Instruction Manual for BUFFALO models including: Commercial Dishwasher with Drain Pump, Dishwasher, Drain Pump, DW319, 500mm

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Chemical Feeders Priming Your Buffalo Dishwasher has a detergent pump and a rinse-aid pump for use with containers of NON-FOAMING liquid detergent. 1. Insert the hoses of the pumps in the correct chemical container (clear tube for

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user manual dw319
Dishwasher
Instruction manual
Model: DW319

Safety Tips

 Position on a flat, stable surface.

 A service agent/qualified technician should carry out installation and

any repairs if required. Do not remove any components on this

product.

 Consult Local and National Standards to comply with the following:

·

Health and Safety at Work Legislation

·

BS EN Codes of Practice

·

Fire Precautions

·

IEE Wiring Regulations

·

Building Regulations

 DO NOT immerse the appliance in water.

 Always switch off and disconnect the power supply to the appliance

when not in use.

 Not suitable for outdoor use.

 Keep all packaging away from children. Dispose of the packaging in

accordance to the regulations of local authorities.

 Children should be supervised to ensure they do not play with, or

operate the Dishwasher

 The function of this Dishwasher is the washing of Dishes and similar

ONLY.

 Do not use cleaning agents that contain Chlorine, Bleach or

Hypochlorite

 Only use commercial grade detergents and rinse aids in your

Dishwasher

 Wear the correct personal protective equipment when handling

chemicals and observe all safety notes

 Damage to the Dishwasher caused by lime scale or poor water quality

will NOT be covered by the manufacturers warranty ­ fitting of a water

softener is recommended

 The installer and user are responsible for ensuring the installation and

operation of this Dishwasher

 Ensure the base of the unit is never submerged or standing in water

when operating the Dishwasher

 Do not use electrical extension lead(s) to supply power to your

Dishwasher

 If the power cord is damaged, it must be replaced by a BUFFALO agent

or a recommended qualified technician in order to avoid a hazard.

 This appliance can be used by children aged from 8 years and persons

with reduced physical, sensory or mental capabilities or lack of

experience and knowledge if they have been given supervision or

instruction concerning use of the appliance in a safe way and if they

understand the hazards involved. Children shall not play with the

appliance. Cleaning and user maintenance shall not be made by

children without supervision.

Introduction
Please take a few moments to carefully read through this manual. Correct maintenance and operation of this machine will provide the best possible performance from your BUFFALO product.
Pack Contents
The following is included: BUFFALO Dishwasher 2 x Washbaskets 1 x Cutlery Container Water Inlet Hose Water Drain Hose Instruction Manual
BUFFALO prides itself on quality and service, ensuring that at the time of packaging the contents are supplied fully functional and free of damage. Should you find any damage as a result of transit, please contact your BUFFALO dealer immediately
Installation
Levelling
Install the leveling feet, following the below instructions.

Chemical Feeder Tubes
Before placing the Dishwasher in its permanent position extend the chemicals feeder tubes making sure not to kink.
Chemical Feeder Tubes R: Rinse Aid ­ Blue Pipe D: Detergent ­ Clear Pipe Note - Do not add extensions to chemical feeder tubes Note - Chemical supply containers must be placed as close to the machine as possible and must NOT be elevated Note - Reposition the chemical tubing at the back of the machine, ensuring there are no kinks, before placing the machine in its permanent position

Plumbing Connection
Water Connection
Note - Plumbing connections must be made in such way that will allow the machine to be removed for service and cleaning. 1. Connect the hose supplied with the machine to the inlet at the rear of the machine and
the ¾" NPT fitting on the water supply line. 2. Check the water inlet pressure is between 2-4 bar (29-58 psi) (not static). If it is more a
PRV (pressure reducing valve) must be installed. If it is less a booster pump will be required
Drain Connection
1. Connect the drain hose supplied to the main drainage pipe work.

Chemical Feeders Priming
Your Buffalo Dishwasher has a detergent pump and a rinse-aid pump for use with containers of NON-FOAMING liquid detergent.
1. Insert the hoses of the pumps in the correct chemical container (clear tube for detergent, blue tube for rinse aid).
2. Ensure both of the hoses are at the bottom of the containers of the chemicals.
Note - The chemicals to be used should be suitable for Dishwashers. The detergent shall be the No Foam type, suitable for Dishwashing machines.
Note - We recommend that you use detergent and rinse aid from the same manufacturer. Jantex Dishwash detergent (GM981) & Jantex Dishwash rinse aid (CF977) are recommended.
Note - When the machine is installed from new or when the containers are allowed to run dry, the full priming takes place after 8-10 washing-rinsing cycles.

