User guide

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Fan coil digital control
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Fan-coil controller with large LCD display, and built in room sensor
For on/off P+I control of valves, fan and auxiliary electric heater. Eight applications selectable:
• 2 pipe system, heating only
• 2 pipe system, cooling only
• 2 pipe system, heating or cooling
• 2 pipe system, heating or cooling, auto changeover (water sensor required)
• 2 pipe system, heating or cooling with auxiliary electric heater (water sensor required)
• 4 pipe system, heating or cooling
• 4 pipe system, heating or cooling, auto changeover
• 4 pipe system, mixed manual and auto
Sensors
Fan coil controller with LCD display, T6590
Temp. setpoint range 10 ... 32
o
C
Input signal optional remote room sensor, water sensor, setback contact for
energy saving
Control output signal switches (230V 1A inrush 3A) on/off for heating- and cooling valve,
switches (230V 3A inrush 6A)for fan (3-speed) and heater
Power supply 230 Vac; 5 VA
Manual operation
functions
room setpoint; fan speed on/off, low/med/high or auto; heat/cool
change-over manual or auto
Display functions setpoint temperature, room temperature, mode of operation:
heat, cool or standby
Housing (HxWxD) 97 mm; 148 mm; 29 mm
Protection class IP30
Mounting directly on wall or wall-box
Terminal max. wire size 2,5 mm
2
Product literature
language
controller supplied with installation instructions in English, French,
Italian, Spanish
Additional description • Installer Set Up routine for application selection and parameter
settings
• parameter settings retained in event of power loss
• adjustable dead band for heat/cool sequence operation
• activity sensing: back to energy saving mode if no button is
pressed for a selected period of time
• freeze protection
• LCD display with bright backlight
• keypad lockout (total or partial)
Product description Type
Fan Coil controller, for 2-pipe systems only T6590A1000
Fan Coil controller, for 2-pipe or 4-pipe systems T6590B1000
Room temperature sensor NTC20k
RF20
Strap-on water temperature sensor NTC20k
T7414C1012
Pipe thermostat to allow automatic heat/cool changeover
L641B1004