BUFFALO DW319 500mm Commercial Dishwasher with Drain Pump Instruction Manual

BUFFALO DW319 500mm Commercial Dishwasher with Drain Pump

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 Wash baskets
• 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.

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

and the safety fuse of the cabling
The molded plug or the wires are damaged| 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
There is no water supply to the water input valve| Check the plumbing network of your facilities
The filter of the water input valve is blocked| Clean the valve’s filter
The on/off switch doesn’t function| Contact your authorized local dealer or the manufacturer
The machine is not filling with water| The machine’s door is open| Close the door in order to activate the door switch
The filter of the water input valve is blocked| Clean the valve’s filter
Problems with the plumbing| Contact your water provider or your plumber
The machine is not starting the washing- rinsing 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| Press the button of
the start switch
continuously in order
to start the washing-rinsing cycle
The water of the machine is not warming (the warming indicator is not going out and staying continuously on)| The thermoses (boiler or tank) of the machine has broken the circuit of the heating| Press the button of the thermoses (boiler or tank) in order to reset it
The water of the machine is not warming (the warming indicator is not lighting up)| The machine has not stopped the filling of the water| 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| Unscrew the filter retaining nut-remove the filter and wash it with clean water. Carefully check for blockages caused by glass fragments
| The washing arms or the sprayers are blocked| Unscrew the sprayers or remove the arms from the cross and wash them
| Something has interrupted the rotation of the cross or the arms| 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| Check your water supply- check your water pipe network. A booster pump

may be fitted.

| There is no water supply to the water input valve| Check the plumbing network of your facilities
| The rinsing sprayers are blocked| Unscrew the sprayers or remove the arms from the cross and wash them
| Something has interrupted the rotation of the cross or the arms| 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 finish washing result is inadequate| |
| The suction of the liquid detergent- rinse aid doesn’t take place according to the recommendation of the manufacturer| 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

| The hardness of the water is higher than 9 degree Clark| 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| Check if the warming indication has gone out or is still on
| Foaming detergent been used| 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
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- rinsing cycle is interrupted| The drain and overflow valve is not properly positioned or it is set upside down| Place the overflow valve at the right position
| There is high temperature inside the machine’s tank and water has evaporated| Check the tank’s temperature and regulate the thermostats accordingly
| The tank has not been emptied from the previous day| 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| 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 level of the tank’s water is higher than the right one| Check the overflow drain pipe

Technical Specifications

Model| Voltage| Power| Pressure| Dimension
h x w x d m m| Weight
---|---|---|---|---|---
DW319| 220-240V
50Hz| 6600W| 2-4 Bar
(29-58 psi)| 570 x 600 x 830| 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
   

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 5×2.5mm 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

5. ATTENTION: THE BLUE CABLES THAT YOU MUST DISCONNECT ARE THESE THAT WERE REMOVED FROM THE MAGNETIC CONTACTOR (CONTACT 6T3).
   

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.

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