Alto-Shaam ASC-2E8 ASC-4E Troubleshooting guide

W164 N9221 Water Street • P.O. Box 450 • Menomonee Falls, Wisconsin 53052-0450 USA
PHONE: [phone] • 800.558.8744
USA/CANADA
FAX: [phone] • 800.329.8744
U.S.A. ONLY
www.alto-shaam.com
Model:
ASC-2E
ASC-4E
Electronic
Control
Convection Oven
Electric
  •InstallatIon
 •operatIon
•MaIntenance
MN-28665 • 10/11
printed i n u.s.a.
ASC-2E
with
Mobile Stand Option 5004687
ASC-4E
with
Stand Option 5003489

i
Delivery ....................................................................1
Unpacking ................................................................1
Safety Procedures and Precautions..........................2
Installation
Site Installation ...................................................3
Clearance Requirements .....................................3
Dimension Drawings ............................................4
Installation Requirements ....................................5
Leveling...............................................................5
Restraint Requirements .......................................5
Electrical Connection ...........................................6
Stacking Instructions (ASC-2E)............................7
Stacking Instructions (ASC-4E)............................8
Oven Stand Assembly Option ..............................9
Operating Instructions
User Safety Information ..................................... 10
Start-Up Operation............................................. 10
Capacity ............................................................ 10
Options & Accessories....................................... 10
Pan/Shelf Positioning......................................... 11
Electronic Control Operation and Features ... 12-15
Cooking Guidelines............................................ 16
Care and Cleaning
Cleaning and Preventative Maintenance ............ 17
Protecting Stainless Steel Surfaces ................... 17
Cleaning Agents ................................................ 17
Cleaning Materials............................................. 17
Equipment Care................................................. 18
Clean Daily........................................................ 18
Exterior.............................................................. 18
Motor Care ........................................................ 18
Service
Troubleshooting Guide....................................... 19
Full Assembly View (ASC-2E)............................ 20
Control Assembly (ASC-2E)............................... 21
Full Assembly View (ASC-4E)............................ 22
Interior Oven Compartment View (ASC-4E) ....... 23
Service Parts List .............................................. 24
Wire Diagrams
Always refer to the wire diagram(s) included with the
unit for most current version.
Warranty
Transportation Damage and Claims.....Back Cover
Limited Warranty .................................Back Cover

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 1
DELIVERY
This Alto-Shaam appliance has been
thoroughly tested and inspected to ensure only
the highest quality unit is provided. Upon
receipt, check for any possible shipping damage
and report it at once to the delivering carrier.
See Transportation Damage and Claims section
located in this manual.
This appliance, complete with unattached
items and accessories, may have been delivered
in one or more packages. Check to ensure that all
standard items and options have been received
with each model as ordered.
Save all the information and instructions
packed with the appliance. Complete and return
the warranty card to the factory as soon as
possible to ensure prompt service in the event of a
warranty parts and labor claim.
This manual must be read and understood
by all people using or installing the equipment
model. Contact the Alto-Shaam Tech Team Service
Department if you have any questions concerning
installation, operation, or maintenance.
NOTE: All claims for warranty must include the
full model number and serial number of
the unit.
UNPACKING
1. Carefully remove the
appliance from the
carton or crate.
NOTE: Do not discard the
carton and other
packaging material
until you have
inspected the unit
for hidden damage
and tested it for
proper operation.
2. Read all instructions in this manual carefully
before initiating the installation of this appliance.
DO NOT DISCARD THIS MANUAL.
This manual is considered to be part of the
appliance and is to be provided to the owner
or manager of the business or to the person
responsible for training operators. Additional
manuals are available from the Alto-Shaam
Tech Team Service Department.
3. Remove all protective plastic film, packaging
materials, and accessories from the appliance
before connecting electrical power. Store any
accessories in a convenient place for future use.
®
®

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 2
CAUTION
Used to indicate the presence of a hazard that
can or will cause minor personal injury, property
damage, or a potential unsafe practice if the
warning included with this symbol is ignored.
CAUTION
Used to indicate the presence of a
hazard that can or will cause minor or
moderate personal injury or property
damage if the warning included with
this symbol is ignored.
DANGER
Used to indicate the presence of
a hazard that WILL cause severe
personal injury, death, or substantial
property damage if the warning
included with this symbol is ignored.
WARNING
Used to indicate the presence of
a hazard that CAN cause personal
injury, possible death, or major
property damage if the warning
included with this symbol is ignored.
1. This appliance is intended to cook, hold
or process foods for the purpose of human
consumption. No other use for this appliance is
authorized or recommended.
2. This appliance is intended for use in commercial
establishments where all operators are
familiar with the purpose, limitations, and
associated hazards of this appliance. Operating
instructions and warnings must be read and
understood by all operators and users.
3. Any troubleshooting guides, component views,
and parts lists included in this manual are for
general reference only and are intended for use
by qualified technical personnel.
4. This manual should be considered a permanent
part of this appliance. This manual and all
supplied instructions, diagrams, schematics,
parts lists, notices, and labels must remain with
the appliance if the item is sold or moved to
another location.
NOTE: Used to notify personnel of
installation, operation, or
maintenance information that is
important but not hazard related.
SAFETY PROCEDURES
AND PRECAUTIONS
Knowledge of proper procedures is essential to the
safe operation of electrically and/or gas energized
equipment. In accordance with generally accepted
product safety labeling guidelines for potential
hazards, the following signal words and symbols
may be used throughout this manual.
NOTE
For equipment delivered for use
in any location regulated by the
following directive:
DO NOT DISPOSE OF ELECTRICAL
OR ELECTRONIC EQUIPMENT WITH
OTHER MUNICIPAL WASTE.

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 3
INSTALLATION
SITE INSTALLATION
The Alto-Shaam convection
oven must be installed in
a location that will permit
the oven to function for its
intended purpose and to
allow adequate clearance for
ventilation, proper cleaning,
and maintenance.
1. Hood installation is recommended.
(
CHECK LOCAL CODES
).
2. The oven must be installed on a stable and
level surface.
3. DO NOT install this oven in any area where it may
be affected by any adverse conditions such as steam,
grease, dripping water, high temperatures, etc.
4. DO NOT store or use any flammable liquids or
allow flammable vapors in the vicinity of this
oven or any other appliance.
5. This appliance must be kept free and clear of any
combustible materials.
6. This appliance must be kept free and clear of
any obstructions blocking access for maintenance
or service.
®

NET:
203 lb (92 kg)
SHIP:
278 lb (126 kg)
CRATE 35" L X35" W X41" H
DIMENSIONS:
(889mm x 889mm x 1041mm)
MINIMUM ENTRY CLEARANCE
31-1/2" (800mm
) UNCRATED
H x W x D
EXTERIOR
: 32-1/8" x 30" x 30-1/8" (815mm x 762mm x 815mm)
INTERIOR
: 20" x 15" x 21" (508mm x 381mm x 533mm)

NET:
490 lb (222 kg)
SHIP:
535 lb (243 kg)
CRATE 53" L X45" W X49" H
DIMENSIONS:
(1346mm x 1143mm x 1245mm)
MINIMUM ENTRY CLEARANCE
31-1/2" (800mm
) UNCRATED
H x W x D
EXTERIOR
: 57-1/2" x 38" x 44-1/2" (1461mm x 965mm x 1130mm)
INTERIOR
: 24" x 29-1/8" x 25" (610mm x 740mm x 635mm)

BACK:
0" (0mm)
LEFT SIDE:
2" (51mm)
RIGHT SIDE:
2" (51mm)
FROM GREASE PRODUCING EQUIPMENT
: 6" (152mm)
RECOMMENDED SERVICE ACCESS
:20" (508mm) right side
DANGER
IMPROPER INSTALLATION,
ALTERATION, ADJUSTMENT,
SERVICE, OR MAINTENANCE COULD
RESULT IN SEVERE INJURY, DEATH,
OR CAUSE PROPERTY DAMAGE.
READ THE INSTALLATION,
OPERATING AND MAINTENANCE
INSTRUCTIONS THOROUGHLY
BEFORE INSTALLING OR SERVICING
THIS EQUIPMENT.
CAUTION



CAUTION
METAL PARTS OF THIS EQUIPMENT
BECOME EXTREMELY HOT WHEN
IN OPERATION. TO AVOID BURNS,
ALWAYS USE HAND PROTECTION
WHEN OPERATING THIS APPLIANCE.
DANGER
DO NOT store or use gasoline or other
flammable vapors or liquids in the
vicinity of this or any other appliance.

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 4
INSTALLATION
30-5/8" (778mm)
8" (203mm)
CAVITY VENT
ELECTRICAL
INLET
3-5/32"
(80,1mm)
9-15/16" (252mm)
ELECTRICAL ENTRANCE
123°
129°
29" (737mm)
CAVITY WIDTH
38" (965mm)
31-1/16" (789mm)
4" (102mm)
ELECTRICAL INLET
54-5/8" (1387mm)
44-1/2" (1130mm)
26-1/2" (673mm)
57-1/2" (1461mm)
30" (762mm)
28-3/16" (715mm)
3-15/16" (100mm)
32-1/8" (815mm)
3-3/8" (86mm)
23-1/4" (590mm)
4-11/16"
(119mm)
1"
(25mm)
21-1/8 (536mm)
3-1/4"
(83mm)
25-7/16 (646mm)
30-1/8" (815mm)
Exhaust Electrical
2" (51mm)
from bottom

ASC-2E ASC-4E

72lb(33kg)maximum•45qts(43liters)
Twelve (12): 18" x 26" x 1" full-size sheet pans
6 chrome plated wire shelves with
2 removable side racks and 12 shelf positions
spaced at 1-3/4" (43mm)

27 lb (12 kg)
MAXIMUM
— 17 qts (15 liters)
Nine (9): 18" x 13" x 1" half-size sheet pans
5 chrome plated wire shelves with
2 removable side racks and 9 shelf positions
spaced at 1-5/8" (41mm)
MINIMUM 6 INCH
CLEARANCES FROM
COMBUSTIBLES AND
NON-COMBUSTIBLES
Ne pas installer à
une distance inférirure
à celle indiquée
ci-dessous d'une paroi
en matiére combustible:
Côtés 6 pouches,
Arriére 6 pouches
FOR USE ONLY ON
NON-COMBUSTIBLE
FLOORS.
Doit être utilisé
seulement sur des
planchers non
inflammables.
INTENDED FOR
OTHER THAN
HOUSEHOLD USE.
Destiné à un usage
autre que domestique.
3107173
MINIMUM 6 INCH
CLEARANCES FROM
COMBUSTIBLES AND
NON-COMBUSTIBLES
Ne pas installer à
une distance inférirure
à celle indiquée
ci-dessous d'une paroi
en matiére combustible:
Côtés 6 pouches,
Arriére 6 pouches
FOR USE ONLY ON
NON-COMBUSTIBLE
FLOORS.
Doit être utilisé
seulement sur des
planchers non
inflammables.
INTENDED FOR
OTHER THAN
HOUSEHOLD USE.
Destiné à un usage
autre que domestique.
3107173

