Omcan CD-GR-0500 User manual

Revised - 04/20/2018
Toll Free: 1-800-465-0234
Fax: [phone]
Email: [email protected]
www.omcan.com
High Temp Dishwasher
Model CD-GR-0500
Item 45219
Instruction Manual

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Table of Contents
Section
General Information
Technical Specications
Safety and Warranty
Installation
Operation
Maintenance
Troubleshooting
Parts Breakdown
Electrical Schematics
Warranty Registration
Model CD-GR-0500

3
General Information
Omcan Manufacturing and Distributing Company Inc., Food Machinery of America, Inc. dba Omcan
and Omcan Inc. 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.
Before operating any equipment, always read and familiarize yourself with all operation and safety
instructions.
Omcan would like to thank you for purchasing this machine. It’s of the utmost importance to save
these instructions for future reference. Also save the original box and packaging for shipping the
equipment if servicing or returning of the machine is required.
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Omcan Fabrication et distribution Companie Limité et Food Machinery d’Amerique, dba Omcan et
Omcan Inc. ne sont pas responsables de tout dommage ou blessure causé du fait que toute personne
ait utilisé cet équipement de façon irrégulière. Le produit ne doit être exploité que par quelqu’un de
plus de 18 ans, saine d’esprit, et pas sous l’inuence d’une drogue ou d’acohol, qui a été formé pour
utiliser cette machine correctement, et est vêtu de vêtements de sécurité approprié. Toute modication
de la machine annule toute garantie, et peut causer un préjudice à des personnes utilisant la machine
ou des personnes à proximité de la machine pendant son fonctionnement.
VÉRIFIEZ LE COLIS DÈS RÉCEPTION
Dès réception d’une expédition d’Omcan veuillez inspecter pour dommages externes. Si aucun dommage
n’est visible sur l’emballage externe, ouvrez le carton an de s’assurer que tous les éléments commandés
sont dans la boîte, et il n’y a aucun dommage dissimulé à la machine. Si le colis n’a subi aucune mauvaises
manipulations, de bosses ou de dommages (visible ou cachée), notez-le sur le bond de livraison avant
d’accepter la livraison et contactez Omcan dans les 24 heures qui suivent, pour que nous puissions engager
une réclamation auprès du transporteur. Un rapport détaillé sur l’étendue des dommages causés à la machine
doit être rempli dans un délai de trois jours, à compter de la date de livraison indiquée dans les documents
d’expédition. Omcan n’a aucun droit de recours pour les produits endommagés qui ont été expédiées ou cueilli
par un tiers transporteur.

4
General Information
Avant d’utiliser n’importe quel équipement, toujours lire et vous familiariser avec toutes les opérations
et les consignes de sécurité.
Omcan voudrais vous remercier d’avoir choisi cette machine. Il est primordial de conserver ces
instructions pour une référence ultérieure. Également conservez la boîte originale et l’emballage pour
l’expédition de l’équipement si l’entretien ou le retour de la machine est nécessaire.
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Omcan Empresa De Fabricacion Y Distribucion Inc. Y Maquinaria De Alimentos De America, Inc. dba
Omcan y Omcan Inc. no son responsables de ningun daño o perjuicío causado por cualquier persona
inadecuada o el uso descuidado de este equipo. El producto solo podra ser operado por una persona
mayor de 18 años, en su sano juicio y no bajo alguna inuencia de droga o alcohol, y que este ha sido
entrenado en el correcto funcionamiento de esta máquina, y ésta usando ropa apropiada y autorizada.
Cualquier modicación a la máquina anúla la garantía y puede causar daños a las personas usando la
máquina mientras esta en el funcionamiento.
REVISE EL PAQUETE A SU LLEGADA
Tras la recepcion de un envio Omcan favor inspeccionar daños externos. Si no hay daños evidentes en el
empaque exterior, Habra el carton para asegurararse que todos los articulos solicitados ésten dentro de la
caja y no encuentre daños ocultos en la máquina. Si el paquete ha sufrido un manejo de poco cuidado, golpes
o daños (visible o oculto) por favor anote en la factura antes de aceptar la entrega y contacte Omcan dentro
de las 24 horas, de modo que podamos iniciar una reclamación con la compañia. Un informe detallado sobre
los daños causados a la máquina debe ser llenado en el plazo de tres días, desde la fecha de entrega que se
muestra en los documentos de envío. Omcan no tiene ningun recurso por productos dañados que se enviaron
a recoger por terceros.
Antes de utilizar cualquier equipo, siempre lea y familiarizarse con todas las instrucciones de
funcionamiento y seguridad.
Omcan le gustaría darle las gracias por la compra de esta máquina. Es de la mayor importancia para
salvar estas instrucciones para futuras consultas. Además, guarda la caja original y el embalaje para el
envío del equipo si servicio técnico o devolución de la máquina que se requiere.

