You're going at it backward. You first decide the temperature requirements, ie:high, low, or medium, temperature. This will determine the saturation temperature required in the evaporator, the type of refrigerant, the compressor type, once again, low, medium or high temp. Low temp compressors...
First of all is the existing an evaporative condenser with refrigerant flowing through it or a water loop that cools water and pumps it inside to be used to condense refrigerant. If it is the latter I would not do it. I would replace the tower with a new one. I can tell you that with small...
If the chiller runs a fair amount of time in low ambient conditions which is common than vfd would make sense. If it's strictly for comfort air conditioning and fresh air is used between seasons than a 2 speed tower fan would do.
Most chillers I have seen have tower fans cycled to maintain...
For small a/c systems (direct expansion evaporators) 400 cfm per ton is the accepted nominal value for general applications that must keep the coil temperature above 32 degrees F to avoid freeze ups. These small systems cannot unload as fan speed goes down and load decreases. Cfm can be reduced...
