Antunes Miracle Steamer MS-250 User manual

P/N 1010455 Rev. K 10/20
®
Miracle Steamer
Owner’s Manual
Model MS-250/255
Original Instructions
www.antunes.com
READY
Manufacturing Numbers:
9100430, 9100431, 9100435, 9100436,
9100437, 9100438, 9100460, 9100462,
9100466, 9100467, 9100468, 9100933,
9100936

®
P/N 1010455 Rev. K 10/20
2
Contents
Overview................................................2
Before Use ...........................................2
In Case of Damage ..............................2
Website ................................................2
Service/Technical Assistance..............2
Safety Information................................3
Installation............................................3
Operation .............................................3
Maintenance.........................................3
Service .................................................3
Specications .......................................4
Dimensions ..........................................4
Electrical Ratings .................................4
Installation.............................................5
Unpacking ............................................5
Equipment Setup..................................5
Electrical...............................................6
caution..................................................6
Plumbing ..............................................6
caution..................................................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
Parts List ............................................14
Exploded Views ..................................15
Exploded Diagram 1...........................15
Exploded Diagram 2...........................16
Exploded Diagram 3...........................17
Wiring Diagram ...................................18
Notes....................................................19
Overview
This unit is intended to be used for
commercial applications, for example: in
kitchens of restaurants, canteens, hospi-
tals and in commercial enterprises such
as bakeries, butcheries, etc., But not for
continuous mass production of food.
Before Use
This manual contains safety, installation,
and operating procedures for the unit.
Read and understand it completely be-
fore installing or operating the unit. Keep
this document for reference. If the unit
changes ownership, this manual must
accompany it.
In Case of Damage
If the unit arrives damaged, le a claim
with the carrier immediately. Save all
packing materials when ling a claim.
Freight damage claims are the respon-
sibility of the purchaser and are not
covered under warranty.
Website
www.antunes.com
Service/Technical
Assistance
If you experience any problems with
the installation or operation of your unit,
contact Antunes Technical Service at +1-
877-392-7854 (toll free).
Fill in the information in the next column
and have it handy when calling for
assistance. The serial number is on the
specication 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
Antunes. reserves the right to change
specications and product design
without notice. Such revisions do not
entitle the buyer to corresponding
changes, improvements, additions or
replacements for previously purchased
equipment.
IMPORTANT
Keep these instructions for future
reference. If the unit changes
ownership, be sure this manual
accompanies the equipment.

®
P/N 1010455 Rev. K 10/20 3
Safety Information
Installation
yRead and understand all
instructions before installing
or using the unit.
yThe unit MUST be installed
by personnel qualied to work
with electricity and plumbing.
yInstall this unit to comply with the
basic plumbing code of the Building
O󰀩cials and Code Administrators,
Inc. (BOCA) and the Food Service
Sanitation Manual of the Food
and Drug Administration (FDA).
yInstall and locate the equipment
only for its intended use as
described in this manual.
Operation
yThe unit is furnished with
a properly grounded cord
connector. Do not attempt to
defeat the grounded connector.
yDo not operate the unit if it has
been damaged or dropped, if
it has a damaged cord or plug,
or if it is not working properly.
yDo not block or cover any
openings on the equipment.
yDo not immerse the cord,
unit, or plug in water.
yKeep the cord away from
heated surfaces.
yDo not allow the cord to hang over
the edge of a table or counter.
yKeep the area around the unit
free and clear of all combustible
materials. Failure to do so may
result in re or property damage.
WARNING: To avoid scalding, do
not use loaded containers
with liquids or cooking goods
which becomes uid by
heating in higher levels than
those which can be easily
observed.
WARNING: Opening steamer drawers
during operation releases
steam. Compartment and
contents may be hot.
Maintenance
yDo not use abrasive materials;
they can damage the unit’s
stainless steel nish.
yDo not use corrosive chemicals
in this equipment.
yChlorides or phosphates in
cleaning agents (e.g., bleach,
sanitizers, degreasers, and
detergents) can permanently
damage stainless steel equipment.
The damage is usually in the form
of discoloration, dulling of the metal
surface nish, pits, voids, holes, or
cracks. This damage is permanent
and is not covered by warranty.
yAlways use a soft, damp cloth
for cleaning. Rinse with clear
water and wipe dry. When
required, always rub in the
direction of metal polish lines.
yRoutine cleaning should
be performed daily with
soap and water.
yDo not clean unit or components
in a dishwasher unless
specically specied in the
cleaning instructions.
yDo not clean the unit with a
water jet or steam cleaner.
Service
yInspection, testing, and
repair of electrical equipment
must be performed only by
qualied service personnel.
yTo avoid possible personal injury
and/or damage to the unit, all
inspections, tests, and repair of
electrical equipment should be
performed by qualied personnel
ONLY. Contact Antunes Technical
Service for adjustment or repair.
yTurn the power o󰀨, unplug the
power cord, and allow unit
to cool to room temperature
before performing any
service or maintenance.
yIf the supply cord is damaged,
it must be replaced by the
manufacturer, its service agent,
or a similarly qualied person in
order to avoid an electrical hazard.
yCleaning and user maintenance
shall not be made by children
without supervision.
WARNING
ELECTRICAL SHOCK HAZARD.
Failure to follow the instructions in
this manual could result in serious
injury or death.
Do NOT modify the power supply cord
plug. If it does not t the outlet, have
a proper outlet installed by a qualied
electrician.
Electrical ground is required on
this appliance.
Check with a qualied electrician if
you are unsure if the appliance is
properly grounded.
Do NOT use an extension cord with
this product.
The unit should be grounded ac-
cording to local electrical codes to
prevent the possibility of electri-
cal shock. It requires a grounded
receptacle with separate electrical
lines, protected by fuses or circuit
breaker of the proper rating.
NEVER unplug the power cord
while the unit is running. Use the
proper shutdown procedure before
unplugging the power cord.

