Page 1
READY
Miracle Steamer
Model MS-250/255
owner’s manual
Manufacturing Numbers:
9100430, 9100435, 9100436, 9100437, 9100438,
9100440, 9100460, 9100462, 9100466, 9100468,
& 9100933
Original Instructions
www.antunes.com
P/N 1010455 Rev. H 04/17
Page 2
CONTENTS
General 2
Warranty
Information 2
Service/Technical
Assistance 2
Important Safety
Information 3
Warnings 3
Specications 4
Dimensions 4
Electrical Ratings 4
Installation 5
Unpacking 5
Equipment Setup 5
Electrical 6
Plumbing 6
Operation 7
Programming 7
Hi-Limit Reset Button 8
Status Indicator LEDs 8
Fault Codes 8
Maintenance 9
Daily 9
Monthly 10
Troubleshooting 12
Replacement Parts 14
Wiring Diagram 18
Notes 19
IMPORTANT
A.J. Antunes & Co. reserves the right to
change specications and product de-
sign without notice. Such revisions do not
entitle the buyer to corresponding changes,
improvements, additions or replacements
for previously purchased equipment.
GENERAL
This manual provides the safety, installation,
and operating procedures for your toaster.
Please read all of the information contained
in this manual prior to installing and operating the toaster.
This product is manufactured from the nest materials available and is assembled to
our strict quality standards. This toaster was
tested at the factory to ensure dependable
trouble-free operation.
WARRANTY
INFORMATION
Please read the full text of the Limited
Warranty in this manual.
If the unit arrives damaged, contact the
carrier immediately and le a damage claim
with them. Save all packing materials when
ling a claim. Freight damage claims are the
responsibility of the purchaser and are not
covered under warranty.
The warranty does not extend to:
y Damages caused in shipment or
damage as result of improper use.
y Installation of electrical service.
y Normal maintenance as
outlined in this manual.
y Malfunction resulting from
improper maintenance.
y Damage caused by abuse
or careless handling.
y Damage from moisture into
electrical components.
y Damage from tampering with,
removal of, or changing any
preset control or safety device.
SERVICE/TECHNICAL
ASSISTANCE
If you experience any problems with the installation or operation of your unit, contact
Antunes Technical Service at +1-877-3927854 (toll free).
Fill in the information in the next column and have it handy when calling for
assistance. The serial number is on the
specication plate located on the system.
Purchased From
Date of Purchase
Model Number
Serial Number
Mfg. Number
Use only genuine Antunes replacement
parts in this unit. Use of replacement parts
other than those supplied by the manufacturer will void the warranty.
IMPORTANT
Keep these instructions for future refer-
ence. If the unit changes ownership, be sure
this manual accompanies the equipment.
P/N 1010455 Rev. H 04/172
Page 3
IMPORTANT SAFETY
INFORMATION
Use the following guidelines for safe operation of the unit.
y Read all instructions before
using equipment.
y For your safety, the equipment is
furnished with a properly grounded
cord connector. Do not attempt to
defeat the grounded connector.
y Install or locate the equipment only
for its intended use as described in
this manual. Do not use corrosive
chemicals in this equipment.
y 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.
y This equipment should be
serviced by qualied personnel
only. Contact Antunes Technical
Service for adjustment or repair.
y Do not block or cover any
openings on the unit.
y Do not immerse cord or plug in water.
y Keep cord away from heated surfaces.
y Do not allow cord to hang over
edge of table or counter.
y Turn the power o, unplug the
power cord, and allow unit to cool
down before performing any service
or maintenance on the unit.
y The equipment should be grounded
according to local electrical codes to
prevent the possibility of electrical
shock. It requires a grounded
receptacle with separate electrical
lines, protected by fuses or circuit
breaker of the proper rating.
y All electrical connections must be in
accordance with local electrical codes
and any other applicable codes.
y Do not clean this appliance
with a water jet.
y This appliance is not to be used by
persons (including children) with
reduced physical, sensory, or mental
capabilities, or lack of experience and
knowledge unless they have been
given supervision or instructions.
y Do not allow children to
play with the appliance.
WARNINGS
Be advised of the following warnings when
operating and performing maintenance on
this unit.
y If the supply cord is damaged,
it must be replaced by the
manufacturer or its service agent
or a similarly qualied person
in order to avoid a hazard.
y Do not modify the power supply
cord plug. if it does not t the
outlet, have a proper outlet
installed by a qualied electrician.
y Do not use an extension
cord with this appliance.
y Electrical ground is required
on this appliance.
y Check with a qualied electrician
if you are unsure if the appliance
is properly grounded.
y If a chemical cleaner is used,
be sure it is safe to use on cast
aluminum. Observe all precautions
and warnings on product label.
y Inspection, testing, and
repair of electrical equipment
should only be performed by
qualied service personnel.
y This equipment is to be installed to
comply with the basic plumbing code
of the Building Ocials and Code
Administrators, Inc. (BOCA) and the
Food Service Sanitation Manual of the
Food and Drug Administration (FDA).
y Do not use abrasive materials. The
use of these may cause damage
to the stainless steel nish.
y Chlorides or phosphates in cleaning
agents (e.g. bleach, sanitizers,
degreasers or detergents) could cause
permanent damage to stainless steel
equipment. The damage is usually in
the form of discoloration, dulling of
metal surface nish, pits, voids, holes,
or cracks. This damage is permanent
and not covered by warranty.
y To ensure proper steaming
characteristics, some calcium/
mineral deposits must be present
on the Generator surface. If, during
cleaning, the surface does become
free of calcium/mineral deposits, one
approved method is to add plain
tap water to the surface and allow
it to boil o. This will ensure proper
steaming characteristics by creating a
thin layer of deposits on the surface.
The following tips are recommended
for maintenance of your stainless steel
equipment:
y Always use soft, damp cloth for
cleaning, rinse with clear water and
wipe dry. When required, always rub
in direction of metal polish lines.
y Routine cleaning should be
done daily with soap, ammonia
detergent, and water.
y Stains and spots should be sponged
using a vinegar solution.
y Finger marks and smears should be
rubbed o using soap and water.
y Hard water spots should be
removed using a vinegar solution.
