Pitco RTE14TB Service Manual
Installation, Operation, Maintenance,
and Service Manual
For The Taco Bell Rethermalizer
Model RTG14
NOTICES
There are three different types of notices that you should be familiar with, a NOTICE, CAUTION, and
WARNING. A NOTICE is a special note used to call attention to a particularly important point. CAUTION
is used to point out a procedure or operation which may cause equipment damage. The WARNING notice is
the most important of the three because it warns of an operation that may cause personal injury. Please
familiarize yourself with your new Rethermalizer before operating it and heed the notices throughout this
manual. The WARNINGS are listed below and on the following page for your review prior to operating the
unit.
FOR YOUR SAFETY
DO NOT store or use gasoline or other flammable vapors or
liquids in the vicinity of this or any other appliance.
WARNING: Improper installation, adjustment, alteration,
service or maintenance can cause property damage, injury
or death. Read the installation, operating and maintenance
thoroughly before installing or servicing this equipment.
TO THE PURCHASER
POST IN A PROMINENT LOCATION INSTRUCTIONS TO BE
FOLLOWED IN THE EVENT THAT AN OPERATOR SMELLS
GAS. OBTAIN THIS INFORMATION FROM YOUR LOCAL
GAS SUPPLIER.
SAFETY SAFETY SAFETY SAFETY SAFETY
WARNING
This appliance is equipped with a three prong (grounding) plug. This is for your
protection against shock hazard in the event of equipment malfunction. Always plug
the unit directly into a properly grounde d three-prong receptacle. DO NOT cut or
remove the grounding (third) prong.
WARNING
DO NOT use an open flame to check for gas leaks Keep all open flames away from the
Rethermalizer until the installation is complete.
WARNING
A Rethermalizer equipped with casters and a flexible power cord, must be connected
to the gas supply with a Quick-Disconnect device. This quick disconnect must
comply with ANSI Z24.41. To limit the movement of the unit without depending on
the connector or quick disconnect, a restrainin g cable must also be installed.
WARNING
There is an open gas flame inside the Rethermalizer. The unit may get hot enough to
set nearby materials on fire. Keep the area around the unit free from combustibles.
WARNING
Ensure that the Rethermalizer can get enough air to keep the flame burning correctly.
If the flame is starved for air it can give off a dangerous carbon monoxide gas.
Carbon Monoxide is a clear odorless gas that can cause suffocation.
WARNING
Carbon monoxide can build up if you block the flue. Blocking the flue will also
cause the unit to overheat. DO NOT obstruct the flow of combustion/ ventilation or
air opening around the Rethermalizer. Ensure that you meet the minimum clearances
specified in the installation instructions. Adequate clearance around the unit is
necessary for servicing and proper burner operation.
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE
SAFETY SAFETY SAFETY SAFETY SAFETY
SAFETY SAFETY SAFETY SAFETY SAFETY
WARNING
Wait 5 minutes before attempting to relight the pilot. This will allow for any gas in the
unit to dissipate.
WARNING
The power supply must be disconnected before servicing or cleaning the appliance.
WARNING
DO NOT supply the fryer with a gas that is not indicated on the data plate. If you need
to convert the fryer to another type of fuel, contact your dealer.
THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE
SAFETY SAFETY SAFETY SAFETY SAFETY
Table of Contents
Table of Contents
13 INSTALLATION
1322
Gas Line Conn
ection
134 Electrical Connection
14 INITIAL ADJUSTMENTS
142 Filling the Rethermalizer
1
46 Electronic Control Unit
22 DAILY OPERATING INSTRUCTIONS
22
2 Shutdown
23 DAILY CLEANING
Section Title Page
Safety Notice
List of Tables and Figures iii
i
Chapter 1: General Information and Installation
1-1
11 CHECKING YOUR NEW RETHERMALIZER 1-1
111 Check Your Order 1-1
12 ASSEMBLY AND LEVELING 1-2
121 Caster Installation and Adjustment
1-2
1-2
131 Installation Clearances 1-3
132 Gas Connection 1-3
1321 Fuel Types
1323 Quick Disconnect Gas Connection
1-3
1-3
1-4
1324 Fuel Supply Line Leak and Pressure Testing 1-4
133 Plumbing Connections 1-4
135 Ventilation and Fire Safety Systems
141 Visual Checks and Equipment Locations
1-4
1-5
1-7
1-7
1-8
143 Pilot Light System 1-8
1431 Pilot Flame Adjustment 1-9
144 Main Burner System 1-11
1441 Gas Line Requirements 1-12
1442 Burner Adjustment 1-12
145 Initial Cleaning 1-13
1-14
147 High Limit Switch 1-14
Chapter 2: Operating Instructions
21 FILLING THE RETHERMALIZER 2-1
211 Manual Operation of The Water Fill System
221 Start-Up and Use
2-1
2-1
i
2-2
2-2
2-2
2-3
Table of Contents (Continued)
Section Title Page
Chapter 3: Maintenance, Adjustments, and Service
31 WEEKLY CLEANING 3-1
32 FLUE AND BAFFLE INSPECTION 3-2
33 SERVICE 3-2
331 Replacement Procedures 3-3
3311 Main Burner Removal and Replacement 3-3
3312 Changing the Main Burner Orifice 3-3
3313 Replacing the Heat Baffles 3-3
3314 Pilot Burner Removal and Replacement 3-3
3315 Pilot Orifice Replacement 3-4
3316 Thermopile Replacement 3-4
3317 High Limit Control Replacement 3-4
3318 Temperature Controller Replacement 3-5
332 Temperature Controller Calibration 3-6
34 TROUBLESHOOTING 3-7
341 Rethermalizer Troubleshooting 3-7
342 Troubleshooting Pilot Burner 3-9
Chapter 4: Parts
3-1
4-1
Alphabetical Part List 4-18
Numerical Part List 4-20
Chapter 5: Schematics 5-1
ii
List of Tables and Figures
Table
1-1 Ventilation and Fire Safety References 1-6
4-1 Tank And Cabinet 4-2
4-2 Cabinet Joining Kit 4-4
4-3 Heating Components 4-6
4-4 Front Panel, Assembly 4-8
4-5 Tank & Fluid Components 4-10
4-6 Dual Fryer Including Fluid & Heat Components 4-12
4-7 Accessories Assembly 4-14
4-8 Dual Fryer With Accessories 4-16
Figure
1-1 Component Locations, Inside Tank 1-7
1-2 Pilot assembly, Flame Adjustment 1-9
1-3 Gas Valve Showing Location of the Pressure Regulator and Pilot Adjusters 1-10
1-4
1-5 Air Collar 1-13
Main Burner Conditions
Title Page
Title Page
1-11
4 -1 Tank And Cabinet 4 -3
4 -2 Cabinet Joining Kit 4 -5
4 -3 Heating Components 4 -7
4 -4 Front Panel, Assembly 4 -9
4 -5 Tank & Fluid Components 4 -11
4 -6 Dual Fryer Including Fluid & Heat Components 4 -13
4 -7 Accessories Assembly 4 -15
4 -8 Dual Fryer With Accessories 4 -17
iii
Chapter 1: General Information and Installation
The Pitco Frialator Rethermalizer is a revolutionary new reheating unit. By using Pitco Frialator's tube fired heating
system, the Rethermalizer is up to temperature and ready to cook in minutes. Each of the heating tanks holds
approximately 15 gallons of water which is maintained automatically by the unit. The temperature of each tank is
monitored and controlled by its own electronic unit mounted in the front panel. Each electronic unit is preset at the
factory to maintain the temperature of its tank at 195 °F. Quick recovery time and even temperatures are assured by using
a 55,000 BTU main burner system for each tank. The Rethermalizer is very easy to use allowing you to cook and not
worry about the unit. How ever, it is important that you familiarize yourself with the operation and safety notices of this
manual. This manual contains the installation, operation, and maintenance procedures for the Taco Bell Rethermalizer.
