Lennox MCA Series

29
17.1. Cooling Chart
Table 11. Cooling - Fahrenheit (Celsius)
°F(°C) ODU(DB)
IDU(DB/WB)
0
(-17)
5
(-15)
15
(9.44)
45
(7.22)
75
(23.89)
85
(29.44)
95
(35)
105
(40.56)
115
(46.11)
120
(48.89)
PSI
70/59(21.11/15) 93 94 106 116 119 113 117 125 147 154
75/63
(23.89/17.22)
97 99 115 125 124 120 126 132 155 162
80/67
(26.67/19.44)
103 104 123 138 135 129 132 140 162 173
90/73
(32.22/22.78)
112 113 139 152 149 138 145 154 180 189
17.2. Capacity Request Calculations
TotalcapacityRequest=Σ(Normcode×HP)/10×modifyrate+correction.
T1 Ts
3
1
1
e
c
a
4
2
0
2
3
0
1
f
d
b
Figure 26. Cooling Mode
CapacityArea a b c d e f
NormCode(N) 3 2 1.5 1 .5 0
NOTE: The nal result is integer.
Plusalltheindoorcapacityrequesttogether,thenmodifyitbyT4.
Whenthereisonlyoneindoorunit: