Alto-Shaam AS-250 User Manual
#812 • 12/2005
PRINTED IN U. S .A .
INSTALLATION
OPERATION
AND
MAINTENANCE
MANUAL
Oven
Low Temperature
Cooking and Holding
Electronic
MODEL:
AS-250
A
B
C
D
E
F
AS-250AS-250
W164 N9221 Water Street • P.O. Box 450 • Menomonee Falls, Wisconsin 53052-0450 USA
PHONE: 262.251.3800 • 800.558-8744 USA/CANADA Fax: 262.251.7067 • 800.329.8744 USA/CANADA
WEB SITE: www.alto-shaam.com
#812 • INSTALLATION/OPERATION/SERVICE MANUAL • INDEX
Installation
Unpacking and Setup . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Heating Characteristics . . . . . . . . . . . . . . . . . . . . . . . . 1
Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Electrical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Outside Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Options & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 2
Control
Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Audible Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Operating Features & Functions . . . . . . . . . . . . . . . . . . . 4
Control Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
General Holding Guidelines . . . . . . . . . . . . . . . . . . . . . . 9
Care and Cleaning
Cleaning and Preventive Maintenance . . . . . . . . . . . . . . 10
Clean the Oven Daily . . . . . . . . . . . . . . . . . . . . . . . . . 11
Clean the Door Vents . . . . . . . . . . . . . . . . . . . . . . . . . 11
Do Not Use Oven if Controls are not Properly Functioning . . 11
Check Overall Condition . . . . . . . . . . . . . . . . . . . . . . . 11
Sanitation Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . 12
Service
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Troubleshooting Internal Electrical Components . . . . . . . 14
Service View Parts List . . . . . . . . . . . . . . . . . . . . . . . . 15
Service View . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Transportation Damage and Claims
Warranty
INDEX
#812 • INSTALLATION/OPERATION/SERVICE MANUAL • 1
The Alto-Shaam Electronic Cooking
and Holding Oven has been thoroughly
tested, checked for calibration and
inspected to insure only the highest quality
oven is provided. When you receive your
oven, 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.
The oven may be delivered in one or
more packages. Check to insure that all the following
items have been received with each unit:
Drip Pan (1) Guide to Low Temperature Cooking(1)
Wire Shelf (1) Oven Side Racks (2) Base Support Bars (1)
PLUS: Any options or accessories which may have been ordered
with the equipment.
Save all the information and instructions packed
inside the unit. Complete and return the warranty card
to the factory as soon as possible to insure prompt
service in the event of a warranty parts/labor claim.
Alto-Shaam cook and hold ovens are designed for the
purpose of maintaining hot food at a temperature for
safe consumption. The unit must be installed in a
location that will permit the equipment to function for its
intended purpose and allow adequate access for proper
cleaning and maintenance.
Installation minimum clearance recommendations are
3-inches (76mm) at the back, 2-inches (51mm) at the top,
and 1-inch (25mm) at both sides
The unit must not be installed in any area where it
will be affected by steam, grease, dripping water, high
temperatures, or any other severely adverse conditions.
The oven is equipped with a special, high-heatdensity, heating cable. Through the Halo Heat concept,
the heating cable is mounted against the walls of the
cooking cavity to provide an evenly applied,
thermostatically controlled, heat input. The design and
operational characteristics of the unit eliminate the need
for a moisture pan and/or heat circulating fan. Because
of the even heat application, the quality of a food
product is maintained for long periods of time. The
actual time depends on the type and quantity of product.
The computer control maintains an exceptionally
close temperature tolerance and automatic control of the
cooking cycle by either internal product temperature or
timed cooking. Holding temperatures are maintained
with reduced oven power consumption in the automatic,
HOLD mode.
Before using the oven, become familiar with the
operation of the control. Read the following "Operation"
section of this manual and operate the various function
modes of the computer control. For reference during
actual operation, the basic operational procedures are
printed on the control panel.
Clean both the interior and exterior of the oven
with a mild soap solution and a damp cloth rinse
before operating.
1. Ensure that the voltage stamped on the nameplate
matches the available power source.
SAMPLE
2. This unit must be grounded in accordance with
requirements of the National Electrical Code or
applicable local codes.
125 V.A.C. — 60 Hz, 1Ph • 1300 Watts • 10.4 Amps
230 V.A.C. — 50/60 Hz, 1 Ph • 1200 Watts (max.)
• 5.5 Amps (max.)