CAUTION
ELECTRICAL SHOCK HAZARD. Failure
to follow the instructions in this manual
could result in serious injury or death.
y Electrical ground is required
on this appliance.
y Do NOT modify the power supply
cord plug. If it does not t the
outlet, have a proper outlet installed
by a qualied electrician.
y Do NOT use an extension
cord with this unit.
y The unit should be grounded
according to local electrical codes to
prevent the possibility of electrical
shock. It requires a grounded
receptacle with separate electrical
lines, protected by fuses or circuit
breaker of the proper rating.
y Check with a qualied electrician
if you are unsure if the appliance
is properly grounded.
CAUTION
Be sure to follow all safeguards and
precautions in the Important Safety
Instructions section of this manual.
CAUTION
All electrical connections must be in
accordance with local electrical codes
and any other applicable codes.
CAUTION
This equipment is to be installed to
comply with the basic plumbing code
of the Building Ocials and Code Ad-
ministrators, Inc. (BOCA) and the Food
Service Sanitation Manual of the Food
and Drug Administration (FDA).
P/N 1010455 Rev. H 04/17 3
Page 4
SPECIFICATIONS
Dimensions
9-1/2”
(234 MM)
Electrical Ratings
Model &
Mfg. No.
MS-250
9100430
MS-250
9100431
Saudi Arabia
MS-250
9100435
MS-250
9100436
MS-250
9100437
MS-250
9100438
MS-250
9100440
MS-250
9100444
MS-255
9100460
MS-250
9100441
Saudi Arabia
MS-255
9100462
MS-255
9100466
MS-255
9100467
Saudi Arabia
MS-255
9100468
MS-255
9100933
Volts Watts Amps Hertz
208 3300 15.9 50/60
230 3300 14.35 50/60
208 3300 15.9 50/60
230 3300 14.4 50/60
230 3300 14.4 50/60
230 3300 14.4 50/60 CEE 7/7, 16 Amp., 250 Volt
230 3300 14.4 50/60 CEE 7/7, 16 Amp., 250 Volt
230 3300 14.4 50/60
230 1000 4.4 50/60
230 3300 14.35 50/60
120 1000 8.3 50/60
240 1000 4.2 50
230 3300 14.35 50/60
120 1000 8.3 50/60 CEE 7/7, 16 Amp., 250 Volt
208 3300 15.9 50/60
17-1/8”
(435 MM)
Plug
Description
6-20P, 20 Amp., 250 VAC,
Non Locking
IEC-309
16 Amp., 250 VAC
Pin & Sleeve
(Assembly Only)
6-20P, 20 Amp., 250 VAC,
Non Locking
6-20P, 20 Amp., 250 VAC,
Non Locking
6-20P, 20 Amp., 250 VAC,
Non Locking
AS3112
Australian Plug
20 Amp., 250 VAC.
6-20P, 20 Amp., 250 VAC,
Non Locking
IEC-309
16 Amp., 250 VAC
Pin & Sleeve
(Assembly Only)
NEMA 5-15P, 15 Amp., 120
Volt
6-20P, 20 Amp., 250 VAC,
Non Locking
IEC-309
16 Amp., 250 VAC
Pin & Sleeve
(Assembly Only)
6-20P, 20 Amp., 250 VAC,
Non Locking
20-3/4”
(527 MM)
P/N 1010455 Rev. H 04/174
Page 5
INSTALLATION
Unpacking
1. Remove the unit and all packing
materials from the shipping carton.
2. The unit should come with the items
listed below:
• Owner’s Manual
• Inlet Hose Assembly
• Spatula Assembly (MS-250 only)
• Drawer Assembly (MS-255 only)
NOTE: If any parts are missing or dam-
aged, contact Antunes Customer
Service IMMEDIATELY at +1-877392-7856 (toll free)
3. Remove all packing materials and
protective
coverings from the unit.
4. MS-250: Remove and wash the Wire
Trivet, Spatula, Spatula Liner, and
Drip Pan (Figure 1) in soap and water.
Rinse with clean hot water and allow
to air dry.
5. MS-255: Remove and wash the
Drawer, Drawer Liner with Rollers,
and Drip Pan (Figure 2) in soap and
water. Rinse with clean hot water
and allow to air dry.
NOTE: MFG. No. 9100933 does not use
the Drip Pan or Steam Vent.
6. Wipe all surfaces of the unit with a
hot, damp cloth.
NOTE: Do NOT use a dripping wet cloth.
Wring out before use.
7. MS-250 Models: Assemble the
Guard and Mounting Bolt to the
Spatula (Figure 3). Then install the
Wire Trivet into the side slots on the
Spatula.
8. Re-install all removed parts.
Equipment Setup
When placing the unit into service, pay attention to the following guidelines:
y Make sure power is o and the
unit is at room temperature.
y Do NOT block or cover any
openings on the unit.
y Do NOT immerse cord
or plug in water.
y Keep cord away from heated surfaces.
y Do NOT allow cord to hang over
edge of table or counter.
Wire Trivet
Spatula
Drip Pan
(Except Mfg. No.
9100933)
Bolt
Handle
Figure 3. Assembling Handle–MS-250 Only
Drip Pan
Spatula Liner
Figure 1. Washing Parts–MS-250 Only
Drawer
Drawer Liner
with Rollers
Figure 2. Washing Parts–MS-255 Only
Wire Trivet
Spatula
Handle Guard
P/N 1010455 Rev. H 04/17 5
Page 6
Electrical
1. Place the unit on a sturdy, level table
or other work surface.
2. Ensure that the line voltage corresponds to the stated voltage on the
units specication label and power
cord warning tag. If you are unsure
of your Line Voltage, contact an
electrician.
3. Connect the unit to the power
supply.
WARNING WARNING
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
120 VAC
ONLY
WARNING WARNING
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
208 VAC
ONLY
WARNING WARNING
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
220-240
VAC ONLY
Cold
Water
Flow
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS UNIT IS DESIGNED TO
OPERATE ON 120 VOLTS
ONLY. APPLICATION WITH ANY
OTHER VOLTAGE SUPPLY
COMPLETELY VOIDS ALL
WARRANTY. PLEASE CHECK
YOUR LINE VOLTAGE BEFORE
INSERTING THIS PLUG INTO THE
RECEPTACLE.
