APPLICATIONS
The T6590 range of digital thermostats is designed to control the valves, fan and auxiliary electric heater within fan-coil systems.
Modern, attractive styling and comprehensive feature set makes the T6590 suitable for a wide range of applications.
There are a total of 8 application configurations supported, and these are:
Application |
Description |
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0 |
2 pipe system, heating only |
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1 |
2 pipe system, cooling only |
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2 |
2 pipe system, 1 stage heat or 1 stage cool |
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3 |
2 pipe system, 1 stage heat or 1 stage cool, |
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auto changeover |
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4 |
4 pipe system 1 stage heat and 1 stage cool |
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5 |
4 pipe system 1 stage heat and 1 stage cool |
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auto changeover |
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6 |
2 pipe system, 1 stage heat or 1 stage cool |
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with auxiliary electric heater |
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7 |
4 pipe system, mixed manual and auto |
The different applications can be selected from the installer setup mode and by altering the external wiring connections
EN0H8579 R0 2009
T6590 Series
FAN-COIL CONTROLLER
PRODUCT DATA
FEATURES
•Large, easy to read LCD display with backlight
•Heat / Cool or standby mode displayed on LCD
•Lockable keypad
•Room setpoint adjustable via simple-to-use up/down buttons
•Fan speed ON/Off, low/med/high or auto
•Auto mode, fan speed is proportional to distance of room temperature from setpoint
•Manual or automatic heat / cool changeover
•Control of auxiliary electric heater
•Inbuilt or remote sensor (NTC20K) options available
•Simultaneous display of room temperature and user setpoint
•Push button adjustment of setpoint
•Switches allow manual control of system operation and fan speed
•Special energy savings mode activated by external input from Energy Management System (EMS) – a window contact or hotel card-key - overrides the temperature setting to installer defined heating and cooling temperatures
•Energy savings input (remote setback) can be configured to be normally open (NO) circuit or normally closed (NC) circuit
•All models have a proportional plus integral (P+I)
•T6590 meets all relevant requirements for CE approval
•Installer setup mode allowing operating parameters to be changed
•Installer set up settings retained in the event of a power loss
•Central remote setback for both cooling and heating operation
•Freeze protection
•Automatic setback to unoccupied mode with no key operation
•°C display
•0°C to 2°C Temperature display offset available
•Easy to use installer setup mode allows for simple thermostat setup
•Adjustable deadband for heat & cool sequence control
•Setpoint range 10°C to 32°C
•Installer test mode for on-site wiring checks
•Line voltage (230V~) models available
T6590 FAN-COIL THERMOSTAT
SPECIFICATIONS
Setpoint range
Supply voltage
Control Performance
Electrical ratings
Operational life
Mounting
Wiring
Energy Savings Input Enclosure Dimensions
Environmental requirements
Approvals
10...32oC
230 V~ (+10%, -15%), 50/60 Hz
P+I algorithm applied to ON/OFF control gives typical control to ±1.0°C at 22°C at 50% duty cycle, nominal control to ±1.0°C
Fan Motor: 230V~, 50…60Hz, 3.0A run, with inrush 6A
Valve Actuators: 230V~, 50…60Hz, 1.0A run, with inrush 3.5A
Greater than 100,000 cycles (all loads) for thermostat contacts at 230 V~
Mounts directly onto wall or wall-box - a standard 65x65mm junction box (hole pitch 60mm). Mounting screws supplied.
11 screw-in terminals per unit, capable of accepting either 2 wires up to 1.5 mm2 , or 1 x 2.5mm2 Voltage-free contact (rating 24Vdc), maximum contact resistance of 1000ohms
Plastic 3-piece housing
97 x 148 x 29 mm (h x w x d)
Operating temperature range 5 to 45ºC Shipping and storage temperature range -20 to 55ºC Humidity range 5 to 95% rh, non-condensing
CE mark, complying with standards EN60730-1 (2001), EN55014-1 (2007), EN55014-2 (1997). Product must be wired as shown for CE compliance.
