Service Manual
Commercial Q-ing Oven
MCMOC24 |
P2004822M & P2004825M |
MCMOC24T |
P2004823M & P2004826M |
May 2019 |
16400037 |
©ACP,Inc. |
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TABLE OF CONTENTS |
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IMPORTANT INFORMATION .................................................................................................... |
1 |
IMPORTANT SAFETY INFORMATION .................................................................................. |
2-5 |
Oven Specifications .............................................................................................................. |
6 |
Oven Construction ........................................................................................................... |
7-11 |
Oven Performance Test................................................................................................................... |
12 |
Component Test Procedures.......................................................................................... |
13-16 |
Troubleshooting Chart.................................................................................................... |
17-18 |
Wiring Diagram ................................................................................................................... |
19 |
Schematic Diagram............................................................................................................. |
20 |
Appendix A |
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Quick Start Reference Guide ............................................................................................. |
A-1 |
- ii -
Important Information
Important Notices for Servicers and Consumers
ACP will not be responsible for personal injury or property damage from improper service procedures. Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service. Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing instruments and the appropriate service information. IT IS THE TECHNICIANS RESPONSIBLITY TO REVIEW ALL
APPROPRIATE SERVICE INFORMATION BEFORE BEGINNING REPAIRS.
!
electrical shock.
To locate an authorized servicer please contact:
ComServ Support Center
Web Site |
Telephone Number |
WWW.ACPSOLUTIONS.COM ....................... |
1-866-811-8559 or 319-368-8195 |
E-Mail: commercialservice@acpsolutions.com |
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Recognize Safety Symbols, Words, and Labels |
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DANGER— Immediate hazards which WILL result in severe persona linjury or death.
!
WARNING— Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION— Hazards or unsafe practices which COULD result in personal injury, product or property damage.
1
Important Safety Information
!WARNING
Read the following information to avoid possible exposure to microwave radiation:
The basic design of the Microwave Oven makes it an inherently safe device to both use and service. However, there are some precautions which should be followed when servicing the microwave to maintain this safety. These are as follows:
1.Always operate the unit from an adequately grounded outlet. Do not operate on a two-wire extension cord.
2.Beforeservicingtheunit(if unitisoperable)perform the microwave leakage test.
3.Theovenshouldneverbeoperatedif thedoordoes not fit properly against the seal, the hinges or hinge bearings are damaged or broken; the choke is damaged, (pieces missing, etc.); or any other visible damage can be noted. Check the choke area to ensure that this area is clean and free of all foreign matter.
4.If the oven operates with the door open and produces microwave energy, take the following steps:
A.Tell the user not to operate the oven.
B.Contact ACP ComServ immediately.
5.Alwayshavetheovendisconnectedwhentheouter case is removed except when making the "live" tests called for in the Service Manual. Do not reach into the equipment area while the unit is energized. Make all connections for the test and check them for tightness before plugging the cord into theoutlet.
6.Always ground the capacitors on the magnetron filter box with an insulated-handle screwdriver before working in the high voltage area of the equipment compartment. Some types of failures will leave a charge in these capacitors and the discharge could cause a reflex action which could make you injure yourself.
7.Always remember that in the area of the transformer there is HIGH VOLTAGE. When the unit is operating keep this area clear and free of anything which could possibly cause an arc or ground, etc.
8.Do not for any reason defeat the interlock switches there is not valid reason for this action at any time; nor will it be condoned by ACP.
9.IMPORTANT: Before returning a unit to a customer, be sure to check for proper switch interlock action.
10.The Microwave Oven should never be operated with any components removed and/or
bypassed or when any of the safety interlocks are found to be defective, or when any of the seal surfaces aredefective, missing,ordamaged.
11.All microwave ovens meet all requirements
of the radiation control for Health and SafetyAct of 1968. Due to measurement uncertainties, the maximum leakage for the field will be 4mw/cm2.
12.To ensure that the unit does not emit excessive microwave leakage and to meet the Department of Health and Human Services guidelines, check theovenformicrowaveleakageusingamicrowave oven leakage meter that complies with US Government CDRH / FDA / DHHS requirements and or any other local government requirements.
The maximum leakage level allowed by ACP is 4mw/cm 2.
13.If servicer encounters an emission reading over 4mw/cm2, the servicer is to cease repair and contact the ACP ComServ Department immediately for further direction. ACP
will contact the proper Government Agencyupon verification of the test results.