®
P/N 1010455 Rev. K 10/20
4
Specications
Model &
Mfg. No. Volts Watts Amps Hertz Plug Description
MS-250
9100430 208 3300 15.9 50/60 6-20P, 20 Amp., 250 VAC, Non Locking
MS-250
9100431
Saudi
Arabia
230 3300 14.4 50/60
IEC-309
16 Amp., 250 VAC
Pin & Sleeve
(Assembly Only)
MS-250
9100435 208 3300 15.9 50/60 6-20P, 20 Amp., 250 VAC, Non Locking
MS-250
9100436 230 3300 14.4 50/60 6-20P, 20 Amp., 250 VAC, Non Locking
MS-250
9100437 230 3300 14.4 50/60 6-20P, 20 Amp., 250 VAC, Non Locking
MS-250
9100438 230 3300 14.4 50/60 CEE 7/7, 16 Amp., 250 Volt
MS-255
9100460 230 3300 14.4 50/60 6-20P, 20 Amp., 250 VAC, Non Locking
MS-255
9100462 120 1800 15.0 50/60 NEMA 5-15P, 15 Amp., 120 Volt
MS-255
9100466 230 3300 14.4 50/60 6-20P, 20 Amp., 250 VAC, Non Locking
MS-255
9100467
Saudi
Arabia
230 3300 14.4 50/60
IEC-309
16 Amp., 250 VAC
Pin & Sleeve
(Assembly Only)
MS-255
9100468 230 3300 14.4 50/60 CEE 7/7, 16 Amp., 250 Volt
MS-255
9100933 208 3300 15.9 50/60 6-20P, 20 Amp., 250 VAC, Non Locking
Electrical Ratings
Dimensions
20-3/4”
(527 mm)
17-1/8”
(435 mm)
9-1/2”
(234 mm)

®
P/N 1010455 Rev. K 10/20 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:
yOwner’s Manual
yInlet Hose Assembly
ySpatula Assembly (MS-250 only)
yDrawer Assembly (MS-255 only)
NOTE: If any parts are missing
or damaged, contact
Antunes Customer Service
IMMEDIATELY at +1-877-392-
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 wa-
ter. 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:
yMake sure power is o󰀨 and the
unit is at room temperature.
yDo NOT block or cover any
openings on the unit.
yDo NOT immerse cord
or plug in water.
yKeep cord away from
heated surfaces.
yDo NOT allow cord to hang
over edge of table or counter.
Bolt
Handle
Spatula
Handle Guard
Wire Trivet
Spatula
Wire Trivet
Spatula
Liner
Drip Pan
Figure 1. Washing Parts–MS-250 Only
Drawer
Drip Pan
(Except Mfg. No. 9100933)
Drawer Liner
with Rollers
Figure 2. Washing Parts–MS-255 Only
Figure 3. Assembling Handle–MS-250 Only

