Hobart UP, UPT, UX, UXT Installation And Operation Instructions Manual
Starting from Serial No.:
UTENSIL WASHING MACHINES
INSTALLATION AND
OPERATION INSTRUCTIONS
(original instructions)
REV. 08.10.20108664 0001
UP(T)/UX(T) SERIES
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IMPORTANT NOTES
USE IN ACCORDANCE WITH REGULATIONS:
The machine is technical work equipment for express use in the work place.
The machine is exclusively to be used to wash ware such as pots and pans, baking sheets, cutlery,
trays etc.
Do not use for electrically heated cooking and heat conservation appliances.
Do not put heavy objects on the top of the machine.
SAFETY:
Never hose down the machine.
Do not stand on the open front door of the machine.
The “Attention” symbol is shown beside instructions that are essential for the safe
operation of the machine.
Please read these passages thoroughly.
LIABILITY:
Installations and repairs which are carried out by non-authorized technicians or the use of other than
original spare parts, and any technical alterations to the machine, may affect the warranty set
out in the standard conditions of sale.
MACHINE NOISE LEVEL:
The machine noise level is < 68 dB (A).
CONNECTING TENSIONS:
The machine described in this operation manual has following connecting tensions:
400 V/50 Hz/3 Ph/N/PE.
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CONTENTS Page
1. INSTALLATION ...........................................................5
1.1. Location .............................................................................................5
1.2. Electrical Connection ...........................................................................5
1.3. Water Connection ................................................................................6
1.4. Steam Connection (Steam-Heated Machines Only) ..................................6
1.5. Adjustment of Shut-off Valve for Steam Supply .......................................7
1.6. Drain Connection .................................................................................7
2. DISPENSER CONNECTION ..........................................8
3. CONTROLS ..............................................................10
4. START UP ................................................................11
4.1. Detergent .........................................................................................11
4.2. Rinse Aid ..........................................................................................11
4.3. Chemical Deficiency Sensor ...............................................................11
4.4. Priming the Suction Hoses .................................................................12
4.5. Softener (Optional) .............................................................................13
5. OPERATION .............................................................14
5.1. Preparation .......................................................................................14
5.2. Run ..................................................................................................15
5.3. Select Program .................................................................................16
6. SWITCH-OFF AND CLEANING THE MACHINE..............17
6.1. Switch-off..........................................................................................17
6.2. Cleaning (Daily) ..................................................................................17
6.3. Cleaning (Weekly) ..............................................................................17
6.4. Hygiene Cycle ...................................................................................18
7. TEMPERATURE PREVIEW ..........................................19
8. FAULTS/INDICATIONS ...............................................20
9. SETTINGS AND COUNTER VALUES ............................21
9.1. Adjustment of Detergent Dosage Quantity ...........................................21
9.2. Adjustment of Rinse Aid Dosage Quantity ............................................21
9.3. Adjustment of Water Hardness ............................................................22
9.4. Cycle Counter ...................................................................................22
9.5. Water Consumption Counter ...............................................................22
9.6. Activation/Deactivation of Acoustic Signals ..........................................23
9.7. Activation/Deactivation of Chemical Sensor .........................................23
9.8. Control of the Detergent Dosage Pump ...............................................23
9.9. Control of the Rinse Aid Dosage Pump Display CH2 .............................24
9.10. Termination of Setting Mode/Counter Display ......................................24
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CONTENTS Page
10. FROST PREVENTION ................................................25
11. MAINTENANCE ........................................................26
12. TROUBLESHOOTING GUIDE ......................................27
12.1. Poor Wash Result ..............................................................................27
12.2. Other Malfunctions.............................................................................28
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1. INSTALLATION
1.1. LOCATION
! Wall clearance is not required at the rear.
! The lateral distance between machine and wall should be at least
400 mm on one side.
! To avoid damage of the feet, do not slide the machine on floor after
the skid is removed.
! Level machine by turning the feet.
! Distribute machine weight equally onto all feet.
1.2. ELECTRICAL CONNECTION
Must be carried out by an authorized technician according to
the local and national codes.
For Australia: in accordance with AS/NZS3500.1
! The electrical supply shall comply with the name-plate data.
! Modification to a different electrical supply is possible within the
range of variations designated in the circuit diagram.
! Line fuses and cable cross section shall comply with the require-
ments.
! A cut-off device shall be provided to connect the supply cord (isolat-
ing switch or accessible plug device).
