Williams WBCF30, WBC30, WBCF40, WBC40, WBCF50 Operating Manual

This manual covers the Installation, Operation, Routine Maintenance and Cleaning
requirements for the following Williams Refrigeration products:

WBC/WBCF10 WMBC/WMBCF90 WMBF100 J1BC
WBC/WBCF20 WMBC/WMBCF120 WMBF200 WBC70
WBC/WBCF30 WMBC/WMBCF160
WBC/WBCF40 WMBC/WMBCF200
WBC/WBCF50 WMBC/WMBCF240

WMBC/WMBCF320

Provided the instructions in this Operating Manual are read and implemented correctly,
the optimum performance and reliability of your equipment should be maintained.

The Williams range of Reach-In Blast Chillers has temperature parameters set as follows:
+90°C (194°F) / +3°C (37°F)

The Williams range of Reach-In Blast Chiller Freezers has temperature parameters set as
follows:
+90°C (194°F) / +3°C (37°F) and +90°C (194°F) / -18°C (0°F)

The Williams range of Modular Blast Chillers, Chiller Freezers and Freezers are designed to
blast chill/freeze products:

WMBC +90°C (194°F) / +3°C (37°F) in 90 minutes or less
WMBCF +90°C (194°F) / +3°C (37°F) in 90 minutes or less

+90°C (194°F) / -18°C (0°F) in 240 minutes or less

WMBF +90°C (194°F) / -18°C (0°F) in 240 minutes or less

Also designed to hold product at the following temperatures:

WMBC +3°C (37°F)
WMBCF +3°C (37°F) (blast chill cycle) or -18°C (0°F) (blast freeze cycle)
WMBF -18°C (0°F) (blast freeze cycle)

Declaration of Conformity References:
Low Voltage Directive 2006/95/EC
Machinery Directive 2006/42/EC
Electromagnetic Compatibility Directive 2004/108/EC
Pressure Equipment Directive 97/23/EC
Waste Electrical and Electronic Equipment Directive (WEEE) 2012/19/EU
Restriction on Use of Certain Hazardous Substances Directive (RoHS2) 2011/65/EU

CFC Free Refrigerant

Williams Refrigeration declares that all products manufactured by Williams Refrigeration
comply with the above directives as they apply to those products, and those products are
therefore declared to be in conformity with the provisions of the above legislation.

Model No.:

Serial No.:

OPERATING and ENGINEERS MANUAL for
REACH-IN and MODULAR BLAST CHILLERS,
BLAST CHILLER FREEZERS and BLAST FREEZERS

Refrigerant Designation Global Warming Potential

HFC - R134a 1300

HFC - R404a 3260

REMOVAL OF REDUNDANT UNITS

Please ensure the old / redundant panels and
refrigeration equipment are disposed of safely and
legally.
It is recommended that doors are removed prior to
disposal in order to ensure safety.

INSTALLATION

Remove all external and interior packing and
accessories. Ensure all such material is disposed of
safely.
The Roll-in Blast Chillers/Chiller Freezers and Freezers
are supplied modular form on pallets and require
assembly on site. Please see additional manual on
assembly.
Stainless steel sections are protected with plastic film
when shipped. Prior to assembly remove the film from
any surfaces to be joined together and thoroughly clean
the surfaces thus exposed to remove any residual
adhesive. White spirit is useful for this purpose. Once
assembly is complete you may remove the rest of the
film.
Please ensure all film and waste materials from
unpacking and assembly are disposed of safely once the
process is completed.

VENTILATION

It is essential to ensure that the room in which the
unit is to be installed has adequate ventilation.
Refrigeration equipment generate a considerable amount
of heat and, if operated in a small unventilated room,
especially in warm weather, will quickly cause the room
temperature to become excessive. This could cause the
motor to overheat and possibly damage the windings. At
the very least, such an installation will cause the unit to
use an excessive amount of electricity.
In addition to ventilation in a room, please ensure that
cabinets with top-mounted systems (WBC/WBCF50)
have 500mm clearance between the cabinet top and the
ceiling for engineer access and ventilation. For all other
cabinets, please ensure a minimum adequate clearance
of 50mm/2” is provided around the unit to ensure efficient
and effective performance. Do not block vents by
stacking boxes on top or in front of unit as this could
affect performance.
Roof mounted pod storage refrigeration systems require
adequate ventilation as well.

Levelling/Castors/Feet

The Reach-In Blast Chillers/Chiller Freezers should
stand level to ensure correct operation of self-closing
doors and proper drainage of condensate from the
evaporator. All models (except WBC/WBCF50) feature
automatic evaporation so no drain is required.
Models fitted with castors are non-adjustable, therefore a
level platform/floor should be provided where cabinet is
to be located. Where swivel and brake castors are fitted

and when the unit has been positioned please ensure the
brakes have been activated by pressing the metal bar
down. Remember to release the brakes before trying to
move the unit. On models fitted with adjustable legs, lev­elling may be achieved by adjusting the bottom section of
the legs. For marine specification models with flanged
feet or deck fixing and bulkhead fixings, installation
should be carried out by a specialist marine company.

