Tradgardsteknik KX-BGC3 User manual

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0046-431 22290
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Trädgårdsteknik AB
Helsingborgsvägen 578
SE- 262 96 Ängelholm,
SWEDEN
www.tradgardsteknik.se
Operating Manual
Supermarket Refrigerator Series

____________________________________________________________________________________________
0046-431 22290
[e-mail]
Trädgårdsteknik AB
Helsingborgsvägen 578
SE- 262 96 Ängelholm,
SWEDEN
www.tradgardsteknik.se
I. Foreword
Dear customer:
Welcome and thank you for using our fan cooling supermarket display refrigerator. As a new
product with advanced international level researched and developed by the company according to
the market needs, this product fully absorbs the advantages of similar domestic and foreign
products and has the structure optimized based on the original knock-out products of the company,
so that the product is more concise and generous and can be used to sell food and decorate the
commodity section.
This series of supermarket refrigerators may be normally used under 30℃ environment
temperature and 60%RH relative humidity and is very suitable for Chinese conditions. It is the first
choice for various supermarkets, multiple shops and subsidiary food markets to display and sell
cooked food, beverage, fruit and vegetables and for the hotels and collective meal units for cold
storage and fresh-keeping of food.
With good exhibition, the supermarket refrigerator adopts cyclopentane foaming with excellent
thermal insulation performance, copper tube finned evaporator, high EER horizontal rotary unit and
single-layer multistage optimization air curtain, effectively reducing heat exchange with the outside
world, so as to guarantee high product performance and achieve significant energy saving effect!
★The main components are of well-known domestic and foreign brands and reliable performance.
★Integrated design, simple structure and convenient maintenance.
★Ultra-large capacity size, much placement space and good displayperformance.
★Single-layer multistage optimization air curtain, back air outlet technology application, quick
cooling and uniform refrigerator temperature.
★Each layer is designed with LED goods shelf light, which increases the display effect and is more
energy-saving than ordinary fluorescent lamp.
★The trim strips have many colors for choice to show different effects as needed.
★The microcomputer temperature controller may accurately control the refrigerator temperature,
defrosting and other parameters and store the food with high freshness.
For better services, please carefully read this manual before use.
II. Main structure
This series of supermarket refrigerator mainly consists of the refrigerator body, foam end plate,
evaporator, fan unit, front and top decorative parts, exhaust system, temperature control parts,
thermostatic expansion valve or capillary tube, bottom unit parts, end plate parts, shelves and other
accessories. The specific structural layout is shown in the following sectional view:

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III. Main technical parameters
Para
meter
Series
Model
Rated
power
supply
(V/Hz)
Service
power
(W)
Temperat
ure range
(℃)
Temper
ature
controll
er
model
Refrige
rant
Dimensions
(L mm W mmH mm)
Commercial
supermarket
series
KX-BGC3
220/50
1530
2~8
C401-K
X
R404a
2550*800*1910
IV. Open-box inspection
1. Check the goods received, check whether the packaging box is seriously damaged, require the
carrier to sign and approve, and timely notify the company or the company’s agent for solving.
2. Check whether the parts are damaged according to the product shipping list. For any problem,
please timely negotiate with the company or the company’s agent for solving.
3. Do not lift the refrigerator end plate and skirt board when moving the refrigerator to avoid damage.
4. Do not tread to avoid damage to the refrigerator.
5. Timely check whether the parts are loose, whether the refrigeration pipeline is damaged and
whether the electric wires and electric parts are damaged or possibly affect normal operation of the
refrigerator during installation and debugging and timely handle if any. For any problem difficult to
solve, timely notify the agent to repair.
V. Service environment and requirements
1. This series of refrigerator has the best using effect in the air conditioning environment (temperature
not higher than 30℃ and relative humidity not more than 60%). If the environment temperature
exceeds 30℃, the refrigeration effect of the refrigerator will be affected; if the ambient humidity of

