Omcan Food Machinery CD-GR-0500 Installation Manual

High Temp Dishwasher

Model CD-GR-0500

Instruction Manual

Revised - 10/8/2014

Toll Free: 1-800-465-0234

Fax: 905-607-0234

Email: sales@omcan.com

www.omcan.com

Table of Contents

Model CD-GR-0500

Section

General Information

Safety and Warranty

Technical Specications

Installation

Operation

Maintenance

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Page

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Troubleshooting

Parts Breakdowns

Electrical Schematics

Warranty Registration

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General Information

Omcan Manufacturing and Distributing Company Inc. and Food Machinery of America, Inc. dba Omcan are not responsible for any harm or injury caused due to any person’s improper or negligent use of this equipment. The product shall only be operated by someone over the age of 18, of sound mind, and

not under the inuence of any drugs or alcohol, who has been trained in the correct operation of this machine, and is wearing authorized, proper safety clothing. Any modication to the machine voids any warranty, and may cause harm to individuals using the machine or in the vicinity of the machine while

in operation.

CHECK PACKAGE UPON ARRIVAL

Upon receipt of an Omcan shipment please inspect for external damage. If no damage is evident on the external packaging, open carton to ensure all ordered items are within the box, and there is no concealed damage to the machine. If the package has suffered rough handling, bumps or damage (visible or concealed), please note it on the bill of lading before accepting the delivery and contact Omcan within 24 hours, so we may initiate a claim with the carrier. A detailed report on the extent of the damage caused to the machine must be

lled out within three days, from the delivery date shown in the shipping documents. Omcan has no recourse

for damaged products that were shipped collect or third party.

Safety and Warranty

If the door is opened in error, a door safety switch interrupts the appliance’s full operation. In case of overload or overheating, the pump motor winding has integrated thermal protection which interrupts power supply to the motor. The booster and wash tank are each equipped with a manually resetable thermal safety fuse which interrupts the power supply in case of overheating.

No technical modications are allowed in this appliance. The manufacturer is not responsible for any resulting damages due to modications or tampering. This also applies if the appliance is used for any

other purpose, except those indicated.

Dishwasher Water is not potable.

Use, maintenance, and repair of dishwasher should be performed only by competent and informed professionals familiar with this machine.

1 YEAR WARRANTY

WARNING:

The packaging components are classied as normal solid urban waste and can therefore be disposed of without difculty.

In any case, for suitable recycling, we suggest disposing of the products separately (differentiated waste) according to the current norms.

Safety and Warranty

DO NOT DISCARD ANY PACKAGING MATERIALS IN THE ENVIRONMENT!

Technical Specications

Power requirements: 208/230 volts, 60 cycles, 16 Amps. Water supply: 120°F / 50°C recommended, Can be used on almost any temperature water supply. Supply

pressure must be between 30 PSI (2 Bars) and 75 PSI (5 Bars).

Drain: should be vented type with connection not higher than outlet pipe of washing machine, or oor drain. Dimensions: 23”W x 24”D x 32”H (570mm W x 600mm D x 830mm H).

Installation

• Check the appliance for any damages during transportation.

• The unit should be installed by licensed and approved personnel according to all local codes.

• This dishwasher is delivered with water inlet and outlet hoses.

• Be sure all electrical supply specications correspond to information label on machine.

• After installation, the dishwasher should be cleaned thoroughly before putting into operation.

The manufacturer/ distributor is not responsible for any possible damages or risks due to improper connection of this appliance.

INSTALLATION SUGGESTIONS

• Place the dishwasher at the desired location.

• The appliance should tilted very slightly to the left and to the rear for best drainage results. Adjustable feet

are provided for this adjustment.

WATER SUPPLY CONNECTION

ATTENTION: Connection with the water supply should be made according to all applicable codes.

This dishwasher intended for use with a hot water supply but will also operate (at reduced hourly capacity) with a cold water supply.

Note to Plumbing Installer: If local codes require an external vacuum breaker, one must be locally supplied and installed in the supply line even though the unit has a built in vacuum breaker.

