OPERATING INSTRUCTIONS ARE ON PAGE 5. SECTION 2 Technical Data Transmitter Unit. RVHT 2 MULTI-FIT Programmable R/F Thermostat-Pair SECTION 1

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1 OPERATING INSTRUCTIONS ARE ON PAGE 5 RVHT 2 MULTI-FIT Programmable R/F Thermostat-Pair SECTION 1 This Programmable Ravenheat R/F controlled room Thermostat RVHT 2, consists of 2 items: a Mobile Transmitter and a Receiver unit which is designed with panel-mounting to fit in the most popular boiler control panels or other commercially available applications. Installation requires no wiring between Transmitter & Receiver and can be fitted in any normal operating environment within a 30 metre range between the two units. Ceilings, walls and partitions and different building materials will reduce the transmission range. There is a unique facility of R/F-address code setting built into both the Transmitter & Receiver to ensure that the R/F signal transmission will not be interfered with by any other nearby R/F signal. There is a blue-back-light and the soft-keys on the Transmitter are made of translucent rubber allowing the Red LED to project through it to provide easy operating in dim light surroundings. There are 3 working frequencies available. The Working frequency is marked on the top right of the housing on both Transmitter and the Receiver. The marked frequency on both units must be set the same, or this thermostat pair will not operate. SECTION 2 Technical Data Transmitter Unit 1. Power Supply: 1.5V AAA Battery*4pcs (2 pieces each for Thermostat s power supply and Blue-backlight and red LED (auto). 2. Battery life: 1 year typical. LO will appear on the LCD when batteries require replacing. 3. Temperature reading: C only 4. Clock format: 24H (military) only 5. Temperature Sampling Rate: 1 Min. 6. Switching Differential: 0.5 C 7. Temperature control range: 5~35 C 8. Temperature display range: 0~50 C 9. Temperature setting: 1.0 C / step 10. Programming feature: Two temperature setting, Comfort ( ) & Economy ( ) on the transmitter unit, the 7 days of week can be programmed separately. Splitting 24 hours into 48 programming zones. 11. Non volatile EEPROM ensure no program/setting loss. 12. Temperature sensor: NTC 10K O at 25 C 13.3 Working frequencies: a.t433: MHz b.t868: MHz c.t915: 915 MHz (Preset at factory, not selectable by user) 14. Working distance: 30 metres 15. R/F signal transmission cycle: transmits 3 times in every cycle of 2.5 minutes. 16. Manually turn ON/OFF thermostat-pair s operating ( ). 17. Dimensions: W x 104 H x 21.5 D mm Fig 1A Fig 2 Receiver Unit The Ravenheat transmitter unit is powered by 4 x AAA Alkaline, batteries, 2 to power the thermostat, 2 to power the Blue-backlight & Red-LED, the Receiver unit is connected to the main electrical circuit through boiler wiring. 1. Operating power: 230Vac 50/60Hz 2. Powerconsumption5VA 3. Output rating:16amp/250vac resistive, Volt-free 4. Storage temperature: -10 C ~ 60 C 5. Working frequency : a mhz b mhz c- 915Mhz 6. Working distance : 30 metres 7. Temperature sensor: NTC 10 KO at 25 C 8. 8.Installation : Panel-mount Dimensions : 60 W x 60 H x 32.5 D mm A switch ( ) is located on the front panel to enable users to manually turn the unit ON or OFF (After pressing this switch, the Transmitter-unit will also send a R/F signal to shut off the Receiver-unit s operation). FIG 3A 1.

