ACI4H21
This specifically constructed unit is meant for cooling areas where the unit can be located right up against a tent, dimmer shack or portable building.
Features:
- Waterproof construction ensures
trouble-free exterior use - Instant on/instant off controls make
this unit simple to control - Quiet, reliable and powerful
- Requires 208/230 volt single phase power
Applications:
- Film Sets
- Temporary Structures
- Electrical Vaults

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Solid performer in rugged conditions that demand continuous reliable performance. Just plug these units in, hook up the duct, and turn them on.
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These temporary dimmer shacks are used to store lighting control mechanisms for the movie industry. They build up a tremendous amount of heat and require cooling to maintain operation. These 4 ton units are ideal for this application.