2
IMPORTANT SAFETY INSTRUCTIONS
Recognize this symbol as a SAFETY message
!WARNING
When using electrical equipment, basic safety precautions should be followed to reduce the risk of burns, electrical shock, fire, or injury to persons including the following.
1.READ all instructions before using equipment.
2.READ AND FOLLOW the specific
“PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE
ENERGY” on this page.
3.This equipment MUST BE GROUNDED. Connect only to properly GROUNDED outlet. See “ GROUNDING / EARTHING INSTRUCTIONS” on page 5.
4.Install or locate this equipment ONLY in accordance with the installation instructions in this manual.
5.Some products such as whole eggs and sealed containers—for example, closed glass jars—are able to explode and SHOULD NOT be HEATED in this oven.
6.Use this equipment ONLY for its intended use as described in this manual. Do not use corrosive chemicals or vapors in this equipment. This type of oven is specifically designed to heat, cook,
or dry food. It is not designed for industrial or laboratory use.
7.As with any equipment, CLOSE SUPERVISION is necessary when used by CHILDREN.
8.See door cleaning instructions on page A-4 of this owners manual.
9.DO NOT heat baby bottles in oven.
10.Baby food jars shall be open when heated and contents stirred or shaken before consumption, in order to avoid burns.
11 DO NOT operate this equipment if it has a damaged cord or plug, if it is not working properly, or if it has been damaged or dropped.
12.This equipment, including power cord, must be serviced ONLY by qualified service personnel. Special tools are required to service equipment. Contact nearest authorized service facility for examination, repair, or adjustment.
13.DO NOT cover or block louvers or other openings on equipment.
14.DO NOT store this equipment outdoors. DO NOT use this product near water – for example, near a kitchen sink, in a wet basement, a swimming pool, or a similar location.
15.DO NOT immerse cord or plug in water.
16.Keep cord AWAY from HEATED surfaces.
17.DO NOT let cord hang over edge of table or counter.
18.For commercial use only.
PRECAUTIONS TO AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
A.DO NOT attempt to operate this oven with the door open since open door operation can result in harmful exposure to microwave energy. It is important not to defeat or tamper with the safety interlocks.
B.DO NOT place any object between the oven front face and the door too allow soil or cleaner residue to accumulate on sealing surfaces.
C.DO NOT operate the oven if it is damaged. It is particularly important that the oven door close properly and that there is no damage to the:
1.door (bent)
2.hinges and latches (broken or loosened)
3.door seals and sealing surfaces.
D.The oven should not be adjusted or repaired by anyone except properly qualified service personnel.
SAVE THESE INSTRUCTIONS
3
IMPORTANT SAFETY INSTRUCTIONS
WARNING
To avoid risk of fire in the oven cavity:
a.DO NOT overcook food. Carefully attend oven when paper, plastic, or other combustible materials are placed inside the oven to facilitate cooking.
b.Remove wire twist-ties from paper or plastic bags before placing bag in oven.
c.If materials inside the oven ignite, keep oven door CLOSED, turn oven off and disconnect the power cord, or shut off power at the fuse or circuit breaker panel.
d.DO NOT use the cavity for storage. DO NOT leave paper products, cooking utensils, or food in the cavity when not in use.
WARNING
Liquids such as water, coffee, or tea are able to be overheated beyond the boiling point without
appearing to be boiling due to surface tension of the liquid. Visible bubbling or boiling when the container is removed from the microwave oven is not always present. THIS COULD RESULT IN VERY HOT LIQUIDS SUDDENLY BOILING OVER WHEN A SPOON OR OTHER UTENSIL IS INSERTED INTO THE LIQUID. To reduce the risk of injury to persons:
i)Do not overheat the liquid.
ii)Stir the liquid both before and halfway through heating it.
iii)Do not use straight-sided containers with narrow necks.
iv)After heating, allow the container to stand in the microwave oven for a short time before removing the container.
v)Use extreme care when inserting a spoon or other utensil into the container.
! CAUTION
To avoid personal injury or property damage, observe the following:
1.Do not deep fat fry in oven. Fat could overheat and be hazardous to handle.
2.Do not cook or reheat eggs in shell or with an unbroken yolk using microwave energy. Pressure may build up and erupt. Pierce yolk with fork or knife before cooking.
3.Pierce skin of potatoes, tomatoes, and similar foods before cooking with microwave energy. When skin is pierced, steam escapes evenly.
4.Do not operate equipment without load or food in oven cavity.
