45 MBCA Ductless Unit and the “CP” Error Code
Most ductless products have all of the error codes listed in the installation and service manuals. Error codes listed in
Technical Services Manager
Gulf Coast District
If you have a 2-stage performance furnace, you have a heat mode called adaptive heat. Adaptive heat can be controlled with a single stage thermostat on a 2 stage performance unit with a call for heat on W1. The furnace control CPU determines what stage (low or high stage heat) is required based on stored previous run time.
The furnace will start with either low or high heat. If the furnace starts in low heat, the CPU will determine the time before switching to high heat. The time is 0-16 minutes. After 16 minutes, high stage will come on and stay on for the remaining of the heat cycle.
This can be very useful if there are not enough thermostat wires for 2 stage heating or a simple single stage thermostat is needed. Having a 2-stage furnace controlled from a single stage thermostat is a handy feature to have.
Most ductless products have all of the error codes listed in the installation and service manuals. Error codes listed in
We have multiple articles about the defrost boards for residential and commercial units on our website and each has addressed
There are several different types of ductless heating and cooling systems. These systems can be combined with various indoor and
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