NOTE: According to EN 60 335 the appliance must be connected to
an equipotential conductor. The connecting screw (
) is locat-
ed at the rear of the floor pan beside the cable inlet.
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1.3. WATER CONNECTION
Must be carried out by an authorized technician according to
the national and local codes.
The machine must be operated with potable water. For water
with an extremely high mineral content, an external demineralisation is strongly recommended.
! Water temperature:
• If possible, connect to warm water (max. 60 °C).
• Machines with drainwater/exhaust heat recovery:
If possible, connect to cold water (approx. 10 °C).
! Water hardness:
• Machines without softener: max. 3.75° Clark = 0.5 mmol/l.
• Machines with softener: max. 37.5° Clark = 5.3 mmol/l.
! Special feature of PREMAX model UPT:
• Additional separate warm water connection (marked red) for
quicker filling of wash tank.
• If the separate filling of the wash tank with warm water cannot
be realized on site, a HOBART trained service technician must
switch to booster filling via parameter adjustment (S20).
! Line flow pressure:
• Machines without softener: 0.5 - 10 bar
• Machines with softener: 0.8 - 10 bar
• If the line flow pressure is above 10 bar, provide pressure
reducer at source.
! Connect the union nut “A” (3/4”) of the water supply hose to the
site shut off valve.
! Do not kink or cut the supply hose.
! If an extended supply hose is required, use one of the same specifi-
cations as the original.
1.4. STEAM CONNECTION
(STEAM-HEATED MACHINES ONLY)
Must be carried out by an authorized technician according to
the local and national codes.
! Connection to steam supply (DN 20),
0.5 - 3.5 bar (max. 150 °C). See data plate!
! Dimension of steam and condensate piping has to be according to
the requirements.
! The machine is equipped with all necessary fittings.
! Make sure that permissible pressures and temperatures will not be
exceeded.
!
1. INSTALLATION
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1.5. ADJUSTMENT OF SHUT-OFF VALVE FOR
STEAM SUPPLY
! The built-in shut-off valve is equipped with an adjustment device (A)
to limit the steam flow rate. A special tool is necessary for
adjusting the valve-seat.
Attention:
The correct adjustment is very important particularly for higher
pressure, and therefore must be done by a HOBART-trained
service technician at first installation or after any changes are
done at the customer site.
! The adjustment is correct if the heating-up time of the boiler is
as long as the shortest wash cycle, while the valve is opened to
maximum.
! If adjusted too far open pressure shocks may occur when the
solenoid valve closes. This could cause damage at the installation. If adjusted too far close the required heating-power cannot be
achieved.
1.6. DRAIN CONNECTION
! Connection between machine and site drain must not exceed max.
height of 0.80 m.
! Do not place the drain hose loosely on the floor (the hose could be
rubbed through). Fix it at site!
! Do not kink the drain hose.
"
30°-45°
0,80m
1. INSTALLATION
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Generally, all models leaving the factory are equipped with integrated
dispensers.
When retrofitting with other dispensers, please follow the instructions
below.
Attention:
All below-mentioned steps must be carried out by service technicians qualified by Hobart.
Before removing the housing, make sure the machine is voltage-free. Make sure to observe all precautionary measures
required when working near live components.
! Tank must be drained.
! Switch off main switch or unplug.
! Remove front panel.
To connect a liquid detergent dispenser:
! For rinse aid dosage, a dosage nipple is available on the top of the
booster.
! Connect a hose (PVC / Ø 6 mm outside × Ø 4 mm inside) between
outlet of the detergent pump and the detergent inlet (A) of the wash
tank. Tighten with hose clamp.
! Install detergent pump or mount externally.
2. DISPENSER CONNECTION
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To connect a powder or solid detergent dispenser:
! Remove the rear panel.
! Drill a hole through the inner tank wall appropriate to the required
connection diameter (see fig.).
! Screw the dosing connection tightly to the tank wall.
! Connect the plug (B) of the wire harness with the dosage pump
(max. 100 VA).
Conductivity probe:
! Conductivity probe should be installed at the flat part of tank bot-
tom (see fig.).
! The hole size should be appropriate to the conductivity probe.
! Put panel(s) back into place.
! Switch on main switch at site or put the plug in.
! Dispenser and chemical sensor adjustment (see section 9.).
2. DISPENSER CONNECTION
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