Gram BAKER GA 950, BAKER GA 550 User Manual
765041938 Rev. 002 1
GRAM BAKER GA 950 / GA 550
User manual
765041938 Rev. 002 2
Gram Commercial A/S
Aage Grams Vej 1
6500 Vojens
+45 73 20 12 00
www.gram-commercial.com
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Contents
Application ............................................................................................................................................... 5
Safety information ................................................................................................................................... 6
Location ................................................................................................................................................... 7
Placement of multiple units next to each other ................................................................................... 9
General description ............................................................................................................................... 10
Electrical connection ............................................................................................................................. 11
Humidifier .............................................................................................................................................. 12
Water drain ............................................................................................................................................ 12
Water connection .................................................................................................................................. 13
General use ........................................................................................................................................... 14
Commissioning, functional description .............................................................................................. 15
Connection and disconnection of the main circuit breaker .............................................................. 16
User interface to the unit (touchscreen) ............................................................................................ 17
Settings for the unit: date, time and language .................................................................................. 17
Selection of language .......................................................................................................................... 18
Setting of clock (time).......................................................................................................................... 19
Setting the date .................................................................................................................................... 19
Setting of date format .......................................................................................................................... 20
Season: summer time/winter time ...................................................................................................... 20
Temperature measurement, units of Celsius or Fahrenheit. ........................................................... 20
Setting of ending times for programs for each weekday .................................................................. 21
Preconfigured programs ...................................................................................................................... 22
Selection and start of a program ........................................................................................................ 22
Selection of ending time for the program .......................................................................................... 23
Changing of established date and ending time for the program...................................................... 24
Changing of further settings before program start ............................................................................ 25
Display during program execution (fig. 32) ....................................................................................... 27
Changing a running program .............................................................................................................. 28
Interruption of the currently running program ................................................................................... 29
Storage of user-defined (own) programs ........................................................................................... 29
Manual programs ................................................................................................................................. 33
Deletion of a specially created program ............................................................................................ 33
Alarms/error messages ....................................................................................................................... 34
Temperature alarms ............................................................................................................................ 34
Sensor alarms ...................................................................................................................................... 35
Vapour system alarms ......................................................................................................................... 35
Other alarms ........................................................................................................................................ 35
Door closing mechanism ....................................................................................................................... 36
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Power failure ......................................................................................................................................... 36
Cleaning ................................................................................................................................................ 36
Door gaskets ......................................................................................................................................... 37
Long term storage ................................................................................................................................. 37
Service .................................................................................................................................................. 38
Disposal ................................................................................................................................................. 39
EC-Declaration of conformity ................................................................................................................ 40
Wiring diagram ...................................................................................................................................... 41
Piping diagram ...................................................................................................................................... 42
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ENGLISH
Thank you for choosing a quality product from Gram Commercial.
This manual will advise you how to install, use and maintain your new product.
Before our products leave the factory, they undergo a full function and quality test. Should
you nevertheless experience problems with the product, then contact your local dealer.
Gram Commercial subsidiaries and dealers placed all over the world are ready to help you.
Gram Commercial supplies warranty on all products.
This warranty is subject to correct use according to specifications, where e.g. common
maintenance and eventual repairs are carried out by Gram Commercial techicians or
technicians approved by Gram Commercial.
Changes in installation and other use of the procuct than prescribed in this manual, might
affect the operation and durability of the product.
The manual is written according to our current technical knowledge. We constantly work on
updating this information, and we reserve the right to make technical changes.
Application
This product is designed for storage of foodstuff at a constant temperature. The product may
not be used for chilling or freezing of foodstuff.
The product is only to be used for the purpose for which it has been expressly designed
(storage of cooled or frozen items). Any other use could cause that the products stored in the
product are not kept at the right temperature.
The manufacturer will not be held liable or responsible for any damage caused by improper,
incorrect or unreasonable use.
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Safety information
Important
Description of symbols used in this manual.
Warning
Lacking observation to these instrucions might result in accidents with
personal injury.
Important
If these instructions are not observed, the product might be damaged or
destroyed.
Be aware that Gram Commercial has taken precautions to ensure that the safety of the
product is in order.
Please read carefully the following information regarding safety.
It is important, that everyone who are to use or install the product, to have access to
this manual.
This appliance is not intended for use by persons with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been
given supervison or instruction concerning use of the appliance by a person
responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
The appliance might contain parts with sharp edges in the compressor
compartment, and in the inside compartment.
The appliance is not to be transported on a sack truck, there is a danger of loosing
the balance, causing danger to persons.
Do not pull the power cord to dicconnect the appliance, or when moving the
appliance.
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Location
When receiving the product, check the packaging material for damage.
If any damage occurs at the packaging material, it should be considered if the product might
have been damaged too. If the damage is substantial, please contact your dealer.
The transport pallet can be removed by loosening the screws that fasten the pallet to the
product.
This task requires at least 2 persons.The heaviest part of the product is at the top.
