Puron Advanced (R-454B) Refrigerant Dissipation Board Flash Code 13
With the changing of the new refrigerant, new controls have been added for safety incase of a refrigerant leak, the…
Category: Technical Services
How to Change the Blower Speed on an 820TB Furnace with a HK42FZ112 NFC Board
This article covers how to change the blower speed on furnaces equipped with the new NFC board HK42FZ112. After reading,…
Missing Serial Numbers on Infinity/Evolution User Interfaces
Have you ever noticed that (inside the software) some User Interfaces (UI) have serial numbers listed, and some don’t? Why…
Setting the Electronic Model Plug on The Primary Control Module (PCM)
The Primary Control Module (PCM) controls various functions of the outdoor unit. These functions are determined by the inputs the…
How to Wire and Check a Dissipation Board
In our last article, Understanding Active Dissipation, we covered the basic reasons why a system may have a refrigerant leak…
Defrost in Cool Mode
This article is in reference to typical Carrier, Bryant, Payne, and WeatherMaker Heat Pumps. Beware of the defrost cycle in…
Handling Refrigerant & Other Gases Safely
Refrigerants and other gases used in the HVAC industry need to be respected and handled safely. The information given here…
Understanding Active Dissipation
Along with new refrigerant for 2025, we’re also seeing new components for safety to be compatible with new Federal guidelines. …
Understanding A Model Number
Why would you need to know what the letters and numbers in the model number represent? Can knowing the information…
TXV Ice Bath
Have you ever seen a stuck TXV? Carrier typically uses hard shutoff valves on their equipment. A hard shutoff TXV…
