CellarPro Fan Cycling Control Switch (P/N 6972). All CellarPro cooling units can be operated in temperatures down to 40F without additional equipment.
Below 40F, you must add the addition of our compressor heater item #1727 , which is included as standard equipment for all outdoor hoods and cooling units, and allows CellarPro cooling units to be operated in temperatures down to 20F.
Below 20F, you should add the fan cycling control switch, which allows CellarPro cooling units to be operated in temperatures down to -20F (this lower temperature limit applies to all units except for dual-power valve-control split systems, which can be operated down to 0F with the addition of the fan cycling control switch).
CellarPro’s fan cycling control allows 1800 Series, Split, VS Series and Air Handler Series cooling units to be operated in temperatures down to 0°F (valve control split systems) or -20°F (electronic control split systems and all self-contained cooling units.)