ALCO CONTROLS EC1-040 Mode D'emploi page 2

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Table Des Matières

Table des Matières

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LIST OF PARAMETERS

Parameter

PASSWORD

SENSOR PARAMETERS

Temperature offset of room sensor

Reading stability

Reading speed

Virtual sensor

°C /°F (0=°C, 1=°F)

Decimal point (0=yes, 1=no)

REGULATOR PARAMETERS

Regulator differential

Minimum allowable set

Maximum allowable set

Enabling Ed alarm (defrosting inhibited as the max duration is

reached,

Automatic variation of the set-point during the night (or when the

Curtain-switch is closed, with A4 or A5=7)

Enabling min. and max. temperature monitoring

(0=OFF, 1=ON)

Readout of elapsed time since enabling r5,

Reset of monitored values

Readout of max. temp. monitored

Readout of min. temp. monitored

COMPRESSOR PARAMETERS

Delay compressor insertion after

control reset

Minimum time between two insertions

Minimum OFF routine

Minimum ON routine

Safety relay (0=OFF,100=ON).

See duty setting

Continuous cycle duration

Alarm delay after continuous cycle

DEFROST PARAMETERS

Type of defrost (0=heater (temp.),1=hot gas (temp.), 2= water or

heater (time), 3= hot gas (time))

Time interval between two defrost cycles

End defrost temperature

Max duration of the defrosting or effective

duration if d0=2 or 3

Defrost after power ON (0=no,1=yes)

Delayed defrost after power ON or

from Multifunct. input (A4 or A5=4)

Blank display during defrost (0=no,1=yes) C

Dripping time

ALARMS AND SIGNALS

BLINKED FUNCTIONING LED

If a LED blinks it means that the corresponding function is delayed by a

timed routine, by another procedure or inhibited by the digital input.

E0 BLINKS: faulty room sensor / E1 BLINKS: faulty defrost sensor

• Used sensor is not compatible with the control

• The sensor cable is interrupted or short circuited

• Faulty sensor: Take out the sensor from the control and verify the

resistance (NTC: 0°C=27K)

AI BLINKS: immediate external alarm

• Check the "Multifunction" input and the A4 parameter

Ad BLINKS: delayed external alarm

• Check the "Multifunction" input and the A4 and A7 parameters

LO BLINKS: low temperature alarm (temperature less than SET-POINT minus AL)

• Verify the AL, Ad and A0 parameters

The alarm disappears as soon as the temperature rises and ranges

within the selected limits

HI BLINKS: high temperature alarm (temperature higher than SET-POINT plus AH)

• Verify the AH, Ad and A0 parameters

The alarm disappears as soon as the temperature decreases and

ranges within the selected limits

ALCO CONTROLS, Heerstr. 111, D-71332 Waiblingen. Germany - Tel.:.49 7151 509 0 - Fax: 49 7151 509 200

Electronic Digital Thermostat with Defrost Control

for Ventilated Units Working at Low Temperature Ranges

Type Min Max Unit Def

00 +199

-20

+20 °C/°F 0.0

100

0.1 +19.9 °C/°F

-60

r2 °C/°F -50

+199 °C/°F 60

dP-parameter) 0=OFF, 1=ON.

flag

+20 °C/°F 3.0

199 hours

-50

+90 °C/°F

-50

+90 °C/°F

100 min

15 hours

199 hours

-50 +199 °C/°F

199 min

Parameter

Alarm delay after defrost and/or if A4 or A5=5,

when door is open

Priority of the defrost over compressor safety (c1, c2, c3)

(0=no,1=yes)

Defrost sensor reading (d0 = 0 or 1)

Time selection (0=hours/min,1=min/s) C

flag

ALARM PARAMETERS

flag

Alarms and fans delta

Low temperature alarm

(with respect to set-point)

High temperature alarm

(with respect to set-point)

Temperature alarm delay

Configuration of the digital input No. 1 C

Configuration of the digital input No. 2 C

Duty setting in case of external alarm

(0=OFF, 1=ON)

External alarm delay (A4 or A5=2)

FAN PARAMETERS

flag

Management of fans: 0= fans always ON – specific phases

excluded

1= thermostatic fans on the basis of the difference between

ambient and evaporator temperature,

2= thermostatic fans according to the

evaporator temp.

Starting temperature of the fans:

min

Evaporator temperature < (ambient temperature - F1 - A0) = fans are ON

min

Evaporator temperature > (ambient temp. - F1) = fans are OFF

min

Evaporator temperature < (Set-point + F1 - A0) = fans are ON

Evaporator temperature > (Set-point + F1)= fans are OFF

STOP fans when compressor idle

(0=no, 1=yes)

Fans off during defrost (0=no,1=yes)

Stop after dripping

flag

OTHER SELECTIONS

Serial address not available

Relay 4: alarm/aux (0=aux,1=alarm)

0=buttons disabled; 2=IR & buttons disabled;

3=IR remote control disabled

flag

Password for IR remote control

1=buzzer disabled

Note: Concerning the indicated parameters, it is recommended to check, before

flag

installing, if the factory value is suitable for the required use.

min

EA, EB, EE: data acquisition failure; controller RESET

Set again the default parameters value:

• switch-OFF the control;

• press the PRG button while switching on the control;

• "-c-" is displayed;

• after few seconds the RESET phase begins and it is possible to change

the parameters; (*)

• if EE persists, press the

(*) Re-setting the default values causes the loss of the modifications

relative to the working parameters.

Ed BLINKS: timeout defrost

• Verify the dt, dP and d4 parameters

• Verify defrost efficient

dF BLINKS: defrost currently ON

• It is not an alarm signal. It simply indicates a defrost cycle in progress.

It appears only if the parameter d6=0.

N.B. When cleaning the display use damp cloth and neutral detergent.

ALCO reserves the right to modify the contents of its products without prior notice.

EC1-040

Type Min Max Unit Def

15 hours

0.1

+20 °C/°F 0.2

+199 °C/°F

199 min 120

100 min

199 min

(see F2, F3 and Fd parameters)

Case A F0=1:

Case B F0=2:

+20 °C/°F

199

button until the error indication disappears.

07.07.99

A.6.5.23 - Rev -

flag

°C/°F

flag

min

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