freor MERCURY User manual

OPERATION MANUAL
MULTIDECK
MERCURY

Table of contents
1. GENERAL INSTRUCTIONS ......................................................................... 4
1.1. Sender information ........................................................................... 4
1.2. Dimensions ...................................................................................... 6
1.3. Packaging and its dismounting........................................................... 7
1.4. Rules for operating R290-based refrigeration cabinets........................ 11
1.5. Conditions for use and ambient temperature ..................................... 11
1.6. Intended use.................................................................................. 12
1.7. Unpacking and use ......................................................................... 12
1.8. Requirements for setting down the multideck.................................... 13
2. UPLOADING LEVEL................................................................................. 14
3. ACCESS TO THE FAN UNIT IN THE EVENT OF FAILURE ............................. 15
4. SERVICE OF EVAPORATOR...................................................................... 16
5. SERVICE OF THE COMPRESSOR AND CONDENSER.................................... 19
6. CONNECTION OF THE POWER SUPPLY .................................................... 20
7. GENERAL INSTRUCTIONS FOR OPERATION ............................................. 20
7.1. Requirements for proper operation................................................... 20
7.2. Operation....................................................................................... 21
7.3. Safe operation................................................................................ 21
8. DRAINAGE............................................................................................. 22
9. INFORMATION ABOUT MAINTENANCE OF THE MULTIDECK....................... 22
9.1. Information on temperatures ........................................................... 22
9.2. Shelves/brackets (hooks) of the multideck ........................................ 22
9.3. Maintenance .................................................................................. 22
9.4. Defrosting...................................................................................... 22
9.5. Cleaning ........................................................................................ 23
9.6. Regular maintenance: ..................................................................... 23
9.7. Sanitary day................................................................................... 24

10. ENERGY SAVING .................................................................................... 24
11. DISPOSAL.............................................................................................. 24
12. STORAGE .............................................................................................. 25
13. TRANSPORTATION................................................................................. 25
14. TESTING ............................................................................................... 25
15. ACCESSORIES........................................................................................ 25
16. TECHNICAL DATA .................................................................................. 26
16.1.Electrical layouts............................................................................. 26
16.2.Failures and troubleshooting ............................................................ 26
16.3.Possible causes .............................................................................. 27
17. MEANINGS OF SYMBOLS......................................................................... 29

4
1. GENERAL INSTRUCTIONS
1.1. Sender information
Manufacturer,
address
FREOR LT, UAB
Katiliskiu St. 92, LT - 02212 Vilnius, Lithuania
T: [phone]
EN
Made in Lithuania
Customer
Installation date
Installation place
Start of the
product operation
[PLACE FOR PRODUCT LABEL]

5
The commercial multideck Mercury can be identified by its labeling sticker with
technical data. The labeling sticker is attached to the inner ceiling of the right corner.
The labeling sticker contains the following information: the model, voltage and the
product number. Before starting any work on the multideck it is necessary to check
this labeling sticker (Fig. 1.).
Labeling table
Fig. 1. Example of the labelling sticker
•The instructions are intended for maintaining and operating the multideck
Mercury. The unit is equipped in according to the client’s specifications.
•According to the EU Directive and that of the Republic of Lithuania, the
refrigeration units are electrical refrigeration machines; therefore, the focus is
put on safety during operation.
•The operation manual of the multideck Mercury must be kept at the place of
operation. It must be available to technical staff, service personnel and repair
specialists at any time.

6
1.2. Dimensions
Fig. 2. Dimensions of Mercury Fig. 3. Dimensions of Mercury Flower

7
1.3. Packaging and its dismounting
Fig. 4. Mercury 2500 package dimensions
Fig. 5. Mercury 1880 package dimensions

8
Fig. 6. Mercury 1250 package dimensions
Fig. 7. Mercury 940 package dimensions

9
Unload the
multideck;
Unscrew the self-
tapping screws from
side dust covers.
Self-tapping screws
M4,2x13 ISO 7380;
Lift and remove the
side dust covers;
x 2
Size 10
15 min

10
Unscrew the screws
from the pallet,
remove the
brackets;
Remove the unit
from pallet;
After unloading
return the dust
covers to it’s initial
position and tighten
it with the self-
tapping screws
M4,2x13 ISO 7380;

11
1.4. Rules for operating R290-based refrigeration cabinets
According to the standard DIN EN 378-1, the refrigerant R290 (propane gas) is
assigned to the group of A3 refrigerants (flammable and explosive). Within the limits
of a certain area, the refrigerant together with the air and respective ignition power
(source of ignition) can cause an exothermic reaction.
Ventilation openings at the front and rear sides of the unit must be free. To avoid
disturbance of air circulation, make sure to maintain the minimum distance between
the bordering walls and other units. Otherwise, in the event of leakage of the
refrigeration system, a mixture of flammable gases and air can occur.
Cover the ventilation opening with a protective cover of the unit (accessory) because
they overlap. Otherwise, in the event of leakage of the refrigeration system, a mixture
of flammable gases and air can occur.
Do not damage the cooling coil of the unit: dangerous due to the escaped and
unexpectedly ignited a mixture of gas and air.
Only the manufacturer’s approved electrical devices may be used for shelves of food
products.
The opening of the refrigerant circuit and pumping of the refrigerant are allowed only
in the well-ventilated rooms or outdoors. Only qualified maintenance personnel who
are trained to work with flammable refrigerants may perform the work related to it.
When properly disposing of the unit, pay attention that the flammable refrigerant
R290 (propane) and the thermal insulation material, polyurethane foam, would be
disposed of in a safe and environmentally friendly manner.
1.5. Conditions for use and ambient temperature
The multideck must be operated under suitable ambient conditions (climate class 3):
•Ambient temperature +25°C
•Relative humidity 60%
•Front airflow rates up to 0.2 m/s
Higher temperatures can affect the operation of the multideck. Excess humidity
affects the dew point parameters. Strong front airflow can damage the internal
circulation of the open multideck.
The multideck is equipped with shelves, the maximum allowable loads of which are
specified in the main layout. It is forbidden to exceed the indicated maximum loads.
Products may not cover the air circulation channels.