Do not throw away this manual after use, store in a safe place for reference.
1.1 CHECKING YOUR NEW RETHERMALIZER
Every effort has been made to ensure that your Rethermalizer will be delivered to you in perfect condition. As you
unpack the Rethermalizer, inspect the unit for damage. If somethi ng is damaged, DO NOT sign the bill of lading. Contact
the shipper immediately, because the shipper is only responsible for 15 days after delivery. Check the packing list
enclosed with your Rethermalizer to ensure that you have received everything on the list. If you are missing any parts,
contact the dealer from whom the unit was purchased. As you unpack the Rethermalizer be careful to keep its weight
evenly distributed.
Flue Vents
CAUTION
To prevent equipment damage, don't tilt the unit onto any three
of its casters or pull the unit by the flue vents.
Locate your Pitco Frialator warranty and fill in the serial number of the Rethermalizer and the date received. You will
find the serial number on the plate inside the door. Put your warranty in a safe pl ace for future reference. DO NOT return
the warranty sheet to Pitco Frialator. The Rethermalizer has been assembled for you at the factory and is ready to be
installed.
1.1.1 Check Your Order
In the shipping crate with the Rethermalizer you will also find:
(1) Cleaning Brush (2) Tube Screens
(1) Meat Racks (1) Pan Support Rack Kit
(1) Water Hose and Quick Disconnect
1-1
1.2 ASSEMBLY AND LEVELING
When you receive your Rethermalizer it is completely assembled with the possible exception of the casters.
1.2.1 Caster Installation and Adjustment
Installing the casters on the Rethermalizer is done with a 7/16" wrench and socket. The casters must be installed before
connecting the unit to the gas supply. The casters provide the necessary height to meet sanitation requirements and assure
adequate air supply to the burner. Attach the casters by performing the following procedure.
a. Lay the Rethermalizer on its back being careful not to damage the flue by pulling on it. Protect the outside
of the unit with cardboard or a drop cloth when laying it down.
b. Attach each caster with the hex head cap nut supplied with the
Rethermalizer. Each caster requires four 1/4-20 x 5/8" bolt.
c. Mount the bolts from the inside of the unit with the nut on the outside of
the cooker. The nuts have lock washers attached to them, therefore it is not
necessary to use lock washers.
d. When all six casters are mounted, stand the unit up being careful not to put
too much weight on any one caster.
e. Move the Rethermalizer to the desired location and lock the wheels using
the front locking devices on each caster.
1.3 INSTALLATION
Although it is possible for you to install and set up your new Rethermalizer, it is STRONGLY recommended that you
have it done by qualified professionals. The professionals that install your new Rethermalizer will know the local
building codes and ensure that your installation is safe. This manual provides the installer with valuable information on
the installation of your Rethermalizer.
WARNING
DO NOT obstruct the flow of combustion/ventilation or air openings around the
rethermalizer. Adequate clearance around the rethermalizer is necessary for servicing and
proper burner operation. Ensure that you meet the minimum clearances specified in the
installation instructions.
1-2
1.3.1 Installation Clearances
The Rethermalizer needs clearance around it for proper operation. Adequate clearances allow for servicing
and proper burner operation. The clearances shown below are for cooker installation in combustible and noncombustible construction.
Back 6" 0"
Sides 6" 0"
Floor 4" 4"
Combustible Non-Combustible
Construction Construction
1.3.2 Gas Connection
Your Rethermalizer will give you peak performance when the gas supply line is of sufficient size to provide
the correct gas flow. The gas line must be installed to meet the local building codes or National Fuel Gas
Code (NFPA 54-1984) and ANSI Z223.1-1988 (or most current). In Canada, install the Rethermalizer in
accordance with CAN1-B 149.1 and CAN1-B 149.2 and local codes. Gas line sizing requirements can be
determined by your local gas company by referring to National Fuel Gas Code, Appendix C, Table C-4
(natural gas) and Table C-16 (propane). The gas line must be large enough to supply the necessary amount
of fuel to all appliances. The burner manifold operating pressure should be as specified on the data plate
attached to the inside of the door. Other factors that are used to determine the piping requirements are BTU
requirements of the appliances being connected and the length of pipe between the meter (main shut off) and
the appliances.
WARNING
NEVER supply the Rethermalizer with a gas that is not indicated on the data plate.
Using the incorrect gas type will cause improper operation. If you need to convert the
unit to another type of fuel, contact your dealer.
1.3.2.1 Fuel Types - Each Rethermalizer is equipped to work with one type of fuel. The type of fuel with
which the appliance is intended to operate is stamped on the data plate attached to the inside of the
door.
WARNING
DO NOT use an open flame to check for gas leaks ! Keep all open flames away from the
unit until the leak test is complete.
1.3.2.2 Gas Line Connection - Connect the Rethermalizer to the gas supply line with a connector that
complies with the Standard for Connectors for Movable Gas Appliances (ANSI Z21. 69-1987). If
you are installing a unit with casters use a quick disconnect discussed in the Quick Disconnect
installation instruction, 1.3.2.3. Connect the gas line to the Rethermalizer using a pipe joint sealant
that is resistant to liquefied petroleum. If the Rethermalizer was disconnected during the fuel line
testing, use a solution of soap and water to leak test the new connection.
1-3
NOTICE
NEVER use an adaptor to make a smaller gas supply line fit the cooker connection.
This may not allow proper gas flow for optimum burner operation, resulting in poor
cooker performance.
1.3.2.3 Quick Disconnect Gas Connection - Units
equipped with casters must be installed with connectors that
comply with the Standard for Connectors for Movable Gas
Appliances, ANSI Z21.69-1987, and Addenda Z21.69A-
1989. This connection should include a quick disconnect
device that complies with the Standard for Quick
Disconnect Devices for Use With Gas Fuel , ANSI Z21.41-
1989. When installing a quick disconnect you must also
install a means for limiting the movement of the
rethermalizer. This device will prevent the gas line or the
quick disconnect from being strained. The restraining device
should be attached to the cooker on the back panel as shown
in the illustration. The quick disconnect, hose, and
restraining device can be obtained from your dealer.
1.3.2.4 Fuel Supply Line Leak and Pressure Testing - The fuel supply system must be tested before the
Rethermalizer is used. If the fuel line is going to be tested at a pressure greater than (>) 1/2 PSIG (3.45 kPa),
make sure that the unit is disconnected from the fuel line. If the fuel line is to be tested at a pressure equal to or
less than (<) 1/2 PSIG (3.45 kPa), the Rethermalizer can be connected but the unit's gas valve must be shut.
Test all gas line connections for leaks with a solution of soap and water when pressure is applied.
1.3.3 Plumbing Connections
The plumbing installation should be done by a licensed plumber and must comply with local and national
codes. The water inlet line on the Rethermalizer is located on the back side of the unit and consists of a hose
with a quick disconnect similar to that used for the gas connection. This line feeds water to the auto fill valves
through the manual shut-off valves also located on the back of the unit. A drain line for each tank is
underneath the unit and can be inserted into a drainage system. The drain lines for each tank are connected
together to form a single common drain line. The drain line also has the overflow line from each tank
connected to it. This connection is made after the drain valve to provide an unobstructed overflow path.
1-4
1.3.4 Electrical Connection
The electrical service used by the Rethermalizer must comply with local codes. If there are no local codes
that apply, refer to the National Electrical Code (NEC) to install the service. In Canada refer to CSA
Standard C22. 1 and local codes. Wiring diagrams are provided inside the front panel of the Rethermalizer.
The power requirements for the unit are shown below.
Input Voltage 120 VAC, 60Hz
Current per Rethermalizer 0.5 Amps
WARNING
This appliance is equipped with a three prong (grounding) plug for your protection
against electrical shock hazard in the event of equipment malfunc tion. DO NOT cut
or remove the grounding (third) prong.
The Rethermalizer has two power cords which supplies power to the unit's controls. The unit must be
grounded in accordance with local code; if there is not a local code, comply with NEC ANSI/NFPA No. 70-
1987. It is advised that these power cords be plugged into a wall receptacle supplied from the ventilation
control. This will ensure that the Rethermalizer can not be operated unless the ventilator is also on to provide
proper ventilation. Disconnect power to the Rethermalizer before cleaning or servicing.
1.3.5 Ventilation and Fire Safety Systems
Your new Rethermalizer must have prope r ventilation to function safely and properly. Exhaust gas
temperatures can reach as high as 1200°F. Therefore, it is very important to install a fire safety system. Your
ventilation system should be designed to allow for easy cleaning. Frequent cleaning of the ventilation system
and the Rethermalizer will reduce the chances of fire. Table 1-1 provides a list of reference documents that
provide guidance on ventilation and fire safety systems. This table is not necessarily complete. Additional
information can be obtained from the American Gas Association, 8501 East Pleasant Valley Road,
Cleveland, OH 44131.
WARNING
Never stand on the rethermalizer to service or clean the hood.
1-5
CAUTION
Underwriters Laboratory
es of Fire Extingushers
Ensure that your ventilation system does not cause a back draft (down draft) at the
unit's flue opening. Back drafts will not allow the Rethermalizer to exhaust properly
and will cause overheating which may cause permanent damage. Damage caused by
backdrafts will not be covered under equipment warranty. NEVER allow anything to
obstruct the flow of combustibles or ventilation exiting from the unit's flue. DO NOT
put anything on top of the flue area.
Table 1-1 Ventilation and Fire Safety References
Topic
Grease Extractor ANSI/UL 710-1981 ANSI/NFPA 96-1987
Ventilation Hood ANSI/UL 705-1984 ANSI/NFPA 96-1987
Filter Unit
Typ
and Detection Equipment
Dry Chemical ANSI/UL 299-1984 ANSI/NFPA 17-1985
Water ANSI/UL 626-1984 ANSI/NFPA 13-1989
Foam
Sprinklers ANSI/UL 199-1982
Smoke Detectors ANSI/UL 268-1981 ANSI/FPA 72B-1986
ANSI/UL 586-1985
ANSI/UL 900-1987
ANSI/UL 154-1983 ANSI/NFPA 12-1989
Document
National Fuel Gas Code
Document
ANSI/NFPA 96-1987
ANSI/NFPA 11-1988
ANSI/NFPA 13-1989
ANSI/NFPA 13-1989
Fire Detection Thermostats ANSI/UL 521-1987 ANSI/FPA 72B-1986
Excessive ventilation causes drafts, which will interfere with the proper operation of the pilot and the
burner. Leave at least 18 inches of open space between the Rethermalizer's flue vent opening and the intake
of the exhaust hood.
NEVER connect the blower hood vent directly to the flue openings. The direct flow
of air will cause poor temperature recovery, poor ignition, inefficient operation of the
Rethermalizer, and could extinguish the pilot.
NOTICE
1-6
1.4 INITIAL ADJUSTMENTS
After your Rethermalizer has been installed as described in section 1.3, it needs to be adjusted to ensure that
it will perform as designed. These adjustments must be performed by a qualified person. To perform these
adjustments the following tools will be needed:
• Manometer (low pressure gauge) • DC Millivolt Meter
1.4.1 Visual Checks and Equipment Locations
Before you begin filling and adjusting the unit, perform the following visual checks:
a. Move the Rethe rmalizer to its permanent cooking position and lock the caster wheels. Ensure that
the Rethermalizer drain is lined up with the floor drain.
b. Check the High Limit probe located inside the tank. Ensure that the mounting screws are tight to
prevent the pr obe from coming loose during operation. Figure 1-1 shows the location of the
High Limit probe, Temperature probe, and the Water Level sensors. Also shown are the over
flow stand pipe and the water entry nozzle. Look down inside the Rethermalizer tanks to see the
probes.
Figure 1-1 Component Locations, Inside Tank
1-7
1.4.2 Filling the Rethermalizer
The Rethermalizer is equipped with an automatic water level
maintaining system. To fill the unit with water place the ON/ OFF
switch in the ON position. This causes the solenoid valve to open
and supply water to the unit through the fill nozzle in the bottom of
the tank. The tank will continue to fill until the water level reaches
the level sensors. When both water level sensors are covered the
solenoid valve will close stopping the flow of water. During
normal operation the automatic fill system will maintain the water level at the proper height.
NOTE
During normal operation the automatic water fill system will continue to control the
water level in the Rethermalizer tank. If the water control system turns on while the
main burners are lit the main burners will turn off. This is normal and will not affect
the operation of the Rethermalizer. When the tank refills to the high level probe the
solenoid will close and the main burners will relight.
1.4.3 Pilot Light System
The Rethermalizer uses a manual pilot light system to light the main burners. The pilot light receives its gas
supply through the electrically controlled gas valve. To light the pilot, perform the procedure below.
a. Each side of the unit has its own gas supply valve. This allows one side to be serviced while the
other is operating. These gas valves should normally be open.
b. Turn the gas valve knob to the PILOT position and push in on the knob. Hold
the knob in for approximately one minute to purge the air out of the line. Hold
a flame to the pilot light until the pilot ignites. This may take a little while the
first time you light the Rethermalizer because of air in the lines. Once lit, hold
the knob in for approximately 60 seconds and then release.
WARNING
Wait 5 minutes before attempting to relight the pilot. This will allow for any
gas in the unit to dissipate.
c. Turn the gas knob counterclockwise to the ON position.
1-8
d. If the pilot goes out repeat step c. If after three tries the pilot will not remain lit, contact a
qualified service technician.
e. Place the ON/OFF switch in the ON position. The
electronic control unit will come on and display the
temperature of the water. There will also be a red light lit
between the left and middle digits of the display. This
light indicates that the electronic control unit is calling
for heat. If the water level is below the low level sensor
the water solenoid valve will open and fill the tank.
f. When the water in the tank is at the
correct level the main burner will light
and be controlled by the electronic
control unit. The pilot burner will
remain lit regardless of the switch
position.
g. The burners will remain lit until the
temperature reaches 195°F where they
will turn off. While the burners are off
the red light in the electronic display
will be off. The burners will maintain
the water temperature be tween 194°F
and 196°F.
h. When the ON/OFF switch is in the ON posit ion the water level will be maintained by the water fill
system.
1.4.3.1 Pilot Flame Adjustment - The pilot flame should be adjusted to produce between 300 and 500
millivolts output from the thermopile. Figure 1-2 shows the pilot assembly with examples of the incorrect
and correct pilot size. Example A illustrates a pilot size that is too small to produce sufficient millivolt
output. Example B is the correct size for proper millivolt output.
Figure 1-2 Pilot Assembly, Flame Adjustment
1-9
a. This test requires the DC millivolt meter set to a scale of 0-l000mV. Using leads with sharp probes
will help in taking the required reading.
b. Locate the thermopile wires coming from the High Limit box going to the gas shut off valve. The
wire insulation size decreases near the gas valve connections.
c. Connect the negative (-) test probe to the pilot tubing (ground).
d. Connect the positive (+) test probe to one of the High Temperature Limit terminal connections.
e. Remove the pilot flame adjustment cover.
Figure 1-3 Gas Valve Showing Location of the Pressure Regulator and Pilot Adjusters.
f. Turning the flame adjusting screw clockwise lowers the flame and the millivolt output. Turning the
screw counterclockwise increases flame size and millivolt output.
g. Rotate the screw in the direction to achieve a reading of 400±50 mV.
NOTE
Allow 3 to 5 minutes between flame adjustments to allow the reading to settle.
h. Replace the pilot flame adjusting screw cover.
1-10
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