• The water supply hose/pipe should be ½” or ¾” and terminate in a ¾ NPT tting. (not garden hose tting).

• The water supply hose/pipe should be ushed before nal connection.

• Minimum ow pressure is 30 PSI (2 bars) and maximum is 75 PSI (5 bars).

Installation

• Connect hose supplied with machine to the inlet at the rear of the machine and the pipe tting on the water

supply line.

DRAINAGE CONNECTION

Outow is accomplished by a power drain pump in the E400DP. The outlet hose should be connected to an

open drain connection, to a vented drain pipe, or directed to a sink drain pipe (recommended height for best operation should not exceed 3 feet (1M) in height and 6 feet (2M) in distance).

ELECTRICAL CONNECTION

The dishwasher operates under specic voltage as noted on the attached Technical Specications label.

Note: A licensed electrician should be used for the connection according to local codes.

Unit will operate properly with either a 208 or 230 volt line, single phase 16 amps, 2 wire plus ground. No neutral (No 115 volt service) is required. Ground line must be connected at the junction block.

Open front panel below door by removing the two nuts holding the panel. Carefully open control box by removing the two Phillips (cross) screws.

Pull the grey plastic conduit frontwards about 1 foot, (30 cm).

Prepare the connecting cable suitable for 20 amps capacity by properly tting a ½” connector on the end of the

cable with about 30” (75 cm) of shielding removed.

It may be easier to make the connections by tilting the machine on to it’s left side, using the packing to prevent scratches.

Insert the exposed wire in the appropriate ½” hole in the back panel, place the connector mounting nut over the wire, and feed the wire through the grey plastic conduit leading to the inside of the control box. Mount the

connector tting properly.

Push the grey plastic conduit backward so that it rests against the connector, effectively covering the unshielded wire. Raise the machine back into its normal position.

Connect the wires to the appropriate terminal block connections. Please be sure all connections are tight.

Coil the extra wire neatly in the rear of the control box.

Close the control box, and remount front panel. Tighten exterior nuts gently only.

After installation, the dishwasher should be cleaned thoroughly before putting into operation.

Operation

INSTRUCTIONS FOR REGULAR OPERATION

The appliance is intended to clean dishes, cups, glasses, cutlery, etc. Be sure the items placed to be washed are suitable for dishwashing. Cutlery should be cleaned of heavy food residues, or soaked if not washed right after use. This machine is not intended for use with items which were used with acids, mineral oil, grease, gasoline or colors.

PREPARATION OF DISHES FOR WASHING.

For best results avoid allowing food residues to dry. Remove bulk food residues, olive pips, lemon peels, tooth picks, etc., before placing the dishes in the basket.

If washing is delayed we recommend that you soak dishes and/or glasses which have food residues.

FILLING OF BASKET

Place glasses and cups, with the opening facing down and not piled one on top of the other, in the appropriate baskets. Glasses should not touch each other (damage to glass or stains due to contact may occur).

Plates should be stacked vertically in appropriate baskets and not touching each other.

Place tableware in the supplied plastic basket, with handles downwards or placed freely in a level plastic basket.

In every case, avoid overloading the basket.

AUTOMATIC FILLING OF DETERGENT

This model has an automatic detergent pump for use with a container of non foaming liquid detergent. The detergent pump is a peristaltic regulated (looks exactly like the rinse-aid pump) and 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/hr.

MANUAL FILLING OF DETERGENT

Use only non-foaming detergent suitable for commercial dishwashers. In the event of non use or malfunction of the automatic detergent injection system, put the detergent suppliers recommended amount directly into the wash compartment tank after the machine has reached its operating temperature.

The correct dosage depends on the water hardness and the amount of residue on the dishes. Follow the detergent manufacturer’s recommendations. Less detergent deters good washing results and more detergent usually does not provide better results, but rather more unnecessary consumption and environment pollution.

Do not use granular detergent. Poor results usually occur.

