The 5 min Monostable on delay timer allows the Inverter to stop and start during short sun outages and not destroy the compressor.
The 30 min Astable Swap timer allows you to run two refrigerators without increasing the load on the system.
Most refrigerators only run 40 Percent of the time. They can be used with freezers also.
Timers use the old stand by NE555 timer and a low leakage Tantilum Capacitor C1.
They are line voltage operated, use caution working on them they are NOT isolated.
Use both of them in Series, 5 Min. Delay first, for two refrigerators or freezers.
In the Swap timer R7, Z2, D2, and D3, can be left out. They are there to make the first on time the same length as the following times.
Without them the first on time will be about 5 Min. longer.
The 30 min Astable Swap timer allows you to run two refrigerators without increasing the load on the system.
Most refrigerators only run 40 Percent of the time. They can be used with freezers also.
Timers use the old stand by NE555 timer and a low leakage Tantilum Capacitor C1.
They are line voltage operated, use caution working on them they are NOT isolated.
Use both of them in Series, 5 Min. Delay first, for two refrigerators or freezers.
In the Swap timer R7, Z2, D2, and D3, can be left out. They are there to make the first on time the same length as the following times.
Without them the first on time will be about 5 Min. longer.
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