Fan Speeds - York MBC-MBH 25 Installation & Owner's Manual

For ducted installations, check airflow and static pressure against values shown in the following diagrams.
Insufficient airflow can cause operating problems such as icing which may damage the compressor in the
outdoor unit.
FAN CURVES : High Static Blower (50Hz)
Fan Performance MBC-MBH 25
250
200
HI
150
100
50
0
345 375 405 430 460 485
1200 1300 1400 1500 1600 1700
Airflow
Fan Performance MBC-MBH 45
300
250
HI
200
150
100
50
0
415 470 530 585 640
1400 1600 1800 2000 2200 2400
Airflow
Fan Performance MBC-MBH 55
300
250
200
150
100
50
0
455 540 625 710 795
1500 1800 2100 2400 2700
Airflow

FAN SPEEDS

ME
LO
L/S
515 540 570 600
CMH
1800 1900 2000 2100 2200
ME
LO
L/S
695 750 805 860
CMH
2600 2800 3000 3200
HI
ME
LO
L/S
880 965 1050
CMH
3000 3300 3600 3900
Fan Performance MBC-MBH 35
250
HI
200
150
100
50
0
415 470 525 580 635
1400 1600 1800 2000 2200 2400
Airflow
Fan Performance MBC-MBH 50
300
250
HI
200
150
100
50
0
470 580 690
800
1500 1900 2300 2700 3100
Airflow
Fan Performance MBC-MBH 65
350
HI
300
250
ME
200
150
100
50
0
345 485 625 765
1000 1500 2000 2500
Airflow
ME
LO
L/S
690 745 800
CMH
2600 2800 3000
ME
LO
L/S
910 1020
CMH
3500 3900
LO
L/S
905 1045
CMH
3000 3500 4000