Be aware of this, when removing the transport pallet.
If the cabinet has been transported in horizontal position it must stand upright at
least 2 hours before it is started to allow the oil from the compressor to run back.
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Because of the heavy weight of the product, the floor might be damaged or
scratched when moving the product.
Correct set up gives the most effective operation.
The product should be located in a dry and adequately ventilated room.
To ensure efficient operation, it may not be placed in direct sunlight or against
heat-emitting surfaces. The product is designed to operate in an ambient
temperature between +16C and +40°C.
Avoid placement of the product in a chlorine/acid-containing environment
(swimming bath etc.) due to risk of corrosion.
The product and parts of the interior is equipped with a protecting film, which
should be removed before use.
Clean the product with a mild soap solution before use.
The set up place must be level and horizontal.
For versions with legs, use the adjustable legs to make sure that the product stands
level and upright.
For versions with castors, the locking devices of the two front castors must be activated,
when the product is in place. The base must be level, and the product may not be placed on
frames or the like.
Fig. 2
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Placement of multiple units next to each other
Depending upon the temperature and humidity at the installation location as well as the
correct values being set, water contained in the surrounding air may condense on the surface
of a refrigerator (condensation formation) due to the design.
If multiple refrigerators or freezers are placed next to each other, then this condensation
effect is stronger, plus a smaller amount of air would then circulate between the units.
Hence, the minimum distance between the units must be 40 mm.
This space must not be closed off at its top or bottom, however due to aesthetical
considerations it may be covered in the front by, for example, a stainless steel panel. In order
to be able to clean this space, the panel must be detachable.
If it is not possible to establish free air circulation at the bottom via, for example, installation
on a pedestal, then the space must not be fully sealed at the front.
Min. 40 mm
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General description
Condenser with air filter
Compressor
Display
Front panel
Vapor system
Door
Gasket
Air inlet
Air distribution plate
Foot pedal opener
Wall rail
Supports
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Electrical connection
Read the text below thoroughly before electrical connection.
The product is intended for connection to alternating current. The connection
voltage (V) and frequency (Hz) are shown on the name plate in the cabinet. Only
the supplied cord is to be used.
Never use an extension cord for this appliance!
If a wall socket is placed in a longer distance than the length of the supplied power
cord, contact an electrician to establish a wall socket within the range of the
supplied power cord.
If the product is defective, it must be examined by a service electrician advised by
Gram Commercial during the guarantee period, if it is a product with built-in
compressor.
If it is a product connected to an external compressor unit, it must be examined
by the company who has connected the product to the unit.
Outside the guarantee period, it is advisable to use the service advised by Gram
Commercial, if possible. If this is not the case, assistance is required from
a refrigeration company with knowledge of Gram’s products.
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Always disconnect the power if interruptions in power supply occur, and when electrical parts
are removed/put on, and before cleaning and maintenance of the product.
Repairing of electrical/technical parts may only be performed by a service electrician from
Gram Commercial or an authorised refrigeration company with knowledge of Gram’s
products.
Do not use the product before all coverings are installed, so that live or rotating machine
parts can not be touched.
The product is not to be used outdoor.
All earthing requirements stipulated by the local electricity authorities must be observed. The
plug and wall socket should then give correct earthing. If necessary, contact an electrician.
Make sure the product is switched off at the socket before service is
performed on electrical parts. It is not sufficient to switch off the product
by the START/STOP key as there will still be voltage to some electrical
parts of the product.
Humidifier
The cabinet is equipped with a humidifier that provides steam during proving. The humidifier
consists of a water tank heated by electrodes. From the tank, steam is led into the cabinet
through a pipe. The tank is automatically filled from the water supply.
The tank can be flushed by switching the cabinet off at the main switch and then switching it
on again. In addition, the system is automatically flushed regularly depending on water
quality.
For further information on servicing and maintaining the humidifier, please
consult the "Service and operation manual". For maintenance of the humidifier,
request service assistance.
Water drain
Defrost water and water flushed from the humidifier
are led away through a pipe on the rear of the
cabinet. A water seal must be installed between
cabinet and drain.
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Water connection
To provide proper steam production, the humidifier must be connected to a water supply. To
assure ideal steam production, it is important that the electrical conductivity of the inlet water
is measured by the installer, to assure it is within standard range. See Below Box!
Please note the following:
The electrical conductivity of the water must be in the range: 200-800 µS/cm.*
The temperature of the inlet water must not exceed 40°C.
The water pressure must be in the range 1-10 bar.
A shut-off valve, a check valve, and a filter if necessary, must be fitted to the supply pipe.
*If the electrical conductivity of the water is outside the above mentioned standard range (200
– 800 µS/cm) some controller settings, might need adjustment in order to maintain proper
steam production. These adjustments must be done by a service technician, and are
described in the service manual.
Indications that water conductivity is outside of standard range are:
Too poor steam production
Frequently having boiler overfilled alarm
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