Frymaster CF SERIES J3F user manual

User manual for the device Frymaster CF SERIES J3F

Device: Frymaster CF SERIES J3F
Category: Fryer
Manufacturer: Frymaster
Size: 3.57 MB
Added : 7/16/2014
Number of pages: 88
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Abstracts of contents
Summary of the content on the page No. 1


Master Jet CF Series Atmospheric
Gas Fryers
Service & Parts Manual



Series MJCF, MJCFE, MJCFEC, FMCFE,

FMCFEC, JCFX, KJ3FC, J3F & J65X.



NON-CE &


Frymaster, a member of the Commercial Food Equipment Service Association, recommends
using CFESA Certified Technicians.

24-Hour Service Hotline 1-800-551-8633 APRIL 2005

*8195186*
www.frymaster.com
PRINTED IN THE USA
Email: service@frymaster.com


Summary of the content on the page No. 2

Please read all sections of this manual and retain for future reference. NOTICE This appliance is intended for professional use only and is to be operated by qualified personnel only. A Frymaster Factory Authorized Service Center (FASC) or other qualified professional should perform installation, maintenance, and repairs. Installation, maintenance, or repairs by unqualified personnel may void the manufacturer’s warranty. NOTICE Drawings and photos used in this manual are intended

Summary of the content on the page No. 3

DANGER Instructions explaining procedures to be followed MUST be posted in a prominent location in the event the operator detects a gas leak. This information can be obtained from the local gas company or gas supplier. DANGER The crumb tray in fryers equipped with a filter system must be emptied into a fireproof container at the end of frying operations each day. Some food particles can spontaneously combust if left soaking in certain shortening material. Additional information c

Summary of the content on the page No. 4

Master Jet CF Series Atmospheric Gas Fryers TABLE OF CONTENTS PAGE # 1. SERVICE PROCEDURES 1–1 1.1 Functional Description 1–1 1.2 Accessing Fryers for Servicing 1–4 1.3 Cleaning Burner Manifold Gas Pressure 1–5 1.4 Adjusting Pilot Flame 1–6 1.5 Cleaning Gas Valve Vent Tube 1–7 1.6 Adjusting Burner Ceramic Target Spacing and Alignment 1–7 1.7 Calibrating Thermostat Control 1–8 1.8 Replacing Fryer Components 1–9 1.8.1

Summary of the content on the page No. 5

Master Jet CF Series Atmospheric Gas Fryers TABLE OF CONTENTS (cont.) PAGE # 1.12.6 Filter Magic II Wiring Diagram 1–40 2. PARTS LIST 2–1 2.1 Accessories 2–1 2.2 Burner Manifold Components 2–3 2.3 Cabinetry Components 2–5 2.3.1 Fryer Cabinetry 2–5 2.3.2 Filter Magic II and Spreader Cabinet Cabinetry 2–7 2.4 Casters, Legs and Associated Hardware 2–9 2.5 Component Shield, Filter Box Assemblies and Components 2–1

Summary of the content on the page No. 6

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.1 Functional Description Master Jet (MJ) CF Series Atmospheric gas fryers contain a welded stainless steel frypot that is directly heated by gas flames that are diffused evenly over its lower surface by ceramic targets. The flames originate from orifices in a U-shaped burner manifold positioned beneath the frypot. The orifice diameters differ for natural and propane gas as shown in the table below. For

Summary of the content on the page No. 7

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.1 Functional Description (cont.) CONTROL OPTIONS MJCF Series gas fryers may be equipped with thermostat controllers or Computer Magic III.5 computers. KJ3FC variants are equipped with user-supplied or KFC-1 computers. MJCF fryers equipped with thermostat controls are turned on and off with the gas valve control knob (an On/Off switch is optional). The temperature is set by means of a knob connected

Summary of the content on the page No. 8

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.1 Functional Description (cont.) FREQUENTLY USED TEST POINTS FOR MODELS WITH INTERFACE BOARDS Meter Test Setting Pins Results 12 VAC Power to Controller 50 VAC Scale 1 and 3 of J2 12-18 24 VAC Power 50 VAC Scale 24 VAC Terminals 22-28 24 VAC Power to Gas Valve 50 VAC Scale 6 on J1 and GROUND 22-28 120 VAC Power 250 VAC Scale 7 and 12 of J1 110-125 Probe Resistance* R x 1000 OHMS 2 and 3 of J1 ** ** Disconnec

Summary of the content on the page No. 9

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.1 Functional Description (cont.) MJCFE Series fryers equipped with computers have a temperature probe. In these units, the probe resistance varies directly with the temperature. That is, as the temperature rises, so does resistance at a rate of approximately 2 ohms for every 1° (F or C). Circuitry in the computer monitors the probe resistance and controls burner firing when the resistance exceeds or fal

