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User manual
ALFANET 95

Cool/Freeze thermostat with a temperature sensor,
two defrost sensors, a day/night digital input, 
relays for defrost-1, defrost-2, fan, cool and alarm. 

VDH doc. 041617

Version: v1.6

Date: 10-04-2012

Software: 050182_ALFANET 95 RTDF

File: Do041617.wpd

Range: -50,0/+50,0

/

C

* Description.

The 

ALFANET 95

 is a cooling/heating thermostat with various automatic defrost and fan control. 

It can be programmed through the 

ALFANET PC-INTERFACE

 on the PC.

* Installation.

On the connection diagram of  the  

ALFANET 95

 is show how the sensor, the digital input, the RS485

network, the power supply and the relays should be connected. After the 

ALFANET 95

 has been

connected  to  the  power  supply  a  self-test  function  will  take  place,  after  which  the  measured
temperature will appear in the display. 

* Operation.

The 

ALFANET 95

 thermostat can be operated by means of four pushbuttons on the front. These

pushbuttons are:

SET

- view / change the setpoint.

UP

- raise the setpoint.

DOWN

- lower the setpoint.

/

C

- hidden key under the 

/

C text.

* Normal operation status.

During normal operation the temperature of the control sensor (Temp.) is shown in the  display.

* Status of the Relays.

Press the 

/

C

 key. The three lower segments light up and the

upper vertical segments show the status of the five relays 
(see diagram). Relay is active when the segment lights up.

Содержание ALFANET 95

Страница 1: ...S485 network the power supply and the relays should be connected After the ALFANET 95 has been connected to the power supply a self test function will take place after which the measured temperature w...

Страница 2: ...parameters Defrosting can also be done manually Stop If defrosting is taking place defrosting can be stopped manually by pressing the DOWN and UP keys simultaneously Start If defrosting is not taking...

Страница 3: ...hed the set defrost end temperature P31 The ALFANET 95 has a number of automatic defrost possibilities that can be set with the following parameters Parameter 24 Type of defrost The ALFANET 95 has thr...

Страница 4: ...de Using the UP and DOWN keys the desired parameter can now be selected see the parameter table When the desired parameter has been selected the value of the parameter can be read out by pressing the...

Страница 5: ...e delay minimum alarm Compressor on at control sensor failure Alarm off after manual reset Alarm off after alarm is solved Function alarm relay 0 None 1 Absolute 2 Relative 50 50 C 50 50 C 0 99 Minute...

Страница 6: ...6 Dimensions of ALFANET 95 Control unit I O unit...

Страница 7: ...7 Connection data Diagram 042527w2...

Страница 8: ...8 Function diagram Address VDH Products BV Tel 31 0 50 30 28 900 Produktieweg 1 Fax 31 0 50 30 28 980 9301 ZS Roden Email info vdhproducts nl Netherlands Internet www vdhproducts nl...

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