I have been using a Johnson Controls a419 for years to regulate the temperature spread of a keg fridge. The goal is to keep the temperature spread as small as possible (1掳) between cycles. Typically with a mechanical thermostat you will gets swings of as much as 5掳+ of set point when the compressor might cycle on or off. Not ideal when you pour what is meant to be a 3掳 pint and it鈥檚 actually 8掳! Unfortunately the a419 sells for $$hundreds of dollars so I couldn鈥檛 justify a second one for my bar fridge. This MTS960 Meross Temperature Controller performs the same functions for a fraction of the cost! I set OFF at 2.5掳 with a user adjustable 1掳 differential. It turns ON at 3.5掳. Nice consistent temperature. It features a compressor delay setting so that it won鈥檛 immediately cycle back on which is hard on the compressor. Also, with scheduling, I set every day at 2.5掳 but 1 early morning a week I set it for 30掳 (any value it won鈥檛 reach so it stays off) for 6 hours. Automatic weekly defrost of the evaporator so that the drain hole doesn鈥檛 plug with ice! I added it to SmartThings as well so I can see the temperature history and confirm the defrost took place. Installation was easy. I had an unused rack hole with a plug that I removed. I pushed through the insulation to be sure it was clear of any condenser coil that may be running through the fridge wall. Then I drilled through the exterior from that inside hole to run the temperature probe. Dab of caulk to seal the probe cable through the fridge wall. Plugged the fridge into the Meross thermostat and the thermostat into the wall receptacle. Add to HomeKit and then link to the Meross App and you鈥檙e now ready to play with the settings. It鈥檚 been working great! If there was a way to automate keeping the fridge stocked my life would be perfect!
I have been using a Johnson Controls a419 for years to regulate the temperature spread of a keg fridge. The goal is to keep the temperature spread as small as possible (1掳) between cycles. Typically with a mechanical thermostat you will gets swings of as much as 5掳+ of set point when the compressor might cycle on or off. Not ideal when you pour what is meant to be a 3掳 pint and it鈥檚 actually 8掳! Unfortunately the a419 sells for $$hundreds of dollars so I couldn鈥檛 justify a second one for my bar fridge. This MTS960 Meross Temperature Controller performs the same functions for a fraction of the cost! I set OFF at 2.5掳 with a user adjustable 1掳 differential. It turns ON at 3.5掳. Nice consistent temperature. It features a compressor delay setting so that it won鈥檛 immediately cycle back on which is hard on the compressor. Also, with scheduling, I set every day at 2.5掳 but 1 early morning a week I set it for 30掳 (any value it won鈥檛 reach so it stays off) for 6 hours. Automatic weekly defrost of the evaporator so that the drain hole doesn鈥檛 plug with ice! I added it to SmartThings as well so I can see the temperature history and confirm the defrost took place. Installation was easy. I had an unused rack hole with a plug that I removed. I pushed through the insulation to be sure it was clear of any condenser coil that may be running through the fridge wall. Then I drilled through the exterior from that inside hole to run the temperature probe. Dab of caulk to seal the probe cable through the fridge wall. Plugged the fridge into the Meross thermostat and the thermostat into the wall receptacle. Add to HomeKit and then link to the Meross App and you鈥檙e now ready to play with the settings. It鈥檚 been working great! If there was a way to automate keeping the fridge stocked my life would be perfect!