T6590 APPLICATIONS
T6590A1000 – 2 Pipe Model
Application |
Description |
Changeover |
Fan speed |
Remote |
Pipe |
Remote |
Auxiliary |
Output |
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sensor |
sensor |
setback |
Heater |
type |
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0 |
2 pipe system, heating only |
No |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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Auto |
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1 |
2 pipe system, cooling only |
No |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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Auto |
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2 |
2 pipe system, 1 stage heat or 1 |
Manual |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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stage cool |
Auto |
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3 |
2 pipe system, 1 stage heat or 1 |
Seasonal |
On/Off, 3 speed or |
Y |
Y |
Y |
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On Off |
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stage cool, auto changeover |
Changeover |
Auto |
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2 pipe system, 1 stage heat or 1 |
Manual with |
On/Off, 3 speed or |
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stage cool with auxiliary electric |
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6 |
seasonal |
Y |
Y |
Y |
Y |
On Off |
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heater |
Auto |
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changeover |
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T6590B1000 – 4 Pipe Model
Application |
Description |
Changeover |
Fan speed |
Remote |
Pipe |
Remote |
Auxiliary |
Output |
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sensor |
sensor |
setback |
Heater |
type |
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0 |
2 pipe system, heating only |
No |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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Auto |
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1 |
2 pipe system, cooling only |
No |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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Auto |
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2 |
2 pipe system, 1 stage heat or 1 |
Manual |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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stage cool |
Auto |
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3 |
2 pipe system, 1 stage heat or 1 |
Seasonal |
On/Off, 3 speed or |
Y |
Y |
Y |
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On Off |
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stage cool, auto changeover |
Changeover |
Auto |
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4 |
4 pipe system 1 stage heat and 1 |
Manual |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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stage cool |
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Auto |
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5 |
4 pipe system 1 stage heat and 1 |
Auto |
On/Off, 3 speed or |
Y |
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Y |
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On Off |
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stage cool auto changeover |
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changeover |
Auto |
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2 pipe system, 1 stage heat or 1 |
Manual with |
On/Off, 3 speed or |
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stage cool with auxiliary electric |
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6 |
seasonal |
Y |
Y |
Y |
Y |
On Off |
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heater |
Auto |
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changeover |
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4 pipe system, mixed manual and |
Manual / |
On/Off, 3 speed or |
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7 |
auto |
Auto |
Y |
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Y |
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On Off |
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Auto |
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changeover |
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EN0H8579 R0 2009 |
2 |
T6590 FAN-COIL THERMOSTAT
INSTALLATION
Location
The T6590 Series thermostat is the temperature control element in the fan-coil or air-conditioning system, and must be located about 1.2 to 1.5m above the floor (according to local building regulations) in a position with good air circulation at room temperature. Do not mount it where it could be affected by :-
-draughts or dead spots behind doors or in corners
-hot or cold air from ducts
-radiant heat from the sun or appliances
-unheated (uncooled) areas such as an outside wall behind the thermostat
-concealed pipes or chimneys
1.Locate the wall-plate in the mounting position, insert the mounting screws through the appropriate holes, and screw into position.
2.Complete the wiring.
3.Attach the thermostat to the wall-plate as follows:
4.Locate the 4 side slots on the wall plate into the appropriate slots on the back of the thermostat.
5.Press down firmly and snap the thermostat into place.
6.Tighten retaining screw in lower edge of thermostat.
Wiring the thermostat
The standard wiring access is via a hole in the centre of the thermostat wall-plate.
Removing the thermostat from the wall
If it becomes necessary to remove the thermostat from the wall-plate:
1.Isolate the power supply before removing the thermostat.
2.Loosen the retaining screw in the lower edge of the thermostat.
3.Pry the lower edge of the thermostat away from the wallplate.
4.Use both hands to pull the thermostat straight away from the wall-plate.
5.NOTE - Incorrect removal of the thermostat from the wall-plate may damage the device.
Mounting the thermostat
Any T6590 Series thermostat can be directly mounted on the wall or horizontally on either a 65x65mm standard junction box or a 2x4inch US junction box. Mounting screws are supplied for both alternatives.
IMPORTANT
The installer must be a trained service engineer Isolate the power supply before beginning installation
3
EN0H8579 R0 2009
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