Worcester Greenstar Sense I Installation And Operation Manual Download Page 6

6

Product details

6 720 648 748 (2014/03)

2.2

Technical specifications

2.3

Function as room temperature-dependent controller

The Sense I monitors the room temperature and controls the flow temperature from 
the heat source to deliver the required room temperature. Must be used with a 
compatible time control.

Load Compensation

: The heat output of the heat source changes according to the 

deviation between the current and required room temperature. This method of 
control is suitable for buildings with one temperature level, e. g. open-plan living 
area. There are fewer burner starts and shorter pump runtimes thus increasing 
efficiency and reducing fuel consumption. Depending on the connected heat source, 
this control mode might possibly be not available.

Flow temperature control

: The flow temperature changes according to the 

deviation between the current and required room temperature. This method of 
control is suitable for major load fluctuations and is suitable for buildings with 
different temperature zones. The precision of control is higher and the flow 
temperature is limited. This saves fuel.

The pump run times can be reduced with the optimised pump run.

2.4

Function as zone controller

The Sense I can be used as a controller for a maximum of 4 heating circuits without a 
higher-level control, in combination with a wiring module (for further information 
refer to the technical documentation of the wiring module). For additional time 

Technical data

Measurements (W  × H  × D)

82  × 82  × 23 mm

Rated voltage

10  – 24 V DC

Rated current

4 mA

BUS interface

EMS/EMS 2 (2-wire BUS)

Control range

5  – 30 °C

Permiss. ambient temperature

0  – 60 °C

IP rating

III

Protection class

IP20

Summary of Contents for Greenstar Sense I

Page 1: ...UK IE Installation and Operation Manual Operating unit Greenstar Sense I 6 720 648 748 00 1O Intelligent Wired Room Thermostat 6 720 648 748 2014 03...

Page 2: ...ical specifications 6 2 3 Function as room temperature dependent controller 6 2 4 Function as zone controller 6 2 5 Function as an intelligent room thermostat 7 3 Old electrical and electronic applian...

Page 3: ...instructions Do not connect the Sense I to the 230 V mains BeforeinstallingtheSense I electricallyisolatetheheatsourceandallotherBUS units from the power supply and secure against unintentional recon...

Page 4: ...vel controls For additional time control of the zones a Sense II can be used instead of a Sense I combination of 1 Sense II and a maximum of 2 Sense I with a wiring module Room thermostat in systems w...

Page 5: ...n of packages of combination heater 1 2 2 Contribution to seasonal space heating energy efficiency in Sense I Load Compensation Modulating room thermostat for use with odulating heaters Electronic roo...

Page 6: ...y be not available Flow temperature control The flow temperature changes according to the deviation between the current and required room temperature This method of control is suitable for major load...

Page 7: ...4 heating circuits with a dedicated Sense I room control on each without using a wiring module The time program is determined by the higher level control e g Sense II At the Sense I the required room...

Page 8: ...ired room temperature Press control knob to briefly show the required room temperature flashing Service display maintenance required further information Service guide Press the control knob to switch...

Page 9: ...t the required room temperature Press the control knob to apply the setting Switch off the heating system Result Turn the control knob anti clockwise to reduce the required room temperature until OFF...

Page 10: ...Fig 4 Installing wall base Electrical connection Power is supplied to the user interface via the BUS cable The polarity of the wires is irrelevant Maintain a minimum clearance 100 mm between each of t...

Page 11: ...e cables min clearance 100 mm If more than 2 Sense I are going to be installed a wiring module may be required dependent upon the heat source Iftheconductorcross sectionsaredifferent usethejunctionbox...

Page 12: ...ure is displayed and Sense I works as a zone controller Room controller systems with one heating circuit Switch system ON reset Sense I The Display shows 3 dashes until the connection to the boiler is...

Page 13: ...rfloor heating system and low operating temperature E 1 3 0 0 0 3 0 If the room temperature displayed by the Sense I is wrong correct the deviation up to 3 C3 3 Temporarily place an appropriate thermo...

Page 14: ...ing circuit allocation Operation The following tables contain examples of how to change a value in the service menu Opening the service menu Result Press and hold control knob until two dashes appear...

Page 15: ...Remedy The required room temperature has not been achieved Airlock Bleed radiators and vent the heating system Time program for the heating circuit Adjust time program on the higher level control e g...

Page 16: ...ne controller If no higher level control and only one heating circuit is installed set A 1 CO controller A22 A24 1001 BUS signal from the higher level control for remote heating control is missing A22...

Page 17: ...1 3091 heating circuit 1 A64 3094 heating circuit 4 Replace faulty Sense I Fill The operating pressure of the heating system is too low Top up the heating water no installer needed please refer to the...

Page 18: ...18 6 720 648 748 2014 03 Notes...

Page 19: ...19 6 720 648 748 2014 03...

Page 20: ...59 Worcester Bosch Group is a brand name of Bosch Thermotechnology Ltd worcester bosch co uk 6 720 648 748 WORCESTER BOSCH GROUP TECHNICAL SUPPORT 0330 123 3366 APPOINTMENTS 0330 123 9339 SPARES 0330...

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