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS UNIT IS DESIGNED TO
OPERATE ON 208 VOLTS
ONLY. APPLICATION WITH ANY
OTHER VOLTAGE SUPPLY
COMPLETELY VOIDS ALL
WARRANTY. PLEASE CHECK
YOUR LINE VOLTAGE BEFORE
INSERTING THIS PLUG INTO THE
RECEPTACLE.
THIS APPLIANCE MUST BE
EARTHED (GROUNDED)
THIS UNIT IS DESIGNED TO
OPERATE ON 220-240 VOLTS
ONLY. APPLICATION WITH ANY
OTHER VOLTAGE SUPPLY
COMPLETELY VOIDS ALL
WARRANTY. PLEASE CHECK
YOUR LINE VOLTAGE BEFORE
INSERTING THIS PLUG INTO THE
RECEPTACLE.
Flexible Nylon Braided
1/4 " I.D. Tubing (Not Supplied)
Shut Off Valve
(Not Supplied)
Plumbing
NOTE: Miracle Steamer models are
designed to use cold tap water.
Distilled water may be used to
reduce calcium/mineral deposit
buildup and reduce maintenance
costs.
These units require a direct cold water
hookup. A Water Inlet Hose and Strainer
Assembly (Figure 4) is supplied.
NOTE:
Incoming water is controlled by
a normally closed (NC) solenoid valve located inside the
Steamer’s electrical housing.
1. Turn o the water valve (not sup-
plied) that supplies water to the unit
(Figure 4).
2. Connect the 1/4” (6.5 mm) I.D.
Flexible Tubing to the outlet side
of the Water Pressure Regulator
and secure using the Worm Clamp
(Figure 4).
NOTE:
A Water Pressure Regulator
must rst be installed (Figure 4).
Failure to do so will result in poor
steaming and possible ooding.
For a single steamer, use Water
Pressure Regulator P/N 7000314.
For two adjacent steamers, use
Water Pressure Regulator P/N
7000235. For Mfg. No. 9100933
use only P/N 0012001.
Connect Quick
Disconnect
Insert Here
Quick
Disconnect
Insert
Worm
Clamp
3. Turn the water valve on.
4. Hold the Quick Disconnect Insert
over a bucket, then press and hold
the white plastic tip until there’s a
good, steady water ow. This will
purge all air out of the line.
5. Release the plastic tip and check
the pressure on the Water Pressure
Regulator. It should read
20 psi.
a. If it reads less, increase the water
pressure by pulling the black knob
up and turning it clockwise.
b. If it reads more, decrease the
water pressure by pulling the
black knob up and turning it
counter clockwise.
NOTE:
When adjusting the knob, relieve
the existing pressure by pressing the plastic tip on the Quick
Disconnect Insert for 3 seconds.
The Water Pressure Regulator will
then show the new pressure.
6. Once the regulator reads 20 psi,
push the black knob down to lock it
in place.
7. Push the Quick Disconnect Insert
into the tting at the rear of the unit
until it clicks (Figure 4).
Optional Water Pressure Regulator
with Strainer (P/N 7000314 shown)
CAUTION
Water pressure must not exceed 30 psi
(2.1 kg/cm2 or 207 kPa). Higher pressure
may cause poor performance or ooding. To reduce water pressure, install a
Water Pressure Regulator, and set to 20–25
psi (1.4–1.7 kg/cm2 or 138–172 kPa).
NOTE: The use of only one strainer is
acceptable instead of two.
Inlet Hose & Strainer
Assy. (Supplied)
Figure 4. Connecting Water Supply
CAUTION
This equipment is to be installed to
comply with the basic plumbing code
of the Building Ocials and Code Ad-
ministrators, Inc. (BOCA) and the Food
Service Sanitation Manual of the Food
and Drug Administration (FDA).
P/N 1010455 Rev. H 04/176
Page 7
OPERATION
UP DOWN PRGM
START/STOP
POWER
READY
NOTE: Do NOT push any button during
Programming
CYC (Total Cycle Time) refers to the
total programmed steam time set for the
product.
SHO (Shot Interval Time) refers to the time
set between shots of steam during a complete cycle.
H2O (Steam Shot Time) refers to the water
volume consumed during each water pump
activation.
The amount of steam produced by your
Miracle Steamer depends on the amount of
water sprayed onto the steam generator.
Flooding of the generator may occur if the
H2O setting is too high. To prevent ooding, the Shot Interval Time (SHO) can be
increased to allow more time for generator
heat recovery. Adjustments should be made
to both values to determine the best settings for your cooking needs.
To program the control, refer to Figure 6 and
follow the procedure below:
1. 1. Turn the power on and allow the
unit to preheat for approximately
20–30 minutes.
warmup time. The ashing green
Ready Light indicates that the
unit is not warmed up. The green
Ready Light will become steady
when the unit is warmed up.
2. Pull out the Spatula or Drawer
Assembly and set the product to be
steamed onto the Spatula.
3. Push the Spatula or Drawer
Assembly fully into the steamer.
4. Single Shot: Press and release the
Operate
button, then wait 20 seconds for the
steam to penetrate the product.
Timed Cycle: Press the Start/Stop
button to begin the steaming cycle.
The display will count down to zero
and an audio signal will sound at the
end of the steaming cycle.
5. Remove steamed product.
1. Turn the unit on. The unit displays
the factory programmed Total Cycle
Time in minutes and seconds (Figure
6, Item A).
2. Press and release to change
the control from OPERATION to
PROGRAM mode.
READY LIGHT
MESSAGE
DISPLAY
START/STOP
BUTTON
OPERATE BUTTON
POWER
SWITCH
Figure 5. Operating Controls
3. To change the Total Cycle Time in
minutes, press ▲ or ▼ to change
the time (Figure 6, Item B).
4. Press and release again, and
press▲ or ▼ to change the Total
Cycle Time in seconds (Figure 6, Item
C).
5. To change the SHO factory settings,
make sure the control is in PROGRAM
mode, then press and hold both
▲ and ▼ simultaneously for 1-2
seconds and release. SHO will be
displayed (Figure 6, Item D).
6. Press and release and then press
▲ or ▼ to change the SHO in seconds (Figure 6, Item E).
7. Press and release again and
press ▲ or ▼ to change the SHO in
minutes (Figure 6, Item F).
8. Press and release again and
“H2O” will be
displayed (Figure 6, Item G).
9. To change the H2O (Steam Shot
time), press and release the Program
button again to display the setting
(Figure 6, Item H). Use▲ or ▼ to
increase or decrease the time.
10. Press the Start/Stop or Operate buttons to store the changes, exit the
PROGRAM Mode, and initiate the
cooking cycle.
WARNING
To avoid injury, be careful when pulling
the Spatula or Drawer out from unit. Be
sure to allow steam to escape before put-
ting hands or face over the steamer.
NOTE: 208V and 220/240V Miracle
Steamers are factory programmed for the following
recommended settings:
• Total Cycle Time (CYC) = 15 min.,
00 secs. (Range: 3 seconds to 99
minutes 59 seconds)
• Shot Interval Time (SHO) = 00
min., 20 secs. (Range: 3 seconds to
5 minutes 59 seconds)
• Steam Shot Time (H2O) = 0_70
(Range: 0_10 second to 2_50)
This converts approximately 3/4 oz. (25 milliliters) of water to steam every 20 seconds
for a 15 minute cooking cycle.
NOTE: 120V Miracle Steamer is factory
programmed for the following
recommended settings:
• Total Cycle Time (CYC) = 2 min.,
00 secs. (Range: 3 seconds to 99
minutes 59 seconds)
• Shot Interval Time (SHO) = 00
min., 20 secs. (Range: 3 seconds to
5 minutes 59 seconds)
• Steam Shot Time (H2O) = 0_40
(Range: 0_10 seconds to 2_50)
NOTE: Units with MFG. No. 9100440 are
factory programmed for the following recommended settings:
• Total Cycle Time (CYC) = 0 min.,
08 secs. (Range: 3 seconds to 99
minutes 59 seconds)
• Shot Interval Time (SHO) = 00
min., 10 secs. (Range: 3 seconds to
5 minutes 59 seconds)
• Steam Shot Time (H2O) = 0_60
(Range: 0_10 seconds to 2_50)
NOTE: The Start/Stop or Operate but-
tons may be pressed at any time
during programming to store the
changes and exit the PROGRAM
Mode.
NOTE: If a change is not made within
5 seconds at any time during
the programming process, all
changes made up to that point
are stored in memory and the
control reverts to the OPERATION
Mode.
P/N 1010455 Rev. H 04/17 7
Page 8
UP DOWN PRGM
READY
20
SINGLE SHOT
START/STOP
UP DOWN PRGM
START/STOP
READY
00
SINGLE SHOT
UP DOWN PRGM
START/STOP
READY
1500
SINGLE SHOT
UP DOWN PRGM
START/STOP
READY
15
SINGLE SHOT
UP DOWN PRGM
START/STOP
READY
H20
SINGLE SHOT
UP DOWN PRGM
START/STOP
READY
SINGLE SHOT
UP DOWN PRGM
START/STOP
READY
00
SINGLE SHOT
UP DOWN PRGM
START/STOP
READY
SHO
SINGLE SHOT
NOTE: It is recommended that
the SHO and H2O settings
be adjusted to the recommended settings shown in the
Programming section of this
manual.
A. Total Cycle Time
C. Total Cycle Seconds
E. SHO Time in Seconds
B. Total Cycle Minutes
D. SHO Cycle
F. SHO TIME IN MINUTES
POWER CORD
HILIMIT RESET BUTTON
READY
Figure 7. Hi-Limit Reset Button
READY
ERR
UP DOWN PRGM
START/STOP
CAP
G. H2O Cycle H. H2O Setting
Figure 6. Control Programming Sequence
Hi-Limit Reset Button
A hi-limit thermostat turns o electrical power to the steam generator if it
overheats. To reset this thermostat, allow
approximately 45 minutes for the unit to
cool down, remove the black cap, and then
press the Hi-Limit Reset button located on
the rear of the unit (Figure 7). If the unit
requires continuous resetting, contact
Antunes Technical Service.
Status Indicator LEDs
The Miracle Steamer’s Control Board has
four status indicator LEDs described below:
Green (Program): When lit, indicates the
unit is in Program mode.
Yellow (Audio): When lit, indicates 10-15
VDC is being supplied to the audio signal.
The audio signal sounds and the LED lights
for approximately 3 seconds.
Red (Heat): When lit, indicates the Control
Board is calling for heat by supplying 10-15
VDC to the Solid State Relay. When o,
indicates that the unit is satised.
Green (H2O): When lit, indicates that 24 VAC
is being supplied to operate the solenoid
valve. This LED is only lit for approximately
1 second.
Fault Codes
When the programming parameters for
Minutes/Seconds/SHO/H2O have been
inadvertently changed below or above their
limits, the unit displays the “ERR” fault code
(Figure 8). If this code appears, clear these
settings using the procedure below:
1. Turn the unit o.
2. Press and hold the Program and
Start/Stop buttons simultaneously
3. Turn the unit on while continuing
to hold the Program and Start/Stop
buttons. Release the buttons when
the unit stops beeping,
4. The display will now register the
cycle time.
NOTE: Repeat these steps if the unit still
displays the “ERR” fault code.
POWER
Figure 8. “ERR” Fault Code
P/N 1010455 Rev. H 04/178
Page 9
MAINTENANCE
Daily
NOTE: Frequency of cleaning is deter-
mined by water conditions,
usage, and water ltration
systems.
1. Turn the power o, unplug the
power cord, and allow the unit to
cool down before proceeding.
2. Check the Water Pressure Regulator
gauge and verify that it reads 20–25
psi (1.4–1.7 kg/cm2 or 138–172
kPa). If not, adjust the pressure as
described in the Installation section
of this manual.