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 5
INSTALLATION
The oven must be mounted on the factory equipped
oven legs or on an optional oven stand. Installation
on a solid or concrete base that in any way restricts
air flow may void the warranty.
All clearances for a proper ventilation air supply
must be maintained to minimize fire hazard. Do not
locate the oven immediately adjacent to any other
heat-generating appliance.
A number of adjustments are associated with
initial installation and start-up. Adjustments
must be conducted by a qualified service
technician. Installation and start-up adjustments
are the responsibility of the dealer or user.
These adjustments include but are not limited
to thermostat calibration, door adjustment, and
leveling. The Platinum series oven burners are
factory-adjusted with fixed air openings and require
no field adjustment.
LEVELING
The oven should be leveled before
the gas supply is connected. Level the oven from
side-to-side and front-to-back with the use of a
spirit level. For ovens installed on a mobile stand,
it is important that the floor surface be level due to
the probability of frequent oven repositioning.
We recommend checking the level of the oven
periodically to make certain the floor has not
shifted nor the oven moved.

DANGER
IMPROPER INSTALLATION,
ALTERATION, ADJUSTMENT,
SERVICE, OR MAINTENANCE COULD
RESULT IN SEVERE INJURY, DEATH,
OR CAUSE PROPERTY DAMAGE.
READ THE INSTALLATION,
OPERATING AND MAINTENANCE
INSTRUCTIONS THOROUGHLY
BEFORE INSTALLING OR SERVICING
THIS EQUIPMENT.
CAUTION
TO PREVENT PERSONAL INJURY,
USE CAUTION WHEN MOVING OR
LEVELING THIS APPLIANCE.
RESTRAINT REQUIREMENTS
—MOBILE EQUIPMENT
Any appliance that is not furnished with a power
supply cord but includes a set of casters must be
provided with a tether. Adequate means must be
provided to limit the movement of this appliance
without depending on or transmitting stress to the
electrical conduit. The following requirements apply:
1. Casters must be a maximum height of 6" (152mm).
2. Two of the casters must of be the locking type.
3. Such mobile appliances or appliances on mobile
stands must be installed with the use of a flexible
connector secured to the building structure.
A mounting connector for a restraining device
is located on the lower back flange of the appliance
chassis or on an oven stand, approximately
18" (457mm) from the floor. A flexible connector
is not supplied or available from the factory.
WARNING

Appliance must be secured
to building structure.
Where automatically operated appliances are vented through a ventilating hood or
exhaust system equipped with a damper or with a power means of exhaust, provisions
shall be made to allow the equipment to operate only when the damper is open to a
position to properly vent the appliance and when the power means of exhaust is in
operation.
ACCORDANCE WITH NFPA 54 COMMONWEALTH O F MASSACHUSETTS ONLY.

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 6
INSTALLATION
The oven must be installed by a qualified electrician.
This appliance must be branch circuit protected
with proper ampacities, in accordance with the
wiring diagram located in this manual or in the
electrical compartment of the oven. The oven
must be properly grounded in accordance with the
National Electrical Code and applicable local codes.
Plug the unit into a properly grounded receptacle
ONLY, positioning the unit so that the plug is easily
accessible in case of an emergency. Arcing will
occur when connecting or disconnecting the unit
unless all controls are in the “off” position.
Proper receptacle or outlet configuration or
permanent wiring for this unit must be installed by
a licensed electrician in accordance with applicable
local electrical codes.
Wire size for the main incoming power to the
unit must match the minimum size listed in the
specifications applicable to the specific oven model.
For supply connections, locate the wire size posted
on the label located near the electric terminal block
behind the service panel or elsewhere listed in this
manual. Before attempting the electrical connection,
the rating plate should be checked to ensure that
the electrical characteristics of the appliance and the
electrical supply characteristics agree.
Installation of the wiring must be made in
accordance with U.L. 197 Commercial Electric
Cooking Appliance Standards, Local and/or
National Electrical Code, ANSI /NFPA 70-1990.
Service line entry is made through the rear of the
oven for connection to the terminal block. Remove
the service panel on the right side of the oven for
access to the terminal block.
The oven is wired at the factory for either single
phase or three phase service as indicated on the
original purchase order. Input voltage and phase
must match the voltage and phase of the oven.
Visually check all electrical connections.
DANGER
To avoid electrical shock, this
appliance MUST be adequately
grounded in accordance with local
electrical codes or, in the absence of
local codes, with the current edition
of the National Electrical Code ANSI/
NFPA No. 70. In Canada, all electrical
connections are to be made in
accordance with CSA C22.1, Canadian
Electrical Code Part 1 or local codes.
ELECTRICAL CONNECTION
DANGER
ELECTRICAL CONNECTIONS MUST
BE MADE BY A QUALIFIED SERVICE
TECHNICIAN IN ACCORDANCE WITH
APPLICABLE ELECTRICAL CODES.