2 SECTION 3 GENERAL INFORMATION & INSTALLATION Transmitter Unit SECTION 4 Choosing correct location for the thermostat pair Slide-selector to choose the required day of week for programming or set to run. Fig 4. Increase or Decrease Clock Setting Battery Compartment Select Comfort & Economy zones Receiver Unit Permanent hold temperature at required set point. Manual ON/OFF for Thermostat operation. Heating ON/OFF indicator blue LED is lit when on. Fig 5A Heating ON/OFF indicator (blue LED lit when on) The Ravenheat transmitter should be wall mounted. The mounting height of Transmitter-unit should be approximately 1.5 metres above the floor. The Receiver-unit can be fitted to most commercially available recessed conduit boxes or, directly on the wall in the wall mounting receiver unit provided within this kit. Transmitter unit & Receiver unit should be positioned as close as possible to each other maximum distance apart: 30 metres however, different building materials, ceilings, walls and partitions WILL reduce the transmitter range. f R/F failed Red LED constantly lit. Heating will be shut off after 10 minutes if R/F transmission fails. To wall mount Ravenheat transmitter unit (Flat head screw-driver required as assisting tool) Manual mode heating start-up If R/F has failed, press this button to resume heating operation. After R/F communications has resumed, temperature will be controlled by Transmitter unit again. Open the assembly unit as documented below. Fix back plate of the unit to the wall. Before re-assembling (see Section 6) reference setting unique address code. To open To re-assemble Fitting or Replacing batteries in Transmitter Unit Fig. 6 Low Battery warning If LO is displayed, replace batteries. Fig Insert screw-driver in the position as shown. 1. Placing the hookon closure at position as shown. Flip to open the flap on front plastic housing. Upper compartment 2 x 1.5V AAA for powering transmitter Lower compartment, 2 x 1.5V AAA for backlight 2. Tilting downward to loosen the hook-on closure. 3. Open as shown. 2. Press to firmly close. Ensuring the back plate fits within the unit and the securing clip engages correctly. Flip to F 2.

3 SECTION 5 RF Address Code Setting Receiver R/F code setting dip switch in Receiver unit is situated Underneath the cap, open it to adjust settings as set out in Section 6. Fig 9A SECTION 6 RF Address Code Setting IMPORTANT If there is another user nearby e.g. in the next house who has the same unit, your receiver may be fault triggered by their Transmitter. Therefore it is recommended that the factory set RF code between the Transmitter and Receiver be re-set by a unique address code, to prevent any unwanted interference. Setting new unique RF Address Code Open the transmitter unit (see Section 4) Open the Receiver unit (see Section 5) Fig. 9B Dip switches shown in Fig 8 and Fig 9c are the same settings. Move the dip switches up or down into any configuration providing the dip switches in both transmitter and receiver correspond, to give unique code. Fig. 8 Transmitter Rear view Fig. 9 Position both Transmitter and Receiver DIPswitches with the same configuration arrangement Factory settings all dip switches on number settings as shown in Fig 8 and Fig 9c. Receiver Front view Fig. 9C Receiver Front view 3.

4 SECTION 7 APPLICATION Contents in Package 1. Transmitter unit x 1 unit 2. Instruction sheet x 1 set 3. Alkaline AAA x 4 pieces 4. Self-tapping screw 4.6 x mm x 2pieces 5. Plastic anchor o9mm x 25 mm x 2 pieces 6. Receiver Unit x 1 unit RVHT Transmitter Important Note (by FCC, for application of 915 MHz) 1. The changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment. 2. To comply with the FCC RF exposure compliance requirements, no change to the antenna or the device could result in the device exceeding the RF exposure requirements and void user s authority to operate the device. 3. This device complies with Part 15 of FCC Rules. Operation is subject to the following two conditions (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. SECTION 8 Fitting RVHT 2 into boiler Wiring connections of RVHT 2 to Ravenheat combination Boiler. Refer to boiler manual. When fixing the RVHT 2 receiver, consult the boiler manufacturer s instructions on procedures of installing and wiring. Wiring Diagram Top COLOUR KEY Bl blue Br Brown Or Orange Bottom Front View Rear View 4.

