Auxiliary heater (stage 1 / 2) powers OFF when room temperature increases to 0.5°C below set temperature. Time delay for stage 1 auxiliary heat is selectable using request codes on an MA controller (PAR-40MAA), if customer is using a different controller, set up system with MA controller then reconnect customer controller:. From my research the standard aux heat functionality for this air handler is only called when the temperature is far enough below the set point for a certain period of time. Because our new heat pumps are cold-climate they have kept up with our desired temperatures quite well this winter.
Electric heat strips need to get set up exactly the same way in the MHK1/MHK2 as they would with a wired controller. There's still mode 11 and 23 (111 and 123 in the MHK1), but the MHK1 manual doesn't list them as the backup heater selections in the installation manual.. *Must be installed by a Diamond Contractor for MHK2 to qualify for 12-year warranty. Learn morekumo touch™ RedLINK™ Wireless Controller & Receiver kit