Operation

Do not use caustic products. This will void the guarantee.

RINSE-AID “DOZER”

This model has an automatic rinse-aid pump for use with a container of liquid rinse-aid. The rinse-aid pump is a peristaltic regulated (looks exactly like the detergent pump) and 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/hr.

Both pumps are mounting vertically on an inox bracket on the left of the booster and are marked with two yellow stickers.

Before you perform these adjustments, turn off the power supply.

The dozer is adjusted from the manufacturer’s premises at its maximum value for easy initial priming and must be adjusted accordingly (depending on water hardness, how dirty the dishes are, and the detergent used).

To reduce (-) the amount of rinse aid, turn the center screw clockwise. To increase (+), turn counterclockwise.

Note: this is a 15 revolution adjusting screw to provide ne adjustments as required.

Suggestion for initializing personnel: After priming system by operating machine through several cycles,

rotate adjusting screw gently to full closed position (clockwise) and adjust (counter-clockwise) about 7

full revolutions. Empty wash tank and rell with fresh water. Operate for two or three cycles and verify concentration level. Adjust dozer again if required to achieve nal desired results.

OPERATION

• Check that the pump inlet lter has been placed in the correct position if it was removed for cleaning.

• Check that the overow stand pipe is inserted correctly in its outlet.

• Close door.

• Turn power switch to “PROGRAM” (switches should now illuminate).

• The dishwasher will ll automatically.

• The booster indicator should come on to indicate that the inlet water to the rinse and ll system is being

heated to the required rinse temperature (usually 185°F/ 84°C).

• When the booster water has reached the correct temperature, the corresponding light switches off and the wash tank light comes on if the wash water temperature is not sufciently hot (usually 140°F/60°C).

• At initial daily start, allow about 10 to 20 minutes for machine to stabilize water temperatures to their proper

temperatures.

Note: After warm-up, one initial wash cycle should be performed to thoroughly mix soap and water and be sure unit is fully warmed up and ready to wash properly.

• After initial warm-up, when all heater lights are off, the dishwasher is ready to wash.

Note: If door is opened during heating, or operation, the safety control will turn off the timer and heater controls. Washing or rinsing will restart from beginning of wash cycle.

• Open the door, insert the basket with the items (dishes, glasses, etc.) noting that heavy food residue has been removed. (If the automatic soap injection system is not used, pour the proper amount of liquid

Operation

detergent manually into the wash tank). Close the door.

• To start the washing program, select the program desired and press the START button. The automatic program commences, with the green program indicator light in the program selector switch changing from ashing to steady.

Note: This unit is equipped with a “positive rinse temperature control and will not advance from wash to rinse unless the rinse water is at the preset temperature (usually about 185°F / 85°C).

• When the program is nished, the green program light returns to ashing.

• Promptly open the door and remove the basket with the clean items. Use caution with hot items.

• Allow to dry.

If, after washing, there are stains from dirt or water spots, the cause may be one of the following:

• Wrong ratio of detergent to water.

• Rinsing water with very high mineral content.

• Improper quantity of rinse-aid.

• Wrong arrangement of items in the basket.

• Low water pressure during rinsing.

• Low water temperature during washing.

• Clogged or miss-positioned lters.

• Clogged jets.

Maintenance

DAILY MAINTENANCE OPERATION.

• Turn the power switch off.

• Empty the wash tank by removing the overow standpipe.

• Rinse the washing compartment to remove any dirt residues.

• Remove and clean the large pump lter.

• Reassemble the parts in reverse order.

Never operate the dishwasher without the wash pump lter properly in place.

MAINTENANCE / CARE / REPAIR

Proper operation and safe use may be ensured only through the correct use of the appliance, as well as

the compliance with the operation instructions, the corresponding specications and the care and cleaning

indications.

Notice: Before maintenance, other than daily interior cleaning, power and water supply to the machine must be turned off. The appliance should never be sprayed with water or high pressure cleaning solution, because any water or solution in the electrical elements will affect operation of the appliance as well as provide a potential for serious electrical shock.

