Modena BZ 1014 Owner's manual

User
Manual Book
Blast Chiller
BZ 1014, BZ 1010, BZ 1005

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Thank you for your trust in choosing MODENA products for your household needs. With your
satisfaction as our priority, we constantly aim to deliver stylishly designed products equipped
with state-of-the-art technology to assist you in your daily activities.
This is your guidebook containing everything you need to know about our product. Please reach
out to us if you need further assistance or other information via our Customer Care or our
official website www.modena.com.

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CONTENTS
Hal.
INTRODUCTION
2
-
Part 1
: Regulation & General Instruction
4
-
Part 2
: Name of Parts
4
-
Part 3
: Installation
5
-
Part 4
: How to Use
7
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Part 5
: Cleaning & Maintenance
28
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Part 6
: Troubleshooting
30
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Part 7
: Disposal
30
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Part 8
: Refrigerant Technical Card
31
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Part 9
: Specification
31

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A. General Information
This manual book is designed by the manufacturer to provide the necessary information to those who are
authorized to interact with the appliance.
The persons receiving the information must read it carefully and apply it strictly.
Reading the information contained in this document will allow the user to prevent risks to personal health and
safety.
The manual book should be kept in good condition and stored in an easily accessible place.
Particular symbols have been used to highlight some parts of the text that are very important or to indicate some
important specifications. Their meanings are given below:
Indicates important safety information. Take the procedures appropriately to prevent the damage
risk and the user’s safety.
Indicates important technical information that should not be ignored.
B. Replacement of Part
Activate all necessary safety devices before carrying out any replacement intervention.
In particular, turn off the power supply using the different disconnecting switch.
All responsibility is declined for injury to persons or damages on the components from using non-
original spare parts and intervensions which could modify the safety requisites, without authorization
of the manufacturer.
The picture is an illustrattion; features depend on the type of the procucts.
The Blast chiller & freezer, from now on defined as appliance, has been designed and built to cool and/or freeze
food materials in the professional catering scope.
1. Condensation area: it is positioned in the lower part and is characterized by the presence of the condensing
unit.
2. Electric area: it is positioned in the lower part of the appliance and contains the control and power supply
components as well as electric wiring.
Part 1: Regulation & General Instruction
Part 2: Name of Parts

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3. Evaporation area: it is situated inside the refrigerated compartment in the rear and is characterized by the
evaporating unit.
4. Storage area: it is situated inside the refrigerated compartment and is destined for the cooling and/or freezing
of food stuffs.
The lower part is also distinguished by a control panel (A) that allows access to the electric parts; there is a
vertically-opening door in the front, which closes the refrigerated compartment hermetically. Depending on
requirements, the appliance is produced in several versions.
BZ 1005
This model is suitable to contain 5 trays with blast chilling capacity of 18kg and shock freezing capacity of
14kg.
BZ 1010
This model is suitable to contain 10 trays with blast chilling capacity of 40kg and shock freezing capacity of
28kg.
BZ 1014
This model is suitable to contain 14 trays with blast chilling capacity of 55kg and shock freezing capacity of
38kg.
A. Packaging and unpacking
Handle and install the appliance by following the information provided by the manufacturer, shown on the
packaging, the appliance and in this manual book.
The lifting and transportation system of the packaged product envisions the use of a fork-lift truck or a pallet
stacker. When using these, particular attention must be paid to balance the weight to prevent the risk of overturning
(avoid excessive tilting).
ATTENTION: When inserting the lifting device, pay attention to the positions of power supply cable
and the feet.
The packaging is made of cardboard and the pallet of plywood. A series of symbols is printed on the cardboard
packaging in accordance with international standards, the provisions to which the appliances are subjected during
loading, unloading, transport and storage.
Ensure that the packaging is intact and has not undergone any damage during transportation.
The transportation company must be notified of any damage immediately.
The appliance must be unpacked immediately to check the condition. Do not cut the cardboard with sharp tools to
prevent damage to the steel panels underneath.
Pull the cardboard packaging upwards.
After unpacking the appliance, ensure the features correspond with the requested ones on the order. Contact
MODENA Call Center immediately if any a incompatibility occurs.
Packaging elements (nylon bags, polystyrene foam, staples) must be kept away from children.
Part 3: Installation

