0 20 40 60 80 100 120 140 160 180
PQRY-P250YLM-A
125
188
250
375
Total capacity of indoor unit
PQRY-P250YLM-A
Water piping equivalent length to farthest indoor unit (m)
Cooling capacity correction factor
1
0.98
0.96
0.99
0.97
0.95
0.93
0.92
0.91
0.94
0 10 20 30 40 50 60 70
Piping equivalent length (m)
1.00
0.90
0.80
0.95
0.85
0.75
0.65
0.70
Cooling capacity correction factor
0 20 40 60 80 100 120 140 160 180
PQRY-P300YLM-A
150
225
300
450
Total capacity of indoor unit
PQRY-P300YLM-A
Water piping equivalent length to farthest indoor unit (m)
Cooling capacity correction factor
1
0.98
0.96
0.99
0.97
0.95
0.93
0.92
0.91
0.94
0 10 20 30 40 50 60 70
Piping equivalent length (m)
1.00
0.90
0.80
0.95
0.85
0.75
0.65
0.70
Cooling capacity correction factor
0 20 40 60 80 100 120 140 160 180
PQRY-P350YLM-A
175
263
350
525
Total capacity of indoor unit
PQRY-P350YLM-A
Water piping equivalent length to farthest indoor unit (m)
Cooling capacity correction factor
1
0.98
0.96
0.99
0.97
0.95
0.93
0.92
0.91
0.94
0 10 20 30 40 50 60 70
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