3. If necessary a proper outlet configuration, or
permanent wiring for this oven must be installed by
a licensed electrician in accordance with applicable,
local electrical codes.
4. Plug the unit into a properly grounded receptacle
only, positioning the appliance so that the
power supply cord is easily accessible in case of
an emergency.
For 230V units:
To prevent an electrical shock hazard
between the appliance and other appliances or metal
parts in close vicinity, an equalization-bonding stud is
provided. An equalization bonding lead must be
connected to this stud and the other appliances / metal
parts to provide sufficient protection against
potential difference. The terminal is marked with the
following symbol.
HEATING CHARACTERISTICS
®
®
ELECTRICAL INSTALLATION
UNPACKING and SET-UP
START UP
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.
SEVERE DAMAGE OR ELECTRICAL
HAZARD COULD RESULT.
WARRANTY BECOMES VOID IF
APPLIANCE IS FLOODED.
#812 • INSTALLATION/OPERATION/SERVICE MANUAL • 2
33-9/16" (853mm)
5-1/2" (140mm)
17-1/4" (438mm)
16-3/4" (425mm)
40-1/8" (1019mm)
Electrical
Connection
7" (178mm)
from top
A
B
C
D
E
F
INSTALLATION
OPTIONS AND ACCESSORIES
OUTSIDE DIMENSIONS
Shelf, Stainless Steel Wire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .SH-2786
Stacking Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4928
Carving Holder, Prime Rib . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .HL-2635
#812 • INSTALLATION/OPERATION/SERVICE MANUAL • 3
A
B
C
D
E
F
AS-250AS-250
START BUTTON
After all required
settings have been entered,
START begins the cooking-
holding sequence.
PROBE BUTTON
Used for setting probe cut-off
temperature or recalling and
checking previously set probe
cut-off temperature.
POWER ON BUTTON
Used to start control set-up
sequence from the
reset mode.
HOLD BUTTON
Used for setting HOLD
temperature or recalling and
checking previously set
holding temperature.
CONTROL PANEL • AS-250
CONTROL OPERATION
PRESETS PROGRAM KEYS
Provides memory storage
and operation of operator
set cooking programs for
specific products.
PROGRAM MENU
IDENTIFICATION
CARD SLOT
LOCK INDICATOR
When illuminated, this symbol
indicates settings used in the
cooking sequence are locked
and cannot be changed.
PRE-HEAT INDICATOR
Illuminates until the oven is
preheated.
COOK INDICATOR
Illuminates when oven
is cooking.
READY INDICATOR
Illuminates when the oven has
finished preheating.
PRE-SET PROGRAM
CANCEL BUTTON
Used to erase a program from
memory storage
PRESET LOCK
Enables locking abilities.
DIGITAL DISPLAY
Indicates appropriate time or
temperature and displays
control in °F or °C mode.
COOK BUTTON
Used for setting COOK
temperature or recalling and
checking previously set
cooking temperature.
TIME BUTTON
Used for setting cooking time
or recalling and checking
previously set time.
(3 digits - Minimum)
UP/DOWN ARROWS
Used to increase or decrease
set time, including cooking,
holding and probe
temperature settings.
MINUTES INDICATOR
Illuminates when minutes are
displayed on the
Digital Display.
#812 • INSTALLATION/OPERATION/SERVICE MANUAL • 4
CONTROL OPERATION
OVEN BEEPING is used to indicate a YES or NO response to operator input.
Beeps also indicate mode C
HANGES and ERROR conditions.
One brief beep indicates a YES (enabled) response to the information entered into the control.
Two brief beeps indicate a NO (disabled) response to the information entered into the control.
A beep that lasts for one second indicates an oven mode TRANSITION. Example: Preheat to Ready-Start.
Three brief beeps indicate the oven is in the READY mode for product loading and START-UP.
Four brief beeps indicate an existing FAULT condition. Refer to the Trouble Shooting section of this manual.
Beeper volume can be changed. With the control in the O
FF mode, press and hold the DOWN ARROW Key. After 4 seconds,
the display will exhibit one of the 4 volume levels (0 being O
FF or the lowest, and 3 being the highest). After each change, the
button must be released and the display must clear before the procedure can be repeated to select a different volume level.
AUDIBLE SIGNALS
Turn the Oven Control Panel Off:
Press and hold the ON/OFF Key for three seconds. Oven will
beep. The O
N/OFF indicator light will go out.
