The Miracle Steamer produces steam using
plain tap water for quick heating and reconstituting of food items. Simple push-button
action delivers a fully adjustable impulse
of steam. Because the amount of steam is
consistent, it removes the guesswork and
produces a uniform finished product from one
operator to the next.
This manual provides the safety, installation,
and operating procedures for the Miracle
Steamer. We recommend that all information
contained in this manual be read prior to
installing and operating the unit.
The Miracle Steamer is manufactured from the
finest materials available and is assembled
to Roundup’s strict quality standards. This
unit has been tested at the factory to ensure
dependable trouble-free operation.
WARRANTY INFORMATION
SERVICE/TECHNICAL
ASSISTANCE
If you experience any problems with the
installation or operation of your unit, contact
your local Roundup Authorized Service Agency.
Fill in the information below and have it
handy when calling your Authorized Service
Agency for assistance. The serial number is on
the specification plate located on the rear of
the unit.
Purchased From
Date of Purchase
Model Number
IMPORTANT
A.J. Antunes & Co. reserves the right
to change specifications 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.
Please read the full text of the Limited
Warranty in this manual.
If the unit arrives damaged, contact the carrier immediately and file a damage claim with
them. Save all packing materials when filing a
claim. Freight damage claims are the responsibility of the purchaser and are not covered
under warranty.
The warranty does not extend to:
• Damages caused in shipment or damage as result of improper use.
• Installation of electrical service.
• Normal maintenance as outlined in
this manual.
• Malfunction resulting from improper
maintenance.
• Damage caused by abuse or careless
handling.
• Damage from moisture into electrical
components.
• Damage from tampering with, removal
of, or changing any preset control or
safety device.
Serial Number
Manufacturing Number
Use only genuine Roundup replacement parts
in this unit. Use of replacement parts other
than those supplied by the manufacturer will
void the warranty. Your Authorized Service
Agency has been factory trained and has a
complete supply of parts for this unit.
Visit www.ajantunes.com or contact the factory at 1-630-784-1000 to locate your nearest
Authorized Service Agency.
Refer to the service agency directory packaged
with your manual and fill in the information
below.
Authorized Service Agency
Name
Phone Number
Address
2
P/N 1010984 Rev. D 03/12
Page 3
IMPORTANT SAFETY
INFORMATION
Use the following guidelines for safe operation of the unit.
• Read all instructions before using
equipment.
• For your safety, the equipment is furnished with a properly grounded cord
connector. Do not attempt to defeat
the grounded connector.
• Install or locate the equipment only
for its intended use as described in
this manual. Do not use corrosive
chemicals in this equipment.
• 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.
• This equipment should be serviced by
qualified personnel only. Contact your
nearest Authorized Service Agency for
adjustment or repair.
• Do not block or cover any openings on
the unit.
• Do not immerse cord or plug in water.
• Keep cord away from heated surfaces.
• Do not allow cord to hang over edge
of table or counter.
• Turn the power off, unplug the power
cord, and allow unit to cool down
before performing any service or
maintenance on the unit.
• The procedures in this manual may
include the use of chemical products.
These chemical products will be
highlighted with bold face letters followed by the abbreviated HCS (Hazard
Communication Standard). See Hazard
Communication Standard manual for
the appropriated Material Safety Data
Sheets (MSDS).
• 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.
• All electrical connections must be in
accordance with local electrical codes
and any other applicable codes.
• Do not clean this appliance with a
water jet.
WARNINGS
Be advised of the following warnings when
operating and performing maintenance on
this unit.
• If the supply cord is damaged, it must
be replaced by the manufacturer or its
service agent or a similarly qualified
person in order to avoid a hazard.
• Do not modify the power supply cord
plug. if it does not fit the outlet, have
a proper outlet installed by a qualified
electrician.
• Do not use an extension cord with this
appliance.
• Electrical ground is required on this
appliance.
• Check with a qualified electrician if
you are unsure if the appliance is
properly grounded.
• If a chemical cleaner is used, be sure
it is safe to use on cast aluminum.
Observe all precautions and warnings
on product label.
• Inspection, testing, and repair of electrical equipment should only be performed by qualified service personnel.