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Remove the protective PVC film from the internal and external walls, avoiding the use of metal
tools.
B. Installation
All the installation phases must be considered from the general plan. The installation area must be equipped with
all power supply and production residue drainage connections and must comply with local regulations regarding the
hygiene and sanitary requirements.
The performance of the appliance must be kept at a room temperature of 32°C. A
highertemperature can interrupt the perfromance of the appliance and, in more serious cases, it
may activate the appliance’s protections.
Therefore, consider the room condition to reach the condition before installing.
This appliance can only be installed and operate in rooms which are permanently ventilated to
guarantee correct operation.
Leave for a certain period of time (at least 2 hours) before checking the function of the appliance.
During transport it is possible for the compressor lubricant oil to enter the refrigerant circuit blocking
the capillary. As the consequence, the appliance will function for a certain period of time without
producing cold until the oil has returned to the compressor.
ATTENTION: the appliance requires the minimum functioning spaces, as shown in the attachments.
The defrosting water and the water that forms at the bottom of the refrigerating compartment during operation or
during periodical internal cleaning must be drained through a prearranged hose with a minimum diameter 3/4
connected to the hose at the bottom of the chiller.
The drainage should be installed as well. The drainage must in compliance with the standards.
C. Electric Power Supply Connection
Electric power supply connection must be carried out by authorized and qualified staff, respecting the current laws
regarding the subject and using appropriate prescribed material.
Before connecting the appliance to the electric mains, check for the power supply installation and
ensure the supply voltage should correspond with the working voltage of the appliance.
Before connection, ensure the presence of a relevant differential switch with adequate power in the
mains power supply, upstream from the appliance, in order to protect the appliance from overloads
or short circuits.
D. Inspection
The appliance is delivered ready to use for the user. This functionality is guaranteed by passing the inspections
(electric inspection-functional inspection, appearance inspection).
Check these condition after installation:
The electric connections.
The function and efficiency of drains.
Check and ensure that no tools or materials left inside the applience that could disrupt the function or damage
the appliance.

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 Safety
It is recommended to carefully read the instructions and warnings in this manual book before
operating the appliance. The information in the manual book is fundamental for the safety of the
use and for maintenance.
Keep this manual carefully. The electric plant has been designed in compliance with the IEC EN
60335-2-89 and EN 60335-1 standard.
Special adhesive is required around the mains voltage area to prevent the risk of electricity.
Before the connection, ensure the presence of an omni polar switch with minimum contacts
opening minimum of 3mm in the mains power supply upstream from the appliance.
In the design and construction phase, the manufacturer has paid particular attention to the aspects
that can cause risks to safety and health of persons that interact with the appliance.
Read and follow the instructions in the manual book carefully. Don’t tamper or eliminate the installed safety devices.
Failure to comply with this requisite can lead to serious risks for personal health and safety.
It is recommended to simulate some test maneuvers to identify the controls, in particular those relative to switch-on
and switch-off and their main functions.
The appliance is only destined for the use for which it has been designed; any other use must be considered
improper.
The manufacturer declines all liability for any damage to objects or injury to persons owing to
improper or incorrect use.
All maintenance interventions that require precise technical skill or particular ability must be
performed exclusively by authorized technicians.
When using the appliance, never obstruct the air inlet when the appliance is on, so as not to
compromise its performance and safety.
Do not stretch the power cable.
In order to guarantee hygiene and protect the food stuffs from contamination, the elements that come into direct or
Part 4: How to Use