3. Check the rear water Quick
Disconnect Fitting and Hose Clamp
for leakage. Tighten clamps or replace parts if needed.
4. MS-250: Remove the Spatula,
Spatula Liner, Drip Pan, Top Cover,
and Steam Vent (Figure 9).
MS-255: Remove the Drawer, Drawer
Liner with Rollers, Drip Pan, Top
Cover, and Steam Vent (Figure 10).
NOTE: MFG. No. 9100933 does not use
the Drip Pan or Steam Vent.
5. Wash items in hot, soapy water and
then rinse and wipe dry.
6. Wipe down the food compartment
and the entire exterior of the unit
with a clean, hot, damp cloth (not
dripping wet) and wipe dry.
7. Reinstall the Steam Vent rst, followed by the remaining items.
NOTE: Failure to properly clean and dry
the items prior to reassembly
may result in the accumulation
of water/moisture overnight.
This could permanently damage
of the equipment’s nish and its
accessories. This damage is NOT
covered by warranty.
CAUTION
Chlorides or phosphates in cleaning agents
(such as bleach, sanitizers, degreasers, or
detergents) could cause permanent damage
to stainless steel equipment. The damage is usually in the form of discoloration,
dulling of metal surface nish, pits, voids,
holes, or cracks. This damage is permanent
and not covered by warranty. The follow-
ing tips are recommended for mainte-
nance of your stainless steel equipment:
y Always use a soft, damp cloth for
cleaning, rinse with clear water, and
wipe dry. When required, always rub
in direction of metal polish lines.
y Routine cleaning should be
done daily using soap, ammonia
detergent, and water.
y Stains and spots should be removed
using a vinegar solution.
y Finger marks and smears should be
rubbed o using soap and water.
y Hard water spots should be
removed using a vinegar solution.
SPATULA
SPATULA LINER
Figure 9. Daily Cleaning–MS-250
TOP COVER
CAUTION
If a chemical cleaner is used, be sure it is
safe to use on cast aluminum. Observe all
precautions and warnings on product label.
STEAM
VENT
MFG. NO.
9100440
ONLY
STEAM
VENT
TOP
COVER
DRIP PAN
STEAM VENT
(EXCEPT MFG. NO.
9100933)
P/N 1010455 Rev. H 04/17 9
DRAWER
DRIP PAN (EXCEPT MFG. NO. 9100933)
Figure 10. Daily Cleaning–MS-255
DRAWER LINER
WITH ROLLERS
Page 10
Monthly
The Miracle Steamer utilizes an open
steam Generator. Water sprayed onto the
Generator surface ashes into steam immediately, but the minerals in the water
do not steam, they stay on the Generator
surface. A small amount of calcium/mineral
deposits are needed for proper operation,
but a buildup of excessive calcium/mineral
deposits causes poor steaming eciency
and excessive moisture (wet steam), which
will eventually severely hinder the steaming
action.
Cleaning Steam Generator
1. Turn the power o, unplug the
power cord, and allow the unit to
cool down.
2. Perform the Daily cleaning, but do
NOT reassemble the unit.
3. Remove the Wing Nut, Generator
Cover, and Diuser (Figure 11). Wash
these items in hot, soapy water, rinse
and WIPE DRY.
4. With the unit cool, use a wire brush
and/or
scraper to loosen and remove the
excessive calcium/mineral deposits
from the Generator
surface.
5. Take a wire brush and clean out any
buildup from the 28 Steam Ports
(26 vertical and 2 horizontal) of the
Generator (Figure 11). Remove the
loose buildup, wipe the Generator
with a clean, damp cloth, and reassemble the unit.
NOTE: If deposits are still excessive and/
or dicult to remove, refer to
Steps 6 and 11.
6. Pour delimer solution (not supplied)
onto the Generator surface. Follow
the delimer manufacturer’s instructions for proper mixture and use.
NOTE: To ensure proper steaming
characteristics, some calcium/
mineral deposits must be present on the Generator surface. If,
during cleaning, the surface does
become free of calcium/mineral
deposits, add plain tap water to
the surface and allow it to boil
o. If necessary, repeat this process to formulate a thin coating
of calcium/mineral deposits.
NOTE: In soft water areas, it may be nec-
essary to add a small amount of
lime to the Generator to “season”
it. This will ensure proper steaming characteristics by producing
a thin coating of calcium/mineral deposits on the Generator
surface.
Seasoning mixture consists of 3/4
ounces (25ml/ 25cc) baking soda, 3/4
ounces (25ml/25cc) lime mixed with 1 quart
(950ml/950cc) of water. Stir mixture and
pour 1/4” deep onto the hot Generator surface. After mixture is converted to steam,
the remaining loose power can be removed.
8. Plug the power cord into the appropriate outlet.
9. Turn the power on and allow the unit
to warm up for approximately 30
minutes.
10. Push and release the Operate button
or the Start/Stop button several
times to operate the steamer. This
purges any remaining delimer residue from the Generator surface.
11. Turn the power o, reinstall all parts
and accessories, and return the unit
to service.
WING NUT
GENERATOR
COVER
CAUTION
If a chemical cleaner/delimer is used,
be sure it is safe to use on cast alu-
minum. Observe all precautions and
warnings on the product label.
7. Using a sponge or a dry towel, re-
move the delimer solution from the
Generator surface, then rinse with
clean water.
DIFFUSER
GENERATOR
READY
Figure 11. Monthly Cleaning
STEAM PORTS
(26 VERTICAL AND
2 HORIZONTAL)
P/N 1010455 Rev. H 04/1710
Page 11
TUBING
Checking and Cleaning the Water Strainer
The Water Strainer protects your equipment
from any foreign debris in the water line
that could get into the food or damage the
unit’s solenoid and cause the unit to leak
or ood. It also protects the equipment’s
proper and consistent operation from
interference.
To ensure proper and consistent steaming
results, check the Water Pressure Regulator
and Strainer Cup regularly. If the pressure has dropped, check the Strainer Cup
and clean out the accumulated debris as
follows.
1. Shut o the water supply valve to
the unit, unscrew the clear, plastic
Strainer Cup and carefully remove
the Mesh Screen.