• This equipment is to be installed to
comply with the basic plumbing code
of the Building Officials and Code
Administrators, Inc. (BOCA) and the
Food Service Sanitation Manual of the
Food and Drug Administration (FDA).
• 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 off. This
may have to be repeated several times
to ensure proper steaming characteristics by creating a thin layer of deposits
on the surface.
• Do not use a sanitizing solution or
abrasive materials. The use of these
may cause damage to the stainless
steel finish.
• 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 finish, 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:
• Always use soft, damp cloth for
cleaning, rinse with clear water
and wipe dry. When required,
always rub in direction of metal
polish lines.
• Routine cleaning should be done
daily with soap, ammonia detergent, and water.
• Stains and spots should be
sponged using a vinegar solution.
• Finger marks and smears should be
rubbed off using soap and water.
• Hard water spots should be
removed using a vinegar solution.
P/N 1010984 Rev. D 03/12
3
Page 4
SPECIFICATIONS
D
L
I
S
T
E
CUS
I
N
T
E
R
T
E
K
Model No.
MS-150
9100424
MS-250
9100432
9100433
9100439
Model &
Mfg. No.
A
MS-150
MS-155
Agency Approvals
A
T
T
I
I
O
N
N
A
S
C
US
L
I
S
L
D
I
D
S
E
T
E
T
CM
C
READY
B
Width
(A)
20 3/4"
(527 mm)
20 3/4"
(527 mm)
Depth
(B)
21 3/16"
(538 mm)
21 3/16"
(538 mm)
Height
(C)
8 13/32"
(214 mm)
8 13/32"
(214 mm)
MS-150
9100427
MS-250
9100434
Model &
Mfg. No.
MS-150
9100420
MS-150
9100423
9100425
MS-150
9100426
MS-150
9100428
MS-155
9100450
MS-155
9100452
MS-155
9100456
MS-155
9100458
20 3/4”
(527 mm)
20 3/4”
(527 mm)
21 3/16”
(538 mm)
21 3/16”
(538 mm)
VoltsWattsAmpsHertz
208330015.950/60
120180015.050/60
230330014.450/60
230330014.450/60
208330015.950/60
120180015.050/60
230330014.4
230330014.450/60
9 1/2"
(234 mm)
9 1/2”
(234 mm)
Plug
Description
6-20P, 20 Amp.,
250 Volt
NEMA 5-15P
15 Amp, 120 Volt
6-20P, 20 Amp.,
250 Volt
CEE 7/7
16 Amp. 250 Volt
6-20P, 20 Amp.,
250 Volt
NEMA 5-15P
15 Amp, 120 Volt
6-20P, 20 Amp.,
250 Volt
CEE 7/7
16 Amp. 250 Volt
4
P/N 1010984 Rev. D 03/12
Page 5
INSTALLATION
1. Remove the unit and all packing
materials from the shipping carton.
2. The unit should come with the items
listed below:
• Owner’sManual
• AuthorizedServiceAgencyDirectory
• InletHoseAssembly(MS-250only)
• SpatulaAssembly
NOTE: If any parts are missing or damaged, contact A.J. Antunes IMMEDIATELY
at 1-800-253-2991 or 1-630-784-1000.
3. Remove all packing materials and protective coverings from the unit.
4. 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. Wipe all surfaces of the unit with a
hot, damp cloth.
NOTE: Do NOT use a dripping wet cloth.
Wring out before use.
6. Assemble the Guard and Mounting
Bolt to the Spatula (Figure 2).
7. Install the Wire Trivet into the side
slots on the Spatula (Figure 2).
8. Re-install all removed parts.
When placing the unit into service, pay attention to the following guidelines:
Wire Trivet
Spatula
Drip Pan
Spatula Liner
Figure 1. Washing Parts
Bolt
Handle
Handle Guard
Figure 2. Assembling Handle
Wire Trivet
Spatula
WARNING
Be sure to follow all the precautions, procedures, and safety steps listed in the Important
Safety Information section of this manual.
WARNING
All electrical connections must be in accordance with local electrical codes and any other
applicable codes.
