Selecting chillers

[beida]

Hi
Brothers Engineers

I have a machine filling carton
How do I choose Water Chiller
Cooling capacity ?
Old machine as usual
Information
Table 1
chilled water Temperature
IN __________________ OUt
4.4 C ____________________ 6.5 C
Flow Rat = 15 GPM

exchanging = 21 000 Btu/hr ?

[The MG Pony]

pressed for time atm so a fast reply is, whats the chiller barrel ratted at? then select a matching condencing unit. and if it opperates at low capacity at times you'll need one with a hot gas by pass to ensure no freeze ups.

[beida]

But
I have in the workshop
used chiller
24 kW cooling capacity
Contains a plate heat exchanger swep
Flow 4 M3/h
But that does not contain hot gas by pass !! I almost needed 5c
Are you able to work with two of the same filling machine specifications the previous
Sorry, my english isn't good