Related Manuals for Danfoss CET B-RF
Summary of Contents for Danfoss CET B-RF
- Page 1 CET B-RF Wireless Electronic Hot Water Cylinder Thermostat User & Installation Instructions Certification Mark For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
- Page 2 Installation 3-10 Product overview Specifi cation Thermostat installation Sensor wiring Receiver installation Receiver wiring Schematics 11-14 Hard wired heating, 3-port Wireless heating, 2 x 2-port Hard wired heating, 2 x 2-port Wireless heating, 3-port Commissioning 15-17 User Instructions 18-21 What is a cylinder thermostat? 18-19 Setting the temperature Display...
-
Page 3: Installation
Installation Instructions Product overview The CET B-RF is a battery powered cylinder thermostat which measures cylinder temperature using a strap-on temperature sensor. The sensor is fi tted to the cylinder wall and wired to the thermostat, which is normally located adjacent to the cylinder. -
Page 4: Specifi Cation
Specifi cation Product specifi cation (Thermostat) Power supply : 2 x AA/LR6/MN1500 alkaline batteries Transmitter frequency: 433.92MHz Transmitter range: 30 metres line of sight Temperature range: 40 - 65°C Max. temp of thermostat: 45°C Design standard: EN60730-2-9 (EN300220 for RF) Dimensions, mm: 85 wide x 86 high x 42 deep Control pollution:... - Page 5 Installation - Thermostat This product should only be installed by a qualifi ed electrician or competent heating installer and should be in accordance with the current edition of the IEEE wiring regulations. 1. The clamp on sensor should mounted onto cylinder wall at a height equivalent to ½...
- Page 6 2. Before attaching the sensor to the cylinder using the strap provided, connect a 2-core cable to the sensor to allow interconnection to the thermostat setting unit. 3. Apply the contact paste provided to the part of the sensor in contact with the cylinder and clamp the sensor to the cylinder wall.
- Page 7 For insulation thicker than 25mm and up to 55mm thick, use the extra cover supplied as a spacer to ensure that the sensor is held in firm contact with the cylinder wall. For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
-
Page 8: Sensor Wiring
Sensor Wiring sensor Cable specifi cation: minimum cross section 0.5mm For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk... - Page 9 Installation - RX Receiver unit 1. Mount the RX wallplate onto the wall - cable access must be from behind or below the wallplate. Typical wiring diagrams, showing the interconnection between time controls and zone valves, are shown on pages 11-14. NOTE: Earth connections are for customer use only.
-
Page 10: Receiver Wiring
Receiver Wiring (RF only) ELECTRONICS 1 2 3 4 ZONE ZONE 1 ON 1 OFF RX2C ELECTRONICS A B C 1 2 3 4 5 6 ZONE 1 ZONE 1 ZONE 1 ZONE 2 ZONE 2 ZONE 2 ZONE 1 Note 1) For mains voltage operated systems link terminal 2 to mains live supply. - Page 11 Hard Wired Heating with Wireless Hot Water Control, 3 Port Mid-Position Valve For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
- Page 12 Wireless Heating and Hot Water Control, using 2 x 2 Port Valves For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
- Page 13 Hard Wired Heating with Wireless Hot Water Control, 2 x 2 Port Valves For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
- Page 14 Wireless Heating & Hot Water Control, with 3 Port Mid Position Valve RX2C Receiver - channel 1 paired to heating FP715 Programmer channel 2 paired to CETB-RF HW OFF HTG OFF HW ON HTG ON Boiler/Pump 3 Port Mid-position Valve For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
-
Page 15: Commissioning
Ensure that the power to the RX1 is turned on and that the programmer is calling. Step 2 CET B-RF Turn the thermostat dial so the widest end of the setting ET B-RF line is lined up with the LCD display (see opposite). - Page 16 RX2C For RX2C repeat steps 2 and 3 for channel 2 Step 5 CET B-RF Replace the thermostat dial, ensuring the widest end of the setting line is lined up with the LCD display. For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
- Page 17 Test the controls in the normal way to ensure that boiler, pump and associated control valve(s) operate in the correct sequence. Having tested the controls, the thermostat should be set to the required temperature. This can be read directly from the LCD display as the setting knob is moved.
- Page 18 What is a cylinder thermostat? ... an explanation for householders A cylinder thermostat switches on and off the heat supply from the boiler to the hot-water cylinder. It works by sensing the temperature of the water inside the cylinder, switching on the water heating when the temperature falls below the thermostat setting, and switching it off once this set temperature has been reached.
- Page 19 size of boiler and the heat exchanger inside the cylinder. The water heating will not work if a time switch or programmer has switched it off . And the cylinder thermostat will not always switch the boiler off , because the boiler sometimes needs to heat the radiators.
-
Page 20: User Instructions
User Instructions Setting the temperature To alter the temperature that the thermostat controls at, simply turn the setting dial on the thermostat. As the setting dial is moved the small LCD display will show the selected temperature. Please Note: In order to reduce the risk of Legionella infection, it is recommended that water be stored at not less than 60°C. -
Page 21: Display
A small fl ame icon is lit in the display whenever the thermostat is calling for heat. Please note that the boiler will only run when both the thermostat and the time control are calling Battery replacement Batteries will last in excess of two years. When batteries need to be changed a battery icon will fl ash in the display. -
Page 22: Display
For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk... - Page 23 For a large print version of these instructions please contact the Marketing Services Department on 0845 121 7400. For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...
- Page 24 Visit our website: www.danfoss-randall.co.uk Email our technical department: drl_technical@danfoss.com Call our technical department 0845 121 7505 (8.45-5.15 Mon-Thurs, 8.45-4.45 Fri) Danfoss Randall Ltd Ampthill Road Bedford MK42 9ER Tel: 01234 364621 Fax: 01234 219705 Part No 25322v07 07/07 For latest prices and delivery to your door visit MyTub Ltd - 0845 303 8383 - www.mytub.co.uk - info@mytub.co.uk...