York HA090 Technical Manual page 49

036-21363-002-B-0303
Air On
Evaporator Coil
Total
Capacity
(MBh)
WB
CFM
(°F)
72 105
67 98
3000
62 98
57 93
72 111
67 103
3750
62 103
57 98
72 117
67 109
4500
62 109
57 103
72 121
67 112
4750
62 112
57 106
72 124
67 115
5000
62 115
57 109
1
Capacities shown are gross ratings. For net capacities, determine the KW requirement of the supply air blower motor per the SUPPLY AIR BLOWER PERFORMANCE table on page 7.
Convert KW to MBH by the following equation and deduct this equivalent heat from the gross cool ing rat ings.
2
Apply the fol lowing correc tion factors to determine the unit performance at different CFM.
3
These rat ings include the compressor KW and the following KW for the outdoor fan motor(s).
% Nomi nal Sup ply Air CFM
To tal Ca pac ity Cor rec tion Fac tor
Sen si ble Ca pac ity Cor rec tion Fac tor
Kilo watt Cor rec tion Fac tor
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.
Out door Unit Size
Out door Fan Mo tor 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
Temperature of Air Condenser Coil
125°F
Sensible Capacity (MBh)
Total
Return Dry Bulb (°F)
Input
(kW)
86 83 80
15.3 68 60 51
15.0 87 78 70
14.9 98 87 79
14.9 93 87 78
15.5 80 70 59
15.2 99 91 80
15.1 103 98 90
15.1 98 95 90
15.7 92 79 66
15.4 109 103 90
15.4 109 109 101
15.3 103 103 101
14.0 96 82 68
13.8 112 106 92
13.7 112 112 105
13.7 106 106 104
12.4 99 84 69
12.2 115 109 94
12.1 115 115 108
12.1 109 109 107
Blower Motor Heat (MBH) = Blower Motor KW x 3.415
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
10 Ton
1.06
Page 49
1 - These capacities are gross
77 74 71 68
ratings. For net capacity, deduct
43 34 - -
air blower motor, MBh = 3.415 x
61 53 44 36
kW. Refer to the appropriate
70 62 53 44
Blower Performance Table for
70 61 53 44 the kW of the supply air blower
motor.
48 37 - -
69 58 47 37
79 68 58 47
79 68 57 46
53 40 - -
77 64 51 38
2 - These ratings include the
88 75 62 49
condensate fan motors (total 1
88 75 62 48
kW) and the compressor motors
but not the supply air blower
54 40 - -
motor.
78 64 50 36
91 77 63 49
90 76 62 48
54 39 - -
79 64 49 34
93 78 63 48
92 77 62 47
120
1.030
1.098
1.019
Nominal Rating
7