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0046-431 22290
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SE- 262 96 Ängelholm,
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the refrigerator exceeds 60%, the refrigerator defrosting effect will be affected and the power
consumption in the wet conditions will be increased.
2. When the service environment exceeds 30℃ and the relative humidity is above 65%, the water
drops will accumulate and block in some exhaust air grille holes. The water in the grille may be
absorbed regularly with sponge block to keep the exhaust air grille dry.
3. The strong air flow is not allowed around the refrigerator to interfere with the refrigerator air curtain
(such as ceiling fan installed at the top of the refrigerator and the air conditioner outlet air against the
refrigerator opening). Such air flow will destroy the air curtain and directly affect the refrigerator
cooling effect. The air flow shall be kept away from heat to avoid heat radiation and hot air
interference.
4. The refrigerator shall be installed on flat, hard and dry ground to ensure that the condenser exhausts
air smoothly. The water shall be discharged regularly or the sewer pipe is connected to the sewer.

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☞Note:
To ensure good heat dissipation environment of the refrigerator, the manual is
attached with 2 sets of M8 bolts and decorative caps. Before using the refrigerator,
screw the bolt in the rear pre-positioned rivet according to the figure, ensure that the
screw outreach is no less than 140mm and finally lock the decorative cap in the screw.
Gently push the refrigerator to the using area, so that the decorate cap is slightly
against the wall.
★ Warning: Install in strict accordance with the requirements; otherwise, the
refrigeration performance will be affected!
VI. Precautions for use
1. Precautions in boot
(1) Check whether the power supply is live and whether the voltage is normal;
(2) Insert the power plug, turn on the refrigeration switch and start up after delay for 3min;
(3) Do not store goods in the refrigerator before the refrigerator temperature reaches normal
temperature.
2. Precautions in shutdown: turn off the refrigeration switch or unplug the power plug. Disconnect the
power if the refrigerator is not used for long time.
3. Ensure that the power plug of the refrigerator has reliable grounding wire. 确保陈列柜电源插头有可
靠的接地线。
4. At the initial stage of using the refrigerator, observe whether the thermostatic expansion valve or
M8 rivet
Bolt M8*150
Clockwise rotation
Decorative cap

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capillary tube is working normally. In case of ice jamming or filth blockage, eliminate immediately.
5. The goods on the high level shelves shall not block the air curtain to ensure good thermal insulation
effect of the air curtain.
6. The residue shall be timely cleaned to prevent the residue from falling into the sewer port and
blocking discharge of the defrosting water in the refrigerator.
7. There is high-speed running motor in the refrigerator. Be careful when opening the pallet. In case of
exception in the motor operation, turn off the power before maintenance.
8. To ensure the use performance and cleanliness, the supermarket refrigerator must be thoroughly
cleaned each week to remove the dirt and non-emptied water.
VII. Maintenance and repair
1. In the refrigerator maintenance, the maintenance personnel must have certain refrigeration
technology knowledge and operation skills. The refrigerator shall be specially managed to ensure
reasonable use.
2. Cut off the power before maintenance of the refrigerator.
3. The refrigerator cannot be rinsed with water directly and shall be cleaned according to the following
steps:
(1) Stop the operation of the refrigeration system according to the shutdown procedures and cut off the
power in the refrigerator;
(2) Move away the goods in the refrigerator and remove the pallet and inner seal plate;
(3) Scrub the shelves and other places to be cleaned and pay attention to drying and ventilation of the
electric parts;
(4) Install the disassembled parts in sequence, start the refrigeration system and load the goods after
the refrigerator temperature is normal.
4. Protect the evaporator during maintenance to prevent refrigerant leakage due to bump.
5. Shut down according to the shutdown method in the operating manual before removing the
compressor, expansion valve, dry filter, evaporator and other parts in the system for repair.
6. Modulator tube replacement: unscrew the water joint, take down the damaged modulator tube and
put the new modulator tube in the light base.
7. Regularly clean the unit condenser (every three months), keep the heat exchange plate clean and
ensure smooth heat dissipation. Cleaning steps: shut down first, remove the dash panel, brush the
dust along the aluminum fins and finally clean the fouling between the aluminum fins with
compressed air or water. Do not splash the water on the motor and other electrical elements.
8. The common faults and maintenance methods for this series of refrigerator are as follows:
No.
Fault phenomenon
Causes
Solutions
1
The refrigerator is
not electrified
Fuse blowing out or leakage
short-circuiter disconnected
Replace the fuse or connect the short-circuiter
2
The fan motor is
running but cannot
refrigerate
1. Refrigerant leakage
2. 2. Compressor damage
3.Unit electric appliance out of
order
4. Under defrosting
5. Other reasons in the
refrigeration system
1. Notify the maintenance department to repair
2. Notify the maintenance department to repair
3.Notify the maintenance department to repair
4.Running normally after defrosting
determination
5. Notify the maintenance department to repair
3
Fluctuation in the
1. High condensing pressure
1. Clean the condenser or repair the condenser