5 SECTION 9 PROGRAMMING INSTRUCTIONS FOR USER The on/off switch( )is located on the front panel. If the thermostat is turned off then off is displayed on the LCD. To turn the thermostat on press display the main display screen. SETTING TIME AND DAY 1. Slide the pointer to RUN 2. Press ( ) to enter clock setting (the day of the week will begin to flash) and the LCD will Factory settings The programmer comes with a factory set standard programme. This is: = 21 C = 16 C Mon Fri: at 16 C Sat Sun: at 21 C at 16 C at 16 C at 21 C at 21 C at 16 C at 16 C at 21 C at 16 C 3. Press (/\) or (\/) to set the current day of the week. 4. Press ( ) again to enter the setting of the hour of the day. Mon Fri 5. Press (/\) or (\/) to set. 6.Repeat the procedure of pressing ( ) and press (/\) or (\/) to complete setting of minute. 7.After 5 seconds, the transmitter unit will automatically retain the clock settings and start to operate. START PROGRAMME. This thermostat commands the heating system to operate with two temperature settings only: (Maximum temperature): required room temperature during heating hours. (Minimum temperature): lowest required temperature overnight or whilst the property is unoccupied. A: TO Adjust (Maximum temperature) and (Minimum temperature) 1. The selector point must remain on RUN for it to operate. B: Setting your own programme. Sat, Sun Programming the and temperature for each independent time scale: Each of the 7 days are split into 30 minute independent programming zones. Users can select the length of programme by own preference, in 30 minute intervals with the ( ) and ( ) temperature settings. To set each individual day. 1. Slide the selector point to the day of the week to be programmed. 1 Monday, 2 Tuesday, 3 Wednesday, 4 Thursday, 5 Friday, 6 Saturday, 7 Sunday. 2. Display example. The LCD will show: 2.Press to view the current maximum setting. 3.Press again, the LCD display begins flashing. 3. Press (/\) or (\/) to adjust to the required temperature. 4. Wait 5 seconds after adjustment and the thermostat will memorise this setting and return to the main display. The and symbols at the top and bottom of the display depict the programming of the and temperatures for the selected day (24hrs). 5. Repeat the process to set the ( ) minimum temperature. 3.Press or to alter setting between and on LCD. (starting at 0.00hrs through to 23.30hrs.) 4. Alternatively press (/\) or (\/) to select through each individual time scale, when on the time you desire press the 5

6 or to set that point. *the LCD will now indicate the time in a digital number and flashing /. 5.Repeat steps 1 to 4 for all 7 days of the week. 6.After setting all 7 days move the slider switch back to RUN. The thermostat will start to operate on the programming which has been set. Turning the thermostat off. To turn the thermostat off when heating is not required, press, and off will be displayed. To resume heating press and the thermostat will revert back to your programmed settings. Temporary override In this mode the programmed temperatures can be override till the next program and then the thermostat will revert back to its original setting. 1. Ensure the slider is in the run position. 2. Press (/\) or (\/), the LCD will display the current or temperature settings. To set constant In this mode the thermostat works as a basic room stat, keeping the room permanently at the temperature you desire until is taken back out of hold mode. 1. Ensure the slider is in the run position. HOLD 2. Press to enter this permanent override mode. The LCD will display temp set hold 3. Press (/\) or (\/) to set desired temperature. 4. The LCD will flash for approximately 5 seconds after adjusting the temperature. Then the display will revert back to the current ambient temperature in the room and say hold. This now will permanently keep the room at the set temperature. HOLD 5. To cancel the override, press and the thermostat will resume its programmed settings for the 7 days. 3. Press (/\) or (\/) again to set required temperature. 4. The LCD will flash for approximately 5 seconds, after which will return to the main display and say manual in the bottom right. If the manual function is selected at the section of thermostat will remain in manual until the next or vice versa., the section, You will see that when in manual mode the or will disappear from the display for the section of time the thermostat will remain in that mode. 5. To cancel manual mode, slide selector away from run and then back to run and the thermostat will resume its programmed settings. 6

7 SECTION 10 Frequently Asked Questions RECEIVER Question No lights on unit Blue light on, system on. Red light flashes. Red light on. Heating system operates when no demand from the transmitter or vice versa. Answer Unit not requiring heat. No power to unit, check supply. Receiver/ transmitter frequencies different. Unit operating correctly, heating demand is on. Unit operating correctly. Normal communication between transmitter and receiver. Communication failed unit too far from transmitter obstructions causing poor range. Possible interference from another unit (see section 6) RF address code. TRANSMITTER Question Answer Display blank No batteries in unit. Fit batteries batteries exhausted. Display shows no temperature. Slide switch, not returned to Run No blue back light/ red LED keys. No batteries in lower section of battery compartment. Time incorrect. Time not set or unit not set to Run. Heating does not come on (no flame displayed) Set temperature is below room temperature or set temperature for programmed zone has been achieved. Unit is set to off (if off displayed. Heating on (flame displayed) Set temperature higher than room temperature unit in cold area not sensing room temperature Display shows Hold Hold button pressed (permanent override). Press hold button to revert back to programmed settings. Display shows Manual and some programme zones blank. Temperature keys /\ or \/ been pressed changing set temperature above or below target temperature. Reset to programme setting, move slider away from Run, then back to Run. Temperature does not change with /\ or \/ keys. Press the bottom of the /\ or \/ keys. /\ or \/ down keys change time on unit Unit not set to Run Display shows LO Batteries exhausted. Replace batteries. Display shows Err Unit not set to Run 7