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BFFF HUY
Partial Frost-free Bottom Combi
Nyíregyháza Factory

Nyíregyháza Factory
Electrolux Code HUY

Nyíregyháza
HUY
Satu Mare
ROA
Jászberény
HUC

Product Range HUY
HUY production:
bottom combis “Convenience Range”
Static, 1 or 2 compressors,
transfer from HUC (partly from ZS)
Partial frost-free (BFFF), new models
4 cabinet heights: 1540, 1750, 1850, 2010 mm

Convenience Range HUY
STATIC

A+

FROST FREE

A+

A+

A+

FF

FF

BOTTOM
FREEEZRS 60CM

Type
Base Model
Factory
Energy
Height mm.
Width
Gross Capacities
Net Capacities
Total Gross/Net

Q1/2005
Q1/2005
Q1/2005
Q1/2005
Q1/2005
Q1/2005
Q1/2005
Q1/2005
Combi
Combi
Combi
Combi
Combi
Combi
Combi
Combi
CB290 1C CB290 2C CB340 1C CB340 2C CB360 1C CB360 2C CB400 1C CB400 2C
HUY
A+/A
1540
595
211+79
208+61
290/269

HUY
A+/A
1540
595
211+79
208+61
290/269

HUY
A+/A
1750
595
226+110
223+92
336+315

HUY
A+/A
1750
595
226+110
223+92
336+315

HUY
A+/A
1850
595
249+110
245+92
359/337

HUY
A+/A
1850
595
249+110
245+92
359/337

HUY
A+/A
2010
595
291+110
287+92
401/379

HUY
A+/A
2010
595
291+110
287+92
401/379

Q3/2005
Combi
CBFF340

Q3/2005
Combi
CBFF380

HUY
A
1850
595
249+86
245+72
334/316

HUY
A
2010
595
289+86
285+72
374/357

HUY BFFF
BFFF is a new range of partial frost-free bottom
combis from HUY
BFFF = Bottom Freezer Frost-Free
Partial frost-free:
static refrigerator
frost-free freezer
2 cabinet heights:
1850 mm (245 / 72 l net)
2010 mm (285 / 72 l net)
2 types of controls:
electromechanic thermostat
electronic “Dual Smart”

Convenience range, frost free
Based on the static range, develop a
cost efficient range of Frost free 60cm
combi bottom models to meet the
growing mass market price for frost
free combi bottom products.

Frost Free Generation 1 - Product
range
CBFF340

CBFF380

Bigger internal capacity
The Convenience range offers an
extra 10-15% usable storage
capacity compared to the actual models
with the same external dimensions.
This has been obtained with

Full height side panels
Removing the conventional top
and leaving only a front panel
Reducing the plinth to 5 cm
Optimizing the internal layout of
the appliances

Model
CBFF340
CBFF380

Height
185cm
201cm

Gross cap.
340
382

Net cap.
323
363

Freezer Evaporator Assembly
EVAPORATOR

EPS COMPONENT

KLIXON

DEFROST HEATER

ALUMINIUM PLATE
FAN BRACKET

FRONTAL GRID
(Air Inlet)

FAN
MOTOR

DOOR SWITCH
FAN SUPPORT

EVAPORATOR HOLDER

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Thermostats
on Battery Evaporator

Safety thermostat

+ 40°C

Defrost end thermostat

+ 8°C

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Freezer Evaporator
Access to Parts

Circuit Diagram
Electromechanical Version

FRIDGE
THERMOSTAT

DEFROST TIMER
DEFROST
THERMOSTAT
8°C
FRIDGE
DOOR
SWITCH

FREEZER
EVAP.
FAN
COMPRESSOR

DEFROST
HEATER
200 W

SAFETY
THERMOSTAT
40°C

FRIDGE
LAMP

Wiring Diagram
Electromechanical Version

Defrost Control
Electromechanical Models
Timer-controlled defrost
Timer motor is in series with main switch (6-3), and
will run continuosly when appliance is switched on
Defrost interval: 14 hours
Defrost time: 30 minutes
After defrost interval: compressor off
defrost heater on
After defrost time :
compressor on
defrost heater off *
* defrost heater will be normally cut off by defrost
thermostat (+8°C) before end of defrost time
Safety thermostat + 40°C

Defrost Timer Box

Defrost Timer Access

Defrost Timer

Models with Electronic Control
ERF2021 + Dual Smart

The electronic models are equipped with a new electronic
control, consisting of:
Power Board ERF2021
User Interface “Dual Smart”
It offers quasi-independent temperature control in the 2
compartments of an 1-compressor combi, using separate
temperature sensors and an “intelligent” balance heater
This type of electronic control can be used on models with staic
freezer too

Power Board ERF2021

User Interface with LCD

Dual Smart

2 rotary temperature selectors (potentiometers), with maxmiddle-min settings corresponding approximately to:
+8 +5 +2°C in refrigerator
-16 -18 -24°C in freezer
LC Display will normally show ambient temperature, user
can switch to refrigerator or freezer temperature
Functions : Fast Freezing, Shopping, Freezer temperature
alarm

Control Panel

A

A.
B.
C.
D.
E.
F.

B

C

D

E

ON/OFF BUTTON
TEMPERATURE SELECTOR FREEZER
TEMPERATURE DISPLAY SELECTION BUTTON
DISPLAY (TEMPERATURES AND FUNCTIONS)
FUNCTION SELECTION BUTTON
REFRIGERATOR TEMPERATURE SELECTOR

F

Display Symbols
1

2

3

4

1.

ambient (room) temperature

2.

refrigerator

3.

freezer

4.