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refrigerator
temperature
and frequent start of compressor
2. Too low suction pressure
3. Expansion valve out of order
or capillary tube blocked
4. Te m pe r at u r e co n t r o lle r o u t of
order
5. Too large humidity
6. Air curtain interference by air
flow
motor
2.Notify the maintenance department to repair
3. Notify the maintenance department to repair
4. Notify the maintenance department to repair
5. Increase defrosting times
6. Prevent the air curtain from being intervened
by air flow
4
The refrigerator
temperature is
higher than the set
value
1. Refrigeration system fault
2. Electrical control fault
3. Too high environment
temperature
4. Too large environment
humidity
5. Air curtain interference by
surrounding strong air flow
1. Notify the maintenance department to repair
2. Notify the maintenance department to repair
3. Improve the refrigerator service environment
4.Increase defrosting times
5. Avoid strong air flow interference
5
No air curtain and
not refrigerate
1. Fan motor damaged in the
refrigerator
2. Return air inlet blocked
3. Serious frost blocking
1. Notify the maintenance department to repair
2. Move away the blocking objects
3. Forced defrosting
6
Incomplete
defrosting of
evaporator
1. Defrosting controller fault
2. Too low refrigerator
temperature setting
1.Notify the maintenance department to repair
2. Adjust the temperature controller to the set
value
7
Abnormal sound in
the refrigerator
Fan blade loose
Fasten the fan blade after shutdown
8
Refrigeration
failure or high
refrigerator
temperature
Compressor unit fault
Notify the maintenance department to repair
VIII. Electrical principle and microcomputer operating manual
(1) Electrical schematic diagram

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Microcomputer Controller Manual
Instructions for microcomputer controller C204-KX
1.1 Display description:
Display two and half digits (at most display -188) and 3 marks (refrigeration, defrosting and alarm).
1.Refrigeration mark: the indicator light on indicates that the system
enters refrigeration and the light flashing (frequency 1Hz) indicates
refrigeration output delay.
2.Alarm, indicating occurrence of alarm.
3.Defrosting mark, indicating whether the system is defrosting.
Note: The alarm icon is flashing at the rate of 2Hz when setting the parameter.
1.2 Technical parameters
Relay output: 30A, 240VAC, maximum load 25A, 240VAC, used for compressor control;
Power supply: 230VAC, 50/60Hz;
Temperature sensor 1: measure the temperature in the refrigerator;
Temperature sensor 2: measure the evaporator temperature
Temperature measurement range: -45~99℃;
Temperature measurement accuracy: ±1℃(@-30~50℃)
Power voltage: 230VAC, 50/60Hz;
Overall power consumption: less than 1.5VA;
Controller operation
FIG 1

