User manual DANFOSS RX2

[. . . ] To convert it to 24 hour operation move the switches 2 and 3 on the back of the unit to the 24 HR position. To operate in the linked GRAVITY condition, for instance in a system having gravity primaries with no control of gravity circuit flow, move switch 1 to the GRAVITY position. Locate the module on the two locating lugs on the top of the wallplate and hinge downwards to fully engage the fixing screws in the slots at the bottom of the module. If the unit is disconnected from the mains supply, either intentionally or due to a power-cut, the life-long integral battery will retain both time-of-day, day, and the programmed times for fifteen days. [. . . ] The clock will restart at 12:00PM (MO), and all that need be done by the user is to set up the time-of-day, (and day-of-week if the unit is 5/2 day mode). Slacken the two screws at the underside of the module and ease the bottom of the module away from the wall to disengage from the wallplate. Lift the module off the two locating lugs on the top of the wallplate. Wall or Plaster box fitting N& looping terminals Clearance for screwdriver access Surface fixed cable bottom entry knockouts Rear entry cable access Mains Supply Via 3A Fuse HW CH HW ON CH ON Remote Sensor OFF OFF N L 1 2 3 4 5 6 1 Typical Wiring Diagrams Given below are typical wiring diagrams for various types of systems, and whilst every attempt has been made to ensure the accuracy of this information it is recommended that the specific information relating to the ancillary controls is obtained from the manufacturers concerned. NOTES: The TP9 does not have voltage free contacts, therefore it is NOT suitable for connection to low voltage equipment. Remote Sensor to be wired with 1mm 2 core double insulated cable only. TP9 (Switch 1 to GRAVITY) Terminals HW CH HW CH OFF OFF ON ON Typical fully pumped system. TP9 (Switch 1 to GRAVITY) Terminals HW CH HW CH OFF OFF ON ON Typical Gravity D. H. W. TP9 (Switch 1 to PUMPED) Terminals HW CH HW CH OFF OFF ON ON NL123456 Mains Supply NL123456 Mains Supply NL123456 Mains Supply { N L 3 amp fuse Remote Sensor { N L 3 amp fuse Cyl. Stat. Remote Sensor N N Looping Terminals N Looping Terminals Boiler N Pump N Looping Terminals Boiler & Pump N S. R. Z. V. in CH N S. R. Z. V in HW N Boiler N Pump N Other Danfoss Randall products suitable for use with the above control circuit:AT Cylinder Thermostat. HP22 or HP28 Motorised Zone Valve with Spring Return Actuator and SPST auxiliary switch. Other Danfoss Randall products suitable for use with the above control circuit:AT Cylinder Thermostat. While operating as 1 or 3 above, the +1HR ON button can be pressed at any time to heat the Hot Water for an extra hour. Hot Water Only Mode, (Central Heating will switch on if room temperature falls below 5°C. ) First-Time Installation When the unit is first removed from its packaging the display will, most probably, just show two dots (the colon). Once fitted in accordance with the Installation Instructions supplied and the mains electricity is switched on, the unit should be activated by pressing any button and then RESET. Reset Reset the unit by pressing and holding down the four buttons; TEMPERATURE up (s) and down (t), minus (-) and plus (+) all at the same time, for at least two seconds, until the display becomes completely blank. Release the buttons, and the unit will begin automatically with the display similar to Fig. 12:00PM with the colon blinking, 16°C, and the day (MO) shown if the unit is set for 5/2 day operation. Automatic Operation While the colon is blinking the clock is running and the unit will control your Central Heating (CH) and Domestic Hot Water (HW) in accordance with the set programme. The unit incorporates a Factory Pre-set Programme which is detailed in table 1 overleaf. Setting the Clock Checking and, if required, changing the Factory Pre-set Programme. To set the clock to the correct time and check the factory pre-set programme, or change it to suit your lifestyle, use the PROG, minus (-) and plus (+) buttons. Starting from the RUN mode (with the colon blinking); each press of the PROG buttons steps through the checking and setting sequence, which is listed in table 2 overleaf. This product complies with the following EC Directives: Electro-Magnetic Compatibility Directive. (LVD) (73\23\EEC), (93\68\EEC) Follow this sequence to check/change first the time-of-day, then the times and temperatures, and finally the hot water ON/OFF times. If you change any or all of the time and/or temperature settings, record the new ones on the space provided in table 1. You may reinstate the Factory pre-set times and temperatures at any time by performing a RESET as described earlier. 3 Table 1. Setting No: Time 1 2 3 4 5 6 6:30AM 8:30AM 12:30AM 1:30PM 5:30PM 10:30PM 24 hour control (same each day) 5/2 day control (Mon-Fri) Pre-set Temp 20° 16° 19° 16° 21° 16° Time User's Temp Time 7:00AM 10:00AM 12:00PM 2:00PM 5:00PM 10:30PM 5/2 day control (Sat/Sun) Pre-set Temp 20°C 16°C 19°C 16°C 21°C 16°C User's Time Temp When running normally the unit will control the heating system at the chosen temperatures. [. . . ] A On 6:30AM When the Central Heating is ON, a flame symbol appears in the display and the red CH indicator illuminates. b Off 8:30AM When the Hot Water is ON, a tap symbol appears in the display and the HW indicator illuminates. C On 5:30PM When the WATER +1 HR ON button is pressed, a O symbol appears in the display. This will extend an existing ON period by an hour, or switch ON for just one hour d Off 10:30PM if the Hot Water is OFF. [. . . ]