Hupfer Buffetcart Plus BC-40 User manual

Read the instructions prior to performing any task!
Mobis/P BC-40, BC-25
Mobis® Buffetcart Plus
Operating instructions

All texts, figures and graphic designs are protected by
copyright. Reproduction, distribution and issuing are permitted
for internal company purposes only. © Hupfer Metallwerke
GmbH & Co. KG, Coesfeld 2023
Hupfer Metallwerke GmbH & Co. KG
Dieselstraße 20
48653 Coesfeld
Telephone: + 49 (0) 2541 805-0
Email: [e-mail]
Internet: www.hupfer.com
Manufacturer information
Index: 5, en_GB
Document information
Last update: 15.08.2023

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Mobis® Buffetcart Plus
Operating instructions
Table of contents
1 General information............................................................... 5
1.1 Product information......................................................... 5
1.2 Target group.................................................................... 5
1.3 Symbols.......................................................................... 6
1.4 Signs............................................................................... 6
1.5 Conformity....................................................................... 7
2 Product description............................................................... 8
2.1 Function.......................................................................... 8
2.2 Overview......................................................................... 8
2.3 Equipment features......................................................... 11
2.4 Variants........................................................................... 13
2.5 Equipment options.......................................................... 13
2.6 Technical data................................................................. 14
2.7 Rating plate..................................................................... 15
3 Safety information................................................................. 15
3.1 Intended use................................................................... 15
3.2 Improper use................................................................... 16
3.3 Safety instructions........................................................... 16
3.3.1 General information............................................... 16
3.3.2 Transport................................................................ 17
3.3.3 Operation and use................................................. 17
3.3.4 Cleaning................................................................. 17
3.3.5 Maintenance.......................................................... 17
3.3.6 Safety devices....................................................... 18
4 Transport................................................................................ 18
4.1 Delivery........................................................................... 18
4.2 In-house transport........................................................... 18
4.3 Lifting.............................................................................. 19
5 Commissioning...................................................................... 19
6 Operation................................................................................ 20
6.1 Operating the transport cart............................................ 20
6.2 Moving the cart............................................................... 22
6.3 Keeping food cold........................................................... 27

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Mobis® Buffetcart Plus
Operating instructions
6.4 Serving food.................................................................... 27
6.5 Finishing operation.......................................................... 28
7 Care and cleaning.................................................................. 30
7.1 Cleaning intervals........................................................... 30
7.2 Permissible cleaning types............................................. 31
7.3 Permissible cleaning agents........................................... 33
7.4 Material compatibility...................................................... 34
7.5 Manual cleaning.............................................................. 35
7.6 Disinfecting..................................................................... 35
8 Maintenance and repair......................................................... 36
8.1 Maintenance intervals..................................................... 36
8.2 Maintenance activities..................................................... 37
8.3 Error messages............................................................... 38
8.4 Troubleshooting.............................................................. 39
8.5 Repairs and spare parts.................................................. 40
8.6 Recommissioning............................................................ 40
9 Disposal.................................................................................. 42

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Mobis® Buffetcart Plus
Operating instructions
■Servicing or repairing the electrical installation within the product
■Rectifying electrical faults
■Maintenance work on mechanical systems or trained activities on
the electrical, cooling or heating systems
■Simple repairs
■Appropriately trained employees of the customer or an employee of
the manufacturer
■Standard operating steps
■Rectifying faults as described in the “Troubleshooting” section
■Cleaning
The operator or an authorised person must carry out the work.
■Check the condition of the entire unit
■Determine maintenance requirements
■Assembling, dismantling, servicing or disposing of a system within
the product
■Rectifying faults
1 General information
1.1 Product information
This document applies to the following products:
Product name Mobis® Buffetcart Plus
Cooling Eutectic plate, fan-assisted cooling and
refrigeration technology
1.2 Target group
These operating instructions are intended for the following groups of
people who perform the listed activities with or on the product:
Electrician
Maintenance engineer
Operating staff
Operator
Refrigeration specialist

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Mobis® Buffetcart Plus
Operating instructions
1.3 Symbols
DANGER
“Danger” indicates a hazardous situation that will result directly in
death or serious injury.
WARNING
“Warning” indicates a hazardous situation that may result in serious
injury.
CAUTION
“Caution” indicates a potentially hazardous situation that may result in
minor to moderate injury.
NOTICE
“Notice” indicates a situation that may result in damage to property.
“Notes” give tips on the correct use of the product.
1.4 Signs
Warning of electric current
This warning symbol is attached at points on the product where the
electrical circuits are installed.
Warning of flammable substances
This warning symbol is attached to points where hazards are caused
by flammable substances.
Do not use pressure washers and steam cleaners
This warning symbol means that no steam cleaners or pressure
washers may be used on or around the product.