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indirect contact with the foodstuffs must be cleaned very well along with the surrounding areas. These operations
must only be performed using detergents that can be used with foodstuffs, avoiding inflammable products or those
that contain substances that are harmful to personal health.
In the case of prolonged inactivity, as well as disconnecting all the supply lines, it is necessary to accurately clean
all internal and external parts of the appliance.
 Recommendation for Use
Prolonged Inactivity
If the appliance is not used for a long time, proceed as follows:
a. Use the automatic isolating switch to cut off the connection to the main electrical line.
b. Clean the appliance and surrounding areas thoroughly.
c. Spread a thin layer of cooking oil onto the stainless steel surfaces.
d. Carry out all maintenance operations.
e. Leave the doors ajar to prevent the formation of mould and /or unpleasant odor.
Recommendations for normal use
To ensure the correct use og the appliance, follow the recommendations:
Do not obstruct the zone in front of the condensing unit so that the heat disposal from the
condenser is maximized. Keep the zone clean.
Do not insert food materials above 65°C as well as overloading the appliance as it can make the
temperature drop process be longer. If possible, cool the food materials outside the appliance to
the set temperature.
Check the planarity of the appliance rest surface.
Make sure the food does not touch the inner walls of the appliance to not obstruct the circulation of
cold air.
There must be a sufficient space between the basins and trays used to guarantee a sufficient flow
of cold air on the entire product. Therefore avoid the following positions of trays and/or basins
stated below.
Do not clog the inlet of the evaporator fans.
Products that are more difficult to chill because of their composition and size should be placed in
the center.
Limit the number of times and the duration of time opening the door.
Blast chilling data refer to standard products (low fat) with a thickness below 50mm: therefore
avoid overlaying products or the insertion of pieces with a much higher thickness. This would lead
to an extension of blast chilling times. Always distribute the product well on the trays or basins or
in the case of thick pieces decrease the amount to blast chill.
After blast chilling/shock freezing the product, it can be stored in a preservation cabinet after
having been duly protected .A tag should be applied describing the contents of the product,
blast chilling/shock freezing date and expiry date. When the product has been blast chilled it must
be preserved at a constant temperature of +2°C，while if it has been shock frozen it must be
preserved at a constant temperature of -20°C.

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The chiller should be used for storage for short periods only.
To prevent bacterial contamination or contamination of any other biological nature, the needle
probe must be disinfected after use.
To extract the product that has undergone blast chilling or shock freezing ,always wear gloves to
protect the hands.
Blast chilling cycle
This blast chilling make the cooler keeps the room temperature close to zero throughout the process to ensure
+3°C drop in food temperature. In this cycle, ice crystals do not form on the food sufcaes. This fast blast chilling
method is intended for unpacked products with physical characteristics that can be damaged by the formation of a
layer ice, (e.g. fish).
Shock freezing cycle
With this shock freezing make the freezer maintains the temperature below -18°C，which is the end temperature of
shock freezing. For shock freezing to be successful and fast, food should be in small pieces, particularly if it has a
high fat content. The larger pieces should be placed in central trays. If it takes longer than standard time to shock
freeze and the sizes cannot be reduced, decrease the quantity and precool the chiller compartment by starting an
empty shock freezing cycle before shock freezing the product.
 Panel Control (XB507L)
a. General features
The series XB has been created for fast chilling or freezing goods according to international food safety
standards.
There are four types of cycles:
The cycles: Cy1, Cy2, Cy3, Cy4 are pre-set according to the most common cycles used in food- safety
applications; the user can select one of them according to the needs.
Any cycle can be manually stopped manually.
Any cycle can use the probes (up to 3). The probes measure the internal temperature of the product.
There are no defrosts and the fans are always on during the cycle. Defrosting cycle can be done before
any freezing cycle.
The cycle is divided in to 3 phases, completely configurable by the user.
Each instrument is equipped with an output for remote display XR REP, which shows the temperature of
cabinets or goods.
The XB570L controller is equipped with internal real time clock connected to XB07PR (optional). The report
containing the main features of the cycle can be printed: the start and finish time of cycle, the length, the
temperature of the cabinet and goods.

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b. Installation
Model XB570L is a controller panel attached to the appliance; with the hole diameter of 150x31 mm, and
screwed in. The ambient operating temperature range is 0÷60°C. Avoid locations with heavy vibration,
corrosive gases or excessive dirt. The same applies to the probes. Ensure ventilation around the appliance.
c. Electrical connections
The instruments are provided with a screw terminal block to connect cables with a cross section up to 2.5mm²
for probes and digital input. Spade on 6.3mm heat-resistant wiring for supply and loads. Before connecting
cables make sure the power supply is in accordance with the requirements. Separate the input connection
cables from the power supply cables, from the outputs and the power connections. Do not exceed the
maximum current allowed on each relay, in case of heavier loads use a suitable external relay.
For the probe and digital input connectivity, this appliance is equipped with terminal block screw for connecting
wires with a cross-section up to 2.5mm2.
 Probes connection
The probes shall be mounted with the bulb upwards to prevent damages due to casual liquid infiltration. It
is recommended to place the thermostat probe away from air streams to correctly measure the average
room temperature. Place the defrost termination probe among the evaporator fins in the coldest place,
where most ice is formed, far from heaters and from the warmest place during defrost, to prevent
premature defrost termination.
d. Connection
e. Front Panel
f. Quick Start
Display
The upper display shows the temperature of the room probe.
The lower display shows the temperature of the inserts probe or the countdown timer. To pass to the one
insert probe to another one use the DOWN button.

