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Refrigeration Control for Greenhouse
We have a greenhouse with an evaporative cooler that is switched on
and off by a White-Rodgers 1609-101 (or 1609-105) temperature controller. This is a hydraulic action controller (with a probe or "bulb")that will close contacts on rise in temperature and open them on fall. The controller handles a full load of 7 amps at 120 volts. Our temperature controll needs are in the 60 to 90 F range, though the controller extends well beyond this. Our problem is that the high humidity in the greenhouse causes these mechanically-based controllers to fail within a few years. We are wondering if any growers can suggest an alternative controller with similar characteristics that would be more suitable for a greenhouse environment? White-Rodgers does not make any controllers of different design than the 1609-series. |
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