York HA090 Technical Manual page 31

036-21371-001-B-0203
TABLE 4: COOLING CAPACITY - EA090 (CONT.)
Temperature of Air on Condenser Coil
Air On
Total
Evaporaor Coil
Capacity
CFM WB(°F)
(MBh)
72 85
67 74
2400
62 74
57 72
72 87
67 76
2850
62 75
57 73
72 88
67 77
3300
62 76
57 75
72 90
67 79
3450
62 78
57 77
72 93
67 81
3600
62 80
57 79
The capacities shown are gross ratings. For net capacities, determine the KW requirement of the supply air blower motor per the SUPPLY AIR BLOWER PER-
FORMANCE table. Convert KW to MBH by the following equation and deduct this equivalent heat from the gross cooling ratings.
Blower Motor Heat (MBH) = Blower Motor KW x 3.415
Apply the following correction factors to determine the unit performance at different CFM.
These ratings include the compressor KW and the following KW for the outdoor fan motor(s).
% Nominal Supply Air CFM
Total Capacity Correction Factor
Sensible Capacity Correction Factor
Kilowatt Correction Factor
NOTE: Sensible capacity can never exceed total capacity. A higher
corrected sensible capacity indicates a dry coil, and it should be
reduced to the corrected total capacity.
Outdoor Unit Size
Outdoor Fan Motor KW - 60 HZ
Blower motor KW is not included. Refer to the SUPPLY AIR BLOWER PERFORMANCE table for the KW rating of the supply air blower motor at the design
conditions and add this power requirement to the KW rating.
Unitary Products Group
http://www.rezine.net
125°F
Total
Sensible Capacity (MBh)
1 2
Input Return Dry Bulb (°F)
86 83 80 77 74 71 68
(kW)
10.2 52 45 38 31 24
10.1 66 59 53 46 39 32 25
9.8 74 71 65 58 51 44 37
9.9 72 67 61 54 47 40 33
10.3 59 51 43 34 26
10.2 73 67 59 51 42 34 26
9.9 75 74 72 64 56 48 39
10.0 73 71 68 60 51 43 35
10.4 66 57 47 38 28
10.3 77 75 65 55 46 36 27
10.0 76 76 76 70 61 51 41
10.1 75 75 75 65 56 46 37
10.4 68 58 48 38 28
10.3 79 76 66 56 46 36 25
10.0 78 78 78 70 60 50 40
10.1 77 77 76 66 56 46 36
10.3 70 60 49 38 27
10.3 81 78 67 57 46 35 24
9.9 80 80 80 70 59 48 38
10.0 79 79 78 67 56 45 35
80 90 100 110
0.963 0.981 1.000 1.015
0.935 0.965 1.000 1.049
0.981 0.992 1.000 1.008
7-1/2 Ton
0.83
Page 31
- -
1 - These capacities are gross
ratings. For net capacity, deduct
- -
air blower motor, MBh = 3.415 x
kW. Refer to the appropriate
Blower Performance Table for the
kW of the supply air blower motor.
- -
2 - These ratings include the
condenser fan motors (total 1 kW)
- -
and the compressor motors but not
the supply air blower motor.
- -
120
1.030
1.098
1.019
Nominal Rating
7