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Display
Temperature.
Timer or insert probe.
Alarm and status icons.
If an icon or LED is on, the correspondent function is enabled.
If an icon or LED is flashing, the correspondent function is delayed.
Buttonboard in stand-by
 How to select a cycle:
Push and release the (3) button until the desired cycle is selected.
 How to start a cycle:
Push and release the (2) START/STOP button. The correspondent yellow LED is switched on.
How to temporarily stop the running cycle:
1. Press and release the button.
2. The compressor and the fan will be stopped for the PAU time (see parameters list)
and the flashing message “Stb” will be displayed.
 To restart the cycle press and release the button, the cycle will restart
from the some point at which it was interrupted.
 In any case the cycle automatically restarts after the PAU time.
 How to stop a cycle:
Hold pushed the (2) START/STOP button until the yellow LED will be switched off.
 How to set the time (RTC)
Hold pushed the (5) DOWN button until the Min label is displayed.
Use the UP and DOWN button to browse the parameters.
To modify: push the SET button and then the UP and DOWN button.
To confirm: push the SET button.
To exit the RTC menu: Push together SET + UP buttons or wait 5 sec.

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How display/modify the set.
Point if the holding phase to display: Push and release the (6) SET button, the holding set point of
the selected cycle is displayed for 5 seconds.
To modify: while the set point is displayed hold pushed the SET button till the HdS label start
flashing. Use the UP and DOWN button to modify the value.
TO CONFIRM: push the SET button to confirm the value and exit.
 How to modify a cycle:
1. Push the (6) button for several seconds till the first parameter (CyS) is displayed.
2. Use the UP and DOWN buttons to browse the parameters.
3. To modify a parameter push the SET button and use the arrow buttons.
4. Confirm the new value by pushing the SET button.
5. The new value is recorded even if the programming is exited by time out.
Buttonboard when a cycle 1,2,3,4,5 is running
Display temperature:
The upper display shows the temperature of the thermostat probe the bottom display shows
the temperature of a insert probe (if enabled) or the countdown timer.
By pushing the DOWN button the probes iP1, iP2, iP3 and the countdown timer are displayed
in sequence.
Phase display: pushing the UP button the running phase is displayed.
How to display the regulation set points
By pushing the SET button the following information are displayed in sequence:
- rSI = Room set point

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- iSI = Stop phase set point, referred to the insert probe
- Back to the room temperature.
How to modify the room set point
While rSI or iSI are displayed hold pushed the SET button till the rSi or iSi label start flashing and
LED near the SET button is turned on. Use the arrow button to modify the value and the SET button
to confirm it.
Buttonboard when the holding cycle is running (H)
How to display the holding (regulation) set point
While the holding cycle is running, (H icon lighted), push the SET button and the holding
set point is displayed on the UPPER display while the SETH label on the bottom display.
How to modify the room set point
While SETH is displayed hold pushed the SET button till the SETH label starts flashing
and LED near the SET button is turned on. Use the arrow button to modify the value and
the SET button to confirm it.
To confirm and exit: push again the SET button.
Other buttons

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Light (4): push the LIGHT (4) button to switch the light on and off. The status of the light is
monitored by the yellow LED upper the button.
AUX (8): push the AUX (8) button to switch the auxiliary on and off. The status of the auxiliary
relay is monitored by the yellow LED upper the button.
Printer / H (7): to enabled / disable the printer, push the PRINTER button when the buttonboard
is connected to the controller.
Printer configuration menu
Push the PRINTER (7) button for few seconds to enter the printer configuration menu. The itP, label is
displayed, use the ARROW buttons to browse the parameters
To modify: push the SET button and then the ARROW buttons.
To confirm: push the SET button
To exit the Printer menu: Push together SET + UP buttons or wait 5 sec
How to start a manual defrost
1. Assure that none cycle is active or the hold mode is running.
2. Hold press the UP button fro few seconds.
NOTE: The defrost will not be done if the temperature detected by the evaporator probe is higher than
EdF (stop defrost temperature) parameter.
Other function of button board

