Delfield Taco Bueno User manual

Original Instructions
Installation, Operation and Maintenance Manual
This manual is updated as new information and models are released. Visit our website for the latest manual.
Part Number: 9291465 06/17
Taco Bueno

Safety Notices
nWarning
Read this manual thoroughly before operating, installing
or performing maintenance on the equipment. Failure
to follow instructions in this manual can cause property
damage, injury or death.
DANGER
Failure to disconnect the power at the main power supply
disconnect could result in serious injury or death. The
power switch DOES NOT disconnect all incoming power.
DANGER
Donotinstalloroperateequipment thathasbeenmisused,
abused, neglected, damaged, or altered/modified from
that of original manufactured specifications.
DANGER
All utility connections and fixtures must be maintained in
accordance with local and national codes.
DANGER
Serious injury or death can occur from inhaling high
concentrations of refrigerant vapors. These vapors also
reduce oxygen levels in confined areas. Contact with
liquid can cause frostbite. All containers, equipment
and hoses are under high pressure. Do not puncture or
damage these components.
nWarning
Use caution when handling metal surface edges of all
equipment.
nWarning
This appliance is not intended for use by persons
(including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge,
unless they have been given supervision concerning use
of the appliance by a person responsible for their safety.
Do not allow children to play with this appliance.
nWarning
Do not store or use gasoline or other flammable vapors
or liquids in the vicinity of this or any other appliance.
Never use flammable oil soaked cloths or combustible
cleaning solutions, for cleaning.
nWarning
This product contains chemicals known to the State of
California to cause cancer and/or birth defects or other
reproductive harm. Operation, installation, and servicing
of this product could expose you to airborne particles
of glasswool or ceramic fibers, crystalline silica, and/
or carbon monoxide. Inhalation of airborne particles
of glasswool or ceramic fibers is known to the State of
California to cause cancer. Inhalation of carbon monoxide
is known to the State of California to cause birth defects
or other reproductive harm.
nWarning
Authorized Service Representatives are obligated to follow
industry standard safety procedures, including, but not
limited to, local/national regulations for disconnection
/ lock out / tag out procedures for all utilities including
electric, gas, water and steam.
nWarning
DO NOT touch refrigeration lines inside units; some may
exceed temperatures of 200°F (93.3°C).
nWarning
Do not damage the refrigeration circuit when installing,
maintaining or servicing the unit.
,Caution
Maintenance and servicing work, other than cleaning as
described in this manual, must be done by an authorized
service personnel.
Notice
Proper installation, care and maintenance are essential
for maximum performance and trouble-free operation of
your equipment. Visit our website www.mtwkitchencare.
com for manual updates, translations, or contact
information for service agents in your area.

Part Number: 9291465 06/17 3
Section 1
General Information
Serial Number Location ..................................................................................................... 5
Warranty Information........................................................................................................ 5
Regulatory Certifications ................................................................................................... 5
Taco Bueno Dual Line Drawings ......................................................................................... 6
Section 2
Installation
Location ............................................................................................................................ 8
Clearance Requirements.................................................................................................... 8
Dimensions ....................................................................................................................... 8
Electrical Service ............................................................................................................... 9
Voltage ............................................................................................................................ 9
Rated Amperages, Horsepower & Voltage Chart ............................................................9
Drain Connections ............................................................................................................. 9
Refrigeration ..................................................................................................................... 9
Assembly Installation (By General Contractor)................................................................. 10
Mechanical Detail............................................................................................................ 11
Section 3
Operation
Hot Food Table Operation................................................................................................ 13
Operation ...................................................................................................................... 13
Cold Food Section Operation ........................................................................................... 14
Refrigerator Evaporator Fan Operation.........................................................................14
Control Assembly .......................................................................................................... 14
Changing Display from Fahrenheit to Celsius on ERC112 Control.................................16
Section 4
Maintenance
Responsibility.................................................................................................................. 17
Interior Cleaning.............................................................................................................. 18
Gaskets.......................................................................................................................... 18
Preventing Blower Coil Corrosion .................................................................................18
Exterior Cleaning ............................................................................................................. 18
Drain.............................................................................................................................. 18
Doors/Hinges .................................................................................................................. 18
Cleaning the Condenser Coil............................................................................................ 18
Section 5
Service Information
Hot Food Table Troubleshooting Chart............................................................................. 19
Alarm Alert Information .................................................................................................. 19
Steam Table Plumbing ..................................................................................................... 20
Replacement Parts .......................................................................................................... 21
Replacement Part Drawings............................................................................................. 22
Table of Contents