VOLTAGE PHASE CYCLE/HZ AWG AMPS
kW
208 (
AGCY)
160 10 24.0 5.0
240 (
AGCY)
160 10 20.8 5.0
208 (
AGCY)
360 12 13.8 5.0
240 (
AGCY)
360 12 12.0 5.0
N O CORD AND PLUG
Wire diagrams are located in the inside access panel of the unit
DANGER
ENSURE POWER SOURCE
MATCHES VOLTAGE STAMPED
ON APPLIANCE NAMEPLATE.

VOLTAGE PHASE CYCLE/HZ AWG AMPS
kW
208 (
AGCY)
160 650.0 10.4
240 (
AGCY)
160 643.3 10.4
208 (
AGCY)
360 828.8 10.4
240 (
AGCY)
360 825.0 10.4
480 (
AGCY)
360 812.5 10.4
220 (
AGCY)
150 640.0 8.7
N O CORD AND PLUG

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 7
INSTALLATION

(2-ASC-2E/STK SHOWN)
CAUTION
TO PREVENT PERSONAL INJURY,
USE CAUTION WHEN MOVING OR
LEVELING THIS APPLIANCE.
Note: Actual unit may be
different than shown.
Part numbers and drawings are subject to change without notice.

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 8
INSTALLATION

(2-ASC-4E/STK 208/240V SHOWN)
After legs or casters have been installed
on the bottom oven, place the upper oven
on top of lower unit. Align.
 DESCRIPTION PART NO. 
2RISER, FLUE ELECTRIC 1004984 1
3SCREW, #10 SMS .5LG SC-26520 5
Note: Actual unit may be
different than shown.
2
3
Remove top elbow vent
prior to installing riser.
Assemble venting
components 2 & 3
as shown
CAUTION
TO PREVENT PERSONAL INJURY,
USE CAUTION WHEN MOVING OR
LEVELING THIS APPLIANCE.
Part numbers and drawings are subject to change without notice.

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 9
INSTALLATION
8
1
1
7
3
4
29
1
2
34-5/16" (876mm)
5
6
2
38" (956mm)

 DESCRIPTION PART NO. 
1LEG SUPPORT ASSEMBLY 5003488 2
2CHANNEL, SUPPORT 1004459 2
3 LEG LG-22185 4
*CASTERS, RIGID CS-25674 2
*CASTERS, SWIVEL W/BRAKE CS-25675 2
4BRACKET, STAND 1004461 1
5BRACKET, ATTACHMENT 1004369 2
6CHANNEL, BACK 1004460 1
7SHELF, STAND 1004466 1
8RACK, OVEN SUPPORT SR-26551 2
9OVEN RACK SH-26795 6
10 *SCREWS, 1/4-20 X 1/2 HEX HEAD SC-22729 27
11 *NUT, 1/4-20 NYLON INSERT, 18-8 S/S NU-23984 27
12 *LOCK WASHER, 1/4" STAINLESS STEEL WS-2294 27
*NOT SHOWN
OVEN STAND 5003489 SHOWN
Part numbers and drawings are subject to change without notice.

OPERATING INSTRUCTIONS
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 10

CAUTION
METAL PARTS OF THIS EQUIPMENT
BECOME EXTREMELY HOT WHEN
IN OPERATION. TO AVOID BURNS,
ALWAYS USE HAND PROTECTION
WHEN OPERATING THIS APPLIANCE.

•TURNALLSWITCHESOFF.
•WAITUNTILPOWERISRESTOREDBEFORE
ATTEMPTING TO OPERATE THE OVEN.
NOTE:If such an event has occurred, it is strongly
recommended that you ensure the food in
the oven is safe for consumption according
to local health regulations.
This appliance is intended for use in commercial
establishments by qualified operating personnel
where all operators are familiar with the purpose,
limitations, and associated hazards of this appliance.
Operating instructions and warnings must be read
and understood by all operators and users.
BEFORE INITIAL USE:
Interior oven surfaces must be heated to remove
surface oils and the accompanying odor produced
during the first use of the oven.
1. Wipe all wire shelves, side racks and the
full oven interior with a clean, damp cloth.
2. Close the oven doors, press the power switch
to the
ON
position, and set the thermostat to
300°F (149°C).
3. Allow the oven to cycle for approximately
2 hours or until no odor is detected.

Always preheat a cold oven for a minimum of
20 minutes before cooking product. Follow
the operating instructions indicated on the next
few pages of this manual.

