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
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 […]
Tech Challenge July 2019 – Answer
A freezer utilizing R-22 with a TXV metering device (and receiver) has a customer complaint of “warm case.” The symptoms at the […]
Tech Challenge July 2019
A freezer utilizing R-22 with a TXV metering device (and receiver) has a customer complaint of “warm case.” The symptoms at the […]
Tech Challenge May 2019 – Answer
A commercial rooftop utilizing R-410A with a TXV feed device(and receiver)has a manager complaint of “no cooling.”The symptoms confirm inadequate […]
Tech Challenge May 2019
A commercial rooftop utilizing R-410A with a TXV feed device(and receiver)has a manager complaint of “no cooling.”The symptoms confirm inadequate […]
Tech Challenge March 2019 – Answer
A rooftop system utilizing R-22 with a fixed orifice has a customer complaint of insufficient cooling.The symptoms confirm the thermostat […]
March 2019 Tech Challenge
A rooftop system utilizing R-22 with a fixed orifice has a customer complaint of insufficient cooling.The symptoms confirm the thermostat […]
Tech Challenge January 2019 – Answer
A medium temperature cooler utilizing R-134a with a TXV metering device with receiver, has a customer complaint of “warm product.” […]
Tech Challenge – January 2019
A medium temperature cooler utilizing R-134a with a TXV metering device with receiver, has a customer complaint of “warm product.” […]
Tech Challenge – November 2018 Answer
A frozen food case utilizing R-507A with a TXV metering device (and receiver) has a customer complaint of “warm product.” […]
