Application and diagram | |
|---|---|
2-pipe fan coil unit | 4-pipe fan coil unit |
|
|
2-pipe fan coil unit with electric heater | |
| |
YH Heating valve actuator | YHC Heating/cooling valve actuator |
|
M1 1-speed or 3-speed fan | YC Cooling valve actuator |
|
YE Electric heater |
B2 Changeover sensor (optional) |