ELECTRICAL
Plug the power cord into the appropriate
power outlet. Refer to the specification plate
for the proper voltage.
1. Place the unit on a sturdy, level table
or other work surface.
2. Turn off the power.
3. Ensure that the line voltage corresponds to the stated voltage on the
units specification label and power
cord warning tag. If you are unsure of
your Line Voltage, contact an electrician.
4. Connect the unit to the power supply.
• Make sure power is off and the unit is
at room temperature.
• Do NOT block or cover any openings
on the unit.
• Do NOT immerse cord or plug in
water.
• Keep cord away from heated surfaces.
• Do NOT allow cord to hang over edge
of table or counter.
P/N 1010984 Rev. D 03/12
5
Page 6
READY
Tank Cover
Tank
Cold
Water
Flow
Flexible Nylon Braided
1/4 " I.D. Tubing (Not Supplied)
Shut Off Valve
(Not Supplied)
Worm
Clamp
Quick
Disconnect
Insert
Connect Quick
Disconnect
Insert Here
NOTE: The use of only one strainer is
acceptable instead of two.
Filter
Figure 3. Filling Water Tank
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.
MS-150 MODELS
The MS-150 models have a self-contained
water tank. To fill the self-contained water
tank:
1. Open the Tank Cover on top of the
unit (Figure 3).
NOTE: Make sure filter inside tank is
installed properly.
2. Pour in cold tap water. The tank will
hold approximately 3 quarts (2.81
liters).
3. Close the Tank Cover.
NOTE: Do NOT overfill the unit’s water
tank. Only fill the tank to 90% full.
MS-250 MODELS
The MS-250 models 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 off the water valve (not supplied)
that provides 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).
Optional Water Pressure Regulator
with Strainer (P/N 7000314)
Inlet Hose & Strainer
Assy. (Supplied)
Figure 4. Connecting Water Supply (MS-250 Only)
NOTE: A Water Pressure Regulator must
first be installed (Figure 4). Failure to do
so will result in poor steaming and possible flooding. For a single steamer, use
Water Pressure Regulator P/N 7000314.
For two adjacent steamers, use Water
Pressure Regulator P/N 7000235.
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 flow. 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, you must
relieve the existing pressure by pressing the white 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 fitting at the rear of the unit until
it clicks (Figure 4).
CAUTION
Water pressure must not exceed 30 psi (2.1
kg/cm2 or 207 kPa). Higher water pressures
may cause poor performance or flooding.
To reduce water pressure, install a water
pressure regulator, and set water pressure to
20–25 psi (1.4–1.7 kg/cm2 or 138–172 kPa).
6
P/N 1010984 Rev. D 03/12
Page 7
READY
UP DOWN
POWER
PROGRAM
SINGLE SHOT
START/STOP
Ready Light
Message
Display
Single Shot
Button
Operate
Button
Power
Switch
Figure 5a. Operating Controls
(All Units Except Mfg. Nos.
9100427 & 9100434)
Ready Light
Message
Display
Operate
Button
Power
Switch
Figure 5b. Operating Controls
(Mfg. Nos. 9100427 & 9100434)
OPERATING INSTRUCTIONS
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 flashing 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 and set the product to be steamed onto the Spatula.
3. Push the Spatula fully into the
steamer.
4. Steam the product by pressing either
the Single Shot button for a single
burst or the Operate button for a
timed cycle.
NOTE: Mfg. Nos. 9100427 and 9100434 do
NOT have the Single Shot function.
5. Remove the steamed product.
WARNING
To avoid injury, be careful when pulling the
spatula out from the unit. Be sure to allow
steam to escape before putting hands or
face over the steamer.
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 setting (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 flooding,
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.
1. Turn the unit on. The unit displays the
factory programmed Total Cycle Time
in minutes and seconds.
2. Press and release
control from OPERATION to PROGRAM
mode.
3. To change the Total Cycle Time in minutes, press ▲ or ▼ to change the time.
to change the
4. Press and release again, and press
▲ or ▼ to change the Total Cycle
Time in seconds.
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.
6. Press and release
and then press
▲ or ▼ to change the SHO in seconds.
