Drayton LP20RF Radio Frequency-Controlled RoomThermostat
Technical Data
| Digistat+RF Transmitter Thermostat | LP20RF Receiver | |
| Power supply | 2xAA 1.5V alkaline batteries | 24Vd.c. less than 65mA |
| Radio frequency | 433 MHz | 433 MHz |
| Radio signal range | 30m typically. The range may be affected by the composition / density and number of walls between the Digistat+RF and LP20RF. | |
| Temperature setting range | 5°C to 30°C | |
| Control Accuracy | + 0.5°C @ 20°C | Better than ±1 second per day @ 25°C |
| Ambient Temperature (Operating) | 0°C to 50°C | 0°C to 50°C |
| Ambient Temperature (Storage) | –20°C to 55°C | — |
| Humidity operating range | — | 30 – 95 % non-condensing up to 45°C |
| Mounting | Suitable for surface mounting | |
| Wiring | No wiring required | |
| Class of protection / Degree of protection | IP30 | IP24 |
| Battery back up time & date | 10 years min. | 10 years min. |
| Shortest switching period | 1 minute | 1 minute |
| Energy Class | IV = 2% (Acc. EU 811/2013, 812/2013, 813/2013, 814/2013) | |
| Pollution Class | 2 | 2 |
| Software Class | A | A |
| Ball pressure test | 90°C | 90°C |
Relevant EC Directives:
- 2006/95/EC Low Voltage Directive
- 2004/108/EC Electromagnetic Compatibility Directive
- 1999/5/EC R&TTE Directive
- 2006/66/EC Battery Directive
- 2011/65/EU RoHS Directive
Applied Standards:
- EN60730-1; EN60730-2-7; EN60730-2-9
- EN 300 220-2; EN 301 489-3
Pack Contents:
- LP20RF Programmer / RF receiver
- Digistat+RF transmitter
- Screws (x2)
- Wall Plugs (x2)
- Instructions
- Batteries (x2) AA Alkaline
Installation Guide
DANGER:
230 volts do not touch the electrical components or circuits.
CAUTION:
Isolate the mains electricity supply before starting any work and observe all relevant safety precautions. Observe electro-static discharge precautions: do not touch the pcb circuit.
NOTE:
This accessory must be fitted by a competent person.
Failure to comply could lead to prosecution.
- Remove the boiler outer casing and control panel fascia to gain access to the boiler control panel.
- Release the securing screws.
- Pull the cover panel up to remove.
- Grip the tab and pull upwards to disengage clips, pull forward to remove blanking plate or existing programmer.
- Align the connector plug pins into socket on the PCB and push fully home.
- Feed the ribbon cable into the recess.
- Align the programmer and locate the clips, push into the slots then down to secure.
- Locate the cover panel in place and secure with the screw.
- Replace fascia cover and outer casing before switching on the electrical supply and boiler.
- Switch boiler on when completed.
Wireless Commissioning & Signal Strength
Before fixing the Digistat+RF to the wall it is recommended to first check the signal strength from that location. To do this, after initial start up, the colon, CH and antenna symbols should be flashing on the LP20RF display.
- Press the set? button 4 times.
- Press the OK button once.
- Press the set? button 4 times; Lrn and OFF should be displayed.
- Press the + button so the display shows ON and a flashing antenna symbol. The learn mode is now ready to receive a signal from the transmitter during the next two minutes.
- Take the Digistat+RF unit and stand near the boiler.
- Remove the battery cover and fit the batteries.
- The symbols on the receiver will stop flashing and the display will show ‘SSI, Antenna and ON’.
- Press ‘SET’ on the receiver and the display will show ‘SSI and Antenna’.
- After a few seconds the display will show ‘- – -’.Remove the batteries from the Digistat+RF, press and hold the ‘set’ button whilst refitting the batteries, keep the ‘set’ button held and after a few seconds the display will show ‘rF’ which indicates that the Digistat+RF is continuously sending a signal to the LP20RF (receiver).