27 lb (12 kg)
MAXIMUM
— 17 qts (15 liters)
Nine (9): 18" x 13" x 1" half-size sheet pans
5 chrome plated wire shelves with
2 removable side racks and 9 shelf positions
spaced at 1-5/8" (41mm)

72lb(33kg)maximum•45qts(43liters)
Twelve (12): 18" x 26" x 1" full-size sheet pans
6 chrome plated wire shelves with
2 removable side racks and 12 shelf positions
spaced at 1-3/4" (43mm)
START-UP OPERATION

CASTER SET,6" (152mm)
FOR MOBILE STACK APPLICATIONS
5003790
COOLING RACK
FOR OVEN STAND
5003791
LEG SET (4)
6" (152mm) with Bullet Feet 5003794
6" (6152mm) with Seismic Feet 5003795
25" (635mm) with Seismic Feet 5003785
PANEL FOR BACK, Stainless Steel 5005876
SHELF, OVEN RACK
INTERCHANGEABLE WITH COOLING RACK
SH-26795
STACKING HARDWARE
SEE INDIVIDUAL STACKING COMBINATION SPECIFICATION SHEETS
STAND, STAINLESS STEEL
Mobile, with Cooling Racks & Casters, 38" H (965mm) 5003786
Stationary, with Cooling Racks & Bullet Feet 5003489
Stationary, with Cooling Racks & Seismic Feet 5003787
34-1/4"(870mm)min.•35-1/2"(902mm)max.H
(FEET ARE ADJUSTABLE)

CASTER KIT, 6" (152mm) 5013871
LEG KIT, 4" (102mm)
Seismic feet 5004688
LEG KIT
with Bullet feet, 19-1/2" (495mm)
HEIGHT
5005169
with Seismic feet, 19-1/2" (495mm)
HEIGHT
5005168
with Casters, 23" (584mm)
HEIGHT
5005181
SHELF, OVEN RACK SH-26894
STACKING HARDWARE
SEE INDIVIDUAL STACKING COMBINATION SPECIFICATION SHEETS
STAND, SINGLE OVEN
with Bullet feet, 26-1/2" (673mm)
HEIGHT
5004672
with Seismic feet, 26-1/2" (673mm)
HEIGHT
5005172
with Casters, 30" (762mm
) HEIGHT
5004687

OPERATING INSTRUCTIONS
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 11

The oven includes 6 chrome plated wire shelves
with two removable side racks and 12 shelf
positions spaced at 1-3/4" (43mm).
1. The best arrangement for broiling, baking
cookies and for other baked goods
under 2-1/2" (65mm) in height. This
arrangement can also be used as the
maximum capacity for reconstituting
frozen entrées.
2. General baking with the use of sheet pans
for products under 3-1/2" (89mm)
in height. Products include cakes, pies,
muffins, or extended dishes in
12" x 20" x 2-1/2" deep pans
(530mm x 325mm x 65mm GN 1/1).
3. Ideal positions for baking bread,
meringue, or extended dishes and roasts
in pans not to exceed 5-1/2" (140mm)
in height.
4. Arrangement necessary for roasting
whole turkey or roasts up to 7" (178mm)
in height.
POSITION
2
4
6
8
12
POSITION
1
4
7
10
POSITION
1
5
9
POSITION
1
6
1.
The best arrangement for broiling, baking
cookies and for other baked goods under
2-1/2" (65mm) in height. This arrangement
can also be used as the maximum capacity for
reconstituting frozen entrées.
2. General baking with the use of sheet pans
for products under 3-1/2" (89mm) in height.
Products include cakes, pies, muffins, or
extended dishes in 12" x 20" x 2-1/2" deep
pans (530mm x 325mm x 65mm GN 1/1).
3. Ideal positions for baking bread, meringue,
or extended dishes and roasts in pans not to
exceed 5-1/2" (140mm) in height.
4. Arrangement necessary for roasting whole
turkey or roasts up to 7" (178mm) in height.

The oven includes 5 chrome plated wire
shelves with two removable side racks and
9 shelf positions spaced at 1-5/8" (41mm).
POSITION
2
4
6
8
POSITION
1
4
7
POSITION
1
5
POSITION
1
6
CAUTION
METAL PARTS OF THIS EQUIPMENT
BECOME EXTREMELY HOT WHEN
IN OPERATION. TO AVOID BURNS,
ALWAYS USE HAND PROTECTION
WHEN OPERATING THIS APPLIANCE.

OPERATING INSTRUCTIONS
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 12
1
BLED DISPLAY
CUP/DOWN ARROWS
DCOOK INDICATOR
E
FPROBE INDICATOR
GPRESET INDICATOR
HCOOK KEY
IPROBE KEY
J
KPRESET LOCK KEY
LSTART/STOP KEY
M PRESET KEYS 1-7
NCANCEL KEY
OFAN SPEED KEY
PCOOL DOWN KEY
Q
CONTROL
IDENTIFICATION 1
2
4
5
H
L
I
P
3
6
7
O
J
Q
M
K
N

OPERATING INSTRUCTIONS
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 13
 Q“ON.”
 •Thedisplay2will alternate between last
Cook Set Temperature and actual Cavity
Temperature.
 •TheovenwillpreheattopreviousCook
temperature, and the  Indicator 1
will illuminate.
To terminate procedure,
press START/STOP key Ltwice.
 
ACCEPTABLE, PROCEED TO STEP C.
1. to Cook by timE:
    •PressCOOKH
•Presslit Key J
•Confirmfanspeed.
•Adjustthecookingtemperaturewiththe
UP or DOWN arrow keys C.
Note: The  Indicator Dwill remain lit.
2. to Cook by probE (optionAl):
    •PressCOOK H
•PresslitPROBE Key I
•Confirmfanspeed.
•Adjustthecookingtemperaturewiththe
UP or DOWN arrow keys C.
Note: The PROBE Indicator Fwill remain lit.
Note: If more than 5 seconds elapse
before a decision is made, the mode button
must be pushed again to continue.


