Fan Coil Unit Control Orchid 3 TF428DN
Description
Fan Coil Unit Control resideo Orchid 3 TF428DN
Orchid 3 TF428WN fan coil thermostat for 4-pipe fan coil units.
Dose-mounted electronic thermostat for automatic fan speed control and electrically operated on / off valve control in 4-pipe fan coil systems or small air conditioners.
Composed of 2 parts: thermostat and relay box.
compact design with large display and lighting
P + I control (number of cycles per hour adjustable) with on / off actuation signal
display information: standby time, economy mode, keypad locked, frost protection, ambient temperature (thermometer) or setpoint, fan speed, operating mode, valve actuation status
automatic or manual fan speed control - digital input for activating the economy mode from open window contact, card, or centralized external contact
"installer settings" mode that allows you to adjust the parameters to suit the application
economical temperature for both summer and winter operating modes (temperature rises or falls).
memory off time function for automatic shutdown.
Technical data:
Control keys: on / off; possibility to set the operation of 0 ... 12 hours
operating mode switch (Comfort, Eco, Ventilation, anti-freeze), temperature adjustment - fan speeds (auto / 1/2/3 / off)
4-pipe control system type: - cooling and heating with manual switching from the keyboard - cooling and heating with automatic switching and adjustable dead band
Proportional band: 1 ... 3 grdC adjustable, only in 4-pipe mode
Configurable parameters: 19, in installer mode.
Digital inputs: remote / card / contact window activation.
Digital outputs: 3 for fan speed control - 1 for servomotor / thermal actuator (model TF228 only) - 2 for actuators / thermal actuators (models TF428 only).
Switching capacity: digital fan outputs 4 (2) A / 230 Vac, - servomotor outputs for valves 2 (1) A / 230 Vac.
Supply voltage: 230 Vac. Protection: type IP20, class II. Adjustment range: + 10… + 32 grdC, display in the range + 10… + 37 grdC.
Dimensions: thermostat 88x88x14.5 mm; standard dose mounting relay box
Orchid 3: white or black polycarbonate interface, square design
Accessories: valves and thermoelectric actuators on / off.
NOTE: models available with remote external sensor input or piping, excludes digital input for eco mode, identical price
Manufacturer: Resideo - Honeywell Home.