12
1.6. Intended use
The multideck Mercury is intended to be used for the display of chilled products.
Mercury is provided for maintaining of average temperature (0...+10°C) in the inner
space of the multideck.
It is forbidden to upload the multideck with warm products with a higher temperature
than that of the multideck. The temperature of the uploaded products is set by
standards that are constantly updated by the respective organizations. The
temperatures of upload products provided below are based on DIN10508
requirements:
≤+10 оC
Fruits, vegetables, butter, cheese and cheese products
≤+8 оC
Products of pasteurized, sour milk
≤+7 оC
Milk and dairy products, delicacies, ready-made food, snacks,
sandwiches, green salad, game, salad with mayonnaise sauce,
cooked meat products, eggs and their products, sauces
≤+4 оC
Household poultry, minced meat and products, rabbit meat, wild hare
meat
≤+3 оC
By-products
≤+2 оC
Pre-packed minced meat, fresh fish (on ice)
Mercury cabinet must be protected against external mechanical damage. The shelf
load may not exceed the set values.
In the event of the use for unintended purpose the manufacturer will be exempted
from warranty obligations.
1.7. Unpacking and use
To protect the equipment from damage, it may be transported and kept only in the
use condition. Before and during unpacking of the device, perform the inspection
control to determine possible transportation damage. Pay attention whether there
are no loose parts, curvatures, scratches, noticeable fluid leaks, etc. Inform
immediately FREOR LT sales department or an official partner of FREOR LT about
possible violations before starting operation. Before disposing of the packaging
material, you should check that there are no unconfirmed functional parts.

13
1.8. Requirements for setting down the multideck
When setting down the unit pay attention to the following issues:
•The unit must be aligned horizontally in all directions (depth, length) and set
down stably.
•At the place of the setting down, avoid draughts and higher heat. Do not set
down the equipment in front of heating radiators, heaters and near air outlets.
•Do not direct the heat sources or spot radiators (such as incandescent lamps)
to the unit. Any heat emitted to the unit increases operating costs and may
affect the power of the unit.
•Promotional posters that are only in the form of a thin film may be attached to
the multideck. Do not attach them to ventilation openings (air grids),
temperature indicators, safety instructions, and performance data tables.
Fig. 8. Unsuitable ambient conditions

14
2. UPLOADING LEVEL
Mercury multideck is equipped with shelves, the maximum allowable loads which are
specified in the main layout sticker (Fig. 9.). The sticker is attached to right corner
of inner ceiling. It is forbidden to exceed the indicated maximum loads.
Fig. 9. Example of the principle layout

15
3. ACCESS TO THE FAN UNIT IN THE EVENT OF FAILURE
x 2
15 min
Remove the lower
hooked shelve for
easier access;
Remove the bottom
shelves;
Remove the air
intake grids;

16
Unscrew the self-
tapping screws from
fan. Remove the
fan. Self-tapping
screws M4, 2x13
DIN 968
4. SERVICE OF EVAPORATOR
Remove the lower
hooked shelve for
easier access;
Remove the bottom
shelves;

17
Unscrew the self-
cutting screws
M4.2x13 ISO 7380
holding the service
cover ;
Note: If full
access to
evaporator is
needed, see next
steps:
Remove the bottom
shelve rail;
Unscrew the self-
cutting screws
M4.2x13 ISO 7380
holding the fan unit;

18
Disconnect electrical
wires of the fan and
remove the fan
unit;
Remove the
evaporator cover.
Now evaporator can
be accessed;

19
5. SERVICE OF THE COMPRESSOR AND CONDENSER
Size 10
Unscrew the front
dust cover, lift it and
remove it. Self-
cutting screws
M4,2x13 ISO 7380;
Unscrew the front
screws of the base
holding the base
frame and the
multideck structure.
The screw M6x16
DIN933.
Remove the base of
the unit out of the
front of the
multideck using
mounted rails.

20
6. CONNECTION OF THE POWER SUPPLY
The main power supply parameters:
1. Nominal voltage: ~400V/50Hz/3ph
2. Protection switch: 16A
7. GENERAL INSTRUCTIONS FOR OPERATION
7.1. Requirements for proper operation
•A responsible person must be appointed to monitor the functionality of the
multideck, to record accidents, to train personnel on how to use the multideck
by intended use.
•The multideck is intended for the display of chilled products but not for their
chilling.
•The multideck must be installed on premises with the ambient temperature up
to +25°C and relative humidity up to 60%. Temperature changes impact the
performance of the multideck. Excess humidity in the premise can cause the
occurrence of condensate on cold surfaces of the multideck.
•The multideck must be protected against exposure to sunlight. The minimum
distance to the heat-transmitting devices is 3.5 m.
•The airflow of the ventilation systems may not be directed towards the
multideck.
•If you notice the failure of the multideck, stop its operation. Unload products
into the refrigeration storage chamber. Switch off the power supply to the
multideck.
INSTRUCTIONS
It is necessary to regard and follow the requirements of the local power supply
company in force in the respective region and the nationally valid and applicable
standards as well as safety rules!
The network voltage and frequency must match the nominal values indicated on
the operating data table of the unit!