 •TheSTART Key Land READY Indicator A
will flash.
 •Thecontrolwillproduceanaudiblebeepevery
30 seconds.
1. 
a. to Cook by timE:
•ThedisplayBwill alternate between
cook cycle temperature and remaining
cooking time when cooking by 
b. to Cook by probE (optionAl):
•Ifcookingbyprobe,removeprobefrom
its bracket, wipe the probe tip with a
disposable alcohol pad and properly insert
probe into product.
•The display will alternate between set
cooking temperature, probe temperature,
and elapsed time when cooking by PROBE.
  
START KEY.
3. 
PRODUCT IS READY:
   • Thedisplaywillindicate“DONE”.
   • TheSTART/READY indicates will flash,
and the oven will beep every 30 seconds.
 
AVOID OVERCOOKING.
To terminate procedure,
press START/STOP key twice.
 
 Open door.
 Press COOL DOWN key P.
1. Cool ContinuouSly
   • Fanwillruncontinuously.
   • ShutoffPOWERtoterminate.
2. SEt Cool down tEmpErAturE
   •Setdesiredcooldowntemperaturewith
UP/DOWN arrows C. The cool down
temperature ranges from 80° to 450°F.
   •Fanwillruncontinuously.
   •Whenthedesiredcooldowntemperature
is reached, “COOL/STOP” will light on
the LED, and the oven will beep every
30 seconds.
Note: If more than 4 seconds elapse
before a decision is made, the mode button
must be pushed again to continue.
NOTE: START/STOP key will stop fan, and
terminate the COOL/DOWN feature.


ELECTRONIC CONTROL OPERATION

OPERATING INSTRUCTIONS
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 14

This Alto-Shaam electronic convection oven allows the operator
to program up to seven cooking procedures. Each cooking
program entered can be preset in any program function to cook
by time (or probe, if a probe is included on the oven). Cooking
programs are stored and recalled with M, the PRESET keys
labeled “1through 7.”
Press  Q“ON.”
 • Thedisplay2will alternate between last Cook Set
Temperature and actual cavity temperature. The oven will
begin preheating and the Preheat Indicator 1will illuminate.
The fan will operate at high speed 
follow inStruCtionS liStEd on thE
prEviouS pAgES of thiS mAnuAl.
Press and hold selected PRESET key 1through 7 for 4 seconds
 • A beep sounds.
 • The numbered key program indicator light will illuminate.
The programmed procedure is now stored in memory for the specific
number key selected. To lock PRESET keys 1through7, press
PRESET key Ksimultaneously with up arrow C. To unlock, press
the preset key Ksimultaneously with the down arrow C.
At this point, press START/STOP Ltwice. This will protect
the PRESET in case of a power outage.

After programming a specific product into memory on the preset
key, it is very important to make a written permanent record of
the product and the program letter assigned.


To erase a program, the oven must be in the PREHEAT mode.
The oven cannot be running a PRESET Menu program.
 •WhentheovenisinthePREHEAT mode, press and hold both
the CANCEL key Nand the appropriate number PRESET
key Mto be erased. Hold both keys until the oven double
beeps, and the program's indicator light goes out. This
indicates the program has been erased.
NOTE:
•Iftheoventemperatureis
higher than the PRESET
program, utilize the
COOL DOWN mode.
•TimeandTemperature have
been programmed in the
PRESET key -- they cannot
be adjusted during the
PRESET cooking cycle.

 •PressdesiredPRESET key (1 thru 7) M.Preheat will begin.
 •Theovenwillbeepwhenthepreheattemperaturehasbeenreached.
 •Loadfoodinsidetheoven.
If cooking by probe, remove probe from its bracket, wipe the tip with a
disposable alcohol pad and insert probe properly into product.
 •Closethe
oven door.
 •PressSTART.
1
2
4
5
H
L
I
P
3
6
7
O
J
Q
M
K
N