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Mobis® Buffetcart Plus
Operating instructions
1.5 Conformity
Manufacturer Hupfer Metallwerke GmbH & Co. KG
Address Dieselstraße 20
D-48653 Coesfeld
Contact + 49 (0) 2541 805-0
[e-mail]
www.hupfer.com
This document applies to the following products:
Product name Mobis® Buffetcart Plus
Cooling Eutectic plate, fan-assisted cooling and
refrigeration technology
Hereby the manufacturer declares that the product complies with the
requirements of the following European legislation:
■2006/42/EC – Machinery Directive
■2014/35/EU – Low Voltage Directive
■2014/30/EU – EMC Directive
In addition, the following harmonised standards have been applied:
■DIN EN ISO 12100
■DIN EN 60204-1
■DIN EN 60335-1
Coesfeld, 23.06.2023
Helmut Schumacher Willem Kruit
Managing Director Development Manager

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Mobis® Buffetcart Plus
Operating instructions
2 Product description
2.1 Function
Mobis® Buffetcart Plus for storage, transport, cooling and serving of
breakfast, evening meal and snacks in communal catering.
2.2 Overview
Overview of Mobis® Buffetcart Plus – BC-40
Fig. 1: Overview of Mobis® Buffetcart Plus – BC-40
1 Frame top for service trolley with sneeze guard
2 Bars for attaching GN containers
3 Card holder (optional)
4 Drip tray for beverage dispenser (optional)
5 Gallery and handle bar for pushing
6 Fixing point of the tabletop
7 Swivel castor
8 Uncooled drawer block
9 Storage compartment for trays
10 Bread roll drawer
11 Cooled drawer block
12 Fixed castor
13 Hook-on container
14 Mains plug and display for control of fan-
assisted cooling
15 Cooling plate with cover plate
16 Stacking compartments for porcelain crockery
The arrangement of the components may vary depending on the con-
figuration.

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Mobis® Buffetcart Plus
Operating instructions
Overview of Mobis® Buffetcart Plus – BC-40 with HDS Alma drive
Fig. 2: Overview of Mobis® Buffetcart Plus – BC-40 with HDS Alma drive
1 Top frame with sneeze guard
2 Bars for attaching GN containers
3 Card holder (optional)
4 Controls
5 Fixing point of the tabletop
6 Swivel castor
7 Uncooled drawer block
8 Bread roll drawer
9 Built-in metal hydride battery and tray compart-
ment
10 Drive unit with foot pedal
11 Cooled drawer block
12 Fixed castor
13 Hook-on container
14 Mains plug and display for control of fan-
assisted cooling
15 Cooling plate with cover plate
16 Gallery and handle bar for pushing
17 Stacking compartments for porcelain crockery
The arrangement of the components may vary depending on the con-
figuration.

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Mobis® Buffetcart Plus
Operating instructions
Overview of Mobis® Buffetcart Plus – BC-25
Fig. 3: Overview of Mobis® Buffetcart Plus – BC-25
1 Frame top for service trolley with sneeze guard
2 Bars for attaching GN containers
3 Drip tray for beverage dispenser (optional)
4 Mains plug (installed at the rear)
5 Impact protection
6 Swivel castor
7 Central lock tread (optional)
8 Uncooled drawer block
9 Display for controlling the fan-assisted cooling
10 Fixed castor
11 Cooled drawer block
12 Gallery and handle bar for pushing
13 Cooling plate with folding cover plate
The arrangement of the components may vary depending on the con-
figuration.

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Mobis® Buffetcart Plus
Operating instructions
2.3 Equipment features
Cooling
The Buffetcart is equipped with a N’Ice & Easy® cooling system. The
main element of the cooling system is an integrated cold storage unit,
which can be used to ensure that food is kept cool for up to 2 hours,
even in de-energised operation. The cooling compartment is designed
to keep food cool. The cooling plate integrated into the work surface is
mounted above the cold storage unit and is automatically cooled by it.
When not in use, cover the cooling plate with the cover plate supplied.
Water condenses on the cold cooling plate and
freezes into ice.
−Always cover the cooling plate when not in use.
The refrigeration system consists of two independently controlled cir-
cuits:
■The condensing unit builds up cold in the cold storage unit.
■The automatic fan-assisted cooling controls the circulation of air
between the cold storage unit and the cooled drawer block.
The intelligent control system regulates the cooling and defrosting
cycle. The times for serving food are programmed specifically to the
project and can be modified by a service engineer. To begin the saved
serving time, the cold storage unit is cooled completely and the Mobis
Buffetcart can be operated for up to 2 hours without being connected
to the mains. At the end of the 2‑hour serving time, the Buffetcart must
be connected to the power supply again so the control system can cool
the cold storage unit again.
NOTICE
Cooling failure due to icing
Iced cooling fins prevent air circulation in the cooled drawer block.
Cooling cannot be guaranteed.
−Always leave the control switched on.
−Always close the drawers completely.
−Cover the cooling plate after food distribution.
−Open the drawers only briefly.
The automatic recirculation function in the cooling block is switched
on depending on the temperature when the control system is switched
on. An internal rechargeable battery supplies the fans and the control
system of the recirculation function even when not connected to the
mains. When the Buffetcart is connected to the power supply, the bat-
tery is charged. The recirculation function must be switched on when
in operation and in operation when not connected to the mains. The
temperature in the cooling block may rise slightly at the end of the
maximum serving time of 2‑hours. The set temperature is restored
when the Mobis Buffetcart is reconnected to the power supply.

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Mobis® Buffetcart Plus
Operating instructions
The refrigerant used in the cold storage unit is harmless to health and
the environment. The liquid in the cold storage unit is a mixture of
Glysofor L and water. Even when in contact with food, this refrigerant is
non-toxic and environmentally harmless.
The Mobis Buffetcart has an evaporator, which hygienically vaporises
condensation from the cooling compartment.
Evaporation
If the Mobis Buffetcart is moved after a long period
of being stationary, high levels of condensation can
form. Condensation creates a visible cloud of steam
in the evaporator.
On new Mobis Buffetcarts, condensation in the col-
lecting hoses can take on an odour of polymers which
is noticeable during the evaporation process.
Drawers
All the drawers have frames for hanging Gastronorm containers on.
Each drawer fits a Gastronorm 1/1 container or the corresponding
number of smaller containers in sizes 1/2, 1/3 or 2/4.
Each drawer is of a certain height so that different sized Gastronorm
containers can be hung in it. The Gastronorm containers are not sup-
plied.
Drip tray
The drip tray is a space for two thermos flasks on the tabletop of the
Buffetcart. The drip tray prevents liquid from dripping onto the work
surface. The drip tray is made of stainless steel and can be cleaned in
a washing device.
Cover plate
The uses of the cover plate include the following:
■Cover for the cooling plate
■Cover for the GN container with bread or rolls
■Cutting board
The cover plate can be cleaned in a washing device.

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Mobis® Buffetcart Plus
Operating instructions
HDS Alma
The Hupfer drive system (HDS) Alma consists of a drive and a control
unit. The drive accelerates and decelerates the cart. The drive makes it
easier to move the cart.
The HDS Alma drive is electric and is powered by a battery. Charging
takes place automatically when the Mobis Buffetcart is connected to
the power supply, for example in order to cool the eutectic plate. The
key can be used to switch the drive on and off and to prevent unauthor-
ised access.
The drive is located on the underside of the cart and consists of
the drive rollers and an electric motor with differential. The drive is
equipped with a motor brake. The HDS Alma drive can propel the cart
at up to 5.5 km/h. The drive has two wheels, which are pressed to
the by with a spring. The centrally mounted drive is attached in a fixed
direction and can be raised for sideways movement or maintenance,
for example.
2.4 Variants
The Mobis® Buffetcart Plus is available in two versions:
■Mobis® Buffetcart Plus – BC-25 to cater for up to 25 people
■Mobis® Buffetcart Plus – BC-40 to cater for up to 40 people
The versions differ as follows:
■Drawer layout
■Size of the tray storage compartment
■Equipment with/without stacking compartments
Both versions are equipped with the same cooling technology and
safety features. Also, the same optional accessories are available for
both versions.
2.5 Equipment options
Central lock tread For simultaneous foot actuation of the central
locking device or direction lock of the swivel cas-
tors
Swivel castors with
direction lock
When engaged, the direction lock fixes the
wheels straight ahead
Hinged shelf With handle openings for GN containers
Card holder For holding documents and information
Drip tray As a base for beverage dispensers to collect liq-
uids during beverage distribution.
HDS Alma Drive for accelerating and decelerating the cart

