Ambient Humidity Control - Carel µAM User Manual

Fig. 5.i
Fig. 5.l
Fig. 5.j
Fig. 5.k
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1. Press the Fan Coil button repeatedly (symbol 16 comes on) until field 15 shows the number correspon-
ding to the address of the desired e-drofan (0 = address 10); all the e-drofan units automatically detected
by the µAM on the data line can be scrolled.
2. Fields 18 and 19 display the ambient temperature measured by the e-drofan probe;
3. Field 6 displays the set point (symbol 8 "set" on) or "OFF" if the e-drofan is off;
4. Press POWER to switch the selected e-drofan ON/OFF (not possible if the µAM is OFF);
5. Use UP/DOWN to change the set point (this is not possible if the µAM is OFF);
6. To return to the normal display, press the Fan Coil button repeatedly or wait 10 seconds; the changes
made will be are saved in any case.
Setting the set point on all the e-drofan units to a common value
Note: The procedure is not available in the following cases:
• if the µAM is OFF;
• if during normal display mode the display shows symbol "set". See the following paragraph: "Using the
µAM temperature set point".
1. Hold the Fan Coil button on the µAM for at least 3 seconds until symbol 16 comes on and field 15 shows
"All"; field 6 display the common set point value to send to all the e-drofan units at the same time;
2. choose one of the following options:
• UP/DOWN to change and send the common set point;
• or Fan Coil: the value displayed is sent and the µAM returns to the main display;
• or wait 10 seconds without pressing any button: µAM automatically returns to the main display
without sending the value.
Information
The set point subsequently set on any of the e-drofan units from the acqua or e-droset terminal will be
maintained, as the only sends the common value when pressing the UP/DOWN buttons.
µAM
5.5.2 Using the temperature set point on the µAM (available only when Ch01=2 or
Co01=2)
Information
• If during installation the "Automatic changeover" function has been enabled with logic "Based on the
difference between the temperature measured by the µAM probe and its set point" (parameter Ch01=2)
Or: if during installation the "Compensation" function has been activated with logic "Based on the
difference between the temperature measured by the µAM probe and its set point" (parameter Co01=2),
then the ambient temperature set point will be the same for all the e-drofan units and equal to the set
point on the µAM, which will be shown, in normal display mode, in field 6 on the display (symbol 8 "set"
remains on).
• The set point subsequently set on any of the e-drofan units from the acqua or e-droset terminal will not
be maintained: every minute, µAM sets the set point on all the e-drofan units to the same value as its
own set point.
Procedure
Use UP/DOWN to change the set point: the change will be immediately sent to all the e-drofan units

5.6 Ambient humidity control

purchased features a humidity probe, during normal operation DEHUMIDIFICATION
If the model of µAM
or HUMIDIFICATION mode is activated automatically on the µC
during normal operation DEHUMIDIFICATION or HUMIDIFICATION mode is activated automatically on
the . DEHUMIDIFICATION mode on the µC
µAM
Information
• Humidity control is only available for the µAM controllers fitted with humidity probe and when the
external unit is fitted with the µC 2 SE.
• Humidification is only available if a humidifier has been installed.
How it works
• When the µC SE is in DEHUMIDIFICATION mode, it uses the specific DEHUMIDIFICATION water tem-
2
perature set point (colder water) rather than the ambient temperature control set point. In fact, a fan coil
with a colder exchanger coil causes the moisture contained in the air to condense.
• When the µC SE is in HUMIDIFICATION mode, the operation of the humidifier is activated to increase
2
the humidity level of the air.
DEHUMIDIFICATION on the µAM and DEHUMIDIFICATION on the e-drofan
The e-drofan controller features of a DEHUMIDIFICATION function that must not be confused with the function
.
on the µAM
• The DEHUMIDIFICATION symbol on the acqua or e-droset display only relates to the DEHUMIDIFICA-
TION function on the e-drofan
• If the MODE button on the e-drofan is used to activate the DEHUMIDIFICATION function, this setting is
not maintained: every minute µAM sets the active mode on the e-drofan to the same mode as the
2 SE purchased features a humidity probe,
2 SE can also be activated manually from the
µAM +030220460 rel. 1.0 - 08.05.2007
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µAM
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µAM