Pitco Frialator PM14, RPB14, 12, 35C+, 24 User Manual

Installation, Operation & Service

Instructions

Covering Gas Fired Deep Fryers

Model Numbers: 35C+, 7, 14, 18, 24, 34, 12, 14R,

PR14, PM14, RPB14

P.O.Box 501, 509 Rt 3A, Bow, NH 03302 USA Tel # [phone] Fax # [phone]

A Blodgett Company

with all options

WARNING

Do NOT attempt to make adjustments to sealed devices. hey are set at the factoryand DO

NOT require further adjustments.

WARNING

Installation and all connections must be made according to National and Local Regulations
and Codes in force.

WARNING

The power supply must be disconnected before servicing or cleaning the appliance.

WARNING

To prevent burns, always ensure the fryer is completely SHUT DOWN and COOLED down

before working on the fryer. Do not break any fryer gas connections while the unit is

connected to a gas supply line.

NOTICE

Installation should only be done by a Competent Service Technician.

The Model & Serial Number, and the Gas Type & Pressure are stamped into the Data Plate,

located on the inside panel of the door.

NOTICE

This appliance is intended for professional commercial use only and, as such, should be

operated by fully trained personnel.

NOTICE

It is recommended that this machine be inspected by a Qualified Technician on yearly basis.

WARRANTY

Pitco Frialators will be warranted against defects in manufacturing or materials as follows:

1. Fry Tanks:
Stainless Steel - 10 Years
Plain Steel - 5 Years

2. All Other Parts - 1 Year

Parts will be repaired or replaced at our option and will include the parts only unless otherwise specified.

L20-103 Rev 00 (29 July 1995)

TABLES:

Appliance Model

Number

Great Britain

Ireland

France

Gas

NAT12
LP
NAT24
LP
NAT34
LP

LP

LP

NATRPB14A
LP
NATRPB14B
LP
NAT12
LP
NAT24
LP
NAT34
LP

LP

NAT12
LP
NAT24
LP
NAT34
LP

Supply Pressure (mbar)

Appliance Catagory

(governor only)

Burner Pressure(mbar)

Injectors (mm)

Pilot Injector (Code)

LP16LP

LP16LP

Input (nom) gross kw

Input (nom) net kw

nom rate m3/h

Governor

YES11.7N221.716I2H18/20G20NAT7

NO15.2LP161.15-I3P50G31LP

YES23.3N221.7516I2H18/20G20NAT14

NO27.2LP161.15-I3P50G31LP

YES27.8N221.716I2H18/20G20NAT18

YES3.432.235.7N222.4410.8I2H20G20NAT(PM)(PR)14 (R)
YES1.313335.7LP161.5129.4I3P37/50G31LP
YES2.220.923.24.166.2II2H3P20G20NATRPB14A
YES0.8621.423.22.1815.3II2H3P37G37LP
YES2.523.726.34.46.8II2H3P20G20NATRPB14B
YES0.9724.226.32.1819II2H3P37G37LP

YES11.7N221.716I2H18/20G20NAT7

YES23.3N221.7516I2H18/20G20NAT14

YES27.8N221.716I2H18/20G20NAT18

YES3.432.235.7N222.4410.8I2H20G20NAT(PM)(PR)14 (R)
YES1.313335.7LP161.5129.4I3P37G31LP

NO11.7N22I2E+20/25G20NAT7
NO15.2LP16I3P50G31LP
NO23.3N22I2E+20/25G20NAT14
NO27.2LP16I3P50G31LP
NO27.8N22I2E+20/25G20NAT18

NO3.3132.235.7N224 X 1.1I2E+20/25G20/G25NAT(PM)(PR)14 (R)

NO1.313335.7LP161.4I3P37G31LP
YES2.220.9/16.823.2/10.64.166.2I2Esi20/25G20/G25NATRPB14A
YES0.8621.423.22.1815.3I3P37/50G31LP
YES2.523.6/19.326.3/21.44.46.8I2Esi20/25G20/G25NATRPB14B
YES0.9724.226.32.1819I3P37/50G31LP

Amps at 230 v 50 Hz

kw at 230 v 50 Hz

00YES2.5523.426N222.4410I2H20G20NAT35C+
00NO123.926LP161.4-I3P37G31LP

00YES2.5523.626N222.4410I2H20G20NAT35C+

00NO123.926LP161.4-I3P37G31LP

00NAT35C+
00NO123.926LP161.4-I3P37G31LP

i

Appliance Model

Number

Netherlands

Germany

Austria

Gas

NAT12
LP
NAT24
LP
NAT34
LP

LP

LP

NATRPB14A
LP
NATRPB14B
LP
NAT12
LP
NAT24
LP
NAT34
LP

LP

NAT12
LP
NAT24
LP
NAT34
LP

Supply Pressure (mbar)

Appliance Catagory

(governor only)

Burner Pressure(mbar)

Injectors (mm)

Pilot Injector (Code)

LP16LP

LP16LP

Input (nom) gross kw

Input (nom) net kw

nom rate m3/h

Governor

YES11.7N221.716I2H18/20G20NAT7

NO15.2LP161.15-I3P50G31LP
YES23.3N221.7516I2H18/20G20NAT14

NO27.2LP161.15-I3P50G31LP
YES27.8N221.716I2H18/20G20NAT18

YES3.432.235.7N222.4410.8I2H20G20NAT(PM)(PR)14 (R)
YES1.313335.7LP161.5129.4I3P37/50G31LP
YES2.220.923.24.166.2II2H3P20G20NATRPB14A
YES0.8621.423.22.1815.3II2H3P37G37LP
YES2.523.726.34.46.8II2H3P20G20NATRPB14B
YES0.9724.226.32.1819II2H3P37G37LP

YES11.7N221.716I2H18/20G20NAT7

YES23.3N221.7516I2H18/20G20NAT14

YES27.8N221.716I2H18/20G20NAT18

YES3.432.235.7N222.4410.8I2H20G20NAT(PM)(PR)14 (R)
YES1.313335.7LP161.5129.4I3P37G31LP

NO11.7N22I2E+20/25G20NAT7

NO15.2LP16I3P50G31LP

NO23.3N22I2E+20/25G20NAT14

NO27.2LP16I3P50G31LP

NO27.8N22I2E+20/25G20NAT18

NO3.3132.235.7N224 X 1.1I2E+20/25G20/G25NAT(PM)(PR)14 (R)

NO1.313335.7LP161.4I3P37G31LP
YES2.220.9/16.823.2/10.64.166.2I2Esi20/25G20/G25NATRPB14A
YES0.8621.423.22.1815.3I3P37/50G31LP
YES2.523.6/19.326.3/21.44.46.8I2Esi20/25G20/G25NATRPB14B
YES0.9724.226.32.1819I3P37/50G31LP

Amps at 230 v 50 Hz

kw at 230 v 50 Hz

00YES2.5523.426N222.4410I2H20G20NAT35C+
00NO123.926LP161.4-I3P37G31LP

00YES2.5523.626N222.4410I2H20G20NAT35C+

00NO123.926LP161.4-I3P37G31LP

00NAT35C+
00NO123.926LP161.4-I3P37G31LP

ii

TABLES:

Table of Contents

iTables for Great Britain, Ireland & France ............................

iiTables for Netherlands, Germany & Austria ...........................

iiiTables for .................................................

1TABLE OF CONTENTS: ...............................................

3MODEL NUMBER RECOGNITION: .......................................

3Explanation of Model Number Configuration ...........................

3Explanation of Prefixes Within Basic Model Numbers .....................

3Explanation of Suffixes Within Basic Model Numbers .....................

3Explanation of Suffixes Outside Basic Model Numbers ....................

3INSTALLATION: ....................................................

3Installation Clearances .........................................

3Ventilation & Fire Safety Systems ..................................

3Gas Connection .............................................

3Fuel Line Testing ............................................

4Initial Assembly ..............................................

4Electrical Connections .........................................

4Initial Adjustments ............................................

4Initial Cleaning ..............................................

4OPERATION: ......................................................

4Covers ...................................................

4Filling the Fry Tank With Shortening ................................

4Lighting the Pilot .............................................

4On NON Electronic Ignition Fryers .........................

4On Electronic Ignition Fryers .............................

4Running the Fryer up to Operating Temperature ........................

4GS Thermostat Equipped ...............................

4Digital Thermostat Equipped .............................

4Computer Equipped ...................................

5Filtering Procedures ..........................................

5Shutting the Fryers Down for a Short Time ............................

5On NON Electronic Ignition Fryers .........................

5On Electronic Ignition Fryers .............................

5Shutting the Fryers Down for an Extended Time ........................

5On NON Electronic Ignition Fryers .........................

5On Electronic Ignition Fryers .............................

6Operating the Computer Control ..................................

6Programming the Computer Control ................................

6Operating the Digital Control .....................................

6Programming the Digital Control ..................................

7CLEANING / MAINTENANCE: ...........................................

7Daily Cleaning ..............................................

7Weekly Cleaning .............................................

7OPTIONS: ........................................................

7Digital Controls ..............................................

7Computers .................................................

7Float Switch ................................................

7Basket Lifts ................................................

7UFM or Built In Filter Operation ...................................

8TROUBLESHOOTING: ...............................................

8Frying Systems ..............................................

8Filtering Systems ............................................

1

8SERVICE: ........................................................

8Thermostats ................................................

8Gas Valves ................................................

9Hi Limit Thermostats ..........................................

9Thermocouples ..............................................

9Pilots ....................................................

9Probes ...................................................

9Electronic Ignition Modules ......................................

9Flame Sensors ..............................................

10Computers .................................................

10Digital Controls ..............................................

10Basket Lifts ................................................

10Float Switches ..............................................

10Interlock Switches ............................................

10Relays ...................................................

10Hot Surface Ignitors ...........................................

10Hot Surface Ignition Modules .....................................

10Blower Circuits ..............................................

10Burners ...................................................

12TROUBLESHOOTING: ...............................................

1235C+, 7, 14, 18, 24, 34, 14R .....................................

12Computer Option ............................................

12Electronic Ignition Option .......................................

13RPB Machines ..............................................

13SCHEMATICS: .....................................................

13Table of Schematic Descriptions ..................................

14Table of Schematic Contents .....................................

2

MODEL NUMBER RECOGNITION:

EXPLANATION OF MODEL NUMBER CONFIGURATION:

Most model numbers have a PREFIX and a SUFFIX. The explanation of the different Prefixes and Suffixes
is listed below. Standard fryers, with NO options and a mild steel tank, will not have any PREFIX or SUFFIX but

simply have a number (7, 14, 18 etc.)

EXPLANATION OF PREFIXES WITHIN BASIC MODEL NUMBERS:

PR = Fryer utilizing a solid state T-Stat (GO) control and melt cycle. This includes four 15 cm (6") burners

and tubes with high efficiency baffles.

PM = Fryer utilizing a built-in computer control with four 15 cm (6") burner and tubes and high

efficiency baffles.

F = Fryers supplied with a filter system built adjacent to the fryer cabinet.
RPB = Radiant Power Burner (With Automatic Ignition.)

EXPLANATION OF SUFFIXES WITHIN BASIC MODEL NUMBERS:

D = Deep foam tank area. (In the 35C+ models, D denotes SS door.)
DI = Drop-in deep fat fryer.
F = Fish fryer with low splash back.
FF = Food fryer with high splash back for submerger & drainboard.
P = Donut fryer
UFM = Under fryer filter (manual).
WKS = Computer ready with float switch and SS tank. Bottom drain. (Special for K.F.C.)
S = Fryers with stainless steel tank. This will follow the model number and precede the UFM notation.
SS = Fryers with stainless steel tank and cabinet. This will follow the model number and precede the

UFM notation.

EXPLANATION OF SUFFIXES OUTSIDE BASIC MODEL NUMBERS (OPTIONS):

The basic model number must be followed with a (-) then the suffixes. The (-) only applies to the first suffix used.

Option D = Bottom drain Option T = Drain valve safety switch

Option E = Electric T-Stat (KX-299) Option V = Universal tank
Option F = Front extensions Option W = (Fast) Computer ready
Option H = Solid state T-Stat Option ZA = (Intellifry) Computer, 14 size. Single
Option J = Electronic Ignition control Option ZB = Computer, 7 size. Single
Option K = Float switch Option Z/2A= Computer, 14 size. Dual
Option L = Basket lifts Option Z/2B= Computer, 7 size. Dual
Option R = Rear extensions

INSTALLATION:

INSTALLATION CLEARANCES:

The fryer needs clearance around it to allow for correct combustion, cleaning and for fire hazard reasons. It is
recommended that the fryers have a minimum of 15 cm of clearance from any combustible surface and have at
least 15 cm floor clearance. If the fryer is equipped with a filter, it will be necessary to allow at least 0.75 m front
clearance for the removal/installation of the filter pan/module.

VENTILATION & FIRE SAFETY SYSTEMS:

All fryers must be placed under a Hood style ventilation system. An adequate supply of fresh air shall be provided
into the room or space enclosing equipment for the units ventilation and combustion requirements. Exhaust gases
can reach high temperatures, therefore, it is important to install a fire safety system. Both the Ventilation Hood
and Fire Safety System must be installed according to local and national codes.

GAS CONNECTION:

NEVER supply the fryer with a gas that is not indicated on the data plate, located on the inside of the door. To
ensure peak performance and correct combustion Pitco Fryers must be supplied with an amount of Fuel Gas
sufficient to meet the rating requirements shown on the data plate, found on the inside of the door. All gas
connections must be made by a Certified Gas Service Technician.

FUEL LINE TESTING:

Since the internal gas valve of the Pitco Fryer is rated at 50 mbar maximum pressure, it is imperative that no
testing be done at a pressure greater than this. If it is necessary to test at a pressure greater than this, the fryer
should be isolated from the gas line so that damage to the gas valve does not occur.

3

INITIAL ASSEMBLY:

Remove the two (2) screws that mount the rear of the tank to the cabinet. Place the Flue Heat Deflector in place
with the bend facing forward. Replace the tank mounting screws, through the Flue Heat Deflector into the tank. In
some cases the fryers legs may need to be installed.

ELECTRICAL CONNECTIONS: (Some machines do not require an electrical connection)

Pitco Frialators are manufactured to run on a particular electrical supply. Do NOT attempt to connect any fryer to
an electrical supply that is not indicated on the data plate on the inside of the door. All electrical connections must
be made according to the local codes and regulations .

INITIAL ADJUSTMENTS:

Thermocouple:

Gas Pressure (Only when Governors are installed.):
pressure reads the same pressure that is indicated on the data plate, located on the inside cover of the door.

Air Pressure
at each burner supply elbow to 2.21 mbar by adjusting the air slides at the blower.

Regulating Thermostats:
to make adjustments to this device.

Hi Limit Thermostats:
make adjustments to this device.

INITIAL CLEANING:

Before filling any Pitco Frialator with oil, it is advised that it be thoroughly cleaned to remove any foreign particles
from the cooking area. The machine should be filled with water to at least, the minimum level. Add the sample
packet of Fryer Cleaner and set the temperature control between 90º and 100º C. Using the supplied brush and
the appropriate protective clothing, brush the inside of the fry tank until clean. When finished, turn the machine
OFF and drain, rinse the tank with fresh water and dry carefully. The machine should be filled with oil at this time

and all exposed surfaces coated with a small amount of cooking oil to prevent surface rust.

The pilot is set at the factory and requires NO further adjustment.

The gas pressure should be adjusted until the manifold

(RPB14 ONLY): Use a pressure gauge capable of measuring under 3 mbar. Adjust the air pressure

These are preset at the factory and DO NOT need further adjustment. Do NOT attempt

These are preset at the factory and DO NOT need further adjustment. Do NOT attempt to

OPERATION:

COVERS:

In case of an oil fire in the fryer the cover can be used to place on top of the fryer to extinguish the flames. It
should be kept in a nearby location that is uncluttered and easy to reach.

FILLING THE FRY TANK WITH SHORTENING:

When using solid shortening, it must be cut into approximately 3 cm cubes and loosely packed around each of
the heat tubes. Be careful not to obstruct the optional float switch. If installed, it will be located in the bottom of the
fry tank at the rear as it must be allowed to float freely. Check that the oil level is at the minimum level once the oil

has melted.

LIGHTING THE PILOT:

On NON Electronic Ignition Fryers:
pilot flame. Continue to press the gas valve knob for approximately 15 to 30 seconds. The pilot should remain lit
when the gas valve knob is released, if NOT, try to reset the Hi-Limit and relight the pilot.

On Electronic Ignition Equipped Fryers:
automatically.

RUNNING THE FRYER UP TO OPERATING TEMPERATURE:

GS Thermostat Equipped (The Thermostat is connected to the Gas Valve by 2 small gas lines):
valve knob to the ON position and turn the Thermostat Dial to the desired level. The burners will automatically
bring the oil up to the cooking temperature. You may now cook with your Pitco fryer.

Digital Thermostat Equipped:
Display. The Digital control will illuminate and bring the shortening up to the desired temperature. You may now
cook with your Pitco fryer.

Computer Equipped:
computer display will come on and automatically bring the temperature up to the desired level and display
READY. You may now cook with your Pitco fryer.

Turn the gas valve knob to the ON position and press the Switch to the ON position. The

Turn the gas valve knob to the PILOT position and press inward. Light the

The pilot does NOT require lighting, since the machine will do this

Turn the gas valve knob to the ON position and press the ON/OFF switch on the

Turn the gas

4

NOTE: On machines equipped with Digital Controls or Computers that are programmed with a melt cycle, the
main burners will pulse on and off to slowly heat the oil. When the oil temperature has reached a preset level the
main burners will run constantly until the set temperature has been reached.

FILTERING:

Filtering is recommended on a daily basis to keep the oil in as
good a condition as possible. Follow the instructions below and
refer to the appropriate Figure for your machine.

1. Turn the fryer OFF as described in the "SHUTTING THE
FRYERS DOWN FOR AN EXTENDED TIME" section.

2. For Built In Filters (Filters located in a separate, but attached
cabinet. Figure 1): Detach the Quick Disconnect at the end of the
Return Hose and slide the tank outward. Pull the front and rear
Hold Down handles from their locked position, and lift the
Retaining Frame out. Lift the old filter paper out and replace with
a new paper. Install the Hold Down Rack and replace the
handles in a locked position. Push the pan back into place and
attach the hose.

3. For UFM (Filters that are stored under the actual fryers. Figure

2): Detach the Quick Disconnect at the end of the Return Hose
and pull the filter unit out from under the fryers. Pull the White
handle apart on the Pickup. Unscrew the Pickup tube from the
filter screen and lift the Clip Screen from the Support Screen and
Paper. Remove the Support Screen from the Paper envelope
and place it in a new Paper envelope. Fold the open end of the
paper over twice and place the Clip Screen over the folded end of the paper. Screw the Pickup onto the screen
and place it in the pan. Push the Pickup into its receptacle and push the filter under the fryer. Attach the Return
Hose.

Figure 1.

4. Open the GREEN drain valve for the fryer to be filtered. Allow the
oil to drain from the fry tank. NEVER - Open more than ONE
drain valve at the same time as the filter will NOT hold more than
one (1) tank.

5. Open RED return valve for the tank being filtered.

6. Turn the pump ON and use the Cleaning Brush, Crumb Scoop
and Cleaning Rod as needed to remove the debris from the fry
tank. Turn the pump OFF when the fry tank is clean.

7. Close the GREEN drain valve and RED Return valve.

8. Return the oil to the fry tank. When air bubbles are present in the
fry tank turn the pump OFF.

9. Close the RED return valve.

10. Turn the fryer ON as described in the operation section.

SHUTTING THE FRYERS DOWN FOR A SHORT TIME:

On NON Electronic Ignition Fryers:
Valve Knob to the PILOT position. This is recommended ONLY for short periods of time.

On Electronic Ignition Equipped Fryers:
to the OFF position.

SHUTTING THE FRYERS DOWN FOR AN EXTENDED TIME:

On NON Electronic Ignition Fryers:
position and turn the Gas Valve Knob to the OFF position. This is recommended when the machine is to be left
unattended for a long time, such as overnight.

On Electronic Ignition Equipped Fryers:
to the OFF position.

If equipped with a Power Switch, turn it to the OFF position and turn the Gas

Turn the Power Switch to the OFF position and turn the Gas Valve Knob

Turn the power Switch (If the machine is equipped with one.) to the OFF

Turn the Power Switch to the OFF position and turn the Gas Valve Knob

Figure 2.

5

OPERATING THE COMPUTER CONTROL:

To check the ACTUAL Temperature Press the
mode.)

key (After 5 seconds the display will return to the run

To check the SET Temperature Press the
mode.)

To check the COOK, SHAKE or HOLD times press the
key. (The times will be automatically displayed in sequence, the display will return to the run mode.)

The BOIL mode will be automatically displayed when the computer senses a constant temperature of 100 ºC.
This will only happen when water is in the machine during the Weekly Cleaning process. To cancel the BOIL
mode, turn the machine off and ON again. The computer will automatically exit the BOIL mode when the oil

temperature exceeds 100 ºC.

PROGRAMMING THE COMPUTER CONTROL:

To program the SET Temperature press

To return to the COOK mode at any time press

To set COOK TIME press and a PRODUCT KEY. Enter the desired time and press

to set its SHAKE TIME. Press again to set its HOLD TIME. Press & to return to

the COOK mode.

To enter the next level of programming press and enter the PASSWORD (if one is set). Press and
SELECT will be displayed.

To change from ºF to ºC press and use to toggle between the options.

To set the PASSWORD option press to display SET PASS and use to toggle between PASREQ and

NOPASS. When a PASSWORD is required press and set the desired four digit password.

To set the BEEPER VOLUME press and use to toggle between the three available volume levels.

To set the LANGUAGE option press and use to toggle between the available options.

To set the desired MELT CYCLE option press and use to toggle between the NO MELT, LIQUID &
SOLID melt cycle options.