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Meaning of the LEDS’
A series of light points on the front panels is used to monitor the loads controlled by the
instrument. Each LED function is described in the following table.
How to select a cycle
1. Push the to move among the cycles C1, C2, C3, C4 and the holding cycle. The related symbol
on the display will be lighted and the cycle will be selected.
NOTE: to pass from a cycle to another one simply push the button when the controller is in
stand–by mode.
HOLD PHASE: To select H symbol pushing the . Cycles are pre-set with the following values:
- Cy1: for fast chilling and conservation of foods (hard +soft chill).
- Cy2: for chilling and fast freezing of foods (hard +soft + freezing cycle).
- Cy3: for direct fast freezing (only fast freezing cycle)
- Cy4: for fast freezing avoiding ice skin (hard chill + freezing cycle)
- HLd: hold mode function
- dEF: for starting a manual defrost
2. Now the cycle is memorized and can be activated.
 How to modify a cycle
1. Verify that none cycle is running. If one cycle is running stop it by pushing the
button for 3s.
2. Push the to move among the cycles C1, C2, C3, C4 and the holding cycle. The
related symbol on the display will be lighted and the cycle will be selected
3. Hold push the button for several seconds till the display will show the first
parameter of the selected cycle (CyS) with its value.
4. Use the UP and DOWN buttons to browse the parameters.
5. To modify a parameter push the SET button and use the arrow buttons.
6. Confirm the new value by pushing the SET button.
7. The new value is recorded even if the programming is exited by time out.
To exit: wait 30s or push the SET+UP buttons .
Parameters
- Hy Intervention differential for set point: (0,1 ÷ 12,0 /0,1°C/1°F), always positive. Compressor

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cut IN is Set Point Plus Differential (Hy). Compressor cut OUT is when the temperature reaches
the set point.
- AC Anti-short cycle delay: (0÷30 min) minimum interval between the compressor stop and the
following restart.
- PAU Time of stand by: (0 ÷ 60min) after this time the controller restart the cycle.
- PFt Maximum acceptable duration of power failure: (0 ÷ 250 min) if power failure duration is
less than PFt, the cycle restarts from the same point at which it was stopped otherwise the cycle
restarts from the beginning of the current phase.
- Con Compressor ON time with faulty probe: (0÷ 255 min) time during which the compressor is
active in case of faulty thermostat probe. With COn=0 compressor is always OFF
- COF Compressor OFF time with faulty probe: (0÷255 min) time during which the compressor
is off in case of faulty thermostat probe. With COF=0 compressor is always active.
Probes
- rPO Thermostat probe calibration (-12,0 ÷ 12,0; res. 0,1 °C /1°F)
- EPP Evaporator probe presence (not present in the XB350C): (no / YES) no: not present
(timed defrost); YES: present (end defrost )
- EPO Evaporator probe calibration (not present in the XB350C): (-12,0 ÷ 12,0; res. 0,1 °C
/1°F)
- i1P Insert probe 1 presence (no / YES) no: not present; YES: present.
- i1o Insert probe 1 calibration (-12,0 ÷ 12,0; res. 0,1 °C /1°F)
- i2P Insert probe 2 presence (no / YES) no: not present; YES: present.
- i2o Insert probe 2 calibration (-12,0 ÷ 12,0; res. 0,1 °C /1°F)
- i3P Insert probe 3 presence (no / YES) no: not present; YES: present.
- i3o Insert probe 3 calibration (-12,0 ÷ 12,0; res. 0,1 °C /1°F)
- rEM End cycle probe selection. (iPt, rP). It sets which probe stops teh the cycle, thermostat
probe or insert probe.
iPt = insert probe;
rPt =thermostat probe
NOTE, with rEM = rPt when the cycles are done by temperature, the rSi values are used
as stop of the cycle.
 Display and measurement unit
- CF Temperature measurement unit: °C =Celsius; °F =Fahrenheit
- rES Resolution (for °C): in: integer; de: with decimal point
- Lod Upper display visualization: select which probe is shown by the upper display:
rP = Thermostat probe
EP = Evaporator probe
- rEd Remote display, X-REP, visualization: select which probe is displayed by the X- REP: rP
= Thermostat probe; EP = Evaporator probe; tiM: cycle count down; i1P = insert probe 1; i2P =
insert probe 2; i3P = insert probe 3.
Digital inputs
- d1P: Door switch input polarity (25-26): (OP÷CL) select if the digital input is activated by
opening or closing the contact. OP= opening; CL=closing.
- odc Compressor and fan status when open door: no = normal;
Fan = Fan OFF;
CPr = Compressor(s) OFF;
F_C = Compressor(s) and fan OFF.
- doA Open door alarm delay:(0÷254min,nu) delay between the detection of the open door
condition and its alarm signaling: the flashing message “dA” is displayed. If doA=nu the door
alarm will be not signaled.
- dLc Stop countdown of the running cycle with door open y = countdown is stopped with
door open; n= countdown goes with door open;
- rrd Regulation restart with door open alarm: y = count down and regulation restart when door