OPERATING INSTRUCTIONS
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 15
Stop an Operation:
Press Start/stop LKey. The oven will remain in
a power-on state, and the operation will be cancelled.
Press Cook 8to set procedure again.
Adding product after Start:
If the door is opened during cook cycle, the heater,
fan, and timer will disengage. “Door” will illuminate
in the display. The timer will be held to the last
value at the point of interruption. The oven will
continue operation from the point of interruption
when the door is closed.
Arrow Keys:
Cook, Hold and Probe Temperature set points can
be adjusted by 1° when pressing the ARROW
Keys. To adjust in steps of 10°, press and hold the
 Key and ARROW Key at the
same time.
The Time setting is adjusted in increments of 1
minute by pressing the ARROW Keys. To make
adjustment in steps of 10 minutes, press and hold the
 Key and ARROW Key at the same time.
To run oven continuously
at a SET temperature:
Set Cook temperature, set  to "--:--
". The oven will run continuously at that SET
temperature. The display will alternate between the
set-temperature and "--:--", signifying continuous
cooking. The operator is then responsible for timing
the cooking loads. To disengage, press Start/Stop.
Fan Speed:
The fan speed can be adjusted to HIGH or LOW
during any preheat or cook cycle (including
presets). When high speed is selected, the
underscore bar below the Fan Speed key will
illuminate. The display will indicate . When
low speed is selected, the underscore bar below the
Fan Speed key will not be illuminated. The display
will indicate “FnLo”.
NOTE: The time and temperature can be adjusted
during the cooking mode, (unless a preset
key program is used).
Probe Usage:
When the oven probe remains inserted in the probe
bracket, the LED temperature display will indicate
the ambient air temperature inside the oven. To
use the probe for cooking remove it from the bracket
and wipe the full length of the metal probe with
a disposable alcohol pad to clean and sanitize
before using.
Only the tip of the probe senses the internal
product temperature; therefore, it is important the
tip be placed correctly in the product for internal
temperature accuracy. Push the probe tip halfway
into the product, positioning the tip at the center of
the food mass. When inserting the probe into solid
foods such as meat roast or poultry breasts, push the
probe in from a straight downward position or in
from the side to the center position. If placing into a
semi-liquid or liquid product, the probe cable must
be secured to keep the probe positioned properly.
Do not let the probe tip touch the edges, bottom or
side of a container. Tape the probe cable to the lip
or edge of the container.
Probe Calibration:
1. To verify product probe calibration, place the
probe in a warm glass of water along with a
quality independent digital thermometer and
press the probe key for two (2) seconds to display
the probes actual temperature. Compare readings.
2. If calibration is required, press the probe key
for eight (8) seconds until the unit beeps twice
and the probe offset is displayed. Adjust the
probe offset to match the difference between the
independent probe temperature and the control
probe temperature by pressing the up or down
arrows to increase or decrease the offset.
3. Repeat steps 1 and 2 to verify the probe
calibration as necessary.
NOTE: When cooking by probe, insert the probe
into the raw product after the oven has been
preheated.
WAIT ONE FULL MINUTE to allow the probe
temperature to decrease to the internal temperature
of the product. Press the start button to begin
the cooking process after this probe temperature
adjustment period. A false probe reading of the
internal product temperature will cause the oven to
default to a holding temperature.

ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 16

The Alto-Shaam convection oven will provide the best results and longest possible
service with the utilization of the following suggestions and guidelines.
NOTE: Moisture will escape around the doors when baking products with a heavy
moisture content such as chicken, potatoes, etc. This is a normal operating condition.
Do not place anything directly
on the bottom of the oven cavity.



1. Thoroughly preheat the oven for approximately
20 minutes before use.
2. As a general rule, the cooking temperature can be set
lower than the temperature used in a conventional
oven. Cooking time may also be shorter. It is
suggested the first batch of each product prepared be
monitored closely to check for variances.
3. Maintain a record of the temperatures, times, and
load capacities established for products cooked on a
regular basis since they will be the same or similar for
succeeding loads.
4. When practical, start cooking the lowest temperature
products first and gradually work up to products with
a higher cooking temperature.
5. If the cooking temperature setting for the previous
product is more than 10°F (5°C to 6°C) higher
than the temperature needed for the next load,
use the FAN COOL-DOWN feature to decrease
the oven temperature before setting the oven to a
lower temperature.
6. Work as quickly as possible when loading the
oven to prevent heat loss.
7. When the audible signal indicates the time has
expired, remove the food product from the oven
as quickly as possible to avoid over cooking.
8. Pans should be centered between side racks and each
shelf should be loaded evenly to allow proper air
circulation within the oven compartment.
9. To assure even cooking when baking, weigh or
measure the product in each pan.
10. ASC-2E: When cooking five pans of product,
start from the bottom of the oven and use side
rack positions 1, 3, 5, 7, and 9.
ASC-4E: When cooking six pans of product,
start from the bottom of the oven and use side
rack positions 2, 4, 6, 8, 10, and 12.
11. Do not overload the oven. Refer to product/pan
capacties indicated in this manual.
12. To obtain an evenly baked product, muffin pans
should be placed in the oven with the short side of
each pan facing the front of the oven.
13. When rethermalizing frozen casseroles, preheat the
oven 100°F (38°C) over the suggested temperature to
compensate for the introduction of a large quantity of
frozen product into the oven compartment. Reset the
thermostat to the correct cooking temperature after the
oven is loaded.
14. Use a pan extender or two inch (51mm) deep,
18" x 26" pans for batter-type products that weigh
more than 8 pounds (3 to 4 kg), i.e.; pineapple upside-
down cake.
15. To avoid obstructing airflow that would result in
uneven cooking, never place anything directly on the
bottom of the oven cavity.
Cooking Guidelines
Food Temperature Time
 Food Temperature Time 
Cakes, Sheet 325°F 163°C 25 Macaroni & Cheese
(frozen, full oven) 350°F 177°C 90
Chicken pieces (30 breasts
& thighs, 25 legs & wings) 400°F 204°C 25 Macaroni & Cheese (refrigerated) 350°F 177°C 30
Chicken halves 400°F 204°C 40 Muffins 325°F 163°C 13-15
Beef patties 400°F 204°C 8 Pies, Frozen 325°F 163°C 40
Bacon 350°F 177°C 16 Pizzas, Individual 325°F 163°C 15
Fish, frozen (5 oz.) 350°F 177°C 15 Potatoes, Baked 350°F 177°C 50
Macaroni & Cheese
(frozen, 1 pan) 350°F 177°C 50 Sandwiches, Grilled Cheese 400°F 204°C 4-6
Tater tots 450°F 232°C 10