4 Part Number: 9291465 06/17
Table of Contents (continued)
Section 6
Wiring Diagrams
Cold Food Section Electrical Schematic ............................................................................ 24
Hot Food Section 3 Heater Electrical Schematic ............................................................... 25
Hot Food Section 4 Heater Electrical Schematic ............................................................... 26
Breaker Panel .................................................................................................................. 26

Part Number: 9291465 06/17 5
Serial Number Location
Taco Bueno Dual Line serial number locations are as follows:
• Compressor housing in refrigerated base
• Underside of hot food table
• Behind electrical panel access
Always have the serial number of your unit available
when calling for parts or service.
Warranty Information
Visit www.delfield.com/warranty to:
• Register your product for warranty.
• Verify warranty information.
• View and download a copy of your warranty.
Regulatory Certifications
• National Sanitation Foundation (NSF)
• Underwriters Laboratories (UL)
Section 1
General Information

6 Part Number: 9291465 06/17
General Information Section 1
Taco Bueno Dual Line Drawings

Part Number: 9291465 06/17 7
Section 1 General Information

8 Part Number: 9291465 06/17
DANGER
Installation must comply with all applicable fire and
health codes in your jurisdiction.
DANGER
Use appropriate safety equipment during installation and
servicing
nWarning
Remove all removable panels before lifting and installing.
,Caution
When adding any item verify the location of the
refrigeration lines on wrapped rail units. A refrigeration
leak in a rail may be irreparable or extremely difficult and
costly to repair.
Location
nWarning
To avoid instability the installation area must be capable
of supporting the combined weight of the equipment
and product. Additionally the equipment must be level
side to side and front to back.
nWarning
This equipment is intended for indoor use only. Do not
install or operate this equipment in outdoor areas.
,Caution
Do not position the air intake vent near steam or heat
exhaust of another appliance.
The location selected for the equipment must meet the
following criteria. If any of these criteria are not met, select
another location.
• Units are intended for indoor use only.
• The location MUST be level, stable and capable of
supporting the weight of the equipment.
• The location MUST be free from and clear of combustible
materials.
• Equipment MUST be level both front to back and side to
side.
• Position the equipment so it will not tip or slide.
• Recommended air temperature is 50° - 100°F (10° - 38°C).
• Proper air supply for ventilation is REQUIRED AND
CRITICAL for safe and efficient operation. Refer to
Clearance Requirements chart on page 8.
• Do not obstruct the flow of ventilation air. Make sure the
air vents of the equipment are not blocked.
• Do not install the equipment directly over a drain. Steam
rising up out of the drain will adversely affect operation,
air circulation, and damage electrical / electronic
components.
Clearance Requirements
DANGER
Minimum clearance requirements are the same for
noncombustible locations as for combustible locations.
The flooring under the appliance must be made of a
noncombustible material.
DANGER
Risk of fire/shock. All minimum clearances must be
maintained. Do not obstruct vents or openings.
Front & Back
1.00” (25mm)
• Keep the vents clean and free of obstruction.
• The factory installed legs must be used and not removed.
Dimensions
Line Length Depth Height
Taco Bueno Dual
Line
216.00”
(549cm)
46.00”
(117cm)
71.44”
(181cm)
Section 2
Installation

Part Number: 9291465 06/17 9
Section 2 Installation
Electrical Service
DANGER
Check all wiring connections, including factory terminals,
before operation. Connections can become loose during
shipment and installation.
DANGER
Copper wire suitable for at least 167°F (75°C) must be
used for power connections.
nWarning
This appliance must be grounded and all field wiring must
conform to all applicable local and national codes. Refer
to rating plate for proper voltage. It is the responsibility of
the end user to provide the disconnect means to satisfy
the authority having jurisdiction.
VOLTAGE
All electrical work, including wire routing and grounding,
must conform to local, state and national electrical codes.
The following precautions must be observed:
• The equipment must be grounded.
• A separate fuse/circuit breaker must be provided for each
unit.
• A qualified electrician must determine proper wire size
dependent upon location, materials used and length of
run (minimum circuit ampacity can be used to help select
the wire size).
• The maximum allowable voltage variation is ±10% of the
rated voltage at equipment start-up (when the electrical
load is highest).
• Check all green ground screws, cables and wire
connections to verify they are tight before start-up.
RATED AMPERAGES, HORSEPOWER & VOLTAGE CHART
Taco Bueno Dual Line Electrical Rating:
120/208Y or 120/240Volts, 60Hz, 3Ph, 4 Wire, 200A
Component Amps HP Voltage, Hertz,
Phase
Watts
Cold Food
Table 10.0 1/4 115, 60, 1 1150
4 Heater 68.0/75.0 NA 120/208Y-240,
60, 1 14,000
3 Heater 51.0/57.0 NA 120/208Y-240,
60, 1 10,500
Drain Connections
nWarning
If a refrigerated base does not have a condensate
evaporator supplied, you must connect the condensate
line to a suitable drain. Otherwise, water will collect on
the floor, causing a potentially hazardous situation.
nWarning
Moisture collecting from improper drainage can create a
slippery surface on the floor and a hazard to employees.
It is the owner’s responsibility to provide a container or
outlet for drainage.
Refrigeration
Component BTU/Hour
Capacity
Heat of
Rejection
R404A
Charge
Base Rail Base Rail
Cold Food
Table
2200 1432 461 810 16oz

10 Part Number: 9291465 06/17
Installation Section 2
Assembly Installation (By General Contractor)
Cold Food Table Hot Food Table
1. Place hot food table into the proper location.
2. Screw cold food table feet all the way in to adjust work
height to its lowest point.
3. Place cold food table next to the hot food table.
4. Make electrical quick connect connections. Follow the
color-coding on the quick connects. Make certain that
the quick connect cables are not pinched when joining
the units together. Double check that the quick connects
are fully snapped together.
5. Level the cold food table.
6. Level the hot food table to the cold food table.
7. Fasten the cold food table to the hot food table using the
supplied fastening screws.
NOTE: Do not drill any additional holes into the cold rail.
8. Plumbing contractor to supply (1) hot water line for
steam tanks located in chase.
9. Plumbing contractor to plumb drains to floor sinks.
10. Electrical contractor to supply permanent electrical
power to the breaker panel on unit. 2” conduit is
supplied through chase.
11. When permanent electrical power and water is supplied
to the unit, the unit will be ready for the Setup/Startup.
NOTE: Equipment is supplied with a 200 amp panel;
120/208Y or 120/240Volts, 60 cycle, 3-phase, 4-wire.

Part Number: 9291465 06/17 11
Section 2 Installation
Mechanical Detail

12 Part Number: 9291465 06/17
DANGER
The on-site supervisor is responsible for ensuring that
operators are made aware of the inherent dangers of
operating this equipment.
DANGER
Do not operate any appliance with a damaged cord or
plug. All repairs must be performed by a qualified service
company.
DANGER
Never stand on the unit! They are not designed to hold
the weight of an adult, and may collapse or tip if misused
in this manner.
DANGER
Keep power cord AWAY from HEATED surfaces. DO NOT
immerse power cord in water. DO NOT let power cord
hang over edge of table or counter.
nWarning
Do not contact moving parts.
nWarning
All covers and access panels must be in place and properly
secured, before operating this equipment.
nWarning
Do not use electrical appliances inside the food storage
compartment of this appliance.
nWarning
The operator of this equipment is solely responsible
for ensuring safe holding temperature levels for all
food items. Failure to do so could result in unsafe food
products for customers.
nWarning
Overloading shelves can damage equipment or cause
bodily injury.
nWarning
Damp or wet hands may stick to cold surfaces.
nWarning
Do not block the supply and return air grills or the air
space around the air grills. Keep plastic wrappings,
paper, labels, etc. from being airborne and lodging in
the grills. Failure to keep the air grills clear will result in
unsatisfactory operation of the system.
,Caution
Do not throw items into the storage area. Failure to
heed this recommendation could result in damage to the
interior of the cabinet or to the blower coil.
Notice
Units with pans should be operated with pans in place.
Operating the unit without all pans in place will lower
efficiency and may damage the unit.
Notice
Continuous opening and closing of the doors will hamper
the unit’s ability to maintain optimum refrigeration
temperature. Top section is not intended for overnight
storage. Product should be removed from pans. Pans can
remain in unit while empty.
Section 3
Operation

Part Number: 9291465 06/17 13
Section 3 Operation
Hot Food Table Operation
• The hot food table keeps WATER at the correct
temperature of 195°F. Hot food tables consist of a
stainless steel table with heating elements and a water
well.
• The hot food table controller monitors the hot food
table temperature and sounds an alarm if the water
temperature drops below 180°F.
• The auto water fill system automatically fills the water
well to the correct level. Ensure hot water is used.
OPERATION
1. Make sure the drain valve, located under the hot food
table, is closed. The inlet hot water valve should be
open.
2. Turn on the hot food table power switch. The table
begins to fill automatically after a 20-second delay. If
the table does not begin to fill, see the Troubleshooting
section.
From Water Well
Closed
To Floor Drain
3. Once the hot food table is full, make sure no water leaks
from the hot food table, plumbing or connections. If
water leaks from the hot food table, it may not maintain
food at the proper temperature, as it will require
constant refilling.
Alert LED
Water Temperature
Keypad
Digital Display
• When the water level reaches the lower probe, the
heating elements will turn on, and the hot food table
begins heating water. The “HEAT ON” light remains
on until the water temperature reaches 195º. The
“Heat On” light will cycle on and off with the heating
elements.
• When the water level reaches the upper probe, the
water shuts off. When the water drops below the
upper probe the water will fill until it again reaches
the upper probe.
Lower
probe
Upper
probe
4. Allow the water to heat to the correct temperature. The
set point temperature is 195°F and the temperature
range is 190°F to 200°F.
,Caution
DO NOT place product in the hot food table until the
controller displays the correct temperature.
• If the hot food table water temperature is below
180° or above 200°F, see the Troubleshooting section
immediately. DO NOT use the hot food table.
5. Check the water level throughout the day, even if you
have an auto water fill system. DO NOT rely on the hot
food table controller alarm to alert a problem.

14 Part Number: 9291465 06/17
Operation Section 3
Cold Food Section Operation
Refrigerated Base
The refrigerated base is designed to maintain a continuous
product operating temperature of 36ºF to 40ºF (2°C to 4°C)
for storage. The refrigerated base should always be on.
Rail
The rail is controlled by a timer. The timer is located behind
the louver. Upon installation set timer to correct local time
and turn rail switch on. The timer is factory set to shut
down at 12 am and turn on at 4:30 am. The power switch
for the rail is recessed in the front. After installation the rail
power switch is unnecessary, the rail will run via the timer.
Temperature ranges for the raised rail are 33°F to 41°F. If
the main power is turned off or there is a loss of power for
longer than seven days the timer will have to be reset.
Cold Pan Start-UP
1. Clean and remove all water from cold wells. Wipe out
inside of cold well with sanitizer. Note: All water must
be removed for unit to work properly! Do not use sharp
tools in cold well!
2. The rail with empty pans and lids should be on for two
hours before filling with food.
3. Food should be placed in the unit pre-cooled to 40°F
(4°C). Fill pan to 2.0” (5cm) below top of cold pan. In
some applications, a gradual warming of product may
occur, particularly at the exposed top of the products.
Stirring or rotation of the product is necessary to
maintain overall temperature.
4. Warming of food product can occur very quickly outside
of the unit. When loading or rotating the product, avoid
leaving food items in a non-refrigerated location for any
length of time to prevent warming or spoilage.
5. To ensure product quality product must be rotated
every four hours. Always place covers on pans when not
serving to maintain temperatures.
6. Air from air vents can affect the temperature in the cold
pans. Add deflectors to vents to redirect airflow.
7. Frost will appear on the inside of the rail during normal
operation.
Rail Daily Shutdown
1. Remove all pans from rail when timer is activated. Place
food product in refrigerated base or walk-in cooler.
REFRIGERATOR EVAPORATOR FAN OPERATION
When the refrigerator is initially powered up or immediately
following a power outage the unit will begin cooling after a
3-6 minute delay. During normal operation the evaporator
fan pulses independently of the compressor as dictated by
the controller as follows:
• During the cooling mode, compressor and evaporator fan
run simultaneously.
• During the compressor off mode, evaporator fan pulses
three minutes on and three minutes off.
• During an actual defrost event other than the off-cycle
defrost, compressor stays off but the evaporator fan runs
continuously.
Cooling Cycle Defrost Cycle
Compressor On Compressor Off Compressor Off
Evaporator Fan On Evaporator Fan Cycles
On 3-Min,
Off 3-Min
Evaporator Fan On
CONTROL ASSEMBLY
• Controls are located in the mechanical section behind a
louvered panel.
• The rail power switch is accessible through a hole in the
louvered panel.
Notice
Rail temperature displayed is for refrigeration set point
purposes only. Display does not reflect air or product
temps in unit.
Unit Power Switch
Rail
Temperature
Control
Rail Power
Switch
Base Temperature
Control
ERC112 Temperature Control
V
V

Part Number: 9291465 06/17 15
Section 3 Operation
At Start Up
1. At initial start-up or anytime power is disconnected, then
reconnected to the unit, the control will go into defrost
mode.
2. The control will enter a DEFROST mode and the display
will read dEF. The compressor and condenser fan as well
as the evaporator fan will remain off until this initial
defrost is complete. This initial defrost cycle may take up
to 35 minutes to complete.
3. The display will continue to read dEF for an additional 30
minutes while the cooling cycle cools the box to the set
temperature.
4. Then the digital thermostat will display box temperature.
5. The temperature control will cycle the compressor,
evaporator fan motor and condenser fan motor to
maintain box temperature at the control setting. For
more information see Refrigerator Evaporator Fan
Operation on page 14.
Defrost
The temperature control also monitors the evaporator
temperature and will turn off the compressor and condenser
fan motor when needed to allow accumulated frost on the
evaporator to clear. During this defrost cycle, the digital
temperature display will read dEF. After the defrost cycle is
complete, the temperature control will return to a normal
cooling cycle, but the display will continue to read dEF until
the evaporator returns to normal cooling temperatures (up
to 30 minutes).
The electronic temperature controller monitors evaporator
temperature and compressor run time to determine the
proper time for a positive defrost cycle. A defrost cycle
can occur as often as every 60 minutes under extremely
heavy usage. It can last a minimum of 2 minutes. When the
controller enters the defrost mode the compressor is shut
off and will remain off until the evaporator coil temperature
exceeds 41°F (5°C) or the controller reaches a time limit of 75
minutes on a refrigerated unit.
Operation / Indication
Status Displayed Comments
Normal (°C) Temp. [°C] Unit depends on setting
(parameters in control)
Normal (°F) Temp. [°F]
Show set-point Temp.
Set to Defrost dEF / Temp Depends on setting
(parameters in control
or as chosen by upper
left button)
Sensor 1 defect E01 Air sensor
Sensor 2 defect E02 Coil sensor
Operation / Indication
Status Displayed Comments
High temperature alarm Hi Automatically switching
at 2 sec rate
Low temperature alarm Lo
Line voltage too hight uHi
Line voltage too low uLi
Control calls for cooling
for more than 24 hours
straight
LEA Time includes defrost.
Error will go away if the
control cycles off the
compressor or if the
power is shut off. If error
is on a cold pan it could
be related to a high
ambient temperature or
not shutting the rail off
nightly.
Press upper or lower right button.
• Display show actual set-point (blinking).
• If buttons untouched for 3 seconds returns to
normal.
• Increase set-point by pressing upper button. Max value
depends on parameters in control.
• Decrease set-point by pressing lower button. Min value
depends on parameters in control.
• If buttons untouched for 3 seconds returns to normal
and stores new set-point.
Press upper left button for 5 seconds.
• Start defrost.
Press lower left button for 5 seconds.
• Unit goes into stand-by mode.
• The display will read Off, then a period.
• Press the lower left button again for 5 seconds.
• The display will read On.
• The unit will then start up in the defrost mode, and
display will read dEF.
Temperature Alarm
The alarm will flash HI or LO 90 minutes after the unit has
reached its alarm temperature point or after any power
interruption if the temperature is above or below the alarm
set points.
• The high refrigerator temperature point is 50°F (10°C).
• The low refrigerator temperature point is 25°F (-4°C).

16 Part Number: 9291465 06/17
Operation Section 3
CHANGING DISPLAY FROM FAHRENHEIT TO CELSIUS ON
ERC112 CONTROL
1. Simultaneously hold the up and down arrows for
5 seconds to access menu for password protected
parameters.
2. Screen should temporarily flash PAS and then move to a
numeric screen.
3. Scroll to 187 using the up/down arrows and push the
stand-by button (lower left button) to enter.
4. Scroll to dis using the up/down arrows and push the
stand-by button (lower left button) to enter into the
display menu.
5. Scroll to CFu using the up/down arrows and push the
stand-by button (lower left button) to enter the display
unit menu.
6. -F should be displayed indicating Fahrenheit. Use the
down arrow to change it to -C for Celsius and hit the
stand-by button (lower left button) to enter the change.
7. Push the defrost button (upper left button) to move out
of the display unit menu.
8. Push the defrost button (upper left button) to move out
of the display menu and back to the normal display.
NOTE: For steps 7 and 8, display will return back to normal
display after 30 seconds of inactivity.

Part Number: 9291465 06/17 17
DANGER
It is the responsibility of the equipment owner to perform
a Personal Protective Equipment Hazard Assessment
to ensure adequate protection during maintenance
procedures.
DANGER
Failure to disconnect the power at the main power supply
disconnect could result in serious injury or death. The
power switch DOES NOT disconnect all incoming power.
DANGER
Disconnect electric power at the main power disconnect
for all equipment being serviced. Observe correct polarity
of incoming line voltage. Incorrect polarity can lead to
erratic operation.
nWarning
When using cleaning fluids or chemicals, rubber gloves
and eye protection (and/or face shield) must be worn.
nWarning
When cleaning interior and exterior of unit, care should
be taken to avoid the front power switch and the rear
power cord. Keep water and/or cleaning solutions away
from these parts.
nWarning
Never use sharp objects or tools to remove ice or frost. Do
not use mechanical devices or other means to accelerate
the defrosting process.
,Caution
Maintenance and servicing work other than cleaning as
described in this manual must be done by an authorized
service personnel.
Notice
Never use a high-pressure water jet for cleaning or hose
down or flood interior or exterior of units with water. Do
not use power cleaning equipment, steel wool, scrapers
or wire brushes on stainless steel or painted surfaces.
Responsibility
You are responsible for maintaining the equipment
in accordance with the instructions in this manual.
Maintenance procedures are not covered by the warranty.
Section 4
Maintenance
Maintenance Daily Weekly Monthly After Prolonged Shutdown At Start-Up
Interior X X X
Gasket X X X X
Exterior X X X
Drain X X X
Condenser Coil X X X

18 Part Number: 9291465 06/17
Maintenance Section 4
Interior Cleaning
The interior can be cleaned using soap and warm water. If
this isn’t sufficient, try ammonia and water or a nonabrasive
liquid cleaner.
GASKETS
Gaskets require regular cleaning to prevent mold and mildew
build up and also to retain the elasticity of the gasket. Clean
them with water and mild soap (not citrus based). Avoid full
strength cleaning products on gaskets as this can cause them
to become brittle and crack. Never use sharp tools or knives
to scrape or clean the gasket. Gaskets can be easily replaced
and do not require the use of tools or an authorized service
person. The gaskets are dart style and can be pulled out of
the groove in the door. Place gasket in warm water to make
the material more pliable for installation. Dry and press into
place.
PREVENTING BLOWER COIL CORROSION
To help prevent corrosion of the blower coil, store all acidic
items, such as pickles and tomatoes, in seal-able containers.
Immediately wipe up all spills.
Exterior Cleaning
Notice
Never use an acid based cleaning solution on exterior
panels! Many food products have an acidic content,
which can deteriorate the finish. Be sure to clean the
stainless steel surfaces of ALL food products.
Clean the area around the unit as often as necessary to
maintain cleanliness and efficient operation.
Wipe surfaces with a damp cloth rinsed in water to remove
dust and dirt from the outside of the unit. Always rub with
the “grain” of the stainless steel to avoid marring the finish.
If a greasy residue persists, use a damp cloth rinsed in a mild
dish soap and water solution. Wipe dry with a clean, soft
cloth.
Never use steel wool or abrasive pads for cleaning. Never use
chlorinated, citrus based or abrasive cleaners.
Stainless steel exterior panels have a clear coating that
is stain resistant and easy to clean. Products containing
abrasives will damage the coating and scratch the panels.
Daily cleaning may be followed by an application of stainless
steel cleaner which will eliminate water spotting and
fingerprints. Early signs of stainless steel breakdown are
small pits and cracks. If this has begun, clean thoroughly and
start to apply stainless steel cleaners in attempt to restore
the steel.
Wipe casters with a damp cloth to prevent corrosion.
Refrigerated cold pans need to be defrosted daily.
DRAIN
Each unit has a drain located inside the unit that removes
the condensation from the evaporator coil and routes it
to an external condensate evaporator pan. Each drain can
become loose or disconnected during normal use. If you
notice water accumulation on the inside of the unit, be sure
the drain tube is connected to the evaporator drain pan.
If water is collecting underneath the unit, make sure the
end of the drain tube is in the condensate evaporator. The
leveling of the unit is important as the units are designed to
drain properly when level. Be sure all drain lines are free of
obstructions.
Doors/Hinges
Over time and with heavy-use doors, the hinges may become
loose. If this happens, tighten the screws that mount the
hinge brackets to the frame of the unit. Loose or sagging
doors can cause the hinges to pull out of the frame, which
may damage both the doors and the hinges. In some cases
this may require qualified service agents or maintenance
personnel to perform repairs.
Cleaning the Condenser Coil
In order to maintain proper refrigeration performance, the
condenser fins must be cleaned of dust, dirt and grease
regularly. It is recommended that this be done monthly. If
conditions are such that the condenser is totally blocked
in a month, the frequency of cleaning should be increased.
Clean the condenser with a vacuum cleaner or stiff brush. If
extremely dirty, a commercially available condenser cleaner
may be required.
Failure to maintain a clean condenser coil can initially cause
high temperatures and excessive run times. Continuous
operation with a dirty or clogged condenser coil can result in
compressor failure. Neglecting the condenser coil cleaning
procedures will void any warranties associated with the
compressor and cost to replace the compressor.

Part Number: 9291465 06/17 19
Hot Food Table Troubleshooting Chart
Use the table below to find the appropriate troubleshooting procedure. If troubleshooting does not solve the problem, call
KitchenCare [phone].
Problem Possible Solutions
Auto water fill system does not begin to fill table • Make sure the power switch is on. There is a 20-second delay before the hot
food table starts filling.
• Make sure the drain valve is closed.
• Make sure the auto water fill valve is open.
Controller display is not on • Make sure the power switch and circuit breaker are on.
Water does not heat to 195ºF or takes longer than one
hour to heat
• Make sure your hot food table is filling with hot water.
• Check circuit breakers.
• Check and make sure the bypass valve is closed.
• Make sure the water is touching both probes.
• Make sure water probes are tight and free of debris.
• The heating element may need to be replaced. Call for service.
Too much water in table • Make sure the overflow drain is not clogged.
• Drain excess water. Then close the drain. If problem persists, call for service.
• Make sure water probes are tight and free of debris.
Alarm Alert Information
The digital control alarm will sound for two reasons.
1. Low temperature - When the measured temperature falls below the set point minus 1°F (179°F for the steam tables and
164°F for the tortilla shelves) the alarm will sound and the display will flash “Lo”. When the measured temperature rises
above the low temperature alarm set point plus 1°F (181°F for the steam tables and 166°F for the tortilla shelves) the
alarm will cease.
NOTE: The alarm can be canceled for 20 minutes by pressing the alarm reset button momentarily.
NOTE: Upon start-up there is a 60 minute alarm cancelation period allowing time for the unit to reach temperature.
2. Probe error - The display will read “Prb” and the alarm will sound, the heaters will be off during a probe error. This means
the probe needs to be cleaned or tightened, there is a wire loose on the probe holder, or a probe is shorted out by a metal
object, likely the probe cover.
Section 5
Service Information

20 Part Number: 9291465 06/17
Service Information Section 5
Steam Table Plumbing
1 1/2” ball valve
(3547609)
Strainer
(3517536) Solenoid coil
(3516053)
1/2” ball valve, supply
(3547241)
Check valve
(TBP60083)
1/2” ball valve, bypass
Solenoid valve
(3516042)
Filter assembly
Filter head (Everpure EV9272-41)
Filter cartridge (Everpure EV9692-31)
Pressure gauge
(3516558)
Pressure regulator
(TBP30029)
1/2” ball valve
(3547241)
1/2” ball valve
(3547241)