2. At the sink, gently ush all of the accumulated debris from the Strainer
Cup and Mesh Screen. Be especially
careful not to damage the Mesh
Screen.
3. Carefully place the Mesh Screen into
its seat at the bottom of the Strainer
Cup and conrm that the orange
O-ring is properly seated in its place
before screwing the Strainer Cup
and top back together.
4. Purge the air out of the strainer and
tubing by disconnecting the Male
Quick Disconnect Insert from the
equipment and, over a bucket, push
the white plastic tip in until there is
good water ow.
5. Replace damaged or worn parts as
needed.
6. Verify that the Water Pressure
Regulator is set to 20–25 psi (1.4–1.7
kg/cm2 or 138–172 kPa).
O-RING
STRAINER CUP
Figure 12. Inlet Hose Assembly
MESH
SCREEN
MALE QUICK
DISCONNECT INSERT
P/N 1010455 Rev. H 04/17 11
Page 12
TROUBLESHOOTING
WARNING
To avoid possible personal injury and/or damage to the unit, inspection, test and repair of electrical equip-
ment should be performed by qualied service personnel. The unit should be unplugged when servicing.
Problem Possible Cause Corrective Action
Control Display is blank (power is on but indicator
light is o).
Control Display is blank (power is on and indicator light is on).
Unit does not heat up (Control Display is on). Hi-Limit Thermostat is tripped or inoperable. Reset the Hi-Limit Thermostat according to the
The unit’s main electrical panel
circuit breaker trips.
Water leaking inside electrical
housing.
“ERR” appears in the Control Display. Programming and/or SHO and H2O values were
The power cord is not correctly plugged in. Plug the power cord into the appropriate outlet.
The power cord and/or electrical plug is
damaged.
The main electrical panel circuit breaker is o or
has been tripped.
Switch is inoperable. Contact your maintenance person or Antunes
Control Board is inoperable Contact your maintenance person or Antunes
Transformer is inoperable.
Loose, burnt, or broken wires in
circuit.
Solid State Relay is inoperable.
Thermocouple is inoperable.
Control Board is inoperable.
Steam Generator is inoperable.
Loose, burnt, or broken wires in
circuit.
Damaged receptacle, plug, or cord; a loose connection; or an internal component failure.
Loose or damaged water line tubes and/or ttings inside electrical
housing.
adjusted/changed improperly.
Inspect electrical wire, plug, and receptacle.
Reset circuit breaker. Contact your maintenance
person or Antunes Technical Service if it trips
again.
Technical Service.
Technical Service.
Operations section of this manual. If the Hi-Limit
Thermostat requires continuous resetting, contact
your maintenance person or Antunes Technical
Service.
Turn the unit o, allow it to cool to room temperature, and then restart. Contact your maintenance
person or Antunes Technical Service if the condition repeats.
Tighten or replace tubes and/or
ttings.
Reset the Control Board as described in the
Programming section of this manual. See Fault
Codes.
P/N 1010455 Rev. H 04/1712
Page 13
Problem Possible Cause Corrective Action
Unit heats but there is little or
no steam produced
and/or
The product requires more
steaming than usual.
Excessive condensation in
Food Compartment.
Steam coming out around
top covers or sides.
Unit oods overnight and/
or continues to steam even
when in idle mode.
Water Line Valve is closed. Check that the Water Line Valve is open.
Filter Strainer is restricted. Check and clean the Filter Strainer as described in the Maintenance
Quick Disconnect is not fully engaged at rear of
the unit or is damaged.
Low or no water pressure in the water line. Remove the Quick Disconnect Insert from the rear of the unit. While
Improper water pressure to unit. Verify that a Water Pressure Regulator is installed and set to 20–25 psi.
Unit is not being cleaned properly (daily/
monthly).
Programming and/or SHO, H2O
values were adjusted/changed improperly.
Insucient or excessive calcium/mineral deposits
on the Generator surface.
Generator surface is bare. Generator surface must have a thin calcium/mineral coating for
Generator Steam Ports are
restricted.
Generator Cover is warped or loose. Verify that the Generator Cover Wing Nut is tight. If noticeable steam
Generator Diuser is missing. Install Generator Diuser or replace if missing.
Generator surface temperature is too low. Verify Generator surface temperature to be 380–420°F (193–215°C).
Water pressure is too high. Verify that the Water Pressure Regulator is set to 20–25 psi. Adjust
Programming and/or SHO and H2O values were
adjusted improperly.
Generator Cover’s Wing Nut is loose. Tighten Wing Nut.
Generator Cover is warped. Replace Generator Cover.
Solenoid Valve is leaking due to debris trapped
inside the plunger.
Solenoid Valve is installed
incorrectly.
There is no pre-strainer or lter on the water line
just before the unit .
section of this manual.
Remove and reengage the Quick Disconnect rmly until a click is
heard. Replace if damaged.
holding over an empty cup, press the white tip. Strong, steady water
ow should be noted. If so, reengage rmly into unit. If not present,
or pressure is low, contact your maintenance person or plumber.
Clean unit daily and monthly as described in the Maintenance section
of this manual.
Reprogram the SHO and H2O values as described in the Programming
section of this manual.
Verify that thin layer of calcium/mineral deposits is present on the
Generator surface. Refer to the Maintenance section of this manual.
proper steaming. Refer to the Maintenance section of this manual.
Clean the Steam Ports as described in the Maintenance section of this
manual.
escapes around the Generator Cover, replace the cover.
accordingly.
Reprogram the SHO and H2O values as described in the Programming
section of this manual.
Attempt to ush the debris out of the valve by rapidly operating
the unit on a number of single shot cycles and then letting it rest. If
the unit still leaks, disassemble the Solenoid Valve and clean out the
plunger. Reassemble unit and test. If a leak is still present, replace
the Solenoid Valve. Contact your maintenance person or Antunes
Technical Service.
If the Solenoid Valve was replaced, verify that the “IN” and “OUT” labels
on the valve correspond to the water ow.
Equipment was supplied with a strainer. If missing, install strainer.