5
Technical Specications
Model CD-GR-0500
Voltage 220-240V 60Hz
Max Power 3.8 Kw
Max Amperes 16 A
Minimum Income Water Temperature 40°C / 104°F
Rinse Flow Pressure 20 psi ± 5
Boiler Heating Element 3.1 kW
Tank Heating Element 2.9 kW
Boiler Capacity 6 L
Tank Capacity 35 L
Washing Pump Power 0.75 HP
Overall Dimensions 22.4” x 23.6” x 32.7” / 570 x 600 x 830mm
Basket Dimensions 19.7” x 19.7” / 500 x 500mm
Washing Cycles 104 / 163 / 223 sec.
Rinse Cycle 16 sec.
Peristaltic Detergent Pump Standard
Peristaltic Rinse Aid Pump Standard
Boiler Thermofuse 105°C / 221°F
Tank Thermofuse 99°C / 210.2°F
Boiler Thermometer Standard
Tank Thermometer Standard
Pressure Gauge Standard
Door Clearance 14.2” / 360mm
Max Glass 12.8” / 325mm
Max Dish 13.2” / 335mm
Net Weight 121.25 lbs. / 55 kgs.
Gross Weight 132.3 lbs. / 60 kgs.
Item Number 45219

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Technical Specications

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Technical Specications
PRODUCT SERIAL NUMBER

8
Safety and Warranty
THE FOLLOWING SYMBOLS INDICATE IMPORTANT INFORMATION THROUGHOUT THIS MANUAL.
Caution symbols indicate action or condition that can result in damage to the machine.
Not approved symbols indicate action or condition that will diminish the optimum operation of the
machine.
Approved symbols indicate action or condition that is safe and correct and should be followed.
Warning symbols indicate action or condition that can be hazardous.
Note symbols indicate important information that should be followed for installing or operating the
machine.
INDICATIONAL WARNINGS - CAUTIONS - NOTES
Machine installation must comply with all local Health, Plumbing, Electrical and Safety codes.
All Plumbing connections ARE PRIOR to the electrical installations and must be performed be qualied
service personnel otherwise there is risk of damages to heating elements.
Problems or Damages caused due to improper installation are not covered by the Limited Warranty.
All debris from the water supply line must be flushed before connecting it to the machine. Debris can
damage the machine supply valves.
Handle with care when lifting or moving to avoid damage or leakings.
Plumbing and Electrical connections must allow the machine to move for service or cleaning.
Before any electrical or service operation disconnect the main electrical supply and lock it out in order
to clearly indicate that there is work in progress.

9
Safety and Warranty
1. All pumping connections must be made prior to the electrical connection as otherwise there is high
risk of damages to heating elements.
Damages due to negligence installation are not covered by the warranty.
2. Be careful when lifting or moving the dishwasher to avoid leaks or damages.
Do not use granular detergent. Poor results usually occur.
Do not use caustic products. This will void the guarantee.
Be sure all electrical supply specications correspond to information label on machine.
The manufacturer/ distributor is not responsible for any possible damages or risks due to improper connection
of this appliance.
I. Inspect the packaging for external damages.
II. Check that all the following accessories are inside the machine.
• 1 Glass basket.
• 1 Dish basket.
• 1 Cutlery basket.
• 1 Water inlet hose.
• 1 Pressure reducer valve (PRV).
• 4 leveling feet.
• 4 thread covers for leveling feet.
• 1 User manual.
• 1 Extended warranty brochure.
1 YEAR PARTS AND LABOUR WARRANTY
Within the warranty period, contact Omcan Inc. at 1-800-465-0234 to schedule an Omcan authorized
service technician to repair the equipment locally.
Unauthorized maintenance will void the warranty. Warranty covers electrical and part failures, not
improper use.
Please see www.omcan.com/warranty.html for complete info.
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.
DO NOT DISCARD ANY PACKAGING MATERIALS IN THE ENVIRONMENT!

10
Installation
PLACEMENT
LEVEL THE MACHINE
INSTALLATION SUGGESTIONS
• Place the dishwasher in the desired location.
• The appliance should leveled. Adjustable feet are provided for this adjustment.

11
Installation
Note
The leveling feet should not have any exposed threads. Please use the provided bushes in order to cover the
exposed threads.
PLACEMENT - CHEMICAL CONTAINERS
Chemical supply containers must be placed as close as possible to the machine and must not be
elevated.
Reposition the chemical tubing at the back of the machine before placing the machine to its permanent
position.
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.
WATER SUPPLY CONNECTION

12
Installation
ATTENTION: Connection with the water supply should be made according to all applicable codes.
Machine must be connected to hot water source. Minimum income water temperature should be 40º.
A Pressure Regulator Valve must be inserted between the machine water inlet and the water source.
Water pressure during flow (not static), must be regulated to 20 PSI. During pressure regulation please
check the pressure gauge at the front of the machine.
This dishwasher intended for use with a hot water supply but will also operate (at slightly reduced hourly
capacity) with a cold water supply.
• The water supply hose/pipe should be OD 14mm x ID 10mm and terminate in a ¾” NPT tting (not garden
hose).
• The water supply hose/pipe should be flushed before nal connection.
• Minimum ow pressure is 15 PSI and maximum is 25 PSI.
• Connect hose supplied with machine to the inlet at the rear of the machine and the ¾” NPT tting on the
water supply line.
PRESSURE REGULATOR VALVE ADJUSTMENT