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Mobis® Buffetcart Plus
Operating instructions
2.6 Technical data
Mobis/P BC-40 Mobis/P BC-25
Mains voltage V 230 230
Frequency Hz 50 50
Electronic back-up
fuse
A 16 16
Power -- See product data sheet
Refrigerant in the
cooling circuit
-- R600a R600a
Refrigerant in the
eutectic plate
-- Mixture of Glysofor L and water
Cooling temperature of
the cold plate
°C -3 to +12 -3 to +12
Operating and ambient
conditions
°C +10 to +30 +10 to +30
Dimensions1
W × D × H
mm 1,530 x 780 x 1,470 1,140 x 780 x 1,470
Weight1kg See rating plate (the actual weight varies depending on the equip-
ment)
Load bearing capacity kg 150 100
Max. load per drawer kg 15 15
Optional equipment
HDS Alma
Power kW 0.5
Total weight kg 46
Maximum speed km/h 5.5
Voltage V 24 DC
1 The figures are approximate values. Deviations are possible.

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Mobis® Buffetcart Plus
Operating instructions
2.7 Rating plate
Fig. 4: Rating plate
1 Manufacturer and address
2 Type designation and product code
3 Order number
4 Total weight
5 Payload, total
6 Electrical connection
7 Model year
8 Product code as barcode
9 Electrical serial number
10 Induction frequency
11 Refrigerant
12 Refrigeration capacity
13 Protection code
14 Certification mark/CE label if available
15 Disposal of old appliances
3 Safety information
3.1 Intended use
The Buffetcart is designed for the distribution of food by the operator’s
staff. The Buffetcart may only be moved on flat surfaces.
If the Buffetcart is equipped with a continuous gallery, items may be
transported on the top of the cart. Make sure all transported items
stand firmly on a non-slip mat to prevent them from falling off.
The Buffetcart is used for cooling food in the cooled drawer block. For
reliable cooling, the cooling-defrosting cycle of the Buffetcart must be
observed.
Any use other than or beyond this is considered inappropriate.
Intended use includes following the prescribed procedures, complying
with the given specifications, and using the genuine accessories that
are provided or additionally available. Any other use of the cart is
considered inappropriate.

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Mobis® Buffetcart Plus
Operating instructions
3.2 Improper use
All uses other than the intended one are improper. Improper use of the
Buffetcart may result in damage or injury.
In particular, make sure that the following inappropriate uses are
avoided:
■Use as a self-service trolley
■Placing items on top of Buffetcarts without a continuous gallery
■Using Buffetcarts to sit or climb on
■Structural modifications to the Buffetcart
■Using the Buffetcart in a defective condition and/or without protec-
tive coverings or safety devices
■Operation with safety devices that are not in perfect condition, or
are bypassed or out of service
■Operation of the Buffetcart in a potentially explosive atmosphere
It may not be used for transporting living creatures. Persons must not
sit or stand on or in the cart.
In the case of improper use, the manufacturer and suppliers shall
assume no liability for resulting damage. Damage caused by improper
use shall result in loss of liability and of guarantee claims.
3.3 Safety instructions
3.3.1 General information
The transport cart may only be used in a technically sound condition,
while taking risks and safety into consideration, for its intended pur-
pose and in accordance with the operating instructions.
All operating elements and controls must be in a technically sound
condition and function reliably.
Before each use, the transport cart must be checked for any visibly
apparent damage or defects. If damage occurs, immediately notify
those responsible and shut down the transport cart.
Changes or conversions are only permitted after consultation and
written consent from the manufacturer.
Transport carts can move off under their own weight and in an uncon-
trolled manner if the wheels are not locked and the direction lock is
engaged.

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Mobis® Buffetcart Plus
Operating instructions
3.3.2 Transport
If the appliance has to be lifted, only use lifting gear and load-bearing
equipment approved for the weight of the device.
Only use transport vehicles that are approved for the weight of the
transport vehicle.
The trolley has no attachment points for attaching eyes or similar lifting
aids.
Transport trolleys with loosened directional fixation lurch during when
moving. On inclined planes, trolleys with a loose directional can move
independently and in an uncontrolled manner, e.g. on loading e.g. on
loading ramps. Only loosen the directional lock briefly when the trolley
is stationary and on horizontal levels, e.g. to to move sideways.
When the trolley is transported, the trolley must be additionally
secured. The wheel locks are not sufficient to secure the trolley for
transport. They must not be locked during transport on the truck, as
the locking mechanism will be damaged by the forces that occur the
locking mechanism will be damaged.
3.3.3 Operation and use
Transport carts can move off independently and in an uncontrolled
manner if the wheels are not locked. Secure the stationary transport
cart against rolling away.
Do not park on sloping ground. Only move transport carts with the
locks released. Moving with the locks engaged will damage the
chassis. Castor locks are not brakes. Only engage the locks when the
transport cart is stationary. Only release the direction lock briefly when
the transport cart is at a standstill and on level ground, e.g. to move it
sideways.
Keep an overview of the route and move the transport cart with fore-
sight, for example by pulling when necessary. Watch out for children,
other persons and obstacles. Do not move the transport cart over
steps. Two people should move the transport cart on slopes.
When fully loaded, never open all drawers at the same time, otherwise
the transport cart may topple over.
Never try to catch a transport cart that is falling over. Transport carts
are heavy and can cause serious injury. Move the transport cart with
foresight.
3.3.4 Cleaning
The transport cart must not be cleaned with high-pressure or steam
cleaners.
3.3.5 Maintenance
Troubleshooting may only be carried out by maintenance technicians.

