Ventilation Forced Switching On - Mitsubishi Electric s-MEXT 006-044 Manuel D'utilisation

UM_s-MEXT_ME18relC_00_11_18_ML
Advanced: For setting up to 4 different types of programming category (A, B, C and D), with a maximum of 10 different time bands, that can be
o
assigned to each day of the week.
2. For each day of the week:
Disable the time bands: On the day selected, the controller runs without the time bands.
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Enable a type of time band (A, B, C or D): On the day selected, the controller runs as programmed.
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3. For each time band:
Unit status: OFF (unit turned off by time bands) or in adjustment mode (unit turned ON by time bands).
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Time band start time (for the first time band, this is fixed at 00:00).
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Time band end time (for the tenth time band, this is fixed at 23:59).
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Cooling setpoint.
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Heating setpoint (when applicable and configured).
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INFORMATION
The time bands B, C and D are shown only when Advanced programming is selected.
INFORMATION
To use a smaller number of bands, simply set the time a band ends to the same time it begins. In this way, the band in question is
ignored.
Below are a few examples that, in graphical form, use bands A, B and C in the clock menu.
The weekly graph uses band A for Monday, band B for Tuesday, Thursday and Friday, and band C for Saturday, and the bands are disabled for Sunday.
Band A
Using the supervision protocol
Only if the serial board is fitted.
Check in the "User menu" that the parameters "Serial line enabling" and "On/Off enabling from supervisor" are set at "Yes".
Proceed as follows:

Switching On: Send the switching on command from the protocol. The corresponding icon is displayed on the main mask.
Note: The unit does not switch on if it is set to "Off from keypad" or "Off from digital input".

Switching Off: Send the switching off command from the protocol. The corresponding icon is displayed on the main mask.
3.3

VENTILATION FORCED SWITCHING ON

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 will stop immediately and the external MR SLIM unit will only wait for the minimum ON time.
The blocking alarms are:

Air flow differential pressure switch

Clogged filter differential pressure switch

Heater thermostat
USER MANUAL
Band B
Week
Adjustment
Figure 3-1: Example ofdaily time band settings
45
Band C
Unit off
TRANSLATION OF THE ORIGINAL INSTRUCTIONS