ACP MSO22 User manual

Service
Commercial Microwave Oven
AMSO & MSO Models
Service Manual
This Base Manual covers all
Commercial Microwave Ovens.
Refer to individual Technical Sheet
for information on specific models.
MSO22
MSO35
MSO35OS
MSO5211
MSO5351
MSO5353
AMSO22
AMSO35
AMSO5353
This manual is to be used by qualified
service technicians only. ACP, Inc.
does not assume any responsibility for
property damage or personal injury for
improper service procedures done by
an unqualified person.
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TABLE OF CONTENTS
IMPORTANT SAFETY INSTRUCTIONS................................................................................1-3
Oven Specifications .............................................................................................................4
Installation & Cleaning..........................................................................................................5
Quick Start Reference Guide.............................................................................................6-7
User Options.........................................................................................................................8
Cooking Instructions.............................................................................................................9
Component Location......................................................................................................10-15
Door and Door Switch Adjustment.................................................................................16-18
Service Test Mode .............................................................................................................19
Microwave Power Test .......................................................................................................20
Component Specifications.............................................................................................21-24
Wiring and Schematic Diagrams….……………………………………….………………..25-29
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PRECAUTIONS TO AVOID POSSIBLE EXPOSURE
TO EXCESSIVE MICROW A VE 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 or 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.
IMPORTANT SAFETY INSTRUCTIONS
For additional product documentation or more detailed operating instructions visit:
www.acpsolutions.com
CONTACTINFORMATION
Any questions or to locate an authorized ACP servicer, call ACP ComServ Service Support.
–Inside the U.S.A. or Canada, call toll-free866-426-2621.
–Outside the U.S.A. and Canada, call319-368-8120.
–Email:[e-mail].
Warranty service must be performed by an authorizedACP servicer.ACP also recommends contacting
an authorized ACP servicer, or ACP ComServ Service Support if service is required after warranty
expires.
Important Safety Information. Read before using this oven.
Keep these instructions for future reference.
If the oven changes ownership, be sure this guide accompanies oven.
is the safety alert symbol. is used alert you
hazards. Obey safety messages that this
symbol avoid possible or death.
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Toreduce the risk of burns, electrical shock, fire, or personal injury when using
electrical equipment, basic safety precautions should befollowed.
1. READ AND FOLLOW the specific
“PRECAUTIONS TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE
ENERGY” on page 1.
2. This equipment MUST BE GROUNDED.
Connect only to properly GROUNDED outlet.See
“GROUNDING/EARTHING INSTRUCTIONS”
on page 4.
3. Install or locate this equipment ONLY in
accordance with the installation instructions in this
manual.
4. 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.
5. Use this equipment ONLY for its intended useas
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.
6. As with any equipment, CLOSE SUPERVISIONis
necessary when used by CHILDREN.
7. 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.
8. This equipment, including power cord, mustbe
serviced ONLY by qualified service personnel.
Special tools are required to service equipment.
Contact nearest authorized service facility for
examination, repair, or adjustment.
9. DO NOT cover or block filter (if applicable) or other
openings onequipment.
10. DO NOT store this equipment outdoors. DONOT
use this product near water –for example, neara
kitchen sink, in a wet basement, a swimming pool,
or a similar location.
11. DO NOT immerse cord or plug in water.
12. Keep cord AWAYfrom HEATED surfaces.
13. DO NOT let cord hang over edge of table or
counter.
14. See door cleaning instructions on page 4.
Cleaning and user maintenance shall not be
made by children without supervision.
15. Toavoid risk of fire in the oven cavity:
a. DO NOT overcook food. Carefully attendoven
when paper, plastic, or other combustible materials
are placed inside the oven to facilitate cooking.
b. Remove wire twist-ties from paper or plasticbags
before placing bag in oven.
c. If materials inside the oven ignite, keep ovendoor
d. CLOSED, turn oven off and disconnect thepower
cord, or shut off power at the fuse or circuit
breaker panel.
e. DO NOT use the cavity for storage. DO NOTleave paper
products, cooking utensils, or food in the cavity when not in
use.
17. For commercial use only.
18. It is hazardous for anyone other than a competentperson to
carry out any service or repair operation thatinvolves the
removal of any cover which gives protection against exposure
to microwave energy.
19. If the door or door seals are damaged, the oven mustnot be
operated until it has been repaired by a competent person.
20. Appliance is not to be used by children 8 years andbelow or
persons with reduced physical, sensory or mental capabilities
or lack of experience and knowledge, unless they have been
given supervision or instruction.
