Table of Contents
Advertisement
UM_s-MEXT_ME28relC_00_12_19_ML
3.3. FORCED VENTILATION ACTIVATION
When a unit is switched off using one of the procedures just described, the off command will be sent to the PAC-IF cards and ventilation will remain in
operation until the Mr Slim units have been switched off. This transitional period will be notified by the ventilation and the compressor icons flashing at the
same time.
In case of s-MEXT unit blocking alarm, ventilation is immediately disabled and the external Mr Slim unit immediately stops.
The blocking alarms are:
•
Air flow differential pressure switch
•
Clogged filter differential pressure switch
•
Heater thermostat
•
Fire/Fumes sensor
•
Flooding sensor
•
Gas leak detected (ventilation forced to maximum level).
4. DIRECT FREE COOLING STATUS DISPLAY MASK
Free Cooling status can be viewed at any time.
From the main mask, press the [DOWN] key to open the following mask.
The centre image offers a graphic representation of the Free Cooling
damper position.
The following values are also reported
•
External air temperature (left of the image).
•
External air temperature (right of the image).
•
Temperature difference (centre, above the image).
•
Free Cooling status (enabled or disabled).
•
Damper position (internal only, mixing, external only) and the
opening percentage.
5. LOCAL LAN NETWORK MANAGEMENT
5.1. PURPOSE OF THE LOCAL LAN NETWORK
The unit connection to the local network (LAN) allows to perform the following functions:
•
Balancing the operating hours among the different units by rotating the reserve units (Stand-by).
•
Turning on the reserve units in case other units should turn off due to an alarm, maintenance or power feed interruption.
•
Turning on reserve units to offset the excessive thermal load.
•
Checking up to 10 units with a single user terminal (shared user terminal).
•
Operating with all units based on the average temperature and humidity values read by the temperature probes only in the operating units.
OBLIGATION
To allow the LAN to operate correctly, the units must have the same software version and revision (e.g.: ME28r00).
If there is more than one version, update to the latest version or create two different LAN's.
USER MANUAL
DT 03.0
T.INT
T.EXT
24.0
21.0
Status
Enabled
Position ALL INTERNAL
000%
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
46
Damper in internal air only position
Damper in mixing position
indoor and outdoor air.
Damper in external air only position.
Advertisement
Table of Contents
