Hypertherm Koolant Koolers N-Series, User Manual, Page: 16 / 77

Site Planning ‐ Location Considerations
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5.2.5 Air Intake and Exhaust Clearance
5.2.5.1 Supply Clearance
The chillers are equipped with removable intake air filters on one side of the machine. Care must be taken to
ensure that adequate clearance is provided to ensure fresh air is able to enter the intake air filters. At least 3
feet of clearance is required between the intake air filter and any obstructions. If the intake air filter is facing a
facility wall at least 6 feet of clearance is required.
5.2.5.2 Exhaust Clearance
At least 8 feet of vertical clearance is required from the top of the exhaust fans to the building ceiling or any
other obstructions that could impede exhaust air flow.
CAUTION
Installing the chiller in a building corner should be avoided. Placing the chiller in a corner
prevents proper dissipation of the hot exhaust air and causes the exhaust air to re ‐ circulate
into the chiller air intake. This leads to high refrigeration head pressure, poor chiller
performance, and over ‐ heating the exhaust fan motors.
CAUTION
The chiller condenser fans are not designed for ducting. Ducting creates excessive
backpressure on the fans and can cause the fan motors to overheat.
Figure 4: Chiller Air Intake and Discharge Clearances
Hypertherm, Inc. Part Number: 810540