21. Children being supervised not to play with appliance.
22. Only use utensils that are suitable for use in microwave oven.
23. When heating food in plastic or paper containers, keepan eye
on the oven due to the possibility of ignition.
24. If smoke is observed, switch off or unplug the appliance and
keep the door closed in order to stifle any flames.
25. Failure to maintain the oven in a clean condition could lead to
deterioration of the surface that could adverselyaffect the life
of the appliance and possibly result in ahazardous situation.
26. The appliance should not be cleaned with a water jet (for
appliances intended to stand on the floor and which are not at
least IPX5).
27. Liquids or other foods must not be heated insealed
containers since they are liable to explode.
28. Microwave heating of beverages can result indelayed
eruptive boiling, therefore care must be taken when
handling the container.
Combination Ovens Only:
29. DO NOT insert oversized foods or oversized utensils ina
microwave/convection oven as they may create a fire, an
electrical arc, or risk of electrical shock.
30. DO NOT clean with metal scouring pads. Piecescan break off
the pad and touch electrical parts involving riskof electrical
shock.
31. DO NOT use paper products not intended forhigh
temperature cooking when equipment is operatedin
convection or combination mode.
32. DO NOT store any materials, other thanmanufacturer’s
recommended accessories, in this equipment when notin
use.
33. DO NOT cover any part of the oven with metal foil.Airflow
restriction will cause overheating of theoven.
34. DO NOT spray oven cleaning solutions toward therear inner
cavity surface. This will contaminate and damagethe
convection heating assembly.
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Toavoid risk of personal injury or property damage, observe the following safety
instructions:
General Use:
1. Do not use regular cooking thermometers
in oven. Most cooking thermometers contain
mercury and may cause an electrical arc,
malfunction, or damage to oven.
2. Never use paper, plastic, or other combustible
materials that are not intended for cooking.
3. When cooking with paper, plastic, or other
combustible materials, follow manufacturer’s
recommendations on product use.
4. Do not use paper towels which containnylon
or other synthetic fibers. Heated synthetics
could melt and cause paper to ignite.
5. Toavoid surface deterioration, keep the oven
in a clean condition. Infrequent cleaning could
adversely affect the life of the applianceand
possible result in a hazardous situation.
6. Clean oven regularly and remove any food
deposits.
Heating Foods and Liquids:
7. Liquids such as water, coffee, or tea are ableto
be overheated beyond the boiling pointwithout
appearing to be boiling due to surfacetension
of the liquid. Visible bubbling or boilingwhen
the container is removed from the microwave
oven is not always present. THIS COULD
RESULT IN VERY HOT LIQUIDS SUDDENLY
BOILING OVER WHEN A SPOONOR
OTHER UTENSIL IS INSERTEDINTO
THE LIQUID. Toreduce the risk of injury to
persons:
a. Do not overheat the liquid.
b. Stir the liquid both before andhalfway
through heating it.
c. Do not use straight-sided containerswith
narrow necks.
d. After heating, allow the container to stand
in the microwave for a short time before
removing it.
e. Use extreme care when inserting aspoon
or other utensil into the container.
8. Do not deep fat fry in oven. Fat couldoverheat
and be hazardous to handle.
9. 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.
10. Pierce skin of potatoes, tomatoes, and similar
foods before cooking with microwave energy.
When skin is pierced, steam escapes evenly.
11. Do not heat sealed containers or plastic bagsin
oven. Food or liquid could expand quicklyand
cause container or bag to break. Pierce or open
container or bag before heating.
12. Do not heat baby bottles in oven.
13. Baby food jars shall be open when heated and
contents stirred or shaken before consumption,
in order to avoid burns.
14. Never use oven to heat alcohol or food
containing alcohol as it can more easily catch
fire if overheated.
Additional Microwave Oven SafetyInstructions:
15. Do not operate equipment without load or foodin
oven cavity.
16. Use only popcorn in packages designed and
labeled for microwave use. Popping time varies
depending on oven wattage. Do not continue
to heat after popping has stopped. Popcornwill
scorch or burn. Do not leave ovenunattended.
17. Do not use metal utensils in oven.
18. An authorized servicer MUST inspectequipment
annually. Record all inspections and repairs for
future use.
Additional Combination Oven SafetyInstructions:
19. Do not pop popcorn in this oven.
20. Do not use metal utensils in oven except when
recommended by microwave food manufacturers
or recipe requires metal utensils in convection or
combination mode. Heat food in containers made
of glass or china if possible.
21. Oven temperature is at least 450°F in convection
mode. Verify plastic, paper or other combustible
materials are recommended by the manufacturer
to withstand the maximum oven temperature.