®
P/N 1010455 Rev. K 10/20
6
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.
W
W
A
A
R
R
N
N
I
I
N
N
G
G
W
W
A
A
R
R
N
N
I
I
N
N
G
G
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.
W
W
A
A
R
R
N
N
I
I
N
N
G
G
W
W
A
A
R
R
N
N
I
I
N
N
G
G
120 VAC
ONLY
208 VAC
ONLY
T
T
H
H
I
I
S
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A
A
P
P
P
P
L
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A
A
N
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C
C
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T
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B
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A
A
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(
(
G
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T
T
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)
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.
W
W
A
A
R
R
N
N
I
I
N
N
G
G
W
W
A
A
R
R
N
N
I
I
N
N
G
G
220-240
VAC ONLY
T
T
H
H
I
I
S
S
A
A
P
P
P
P
L
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I
I
A
A
N
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(
(
G
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)
)
T
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)
Electrical
1. Place the unit on a sturdy, level table
or other work surface.
2. Ensure that the line voltage corre-
sponds to the stated voltage on the
units specication 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.
Figure 4. Connecting Water Supply
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) sole-
noid 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.
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.
3. Once the regulator reads 20 psi,
push the black knob down to lock it
in place.
4. Push the Quick Disconnect Insert
into the tting at the rear of the unit
until it clicks (Figure 4).
Connect Quick
Disconnect
Insert Here
Inlet Hose & Strainer
Assy. (Supplied)
Optional Water Pressure Regulator
with Strainer (P/N 7000314 shown)
Shut Off Valve
(Not Supplied)
Cold
Water
Flow
Flexible Nylon Braided
1/4 " I.D. Tubing (Not Supplied) Quick
Disconnect
Insert
Worm
Clamp
NOTE: The use of only one strainer is
acceptable instead of two.
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).
CAUTION
This equipment is to be installed to com-
ply with the basic plumbing code of the
Building O󰀩cials and Code Administra-
tors, Inc. (BOCA) and the Food Service
Sanitation Manual of the Food and Drug
Administration (FDA).

®
P/N 1010455 Rev. K 10/20 7
Operation
1. Turn the power on and allow the unit
to preheat for approximately 20–30
minutes.
NOTE: Do NOT push any button
during 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.
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 wa-
ter 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 genera-
tor.
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 deter-
mine the best settings for your cooking
needs.
To program the control, refer to Figure 6
and follow the procedure below:
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.
UP DOWN PRGM START/STOP
POWER
READY
Figure 5. Operating Controls
Ready Light
Power
Switch
Operate
Button
Message
Display
Start/Stop
Button
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.
NOTE: 208V and 220/240V Miracle
Steamers are factory
programmed for the following
recommended settings:
yTotal Cycle Time (CYC) = 15
min., 00 secs. (Range: 3 seconds
to 99 minutes 59 seconds)
yShot Interval Time (SHO) = 00
min., 20 secs. (Range: 3 seconds
to 5 minutes 59 seconds)
ySteam 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:
yTotal Cycle Time (CYC) = 2 min.,
00 secs. (Range: 3 seconds
to 99 minutes 59 seconds)
yShot Interval Time (SHO) = 00
min., 20 secs. (Range: 3 seconds
to 5 minutes 59 seconds)
ySteam Shot Time (H2O) = 0_40
(Range: 0_10 seconds to 2_50)
NOTE: The Start/Stop or Operate
buttons 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.
WARNING
To avoid injury, be careful when pulling
the Spatula or Drawer out from unit.
Be sure to allow steam to escape
before putting hands or face over the
steamer.

®
P/N 1010455 Rev. K 10/20
8
Figure 6. Control Programming Sequence
UP DOWN PRGM
READY
20
SINGLE SHOT
START/STOP
E. SHO Time in Seconds
UP DOWN PRGM START/STOP
READY
00
SINGLE SHOT
F. SHO Time in Minutes
UP DOWN PRGM START/STOP
READY
1500
SINGLE SHOT
A. Total Cycle Time
UP DOWN PRGM START/STOP
READY
15
SINGLE SHOT
B. Total Cycle Minutes
UP DOWN PRGM START/STOP
READY
H20
SINGLE SHOT
UP DOWN PRGM START/STOP
READY
SINGLE SHOT
G. H2O Cycle H. H2O Setting
UP DOWN PRGM START/STOP
READY
00
SINGLE SHOT
UP DOWN PRGM START/STOP
READY
SHO
SINGLE SHOT
C. Total Cycle Seconds D. SHO Cycle
Hi-Limit Reset Button
A hi-limit thermostat turns o󰀨 electri-
cal 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
satised.
Green (H2O): When lit, indicates that
24 VAC is being supplied to operate the
solenoid valve. This LED is only lit for ap-
proximately 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 but-
tons. 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.
NOTE: It is recommended that the
SHO and H2O settings be
adjusted to the recommended
settings shown in the Pro-
gramming section of this
manual.
READY
Hi-Limit
Reset
Button
Power Cord Cap
UP DOWN PRGM START/STOP
POWER
READY
ERR
Figure 8. “ERR” Fault Code
Figure 7. Hi-Limit Reset Button

