Fan Coil Thermostat Wiring Diagram

Example wiring diagrams typical 24vac control drawing. 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. If you check the honeywell thermostat ct31a1003 wiring diagram you ll see that it requires only two wires.

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Add a jumper wire from y or y1 to g on the furnace board or fan coil wiring to allow the blower to turn on during cooling operation.

Fan coil thermostat wiring diagram.

B on a call for cooling the thermostat signals for the heating control valve to modulate toward the closed position. Page 7 tb6575 tb8575 suitepro digital fan coil thermostats thermostat wiring diagrams l hot the figures in this section illustrate typical wiring for. I have further analyzed the wiring between the fan coil units and thermostats and it definitely looks like temporary stuff. Equipment applications with 4 wires running to the thermostat r w y g and carrier fan coils.

Thermostats vary in the features they offer and there are also differences when it comes to wiring one to control your home s heating and cooling system. Use the g wire for the c wire at the equipment 2. Fan coil relay board fcrb installation operation and maintenance. On a further call for cooling the thermostat signals for the fan to speed up from its.

A the fan coil unit is controlled by a unit mounted controller provided by mechanical systems controls contractor mscc. Valve tb6575a1000 tb6575b1000 and tb6575c1000 fan coil thermostats which are 120 240 277 vac powered. 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. This additional terminal is labeled g in the thermostat.

This is because it s a very basic thermostat designed only to control a heating system. Sep 13 2019 explore julian gonzalez s board century condenser fan motor wiring diagram on pinterest. Page 7 tb6575 tb8575 digital fan coil thermostats thermostat wiring diagrams the figures in this section illustrate typical wiring for. See more ideas about fan motor diagram thermostat wiring.

L hot tb6575a1000 and tb6575b1000 fan coil thermostats valve which are 120 240 vac powered. 13 beginning on page 7. 13 beginning on page 7. Thermostat or connecting by p18 to p15 p18 to p16 or p18 to p17.

Fan coil unit fcu fan motor control. If fan speeds are adjustable the relay.

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