13
Installation
DRAINAGE CONNECTION
Do not add extension to the drain hose otherwise warranty is void.
Outflow is accomplished by the use of a drain pump in the CD-GR-0500. The outlet hose should be connected
either directly to a floor drain or drain which must not be higher than the level of the outlet at the rear of the
machine. An open drain connection or one to a vented drain pipe is recommended.
I. Connect the drain hose to the main draining.
II. Connection must be made if the same flow with the draining pipe.
ATTENTION:
• Drain connection to a venting dedicated drain pipe is suggested.
• It is strongly advised NOT to connect the drain hose into the sink’s draining.
• If an extension is added to the drain hose the warranty is voided.
ATTENTION:
• Make sure that no residuals remain to the water supply line before connecting it to the machine.
• Plumbing connections must be made in such way that will allow the machine to be moved for service and
cleaning.
• PRV MUST be installed and adjust at 20 PSI otherwise the warranty is voided.
Min water inlet temp. Operating flow pressure. Min wash temperature. Min rinse temperature.
40°C 20 ±5 PSI 165°F / 74°C 165°F / 74°C
• Connect the PRV valve in the water supply shut off valve.
• Connect the water supply hose to the PRV in one side and in the machine on the other side.
Attention: source water hardness must not intervene 10°F / 6 Gd.

14
Installation
ELECTRICAL CONNECTION
Attention: Before make any electrical connection or service, disconnect the main electrical supply and
lock it out in order to clearly indicate that there is work in progress.
I. Open the lower front cover (2 bolts).
II. Open the top cover of electrical circuit.
III. Connect the cable to the terminal block (Attention: strain relief knockout must be placed by the
installer).
Caution: 15 cm loop of wire must be left inside the machine in order to allow servicing.
IV. Replace the top cover.
V. Replace and secure the lower front cover.

15
Installation
DETERGENT AND RINSE AID REGULATION.
I. Open the lower front cover (2 bolts).
II. Take out the feeders.
III. Adjust the quantity by regulating the dosing (xxxxxx ml / rotation).
IV. Replace the feeders.
V. Make sure that the chemical feeders’ hoses are not out of the right position.
VI. Replace the front lower cover.
RINSE-AID PUMP
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.
ADJUSTMENT OF PERISTALTIC PUMPS
PUMP REGULATION
DETERGENT RINSE
2.6ml/rotation 1.2ml/rotation

16
Installation
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.
SCREENERS (SURFACE FILTERS) - OVERFLOW PIPE - SUCTION FILTER - DRAIN
FILTER
To remove the surface lters rst align the rinse and washing arms with the middle lter support and then
lift.
Do not remove the surface screeners and internal lters if the tank is not empty

17
Installation
Operation
DAILY OPERATION
1. Check the chemical containers to be sufcient full.
2. Replace the overflow pipe and the surface screeners into correct position.
3. Turn on the dishwasher by putting the switch No 1 into on position.
4. Wait 20 minutes in order both the tank and booster to be fully heated.
Attention: the full heating process is nished when both warming lights are off.

18
Operation
5. Load the basket in a proper way and place it in the machine.
Attention: All the residuals on the dishes and glasses must be removed.
6. Select the preferable washing cycle time by the selector switch No 2.
Program Wash time Rinse time
Short 103 sec. 16 sec.
Standard 163 sec. 16 sec.
Long 223 sec. 16 sec.
7. Close the door and press the start button to initiate the washing cycle.
8. When the cycle time selector switch - No 2 starts flashing the program has nished and you can remove
the basket.
Attention:
• The washing cycle time may be extended until the nal rinse temperature reach 165°F / 74°C.
• Let the dishes and glasses to dry out of the dishwasher.
• Pay attention on removing the basket after the washing cycle as it may be HOT.
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, look to
the side of the baskets to see the recommended loading capacity.
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.

19
Operation
• Check that the pump inlet lter has been placed in the correct position if it was removed for cleaning.
• Check that the overflow 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 165°F/ 74°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 165°F / 74°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
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
flashing 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 195°F / 91°C).
• When the program is nished, the green program light returns to flashing.
• 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.
Note
• The wash temperature must be within ≥ 74°C & ≤ 84°C and the rinse temperature must be within ≥ 74°C &
≤ 91°C.
• Please check during the operation that the rinse water pressure is within its limits (20 ± 5 psi).

20
Maintenance
SHUTTING DOWN AND DRAINING
1. Turn the power switch into draining position.
2. Remove the overflow pipe.
Attention: Do not remove the surface screeners and internal lters if the tank is not empty.
3. Press the start button to start a draining cycle.
If a second draining is needed start a new cycle by pressing the start button.
4. Remove the surface lters and clean them under running water.
Attention: DO NOT use any metal sponge to scratch the lters or the dishwasher surface.
5. Remove the suction lter and the draining lter and clean them under running water.
6. Put the power switch no1 into off position.
7. Replace the lters and overflow pipe
DAILY MAINTENANCE OPERATION.
• Turn the power switch off.
• Empty the wash tank by removing the overflow 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.