®
P/N 1010455 Rev. K 10/20 9
Daily
NOTE: Frequency of cleaning is de-
termined by water conditions,
usage, and water ltration
systems.
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 met-
al surface nish, pits, voids, holes, or
cracks. This damage is permanent and
not covered by warranty. The following
tips are recommended for maintenance
of your stainless steel equipment:
yAlways use a soft, damp
cloth for cleaning, rinse with
clear water, and wipe dry.
When required, always rub in
direction of metal polish lines.
yRoutine cleaning should be
done daily using soap, ammonia
detergent, and water.
yStains and spots should
be removed using a
vinegar solution.
yFinger marks and smears
should be rubbed o󰀨
using soap and water.
yHard water spots should
be removed using a
vinegar solution.
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 Discon-
nect Fitting and Hose Clamp for
leakage. Tighten clamps or replace
parts if needed.
Maintenance
Drip Pan (Except Mfg. No. 9100933)
Drawer Liner
with Rollers
Drawer
Top
Cover Steam Vent
(except Mfg.
No. 9100933)
Figure 9. Daily Cleaning–MS-250
Figure 10. Daily Cleaning–MS-255
Spatula
Drip Pan
Spatula Liner
Top
Cover
Steam
Vent
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.
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.
7. Reinstall the Steam Vent rst, fol-
lowed by the remaining items.
NOTE: Failure to properly clean and
dry the items prior to reassem-
bly may result in the accumula-
tion of water/moisture over-
night. This could permanently
damage of the equipment’s
nish and its accessories.
This damage is NOT covered
by warranty.

®
P/N 1010455 Rev. K 10/20
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 e󰀩ciency 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 Di󰀨user (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 di󰀩cult 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.
7. Using a sponge or a dry towel,
remove the delimer solution from the
Generator surface, then rinse with
clean water.
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 necessary to add a small
amount of baking soda 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.
Figure 11. Monthly Cleaning
READY
Di󰀨user
Wing Nut
Generator
Cover
Generator
Steam Ports
(26 vertical and 2
horizontal)
Seasoning mixture consists of 3/4 ounces
(25ml/ 25cc) baking soda and 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.
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.

®
P/N 1010455 Rev. K 10/20 11
Figure 12. Inlet Hose Assembly
Checking and Cleaning the Water
Strainer
The Water Strainer protects your equip-
ment 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 steam-
ing results, check the Water Pressure
Regulator and Strainer Cup regularly.
If the pressure has dropped, check the
Strainer Cup and clean out the accumu-
lated 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 ac-
cumulated debris from the Strainer
Cup and Mesh Screen. Be espe-
cially careful not to damage the
Mesh Screen.
3. Carefully place the Mesh Screen
into its seat at the bottom of the
Strainer Cup and conrm that the or-
ange 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 Reg-
ulator is set to 20–25 psi (1.4–1.7
kg/cm2or 138–172 kPa).
NPT
1/4
Male Quick
Disconnect Insert
Strainer
Cup
Tubing
Mesh
Screen
O-ring