7. Press and release
again and press
▲ or ▼ to change the SHO in minutes.
8. Press and release
again and
“H2O” will be displayed.
9. To change the H2O (Steam Shot time),
press and release the Program button
again to display the setting. Use▲ or
▼ to increase or decrease the time.
10. Press the Single Shot or Operate buttons to store the changes, exit the
PROGRAM Mode, and initiate the
cooking cycle.
IMPORTANT: 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) =
MS-150: 1_00
MS-250: 0_70
(Range: 0_10 second to 2_50)
IMPORTANT: 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: The Single Shot 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.
P/N 1010984 Rev. D 03/12
7
Page 8
HI-LIMIT RESET BUTTON
READY
A hi-limit thermostat turns off 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
6). If the unit requires continuous resetting,
contact your Authorized Service Agency.
STATUS INDICATOR LEDS
CAUTION
Do not use a sanitizing solution or abrasive
materials. The use of these may cause damage to the stainless steel finish.
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.
Hi-Limit
Reset Button
Power Cord
Cap
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 off, indicates that the unit is satisfied.
Green (H2O): When lit, indicates that 24 VAC
is being supplied to operate the water pump.
This LED is only lit for approximately 1 second.
FAULT CODES
When the programming parameters for
Minutes, Seconds, SHO, or H2O have been
inadvertently changed below or above their
limits, the unit displays the “ERR” fault code.
If this code appears, clear these settings using
the procedure below:
1. Turn the unit off.
2. Press and hold the ▲ and ▼ buttons
simultaneously.
3. Turn the unit on while continuing to
hold the ▲ and ▼ 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.
NOTE: It is recommended that the SHO
and H2O settings be adjusted to the
recommended settings shown in the
Programming section of this manual.
WARNING
Turn the power off, unplug the power cord, and
all the unit to cool down before performing
any service or maintenance.
WARNING
Be sure to follow all the precautions, procedures, and safety steps listed in the Important
Safety Information section of this manual.
DAILY MAINTENANCE
1. Turn the power off, unplug the power
cord, and allow the unit to cool down
before proceeding.
2. Check the Water Pressure Regulator
gauge (MS-250 only) and verify that
it reads 20–25 psi (1.4–1.7 kg/cm2
or 138–172 kPa). If not, adjust the
water pressure as described in the
Installation section of this manual.
Check the rear water Quick Disconnect
Fitting and Hose Clamp for leakage.
Tighten clamps or replace parts if
needed.
3. Remove the Spatula, Liner, Drip Pan,
Top Cover, and Steam Vent (Figure 7).
4. Wash items in hot, soapy water and
then rinse and wipe dry.
5. Wipe down the food compartment
and the entire exterior of the unit with
a clean, hot, damp cloth (not dripping
wet) and wipe dry.
6. Reinstall the Steam Vent first, followed
by the remaining items.
NOTE: Failure to properly clean and dry
the above mentioned items prior to reassembling may result in the accumulation
of water/moisture overnight. This may
lead to permanent damage of the equipment’s finish and its accessories. This
damage is not covered by warranty.
NOTE: Frequency of cleaning is determined by water conditions, usage and
water filtration systems.
Figure 6. Hi-Limit Reset Button
(MS-150 shown)
Spatula
Spatula Liner
Steam Vent
Top
Cover
Drip Pan
Figure 7. Daily Cleaning–MS-150
8
P/N 1010984 Rev. D 03/12
Page 9
MONTHLY MAINTENANCE
The Miracle Steamer utilizes an open steam
Generator. Water sprayed onto the Generator
surface flashes into steam immediately,
but the minerals in the water 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 efficiency
and excessive moisture (wet steam), which
will eventually severely hinder the steaming
action.
CLEANING STEAM GENERATOR
Generator
Cover
Diffuser
Generator
Wing Nut
Water Tank Filter
Filter Stem
Tank Door
Bottom
Hole
of Water
Tank
1. Turn the power off, 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 Diffuser (Figure 8). 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 8). Remove the
loose buildup, wipe the Generator
with a clean, damp cloth, and reassemble the unit.
NOTE: If deposits are still excessive and/
or difficult 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.
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. Using a sponge or a dry towel,
remove the delimer solution from the
Generator surface, then rinse with
clean water.
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 off. If necessary,
repeat this process to formulate a thin coating
of calcium/mineral deposits.
READY
Steam Ports
(26 vertical and
2 horizontal)
Figure 8. Monthly Cleaning
In soft water areas, it may be necessary 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 Single Shot button several times
to operate the steamer. This purges any
remaining delimer residue from the
Generator surface.
11. Turn the power off, reinstall all parts
and accessories, and return the unit to
service.
Access
Cover
with Tank
(dotted line)
Figure 9. Water Tank Filter
WATER TANK FILTER (MS-150 ONLY)
The Water Tank Filter (Figure 9) is used to prevent solids or food products from entering and
damaging the water pump. Inspect and clean
the Filter monthly or more regularly using the
following procedure:
NOTE: The water level should be very low
or near empty.
1. Turn the power off, unplug the power
cord, and allow the unit to cool down
before proceeding.
2. Open the Tank Door (Figure 9).
3. Remove the Filter, located inside the
tank, by pulling it upwards and out of
the bottom hole.
4. Clean the Filter by running it under tap
water. Replace the Filter if the screen is
torn or damaged.
5. Reinstall the Filter Stem into the bottom hole of the tank (Figure 9).
6. Fill the Water Tank, close the Tank Door,
and test the unit.
NOTE: Do NOT overfill the unit’s water
tank. Only fill the tank to 90% full.
P/N 1010984 Rev. D 03/12
9
Page 10
WATER STRAINER (MS-250 ONLY)
The Water Strainer prevents foreign debris
from reaching the water line and getting into
the food or damaging the unit’s solenoid. The
strainer 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 using the following
steps:
1. Shut off the water supply valve to the
unit, unscrew the clear, plastic Strainer
Cup and carefully remove the Mesh
Screen (Figure 10).
2. At the sink, gently flush 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 clear,
plastic cup and confirm 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 flow.
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).
Tubing
O-ring
Strainer Cup
Figure 10. Inlet Hose Assembly
Mesh
Screen
Male Quick
Disconnect Insert
CAUTION
Water pressure must not exceed 30 psi (2.1
kg/cm2 or 207 kPa). Higher water pressures
may cause poor performance or flooding.
To reduce water pressure, install a water
pressure regulator, and set water pressure to
20–25 psi (1.4–1.7 kg/cm2 or 138–172 kPa).
10
P/N 1010984 Rev. D 03/12
Page 11
TROUBLESHOOTING
WARNING
To avoid possible personal injury and/or damage to the unit, inspection, test, and repair of electrical equipment should be performed by qualified
service personnel. The unit should be unplugged when servicing, except when electrical tests are required. Use extreme care during electrical circuit
tests. Live circuits will be exposed. If the troubleshooting steps listed below do not solve your machine’s problem, contact an Authorized Service
Agency for further assistance.
ProblemPossible CauseCorrective Action
Control Display is blank (power is on
but indicator light is off).
Control Display is blank (power is on
and indicator light is on).
Unit does not heat up (Control Display
is on).
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.Inspect electrical wire, plug, and receptacle.
The main electrical panel circuit breaker is off or has
been tripped.
Switch is inoperable.Contact your maintenance person or Authorized
Control Board is inoperableContact your maintenance person or Authorized
Transformer is inoperable.
Loose, burnt, or broken wires in circuit.
Hi-Limit Thermostat is tripped or inoperable.Reset the Hi-Limit Thermostat according to the
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.
Pinhole leak in rubber hoses (MS-150).Replace hoses.
Loose or damaged water line tubes and/or fittings
inside electrical housing.
adjusted/changed improperly.
Reset circuit breaker. Contact your maintenance person or Authorized Service Agency if it trips again.
Service Agency for service.
Service Agency for service.
Operations section of this manual. If the Hi-Limit
Thermostat requires continuous resetting, contact
your Authorized Service Agency for service.
Turn the unit off, allow it to cool to room temperature, and then restart. Contact your maintenance
person or Authorized Service Agency if the condition
repeats.
Tighten or replace tubes and/or fittings.
Reset the Control Board as described in the
Programming section of this manual. See Fault
Codes.
P/N 1010984 Rev. D 03/12
11
Page 12
TROUBLESHOOTING (continued)
ProblemPossible CauseCorrective 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 floods overnight and/or continues
to steam even when in idle mode.
Water Line Valve is closed (MS-250).Check that the Water Line Valve is open.
Filter Strainer is restricted.Check and clean the Filter Strainer as described in
Quick Disconnect is not fully engaged at rear of the
unit or is damaged (MS-250).
Low or no water pressure in the water line (MS-250). Remove the Quick Disconnect Insert from the rear
Improper water pressure to unit (MS-250).Verify that a Water Pressure Regulator is installed
Unit is not being cleaned properly.Clean unit daily and monthly as described in the
Programming and/or SHO, H2O values were adjusted/
changed improperly.
Insufficient or excessive calcium/mineral deposits on
the Generator surface.
Generator surface is bare.Generator surface must have a thin calcium/
Generator Steam Ports are restricted.Clean the Steam Ports as described in the
Generator Cover is warped or loose.Verify that the Generator Cover Wing Nut is tight.
Generator Diffuser is missing.Install Generator Diffuser or replace if missing.
Generator surface temperature is too low.Verify Generator surface temperature to be 380–
Water pressure is too high (MS-250).Verify that the Water Pressure Regulator is set to
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 (MS-250).
Solenoid Valve is installed incorrectly (MS-250).If the Solenoid Valve was replaced, verify that the
There is no pre-strainer or filter on the water line just
before the unit (MS-250).
the Maintenance section of this manual.
Remove and reengage the Quick Disconnect firmly
until a click is heard. Replace if damaged.
of the unit. While holding over an empty cup, press
the white plastic tip. Strong, steady water flow
should be noted. If so, reengage firmly into unit. If
not present, or pressure is low, contact your maintenance person or plumber.
and set to 20–25 psi.
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.
mineral coating for proper steaming. Refer to the
Maintenance section of this manual.
Maintenance section of this manual.
If noticeable steam escapes around the Generator
Cover, replace the cover.
420°F (193–215°C).
20–25 psi. Adjust accordingly.
Reprogram the SHO and H2O values as described in
the Programming section of this manual.
Attempt to flush 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 Authorized Service Agency.
“IN” and “OUT” labels on the valve correspond to
the water flow.
Equipment was supplied with a strainer. If
missing, install strainer.
12
P/N 1010984 Rev. D 03/12
Page 13
REPLACEMENT PARTS
79
39
MS-150/250
77
73
64
76
3
15
75
36
57
54
10
16
(For Mfg. #9100427
& 9100434 Only)
18
54
21
45
17
20
57
54
41
42
7
6
24
P/N 1010984 Rev. D 03/12
8
66a
(For Mfg. #9100427
& 9100434 Only)
66b
READY
62
78
65
13
12
70
38
74
13
Page 14
REPLACEMENT PARTS (continued)
43
31
32
33
23
55
28
46
72
69
49
48
67
49
71
51
57
55
37
68
19
55
25
59
60
4
49
43
46
2
56
56
43
1
9
55
56
26
(For Mfg. #9100427
& 9100434 only)
27
READY
READY
READY
34
MS-150 SERVICE COMPARTMENT
14
P/N 1010984 Rev. D 03/12
Page 15
REPLACEMENT PARTS (continued)
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
22
55
55
46
37
2
47
26
(For Mfg. #9100427
& 9100434 only)
READY
READY
READY
35
40
MS-250 SERVICE COMPARTMENT
P/N 1010984 Rev. D 03/12
15
Page 16
REPLACEMENT PARTS (continued)
Item Part No. Description Qty. Item Part No. Description Qty. Item Part No. Description Qty.
Equipment manufactured by Roundup Food Equipment Division of A.J. Antunes & Co. has been constructed of the finest 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 first 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 specified 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.
If shipment is damaged in transit, the purchaser should make a claim directly upon the carrier. Careful inspection should be made of the
3.
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 FITNESS 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.
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