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Mobis® Buffetcart Plus
Operating instructions
Work on electrical equipment may only be carried out by electricians.
The work must be carried out in compliance with the rules of electrical
engineering.
Work on the refrigeration system may only be carried out by refrigera-
tion specialists. The work must be carried out in compliance with the
rules of refrigeration engineering.
3.3.6 Safety devices
The following devices on the Buffetcart are relevant to safety:
■Safety glass in the top frame
■Gallery to prevent items from falling off
■Locks on the wheels to hold the cart when parked
■Self-closing mechanism on the drawers, which keeps them closed
even in curves
■Temperature sensor in the fan-assisted cooling, which switches off
the convection when the required temperature in the cooled drawer
block is reached
■Direction lock on the swivel castors. The direction lock must be
activated when moving the cart and on sloping ground. Only
release the direction lock to move the cart sideways.
■Emergency stop switch for Buffetcarts with HDS Alma drive. Press
the emergency stop switch to stop the moving cart in an emer-
gency.
■Sheet metal cover to protect the metal hydride battery. Work on
electrical components may only be carried out by qualified per-
sonnel.
4 Transport
4.1 Delivery
Delivery is performed by a transport company, whose specialists are
responsible for securing the load during transport. At the place of
delivery, the transport cart can then be moved on its own wheels.
4.2 In-house transport
A lift must always be used for transport to another floor. The transport
carts are not designed to be pushed up or down slopes such as wheel-
chair ramps.
Only use transport vehicles that are approved for the weight of the
transport cart.
1. Close the drawers.
2. Release the locks.
3. Fix the wheels in the “straight ahead” position.

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Mobis® Buffetcart Plus
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4.3 Lifting
The transport cart does not have any attachment points for eyelets or
similar lifting aids.
Always transport the transport cart upright if possible. It can be lifted
using a lifting platform, for example.
5 Commissioning
CAUTION
Contusion hazard
The transport cart is heavy, and if it rolls away out of control, there is
a risk that people may be injured by being hit or crushed.
−Each time you park the transport cart, secure it with both locks
against rolling away.
−The transport cart may only be parked on horizontal surfaces.
−Fix the wheels in the “straight ahead” position.
NOTICE
Compressor damage
After delivery, the compressor oil must settle or compressor damage
will occur.
−Let the transport cart stand upright and still for at least 8 hours.
−Do not connect the transport cart to the mains immediately.
NOTICE
Instructing operating staff
Before commissioning, operating staff must be instructed on how to
use the devices correctly.
Help protect our environment. Separate the pack-
aging materials and recycle them. Dispose of:
−Packaging and foils in the (yellow) recycling bin.
−Cardboard boxes and paper in the paper recy-
cling bin.
After delivery, the transport cart must stand upright and still for at least
8 hours. Do not connect the cart to the mains during this time.
Clean the transport cart thoroughly before first use (see cleaning
instructions).

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Mobis® Buffetcart Plus
Operating instructions
It is important that the cooling device is completely cooled before first
use. This is how to do it:
1. Reconnect the transport cart to the power supply with the sup-
plied connection cable.
2. Press the on/off switch.
🡆The display shows the current temperature inside the cooling
compartment.
3. If necessary, adjust the required temperature. The factory default
setting is 4 °C, see ⮫‘Operating the cooling system’ on page 21
4. Close all drawers.
5. Cover the cooling plate with the cover.
6. Leave the transport cart connected to the power supply continu-
ously for at least 12 hours.
🡆The transport cart is completely cooled.
🡆The cart can be loaded, separated from the power supply, and
used for serving food.
6 Operation
6.1 Operating the transport cart
Fig. 5: Controls on the Buffetcart with HDS Alma drive
1 Speed selector switch
2 On/off switch with key
3 Emergency stop button.
4 Toggle switch for speed selection
5 Push handle