Shelf/Slide Fitting

When positioning the slides, present the slide to the
racking by holding it in the opposite hand to the side of
the unit you are installing the slides. Present the slide at
a 45° angle (see Figure 1). Once in place, let the slide
drop into position creating a horizontal ledge on which
the shelves will sit.

Fig. 1

Mains Supply Connection

Installation is to be carried out by a competent and qual­ified person or persons. Install according to local codes
and regulations and use the following:

Copper conductors only, for mains supply wiring.
Use conductors with a minimum cross-sectional area
(CSA) of 12AWG (4.00mm2).
Suitable overcurrent protective device (fuse/circuit
breaker) with a 10kA or greater braking capacity.

power supply before servicing.
* Applicable to the U.S.A cabinets only.

WBC/WBCF10 & 20 are single phase and come fitted

with moulded plug for safety and must be earthed. We
recommend that should the plug or cable fail contact
Williams spares office for a replacement part.

WBC/WBCF30 & 40 are single phase. They should be
connected to a 16A single phase supply by a qualified
refrigeration engineer or electrician.

WBC/WBCF50 are 3 phase. They should be connected
to a 16A 3 phase and neutral power supply. This should
be carried out by a qualified refrigeration engineer or
electrician.

If the cabinet has been laid on its back or tipped,
DO NOT switch on immediately. Leave in an upright
position for at least 1 hour before switching on.

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* WARNING! Risk of electric shock. Some
conductors remain live when the equipment
is in ‘Standby’ mode. Disconnect from the

NB: WBC/WBCF50 requires then condensate drain
pipe to be connected to a suitable 22mm (7/8”) waste
pipe or larger ‘P’ trap or routing to an open floor
drain. (This can be found at the base of the cabinet
rear).

LOADING AND USING YOUR BLAST CHILLER

The maximum temperature of product entering the Blast
Chiller/Chiller Freezer/Blast Freezer must not exceed
+90°C (194°F). Regulations state that product should be
placed in the Blast Chiller/Chiller Freezer/Blast Freezer
within 30 minutes from completion of cooking.
The packaging of food and the way in which it is loaded
or placed within the equipment can have a significant
effect on the time within which the temperature can be
reduced to the require level and the amount of food which
can be processed in each chilling or freezing batch.
(Maximum food thickness 50mm).
When blast chilling always use metal or foil containers
which are good conductors. Plastic or polyurethane
containers insulate the food from the cold air. When
chilling unportioned food we recommend the use of the
appropriate gastronorm tray or similar. Likewise, placing
lids or covers on food will also increase the chilling time
but may be of some use when processing some delicate
foods to avoid dehydration. When blast freezing bear in
mind how easy the finished produce will be to thaw.
Always load your machine in such a way that it is
possible for the cold air to contact all sides of the con­tainers. Avoid stacking containers directly on top of one
another as this will drastically extend the chilling time and
take special care not to block the air ducts.
Always load the machine before selecting the blast
facility. Unless it is unavoidable do not open the door of
the machine whilst the blast cycle is engaged.
When loading the cabinet/trolley please ensure the load
is equally distributed throughout the cabinet and ensure
air can circulate around and through stored products.

THERMOMETER

The controller is marked in Centigrade or Fahrenheit.
The Thermometer should be checked daily to ensure that
correct temperature is being maintained.
If the cabinet is operating at the wrong temperature due
to a fault the cabinet will alarm.

STORAGE TIMES

Chilled foods can be stored for up to 5 days at between
0°C (32°F) and +3°C (37°F).
Frozen foods can be stored for longer periods, in
general. for up to 8 weeks without loss of nutrients or
palatability. Beyond 8 weeks those foods with a high fat
content may display some signs of rancidity.
Nevertheless, some other foods can be stored for periods
longer than 8 weeks. Frozen food must be stored at
between -18°C (0°F) and -22°C (-8°F) or below.

Important: Once thawed, frozen food should not be
re-frozen.

CONTROL PANELS

PRINCIPLES OF OPERATION

Williams Blast Chillers/Chiller Freezers/Blast Freezers
have been designed to quickly reduce the temperature
of food in accordance with Department of Health
Guidelines on the chilling and freezing of cooked foods.
All operators should be conversant with latest European
Food Safety Legislation.
Further information is also contained in the Williams
Guide to Cook Chill which is available from Williams
Marketing Department - [phone].
Fast temperature reduction is not brought about by
placing the food in a very cold cabinet like a deep freeze.
This would only dry the food badly and would take a very
long time to reduce its temperature to the required level
increasing the risk to food safety. The secret of fast
temperature reduction is in delivering the correct blast of
air and ensuring correct and unobstructed horizontal air
flow inside the cabinet.
Williams range of Blast Chillers feature the option of soft
and hard facility on blast chill offering flexibility and
ensures food stays in prime condition whether it is
delicate pastries or fish, or heavier items such as lasagne
and meat casseroles.

Exceptions: depending on the density types and
sizes of the portions the chiller/freezer might not be
capable of achieving the required guidelines
therefore the load and/or depth of the food layers

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