To view the RECOVERY TEST TIME press and use again to display the recovery data.

To change CONTROL modes press and use to toggle between COMPUTER and TIMER control
modes.

OPERATING THE DIGITAL CONTROL:

Press the key to turn the machine ON and OFF.

Press the key to start the Left Hand TIMER and BASKET LIFT (when installed.)

P

1

key two times. (After 5 seconds the display will return to the run

key and the desired PRODUCT NUMBER

P

and enter the desired Temperature.

P

P

P

P

P

0

2

0

P

3

4 0

6

7

0

5

0

0

0

0

Press the key to start the Right Hand TIMER and BASKET LIFT (when installed.)

Press the key to check the ACTUAL Temperature.

Press the key to enter the PROGRAMMING mode.

PROGRAMMING THE DIGITAL CONTROL:

Use the and keys to adjust the settings when a change is needed during the programming.

Press the to enter the PROGRAMMING mode. The Left COOK TIME will be displayed, adjust as

needed. Press the again and the Right COOK TIME will be displayed, adjust as needed. Press the

again and the SET operating temperature will be displayed, adjust as needed. Press the again and

the MELT CYCLE option will be displayed, adjust as needed. Press the key again and LOC or UNLOC will

be displayed. The With/Without PASSWORD option may be changed. Press the key again and the ºF/ºC

option will be displayed, adjust as needed. Press the key again and the Right COOK TIME will be

displayed again. To EXIT the PROGRAMMING mode press and hold the key until MELT, HEAT or

DROP is displayed.

P

P

P

P

P

P

P

P

6

P

CLEANING / MAINTENANCE:

DAILY CLEANING:

Using a soft cloth and a mild detergent, wipe all external surfaces until they are free of debris. It is permissible to
allow a thin film of cooking oil to remain on all exposed (NON PAINTED) surfaces. Be sure to clean the front
panel and behind the door.

WEEKLY CLEANING:

Turn the gas valve knob to the PILOT position. The fryer should be completely drained of shortening. Fill the fry
tank with water to above the minimum and below the maximum level lines. (For best results use Pitco Fryer
Cleaner Part Number P6071397.) Turn the fryer ON as described in the "RUNNING THE FRYER UP TO THE
OPERATING TEMPERATURE:" section. When the water boils, use a pair of insulated rubber gloves and the
supplied cleaning brush (35C+ fryers are economy models and are not supplied with cleaning brush) to scrub the
inside of the fry tank, taking care not to damage the thin capillary tubes inside the tank. When the fryer is clean,
shut the fryer down as described in the "SHUTTING THE FRYERS DOWN FOR A SHORT PERIOD:" section.
Drain the water into a container that is capable of withstanding boiling water. Rinse the inside of the tank with
fresh water and dry with a soft cloth until all of the water is gone. This is a good time to perform the DAILY

CLEANING. The fryer is now ready to be refilled and used.

OPTIONS:

There are many options available on Pitco Frialator Fryers, these may include one or more of the following:

DIGITAL CONTROLS:

Machines with this option are completely controlled by the Digital Control. For programming instructions, refer to
the Operating section of this manual.

COMPUTERS:

All machines manufactured with the Computer option have a Back Up Thermostat. This Thermostat is located
behind the door of the fryer. When the computer receives an Open Probe signal from the Temperature Sensing
Probe, the Computer will display PROBE and the Back Temperature control will automatically begin to control the
oil temperature. For programming instructions, refer to the Operating section of this manual.

FLOAT SWITCH:

Take care to keep the Float Switch Ball free of any obstructions and debris as this will effect the way the fryer will
operate. When cleaning the Float Ball, the Clip must be removed first to provide access to the Float Ball. When
replacing the Float Ball make sure the Stamped letters are on the top. This option requires no other operator
maintenance.

BASKET LIFTS:

On machines that are equipped with Computers or Digital Controls, the Basket Lifts will automatically run when a
product button is pressed. When the Product Cook Time has expired the Basket Lifts will raise automatically.

UFM OR BUILT IN FILTER (F) OPERATION:

Filter paper should be changed when it is no longer effectively filtering the operating oil. For instructions on how to
filter, please refer to the Operating section of this manual.

7

TROUBLESHOOTING:

FRYING SYSTEM:

Should there be a problem with your machine, the following checks should be done prior to calling an Authorized
Service Company. Make sure the machine is operated correctly and that the Computer or Digital Display (when

installed) is programmed accordingly.

Check these items before calling your Authorized Service Company

Hi-Limit reset

Power switch on

Locate the problem in the chart below then follow the instructions in the above chart.

No lights on the front panel

Machine will not run:
Front panel lights are ON.

Pilot will not light

Pilot lights:
Machine will not heat

Machine will not maintain temp:
Is machine still running? YES
NO

Machine will not maintain temp:
Is pilot lit? YES
NO

Oil temp too hot or Machine runs constantly

HOW TO CHECKITEM TO CHECK
Check main power to machine (When applicable.)Power to machine
Press Hi-Limit reset button. Mounted on cabinet side

behind door
Power switch should be in the ON position. (On RPB

machines ONLY the manual reset switch must be
pressed after there has been an interruption in power.)

