Airedale OptiChill FreeCool 500kW - 1365kW - Manual (Page 47)

Chillers OPTICHILL
Chillers
47
Installation & Maintenance : 6564868 02/2013
Commissioning Data
PUMP PACKAGES (OPTIONAL EXTRAS)
Use the formula below and the graphs provided to calculate the External Head Available:
Example Model Ref. = OPC800HE+D14
Ambient: = 35°C
Fluid = 100% Water
Inlet Fluid Temp. = 7°C
Outlet Fluid Temp. = 12°C (5°C

T)
Pump Selection = Single Standard Head - Standard ac Motor - Fixed Speed Option
Fluid Flow l/s = 40.0 l/s
EHA (kPa) = External Head Available
EHA (kPa) =
Total Pump Head Available
-
Unit Waterside Pressure Drop
EHA (kPa) = 123 - 33
EHA (kPa) = 90 kPa