NOTE: This kit will provide the necessary interface function when applied with User Interface -B version, or later, and FE4/5AN fan coils that are equipped with fan coil control HK38EA011 or HK38EA012. Fan coil control HK38EA011 is factory-installed in FE fan coils with minor revision B, or later, in the 14th digit of the fan coil model number. Electric heat cannot be used with Hydronic Interface Relay Kit.
The Interface Relay Kit consists of:
- a 22 VDC relay fitted with a rectifier circuit board that can be mounted within the fan coil
- a wiring harness that is pre-wired to the relay and terminated with a 12-pin AMP Mate-N-Lok plug that connects to the fan coil’s heater control connector
- two No. 16 AWG stripped leads for connecting the relay normally open contacts into the Hydronic system control circuit
- two mounting screws
- two wire nuts
NOTE: The relay provided with this kit may not be suitable for use with electronic control inputs using very low level current. Review the Hydronic equipment control power requirements prior to use of this kit. The minimum load rating for reliable switching of the relay contacts is 500 mA at 12VAC/VDC, additional loading may be required.
The maximum relay ratings are:
30 A @ 120/277VAC resistive
1.5 HP (10 A) @ 220/240VAC
1.5 HP (5 A) @ 440/480VAC