Siemens Climatix POL822 Instruction

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Siemens room unit QAA822 Building Technologies

Use

The room unit is intended for basic users control and monitoring of
the function of Mandík air conditioning units incl. basic parameters.
The measurement of temperature of the room, where the room unit
is installed, is integrated. Up to two room units can be connected to
the Mandík measurement and control system. The room unit is not
intended for setting the configuration parameters. The
configuration parameters are set on the control panel of Climatic
controller or through the web viewer of the computer connected to
the Climatix controller installed in the switchboard with OS
designation. The parameter setting is described in the document
„Detailed instruction for control through HMI Climatix“.

Characteristics

The room unit is intended for semi-flushed surface mounting with a
recessed installation box. The cable entry is through the rear of the
unit.
The unit consists of a front cover with electronics and a rear cover.
The rear cover can be removed after loosening the safety
mechanism.
The front cover comprises a printed-circuit board and a room
temperature sensor, an LCD panel and key buttons for selection of
operating mode, temperature set-up, time setting and fan speed.
The rear cover includes terminal connections for connection of two­wire communication conductors. Both covers are made of plastic
material.

The cover removal is described in the Installation manual that
forms a part of the package.

Control buttons and display

Cover removal

No.

Icon

Name

Function

1 ON/OFF

Button for switching on or off the air conditioning
unit.

2 Occupancy

The button enables to switch on/off temporarily the
occupancy mode in the time programme.

3 Parameters

The button enables to change the required
temperature values or to quit the viewing of the
actual temperatures.

4  Minus

The button for changing the set-point of the selected
parameter or temperature.

5  Plus

The button for changing the set-point of the selected
parameter or temperature.

6 Info

By pressing the button the viewing of current
temperatures is activated or the possibility to change
the required temperatures is quitted.

7 Fan

The button is used to set the fan speed within the
pre-set fan speeds for the modes Economy and
Comfort.

8 Mode

Using this button you can switch between the modes
Time Schedule, Economy and Comfort, when the
air conditioning unit is on.

Buttons

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Siemens room unit QAA822 Building Technologies

No.

Icon

Meaning

1

Temperature in °C (resolution 0.1 °C).

The temperature can be adjusted with a resolution of

0.5°C.

2

Time

3

Fan speed. Number of stages

4

Weekday indicator in the lower part of the display.

5

Modes are switched off – the air conditioning unit is off
or it works in the complementary mode of room frost
protection based on parameters in the room unit
setting).

6

Automatic change of air conditioning unit modes
according to the time schedule. It is not used, if no time
schedule is available.

7 Economy mode - the air conditioning unit is on.

8 Comfort mode - the air conditioning unit is on.

9

Cooling is on; the flashing icon indicates a cooling
failure.

10

Heating is on; the flashing icon indicates a heating
failure.

11

Humidifying is on; the flashing icon indicates a
humidifying failure.

12

Complementary mode is on; the flashing icon indicates
the complementary mode failure.

13

Fans are on; the flashing icon indicates a fan failure.

14

Operation with the use of power-saving function of
energy recovery and air mixing. The flashing icon
indicates the failure of generator energy saving
function.

15

Failure indication. The flashing icon indicates a new
failure. The lighting icon indicates an extinct failure not
confirmed/quitted by the operator or a failure that has
been quit by the operator, but has not extinguished yet.
Further details are given by flashing icons. The specific
failure is displayed on the control panel of the Climatix
controller or web viewer of the computer connected to
the Climatix controller in the OS-designated
switchboard.

16

Indication of non-standard operation or status of the air
conditioning unit. The lighting icon indicates a non­standard operation, so-called non-serious failure
(clogged filter, thawing air conditioning/condensing unit,
etc.). The flashing unit indicates blocking of the air
conditioning unit operation due to non-meeting of
operating conditions (low temperature of heating water,
etc.). The particular information is displayed on the
control panel of the Climatix controller or web viewer of
the computer connected to the Climatix controller in the
OS-designated switchboard.

Icons

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Siemens room unit QAA822 Building Technologies

Function description

Switch the air conditioning unit on or off by pressing the button
OFF/ON.
When the air conditioning unit is switched on, the unit is in
condition before last switching off (Time Schedule, Economy or
Comfort). This condition is indicated by combination of icons 6, 7
and 8.
After switching off the air conditioning unit, the unit is either turned
off or it changes over into complementary mode of room frost
protection. This status is indicated by icon 5. In the default setting
of the complementary frost protection mode, the air conditioning
unit is turned off. Only if the room temperature falls below 5°C, the
air conditioning unit is switched on until the room temperature
higher than 5°C is reached. If the room temperature sensor is not
used, it can be substituted by a temperature sensor of the supplied
or exhausted air. The substitution is performed in configuration
parameters*).

After switching on the air conditioning unit by the OFF/ON button
and by pressing the button Mode the air conditioning unit switches
between the modes Time schedule, Economy and Comfort in
cycles. If no time schedule is set, the air conditioning unit switches
only between the modes Economy and Comfort. The currently
selected mode is indicated on the display by the combination of the
relevant icons 6, 7 and 8.

In the mode Economy the air conditioning unit is heating or cooling
so that the temperature required for this Economy mode is
reached. This mode is indicated on the display by the icon 7. The
default setting for this mode is 18°C.
The current temperature can be changed temporarily by the Plus
or Minus buttons. The temperature setting can be changed by the
Parameters button.
The fan speed is preset in the configuration parameters of this
mode*). The speed can be increased by the button Fans in six
steps up to the speed corresponding to the Comfort mode. This
setting is possible only if the configuration parameters are adjusted
for fan button control*).

In the mode Comfort the air conditioning unit is heating or cooling
so that the temperature required for this Comfort mode is reached.
This mode is indicated on the display by the icon 8. The default
setting for this mode is 22C.
The current temperature can be changed temporarily by the Plus
or Minus buttons. The temperature setting can be changed by the
Parameters button.
The fan speed is preset in the configuration parameters of this
mode*). The speed can be reduced by the button Fans in six steps
down to the speed corresponding to the Economy mode. This
setting is possible only if the configuration parameters are adjusted
for fan button control*).

Starting the air conditioning unit

Operating mode selection

Operating mode
Economy

Operating mode Comfort