®
P/N 1010455 Rev. K 10/20
12
Troubleshooting
Problem Possible Cause Corrective Action
Control Display is blank (power is on but
indicator light is o󰀨).
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.
Inspect electrical wire, plug, and
receptacle.
The main electrical panel circuit breaker
is o󰀨 or has been tripped.
Reset circuit breaker. Contact your
maintenance person or Antunes
Technical Service if it trips again.
Switch is inoperable. Contact your maintenance person or
Antunes Technical Service.
Control Display is blank (power is on and
indicator light is on).
Control Board is inoperable
Contact your maintenance person or
Antunes Technical Service.
Transformer is inoperable.
Loose, burnt, or broken wires in
circuit.
Unit does not heat up (Control Display is
on).
Hi-Limit Thermostat is tripped or
inoperable.
Reset the Hi-Limit Thermostat according
to the Operations section of this
manual. If the Hi-Limit Thermostat
requires continuous resetting, contact
your maintenance person or Antunes
Technical Service.
Solid State Relay is inoperable.
Thermocouple is inoperable.
Control Board is inoperable.
Steam Generator is inoperable.
Loose, burnt, or broken wires in
circuit.
The unit’s main electrical panel
circuit breaker trips.
Damaged receptacle, plug, or cord;
a loose connection; or an internal
component failure.
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.
Water leaking inside electrical
housing.
Loose or damaged water line tubes and/
or ttings inside electrical
housing.
Tighten or replace tubes and/or
ttings.
“ERR” appears in the Control Display.
Programming and/or SHO and H2O
values were adjusted/changed
improperly.
Reset the Control Board as described in
the Programming section of this manual.
See Fault Codes.
WARNING
To avoid possible personal injury and/or damage to the unit, inspection, test and repair of electrical equipment should be
performed by qualied service personnel. The unit should be unplugged when servicing.

®
P/N 1010455 Rev. K 10/20 13
Troubleshooting
Problem Possible Cause Corrective Action
Unit heats but there
is little or no steam
produced
And/or
The product requires
more steaming than
usual.
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 section of this manual.
Quick Disconnect is not fully engaged at
rear of the unit or is damaged.
Remove and reengage the Quick Disconnect rmly until a
click is heard. Replace if damaged.
Low or no water pressure in the water
line.
Remove the Quick Disconnect Insert from the rear of the
unit. While 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.
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).
Clean unit daily and monthly as described in the
Maintenance section of this manual.
Programming and/or SHO, H2O
values were adjusted/changed
improperly.
Reprogram the SHO and H2O values as described in the
Programming section of this manual.
Insu󰀩cient or excessive calcium/mineral
deposits on the Generator surface.
Verify that thin layer of calcium/mineral deposits is present
on the Generator surface. Refer to the Maintenance
section of this manual.
Generator surface is bare.
Generator surface must have a thin calcium/mineral
coating for proper steaming. Refer to the Maintenance
section of this manual.
Generator Steam Ports are
restricted.
Clean the Steam Ports as described in the Maintenance
section of this manual.
Generator Cover is warped or loose.
Verify that the Generator Cover Wing Nut is tight. If
noticeable steam escapes around the Generator Cover,
replace the cover.
Generator Di󰀨user is missing. Install Generator Di󰀨user or replace if missing.
Generator surface temperature is too low. Verify Generator surface temperature to be 380–420°F
(193–215°C).
Excessive condensation
in Food Compartment.
Water pressure is too high. Verify that the Water Pressure Regulator is set to 20–25
psi. Adjust accordingly.
Programming and/or SHO and H2O
values were adjusted improperly.
Reprogram the SHO and H2O values as described in the
Programming section of this manual.
Steam coming out
around top covers or
sides.
Generator Cover’s Wing Nut is loose. Tighten Wing Nut.
Generator Cover is warped. Replace Generator Cover.
Unit oods overnight
and/or continues to
steam even when in idle
mode.
Solenoid Valve is leaking due to debris
trapped inside the plunger.
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.
Solenoid Valve is installed
incorrectly.
If the Solenoid Valve was replaced, verify that the “IN” and
“OUT” labels on the valve correspond to the water ow.
There is no pre-strainer or lter on the
water line just before the unit .
Equipment was supplied with a strainer. If missing, install
strainer.

