User Manual

2/2 29.08.2008 CE1B2725en01 Building Technologies / HVAC Products
©
200
5
Siemens
Switzerland
Ltd
Do you want to change the temperature
setpoints of Comfort / Energy Saving mode?
 Press , the symbol and setpoint value is
flashing indicating Comfort mode setpoint change
expected.
 Press or button to change this setpoint in
steps of 0.5°C.
 Press to confirm and continue to the
Energy Saving mode heating setpoint.
 The and symbol and setpoint value is
flashing indicating Energy Saving mode heating
setpoint change is expected; press or button
to change this setpoint in steps of 0.5°C. Press
to confirm and continue to the Energy
Saving mode Cooling setpoint.
 The and symbol and setpoint value is
flashing indicating Energy Saving mode cooling
setpoint change is expected, press or button
to change this setpoint in steps of 0.5°C. Press
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?
You can temporarily adjust the temperature setpoint
when in Comfort mode. Press or button 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.
Do you want to view and set the Programmable
Timer setting?
 Press 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
symbol
displays with time xx:xx flashing to indicate
timer setting change is expected for the
Comfort mode.
 Press or buttons to adjust the Comfort
mode start time.
 Press
button to set the days applicable to the
timer. The
1
symbol will flash. Press or
button to select or deselect each day and
advance to the next day.
 Press to save the changes for the
Comfort mode start time and advance to set the
Energy Saving mode start time.
 The
and symbol displays with the time
xx:xx flashing. Press or button to adjust
the time. Only the time can be adjusted. Day
will follow Comfort mode setting.
 To cancel the timer, press
button until time
schedule changes to --:--.
 Press to save the Energy Saving mode
changes and advance to Auto timer 2.
 Repeat the procedure 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.
Do you want just heating?
Press button until display shows symbol only.
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
only. The system is restricted to cool. The
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
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 and symbols are not
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 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.
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