Stop an Operation:
Press and hold the START Key for several seconds until the
control beeps, indicating the operation has been cancelled.
The oven will remain in a power-on state.
Arrow Keys:
Cook, Hold and Probe Temperature
set points can be
adjusted by 1° when pressing the A
RROW Keys. To change a
set point more rapidly,
press and hold the ARROW Key along
with the key for the temperature function, and the
temperature changes in steps of 10°F or 5°C.
The
Time setting is adjusted in increments of one minute by
pressing the A
RROW Keys. To make adjustment in steps of
ten minutes,
press and hold the TIME Key and ARROW Key at
the same time.
Probe Usage:
When the probe is left 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.
SPECIAL ATTENTION:
When preheating, the temperature of the product probe
reaches the air temperature inside the oven. Always
allow the product probe temperature to decrease to the
internal temperature of the raw product by inserting the
probe and waiting one full minute before pressing the
start button. A false reading of the internal temperature
of the product may cause the oven to default to a
holding temperature.
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.
Display High/Low Probe Temperatures:
To observe the recorded maximum or minimum probe
temperature during a cooking program press the
following keys:
Highest Temperature: Press PROBE Key and UP ARROW
Key at same time.
Lowest Temperature: Press PROBE Key and DOWN
ARROW Key at same time.
Halo Heat Indicator:
When the oven is preheating the Halo Heat indicator
light will remain illuminated until it reaches the set
cook temperature. Once the temperature has stabilized,
this indicator will illuminate periodically as the oven
calls for heat.
Green and Amber Indicators:
Each program key includes a green light which indicates
a requirement for additional programming by the
operator or the current operational state of the oven.
The C
OOK, TIME, PROBE, and HOLD keys include an amber
indicator light to identify the information being displayed.
Amber
OPERATING FEATURES & FUNCTIONS
Green
#812 • INSTALLATION/OPERATION/SERVICE MANUAL • 5
CONTROL OPERATION
Cook by Time: IS THE MAIN ELECTRICAL POWER SWITCH ON?
Press and release control ON/OFF key.
• The green indicator light on the ON/OFF key will illuminate.
• The oven will beep for one second.
• The oven will begin operating in the hold mode.
• The amber hold indicator will illuminate.
• The previously set hold temperature will be displayed.
Press the HOLD Key.
➥To change the hold temperature, press the UP or DOWN ARROW Keys.
Note: If the oven is being used for hot food holding only, adjust the
set holding temperature. Do not press the COOK, TIME, or PROBE Keys.
Press COOK Key to preheat.
• The green indicator light on the COOK Key will illuminate.
• Last set cooking temperature will be displayed.
➥To change the cook temperature, press the UP or DOWN ARROW Keys.
• The green indicator light on the TIME Key and on the PROBE Key alternately flash.
Press TIME Key.
• The green indicator light on the TIME Key will illuminate.
• Last set time is displayed.
➥To change the cook time, press the UP or DOWN ARROW Keys.
• The green indicator light on the TIME Key will illuminate.
• Halo Heat and Pre-Heat indicator will illuminate.
➥The oven is automatically programmed to preheat to the cook
temperature.
• The oven will beep when preheated and the preheat indicator light will go out.
• Both the Ready and Start indicator lights will flash.
➥ The set cook temperature will be maintained by the oven and appear in the display
while in the ready/start mode.
Load the food inside oven and close the oven door.
Note: The oven will beep 3 times every 25 seconds until the oven is loaded and the START
Key pressed.
Press and release START key.
COOK
• The oven will beep.
• The green indicators for power, cook, time, and start will illuminate.
• The display will alternate between showing the set cook temperature and the remaining time.
HOLD
• The oven will beep at the end of the timed cooking cycle.
• The green indicator for cook will remain illuminated.
• The display will alternate between showing the set hold temperature and the amount of
time the product has remained in the holding mode.
• The Ready indicator light will illuminate after 2 hours in the hold mode.
Note: The ready indicator does not necessarily indicate a product-ready state. For best
results, the product must remain in the oven at the set holding temperature for the
minimum number of hours indicated in the individual cooking instructions.
• The oven will remain operating in the hold mode until the control ON/OFF Key is pressed.
HELPFUL HINT
To avoid prolonged
preheat times between
loads, leave the
oven in the
hold mode.
Cold food for
rethermalization or
reheating must never
be added to the
oven while hot food is
being held.
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