RAPA RCh-O User manual

1
TRANSLATED FROM
ORIGINAL USER
MANUAL
MODULAR MULTIDECK
REFRIGERATED DISPLAY
RCh-O / RCh-SR
11
/2021
EN

Table of contents
1. Application and device code meaning 4
2. Product characteristics 5
3. Cooling system diagram 5
4. Wiring system 5
5. Wiring system diagram 6
6. Drawings 7
7. Positioning, start-up and operation 9
8. Maintenance 10
9. Transport and equipment 11
10. Temperature controller manual 11
11. Interferences 15
12. Notes 15

3
Please read this user manual carefully before using the device
and keep it for future reference.
Following the manual's recommendations guarantees long-lasting and
failure-free exploitation of the device .
IT IS FORBIDDEN
1. Make repairs on your own and fail to comply with the rules contained in
this manual regarding the connection and operation of the device;
2. Store substances that may explode in the device, such as aerosols
filled with combustible propellants;
3. Place the device in the sun;
4. Covering the inlet and outlet of air from the aggregate;
5. Switching the device on to the mains without a properly
functioning protective circuit system;
6. Use of extension cords and dividers to connect power.
7. Connect the devices to the power socket without the protective pin.
8. Use devices/objects that could cause an electric spark inside
the device and in the aggregate chamber.
WARNING !
1. Incorrect connecting of the device to the mains may result in an
electric shock.
2. In the event of sparks or breakdowns, immediately disconnect the
device from the power supply by pulling the plug from the socket and
calling an authorized service technician.
3. Efficiency of the protective circuit of the electrical system should be
checked by an authorized electrician.
4. It is necessary to protect the wiring system and control system
against water and mechanical damage.
5. When servicing and replacing parts, the device must be
disconnected from the power supply.
CAUTION !
1. Before cleaning the condenser – switch the device off!
2. When cleaning the condenser, do not use tools/objects that could
cause an electric spark.
3. Water condensation on glass panes and sheets at high relative
humidity (over 60%) is a natural phenomenon. Long-term and frequent
occurrence of dewing indicates inadequate ambient conditions and is
not a basis for calling the service!
4. Take care when removing the glass elements.
Breaking the glass panes can cause injury!
The device is not intended for household use.
The device is not intended for outdoor use.

1. APPLICATION AND DEVICE CODE MEANING
The multideck refrigerated display is stationary-type device intended for storing and
displaying food products (previously cooled) at a reduced temperature.
Device code meaning
Example of device code:
RCh-SR / 196 / 70
RCh – type of the device: multideck refrigerated display
O– model: open (without door, with night blind)
SR – model: sliding doors
196 / 70 – device dimensions (see table in p. 2)
Important information on the rating label of each device:
In the case of contact with the service
department, prepare the following data for
efficient service:
>device type,
>serial no.
Climatic class means the maximum ambient
temperature at which the device works without
disturbances.
Climatic class 3
>
maximum permissible ambient temperature of
+25°C,
>
temperature test:
ambient temperature +25°C ± 1°C
relative humidity 60% ±3%
Name, logo and device type
Device technical parameters
Manufacturer contact details

2. PRODUCT CHARACTERISTICS
>rated voltage: 230V~ / 50Hz
>refrigerant: HFC-452A; ODP = 0, GWP = 2140
>operating temperature: +2°C ÷ +10°C
>sound pressure level: <70dB (A)
Device / module*
width
[mm]
Device
depth
[mm]
Usable depth of
the device
[mm]
Usable width / depth
of shelves
[mm]
Usable exposition
area
[m
2
]
LED power
[W]
1330 / 1250 700 435 1220 / 342 2,23 20
1960 / 1880 930 / 342 3,36 25
* - refers to module dimensions (without glass sides – sides additionally 75mm)
3. COOLING SYSTEM DIAGRAM
4. WIRING SYSTEM
1. The device is equipped with the protective PE cable.
2. Before connecting the device to the power supply, check the compatibility of the mains
voltage with the device supplying voltage (data on the plate).
3. Connecting the device to the mains socket should be made so that the plug of the
connecting cable is visible and easily accessible for the service.
4. The device should be connected to a separate, properly made electrical circuit protected
by a fuse no greater than 16 A with a B-characteristic, ended with a socket with a
protective pin (for model RCh-SR / 125, 133 – not stronger than 10A)
5. The device may be started only after confirming the effectiveness of the shock protection
with the results of measurements carried out in accordance with the applicable
regulations.
6. Before carrying out any maintenance or cleaning, turn off the device with the switch and
then remove the plug from the mains socket.
7. The device is started after connecting the plug to the mains socket, and then by turning
on the switch. The backlight of the switch indicates that the device has been turned on.
8. Any repair of electrical installation and replacement of the connection cable (only into
original one available from the manufacturer) may be carried out by an authorized
electrician only.
evaporator
capillary chemical filter-dryer
condenser
compressor

