Operating instructions QAX850 / RRV851
Contents
1. mode when absent for extended periods Although auto changeover of heat cool is possible it is recommended you select cool mode only in summer and heat mode only in winter Note This document provides user instructions only For more detailed technician information please refer to RRV851 installation commissioning guide Subiect to alteration Building Technologies HVAC Products2. SIEMENS fen Operating instructions QAX850 RRV851 QAX850 is a master room unit for the RRV851 standard control system This system allows you to control your heating and or cooling and to set your ideal temperature conditions The system provides Comfort Energy Saving and Auto Timer mode with a 7 day programmable schedule Factory settings are already set however you can adjust these to suit your personal needs SIEMENS y System Off 3 Comfort mode System operates to maintain comfortable room temperature Cc Energy saving mode System operates only when actual temperature reaches energy saving wil gt setpoints Q Auto timer mode System will switch from te comfort mode to energy saving according to program settings eo s Heating P xe Cooling Pe A1 A8 Time program AUTO Auto fan speed a a amp amp Low Medium High fan speed _ n Weekday indication System On and Fan Speed control AID Press to turn system on or off and to select fan speeds Low Medium High Auto Fan and System Off If your system is single speed fan only then simply press to turn system on or off When powering up the QAX850 will display all LCD symbols It will then revert to normal display The time segments will be flashing if time needs to be set The system off mode turns the whole system off and is indicated by a standby symbol Some systems will include extreme high
3. dure for setting Timer A1 and advance to next timer System will return to normal operational mode if no button is pressed within 20 seconds All modifications made after last Time Schedule and button pressed will not be saved What is the green LED for The green LED indicates when heating or cooling energy is activated AP1B2725en01 Do you want just heating Press button until display shows symbol only g a The system is restricted to heat The symbol will not appear if your air conditioning equipment provides cooling only Do you want just cooling Press button until display shows symbol Xo only The system is restricted to cool The at symbol will not appear if your air conditioning equipment provides heating only Do you want auto changeover of heat cool _ Press button until display shows both and Y symbols This indicates the system will activate heating or cooling in order to maintain desired temperature setpoint This applies to heating cooling air conditioning equipment only Do you want ventilation fan only Press button until the S and symbols are not gm displayed No heating or cooling will be provided only ventilation Energy saving tips without sacrificing comfort Never allow room temperatures to exceed 21 C when heating or fall below 22 C when cooling Select Energy Saving mode even when you are absent for short periods of time and select System Off
4. erature not to drift to an extreme level A Heat or Cool symbol will be displayed to indicate the selected system mode Do you wish to change to Auto Timer mode CQ Press amp button until display shows Q Se symbol The system will automatically change over between Comfort and Energy Saving mode according to 8 pre programmed timers 23 03 2005 1 2 Do you want to change the temperature setpoints of Comfort Energy Saving mode WC a Press the 3 symbol and setpoint value is flashing indicating Comfort mode setpoint change expected Press A or V button to change this setpoint in steps of 0 5 C Press to confirm and continue to the Energy Saving C mode heating setpoint The C and symbol and setpoint value is flashing indicating Energy Saving mode heating setpoint change is expected press A or V button to ees this setpoint in steps of 0 5 C Press to confirm and continue to the Energy ae mode Cooling setpoint The C and symbol and setpoint value is flashing indicating Energy Saving mode cooling setpoint change is expected press A or V button to change this setpoint in steps of 0 5 C Press C to save the change Note If no button is pressed after 5 seconds setpoint setting changes will be saved and operational mode will resume During Comfort mode operation are you too warm too cold a You can temporarily adjust the temperature setpoint when in Comfort 3 mode Press A or V b
5. low temperature protection activation during contact your supplier for further details Setting actual time and day D Press button one time to set the time clock You will need to reset clock if there is a power loss of more than O 20 minutes Press A or V button to set the current time and then press to confirm If current time is 12 hour format and you wish to change to 24 hour format press A button passing 11 59PM or press V button passing 12 00AM f current time is 24 hour format and you wish to change to 12 hour format press A button passing 23 59 or press V button passing 00 00 Building Technologies HVAC Products AP1B2725en01 Weekday Press button 2 times within 2 seconds Day symbol flashes EN EA Press A or V button to set the current weekday Press gt to confirm E Monday through Sunday Operation modes _ Press button to cycle through Comfort 3 aie HCR or Energy Saving C or Auto Timer 4 mode Do you wish to change to Comfort mode s Press lt button until display shows 3 symbol Room temperature is maintained according to Comfort setpoint and actual room temperature A Heat S or Cool 3 symbol will be displayed to indicate the selected system mode Do you wish to change to Energy Saving mode ET Press button until display shows C Se symbol This is typically the mode for night time or unoccupied periods where you require internal temp
6. utton to adjust the temperature setpoint You can increase or decrease the room temperature setpoint in steps of 0 5 C The maximum range is from 5 C to 35 C however it is recommended to not exceed 18 C to 26 C range Setpoints will revert back to permanent setpoint settings after any mode change This button is not used oN 2005 Siemens Switzerland Ltd 2 2 23 03 2005 Do you want to view and set the Programmable Timer setting lt gt Press lt gt button once to sequentially review the 8 auto timers To adjust the time schedule hold for 3 seconds to go into Programmable Timer Setting mode Auto timer 1 shows A1 and wg symbol displays with time xx xx flashing to indicate timer setting change is expected for the Comfort mode Press A or V buttons to adjust the Comfort mode start time Press button to set the days applicable to the timer The E symbol will flash Press A or V button to select or deselect each day and advance to the next day Press C to save the changes for the Comfort mode start time and advance to set the Energy Saving mode start time The and Q symbol displays with the time xx xx flashing Press A or V button to adjust the time Only the time can be adjusted Day will follow Comfort mode setting To cancel the timer press S button until time schedule changes to Press C to save the Energy Saving mode changes and advance to Auto timer 2 Repeat the proce
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