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The CARRIER ehkmc05kn is a 5 kW electric heater kit designed for installation inside compatible air handler units. It provides supplemental or primary electric heat within the air handler cabinet, converting electrical energy to warm air delivered through the duct system. The kit is sized for trade installation by licensed HVAC technicians and is a factory-style add-on component rather than a field-fabricated assembly. At 5.73 pounds and compact overall dimensions, it fits within the designated heater section of the supported air handler models without modification to the cabinet.
This heater kit is suited for residential and light commercial applications where electric heat is required within a ducted air handler system. It is intended for use with the 40-45MB series and MUA air handler units. Installation typically occurs during initial equipment setup or as an upgrade when electric heat capacity is being added to an existing air handler that was not originally equipped with a heater element.
Designed for use with CARRIER 40-45MB series and MUA air handler units as stated in product documentation. Consult the air handler installation manual to confirm heater kit slot availability and electrical capacity before installation.
Installation must be performed by a licensed HVAC technician. Disconnect and lock out all electrical power to the air handler before accessing the heater section. Verify that the unit electrical supply circuit is rated for the added heater load in accordance with NEC requirements before energizing. Do not operate the heater without confirming proper airflow through the unit, as insufficient airflow can cause overtemperature conditions.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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