CARE AND CLEANING
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 17
PROTECTING STAINLESS STEEL SURFACES
It is important to guard against corrosion
in the care of stainless steel
surfaces. Harsh, corrosive,
or inappropriate chemicals
can completely destroy the
protective surface layer
of stainless steel. Abrasive
pads, steel wool, or metal implements will abrade
surfaces causing damage to this protective coating
and will eventually result in areas of corrosion.
Even water, particularly hard water that contains
high to moderate concentrations of chloride, will
cause oxidation and pitting that result in rust
and corrosion. In addition, many acidic foods
spilled and left to remain on metal surfaces are
contributing factors that will corrode surfaces.
Proper cleaning agents, materials, and
methods are vital to maintaining the appearance
and life of this appliance. Spilled foods should be
removed and the area wiped as soon as possible
but at the very least, a minimum of once a day.
Always thoroughly rinse surfaces after using a
cleaning agent and wipe standing water as quickly
as possible after rinsing.
CLEANING AGENTS
Use non-abrasive cleaning products designed for
use on stainless steel surfaces. Cleaning agents
must be chloride-free compounds and must not
contain quaternary salts. Never use hydrochloric
acid (muriatic acid) on stainless steel surfaces.
Always use the proper cleaning agent at the
manufacturer's recommended strength.
Contact your local cleaning supplier for
product recommendations.

The cleaning function can usually be accomplished
with the proper cleaning agent and a soft, clean
cloth. When more aggressive methods must be
employed, use a non-abrasive scouring pad on
difficult areas and make certain to scrub with the
visible grain of surface metal to avoid surface
scratches. Never use wire brushes, metal scouring
pads, or scrapers to remove food residue.

CAUTION
TO PROTECT STAINLESS STEEL
SURFACES, COMPLETELY AVOID
THE USE OF ABRASIVE CLEANING
COMPOUNDS, CHLORIDE BASED
CLEANERS, OR CLEANERS
CONTAINING QUATERNARY SALTS.
NEVER USE HYDROCHLORIC ACID
(MURIATIC ACID) ON STAINLESS
STEEL. NEVER USE WIRE
BRUSHES, METAL SCOURING
PADS OR SCRAPERS.
N
O
W
I
R
E
B
R
U
S
H
E
S
N
O
S
T
E
E
L
P
A
D
S
N
O
S
C
R
A
P
E
R
S

CARE AND CLEANING
ASC-2E & ASC-4E Electric Convection Ovens - Electronic Control • 18

1. After the oven has cooled, remove all detachable
items such as wire shelves, side racks, and drip
pan. Clean these items separately.
2. Remove any food scraps from shelves, shelf
supports, and blower fan wheel. Convection
baffle openings must be kept clear of food
scraps and grease.
3. Wipe the interior metal surfaces of the oven
with a paper towel to remove any remaining
food debris.
4. Clean interior with a damp cloth or sponge
and any good commercial detergent at the
recommended strength.
5. For baked-on food deposits, use a non-caustic
and non-toxic commercial oven cleaner
appropriate for the interior oven surface of
your oven. Follow the product manufacturer's
instructions carefully for the use of this
product. Any commercial oven cleaner
must be approved for use on food contact
areas. Remove soil with the use of a plastic
scouring pad.
6. Wipe door gaskets thoroughly
since these areas harbor food
debris and grease.
7. Rinse surfaces by wiping with
a clean cloth or sponge and clean
warm water.
8. Remove excess water with a sponge
and wipe dry with a clean cloth or air dry.
Leave doors open until interior is completely
dry. Replace side racks and shelves.
Always follow appropriate state or local health
(hygiene) regulations regarding all applicable
cleaning and sanitation requirements for food
service equipment.
EXTERIOR
To help maintain the protective film coating on
polished stainless steel, clean the exterior of the
cabinet with a cleaner recommended for stainless
steel surfaces. Spray the cleaning agent on a clean
cloth and wipe with the grain of the stainless steel.
Wipe control panel, door vents and door handles,
thoroughly since these areas harbor food debris.
Clean exterior glass surfaces with a commercial
window cleaner.

OTOR CARE
The convection oven motor contains self-
lubricating, sealed ball bearings and is
generally maintenance-free. During operation,
the interior of the motor is cooled by air flowing
into the rear of the motor case. This is a general
operating feature when proper clearances have
been allowed.


The oven is fabricated with an easy to clean porcelain
enamel interior or an optional stainless steel interior.
NOTE: Always allow the oven to cool before
cleaning. If the oven is hot, allow the
interior surfaces to become cool to the
touch by opening the oven doors and
engaging the cool-down function.

Completely avoid the use of abrasive cleaning
compounds, chloride-based cleaners, or cleaners
containing quaternary salts. To protect metal
finish on stainless steel, never use hydrochloric
acid (muriatic acid).
DANGER

POWER SOURCE BEFORE
CLEANING OR SERVICING.
DANGER
AT NO TIME SHOULD THE INTERIOR
OR EXTERIOR BE STEAM CLEANED,
HOSED DOWN, OR FLOODED WITH
WATER OR LIQUID SOLUTION OF
ANY KIND. DO NOT USE WATER JET
TO CLEAN.


COULD RESULT.
WARRANTY BECOMES VOID IF
APPLIANCE IS FLOODED