March Tech Challenge – Answer
A rooftop system utilizing R-410 A with a fixed orifice has a customer complaint of insufficient cooling. The symptoms confirm […]
Tech Challenge
Tech Challenge – March 2022
A rooftop system utilizing R-410 A with a fixed orifice has a customer complaint of insufficient cooling. The symptoms confirm […]
January Tech Challenge – Answer
A frozen food case utilizing HFC R-404A with a TXV metering device (and receiver) has a customer complaint of “warm […]
Tech Challenge – January 2022
A frozen food case utilizing HFC R-404A with a TXV metering device (and receiver) has a customer complaint of “warm […]
November Tech Challenge— Answer
A commercial rooftop utilizing R-410A with a TXV feed device has a customer complaint of insufficient cooling. The symptoms confirm inadequate cooling and the compressor appears to be short cycling. What […]
Tech Challenge — November 2021
A commercial rooftop utilizing R-410A with a TXV feed device has a customer complaint of insufficient cooling. The symptoms confirm inadequate cooling and the compressor appears to be short cycling. […]
September Tech Challenge — Answer
A medium temperature beer cooler utilizing R-134a with a TXV metering device and liquid receiver, has a customer complaint of warm beer. The symptoms at the convenience […]
Tech Challenge – September 2021
A medium temperature beer cooler utilizing R-134a with a TXV metering device and liquid receiver, has a customer complaint of warm beer. The symptoms at the convenience […]
Tech Challenge – July 2021 Answer
An installed split A/C system utilizing R-410A with a fixed orifice metering device has a customer complaint of “insufficient cooling.” The symptoms […]
Tech Challenge – July 2021
An installed split A/C system utilizing R-410A with a fixed orifice metering device has a customer complaint of “insufficient cooling.” The symptoms […]
Tech Challenge May 2021 – Answer
A rooftop utilizing R-410A with a fixed orifice metering device has a customer complaint of “no cooling.” The symptoms confirm […]
Tech Challenge May 2021
A rooftop utilizing R-410A with a fixed orifice metering device has a customer complaint of “no cooling.” The symptoms confirm […]
Tech Challenge March 2021 – Answer
A medium temperature cooler utilizing R-134a with a capillary tube feed device has a customer complaint of warm beer. The […]
Tech Challenge March 2021
A medium temperature cooler utilizing R-134a with a capillary tube feed device has a customer complaint of warm beer. The […]
Tech Challenge January 2021 – Answer
A beer cooler utilizing R-134a with a TXV metering device with receiver, has a customer complaint of “warm product.” The […]
Tech Challenge January 2021
A beer cooler utilizing R-134a with a TXV metering device with receiver, has a customer complaint of “warm product.” The […]
Tech Challenge November 2020 – Answer
A commercial split heat pump system, in the cooling mode @ 88° F. outdoor ambient, utilizing R-410A, has a customer […]
Tech Challenge November 2020
A commercial split heat pump system, in the cooling mode @ 88° F. outdoor ambient, utilizing R-410A, has a customer […]
Tech Challenge
A rooftop utilizing R-410A with a TXV feed device has a customer complaint of insufficient cooling.The symptoms confirm inadequate cooling […]
Tech Challenge September 2019
A split A/C system utilizing R-22 with a TXV feed device (and receiver) has a customer complaint of “insufficient cooling.” The symptoms confirm inadequate cooling and the compressor appears to be running […]
