York YCWL Series - Page 21

FORM 150.26-EG1 (116)
JOHNSON CONTROLS
21
3. Determine the average full load kW and EER at 100 Tons.
100
108.8
X (84.4) = 77.6 kW
Tons x 12
kW
= 15.5
EER =
100 x 12
77.6
=
4. Determine the cond. Heat rejection as follows:
Heat Rejection (MBH) = (Tons x 12) + (kW x 3.415)
= (108.8 x 12) + (84.4 x 3.415)
= 1306 + 288
= 1594
5. Determine the GPM of condensing water as follows:
GPM Condenser Water =
MBH x 2
Cond. Water Range
=
1594 x 2
10
= 319 GPM
6. From curves on pages 14 and 15, the pressure drops with 200 GPM through the
evaporator and 319 GPM through the condenser of the Model YCWL118SE:
Evaporator Pressure Drop at 200 GPM = 9 ft
Condenser Pressure Drop at 319 GPM = 18 ft
The unit is suitable.
Selection Data (Cont'd)