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open alarm is signaled.; n = compressor and fans stay according to the odc parameter when
door open alarm is signaled.
- d2F(EAL, bAL,) Second digital input configuration (26-27): EAL: external alarm; bAL:
serious alarm, regulation is stopped.;
- d2P: Configurable digital input polarity (26-27): (OP÷CL)select if the digital input is activated
by opening or closing the contact. OP= opening; CL=closing
- did Time delay for digital input alarm:(0÷255 min.) If d2F=EAL or bAL (external alarms), “did”
parameter defines the time delay between the detection and the successive signaling of the
alarm.
Auxiliary relay configuration
- oA1 First auxiliary relay configuration (7-8):
ALL: alarm; Lig: light; AuS: Second thermostat; tMr: auxiliary relay enabled by buttonboard C2:
Second compressor: it always is switched on during the Cycles, during the holding depends on
the 2CH parameter.
- oA2 First auxiliary relay configuration (1-2):
ALL: alarm; Lig: light; AuS: Second thermostat; tMr: auxiliary relay enabled by buttonboard C2:
Second compressor: it always is switched on during the Cycles, during the holding depends on
the 2CH parameter.
- oA3 First auxiliary relay configuration (9-10)
ALL: alarm; Lig: light; AuS: Second thermostat; tMr: auxiliary relay enabled by buttonboard C2:
Second compressor: it always is switched on during the Cycles, during the holding depends on
the2CH parameter.
 Second relay management
2CH Compressors setting during the holding phase: (used only if one OAi =C2)
The second compressor is always switched on during the phases, during the holding depends on
this parameter.
The 2CH sets which compressor is used during the holding phase.
Second compressor operates on set + OAS. (whit set= set loaded during the holding phase of each
cycle). It starts oAt min. after the first compressor
The following table shows how it works:
Holding
2CH =C1
C1 on;
2CH =C2
C2 on
2CH =1C2
C1 on; C2 On
- OAt Second compressor switching on delay: (0÷255 min) time delay between the switching
on of the first and second compressor.
- OAS Set point for second compressor (-50÷50; ris.1 °C/ 1°F) This set point is a differential
add to the set point of the first compressor.
ES. OAS=0 the set point of the second compressor s the same set point of the first compressor.
OAS=5 the set point of the second compressor is SET (of first compressor) + 5;
OAS=-5 the set point of the second compressor is SET (of first compressor) - 5;
- OAH Differential for second compressor: (-12.0÷12,0; ris.0,1°C/1°F, always ¹0) second
compressor cut IN is SETH+OAS+OAH. Second compressor cut out is when the temperature
SETH+OAS.
- OAi Probe selection for the second compressor: rP =Thermostat probe; EP = Evaporator
probe; tiM: cycle count down; i1P = insert probe 1; i2P = insert probe 2; i3P = insert probe 3.