– or + sign

Display Symbols
6

5

8

7

5.

Temperature display

6.

Fast freezing symbol

7.

Freezer temperature alarm

8.

“Shopping” mode

First Power On
Press ON/OFF
Display shows ambient temperature and the ”house”
symbol
Temperature alarm symbol flashing, display backlit in red,
acoustic alarm on
Press function selection button to cancel the acoustic
alarm
Set desired temperatures in refrigerator and freezer
respectively, using the selector potentiometers
(N.B.: it is not possible to set an exact numeric value,
but only an approximate angular setting)

Temperature Display
normally, the ambient temperature will be shown
pressing the temperature selection button will scroll
through:
refrigerator temperature
freezer temperature
ambient temperature
after 10 seconds without any action, the display will revert
to ambient temperature

Switch off Apliance
Press ON/OFF for about 1 sec
Countdown ”3-2-1”
Display blank

Fast Freezing
Press function selector button until star symbol is shown
in display
Freezer temperature is set to the value corresponding to
the lowest setting
To cancel, press function selector button until star symbol
disappears
Maximum duration: 52 hours

Shopping (Supercool)
Press function selector button until shopping symbol is
shown in display
Refrigerator temperature is set to the value corresponding
to the lowest setting
To cancel, press function selector button until shopping
symbol disappears
Maximum duration: 6 hours

Freezer
Temperature Alarm
Activated when freezer temperature is above - 8°C
Display backlit in red, flashing
Alarm symbol in display
Display shows freezer temperature
Buzzer sounds (can be cancelled with function selection
button)
If freezer temperature drops below - 8°C, the buzzer sound
will be cancelled
Optical alarm (alarm symbol & red backlighting) remains
When pressing the function selection button, the highest
temperature reached in the freezer is shown, after which
the optical alarm is also cancelled

Wiring Diagram
Electronic Version

Sensors and Balance Heater
E

A. evaporator sensor
(only refrigerator)
B. refrigerator air sensor
C. balance heater
D. freezer air sensor
E.

ambient temperature
sensor (on PCB)

Location of Air Sensors
Sensors not replaceable
(in insulation foam)

Sensor Characteristic
90
80
70
60
50
40
30
20
10
0
-40°C -30°C -20°C -10°C

0°C

+10°C +20°C +30°C +40°C

Sensor Failure
If the resistance of one air sensor ist outside the working
range, this will be shown as below:
refrigerator air sensor
freezer air sensor
Compressor : 40 min ON / 40 min OFF
A faulty evaporator sensor will not be shown to the user

Location of Balance Heater
Balance heater not replaceable
(under fridge evaporator)

Wiring to Balance Heater

Balance Heater
16 W
The balance heater is controlled by triac ACS2 on the
power board
By using phase cutting, the heater can be used at variable
power
The software will determine the power level based on
ambient temperature, and of actual demands from the 2
compartments, as measured by the air sensors
This ensures a good control at ambient tempeartures as
defined for SN/N/ST climatic class (10-38°C)
In case of heater failure, the appliance will work more or
less satisfactorily (i.e. like a conventional 1-compressor
combi) at ambient temperatures above 16°C (N/ST)

Control Limits of Balance Heater
at Different Ambient Temp.
-15
-16

Freezer Packages Temperature

-17
-18

10

-19
-20

25

-21

38

-22
-23
-24
-25

1

2

3

4

5

6

Fridge Air Temperature

7

8

9

Defrost
First defrost routine: 5 hours after power-on, or after power
reset
The following defrost routines are initiated after 14, 30 or 71
hours - depending on a series of factors: activation of fast
freezing, accumulated door opening, compressor duty cycle,
time limit reached at previous defrost
The defrost routine will start after the next compressor cutout (if the compressor continues to run for more than 2,5
hours, it will be forcibly stopped)
Fan off at 2 min after start of defrost routine
Heater on 5 min after start of defrost routine
Minimum defrost time: 20 min

Defrost
Under normal conditions, the defrost heater will be cut off by
the fixed bimetal thermostat, which opens at +8°C
After the minimum defrost time of 20 minutes has elapsed,
the electronic control starts checking if the thermostat has
opened
Once this has happened, the heater triac will also switch off
the supply to mark defrost end
Compressor start 5 min after defrost end
Fan start 3 min after compressor start

Defrost
Safety:
Temperature limit + 40°C (thermostat in series with the
other side of the heater
Time limit 60 min

Service Mode
The special functions:
forced defrost
service mode
component activation
are not accessible because of the separate bi-polar main
switch