P/N 1010455 Rev. H 04/17 13
Page 14
REPLACEMENT PARTS
95
74
99
20
90
36
41
18
42
6
17
54
10
54
98
64
15
57
11
54
95
74
21
90
36
7a
24
7
22
8
66
READY
62
94
65
13
12
70
35
89
87
86
85
80
82
83
84
81
79
93
88
81
85
P/N 1010455 Rev. H 04/1714
Page 15
READY
READY
27
26
1
22
55
97
5
55
46
30
29
33
46
28
34
32
23
49
67
48
68
37
55
55
72
71
51
50
25
59
2
60
READY
69
55
19
57
P/N 1010455 Rev. H 04/17 15
Page 16
Item Part No. Description Qty. Item Part No. Description Qty. Item Part No. Description Qty.
1 0011123 Solenoid Valve Assy. (Incl. # 5 & 97) 1
2 7000652 Relay 1
3 0010584 Inlet Hose Assy. w/ strainer 1
5 4040145 Solenoid Valve 24 VAC 1
6 7000237 Top Cover Assy. (Incl. #41 & #42) 1
7 0011314 Steam Vent Assy. 1
(All except Mfg. No. 9100440
and 9100933
7a 0013041 Steam Vent Assy 1
Mfg. No. 9100440 Only
8 0021131 Floor/Chassis Weldment 1
10 7000246 Generator, 230V 1
7000245 Generator, 208V 1
7000300 Generator, 120V 1
11 0300129 Stud, Cover Hold Down 1
12 040P138* Locknut, 1/2” 1
13 040K251 Strain Relief (Incl. #12) 1
14 05P2199* Spacer 2
15 0503431 Diuser, Steam 1
17 0503433 Cover, Generator 1
18 0503434 Cover, End Housing 1
19 0503435 Retainer, Thermocouple 1
21 0021314 Liner, Cavity (MS-250 only) 1
21a 0504081 Liner Cavity (not Shown) 1
For MFg. No. 9100437 only)
22 0503441 Access Cover 1
23 0503472 Bracket, Hi-Limit Support 1
24 0700452 Power Cord, NEMA 6-20P 1
(Mfg. No. 9100430, 9100435, 9100436,
9100467, 9100460, 9100466, & 9400933)
0700453 Power Cord, CEE 7/7 1
(Mfg. No. 9100438, 9400440, & 9100468)
0700463 Power Cord, Nema 5-15P 1
(Mfg. No. 9100462)
0700437 Power Cord IEC-309 1
(Mfg. No. 9100431, 9100441, & 9100467)
0700697 Power Cord AS3112 Australian 1
Plug 20 Amp., 250 VAC.
(Mfg. No. 9100444 only)
26 100P967 Label, Marking 1
27 1001036 Label, Control Panel 1
28 2000203 Tube, Restrictor, 1/4” 1
29 2000207 Tube, Inlet, 1/4 x 2-1/2” Long 1
30 2040103 Connector, Male, 1/4 x 1/8 NPT 1
32 2040145 Elbow, Female, 1/8” x 1/4” 1
33 2040146 Tee, Female, 1/8” x 1/4” 1
34 7000694 Water Fitting Kit 1
(Incl. #28, 29, 30, 32, & 33)
35 210K108 Foot, Rubber (4 Pack) 1
36 2100119 Handle, Spatula (MS-250 only) 1
37 4050180 Heat Sink 1
41 2100249 Guard, Knob 1
42 2100273 Knob 1
46 7000449 Generator Tube, 4-1/2” Lg. 1
48 300P102* Nut, Speed, “U”, #8-32 2
49 304P105* Nut, Hex, KEPS, #4-40, Zinc 4
50 306P101* Nut, Hex, #6-32 2
51 306P105* Screw, Machine, #6-32 x 1/2” 2
52 306P123* Screw, Machine, #6-32 x 7/8” 2
53 306P130* Nut, Hex, KEPS, #6-32 2
54 306P134* Screw, Machine, #6-32 x 3/8 3
55 308P103* Screw, Machine, #8-32 x 1/4” 6
57 308P105* Screw, Machine, #8-32 x 1/2” 4
58 308P120* Screw, Machine, 4
#8-32 x 5/8” (sltrshd)
59 308P124* Screw, Machine, 1
#8-32 x 1/2” (one-way)
60 308P143* Nut, Hex, KEPS, #8-32 2
61 310P136* Screw, Machine, 4
#10-32 x 1-1/4” (splanhd)
62 310P149* Screw, Machine, 2
#10-32 x 7/8”
64 325P170* Nut, Wing, 1/4-20 1
65 7000542 Rocker Switch, Power On/O 250V 1
7000543 Rocker Switch, Power On/O 120V 1
66 4010166 Switch, Momentary (Green) 1
4010190 Switch, Momentary (White) 1
67 7000319 Transformer, 115-230/24V 1
68 7000135 Thermostat, Hi-Limit 1
69 4050214 Thermocouple, Type-K 1
70 406P107 Cable Tie 3
71 7000136 Terminal Block, 3-Pole 1
72 7000317 Control Board, 1
Temperature/Timer, 24V, 50/60 Hz
4070224 Assy -PCB, Miracle Steamer 1
(MFg. No. 9100440 Only)
74 338P102* Bolt, Handle Mounting 1
(MS-250 only)
79 0011471 Drawer Assy. (Incl. #80-87) 1
(MS-255 only)
80 0021283 Drawer Weldment (MS-255 only) 1
81 210K195 Bearing, Roller, SS 4
(MS-255 only) (Incl. #85)
82 2100257 Handle (MS-255 only) 1
83 2100264 Guard, Handle (MS-255 only) 1
84 325P132* Screw, Machine, 1/4-20 x 1/2” 2
(MS-255 only)
85 05P2991 Spacer (MS-255 only) 2
86 306P137* Stud, PEM, #6-32 x 3/8” 2
(MS-255 only)
87 306P107* Acorn Nut, #6-32 (MS-255 only) 2
88 0021237 Liner Weldment (MS-255 only) 1
89 0503536 Drip Pan 1
(all except Mfg. No. 9100933)
90 2100118 Guard, Handle 1
91 See page 21 for Strainer Parts Identica-
tion.
