Water cooled chillers are not sensitive to ambient fluctuations as they use a water tower to cool the condenser. We maintain this type of chiller which is a good choice if the refrigerant is ammonia: should a leak occur it will happen in the machine room- sounding the alarm and shutting down the plant. This type of chiller is also very popular where the refrigerant choice is HFC or HFO. No air cooled condenser leads to a compact design so the location of the installation can be an an inside plant room with the water tower outside. Legionella is prevented due to ultra violet lights and water treatment. There is no cause for concern as water towers are located away from air handling intakes for a building
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