5. WIRING SYSTEM DIAGRAM
1
–
electronic temperature controller
2
–
compressor
3 – thermal protection 4 – starting relay
5 – starting capacitor 6 – run capacitor
7 – compressor’s electric node 8 – condenser fan
9 – case of evaporator fans 10 – evaporator fans
11 – main switch 12 – lighting switch
Fig. 1
Electric dia
gram for RCh
-
O/125, 188 and RCh
-
SR/188
Fig.
2
Electric diagram for
RCh
-
SR/125

6. DRAWINGS
Fig. 3
Fig. 5 Cross-section RCh-SR
Access to defrost water
collection container
Aggregate covering grid
Main switch
Lighting switch
Elec
tronic temperature
controller
Fig. 4 Cross-section RCh-O
sliding doors
night blind
shelf support
air duct
insulation
bottom
fan
compressor
LED lighting
shelf
shelf edge strip
night blind hook (finished with a wood-like
board - a hole for fixing the night blind)
evaporator
condenser
adjustable leg
min. 10 mm

Fig. 6 Permissible load on the crossbar
Maximum load of the crossbar, spread evenly over the whole length – 40 kg but
maximum load of one hook – 10 kg. It is allowed to install only three crossbars
one below the other.
It is possible to install crossbar closer to the back.
Only one crossbar is allowed to install on this type of bracket.
Screw the crossbar together with brackets.

7. POSITIONING, START-UP AND OPERATION
To ensure correct operation, the multideck refrigerated display should be placed in an
area with a good air circulation, away from sources of heat and sunlight, free from dust
(the device is not dustproof). Do not cover the air inlet and outlet of the cooling unit.
Place the device vertically and connect it to the electrical power supply according to the
guidelines in p. 4 “Wiring system”.
Actions before start-up
Place the device in the required location and make sure all the feet are fully screwed
(almost as far as they can go). Then unscrew the feet and, using a level, adjust legs
until the device is leveled. The device is equipped with a perforated night blind that must
be lowered when the products are not exposed to reduce the power consumption. The
night blind should be unrolled to the level of the upper edge of the ventilation grille,
where there is a hook / hole for fixing it.
Fig. 7 Installation and dimensions of crossbars
crossbar with „S”
hooks
cascade formed from two
crossbars with “S” hooks
crossbar with „szpic”
hooks

Start-up and beginning operation
The cooling unit and lighting are switched on and off using the switches shown in Fig 3.
The temperature inside is adjusted by the temperature controller, according to the
instructions in p. 10. After switching the device on, leave it empty until it turns off for the
first time. Now it is ready to be filled with products. The condensate container should be
emptied as needed.
Place the products on the shelves so that they do not protrude behind the shelf contour
– this is necessary to ensure proper air circulation inside (Fig 4). The maximum shelf
load is 30 kg.
Never put warm/hot products in the device because this causes an extended
temperature increase inside the device and can even create a fault. A temperature
increases after filling the multideck refrigerated display with warm/hot products is not
evidence of a failure and does not constitute a basis for submitting a claim.
8. MAINTENANCE
After disconnecting the device from power supply, the general maintenance should be
done by the user, as follows:
1. washing with water of the temperature not more than +40°C with addition of natural
cleaning agents. To wash and clean the device it is forbidden to use agents
containing of chlorine and sodium of various varieties, which destroy the
protective layer and components of the device! Any residual glue or silicone on
the metal parts of the device should be removed only with gasoline (not applicable to
plastic components!). Do not use other organic solvents.
2. removing impurities from the condenser by means of vacuum cleaner (from up to
down - along the fins) at least once a month so that the flow of the cooling air
through the condenser fins is not hampered.
Not following the above instructions causes increased energy consumption,
decreased refrigeration efficiency of the device and eventually result in aggregate
overheating, which consequently may lead to failure.
While cleaning the condenser be careful not to deform the fins.
Do not wash the device with a water jet.
It is not advisable to clean the condenser with a brush as it causes impurities
penetration deep into the condenser fins and finally block the air flow
completely.

