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RSES Journal Archives
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Apr 2018
MSAC Hotline: Hot Surface Igniter
I have a furnace with a hot surface igniter that will not ignite. One thing led to another and we ended up changing the pressure switch and inducer motor. When the unit comes on it starts the blower wheel, then goes to the inducer. But when the inducer starts, nothing else happens. The surface igniter doesn’t glow either. I don’t know what else to do.
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Feb 2018
MSAC Hotline: Lubricant Compatability
I need to test the compatibility of a specific lubricant with refrigerant R-134A. I found a sealed glass tube method for testing, but it is a difficult test and is rarely found in laboratories in my country of Thailand. So do you have any other method to prove that compatibility?
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Jan 2018
MSAC Hotline: Motor Speeds
I’m looking at a stock motor. It is a three-speed, 1,075 rpm, single-phase, direct-drive blower motor. What are the rpm of the speeds?
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Dec 2017
MSAC Hotline: Digital Wet Bulb Thermometer
How does a digital wet bulb thermometer work, as there is no wick or water on it? Please provide an explanation of how a digital wet bulb thermometer measures wet bulb temperature?
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Nov 2017
MSAC Hotline: Blown Circuit Board Fuse
I have a 5-ton RTU that keeps blowing the 3 amp circuit board fuse. The contactor and circuit board have both been replaced and it still blows the fuse every other day. Any helpful thought as to what could cause this?
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Oct 2017
MSAC Hotline: Alternative Refrigerants Data
I have a couple of questions regarding alternative refrigerants. Why do some refrigerant manufacturers not include the “mass refrigerant flow rate” when comparing alternative refrigerant replacement?
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Sep 2017
MSAC Hotline: Hydrotest Piping Pressure
What pressure do you hydrotest piping for 407C? Does this question make sense?
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Jul 2017
MSAC Hotline: Tandem Compressors
The Manufacturers’ Service Advisory Council provides expert answers to your technical questions
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Jun 2017
MSAC Hotline: Superheat
The Manufacturers’ Service Advisory Council provides expert answers to your technical questions
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May 2017
MSAC Hotline: POE Oil
The Manufacturers’ Service Advisory Council provides expert answers to your technical questions.
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Results: 261 Articles Found
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