5.Microwave popcorn should not be popped in oven.
6.Do not use regular cooking thermometers in oven. Most cooking thermometers contain mercury and may cause an electrical arc, malfunction, or damage to oven.
7.Do not use metal utensils in oven.
8.Do not use aluminum foil in oven
9.Never use paper, plastic, or other combustible materials that are not intended for cooking.
10.When cooking with paper, plastic, or other combustible materials, follow manufacturer’s recommendations on product use.
11.Do not use paper towels which contain nylon or other synthetic fibers. Heated synthetics could melt and cause paper to ignite.
12.Do not heat sealed containers or plastic bags in oven. Food or liquid could expand quickly and cause container or bag to break. Pierce or open container or bag before heating.
13.To avoid pacemaker malfunction, consult physician or pacemaker manufacturer about effects of microwave energy on pacemaker.
14.An authorized servicer MUST inspect equipment annually. Record all inspections and repairs for future use.
SAVE THESE INSTRUCTIONS
4
Important Safety Information
Grounding Instructions
•Donotoperateorallowoventobeoperatedwith door open.
•Makethefollowingsafetychecksonallovenstobe servicedbeforeactivating themagnetronorother microwave source, and make repairs as necessary:
•Interlock operation
•Proper door closing
•Seal and sealing surfaces (arcing, wear, and other damage)
•Damage toorlooseningofhingesandlatches
•Evidence of dropping or abuse
•Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, waveguide or transmission line, and cavity for proper alignment, integrity, and connections.
•Any failed or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired,replacedoradjustedbyprocedures described in this manual before oven is released to the consumer.
•Check microwave leakage to verify compliance with the federal performance standard should be performed on each oven prior to release to the consumer.
5
This equipment MUST be grounded. Inthe eventofan electricalshortcircuit,groundingreducestheriskof electric shock by providing an escape wire for the electriccurrent.Thisovenisequippedwithacord having agroundingwire with agroundingplug.Theplug must be plugged into an outlet that is properly installed and grounded.
Consultaqualifiedelectricianorservicerifgrounding instructionsarenotcompletelyunderstood,orifdoubt existsastowhethertheequipmentisproperly grounded.
Do not use an extension cord. If the product power cord is too short, have a qualified electrician install an appropriate receptacle. This oven should be plugged into a separate50or60hertzcircuitwith theelectricalratingas shownintheappropriatedrawing.Modelsoperatewitha
208 or 230supplyvoltage.Whenanovenison a circuitwithotherequipment,anincreaseincooking timesmayberequiredandfusescanbeblown.
SPECIFICATIONS
Model |
MCMOC24* |
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Configuration |
Countertop or shelf |
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Control System |
Touch, angled for easy viewing |
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Programmable Control Pads |
10 |
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Total Programmable Settings |
100 |
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Max. Cooking Time |
10:00 |
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Power Levels |
11 |
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Defrost |
Yes |
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Time Entry Option |
Yes |
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Microwave Distribution |
Rotating antennas, top and bottom |
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Magnetrons |
2 |
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Display |
LED |
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Stackable |
Yes |
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Stage Cooking |
Yes, 4 |
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Door Opening |
Automatic opening |
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Signal |
Door opens automatically |
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Temp. Display |
N/A |
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Exterior Dimensions |
D**18 ⅝” (473) W 13 ⅝” (346) H 17 ¾” (451) |
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Cavity Dimensions |
D 8 ¾” (222) W 11 ¾” (298) H 5 ⅜” (136) |
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Usable Cavity Space |
.319 cubic ft. (.009m3) |
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Exterior Finish |
Stainless steel |
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Interior Finish |
Stainless steel |
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Power Consumption |
3100 W |
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Power Output* |
2400 W* Microwave |
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Power Source |
208/230V, 60 Hz, 20 A single phase |
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Frequency |
2450 MHz |
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Product Weight |
70 lbs. (32 kg.) |
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Ship weight (approx.) |
73 lbs. (33 kg.) |
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Shipping Carton Size |
H 20 ⅝” (524) W 17” (432) H 22” (559) |
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UPS Shippable |
ISTA 3A approved small parcel |
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Measurements in ( ) and not specified are millimeters
*IEC 705 Tested
**Includes handle
6
OVEN CONSTRUCTION-
Left Outer Panel
Top Outer Panel
Right Outer Panel
Door
Left |
Top Outer |
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Outer |
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Panel |
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Panel |
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10
Right
Outer
Panel
Door
7
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