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 Auxiliary relay management
- OSt AUX output timer: (0÷255 min) time in which the AUX output stays ON. It is used when
oA1 or oA2 or oA3 = tMr. With oAt = 0 the AUX relay is switched on and off only manually.
- OSS Set point for AUX output, used when oA1 or oA2 or oA3 = AUS (-50÷50; ris.1
°C/ 1°F)
- OSH Differential for AUX output: (-12.0÷12,0; ris.0,1°C/1°F, always ¹0) Intervention differential
for the set point of the AUX output, with OAH<0 the action is for heating, with OAH>0 it is for
cooling.
- COOLING, OSH >0: AUX output cut IN is OSS+OAH. Second compressor cut out is when the
temperature SETH+OAS.
- HEATING, OSH <0: second compressor cut IN is OSS-OAH. Second compressor cut out is
when the temperature OSS
- OSi Probe selection for the second compressor: rP =Thermostat probe; EP = Evaporator
probe; tiM: cycle count down; i1P = insert probe 1; i2P = insert probe 2; i3P = insert probe 3.
 Defrost
- tdF Defrost type (not present in the XB350C): (rE= electrical heater; in = hot gas).
- IdF Interval between defrost cycles: (0.1÷ 24.0; res. 10 min) Determines the time interval
between the beginning of two defrost cycles. (with 0.0 the defrost is disabled)
- dtE Defrost termination temperature: (-50÷50 °C/°F) Sets the temperature measured by the
evaporator probe, which terminates the defrost. Used only if EPP =YES
- MdF Maximum length for defrost: (0÷255 min) When EPP = no (timed defrost) it sets the
defrost duration, when EPP = YES (defrost termination based on temperature) it sets the
maximum length for defrost.
- dFd Temperature displayed during defrost: (rt , it, SEt, dEF) rt: real temperature; it:
temperature at the start of defrost; SEt: set point; dEF: “dEF” message
- Fdt Drip time: (0 ÷ 60 min) Time interval between reaching defrosts termination temperature
and the restoring of the controllers' normal operation. This time allows the evaporator to
eliminate water drops that might have formed during defrost.
- dAd Defrost display time out: (0÷120 min) Sets the maximum time between the end of defrost
and the restarting of the real room temperature display.
 Fans
- FnC Fans operating mode during the holding phase:
o-n = continuous mode, Off during defrost;
C1n= runs in parallel with the first compressor, OFF during defrost; C2n= runs in parallel
with the second compressor, OFF during defrost; Cn= runs in parallel with compressors,
OFF during defrost;
o-Y = continuous mode, on during defrost;
C1y= runs in parallel with the first compressor, on during defrost;
C2y= runs in parallel with the second compressor, on during defrost;
Cy= runs in parallel with compressors, on during defrost;
- FSt Fan stop temperature: (-50÷50°C/°F; res. 1°C/1°F).It used only if the EPP = yES. If the
temperature detected by the evaporator probe is above FSt fans are stopped. It serves to avoid
blowing warm air in the room.
- AFH Differential for the stop temperature and for the alarm (0.1 ÷ 25.0 °C; ris.0.1°C/1°F)
Fans carry on working when the temperature reaches the FSt-AFH value, the temperature alarm
recovers when the temperature is AFH degrees below the alarm set.
- Fnd Fan delay after defrost: (0 ÷ 255 min) The time interval between end of defrost and
evaporator fans start.
 Temperature alarms
- ALU MAXIMUM temperature alarm (it is used only during the holding phase): (1 ÷ 50
°C/°F) When the “SET+ALU” temperature is reached the alarm is enabled, (possibly after the
“ALd” delay time).

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- ALL Minimum temperature alarm (it is used only during the holding phase): (1÷50°C/1°F)
When the “SET-ALL” temperature is reached the alarm is enabled, (possibly after the “ALd”
delay time).
- ALd Temperature alarm delay (it is used only during the holding phase): (0÷255 min) time
interval
- between the detection of an alarm condition and alarm signaling.
- EdA Temperature alarm delay at the end of defrost (it is used only during the holding
phase): (0 ÷ 255 min) Time interval between the detection of the temperature alarm condition at
the end of defrost and alarm signaling.
- tbA Silencing alarm relay: (Yes= silencing buzzer and alarm relay, no= only buzzer silencing).
 Cycle log
- tCy duration of the last cycle (readable only);
- tP1 duration of first phase of the last cycle (readable only);
- tP2 duration of second phase of the last cycle (readable only);
- tP3 duration of third phase of the last cycle (readable only);
 Other
- Adr Address for RS485: (1 ÷247)
- bUt Buzzer activation at the end of the cycle (0÷60s; with 0 the buzzer is on till a button is
pushed)
- tPb Kind of probe: it sets the kind of probe used:
ntc = NTC o Ptc = PTC.
- rEL Release code (readable only)
- Ptb Parameter code (readable only)
g. How a cycle is done
1. Every programmable cycle Cy1, Cy2, Cy3 or Cy4 can be divided into up to 3 phases usually called:
 Hard chill
 Soft chill
 Freezing cycle
2. For each phase there are 3 parameters.
iS1, (iS 2, iS 3): Set point related to the insert probes that stops the current phase.
rS1, (rS2, rS3): set point of the room temperature for each phase.
Pd1, (Pd2, Pd3): the maximum duration time for each phase.
Hds : set point of the hold phase at the end of the whole cycle.
There are also 3 parameters:
First one concerning the cycle way of doing the cycle: by temperature or by time, the other two are related to
defrost. These are dbC = defrost before cycle, dbH = defrost before holding (at the end of the cycle).
 Configurable cycle parameters
- cyS Cycle setting: tEP = by temperature. The cycle is done according to the rEM
parameter; tiM: timed cycle, based on the Pd1, Pd2, Pd3 parameters.
- dbc (yes/no) Defrost before the cycle
- iS1 (-50÷50°C;1°C/1°F) Insert Probe Set point: when the temperature measured by the three insert
probes reaches this value the first phase is ended.
- rS1(-50÷50°C; 1°C/1°F) Room probe Set point for the first phase: it prevents temperature from
reaching a too low value during the hard cycle.
- Pd1 (OFF÷4.0h;10 min)Maximum time for first phase
- iS2 (-50÷50°C; 1°C/1°F) Insert probe set point when the temperature measured by the three insert
probes reaches this value the second phase is ended.