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1.3 View the upper and lower limits of the setting temperature:
Press for 1s to view the upper limit of the setting temperature (start refrigeration if the temperature is
higher than the upper limit);
Press for 1s to view the lower limit of the setting temperature (stop refrigeration if the temperature is
below the lower limit);
Press and simultaneously for 1s to view the evaporator temperature.
Press for more than 3s to enter or exit defrosting state (unable to enter the defrosting state if the
parameter D1=0).
Press and simultaneously for more than 3s to enable or disable forced refrigeration (unable to enter
the forced refrigeration state if CC = 0).
Press and simultaneously in power-on to display that the default will be recovered. The nixie tube
displays“CF”.
2. Modify parameters
The controller parameters may be set by the keys. The parameters are classified into types A and B. A
series are common parameters and entered by pressing for 3s. Type B parameters are protected
parameters and shall be entered by pressing and simultaneously for 3s.
☆ Warning:Do not change type B parameter setting at will. Make adjustment, if required, under the
guidance of professional after-sales personnel.
2.1 Visit type A parameters
1. Press for more than 3S and the nixie tube displays the parameter code “P1”;
2 Press and to roll the parameter name;
3 Press to display corresponding parameter value;
4 Press or to increase or decrease the value;
5 Press to temporarily store the modified value and return to display parameter;
6 Repeat 2~5 to modify other parameters;
7 Press for more than 3s to store the modified parameter and exit the parameter setting procedure.
2.2 Visit typeB parameters
1.Press and simultaneously for more than 3S and the nixie tube displays the parameter code“/0”;
2 Press and to roll the parameter name;

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3 Press to display corresponding parameter value;
4 Press or to increase or decrease the value;
5 Press to temporarily store the modified value and return to display parameter;
6Repeat 2~5 to modify other parameters;
7 Press for more than 3s to store the modified parameter and exit the parameter setting procedure.
If the defrost sensor is shielded or faulty, defrosting will finish at the maximum defrosting time (parameter
dp).
Note: The parameter dt is not displayed when the parameter/2 is--.
2.3 Fault code
Alarm
code
Fault description
E1
Sensor 1 fault
E2
Sensor 2 fault
Lo
Sensor 1 low temperature
alarm
Hi
Sensor 1 high temperature
alarm
dF
Defrosting display
2.4 Parameter list
Parameter
Description
Category
Minimum
Maximum
Unit
Default
/0
Sensor measurement stability
B
1
15
-
4
/1
Offset of sensor 1
A
-5
5
oC
0
/2
Offset of sensor 2
A
-5
--
oC
--
P1
Upper limit of setting temperature
A
r1
r2
oC
4
P2
Lower limit of setting temperature
A
r1
r2
oC
0
r1
Minimum setting value
B
-40
r2
oC
-10
r2
Maximum setting temperature
B
r1
90
oC
15
r3
Operating mode
B
0
1
-
0
c0
Delay after compressor power-on
B
0
99
Min
0
c1
Minimum downtime of
compressor
B
0
99
Min
4
c2
Shortest running time of
compressor
B
0
99
Min
7
c3
Delay between two adjacent
starts
B
0
99
Min
10
c4
Compressor working time in case
of sensor fault
B
0
99
Min
15
c5
Compressor downtime in case of
sensor fault
B
1
99
Min
5
Note: In case of high
temperature alarm and low
temperature alarm, the alarm
code (Lo or Hi) and the
temperature display alternately.

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ct
Time after compressor fault
shutdown
A
10
60
Min
20
cc
Minimum running time of
compressor in forced
refrigeration
A
0
199
Min
0
c6
Alarm shielding time after
termination of forced refrigeration
A
0
199
Min
0
d1
Defrosting cycle
A
0
199
Hour
4
d2
Power-on defrosting
A
0
1
-
0
dp
Defrosting time
A
1
99
Min
15
dt
Defrosting final temperature
A
-40
90
oC
4
d6
Defrosting display
B
0
2
-
2
d8
Alarm shielding time after
defrosting
B
0
99
Min
90
dd
Water drop time
B
0
15
Min
2
A0
Overtemperature alarm
A
0
20
K
0
Ad
Alarm delay
B
0
99
Min
1
Operating manual of ECS-180neo temperature controller
1. Operation and display panel
2. Technical parameters
1) Te m p era t ur e co n tr ol ra ng e : -50℃～85℃ Temperature resolution: 0.1℃
2) Temperature measurement accuracy:±1℃ at -40℃～50℃,±2℃ at 51℃～
70℃,±3℃ for other temperatures
5) Power voltage: 220VAC±10% 50/60Hz
6) Overall power consumption: <3W
3. Indicator light status description
Indicator light
Symbol
Status
Meaning
Setting indicator
set
On
Parameter setting
Off
Measurement and control
status
Refrigeration
indicator
On
Refrigeration working
Off
Refrigeration stop
Flashing
Refrigeration delay
Defrosting
indicator
On
Defrosting working
Off
Defrosting stop

