Carel uAD, User Manual, Page: 27 / 44

9
Fig. 3.b
μ A D
Mode
1
2
3
4
5
6
7
8
1 2 3 4 5 6 7
HR
°C
set
% rH
°C
9 10 11 12 13 14
15 16 17
18
19
20
21 22
Fig. 3.a
ENGL
ISH
µAD +030220465 - rel. 1.1 - 15.12.2010
3.1 Keys
name description
1 POWER Switches the ON/STAND BY state of the entire system:
See par. 5.2 “ON/STAND BY FUNCTION”
2 MODE Select the desired mode depending on the confi guration of the system and the µAD
model: heating, cooling, auto (automatic functioning), manual de-humidifi cation. See
paragraph 5.1 ‘Functioning modes.
3 HUM 1 On the basis of the En03 parameter (see paragraph 6.3):
- En03=0: HUM sets the humidity set point (note 1);
- En03=1: HUM sets the fans forced or automatic mode.
4 SLEEP Enables the ‘sleep’ function. By pressing it once the sleep function is activated with
duration of 1 hour. If it is pressed successively the duration is increased up to 9 hours.
To disable the function, press the key once.
5 CLOCK 2 - quick press: activates/deactivates times;
- pressing for 3 seconds: programming the times;
- pressing for 5 seconds: clock adjustment.
6 TEMP - Quick press: displays the data that normally do not appear on the display (e.g.
temperature set point, temperature detected, humidity detected and set humidity set
point).
- Pressing for 3 seconds: manual re-arm of the alarms active on
µChiller 2SE (indica-
ted by ‘rSt’).
7 UP - Increases the value selected.
- Increase of the temperature set point.
8 DOWN - Decreases the value selected.
- Decrease of the temperature set point.
Tab. 3.a
1 only used in models with humidity probe;
2 only used inmodels with clock.
3.2 Display
The symbols are displayed depending on the confi guration of the system and the µAD model.
description
9
cooling
3
10
heating
3
11 automatic functioning
12 de-humidifi cation
13 humidifi cation
14 displays in the different cases: temperature detected LC01 par. 6.1)
15 displays the current day of the week from Monday to Sunday.
16 can display: the time (if it has a clock); the temperature detected; the temperature set point; the
humidity detected (if it has a humidity probe); the humidity set point (see param. LC02 par. 6.3).
17 indicates the controlled functioning of the times
18 sleep mode
19 displays the duration of the sleep mode
20 alarm active
21 fans functioning
22 fans functioning in forced mode
Tab. 3.b
3 With the parameter of the µChiller P06=1 the symbols (9) and (10) are exchanged.
3.3 Network communication
µAD communicates by means of the RS485 network. The network is made up from µAD and a µC 2 or
µC 2 SE control.
The control must have an optional RS485 serial interface:
Control code Name RS485 serial interface code
MCH200000* µC
2
MCH2004850
MCH200001*
MCH200003*
µC 2 SE
MCH200103*
Tab. 3.c
3 USER INTERFACE