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- rS2 (-50÷50°C; 1°C/1°F) Room probe Set point for the second phase: it prevents temperature from
reaching a too low value during the second phase.
- Pd2 OFF÷4.0h; res. 10 min Maximum time for second phase.
- iS3 (-50÷50°C; 1°C/1°F) Insert Probe Set point to stop the third (and last) phase: when the
temperature measured by the three insert probes reaches this value the third phase is ended.
- rS3 (-50÷50°C; 1°C/1°F) Room Probe Set point for the third (and last) phase: it prevents temperature
from reaching a too low value during the third (and last) phase.
- Pd3 (OFF÷4.0h; 10 min) Maximum time for the third phase.
- dbH (yes / no) defrost before the hold phase
- HdS (-50÷50 - OFF; 1 °C / 1°F) Set point of the holding phase. With “OFF” the hold phase is
disabled.
IMPORTANT NOTE: If the duration time of a phase is set at the OFF value, the corresponding phase is
disabled. E.g. If Pd3= 0FF the third phase of the cycle is not active.
This cycle is performed according to REM parameters; TIM: cycle times, based on parameters Pd1, PD2, PD3.
- Dbc (yes/no) Defrosting before cycle.
- IS 1 (-50 ÷ 50 ° C; 1 ° C / 1 ° F) room set point insert probe: when temperature measured by the three
insert probes reaches this value, the first phase is ended.
- RS1 (-50 ÷ 50 ° C; 1 ° C / 1 ° F) Room set point probe for the first phase: prevent the temperature to
reach lower value in hard cycle.
- Pd1 (OFF ÷ 4.0h; 10 minutes) the maximum time for the first phase.
- Is2 (-50 ÷ 50 ° C; 1 ° C / 1 ° F) Insert check point set when temperature measured by the three insert
probes reaches this value, the second phase is ended.
- RS2 (-50 ÷ 50 ° C; 1 ° C / 1 ° F) Room set point probe for the seonc phase: to prevent the temperature
reahc lower value in the second phase.
- PD2 OFF ÷ 4.0h; res. 10 minutes maximum time for the second phase.
- IS3 (-50 ÷ 50 ° C; 1 ° C / 1 ° F) Insert set point probe to end the third phase (and last): when
temperature is measured by the three insert probes, the third phase is ended.
- RS3 (-50 ÷ 50 ° C; 1 ° C / 1 ° F) Set point probe for the third phase (and last): prevent the temperature
reach lower value in the third phase (and last).
- PD3 (OFF ÷ 4.0h; 10 minutes) maximum time for the third phase.
- DBH (yes/no) defrost before holding phase.
- HDS (-50 ÷ 50 - OFF; 1 ° C / 1 ° F) setting the holding phase point. With “OFF” phase nonactivated.
- IMPORTANT NOTE: if the duration of phase set on OFF value, the phase is deactivated. Example: if
PD3: OFF, the third phase is deactivated.
 How to use the insert probes
By means the insert probe, the internal temperature of products can be checked. This measure is used to
end the various phase of the cycle. A special internal function detect if the inset probe is not used, in this
case the cycle is made by time.
 Example of blast chiller cycle
The following drawing explains how a Blast Chiller cycle can be done.