Detergent and Rinse Aid Pump Adjustment
1. Open the stainless steel front cover (remove 2x screws). 2. The pumps are ready for adjustment.
Detergent Pump Detergent amount required is dependent on soil and water hardness. Dosage can be regulated by a screw above and on the right of the glass cover. The regulation can be from 0 lt/hour to 3.0 lt/hour. Adjust the quantity by regulating the dosing. Turning the adjustment screw counterclockwise, the flow is reduced (-), turning it clockwise the flow is increased (+). The detergent pump is factory set at the maximum (3.0 lt/hr). Rinse Aid Pump Rinse Aid amount required is dependent on water hardness. Dosage can be regulated by a screw above and on the right of the glass cover. The regulation can be from 0 lt/hour to 0.7 lt/hour. The rinse aid pump suctions 0.7 ml per rotation of the rotary mechanism. Adjust the quantity by regulating the dosing. Turning the adjustment screw counterclockwise, the flow is reduced (-), turning it clockwise the flow is increased (+). The rinse-aid pump is factory set at the maximum (0.7 lt/hr).

Operation
Control Panel ­ DW319
Starting the Washing Procedure
1. Check that there are sufficient detergents in the chemical containers and that the drain and overflow pipe has been replaced in the correct position if it was removed for cleaning.
2. Close the door and turn on the Dishwasher by using the on/off button. 3. The Dishwasher will fill automatically and both the tank and booster will begin to heat.
The tank and boiler indicator lights will illuminate showing that the water is being heated.
Note - The full heating process is finished when warming light is off.
Loading the Basket
Load dishes into the basket ensuring all debris is removed.
Open the door and place basket in the machine. Note ­ Empty debris dishes into sink/receptacle. DO NOT EMPTY IN THE MACHINE.
Starting a Wash Cycle 1. Close the door. Ensure the door is closed properly. The Dishwasher will not start if the
door is not closed 2. Press the start button to initiate the washing cycle. The program light indicator will
illuminate while washing cycle is in progress 3. When the full washing cycle finishes, the program light indicator turns off and you can
remove the basket.
Note - Pay attention when removing the basket after the washing cycle as it may be hot! Note - Let the dishes dry out of the glasswasher

Shutting Down and Draining
1. Turn off the power switch (on/off button) 2. Remove the overflow pipe and let the machine drain
Cleaning the Filter
1. With the machine fully empty, rotate the suction-pump filter anti-clockwise to remove 2. Clean the filter under running water 3. Replace the filter and secure by rotating clockwise
Note - Allow to cool before removing filter Note - Do not run a washing program without filter securely in place
Cleaning the Wash Arm
1. Rotate the retaining nut anti-clockwise to release the wash arm 2. Clean with warm soapy water 3. Reposition the wash arm and tighten the nut clockwise

Troubleshooting

PROBLEM
The machine does not turn on

CAUSE Connection interruption
The moulded plug or the wires are damaged

SOLUTION
Check the connection and the safety fuse of the cabling
Disconnect the machine from the power supply and contact your authorized local dealer or the manufacturer. The machine must be repaired by qualified personnel

The machine's door is open

Close the door in order to activate the door switch

The machine is not filling with water

There is no water supply to the water input valve The filter of the water input valve is blocked The on/off switch doesn't function
The machine's door is open

Check the plumbing network of your facilities
Clean the valve's filter
Contact your authorized local dealer or the manufacturer Close the door in order to activate the door switch

The filter of the water input valve is blocked Problems with the plumbing

Clean the valve's filter
Contact your water provider or your plumber

The machine is not starting the washingrinsing cycle

The machine's door is open

Close the door in order to activate the door switch

The on/off switch has not been activated

Press the button of the on/off switch

The start switch was pressed momentarily

The water of the machine is not warming (the warming indicator is not going out and staying continuously on)

The thermofuse (boiler or tank) of the machine has broken the circuit of the heating

Press the button of the start switch continuously in order to start the washing-rinsing cycle
Press the button of the thermofuse (boiler or tank) in order to reset it

PROBLEM
The water of the machine is not warming (the warming indicator is not lighting up)

CAUSE
The machine has not stopped the filling of the water

SOLUTION
Wait for the filling of the water to stop. Check that the overflow pipe is at the correct position to avoid constant filling

The thermostats (boiler or tank) are set at a lower temperature than required

Increase the thermostat temperature

The washing pump is very noisy

The filter of the input of the pump is blocked
The washing arms or the sprayers are blocked
Something has interrupted the rotation of the cross or the arms

Unscrew the filter retaining nut-remove the filter and wash it with clean water. Carefully check for blockages caused by glass fragments
Unscrew the sprayers or remove the arms from the cross and wash them
Remove the basket and make sure that everything is at the proper position. Also check the arms or the cross if they are broken down

The rinsing is insufficient

The inlet pressure of the installation is under 1.5 bar
There is no water supply to the water input valve The rinsing sprayers are blocked
Something has interrupted the rotation of the cross or the arms

Check your water supplycheck your water pipe network. A booster pump may be fitted. Check the plumbing network of your facilities
Unscrew the sprayers or remove the arms from the cross and wash them
Remove the basket and make sure that everything is at the proper position. Also check the arms or the cross if they are broken down

PROBLEM
The finish washing result is inadequate

CAUSE

SOLUTION

The suction of the liquid detergentrinse aid doesn't take place according to the recommendation of the manufacturer
The hardness of the water is higher than 9 degree clark