Make sure gas supply line is connectedGas to machine
Should be in the appropriate positionGas valve knob position
Check for blown fuses. (Where applicable.)Fuses
Make sure the pilot is litCheck pilot

ITEM TO CHECKPROBLEM

Power to machine (Where applicable.)Machine will not run:

Hi-Limit switch
Gas to machine
Gas valve knob position

Hi-Limit reset
Gas to machine
Gas valve knob position

Power switch ON
Gas valve knob position
Fuses
Is Thermostat turned UP

Gas valve knob position
Check pilot

Call Authorized Service Company
Relight pilot per the manual

Check Thermostat calibration (Where applicable.)
Call Authorized Service Company

Call Authorized Service CompanyShortening is leaking from fry tank

8

FILTERING SYSTEM:

Motor overheat trip

Pick up tube

Pick up screen

Filter pump NOT running

Filter pump running

Check these items before calling your Authorized Service Company

CHECKPROBLEM

Check main power to the machinePower to machine

Check filter circuit breaker on side of filter handleCircuit breaker

Remove cap on the left side at the rear of filter and
push red button

Fitting should be tight and cleanShortening return quick disconnect

Steel nut should be tight on the filter Pick up screen
inside tube should be clear
Fitting at top of tube should be tight

Paper should be installed per directions in the manualPaper installation

Check the small screen in the end of the pick up tube
(Inside the large steel nut.) to make sure it is clear

Check power to machine
Check circuit breaker
Check motor overheat trip

Check quick disconnect
Check pick up tube is attached correctly
Check paper installation
Check pick up screen installation

SERVICE

This chapter provides the qualified technician with the trouble shooting techniques necessary to diagnose
individual components within the Pitco fryer.

Thermostats:

GS (The Thermostat is connected to the Gas Valve by two small tubes):
when the temperature at the probe is LESS than the Set temperature. When the temperature is above the Set
level the port becomes closed. If Gas is leaking through the port the Thermostat must be replaced. If the

thermostat will not calibrate or maintain calibration within ±5ºC it should be replaced.

Gas Valves:

GS (The Thermostat is connected to the Gas Valve by two small tubes):
Remove the Outlet tube from the gas valve actuator. Seal the Outlet port at the gas valve. Turn the Pilot Knob the
ON position. With the Outlet Port sealed the main burners should not come ON, release the seal and the main
burner should come ON. Cycle the Gas Valve several times. If the Gas Valve does not perform as expected it
should be replaced.

Electric Actuated:
Actuator does NOT operate (Usually a small sound can be heard as the Actuator moves) the Gas Valve should
be replaced. If the Actuator operates but the main burners still do not come ON the Actuator should be removed
and inspected. If any part of the Actuator is damaged it should be replaced.

Electronic Ignition:
above section. These Gas Valves also use a small solenoid, mounted on the side of the body of the valve, to
control the flow of gas to the pilot. Test for 24 vac between the wires at the solenoid, if voltage IS present and NO
gas is evident at the Pilot, the Gas Valve should be replaced as a complete assembly.

Regulators:

Pilot Solenoids:
and the positive lead to the bottom connection on the hi limit. Light the pilot and allow enough time for the voltage
to increase to a normal level. Turn the Gas Valve Knob to the OFF position and allow the pilot to go out. Listen for
a small noise made when the Pilot Solenoid drops out. The millivoltage reading when this happens should be no
more that 10 mv.

This type of thermostat has an open port

Turn the Pilot Knob the PILOT position.

Test for Voltage at the wires on the Gas Valve Actuator. If voltage IS present and the valve

These Gas Valves use Electric Actuators which should be diagnosed as described in the

Vent caps must be kept clean and free from debris at all times.

Using a test meter capable of measuring 0 - 50 mv connect the negative lead to the pilot bracket

9

Hi Limits Thermostats:

All Hi Limits are electric switches that OPEN at a pre determined temperature. Check for continuity across the
terminations when the wires are disconnected.

Thermocouples:

Use a Multi Meter capable of measuring DC voltage below 1V. Attach the Negative lead to the Pilot Bracket and
the Positive lead to the upper connection at the Hi Limit. Light the Pilot and measure the DC voltage. The voltage
should be 25-35 mv. If the measured voltage is less than specified, the part should be changed.

Pilots:

Standard:
Electronic Ignition: As with Standard pilots, care must be taken to keep this area clean. The Electronic Ignition
Pilot Assembly incorporates the Spark Tip which is encased in a ceramic insulator. Check for any cracks or signs
of damage. Check the spark gap which should be between 3 - 6 mm. The High Voltage wire should also be free
of damage. If the High Voltage Wire is suspected of being at fault it should be checked for continuity.

Probes:

Unplug the probe wires at a convenient location and check for resistance. Also check the temperature of the oil. If
the resistance is NOT close to that shown on the chart below it should be changed.

TEMP RESISTANCE TEMP RESISTANCE TEMP RESISTANCE

21.11°C 108051 Ω 79.44°C 11719Ω 148.88°C 1734 Ω

37.77°C 53146 Ω 93.33°C 7586 Ω 162.77°C 1267 Ω

51.66°C 30902Ω 107.22°C 5055 Ω 176.66°C 942 Ω

65.55°C 18695Ω 121.11°C 3458 Ω 190.55°C 712 Ω

Pilots must be kept clean and free from anything that might block the flow of gas.

76.66°C 12832Ω 135.00°C 2422 Ω 204.44°C 547 Ω

Electronic Ignition Modules:

The module receives a 24 vac signal from the Temperature control system and starts a cycle to light the pilot and
prove the pilot flame. Check the module by following the steps below:

{ Check between the THS Terminal and GROUND for 24 vac to verify that the module is receiving a signal.
{ Listen for a spark sound. If NO spark sound can be heard, Turn the fryer OFF. Unplug the High Voltage Wire from

the module and replace it with a new Electronic Ignition Pilot Assembly. Temporarily ground the Pilot assembly
against a suitable Ground. Turn the machine ON and listen for a spark sound. If a sound can now be heard check
the ground wire on the installed Pilot and repair if damaged. If a spark CAN be heard go to the next step.

{ Check for 24 vac between the two wires at the Pilot solenoid on the Gas Valve. If voltage is found, turn the fryer

OFF and check the Pilot Solenoid for a Resistance of 60 Ohms. If the resistance varies more than 10 Ohms from
normal the Pilot Solenoid is defective and the Gas Valve must be replaced.

{ If the Pilot comes on normally and the Main Burners do NOT, check for 24 vac at the Main Burner Solenoid of the

Gas Valve. If voltage is found, turn the fryer OFF and check the Main Solenoid for a Resistance of 60 Ohms. If the
resistance varies more than 10 Ohms from normal the Main Burner Solenoid is defective and the Gas Valve must
be replaced.

{ If a spark can be heard but it continues without the Pilot lighting check the Flame Sensor as described in the

appropriate section.

Flame Sensors:

Run the fryer and check between the Flame Sensor wire and GROUND for 150 mv. If the millivoltage is NOT
present the Electronic Ignition Module is at fault. Turn the fryer OFF, unplug the wire from the connection on the
sensor. Connect a test meter capable of measuring Microamps in Series with the wire and the Flame Sensor.
Run the fryer so that the Pilot lights. The meter reading should be between 0.15 - 0.35 ma. Remove the meter
and replace the Flame Sensor wire. If the Microamperage is NOT present but the Millivoltage is, the Flame
Sensor is at fault.

Computers:

{ If the computer does NOT have a lit display check for 24 vac between the Green/Yellow and Red wires on the fryer

harness that plugs into the computer harness. If voltage is found, and the display is NOT lit the computer
connections should be checked for integrity. If the connection is good the computer is faulty.

{ If the display is lit but the Main Burners do NOT light, check for 24 vdc at the coil of the K6 relay. This is the Heat

Demand Relay and is switched ON only when the computer calls for a heating cycle. If voltage is present when the
computer is calls for a heat cycle the K6 relay may be at fault. If voltage is NOT present, check the computer

10

connections for integrity If the connection is good the Probe should be checked as described in the appropriate
section. If the Probe is not at fault the computer may be suspect.

{ If the display is lit but the Main Burners are still controlled by the Alternate Thermostat, check for 24 vdc at the K5

relay. This relay is the Control Transfer Relay and is energized at all times when the computer is ON. When the
computer senses an OPEN PROBE condition it will cease to energize the Control Transfer Relay and the Alternate
Thermostat will control the Heat Demand.

Digital Controls:

Check for an input voltage of 24 vac between the Red and White/Black wires at the control. When the control is
calling for a heating cycle check for a 24 vac output signal between Gray and the White/Black wires. If the control
des NOT output a signal when calling for a heat cycle it should be replaced.

Basket Lifts:

Micro Switch:
Motors: Check for the incoming voltage between the two wire leading to the motor. If voltage is present but the
motor does NOT turn the motor is defective. If the Basket Lift assembly comes UP and stops but drifts down, the
brake assembly on the motor is defective and the motor must be changed. If the Basket Lift assembly moves up
and down when operated but stops and starts at different positions check and adjust the Switch Actuation Plate
located on the output shaft of the motor.

Float Switches:

It is important to keep Float Switches clean and free from debris. The Float Ball should only be installed with the
writing in the UP position. To check the switch, electrically isolate the wiring and check for continuity.

Interlock Switchs:

These switches are mounted on the Drain Valve body and handle. When the handle is moved the Actuator
(magnet) on moves away from the switch and causes it to OPEN, this can be verified by checking for continuity
between the two wires that lead to the switch. The nominal gap between the Actuator and Switch should be
between 3 - 6 mm.

Relays:

When the correct voltage is supplied to the coil the switch section of the relay will close. Relays may be checked
by checking continuity between Switch terminals when the Relay IS and IS NOT energized.

Hot Surface Ignitors (Also known as HSI - RPB14 Only):

Disconnect the wiring harness leading to the part. Check for a resistance of 3 - 5 W while the Ignitor is at room
temperature. Run the fryer for five minutes and recheck the resistance. The reading should now be 5 - 7 W.

Hot Surface Ignition Modules (RPB14 Only):

Check between the TH terminal and GROUND for 24 vac. For the first 4 seconds after the module receives
voltage there will be a 24 vac output to the HSI. At this time the Check Fryer Light will light. This can be measured
between terminals HSI1 and HSI2. After this initial period, the module outputs a 24 vac signal to the gas valve
solenoid between VAL and GROUND. At the same time the HSI module sends a signal to the gas valve it begins
to sense a 0.15 - 0.35 ma signal from the Hot surface Ignitor. If this signal is NOT found the module will shut
down and send a 24 vac signal to the Check Fryer Light. This can be found by checking between the LAMP and
GROUND terminals.

Blower circuits (RPB14 Only):

The same 24 vac signal that controls the HSI module also energizes a Blower Relay. This relay switches a 240
vac signal to the Blower. Check for voltage at the Blower. The Relay can be checked in the same manner as
described in the appropriate section.

Burners (RPB14 Only) :

In order to inspect the burners for defect they must be removed from the machine. There must be NO visible
signs of damage, such as creases or holes. Remove the HSI before attempting to remove the burner, as they are

easily damaged.

Check for continuity between all connections with the plunger in the in and out positions.

11

TROUBLE SHOOTING:

Before diagnosing any machine for defective components check the following items:

v Check all power cords and appropriate circuit breakers to ensure that electrical power is supplied to the machine.
v Check all machine gas shut off valves to ensure that gas is supplied to the machine.
v Check all machine fuses.
v Check any appropriate electrical connections within the machine.
v Check all appropriate switches and gas valve knobs to ensure that machine is operated correctly.

35C+, 7, 14, 18, 24, 34 & 14R with NO options:

POSSIBLE CAUSESSYMPTOM

Plugged pilot orifice.Pilot will NOT light, when depressing the Gas Valve Knob.

Pilot lights, goes out when Gas Valve Knob is released.

Main Burners will NOT ignite.

The temperature of the oil is constant but not maintaining
the desired level.

The temperature of the oil is erratic.

Main Burners run constantly.

Computer will NOT light.

Defective Thermocouple.
Defective or Tripped Hi Limit.
Defective Pilot Solenoid.
Defective Hi Limit Wire.

Defective Gas Valve.
Defective Thermostat.
Plugged Regulator Vent cap.

Defective Thermostat.
Defective Gas Valve.

Defective Thermostat.
Defective Gas Valve.

Defective Thermostat.
Leaks in the Gas Valve to Thermostat tubing.
Defective Gas Valve.

Defective OFF-ON-START Switch.
Defective Computer.

Computer Option:

Computer shows a display but Main Burners will NOT
light.

controlled by the Back Up Thermostat.

Electronic Ignition Option:

Temperature control calls for heating, nothing else
happens.

Spark sound can be heard but pilot does Not light.

Pilot lights but sparking continues.

Pilot lights normally but Main Burners do NOT ignite.

Defective Probe.Computer Display shows PROBE.

Defective K6 Relay.
Defective K1 Relay.
Defective Electronic Ignition Module (if equipped).
Defective Gas Valve.

Defective K5 Relay.Computer shows a display but Main Burners can be

Defective Electronic ignition Module.
Defective Spark Wire/Pilot assembly.

Defective Electronic Ignition Module.
Plugged Pilot orifice.
Defective Pilot Solenoid.

Defective Electronic Ignition Module.
Defective Flame sensor.

Defective Electronic Ignition Module.
Defective Main Burner Solenoid.

12

RPB14:

Blower comes ON but Burners do NOT light.

Burners come ON but shut down after a few seconds.

Burners try to ignite but Blower does NOT come on.

Machine makes Booming sound.

SCHEMATICS:

POSSIBLE CAUSESSYMPTOM

Defective HSI.
Defective HSI module.

Defective HSI module.HSIs blow but Burners do NOT come on.

Defective HSI module.
Defective HSI.
Defective Burner.
Incorrect Gas or Air pressure.

Defective Blower Relay.
Defective Blower.

Defective HSI.
Defective HSI module.

..................

# PagesSchematic Drawing #Description

1700208Schematic, Gas - ALL Options w/Digital T-Stat

2700209Schematic, Gas - ALL Options w/3600 1 TK CMPTR. .............

2700210Schematic, Gas - ALL Options w/3600 2 TK CMPTR. .............

2700211Schematic, Gas - RPB w/3600 - 1 TK CMPTR. .................

2700212Schematic, Gas - RPB w/3600 - 2 TK Computer ................

1700213Schematic, TSTAT Digital Gas - RPB ........................

13

PARTS LIST:

COMMENTPART #DESCRIPTIONNOMENCLATURE
Digital ControlPP10940Cooking ControllerA1
Single control computer, 12 ProductPP10804Cooking ControllerA1
Single control computer, 8 ProductPP10805Cooking ControllerA1
Dual control computer, 12 ProductPP10806Cooking ControllerA1
Dual control computer, 8 ProductPP10807Cooking ControllerA1

PP10071Electronic Ignition ModuleA2

RPB machines onlyPP10801Ignition Control ModuleA2 & A3
P5046626Flame SensorE1
PP10280Pilot/Ignitor AssemblyE2
P5045720Fuse, 4 Amp Slow BlowF1 & F2
PP10122Fuse, 1 Amp Slow BlowF3

RPB machines onlyPP10717Hot surface IgnitorI1 & I2

15 position male connectorJ1

PP1020812 position male connectorJ2 & J15
PP102034 position male connectorJ3, J8 & J11
P50458392 position male connectorJ4, J5, J7 & J10
PP100893 position male connectorJ6
P50458389 position male connectionJ14

Not used on Digital Control machinesP5046690Relay, 24 vdcK1, K2, K4 & K5

Used on Computer equipped machines onlyP5046686Relay, 24 vacK3

RPB machines onlyPP10678Relay, 24 vdc solid stateK4

RPB machines onlyP5046688Relay, 24 vacK6
PP109Right Basket Lift MotorM1
PP109Left Basket Lift MotorM2

RPB machines onlyPP10394Left Blower MotorM3

RH RPB machines with UFM filters onlyPP10393Right Blower MotorM3

15 position female connectorP1

PP1020812 position female connectorP2 & P15
PP102024 position female connectorP3, P8 & P11
P50458292 position female connectorP4, P5, P7 & P10
PP100903 position female connectorP6
PP10439Power supply cordP12
P50458609 position female connectorP14
PP10262Drain switchS1 & S3

Computer equipped machines onlyPP10559Start switchS1 & S4

Computer equipped machines onlyP5047587Back Up ThermostatS2 & S3
PP10084Hi Limit ThermostatS2, S4 & S7
P5047169Basket Lift Micro SwitchS5 & S6
PP10837Hi Limit ThermostatS7
PP10210TransformerT1
PP10429TransformerT2

Non Electronic Ignition, Nat GasGas ValveV1

Non Electronic Ignition, LP GasGas ValveV1

Electronic Ignition, Nat GasGas ValveV1

Electronic Ignition, LP GasGas ValveV1

RPB, Nat GasGas ValveV1

RPB, LP GasGas ValveV1

14