B2: DIXELL OPERATING INSTRUCTIONS
dIXEL
Operating instructions
1592002701
1592002701 XH240L-V GB r1.0 12.01.2004 *
XH240L - XH240V
2/4
LED
MODE
FUNCTION
ON
°C
°F
ON
°C
ON
The compressor is running
FLASHING
- Anti-short cycle delay enabled
LED 3
ON
The defrost is enabled
LED 3
FLASHING
Drip time in progress
LED 2
FLASHING
Programming Phase (flashing with LED3)
ON
Heating enabled
(temp)
FLASHING
Temperature Set programming phase
ON
- ALARM signal
ON
Fan is running
ON
The light is on
ON
RH%
ON
Dehumidifying enabled
ON
Humidifying enabled
(umid)
FLASHING
Humidity Set programming phase
5.2
HOW TO SEE AND MODIFY THE SET POINT (TEMPERATURE AND HUMIDITY)
1.
Push and immediately release the
SET
key: the display will show the Set point
valueand the correspondant set icon starts flashing;
2.
To change the Set value push the
o
or
n
arrows within 10s.
3.
To memorise the new set point value push the
SET
key again or wait 10s.
5.3
TO START A MANUAL DEFROST
1.
Push the
DOWN
key for more than 2 seconds and a manual defrost will start.
5.4
TO ENTER IN PARAMETERS LIST “PR1”
To enter the parameter list “Pr1” (user accessible parameters) operate as follows:
+
1.
Enter the Programming mode by pressing the
SET_RH
+
n
for
few seconds. (LED2&3 start flashing)
2.
The instrument will show the first parameter present in “Pr1”
5.5
TO ENTER IN PARAMETERS LIST “PR2”
To access parameters in “
Pr2
”:
1.
Enter the “Pr1” level.
2.
Select “Pr2” parameter and press the “
SET_RH
” key.
3.
The “PAS” flashing message is displayed, shortly followed by “0 - -” with a flashing zero.
4.
Use
o
or
n
to input the security code in the flashing digit; confirm the figure by pressing “
SET_RH
”.
The security code is “321“.
5.
If the security code is correct the access to “Pr2” is enabled by pressing “
SET_RH
” on the
last digit.
Another possibility
is the following: after switching ON the instrument the user can push
SET_RH
+
n
keys within 30 seconds.
NOTE
: each parameter in “Pr2” can be removed or put into “Pr1” (user level) by pressing
SET_RH
+
n
. When a parameter is present in “Pr1” LED 4 is on.
5.6
TO CHANGE PARAMETER VALUES
1.
Enter the Programming mode.
2.
Select the required parameter with
o
or
n
.
3.
Press the “
SET_RH
” key to display its value (LED2&3 start blinking).
4.
Use
o
or
n
to change its value.
5.
Press “
SET_RH
” to store the new value and move to the following parameter.
To exit
: Press
SET_RH
+ UP
or wait 15s without pressing a key.
NOTE
: the new programming is stored even when the procedure is exited by waiting the time-
out.
5.7
HOW TO LOCK THE KEYBOARD
1.
Keep the
o
and
n
keys pressed together for more than 3 s the
o
and
n
keys.
2.
The “
POF
” message will be displayed and the keyboard is locked. At this
point it is only possible the viewing of the set point or the MAX o Min
temperature stored and to switch ON and OFF the light, the auxiliary output
and the instrument.
TO UNLOCK THE KEYBOARD
Keep the
o
and
n
keys pressed together for more than 3s.
5.8
ON/OFF FUNCTION
By pushing the
ON/OFF
key, the instrument shows “OFF” for 5 sec. and the
ON/OFF LED is switched ON.
During the OFF status, all the relays are switched OFF and the regulations are
stopped;
N.B. During the OFF status the LED4 button is lighted.
6.
PARAMETER LIST
REGULATION
dbt
half dead band width for temperature:
(0,1÷25,5°C; 1÷45°F) this band is place below
and above the temperature set point (SET_TEMP). The compressor is enabled when the
temperature increases and reaches the SET_TEMP + dbt value. It is turned off when it
comes back to the SET_TEMP. The heating output is enabled when temperature is less
than SET_TEMP -dbt value and disabled when the SET_TEMP is reached.
dbH
half dead band width for humidity:
(0,5÷25,5RH) this band is place below and
above the humidity set point (SET_RH). The dehumidifying action is enabled when the
humidity increases and reaches the SET_RH + dbH value. It is stopped when it comes
back to the SET_RH. The humidifying output is enabled when humidity is less than
SET_RH -dbH value and disabled when the SET_RH is reached.
LS Minimum temperature set point limit:
(-50,0°C
y
SET; -58°F÷SET) Sets the minimum
acceptable value for the set point.
US Maximum temperature set point limit:
(SET
y
110°C; SET÷230°F) Set the maximum
acceptable value for set point.
OdS Outputs activation delay at start up:
(0÷255 min) This function is enabled at the initial
start up of the instrument and inhibits any output activation for the period of time set in the
parameter. (Light can work)
AC Anti-short cycle delay:
(0÷30 min) interval between the compressor stop and the
following restart.
LSH Minimum humidity set point limit:
(
Lci ÷ Set H
) Sets the minimum acceptable value for
the humidity set point.
USH Maximum humidity set point limit:
(
Set H ÷ uci
) Set the maximum acceptable value for
humidity set point.
DISPLAY
CF Measurement unit:
°C= Celsius; °F= Fahrenheit
rES Resolution (for °C)
: allows decimal point display.
dE
= 0,1°C;
in
= 1 °C
rEH Resolution for RH%:
in = integer; Hd= half digit.
DEFROST
IdF Interval between defrosts:
(1÷120h) Determines the time interval between the beginning
of two defrost cycles.
MdF Duration of defrost:
(0÷255 min) When
P2P = n
, no evaporator probe, it sets the defrost
duration, when
P2P = y
, defrost end based on temperature, it sets the maximum length for
defrost.
dFd Display during defrost:
rt
= real temperature;
it
= temperature reading at the defrost start;
Set
= set point;
dEF
= “dEF” label;
dEG
= “dEG” label;
dAd Defrost display time out:
(0
y
255 min) Sets the maximum time between the end of defrost
and the restarting of the real room temperature display.
Hud Humidity control during defrost:
no
: the humidity control is stopped during the defrost;
yES
the humidity control works also during the defrost.
FANS
FnC Fan operating mode: C-n
= running when a load is on, OFF during the defrost;
C-y
= running when a load is on, ON during the defrost;
O-n
= continuous mode, OFF during the defrost;
O-y
= continuous mode, ON during the defrost;
TEMPERATURE ALARMS
ALC Temperature alarm configuration: rE
= High and Low alarms related to Set Point
Ab
= High and low alarms related to the absolute temperature.
ALL Low temperature alarm setting:
ALC = rE
, 0
y
50 °C or 90°F
ALC = Ab
, - 50°C or -58°F
y
ALU
when this temperature is reached and after the ALd delay time, the LA alarm is enabled,.
ALU High temperature alarm setting:
ALC= rE
, 0
y
50°C or 90°F
ALC= Ab
, ALL
y
110°C or 230°F
when this temperature is reached and after the ALd delay time the HA alarm is enabled.
ALH Temperature alarm recovery differential:
(0,1÷25,5°C; 1÷45°F) Intervention differential
for recovery of temperature alarm.
ALd Temperature alarm delay:
(0÷255 min) time interval between the detection of an alarm
condition and the corresponding alarm signalling.
dAO Delay of temperature alarm at start-up:
(0min÷23h 50min) time interval between the
detection of the temperature alarm condition after the instrument power on and the alarm
signalling.
EdA Alarm delay at the end of defrost:
(0
y
255 min) Time interval between the detection of the
temperature alarm condition at the end of defrost and the alarm signalling.
dot Delay of temperature alarm after closing the door :
(0
y
255 min) Time delay to signal
the temperature alarm condition after closing the door.
HUMIDITY ALARMS
AHC Humidity alarm configuration: rE
= High and Low alarms related to humidity Set Point
Ab
= High and low alarms related to the “absolute” humidity.
AHL Low humidity alarm setting:
(with AHC = rE:
0 ÷ 50
. With AHC = Ab:
Lci ÷ AHu)
when this humidity is reached and after the AHd delay time, the HLA alarm is enabled,.
AHU High humidity alarm setting:
(with AHC = rE: 0÷50°C. with AHC = Ab:
AHL ÷ uci
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