Dehumidification Setpoint Limit - Mitsubishi Electric Evolution+ s-MEXT Technical Manual

All the resources, if present, can be selected from the "Config" menu accessible through the "Factory" password.
The following table summarises the methods used to manage the heating resources both in heating and in post-heating:
Heating resources present
Electric heaters only
The cooling Setpoint parameter is in the "Setpoint" menu.
The cooling differential parameter is under the "Regulations" menu, which can be accessed by entering the "Service"
password.

8.3 Dehumidification setpoint limit

Limits for the humidification and dehumidification setpoints are set on the controller to ensure correct operation of the
humidification and dehumidification functions.
In particular, the dehumidification setpoint should always be:
•
Greater than or equal to the Humidification setpoint + P27.29.
•
Greater than or equal to the minimum limit for the dehumidification setpoint.
The first condition permits the creation of a dead zone between the dehumidification and humidification logics. This condition is
considered only if the unit is configured to work with complete humidity control (with humidification and dehumidification).
The second condition is always present if the unit is configured to control dehumidification and protects the unit by preventing it
from working in conditions of low humidity - conditions that could cause the unit to run at low evaporation temperatures.
Version 38
Step 3
Step 2
P50.02 - P50.02 -
2/6 1/6
P20.19
P20.19
1/2
P20.19
Figure 8-8: post heating resource management.
Central heating resources
Electric heaters
Step 1
T (°C)
P50.02
ambient
Post-heating resources
Electric heaters
151