Mandik Climatix, Operating Instructions Manual

Page: 52 / 83

KJM MANDÍK
–
Detailed operating instructions
M&C KJMPNO 07/2022
MANDÍK, a.s.,
www.mandik.cz
52
of these contacts, the control monitors the status of the fire dampers and decides on the
operation of the air conditioning unit. The monitoring of the dampers can also be carried out using
the THC24-B electronic relay. Up to 8 fire dampers can be monitored in the standard
configuration.
The method of monitoring and the type of fire damper is determined in the configuration.
For motorised dampers, the open position contact is monitored during start-up and operation of
the unit. The damper must be closed (contact open) when the unit starts and open (contact
closed) after the TimeOpen time has elapsed.
If, while the unit is running, the contact indicating an open damper on any fire damper
opens (damper closes), then the AC unit will shut down immediately and a failure of that particular
fire damper will be indicated.

FireDamper ( Undefined / Close / Open / Err ) – information about the position of the fire damper.

Undefined – damper is currently moving between the extreme open and closed
positions.

Close – damper is in the closed position.

Open – damper is in the open position.

Err – damper is not in the expected position.

TimeOpen (130 s) – time it takes for the motorised fire damper to move from the closed
position to the open position. Applies only to configuration options Mot1c and Mot2c .

UnitStopFlapClose ( Open / Close ) – determines the position of the damper when the air
conditioning unit is off. Only applies to the Mot2c and THC configuration options.

Open – when the A/C unit is off, the power to the damper actuators is not turned off
and the dampers remain open.

Close – when the AC unit is off, the power to the damper actuators is turned off and
the dampers are closed.
Freecooling 6.18
Freecooling is used to freely ventilate the room and lower the temperature in it, using the
coolness of the outside air. It is mainly used at night. Freecooling can be triggered by a custom
time program, by an external contact or manually from the controller display. For proper
freecooling operation, sensors for outdoor, supply and room temperatures must be configured.