To select a 30XA chiller, use the Packaged Chiller Builder
program or follow one of the procedures below.
ENGLISH
I Determine 30XA unit size and operating con-
ditions required to meet given capacity at
given conditions.
Given:
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . 106 Tons
Leaving Chilled Water Temp (LCWT) . . . . . . . .42 F
Cooler Water Temp Rise . . . . . . . . . . . . . . . . 10° F
NOTE: For other than 10° F temperature rise, data
corrections must be made using the Packaged Chiller
Builder Program.
II From Cooling Capacities table on page 34 and
pressure drop curves on page 33, determine
operating data for selected unit.
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . .30XA120
Capacity . . . . . . . . . . . . . . . . . . . . . . . . 107.5 tons
Power Input . . . . . . . . . . . . . . . . . . . . . .126.7 kW
Cooler Water Flow . . . . . . . . . . . . . . . . 257.0 gpm
Cooler Pressure Drop . . . . . . . . . . .12.0 ft of water
I Determine 30XA unit size and operating con-
ditions required to meet given capacity at
given conditions.
Given:
Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . 450 kW
Leaving Chilled Water Temp (LCWT) . . . . . . . . 6 C
Cooler Water Temp Rise . . . . . . . . . . . . . . . 5.6° C
Condenser Entering Air Temp . . . . . . . . . . . . 35 C
Fouling Factor (Cooler). . . . . . . . .0176 (m
NOTE: For other than 5.6 C temperature rise, data
corrections must be made using the Packaged Chiller
2
· hr · F/Btu)
Builder Program.
II From Cooling Capacities table on page 36 and
cooler pressure drop curves on page 33,
determine operating data for selected unit.
Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30XA140
Capacity . . . . . . . . . . . . . . . . . . . . . . . . .458.1 kW
Power Input . . . . . . . . . . . . . . . . . . . . . .147.5 kW
Cooler Water Flow . . . . . . . . . . . . . . . . . . 19.7 l/s
Cooler Pressure Drop . . . . . . . . . . . . . . . 41.9 kPa
SI
2
· °C/W)
31