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Thread: Diagram help
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21-10-2013, 04:42 PM #1
Diagram help
Which device protects the defrost heater from overheatinf?
Where should ohms be taken to check defrost contacts what terminals? I was thinking 3 aND 4 defrost.jpg
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21-10-2013, 05:17 PM #2
Re: Diagram help
defrost1.jpg
Defrost thermal protection is in series with the heater
and the defrost contacts are 1 & 2 for the switch neutral
for continuity.
Rob
.Last edited by Rob White; 21-10-2013 at 05:21 PM.
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21-10-2013, 07:23 PM #3
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22-10-2013, 08:30 AM #4
Re: Diagram help
Freezer thermostat powers up the defrost timer motor.
To the optimist, the glass is half full. To the pessimist, the glass is half empty.
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22-10-2013, 04:13 PM #5
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22-10-2013, 11:17 PM #6
Re: Diagram help
There two circuits, compressor run and defrost switched by the timer motor. Common leg is line 1. So when the timer is a closed circuit between 1 and 4, it is on your cooling cycle, 1 and 2 (As currently shown in drawing) is defrost. If the thermostat is open circuit, no power is available for either cycles and therefore no power to timer motor.
NB: Many timer motors were wired to run 24/7. This one isn't.To the optimist, the glass is half full. To the pessimist, the glass is half empty.
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23-10-2013, 05:47 PM #7
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24-10-2013, 05:20 PM #8