Fan Coil Unit Thermostat Wiring Diagram

Hl series c horizontal low profile fan coil unit.

Fan coil unit thermostat wiring diagram.

The common wire sometimes referred to as the c wire is what s responsible for delivering constant power to your thermostat. For programmable thermostats and smart thermostats c wires are essential for setting a schedule or having your heat or air conditioner turn on at a desired temperature while some units can run without a c wire even brands like nest recommend having one for optimal. Fan coil unit fcu fan motor control. Fan coil relay board fcrb installation operation and maintenance.

Thermostat wireless control unit specifications srw series wireless fan coil control unit is constituted with a thermostat remote and a receiver combined with valve actuator or not. I have further analyzed the wiring between the fan coil units and thermostats and it definitely looks like temporary stuff. This additional terminal is labeled g in the thermostat. Hl series d horizontal low profile fan coil unit.

On a further call for cooling the thermostat signals for the fan to speed up from its. Thermostat or connecting by p18 to p15 p18 to p16 or p18 to p17. In the most basic system this functionality is provided by use of a fan center relay and the low voltage wiring to the thermostat now will require a minimum of three wires for heat only units and four wires for heat cool fan for control. Power supply power consumption output for fan thermostat.

A the fan coil unit is controlled by a unit mounted controller provided by mechanical systems controls contractor mscc. 3vdc 2 x aaa batteries 110vac 2 120vac 3 220vac 4 230vac 5 240vac 6 50 60hz. If fan speeds are adjustable the relay. Example wiring diagrams typical 24vac control drawing.

I am especially concerned about possible confusion between the fancoil s c terminal fancoil to water control valve and y terminal thermostat to fancoil for water control valve. V series and frbii wiring diagrams tec3000 to tec3000 color cross reference. T series invensys erie t155 data and instructions. See more ideas about fan motor diagram thermostat wiring.