Tech Challenge

A split air conditioner utilizing R-410A with a TXV feed device (and receiver) has a customer complaint of “warm, no […]

A split air conditioner utilizing R-410A with a TXV feed device (and receiver) has a customer complaint of “warm, no […]

A freezer utilizing R-402A with a TXV metering device (and receiver) has a customer complaint of “warm case.” The symptoms […]

A freezer utilizing R-402A with a TXV metering device (and receiver) has a customer complaint of “warm case.” The symptoms […]

A commercial rooftop utilizing R-410A with a TXV feed device (and receiver) has a customer complaint of “insufficient cooling.” The […]

A commercial rooftop utilizing R-410A with a TXV feed device (and receiver) has a customer complaint of “insufficient cooling.” The […]

An R-410A rooftop system with a fixed orifice has a customer complaint of insufficient cooling. The symptoms confirm a warm […]

An R-410A rooftop system with a fixed orifice has a customer complaint of insufficient cooling. The symptoms confirm a warm […]

A Coca Cola cooler utilizing R-134a with a TXV metering device with receiver, has a customer complaint of “warm pop.” […]

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An Ice Cream freezer utilizing R-404A with a TXV metering device (and receiver) has a customer complaint of “soft ice […]

An Ice Cream freezer utilizing R-404A with a TXV metering device (and receiver) has a customer complaint of “soft ice […]

A residential split heat pump system, in the cooling mode @ 86° F. outdoor ambient, utilizing R-410A, has a customer […]

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The answer to the May 2016 Tech Challenge.

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Here is the answer for the March 2016 Tech Challenge.

Here is the latest IE3 Tech Challenge.