®
P/N 1010455 Rev. K 10/20
14
Replacement Parts
Parts List
See Exploded Diagrams below
Note
Use only genuine Antunes replacement parts in this unit.
Use of parts other than those supplied by the manufacturer
will void the warranty.
Item
No. Part # 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. (All except Mfg. No.
9100933) 1
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 Di󰀨user, 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) (For MFg. No.
9100437 only) 1
22 0503441 Access Cover 1
23 0503472 Bracket, Hi-Limit Support 1
24
0700452
Power Cord, NEMA 6-20P (Mfg. No.
9100430, 9100435, 9100436, 9100467,
9100460, 9100466 & 9400933)
1
0700453 Power Cord, CEE 7/7 (Mfg. No.
9100438, 9400440, & 9100468) 1
0700463 Power Cord, Nema 5-15P (Mfg. No.
9100462) 1
0700437 Power Cord IEC-309 (Mfg. No.
9100431 & 9100467) 1
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 (Incl. #28, 29, 30, 32,
& 33) 1
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
Item
No. Part # Description Qty.
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, #8-32 x 5/8” (sltrshd) 4
59 308P124* Screw, Machine, #8-32 x 1/2” (one-way) 1
60 308P143* Nut, Hex, KEPS, #8-32 2
61 310P136* Screw, Machine, #10-32 x 1-1/4”
(splanhd) 4
62 310P149* Screw, Machine, #10-32 x 7/8” 2
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, Temperature/Timer, 24V,
50/60 Hz 1
74 338P102* Bolt, Handle Mounting (MS-250 only) 1
79 0011471 Drawer Assy. (Incl. #80-87) (MS-255
only) 1
80 0021283 Drawer Weldment (MS-255 only) 1
81 210K195 Bearing, Roller, SS (MS-255 only) (Incl.
#85) 4
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” (MS-255
only) 2
85 05P2991 Spacer (MS-255 only) 2
86 306P137* Stud, PEM, #6-32 x 3/8” (MS-255 only) 2
87 306P107* Acorn Nut, #6-32 (MS-255 only) 2
88 0021237 Liner Weldment (MS-255 only) 1
89 0503536 Drip Pan (All except Mfg. No. 9100933) 1
90 2100118 Guard, Handle 1
91 See page 21 for Strainer Parts Identication.
2 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)
(MS-250 only) (9100435/437 Only) 1
*Only available in quantities of 10.

®
P/N 1010455 Rev. K 10/20 15
READY
64
17
15
18
20
74
36
22
66
65
6
7
8
10
12
13
24
62
94
35
70
57
54
54
54
42
41
89
81
88
93
81
80
85 79
84
83
82
86
87
85
90
95
98
99
74
36
90
95
21
11
7a
Exploded Views
Exploded Diagram 1

®
P/N 1010455 Rev. K 10/20
16
READY
22 55
READY
72
49
48
67
50
71
51
57
55
68
69
19
55
25
59
60
27
29
32
33
23 55
28
46
30
5
55
46
37
2
97
READY
26
34
1
Exploded Views
Exploded Diagram 2

®
P/N 1010455 Rev. K 10/20 17
50
40
60
10
20
30
1/4
NPT 0psi
200
300
100
0400
kPa
36
4
5
2
1
Single Water Pressure Regulator Kit - Part No. 7000314
NOTE: Two adjacent steamers can be fed with a Dual
Water Pressure Regulator.
! WARNING 18
MISUSE OF PRODUCTMAYCAUSE
PERSONALINJURY.READASME
INSTALATION/OPERATINGINTRUCT
1/4
NPT
MADEIN USA IMI R91G-24K-NLN
INLET150 PSIG MAX OUTLET125 PSIGMAX TEMP 125 F°MAX
Dual Water Pressure Regulator Kit - Part No. 7000235
(All units except Mfg. No. 9100933)
To Steamer
Water Supply
To Steamer
1
10
3
9
2
4
513
11
12
6
7
8
Exploded Views
Exploded Diagram 3
Item
No. Part # Description Qty.
1 7000139 Elbow, Quick Disconnect - 1/4” 2
2 2030126 Tubing 1/4” I.D. PVC BRD. 24” Long 1
3 2030125 Tubing 1/4” I.D. PVC BRD. 12” Long 1
4 2040150 Elbow, Male - Nylon 1/4” Barb x 3/8”
NPT 2
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 7000306 Gauge, Water Pressure 1
13 2170113 Regulator, Pressure 1
Item
No. Part # Description Qty.
1 0503849 Bracket 1
2 2040130 Male Adapter, Barbed 1/4” 2
3See Below for Strainer Parts Identication
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
No. Part # 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
1/4
NPT
2
3
2
NOTE: Item 1 is made up of Items 2–4.

®
P/N 1010455 Rev. K 10/20
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. K 10/20 19
Notes

Limited Warranty
Equipment manufactured by Antunes 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 manufac-
turer’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 ex-
penses 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 specied 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. Antunes 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 war-
ranty.
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 consequen-
tial or incidental damages for the breach or delay in performance of this warranty.
®
Corporate Headquarters
Carol Stream, IL, USA
Phone: [phone]
Toll Free: +1.800.253.2991
Fax: + 1.(630).784-1650
China Facility
Suzhou, China
Phone: [phone]
Fax: [phone]
India Facility
Chennai, India
Phone: [phone]
Fax: [phone]