The receiver display will now show the ‘learnt’ transmitter code and the antenna’ as well as the signal strength as indicated by the chevrons on the right hand side of the display. - Place the transmitter in the desired final position and return to the boiler to check the receiver display. The ideal transmitter position will result in the receiver display showing 4 chevrons and the LED will be green.
- If the LED is red or no LED is showing and the display indicates 1 or 2 chevrons, the transmitter will need to be re-positioned until the LED changes to amber or green and 3 or 4 chevrons are indicated on the display.
NOTE:
If there is no LED and the display shows ‘- – -’, there is no signal being received at all from the transmitter. Transmission will resume once the transmitter is repositioned in a part of the house where an amber or green LED and 3 or 4 chevrons are achieved. - Once you are happy that, when in the desired location, the transmitter is sending a good signal to the receiver i.e. amber or green and 3 or 4 chevrons, the transmitter can be fixed to the wall.
LED indicator shows different colour depending on signal strength (see table below)
LED Indication Chevrons RF Strength Green 4 Very strong Amber 3 Strong Red 2 Weak None 1 Very weak
Positioning the Digistat +RF room thermostat
The Digistat is a radio frequency device which is very flexible for positioning as there is no need for hard wiring to the appliance. The device should be mounted in an open area, no closer than 30cm from metal objects, including wall boxes. Mount the Digistat+RF on a wall which is not subject to direct sunlight or draughts, preferably on an inside wall, 1.5 metres above the floor. The Digistat+RF must also not be directly influenced by radiators or other appliances giving off heat.
Mounting the Digistat +RF room thermostat
- Loosen the single screw from the bottom of the transmitter using a small flat-bladed screwdriver.
- Carefully insert the screwdriver into the slot located at the back of the digistat near the top and very gently lever upwards a fraction to release the tab securing the front of the transmitter to the back cover. The back cover can now be secured to the wall.
- Replace the front by locating in position and pushing fully onto the back cover until the tab engages at the top of the transmitter.
- Retighten the screw at the bottom of the unit to fully secure the front to the back cover.
To cancel signal strength mode:
- Remove the batteries from the Digistat+RF transmitter to cancel the constant transmission.
- After a few seconds the receiver display will show ‘—’ .
- Press ‘OK’ on the LP20RF receiver and the display will return to the time with the ‘CH and Antenna’ flashing.
- Re-insert the batteries into the transmitter and the RF link will be re-established.
Signal Strength
To check signal strength on previously installed and paired units:
- Press the ‘set’ button 4 times on the LP20RF.
- Press ‘OK’ once.
- Press the ‘set’ button 5 times. The display will show ‘SSI and OFF’.
- Press the ‘+’ button so that the display shows ‘SSI, Antenna and ON’.
- Press the ‘set’ button so the display shows ‘SSI and Antenna’.
- After a few seconds the display will show ‘—’.
- Remove the batteries from the Digistat+RF transmitter and wait until the display has faded away.
- Press and hold the SET button on the transmitter while re-inserting the batteries and keep the button depressed until the display shows ‘rF’.
LED indicator shows different colour depending on signal strength (see table below)LED Indication Chevrons RF Strength Green 4 Very strong Amber 3 Strong Red 2 Weak None 1 Very weak
To cancel signal strength mode:
- Remove the batteries from the transmitter to cancel the constant transmission.
- After a few seconds the receiver display will show ‘—’ .
- Press ‘OK’ on the receiver display and the display will return to the time with the ‘CH and Antenna’ flashing.
- Re-insert the batteries into the transmitter and the RF link will be re-established.
REFERENCE:
Download Manual
Drayton LP20RF Radio frequency controlled room thermostat Installation Guide
OtherManuals
Drayton LP20RF Radio frequency controlled room thermostat User Guide
Drayton LP20RF Radio Frequency-Controlled RoomThermostat Installation Guide
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