Check both the peristaltic pumps and regulate them according the recommendation of the manufacturer of the machine and the manufacturer of the detergent-rinse aid Communicate with your water provider to learn about the hardness of the water of your area. A water softener may be fitted

There is too much foam

The machine isn't warming sufficiently
Foaming detergent been used

Check if the warming indication has gone out or
is still on
always use non-foaming detergent for ware washing machines

There is incorrect regulations to the peristaltic pumps

Regulate them according the recommendation of the manufacturer of the
machine and the manufacturer of the detergent-rinse aid

PROBLEM

CAUSE

SOLUTION

The dishwasher does not drain

The drain and overflow valve is still at the drain base

Remove the drain and overflow valve

Something has blocked the draining pipe

Check the draining pipe for folds or for blockages

The filter of the drain is blocked (for machines with draining pump)

Clean the drain's filter

The inlet of the drain is higher than the drain of the machine

Reposition the machine or install drain pump

The machine's washing- The drain and overflow valve is not Place the overflow valve at

rinsing cycle is

properly positioned or it is set

the right position

interrupted

upside down

There is high temperature inside the machine's tank and water has
evaporated
The tank has not been emptied from the previous day

Check the tank's temperature and regulate
the thermostats accordingly
Check carefully the tank at the end of the day

The machines door leaks

The washing or the rinsing sprayers are blocked

Clean the sprayers

There is too much foam in the tank

Check the detergent is non-foaming and that dosage is set correctly

Something has interrupted the rotation of the cross or the arms
The level of the tank's water is higher than the right one

Remove the basket and make sure that everything is at the proper position. Also check the arms or the
cross if they are broken down
Check the overflow drain pipe

Technical Specifications
Model Voltage Power
DW319 220-240V 6600W 50Hz

Pressure
2-4 Bar (29-58 psi)

Dimensions h x w x d mm 570 x 600 x 830

Weight 55Kgs

Electrical Wiring
Your Dishwasher must be installed by a qualified electrician
DW319 is supplied wired for installation to a single phase 230v 30A power supply.
DW319 can also be rewired by a qualified electrician to work on a single phase 230v 13A supply (Power reduced to 2600w) or three phase 400v 12.2A power supply.

Converting Single phase 30A to Single Phase 13A
1. REMOVE THE TWO RED CABLES FROM THE LEFT SIDE AND THE TWO WHITE CABLES FROM THE RIGHT SIDE OF THE HEATING ELEMENT OF THE BOILER.
2. REMOVE THE TWO RED CABLES FROM THE CONTACT 1L1 AND THE TWO WHITE CABLES FROM THE CONTACT 5L3 OF THE MAGNETIC CONTACTOR. CHANGE THE POSITION OF THE BLUE CABLE FROM THE CONTACT 13NO TO 5L3

3. REPLACE THE POWER SUPPLY CABLE FROM 3X10mm2 TO 3X1,5mm2

Power Supply Cable 3 x 10mm2

Power Supply Cable 3 x 1.5mm2

Converting Single phase 30A to Three Phase 12.2A
For this conversion you will need the 2 x Cable Bridge (Grey) and 1 x Power supply cable 5x2.5mm supplied.
1. REMOVE THE TWO WHITE CABLES FROM THE RIGHT SIDE OF THE HEATING ELEMENT OF THE BOILER AND PUT TWO 2,5mm2 CABLES TO BRIDGE THE RIGHT SIDE OF ELEMENT TO MAKE A STAR CONNECTION.
2. REMOVE THE TWO WHITE CABLES FROM THE CONTACT 5L3. SWITCH ONE OF THE TWO RED CABLES FROM THE CONTACT 1L1 TO 3L2. CHANGE THE POSITION OF THE GREY CABLE FROM THE CONTACT 3L2 TO 5L3. REMOVE THE TWO BLUE CABLES FROM THE CONTACT 6T3. SWITCH ONE OF THE TWO BROWN CABLES FROM THE CONTACT 2T1 TO 4T2. CHANGE THE POSITION OF THE GREY CABLE FROM THE CONTACT 4T2 TO 6T3.

3. REPLACE THE POWER SUPPLY CABLE FROM 3X10mm2 TO 5X2,5mm2
4. REMOVE ONE BLUE CABLE OF CONTACT 5 AND ONE BLUE CABLE FROM CONTACT 4. ATTENTION
THE BLUE CABLES THAT YOU MUST DISCONNECT ARE THESE THAT WERE REMOVED FROM THE MAGNETIC CONTACTOR (CONTACT 6T3).

Power Supply Cable 3 x 10mm2

Power Supply Cable 5 x 2.5mm2

Compliance
The WEEE logo on this product or its documentation indicates that the product must not be disposed of as household waste. To help prevent possible harm to human health and/or the environment, the product must be disposed of in an approved and environmentally safe recycling process. For further information on how to dispose of this product correctly, contact the product supplier, or the local authority responsible for waste disposal in your area.
All rights reserved. No part of these instructions may be produced or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior written permission of BUFFALO.
Every effort is made to ensure all details are correct at the time of going to press, however, BUFFALO reserve the right to change specifications without notice.

DW319_Manual Buffalo.v1


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