22. Racks, utensils, rack guides, and ovensurfaces
may become hot during or after use. Useutensils
or protective clothing, like pan grips or dryoven
mitts, when necessary to avoid burns.
23. Do not unplug oven immediately after use.
Internal fan must cool oven to avoid damage of
electrical components.
24. Caution: Toavoid burns, do not use containers
loaded with liquid or kitchen products that
become liquid by heating at levels abovethose
that can be easily observed.
CAUTION
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SPECIFICATIONS
All safety information must be followed
To avoid risk of electrical shock, personal injury, or death, disconnect power to oven and discharge capacitor
before servicing, unless testing requires power.
Models
AMSO22
MSO22
AMSO35
MSO35
MSO35OS
MSO5211
MSO5351
AMSO5353
MSO5353
Power Source
Voltage AC
240/208 VAC
240/208 VAC
230 VAC
230 VAC
400 VAC
Amperage (single unit)
20A
30 A
16A
30A
16A
Frequency
60 Hz
60 Hz
50 Hz
50 Hz
50 Hz
Single phase, 3 wire grounded
X
X
X
X
3 Ph 5 wire
Plug
NEMA 6-20
NEMA 6-30
Schuko CEE 7/7
IEC 309
IEC 309
Power Output
Nominal microwave energy
(IEC705)
2200 Watts
3500 Watts
2100 Watts
3500 Watts
3500 Watts
Minimum temperature rise (∆T)
22ºF/11.2ºC
35ºF/19.5ºC
21ºF/11.7ºC
35ºF/19.5ºC
35ºF/19.5ºC
Operating frequency
2450 MHz
2450 MHz
2450 MHz
2450 MHz
2450 MHz
Power Consumption
Cook condition microwave
3500 Watts
5100 Watts
3300 Watts
5400 Watts
5200 Watts
Dimensions
Cabinet
Width
25 5/8in 650mm
25 5/8in 650mm
25 5/8in 650mm
25 5/8in 650mm
25 5/8in 650mm
Height
18 5/8in 472mm
18 5/8in 472mm
18 5/8in 472mm
18 5/8in 472mm
18 5/8in 472mm
Depth
23 1/2in 597mm
23 1/2in 597mm
23 1/2in 597mm
23 1/2in 597mm
23 1/2in 597mm
Oven Interior
Width
21in 535mm
21in 535mm
21in 535mm
21in 535mm
21in 535mm
Height
9 7/8in 251 mm
9 7/8in 251 mm
9 7/8in 251 mm
9 7/8in 251 mm
9 7/8in 251 mm
Depth
13in 330 mm
13in 330 mm
13in 330 mm
13in 330 mm
13in 330 mm
Weight
Crated
161lb 73kg
161lb 73kg
161lb 73kg
161lb 73kg
161lb 73kg
Uncrated
146lb 66kg
146lb 66kg
146lb 66kg
146lb 66kg
146lb 66kg
CAUTION
!
!
WARNING
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INSTALLATION & CLEANING
Unpacking Oven
•Inspect oven for damage such as dents in door or inside ovencavity.
•Report any dents or breakage to source of purchase immediately.
Do not attempt to use oven if damaged.
•Remove all packing materials from oven interior.
•If oven has been stored in extremely cold area, wait a fewhours
before connecting power.
•A protective film is used to prevent scratching of the outer case during
transportation. Peel off the film from the exterior of the oven before
installation.
•The warning label provided with the oven must be placed ina
conspicuous location near the oven.
Radio Interference
Microwave operation may cause interference to WiFi network, radio, television, or
a similar oven. Reduce or eliminate interference by doingthe following:
•Clean door and sealing surfaces of oven according toprovided
instructions.
•Place WiFi network, radio, television, etc. as far as possible fromoven.
•Use a properly installed antenna on radio, television, etc. toobtain
stronger signal reception.
Oven Placement
•Do not install oven next to or above source of heat, such aspizza oven
or deep fat fryer. This could cause microwave oven to operate improperly
and could shorten life of electricalparts.
•Do not block or obstruct oven filter. Allow access for cleaning.
•Install oven on level countertop surface.
•Outlet should be located so that plug is accessible when oven isin
place.
Cleaning Interior, Exterior, and Door
Clean microwave oven daily with mild detergent inwarm water
using soft sponge or cloth. Wring sponge or cloth to remove
excess water before wiping equipment. Ifdesired,
boil a cup of water in microwave oven to loosen soil before cleaning. DO
NOT allow cooking residues such as grease or fat to remain in oven
interior for any length of time.
•Do NOT allow cooking residues to remain in oven cavity.