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Fan indicator
On
Fan start
Off
Fan close
Defrosting drip
indicator
drip
On
Defrosting drip start
Off
Defrosting drip finish
Door signal
indicator
On
Door switch open
Off
Door switch close
4. Key functions
4.1 Key name
Key name
Function
Set
Enter parameter setting status
Switch menu and parameter
Adjust menu and parameter
Open/close light (only effective to the model with light
controller)
Adjust menu and parameter
View the evaporator sensor temperature
Exit the parameter setting status
Forcibly switch among refrigeration, defrosting/defrosting
delay and defrosting drip if it lasts for 3s
4.2 Parameter adjustment
Press Set for 3s in the measurement and control status to enter the user menu and
display St. Press Set again to display St parameter value. Modify the setting temperature
value by operating or ; press or make keyless operation for 30s to exit the
parameter setting and automatically save the current parameter value.
4.3 Temperature view: press in the measurement and control status to view current
measured value of the evaporator sensor temperature (evaporator sensor is enabled and
normal)
4.4 Manual imperative operation
Press for 3s in the measurement and control status for forcible switch among
refrigeration, defrosting/defrosting delay and defrosting drip
Alarm code
Cause
E1
Refrigerator temperature sensor
fault
E2
Evaporator sensor fault
E3
Condenser sensor fault
cH
Condenser high temperature
alarm
rH
Refrigerator temperature high
temperature alarm
rL
Refrigerator temperature low
temperature alarm

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Alarm code
Cause
Er
Copy card programming failed
EP
Inconsistent data in the copy card
with controller model,
programming failed
IX. Warranty and service
Thanks again for selecting our supermarket refrigerator products. To protect your deserved interest
and make you assured, the company will provide you with maintenance services and technical support.
Please carefully read the following content to obtain quick and convenient services.
1 Maintenance service guide
⑴ After buying the supermarket refrigerator, check whether the physical refrigerator is consistent with the
packing list and whether the attached documents are complete. For any objection, please immediately
contact the dealer or the company.
⑵ Please properly keep the repair bill and relevant materials.
⑶ In case of fault in your supermarket refrigerator, observe and check according to the requirements in
the table in Item 6 above. The fault caused by mis operation or use or improper maintenance may be
eliminated by yourself or handled by the maintenance personnel of the company or the dealer.
⑷ If the fault in the equipment cannot be eliminated, immediately contact our maintenance service
department and we will help to solve as soon as possible.
2 Limited warranty clause
(1) “Kaixue” supermarket refrigerator is provided with free warranty for one year after the date of
purchase. The refrigerator that has been declared as disposed product at the purchase is not within
the warranty.
(2) This warranty clause applies to the mainland region of the People’s Republic of China.
(3) This warranty clause applies only to the products directly purchased by the customer from the
company or from the retailer approved by the company.
(4) The warranty bill sealed by the company or by the retailer approved by the company is the unique
voucher for warranty. If you are required by the warranty unit to provide the voucher, you should
show the warranty bill.
(5) The product that has been subject to warranty may be subject to warranty again in the remaining
warranty period or within 90 days after warranty, whichever is longer.
(6) The costs for transporting the product to the warranty unit and transporting back are not free.
(7) The product warranty is only for the quality problems caused by insufficient product quality in
improper construction and installation. The problems caused by improper transportation, installation,
use or management of the consumer and other non-product reasons are not included in the
warranty.
(8) The occurrence of the warranty time is subject to the time when the consumer notifies the company
of the product defect. The products not enjoying warranty may be repaired by the company, but the

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costs will be collected according to relevant provisions.
☆ In case of product upgrade, some parameters in the manual may be changed without further
notice. The physical product shall prevail and the company reserves the final power of
interpretation.