Carel uAD, User Manual, Page: 33 / 44

15
Fig. 5.o
Fig. 5.q
1 2 3 4 5 6 7
HR
°C
set
% rH
°C
16 17
18
19
Fig. 5.p
3
HR
°C
°C
1 2 3 4 5
Fig. 5.r
14
Fig. 5.s
3
°C
3
°C
17
15
19
μ A D
Mode
POWER
MODE
HUM
SLEEP
CLOCK
TEMP
ENGL
ISH
µAD +030220465 - rel. 1.1 - 15.12.2010
5.10 Sleep function
The sleep function intervenes on the set point temperature value, raising it in the summer and lowering
it in the winter. The temperature variation allows night-time energy saving.
Sleep function features
• It can be set for a maximum time of 9 consecutive hours and on expiry of the pre-set time it deacti-
vates automatically.
• If already activated, by pressing the SLEEP key it is deactivated.
• It is automatically deactivated every time the µAD is switched-on.
• It cannot be activated with the time periods, the ‘process’ mode or if the sleep differential for the
current season is equal to 0.0°C/°F (sleep mode disabled).
• During the sleep mode the set point is increased or decreased by a value that can e set by the user
(see “Sleep differential setting”). The pre-defi ned value is ±2 °C.
• The heating “sleep differential” is distinguished from the cooling one. Therefore, the setting of the
differential is only valid for the summer of winter mode in progress.
Activation
Press the SLEEP key. Every time the button is pressed it corresponds to an additional hour of the function. It is
possible to set up to 9 hours. The modifi cations are set after three seconds from when the key is released. The
sleep symbol
(18) and the duration of the hours (19) (Fig. 5.q) are shown on the display.
Deactivation
Press the SLEEP key
, the symbol (18) disappears from the screen (Fig. 5.q).
Setting the sleep differential
• Press the SLEEP key for 3 seconds, the fi eld (16) displays “diff” and fi eld (14) displays the sleep diffe-
rential corresponding to the current season (summer or winter). (Fig. 5.q)
• Press the UP or DOWN key to modify the value.
• Press the SLEEP key to end the setting procedure
.
5.11 Time periods
Prerequisites
• µAD with a Real Time Clock
• Parameter En01 =1 (default value)
The time periods allow to automatically set ON, STAND-BY or temperature at pre-fi xed times. µAD has
two types of time period: “weekday” (from Monday to Friday) and “weekend” (Saturday and Sunday).
Two set points are available for each group, indicated by “1” and “2” in the numerical area (19). (Fig. 5.r)
Activation/Deactivation of the time periods
Press and release the CLOCK key.
Setting the time periods
- Press the CLOCK key for 3 seconds. The symbol (17) fl ashes, the numbers from 1 to 5 of the fi eld
(15) can be accessed, the 1 time periods (19) and the weekday periods are displayed (Fig. 5.r).
- press the UP or DOWN keys to set the desired hour value (0...23),
- press the CLOCK key to memorise,
- press the UP or DOWN keys to set the desired minutes value (0...59),
- press the CLOCK key to memorise,
- press the UP or DOWN keys to select OFF ( 1 ), ON, or the set point ( 2 ).
- press the CLOCK key to memorise. The CLOCK symbol (17) fl ashes, the hour characters fl ash, the 2
time periods and the weekend periods are displayed.
Proceed in the same way to adjust the other time periods.
Note
• ( 1 ) The plant remains in STAND BY until the end of the time period.
( 2 ) It is only possible to select the set point if Pr01=0.
• Exit for timeout: 60 seconds (the settings made are saved).
• If all set points are set on OFF or ON (the latter is the default condition), the time period func-
tion is prevented and the CLOCK key cannot be pressed.
Weekday period (1..5
)
- weekend period (6..7
)
Time Periods Activated Time Periods Deactivated