1 INTRODUCTION This manual describes the refrigerators with electric valve and ERF2000 DIGITS electronic produced in the Susegana factory called ZS. These models feature: static (static freezer, static cooler) total built-in DOOR ON DOOR door system single-compressor electronic control (electronic board ERF2000)
The temperatures regulation is the following: • from +8 to +2 °C for the cooler; • from -15 to -24 °C for the freezer. The DIGIT display enables to show the temperatures of the two compartments. The appliance has the following functions: •...
4 COMPONENTS 4.1 Control panel Key: Cooler compartment A. cooler ON/OFF indicator LED B. cooler ON/OFF button C. cooler temperature increase button (+) D. cooler temperature displaying E. cooler temperature decrease button (-) F. COOLMATIC Function LED (rapid cooling) G. COOLMATIC function button (rapid cooling) Freezer compartment H.
The electronic board of the appliance consists of: 1. ERF2000 power board 2. ERF2000 DIGITS display board The two electronic boards are connected by means of a flat cable with a connector; therefore, the two boards are available singularly as spare part.
4.2.1 ERF2000 Power board - View of the electronic board (side of components): 1. earth contact 2. free 3. line 4. compressor 5. neutral 6. lamp neutral 7. lamp 8. neutral electric valve 9. electric valve 1. free 2. free...
1. cooler air temperature sensor 2. cooler air temperature sensor 3. cooler evaporator temperature sensor 4. cooler evaporator temperature sensor 5. freezer air temperature sensor 6. freezer air temperature sensor 1. free 2. free 1. free 2. free 3. free 4.
4.3 Cooler and freezer compartments Key: A. freezer air temperature sensor; B. cooler air temperature sensor; C. cooler evaporator temperature sensor. 1. cooler door magnet; 2. display board reed element. - ITZAA 13/26 599 38 43-56...
4.3.1 Temperature sensors 3 NTC sensors are used to detect the temperatures of the two compartments: • freezer air temperature sensor A (located on the freezer cell); • cooler air temperature sensor B (located on the cooler cell); • cooler evaporator temperature sensor C (located on the cooler cell). The sensors A, B and C feature the foamed cable inside the cabinet, therefore they are not replaceable (for further information, please see Service Bulletin 599374122).
4.4.1 Electric valve The electric valve is of the 3-way bistable type. It is supplied together with the dehydrator filter. The connections of the electric valve are the following: central hose with dehydrator filter to connect the condenser; side hose (GS) to connect the capillary of the freezer circuit; side hose (KS) to connect the capillary of the cooler+freezer circuit.
5 MAIN FUNCTIONS 5.1 Normal Warning: Unplug the appliance before operating. In case of first switching on with a freezer compartment temperature higher than 10 °C, the appliance operates with a test cycle (for the factory) for a maximum time of about 1,5 hours. In this period do not perform tests for the correct operation of the appliance, since the loads of the appliance are activated only for internal check (compressor and electric valve).
5.2 FROSTMATIC Function (rapid freezing) The FROSTMATIC function (rapid freezing) is activated by pushing the relative button, therefore: • The pilot lamp relative to the FROSTMATIC function lights up; • The compressor operates in thermostatic conditions and not continuously (like the temperature knob was on max.
5.5 Malfunctioning of cooler air temperature sensor If during the normal operation a failure occurs to the cooler NTC temperature sensor (the signal coming from the sensor is out of range), then: • The display shows cooler temperature sensor faulty. •...
5.6 Malfunctioning of freezer temperature sensor If during the normal operation a failure occurs to the freezer NTC temperature sensor (the signal coming from the sensor is out of range), then: • The display shows freezer temperature sensor faulty. • The appliance operates with preset cycle when the compressor is powered for 40 minutes and remains off for 40 minutes alternatively.
6 ALARMS 6.1 Freezer compartment temperature alarm When the freezer compartment reaches -11 °C, the temperature alarm activates: • The display digits flash. • The temperature alarm pilot lamp light up. • The buzzer sounds. Push the alarm deactivation button to deactivate the buzzer. When normal conditions are reset (after a power failure): •...
7 SPECIAL FUNCTIONS 7.1 Service Mode 7.1.1 Starting Service Mode To start the procedure, perform the following operations: 1. Connect the plug to the socket. 2. Switch on the appliance with the ON/OFF button. 3. Open the doors of the appliance. 4.
8. Check of the counter. The display shows an increasing number at intervals of 1 second. This is a counter used by the board for its internal management. 9. Check of the temperature sensors. The display shows one of the following codes: Code DESCRIPTION No error...
7.2 DEMO MODE The DEMO MODE function is intended only for the commercial activity and not for the user. The internal temperature of the appliance, measured by the air sensors, must be higher than +10 °C so as the function can be activated. 7.2.1 Start DEMO MODE To start the procedure, hold down the ON/OFF button cooler+freezer and the freezer temperature decrease button for more than 5 seconds.
8 ACCESSIBILITY Warning: Disconnect the appliance from the electric power before operating with the appliance. 8.1 Control panel To access the control panel and its components (power and display boards) perform the following operations in sequence: a. Open the cooler door. b) View of the control panel of the upper cross- c) Remove the programme plate removing the 2 piece.
9 DISPLAY SYMBOLS 9.1 Cooler compartment DISPLAY DIGITS DESCRIPTION It indicates the cooler temperature with normal function NOT FLASHING [from +2 to +8]. It indicates the cooler temperature with DEMO MODE func- FLASHING tion [from +2 to +8]. It indicates the HOLIDAY function of the cooler compart- NOT FLASHING ment [15 °C].
9.2 Freezer compartment DISPLAY DIGITS DESCRIPTION It indicates the freezer temperature with normal function NOT FLASHING [from -15 to -24]. It indicates the freezer temperature with DEMO MODE FLASHING function [from -15 to -24]. It indicates the malfunctioning of freezer air temperature NOT FLASHING sensor.