Replyi dont consider 249 excessive voltage. 269, 299 yeah, but not 249 or even 29. i see that everyday. what is the closed circuit voltage? high amps will kill anything that is not rated for it.
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I installed a 13 Seer Rheem Achiever package unit. A call back found a froze up coil due to a faulty fan delay on off-relay - 4 weeks old. ( The indoor blower pulls in immediately and then runs 50 seconds longer than compressor when T/stat is satisfied.) 2nd one failed today - at 8 weeks. My open circuit voltages are 249 VAC and 29 VAC for the control circuit. Everything else looks good. I'm down by the Everglades and we have plenty of storms now so I always put in a Supco surge protector with each unit. Now surges may still be an issue - but can excessive voltage kill these little stinkers?
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i dont consider 249 excessive voltage. 269, 299 yeah, but not 249 or even 29. i see that everyday. what is the closed circuit voltage? high amps will kill anything that is not rated for it.
Nest is POO!!
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The incoming voltage drops to 245 VAC - the control voltage drops to 27 VAC when unit is running.
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no problems there. maybe a a voltage fluctuation or a fan stopping/motor overheating when you are not there?
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eliminate the time delay!
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What is the voltage rating given on the equipment label? If this is single phase, why is the voltage so high?Originally Posted by ripley,fla
I would use an ICM monitor to make certain that there is a countdown to activation after a power problem, and a lockout if there is a problem.
You can get extended fan run time by using a stat such as a Vision Pro, and configure for extended fan run time in installer setup.
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2 Tim 3:16-17
RSES CMS, HVAC Electrical Specialist
Member, IAEI
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The unit calls for 230 VAC - it is a single phase unit. The voltage is what it is - the mobile home park is about a half mile from a sub station - but it shouldn't be a reason for 250 VAC supply. The monitor may be an option - the vision pro may allow me to 's**tcan the time delay. And just throwing away the time delay is also an option! Thanks for all answers. I'll see if my Rheem dealer can hook me up with a factory guru. Usually I hear "we have never had that problem before"
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You should contact the power Co.
The final voltage you get at the park is from the last transformer, and it may be defective or need a different turns ratio to be able to supply the correct voltage.
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2 Tim 3:16-17
RSES CMS, HVAC Electrical Specialist
Member, IAEI
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Don't the rheem 13 seers use the x-13 motors? Those modules can do some weird intermittent things. the 249 volts won't be an issue. That is within the units specs. Now if you get over 252 volts you could start seeing issues. Oddly enough the power company in my area can legally send 256 volts.
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