Summary of the content on the page No. 10

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.3 Checking Burner Manifold Gas Pressure WARNING This task should be performed by qualified service personnel only. 1. Ensure that the gas valve knob or button is in the OFF position. 2. Remove the pressure tap plug from the end of the manifold (see illustration below) and connect a gas pressure-measuring device to the port. Remove plug to connect a gas pressure-measuring device to the port. 3

Summary of the content on the page No. 11

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.3 Checking Burner Manifold Gas Pressure (cont.) Non-CE Standard Non-CE Standard for Incoming Gas Pressures for Burner Manifold Gas Pressures Gas Minimum Maximum Gas Pressure 6" W.C. 14" W.C. 3.5" W.C. 1.49 kPa 3.48 kPa Natural Natural .75 kPa 14.93 mbar 34.84 mbar 7.5 mbar 11" W.C. 14" W.C. 8.25" W.C. LP 2.74 kPa 3.48 kPa LP 2.0 kPa 27.37 mbar 34.84 mbar 20.0 mbar 4. If the measured manifold gas pressu

Summary of the content on the page No. 12

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.5 Cleaning Gas Valve Vent Tube 1. Carefully unscrew the vent tube from the gas valve. NOTE: The vent tube may be straightened for ease in removal. 2. Pass a piece of ordinary binding wire (.052 inch diameter) or equivalent through the tube to remove any obstruction. 3. Remove the wire, and then blow through the tube to ensure it is clear. 4. Reinstall tube and bend it so that the opening is pointing d

Summary of the content on the page No. 13

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.7 Calibrating Thermostat Control 1. Fill the frypot to the lower OIL-LEVEL line with oil. If solid shortening is used, it must be tightly packed into the frypot. 2. Light the pilot. (Refer to Installation and Operation Manual that shipped with the fryer for detailed lighting instructions.) 3. Insert a good grade thermometer or pyrometer into the frypot, about one inch from the thermostat. 4. Se

Summary of the content on the page No. 14

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.7 Calibrating Thermostat Control (cont.) 13. Close the fryer control panel and replace the screws in the upper corners. 14. Reinstall the thermostat knob with its pointer aligned with the 325°F (163°C) index mark on the temperature dial. 15. Reconnect the fryer to the electrical power supply. 1.8 Replacing Fryer Components 1.8.1 Replacing Computer 1. Disconnect the fryer from the electric

Summary of the content on the page No. 15

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.8.2 Replacing Operating Thermostat CAUTION The thermostat must be calibrated after installation is complete. Refer to Section 1.7 for calibration instructions. When handling the thermostat, do not rotate the shaft more than two turns in either direction. Doing so will cause damage to the thermostat. 1. Disconnect the fryer from the electrical supply and drain the frypot. 2. Loosen the setscre

Summary of the content on the page No. 16

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.8.3 Replacing Temperature Probe 1. Disconnect the fryer from the electrical supply. 2. Drain the frypot. 3. Remove the screws from the upper left and right corners of the control panel. The panel is hinged at the bottom and will swing open from the top. 4. Unplug the wiring harness from the back of the controller and disconnect the grounding wire (see Section 1.8.1, Step 4). 5. Remove the cont

Summary of the content on the page No. 17

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.8.4 Replacing High-Limit Thermostat – Operating Thermostat Controls (cont.) 6. Unscrew the high-limit thermostat from the frypot and remove. 7. Apply Loctite PST567 thread sealant or equivalent to the replacement thermostat threads. 8. Reverse steps 1 through 7 to install the replacement. 1.8.5 Replacing High-Limit Thermostat – Computer Controls 1. Disconnect the fryer from the electrical pow

Summary of the content on the page No. 18

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.8.6 Replacing Heat Mode Indicator Light – Operating Thermostat Controls 1. Disconnect the fryer from the electrical supply. 2. Loosen the setscrew securing the thermostat knob and remove the knob. Remove the screws from the upper left and right corners of the control panel. The control panel is hinged at the bottom and will swing open from the top. 3. Disconnect the 9-pin connector and remove the con

Summary of the content on the page No. 19

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.8.8 Replacing Melt Cycle Timer – Operating Thermostat Controls The mechanical melt cycle timer is no longer available. A solid-state timer replaces the mechanical unit. To replace the mechanical melt-cycle timer: 1. Remove all electrical power from the fryer. Unplug fryer and ensure all power switches are off. 2. Access timer by removing the control panel. Remove timer by removing two screws

Summary of the content on the page No. 20

MASTER JET CF SERIES ATMOSPHERIC GAS FRYERS CHAPTER 1: SERVICE PROCEDURES 1.8.9 Replacing Burner Ceramic Targets DANGER Drain the frypot or remove the handle from the drain valve before proceeding further. 1. Disconnect fryer from electrical and gas supplies. 2. On FMCF fryers, remove square-drain sections as necessary to expose burner. 3. Disconnect the wires from the gas valve terminal block, marking each wire to facilitate connections. 4. Remove the high-limit ther


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