•Do NOT use abrasive cleansers or cleanerscontaining
ammonia.
These could damage finish.
•Do NOT use caustic cleaning products or those containing ammonia,
phosphates or chlorine in oven. These coulddamage oven. Use non-
caustic cleaner.
•NEVER pour water into microwave oven bottom.
•Do NOT use water pressure type cleaning systems.
•For more detailed cleaning instructions, see the Owner’s
Manual on-line at www.acpsolutions.com.
Grounding/EarthingInstructions
Oven MUST be
grounded. Grounding
reduces risk of electric
shock by providing an
escape wire for the
electric current, if an electricalshort
occurs. This oven is equipped with a
cord having a ground wirewith a
grounding plug. The plugmust be
plugged into an outlet that is properly
installed andgrounded.
Consult a qualified electrician or
servicer if grounding instructions are
not completely understood, or if doubt
exists as to whether theoven is
properlygrounded.
Do not use an extensioncord. If
the product power cord is too short,
have a qualified electrician
install a three-slot receptacle. This
oven should be plugged into a
separate circuit with the electrical
rating as provided in product
specifications (available on ACP’s
website atwww.acpsolutions.com).
When a microwave oven is on a circuit
with other equipment, an increase in
cooking times may be required and
fuses can be blown.
External Equipotential Earthing
Terminal (export only) Equipment has
secondaryearthing terminal. Terminal
provides external earthing connection
used in addition to earthing
prong on plug. Located
on outside of oven back,
terminal is marked with
symbol shown below.
o avoid risk of electrical shock, severe personal injury or death,
unplug power cord or open circuit breaker to oven before cleaning.
ARNING
o avoid risk of electrical shock or
death, this oven be grounded
and plug not be altered.
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QUICK START REFERENCE GUIDE
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USER OPTIONS
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COOKING INSTRUCTIONS
9
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DOOR SWITCH
USB
DISPLAY
“HIDDEN”
PAD
CONTROL KNOB Encoder board has to be
removed to remove knob
DOOR SWITCH
REMOVABLE
DIVIDER SHELF
(Slides Out)
REMOVABLE
TRAY (Strong Suction Cup)
ANTENNA
COVER
(14 Clips)
L.E.D.
L.E.D.
Front of Oven
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COMPONENT LOCATIONS

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TRANSFORMER
POWER
RELAY
POWER
RELAY
TRANSFORMER
MAIN
FUSES
OVEN
THERMAL
CUTOUT
(under cover)
MONITOR
RELAY BOARD
MONITOR
RELAY BOARD
ANTENNA MOTOR
CONTROL BOARD
ANTENNA MOTOR
DISPLAY BOARD
Top of Oven
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CAPACITORS
DOOR
SPRING
Secondary
Switch
RIGHT SIDE HIGH VOLTAGE SYSTEM FUSES (Top Fuse = Top System)
Monitor
Switch
DOOR
HINGE ARM
Right Side of Oven
Primary
Switch
LED Light
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Primary
Switch
Secondary
Switch
DOOR
HINGE ARM
CAPACITORS
DOOR
SPRING
HIGH VOLTAGE SYSTEM FUSES (Top = Top System)
LED LIGHT
Monitor
Switch
Left Side of Oven
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TRANSFORMER
CAPACITORS
&
DIODES
TRANSFORMER
MAGNETRON #3
MAGNETRON
BLOWER
TRANSFORMER
CAPACITORS
&
DIODES
TRANSFORMER
MAGNETRON #4
MAGNETRON
MAIN FUSES
BLOWER HOUSING
H.V. FUSE
(each Transformer)
Back of Oven - Removed
MAGNETRON TCO
(each Magnetron)
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EXHAUST OUTLET COVER
POWER
CORD
EXHAUST SCREEN
Back of Oven
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Figure 2
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DOOR & DOOR SWITCH ADJUSTMENT
1. Remove the outer case.
2. Using a pencil or pen, mark the position of both door hinge arms as shown in Figure 1.
3. While holding the door closed, carefully remove both door springs and open the door the full position.
4. While providing support to the open door remove the Hole Plugs and Shoulder Bolts using the 2mm Hex
Key Wrench as shown in Figure 2 and remove the Hinge Arms.
Figure 1
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Figure 3
17
5. Remove the Door Hinge Screws (2 on each side) and remove the old door.
6. Place the new door into position and install the new TC/Hex Screws finger tight.
7. Place a small drop of the provided Blue Threadlock to the threads of the new Shoulder Bolts and reattach
Door Arms, Hole Plugs, and Door Springs. Door Arms will be out of adjustment from the marks made in
Step 2. See Figure 3.
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