Download  Print this page

Siemens QAX850 Operating Instructions

Multizone control system.
Hide thumbs
   

Advertisement

Operating instructions

QAX850 is a master room unit for the RRV856 multizone control system. This system allows you to control your heating and / or cooling and
to set your ideal temperature conditions within various zones in the building. 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.
System On and Fan Speed control
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.
There may be delays on start-up and after changes in mode. This is normal, as there are time delays built in to ensure safe
operation of the system.
When powering up, the QAX850 will display all LCD symbols. It will then revert to the 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 the applicable
symbol
. Some systems will include extreme high / low temperature protection activation during
further details.
Setting actual time and day
Press
button one time to set the time clock. (You will need to reset clock if there is a power loss of more than 20 minutes.)
Press
or
button to set the current time and then press
If current time is 12-hour format and you wish to change to 24-hour format, press
passing 12:00AM.
Building Technologies / HVAC Products
System Off
Comfort
mode:
System
comfortable room temperature
Energy saving mode: System operates only when
actual temperature reaches energy saving setpoints
Auto timer mode: System will switch from comfort
mode to energy saving according to program settings
Heating
Cooling
Time program
A1 ... A8
AUTO
Auto fan – Fan speed changes automatically
depending on heating/cooling demand from all zones
Low / Medium / High fan speed
1
7
Weekday indication
...
Z1
Z6
Zone indication
...
Z1
...
to confirm..
button passing 11:59PM or press
CE1B2727en01
B2727.01
QAX850 / RRV856
operates
to
maintain
Z6
zones together with the standby
– contact your supplier for
button
If current time is 24-hour format and you wish to
change to 12-hour format, press
23:59 or press
button passing 00:00.
Press
button 2 times within 2 seconds. Day
Weekday
symbol flashes.
1
7
..
Press
or
button to set the current weekday.
Press
to confirm. (
7
= Sunday).
Zone control
Remote operation of other zone room units is
Z
possible via this master room unit by pressing the
Z
button. Zones are numbered and indicated by
Z2
Z6
the
...
symbols.
Operation modes
Press
button to cycle through local zone off
or Comfort
or Energy Saving
Timer
mode.
Do you wish to turn off this zone?
Press
button until display shows
The local comfort zone will be switched off.
Do you wish to change to Comfort mode?
Press
button until display shows
Room temperature is maintained according to
Comfort setpoint and actual room temperature. A
Heat
or Cool
symbol will be displayed to
indicate the selected system mode.
Do you wish to change to Energy Saving mode?
Press
button until display shows
This is typically the mode for night time or
unoccupied periods where you require internal
temperature not to drift to an extreme level. A Heat
or Cool
symbol will be displayed to indicate
the selected system mode.
29.08.2008
button passing
1
= Monday through
or Auto
symbol.
symbol.
symbol.
1/2

Advertisement

   Summary of Contents for Siemens QAX850

  • Page 1: Operating Instructions

    QAX850 / RRV856 change to 12-hour format, press button passing QAX850 is a master room unit for the RRV856 multizone control system. This system allows you to control your heating and / or cooling and 23:59 or press button passing 00:00.
  • Page 2 Note: This document provides user instructions only. For more detailed technician information on the Multi-zone system, please refer to RRV856 installation / commissioning guide. © 2005 Siemens Switzerland Ltd Subject to alteration 29.08.2008 CE1B2727en01 Building Technologies / HVAC Products...

This manual also for:

Rrv856

Comments to this Manuals

Symbols: 0
Latest comments: