Dora Metal DM-92121 User manual

EN - DORA METAL
Issue 24.08.2017
USER MANUAL
STANDARD
PLUS
PREMIUM
UPRIGHT REFRIGERATORS DM-92121
DM-92122
DM-92125
DM-92224
DM-92131
DM-92132
UPRIGHT FREEZERS DM-92127
DM-92137

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2 Upright refrigerators and freezers
Information of special importance for the user’s safety and a correct operation of equipment
is marked with this sign.
Read this user manual carefully before operating the equipment.
PROPER AND SAFETY OPERATION PRINCIPLES
In order to ensure operational safety and long trouble-free operation of the
device, the following principles should be observed:
 Acquaint the operating staff with basic regulations concerning the operation of electric
equipment, rules of safe operation and first aid provision in case of emergency.
 Acquaint practically the operating staff with proper operation rules.
 It is forbidden to connect the device to the power supply system that is not previously
checked with regard to the anti-shock protection installation correctness.
 It is forbidden to connect the device to the plug-in socket without a grounding pin.
 It is forbidden to wash, clean or carry out any repairs of the device connected to the power
supply system.
 All repairs of the device can be carried out only by an authorized person, observing rules
related to the replacement of damaged parts with identical ones.
 The producer does not assume responsibility for the use of the device contrary to its purpose
or the recommendations of this user manual.
 Ensure a free airflow above the upright refrigerator or freezer. The minimum distance
between the edge of the upright refrigerator or freezer and the ceiling of the room should be
400 mm.
 In order to ensure the correct operation of the device and to obtain the parameters specified
by the producer of the upright refrigerator or freezer it is forbidden to cover the perforation in
the side part of the control panel. The producer does not guarantee the correct operation of
the device if the perforation is covered.
 The devices of the Standard Plus and Premium group may be operated only and exclusively
in a ventilated room within the range of the ambient temperatures of +16 to +40ºC and relative
air humidity of up to 40%.
 In case of the operation of the devices in the ambient conditions exceeding the
recommended ones the lowest declared operating temperature may not be achieved and the
electricity consumption may be increased.
 The devices are not designed for the operation outside the buildings and they cannot be
exposed to the direct effects of adverse weather conditions (snow, rain, sunlight).
 It is forbidden to store the devices in rooms where freezing temperatures may occur.
 After withdrawal of the device from service it should be disposed in an environmentally
responsible manner. The valid local regulations related to disposal and scrapping works
should be observed.
 It is forbidden to store explosive substances or as aerosol cans with combustible gas, e.g.
propane, butane etc., in the device. It is forbidden to store electrical appliances.
 Please keep this user manual for future use or transfer to any subsequent user.

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TABLE OF CONTENTS
PROPER AND SAFETY OPERATION PRINCIPLES . .......................................................2
TABLE OF CONTENTS .. ....................................................................................................3
PURPOSE .. ........................................................................................................................4
REFRIGERATED SYSTEM OPERATION . ........................................................................4
INTERIOR TEMPERATURE SET-UP . ...............................................................................4
START-UP PREPARATION . ..............................................................................................4
CONNECTION TO ELECTRIC SYSTEM . ..........................................................................5
OPERATION . ......................................................................................................................6
TRANSPORT . .....................................................................................................................7
DISPOSAL . .........................................................................................................................7
TECHNICAL DATA . ............................................................................................................8
Table 1. Stainless steel upright refrigerators of DM-9212x and DM-9222x series...............8
Table 2. Stainless steel upright refrigerators of DM-9213x series............………………...…8
Table 3. Upright freezers of DM-9212x and DM-9213x series.........………………..............9
WIRING DIAGRAM……………………………………….......................................................10
LAE CONTROLLER WITH BUTTONS - SERVICE INSTRUCTION...…............................14
LAE CONTROLLER WITH LCD DISPLAY AND MEMBRANE BUTTONS - SERVICE
INSTRUCTION.......................................….........................................................................15
RATING PLATE AND F-GAS LABEL …..………….............................................................16

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Upright refrigerators and freezers
PURPOSE
The devices produced by DORA METAL belong to a group of professional chilling and freezing
equipment. They are intended for short-term storage of foodstuffs at work place. The devices can be used in
restaurants, confectioners' shops, cafés, networks of stores in which it is necessary to display foodstuffs in a
chilled or frozen state allowing maintaining their taste, smell and aesthetic values.
The temperature adjustment ranges for particular types of devices are specified in the technical data.
Note: The devices are not designed for the operation outside the buildings and they cannot be
exposed to the direct effects of adverse weather conditions (snow, rain, sunlight).
The devices are not intended to store drugs, blood plasma, laboratory resources and other
substances and products specified in the directive 2007/47/CE.
The producer does not assume responsibility for any improper use of the device, contrary to its
purpose.
REFRIGERATED SYSTEM OPERATION
There is one-step, compressor’s refrigerating cycle in the device. The refrigerated system is filled with
an ecological refrigerating medium (depending on the model: R404a, R134a or R290 – data specified on the
rating plate).
INTERIOR TEMPERATURE SET-UP
An electronic temperature controller sensor is located in the rear part of the chamber ceiling. The
controller is programmed in such a manner that the device achieves an interior temperature specified in the
technical data. For the method of the required temperature set-up – see page 14 or 15 (depending on the
used controller).
START-UP PREPARATION. CLEANING AND MAINTENANCE
The first start-up and daily maintenance may be carried out by the operating personnel, provided that
the below-mentioned recommendations are strictly observed. The producer shall not take responsibility for
any operation carried out on the device without observing the recommendations specified in this user
manual.
Disconnect the device from the power supply system before starting any maintenance works.
The removal of any safety systems is forbidden.
Remove a protective foil before the first start-up. Wash external and internal surfaces with warm water
with an addition of degreasing agent, used for washing kitchen utensils, with a soft cloth in accordance with a
direction of the joint, never by circular movements. The protective foil should be removed slowly to avoid
leaving remains of adhesive. If the adhesive is left, it can be removed by means of proper non-corrosive
solvent – after this operation the surface should be washed out and dried.
In daily cleaning, use neutral soap, window cleaners or 90%-degradable liquid detergent (to minimize
amounts of contaminants disposed to the surrounding environment) and a soft cloth, always in accordance
with a direction of the joint, never by circular movements.
It is forbidden to use scouring agents, materials including steel wool that can scratch the
surface and agents containing aggressive acids. Do not use a stream of water but only a
damp cloth wipe while washing.
After washing, before connecting to the electric system, leave the device to dry completely.
When planning the location of the device there should be taken into account the space for free opening
of the doors. The devices should be moved away from the wall to ensure free air circulation through the
condenser. It is necessary to leave 40 cm of free space at least above the device and not less than 10 cm of
free space on the sides and at the back which ensures a proper air circulation for the correct operation of the
device.
Check if the floor is levelled where the device is to be located. Then, level the device, using adjusting
feet, checking whether the door is closed well at the same time.

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The device should be located away from heat sources, in a place not exposed to sunlight. The
devices are not designed for the operation outside the buildings and they cannot be exposed
to the direct effects of adverse weather conditions (snow, rain, sunlight).
In accordance with the EN378 standard it should be ensured that the room where the device
with R290 medium is to be located has the proper volume. 1 m3 is required for 8 g of R290
refrigerant. The amount of R290 refrigerating medium is specified on the rating place of the
device.
CONNECTION TO ELECTRIC SYSTEM
The construction of the device is made according to the appropriate directives and harmonised
standards:
- low voltage directive 2006/95/EC,
- electromagnetic compatibility directive 2004/108/EC,
- PN-EN 60335-2-89:2012, PN-EN 60335-1:2012 standards,
- PN-EN 55014-1:2012, PN-EN-55014-2:1999 standards,
- PN-EN 61000-3-2:2007, PN-EN 61000-3-3:2009 standards.
The device is adapted to be supplied from the 230V 50Hz line and should be supplied from a separate
low voltage circuit. A grounded plug-in socket must be equipped with anti-shock protection selected,
according to the requirements of local standards and regulations, in compliance with the parameters
specified on the rating plate. The parameters of a residual current device should be selected according to the
current value, specified on the rating plate. The devices are provided with a flexible power supply cable of
HO5VV-F type (3x1,5mm², including protective conductor). The damaged power supply cable should be
replaced by a specialist from technical service or by a skilled person with appropriate qualifications.
The devices are equipped with a terminal to connect external equipotential bonding, marked by a
symbol . Before connecting the device the installation correctness and effectiveness of equipotential
bonding operation should be checked in accordance with PN-IEC-60364-4-41.
The device can be started when effectiveness of anti-shock protection is confirmed by
results of measurements carried out according to the regulations in force.
The device can be connected to the electric system when it is stated that the electric system fulfils the
afore-mentioned requirements. The device is connected by inserting a plug of connecting cable into the plug-
in socket. A device, prepared in such a way, is ready to operate.
Because during transport the device could be inclined by more than 30  from the vertical,
wait about 3  4 hours before connecting the device to the power supply system. Otherwise,
the condensing unit can be damaged.

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Upright refrigerators and freezers
OPERATION
The temperature of chilled space and operating cycle of the refrigeration unit can vary. It depends on
the ambient temperature, amounts of inserted fresh products and heat inflow from outside. Therefore it is
necessary to avoid opening the door when unnecessary and inserting warm foodstuffs with temperatures
that significantly exceed the storage temperatures. Otherwise, it can considerably increase the chilling time
of products.
It is recommended to avoid a long contact of the skin with cold surfaces of the device or cold products.
The protective clothing should be used in case of longer contact. The failure to use the protective clothing
can cause torpidity or frostbite.
During operation of the device, observe the rule that the maximum load does not exceed the values
specified in the table and the red symbol in the device chamber. The products should be arranged in such a
manner to allow free air circulation in the upright refrigerator or freezer.
The first filling of the refrigerated space should be done after cooling it earlier to the
operating temperature (the required time for the first cooling of the unloaded upright
refrigerator or freezer to the set-up temperature: ~ 2h). This rule should be observed also after
a longer break in operation.
From time to time it is recommended to stop the operation of the device to clean its interior, defrost
naturally the evaporator unit, clean the condenser of the refrigeration unit and check the condition of the door
seal. A face heated by electric heater protects the seal against freezing in the freezing devices.
Any replacement of the seal consists in removing the old seal and pushing the new one in the groove of
the profile.
Before performing the afore-mentioned steps, it is necessary to switch off the device by means of a
main switch and remove the plug of connecting cable from the plug-in socket.
The condenser of the refrigeration unit should be cleaned not rarely than every 4 weeks. It should be
cleaned by means of a soft brush or vacuum cleaner.
Do not use a stream of water while cleaning the device. The producer does not assume
responsibility for the damages of the condensing unit arisen as a result of not maintaining the
condenser in a clean state!
The icing of the evaporator is removed automatically. The most frequent reason for the excessive icing
of the evaporator is the failure to observe the procedure of the pre-cooling of a product before placing it in
the freezing device.
All setups of the controller necessary for a normal function of the device are introduced by the producer.
It is strictly forbidden to intervene in the system parameters of the controller because it may
cause very serious consequences, including damage of the goods and refrigerated device. In
case of the breakdown the goods stored in the device should be protected against damage.
Dora Metal does not assume responsibility for the goods damaged as a result of the
breakdown of the device.
The devices are provided with an automatic condensate evaporation system. The condensate in the
engine room is evaporated by means of electric heater.

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TRANSPORT
The producer delivers the device in the crated, protected with cardboard angles and foil. During the
transport the device should be protected against moving.
The device should be transported in an operation position. Upon receipt of the device (before
unpacking) it is necessary to check if any damages did not arise during the transport. All noticed damages
should be immediately notified to the forwarder. In no case, a damaged device can be returned to its
producer, without notification, and without a written permit, received earlier from the producer.
The producer does not assume responsibility for the device that is damaged during the
transport.
In order to avoid any damage the device should be unpacked by 2 persons at least.
DISPOSAL
Prior to the transport the device is protected by a packing crate which consists of the following
recyclable elements: wooden planks, cardboards, propylene fastening tapes, polyethylene foil.
The elements of the device packaging should be kept out of reach of children.
After withdrawal of the device from service it cannot be mixed with other household waste. Before
handing over the device to disposal it is necessary:
- to protect the device by disconnecting the power supply cable,
- to check the tightness of the refrigerated system.
The valid local regulations related to disposal and scrapping works should be observed.

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Upright refrigerators and freezers
TECHNICAL DATA
Table 1. Stainless steel upright refrigerators of DM-9212x and DM-9222x series
Data Catalogue number
DM-92121 DM-92125 DM-92224 DM-92122
Depth mm 836
Width mm 744
Height mm 2065
Number of doors pcs 1
Type of doors Solid doors Glass doors
Capacity (gross) litre 610
Permissible loading kg 150
Surface of shelf m2 0,34
Number of shelves pcs 3
Max. loading of shelf kg 35
Arrangeability of shelves mm spacing every 50mm
Air circulation Forced (fan) circulation
Interior temperature O C -2...+10 +2...+10
Power supply V/Hz 230 / 50
Power rating
Data specified on the rating plate Climatic class
Type of refrigeration unit
Type of refrigerant - R134a / R290
Amount of refrigerant kg 0,25 / 0,08
GWP / ODP - for R134a=1430/0 , for R290=3/0
Equivalent CO2 t for R134a=0,36, for R290=not applicable
Table 2. Stainless steel upright refrigerators of DM- 9213x series
Data Catalogue number
DM-92131 DM-92132
Depth mm 869
Width mm 714
Height mm 2065
Number of doors pcs 1
Type of doors Solid doors Glass doors
Capacity (gross) litre 520
Permissible loading kg 150
Surface of shelf m2 0,34
Number of levels pcs 3
Max. loading of shelf kg 30
Arrangeability of shelves mm spacing every 55mm
Air circulation Forced (fan) circulation
Interior temperature O C -2...+10 +2...+10
Power supply V/Hz 230 / 50
Power rating
Data specified on the rating plate Climatic class
Type of refrigeration unit
Type of refrigerant - R134a / R290
Amount of refrigerant kg 0,25 / 0,08
GWP / ODP - for R134a=1430/0 , for R290=3/0
Equivalent CO2 t for R134a=0,36, for R290=not applicable

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Table 3. Upright freezers of DM-9212x and DM-9213x series
Data Catalogue number
DM-92127 DM-93137
Depth mm 836 869
Width mm 744 714
Height mm 2065
Number of doors pcs 1
Type of doors Solid doors
Capacity (gross) litre 610 520
Permissible loading kg 150
Surface of shelf m2 0,34
Number of shelves pcs 3
Max. loading of shelf kg 35 30
Arrangeability of shelves mm 50 55
Door switch Yes + acoustic alarm
Air circulation Forced (fan) circulation
Interior temperature O C -14...-22
Power supply V/Hz 230 / 50
Power rating
Data specified on the rating plate Climatic class
Type of refrigeration unit
Type of refrigerant - R404A / R290
Amount of refrigerant kg 0,40 / 0,13
GWP / ODP - for R134a=1430/0 , for R290=3/0
Equivalent CO2 t for R134a=0,57, for R290=not applicable

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Upright refrigerators and freezers
WIRING DIAGRAM FOR PRODUCTS: DM-92121 (standard version), DM-92122 (standard version), DM-92125
(standard version), DM-92224 (standard version), DM-92131 (optional version), DM-92132 (optional version) –
with LAE AT2-5BQ4E-AG(ST) traditional controller provided with buttons
Z1
Solenoid valve
W1
Bunch 1
T
LED power supply unit - OPTION
0
LED lighting - OPTION
W 2 Bunch 2
Y
Monobloc
S3
Door switch
S2
Rocker switch
S1 Controller
M3
Condenser fan
M2
Compressor
M1
Cooler fan
E1
Defreezing heater
B2
Evaporator temperature sensor
B1
Chamber temperature sensor

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Explanation:
WIRING DIAGRAM FOR PRODUCTS: DM-92127 (standard version), DM-92137 (optional version) – with LAE
AT2-5BQ4E-AG (ST) traditional controller provided with buttons
Z1
Solenoid valve
W1
Bunch 1
T
LED power supply unit
0
LED lighting
W 2
Bunch 2
Y
Monobloc
S3
Door switch
S2
Rocker switch
S1
Controller
M3
Condenser fan
M2
Compressor
M1
Cooler fan
E1 Defreezing heater
E2 Heating cable 50W 4.38
B2
Evaporator temperature sensor
B1
Chamber temperature sensor

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Upright refrigerators and freezers
Explanation
WIRING DIAGRAM FOR PRODUCTS: DM-92121 (optional version), DM-92122 (optional version), DM-92125 (optional
version), DM-92224 (optional version), DM-92131 (standard version), DM-92132 (standard version) – BD1-28C1S5W-B
actuator module + membrane panel with LCD (SM) display
Explanation:
E1 Defreezing heater
Z1 Solenoid valve
W 1 Bunch 1
T LED power supply unit
0 LED lighting
W2 Bunch 2 - SOCKET - CONTROLLER
Y Monobloc
S3 Door switch
S12 LCD display
S11 Controller
M3 Condenser fan
M2 Compressor
M1 Cooler fan
B2 Evaporator temperature sensor
B1 Chamber temperature sensor

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WIRING DIAGRAM FOR PRODUCTS: DM-92127 (optional version), DM-92137 (standard version) – BD1-28C1S5W-B
actuator module + membrane panel with LCD (SM) display
E1 Defreezing heater
Z1 Solenoid valve
W 1 Bunch 1
T LED power supply unit
0 LED lighting
W2 Bunch 2 - SOCKET - CONTROLLER
Y Monobloc
S3 Door switch
S12 LCD display
S11 Controller
M3 Condenser fan
M2 Compressor
M1 Cooler fan
E2 Heating cable
B2 Evaporator temperature sensor
B1 Chamber temperature sensor

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Upright refrigerators and freezers
Explanation:
LAE CONTROLLER WITH BUTTONS - SERVICE INSTRUCTION
Basic operation
The power supply is turned on by means of a rocker switch located on the control panel of the device or by pressing the button
of the controller. The switching condition is signalled by the values of the air temperature in the chamber appeared on the controller’s
display.
In order to display and modify the required temperature of the chamber:
 Press and hold the button for half a second to display a current
programmed temperature value.
 Press and hold the button then:
 Press the button to increase the temperature value.
 Press the button to decrease the temperature value.
 After release of the button the newly programmed value is stored.
Since then the controller will start running a new programme.
 Defreezing (defrosting):
During operation of the device the message “dEF” appears on the display at regular intervals, this means that the device operates in the
defreezing mode of the cooler. The defreezing cycle and its duration are determined by the producer of the device and user does not
affect this parameter. If due to the difficult operating conditions of the device the additional defreezing of the cooler is needed, press and
hold the button for 2 seconds. The message “dEF” will appear on the display. The defreezing process will stop automatically after
reaching the time or temperature programmed by the producer.
 Alarms:
The meaning of messages that can appear on the display:
E1 - Chamber temperature sensor damaged. The controller will start the device in a time cycle according to the times programmed by
the producer. Defreezing will function normally. Call the service in order to remove the defect.
E2 - Evaporator temperature sensor damaged. The controller will not run the automatic cycle and manual defreezing. In such a case
the only possibility of defreezing the cooler is turn off the device and wait for the natural ice melting on the cooler. Call the service
in order to remove the defect.
dEF - Defreezing cycle activated (see section: Defreezing)
REC - Evaporator drainage after defreezing process
CL - Warning: condenser must be cleaned
Note! Message CL
Clean the condenser, see: page 6 – section: Operation. After cleaning of the condenser follow the below instruction.
In order to turn off the alarm CL reminding that the condenser must be cleaned (every 4 weeks):
- press the button until the display shows the message CND,
- then holding the button , press the button .
After these steps the parameter CND is zeroed and the cycle is set up to the beginning.
NOTE! Keypad lock
The most common mistake made by the users involves locking the keypad unintentionally resulting in lack of access to the
controller menu. The non-verification of the locking option setup results in sending the controller back to the distributor as ‘damaged’.
The keypad lock allows avoiding the undesirable and potentially dangerous tampering if the controller is installed in an easily accessible
place. In the menu INFO, set the parameter LOC=YES in order to turn on the keypad lock. In order to resume the operation of the
keypad, set the parameter LOC in the value NO.
In order to unlock the keypad
- press the button until the display shows the message LOC,
- then holding the button , press the button .
- in order to exit this menu, press the button or wait 10 seconds.
Switching the device into the mode ECO
The operation of the device can be quickly changed into the mode ECO (switching the device into alternative
setups). The mode ECO functions most effectively under proper operating conditions of the device (i.e. low door opening
frequency, putting products pre-refrigerated or frozen to the chamber). Under such conditions the function ECO allows
saving a part of energy in relation to the operation with the basic settings. In order to switch between the standard mode

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and the mode ECO, press and hold the button for 2 seconds. The activation of the mode ECO is signalled by the
proper lamp lit on the controller screen.

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Upright refrigerators and freezers
LAE CONTROLLER WITH LCD DISPLAY AND MEMBRANE BUTTONS - SERVICE INSTRUCTION
LCD-DISPLAY DU00-02
Description of symbols:
Description of diode indicators:
LED indicators
Buttons
Active thermostat relay (cooling is turned on) Information/setup display button
Active fan relay (fan is turned on) Setup value decrease
Active electric heater relay (defrosting is
turned on)
Setup value increase
Active 2. (alternative) set of operating
parameters
On/off (stand-by) button
Alarm Manual start of 2. (alternative) set of
operating parameters
Locked keypad Manual start of defrosting
Basic operation
The power supply is turned on by pressing and holding the button for 5 seconds on the control panel. The switching
condition is signalled by a short acoustic signal and graphically - showing the current value of the air temperature in the chamber on the
display LCD.
In order to display and modify the required temperature of the chamber:
 Press the button to increase the required temperature of the chamber.
 Press the button to decrease the required temperature of the chamber.
 After setting of the temperature press the button or wait for 5 secunds – ten the required temperature is stored and the
display returns to the current temperature in the upright refrigerator of freezer.
The power supply is turned off by pressing and holding the button for 5 seconds on the control panel.
Mode ECO
The advanced controller used in the device detects automatically the operating conditions of the mode ECO.
When the proper conditions are detected the controller switches the device automatically in the mode ECO. Under such
conditions the function ECO allows saving a part of energy in relation to the operation in the basic mode.
Note! Message CL
Clean the condenser. After cleaning follow the below instruction.
In order to turn off the alarm CL reminding that the condenser must be cleaned (every 4 weeks):
- press the button until the display shows the message CND,
- hold the buttons and at the same time.
After these steps the parameter CND is zeroed and the cycle is set up to the beginning.

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RATING PLATE
F-GAS LABEL
NOTE: CONTAINS FLUORINATED GREENHOUSE GASES
Appliance/product containing or dependent on fluorinated greenhouse gases
According to (EU) No. 517/2014 and (EU) No. 2015/2068
Refrigerant:
see table
GWP / ODP
see table
Amount of refrigerant filled in factory:
see table
Equivalent CO
2
:
see t
able
Amount of refrigerant added: kg Equivalent CO2: t
Total amount of refrigerant in circulation:
kg
Equivalent CO
2
:
t
Device hermitically sealed
YES
Hazard statements
H280: Contains gas under pressure; may explode if heated.
H314: Causes severe skin burns and eye damage.
Precautionary statements
P273: Avoid release to the environment.
P403: Store in a well ventilated place.
P502: Dispose of contents to the Foundation for Climate Protection (PROZON)
Rated voltage
Current frequency
Rated current
Max. lighting power
Heating system power
Factory number/year of
production
Mass
Climatic class
Type of refrigeration unit
Refrigerant
Name and type of product
Place for product
designation
Data concerning the producer
Temperature range
Refrigerant mass

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DORA METAL Sp. z o.o.
Chodzieska 27
64-700 Czarnków
Phone: [phone]
Fax: [phone]
http://www.dora-metal.pl
E-mail: [e-mail]
[e-mail]
service, mobile [phone]
Information included in this document may be changed by DORA METAL without prior notification of the user. Any part of this
document may not be reproduced or disseminate in any form or by any means without written permit of DORA METAL
Copyrights © 2017 by DORA METAL Sp. z o.o.
All rights reserved