92 7000139 Quick Disconnect Insert 1
93 0011413 Liner Assy. (MS-255 only) 1
94 0011370 2” Leg Kit (Incl. #35) 4
94a 210K134 4” Leg Kit (not shown) 1
94b 210K123 4” Leg Kit (optional) (not shown) 1
95 0800359 Trivet, Spatula (MS-250 only) 1
97 7000138 Quick Disconnect Female Kit 1
98 0503429 Support, Generator Upper. 1
99 7000260 Spatula Kit (Incl. #20, 36, 74, 90, 95) 1
(MS-250 only) (9100435/437 Only)
* Only available in quantities of 10.
P/N 1010455 Rev. H 04/1716
Page 17
! WARNING
18
MISUSE OF PRODUCTMAY CAUSE
PERSONALINJURY.READ ASME
INSTALATION/OPERATING INTRUCT
1/4
NPT
MADE IN USA IMI
R91G-24K-NLN
INLET 150 PSIG MAX
OUTLET 125 PSIGMAX
TEMP 125 F°MAX
Dual Water Pressure Regulator Kit - Part No. 7000235
(All units except Mfg. No. 9100933)
TO STEAMER
2
4
5
13
1
TO STEAMER
9
11
6
7
8
Item Part No. Description Qty.
1 7000139 Elbow, Quick Disconnect - 1/4” 2
2 2030126 Tubing 1/4” I.D. PVC BRD. 24” Long 1
10
3 2030125 Tubing 1/4” I.D. PVC BRD. 12” Long 1
4 2040150 Elbow, Male - Nylon 2
1/4” Barb x 3/8” NPT
3
5 0503615 Bracket, Manifold Mtg. 1
6 2190129 Nipple 1/4” NPT x 1/4” NPT 1
7 7000333 Strainer - 1/4” FPT 1
8 2080118 Quick Disconnect - 1/8” NPT 1
9 2190113 Manifold 1
10 211P104 Clamp, Ear Med. 4
11 2040151 Nipple, Hex - 3/8” x 1/4” NPT Nylon 1
12
12 7000306 Gauge, Water Pressure 1
13 2170113 Regulator, Pressure 1
NOTE: Two adjacent steamers can be
fed with a Dual Water Pressure
Regulator.
WATER SUPPLY
Single Water Pressure Regulator Kit - Part No. 7000314
4
3
1/4
NPT
6
30
40
20
200
kPa
300
100
10
50
0
400
0
60
psi
5
1/4
NPT
5
2
NOTE: Item 1
is made up of
3
Items 2–4.
Item Part No. Description Qty.
1
2
1 0503849 Bracket 1
2 2040130 Male Adapter, Barbed 1/4” 2
3 See Below for Strainer Parts
Identication
4 2170113 Regulator, Pressure 1
5 7000306 Gauge, Water Pressure 1
6 2190129 Nipple 1/4” NPT x 1/4” NPT 1
7 211P104 Clamp, Worm (not shown) 2
Item Part No. Description Qty.
1 7000333 Water Line Strainer Kit 1
2 2040130 Male Adapter, Barbed 1/4” 2
3 7000334 Replacement Screen and O-ring Kit 1
4 211P104 Clamp, Worm (not shown) 2
P/N 1010455 Rev. H 04/17 17
Page 18
WIRING DIAGRAM
*NOTE: For 208-240 VAC units, the two primary coils are wired in series with one another.
For 120 VAC units, the two primary coils are wired in parallel with one another.
P/N 1010455 Rev. H 04/1718
Page 19
NOTES
P/N 1010455 Rev. H 04/17 19
Page 20
LIMITED WARRANTY
Equipment manufactured by Roundup Food Equipment Division of A.J. Antunes & Co. has been constructed of the nest
materials available and manufactured to high quality standards. These units are warranted to be free from electrical and
mechanical defects for a period of one (1) year from date of purchase under normal use and service, and when installed in
accordance with manufacturer’s recommendations. To insure continued operation of the units, follow the maintenance
procedures outlined in the Owner’s Manual. During the rst 12 months, electro-mechanical parts, non-overtime labor,
and travel expenses up to 2 hours (100 miles/160 km), round trip from the nearest Authorized Service Center are covered.
1. This warranty does not cover cost of installation, defects caused by improper storage or handling prior to placing of
the Equipment. This warranty does not cover overtime charges or work done by unauthorized service agencies
or personnel. This warranty does not cover normal maintenance, calibration, or regular adjustments as specied
in operating and maintenance instructions of this manual, and/or labor involved in moving adjacent objects to
gain access to the equipment. This warranty does not cover consumable/wear items. This warranty does not cover
damage to the Load Cell or Load Cell Assembly due to abuse, misuse, dropping of unit/shock loads or exceeding
maximum weight capacity (4 lbs). This warranty does not cover water contamination problems such as foreign
material in water lines or inside solenoid valves. It does not cover water pressure problems or failures resulting
from improper/incorrect voltage supply. This warranty does not cover Travel Time & Mileage in excess of 2 hours
(100 miles/160 km) round trip from the nearest authorized service agency.
2. Roundup reserves the right to make changes in design or add any improvements on any product. The right is always
reserved to modify equipment because of factors beyond our control and government regulations. Changes to
update equipment do not constitute a warranty charge.
3. If shipment is damaged in transit, the purchaser should make a claim directly upon the carrier. Careful inspection
should be made of the shipment as soon as it arrives and visible damage should be noted upon the carrier’s receipt. Damage should be reported to the carrier. This damage is not covered under this warranty.
4. Warranty charges do not include freight or foreign, excise, municipal or other sales or use taxes. All such freight and
taxes are the responsibility of the purchaser.
5. This warranty is exclusive and is in lieu of all other warranties, expressed or implied, including any implied warranty
or merchantability or tness for a particular purpose, each of which is hereby expressly disclaimed. the remedies
described above are exclusive and in no event shall roundup be liable for special consequential or incidental damages for the breach or delay in performance of this warranty.
+1 (630) 784-1000
+1 (800) 253-2991
+1 (630) 784-1650
+86-512-6841-3637
+86-512-6841-3907
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