Johnson Controls Night Drop Equipped

Thermostat Instructions

The Johnson Controls A419 can be programmed for a night temperature differential. To set your night time temperature you will need an appliance timer. These can be purchased locally at Walmart, Kmart, hardware stores, etc. An inexpensive analog model will work fine.

1) To set the time that your night temperature will go into effect, set your appliance timer to turn “on” at the desired temperature drop time. Set it to turn “off” again at the time you wish the temperature to return to its daytime setting. Now plug the thin black power cord (2 prong, without a ground) into the timer, set the timer to the current time and plug the timer into your outlet.

2) Following the programming instructions included with your Johnson Controls unit program the temperature offset (OFS). For instance, if the daytime temp setting is 85 degrees and you want to drop to 75 at night you would set your offset at 10 degrees (85-75=10). When you wish to discontinue your night drop settings at the end of the breeding season simply unplug the cord from the appliance timer.

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