No safety systems should be disabled.

Maintenance

REGULAR MAINTENANCE AND CLEANING.

Depending on local water hardness, the nozzles on the upper wash piping and rinse arms should be cleaned. Caution must be exercised to not damage the nozzles. If rinse nozzles are removed, they must be replaced with the slot in line with the rinse arm. ATTENTION MUST BE GIVEN TO THE CORRECT INSTALLATION OF FILTERS, WASH ARMS, AND TEFLON BUSHINGS! REPLACE BUSHINGS IF WORN. Clean the appliance with warm water and conventional cleaning aids. Stainless steel parts should never be cleaned them with “steel wool” wire brush, etc, since even the lightest contacts on the surfaces with steel may contaminate the stainless steel and cause rust formation. Use brushes made of polymer plastic or natural bristles or thin brass wire. Always keep brush movements in line with grain in the Stainless Steel so that you will not affect the appearance. Finally, rinse with clean water and dry thoroughly.

We remind you that corrosion (rust formation) on stainless steel surfaces is not created by itself, but rather due to the use of improper cleaning products (e.g. whitening or particularly caustic cleaning products based on chlorine). Occasionally calcium sediments form on the internal walls of the wash compartment, tubing, and booster chamber (due to mineral particles in the water), which may affect the correct operation of the appliance and which requires removal.

SPARE PARTS, ACCESSORIES AND COMPONENTS

Spare parts and components are usually available at the authorized local service agency, or directly from Omcan, In case of warranty claims or complaints, you must supply the model and serial number of the

appliance found on the specication label of the appliance.

Troubleshooting

PROBLEM CAUSE SOLUTION

The dishwasher does not operate. No power to the machine. Check the connection.

Breaker or fuse has not been

activated or is faulty. Control switch S1 not activated. Turn switch S1 on. Switch S1 is faulty. Refer to the authorized service

agency, local dealer, or Omcan. Water supply not turned on. Turn the supply on. Door is not closed. Close the door. Water inlet valve is faulty. Refer to the authorized service

agency, local dealer, or Omcan.

Troubleshooting

Fill water runs continuously. Overow drain stand pipe not

installed properly.

The appliance operates, but the green operating pilot light does not illuminate.

Booster not heating. Switch S1 or main switch or fuse

Booster heating operates, but pilot light does not turn on.

Wash tank heating does not operate.

Pump motor does not operate. Main switch or fuse is not

Motor operates, but pump does not rotate.

The pilot light is faulty. Change the pilot light. Wire lead to lamp disconnected. Reconnect power lead. Lamp is out of it’s socket. Insert lamp.

has not been activated.

The booster thermostat is faulty. Refer to the authorized service

The booster 105°C thermal fuse is faulty.

Pressure switch is faulty. Refer to the authorized service

Booster heating contactor is faulty. Refer to the authorized service

The pilot light is faulty. Change the pilot light. Wire lead to lamp disconnected. Reconnect power lead. Lamp is out of it’s socket. Reconnect power lead. The wash tank thermostat is faulty. Refer to the authorized service

The 90°C thermal fuse is burned or defective.

activated. The door is not closed. Close the door. Main relay is faulty. Refer to the authorized service

Pump motor is faulty. Refer to the authorized service

Program timer is faulty. Refer to the authorized service

An object has jammed the pump impeller.

Hard water deposits or detergent

have been petried following non

operation of the appliance.

Install overow drain stand pipe.

Verify that overow drain stand

pipe is installed properly with

overow slots upwards.

Check the switch S1 of the

appliance and the main switch or

fuse.

agency, local dealer, or Omcan.

Refer to the authorized service

agency, local dealer, or Omcan.

Refer to the authorized service

agency, local dealer, or Omcan.

Activate main switch or fuse.

agency, local dealer, or Omcan.

Refer to the authorized service

agency, local dealer, or Omcan.

Loosen deposits by rotating screw

on rear side of pump motor.

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