9. TRANSPORT AND EQUIPMENT
Secure the device during transport to prevent its overturning, damage to the
paint coating and breaking of the glass elements. When handling the device do
not press the glass elements, do not grab the cooling unit protective grid to lift
the device. Do not lift the refrigerator directly with a forklift truck or a pallet jack
without a pallet, as this may damage the cooling unit.
The device must be transported in its operating position!
10. TEMPERATURE CONTROLLER MANUAL
DISPLAY DESCRIPTION
The display is three digits with decimal point and 6 symbols (compressor, fan,
defrost, AUX, alarm and clock).
1. COMPRESSOR
The symbol is visible when the compressor operates. It flashes when the
compressor’s start up is delayed because of protective procedure. It flashes in the
cycle: two flashes – break when there is continuous operation mode activated.
2. FAN
The symbol is visible when there are evaporator fans switched on. It flashes when
the fans start-up is delayed by means of external switching off or when there
is other procedure in progress.
3. DEFROST
The symbol is visible when there is defrost function switched on. It flashes when
the defrost start-up is delayed by means of external switching off or when there is
other procedure in progress.
4. AUX
The symbol is visible when there is additional AUX output activated.
5. CLOCK
The symbol is visible when there is clock switched on – switching on by means of
„tEn” switch or when there is time limit set. When switching on the symbols
appears for few seconds as clock function availability.
6. ALARM
The symbol is visible when there is alarm activated.

SWITCHES DESCRIPTION
Information: Short pressing of any of the switches causes appearance of message
related to the currently active function..
7. UP / ON OFF
During normal operation of the controller; pressed for longer than 3 sec. will cause
change of controller ON/OFF operation state, pressed along with the “DOWN”
switch at the same time for longer than 3 sec. will cause activation or deactivation
of continuous operation function (after pressing there will be shown on the display
“CC” symbol). In the parameters setting mode: enable going to the next
parameters settings. During setting parameter values: it causes parameter value
increase.
8. SET / MUTE
Pressed during normal controller operation switches the alarm sound signal off;
pressed for longer than 3 sec. shows setting point; pressed along with the
“DOWN” switch at the same time while switching power supply of the controller on
will cause return to the parameters fabric settings (there will be shown “CF”
symbol on the display). In the parameters setting mode: its pressing changes the
information shown on the display: parameter name/parameter value, pressed for
longer than 3 sec. will cause saving of the set parameters. During setting
parameter values: pressed it will cause saving of the entered parameter value.
9. DOWN / DEFROST
During normal operation of the controller; pressed for longer than 3 sec. will cause
switching on/off of the manual defrost mode. In the parameters setting mode: it
allows to go to previous parameter setting. During setting parameter values: it
decreases setting value.
Set point setting (desired temperature value)
To view and modify the set point:
>press the “SET” switch for 1 sec. – the set value will start flashing;
>increase or decrease the value using the “UP” or “DOWN” switches;
>press the “SET” switch to confirm the new value
If the “SET” switch is not pressed for 60 sec., then the controller returns to
previous settings.

Manual defrost
In order to activate the manual defrost press the “DOWN” switch for more than
3 sec. The essential condition is the temperature has to be lower than +6°C.
Temperature checking on the defrost probe
>
press the “SET” switch for longer than 3 sec. (in case there is the alarm is
activated it is necessary to switch the sound alarm off first). On the display there
will appear “PS” symbol (password);
>go to the “d/” parameter be means of the “UP” and/or “DOWN” switches, then
press the “SET” switch - there will appear temperature of defrost probe and the
symbol or
>hold the “SET” switch for longer than 3 sec. (after 60 sec. automatic return) –
return to the temperature probe indication.
Access for operator to parameters configuration and its modification
>
press the „SET” switch for longer than 3 sec. (in case there is alarm activated,
switch the sound alarm first). On the display will appear the „PS” symbol (service
parameter password protected);
>
go to the next parameters by means of the “UP” and/or “DOWN” switches;
>
press the “SET” switch to view the current value of parameter setting;
>
increase or decrease setting value by means of the “UP” and “DOWN” switches;
>
press the “SET” switch to temporarily save the entered new value – it will cause
as well return to the parameters list;
>
repeat the above operations – if it is necessary;
>press and hold the “SET” switch for longer than 3 sec. – it will cause parameters
saving and exit from the programming procedure.
Warning:
If no button is pressed for 60 sec., all the changes made to the parameters,
temporarily saved in the RAM, will be cancelled and the previous settings restored.
If power is disconnected from the instrument before saving the settings (pressing
the “SET” switch for 3 sec.), all the changes made to the parameters and
temporarily saved will be lost.
Symbol
Parameter Unit Fabric setting
min.
max.
d8 Alarm bypass time after defrost h 2 0 15
A0 Alarm and fan temperature differential °C 2 0 20
AL Absolute or relative temperature for low
temperature alarm °C 2 0 150
AH Absolute or relative temperature for high
temperature alarm °C 8 0 150
Ad Temperature alarm delay min 60 0 199
High temperature alarm activation = setting + AH
High temperature alarm deactivation = setting + AH – A0
Low temperature alarm activation = setting – AL
Low temperature alarm deactivation = setting – AL + A0

Description of the main signals and alarms
LED flashing –The activation of the corresponding function is delayed by a timer
>
awaiting an external signal or disabled by another procedure that is
already in progress. e.g. if is a continuous cycle in progress and a defrost is called,
the latter will remain pending until the end of the continuous cycle, and the
corresponding LED (defrost) will flash.
OFF flashing – state of the controller - OFF, to return to working mode (ON)
press and hold ON/OFF button for more than 3 sec.
E0 steady – control probe error (1) – active sound signal:
>probe not working: the probe signal is interrupted or short-circuited;
>probe not compatible with the instrument.
The E0 alarm signal is constant when it is the only active alarm (the temperature
value is not displayed).
E0 flashing – control probe error (1) – the alarm signal E0 is steady if it is the only
active alarm (the temperature value is not displayed), while it flashes if other alarms
are active or the second probe is displayed.
E1 flashing – evaporator probe error (2):
>probe not working, the probe signal is interrupted or short-circuited;
>probe not compatible with the instrument.
Ed flashing – The last defrost ended after exceeding the maximum duration rather
than when reaching the end defrost set point. The message disappears when the
next defrost ends correctly.
EF displayed during operation or on power-up – operating parameter reading
error (controller automatic reset). Alarm reappearance after automatic reset – it is
necessary to check the controller as there is no guarantee to keep the original
precision of the operation.
EE –data errors – In certain operating conditions, the instrument may detect errors
in the data saved. These errors may compromise the correct operation of the
instrument. If the microprocessor detects a data saving error, the display shows the
message “EE”. If the fault persists, the controller needs to be replaced. If, on the
other hand, the message disappears, it can continue to be used. When “EE” error
occurs frequently and/or remains for some time, the controller should be checked,
as the original precision may not be guaranteed.
LO flashing –low temperature alarm. The probe has measured a temperature
lower than the set point by a value that exceeds parameter AL:
>check parameters AL, Ad and A0.
The alarm is automatically reset when the temperature returns within the set limits
(see parameter AL).
HI flashing – high temperature alarm. The probe has measured a temperature
higher than the set point by a value that exceeds parameter AH.
check parameters AH, Ad and A0.

11. INTERFERENCES
The most often occurring interferences of the device operation:
12. NOTES
1. Attempts to repair the device on your own and not following the instructions
described in the user manual as for equipment connection and use will result
in the device malfunction.
2. The manufacturer is not liable for damages resulting from the use of the device
in a manner inconsistent with the information contained in hereby user manual.
Reasons Symptoms Solution
Contaminated
condenser
>Visible dust layer on the condenser fins,
>hot air coming out of the aggregate chamber,
>loud operation of the aggregate,
>characteristic "clicking" coming out of the
aggregate chamber every few minutes
Before cleaning of the condenser it is
necessary to switch the device off.
Impurities on the condenser should be
removed by means of vacuum cleaner
equipped with brush, gently along fins to
not to bend the lamella.
Device loaded with
warm products
>hot air coming out of the aggregate chamber,
>loud operation of the aggregate,
>characteristic "clicking" coming out of the
aggregate chamber every few minutes
Goods loaded in the device chamber should
be initially cooled up to maximum +4°C above
the storage temperature .
Too high ambient
temperature
>hot air coming out of the aggregate chamber,
>loud operation of the aggregate,
>characteristic "clicking" coming out of the
aggregate chamber every few minutes
Ambient temperature for proper operation of
the device should not exceed respectively: for
3rd climatic class +25°C.
Improper goods
distribution in
cooling chamber
>
high temperature of products
The goods should be placed as described in
user manual.
External source of
heat causing the
abnormal
operation of the
device
>hot air coming out of the aggregate chamber,
>loud operation of the aggregate,
>characteristic "clicking" coming out of the
aggregate chamber every few minutes
External source of heat might be any other
device that emits heat such as gas burner,
heater, other device equipped with a
refrigerated aggregate etc. It is necessary to
pay attention if above mentioned examples
may have influence on the deterioration of
device operation conditions.

„RAPA” S. Międlar W. i I. Szymańscy sp. j.
POLAND, 20-149 Lublin, 9 Ceramiczna Street
nr rej. BDO 000009031
tel. [phone] do 14
e-mail: [e-mail]
Ser
vice
:
tel. [phone]
e-mail: [e-mail]
www.rapa.pl/en
The package should be removed according
to the regulations of environmental protection.
The warranty card and conditions
are effective only in the area of Poland.