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SERVICE MANUAL
FRYMASTER MH52 AND BIH52 SERIES
GAS FRYERS
This equipment chapter is to be
FOR YOUR SAFETY
installed in the Fryer Section of the
Do Not Store or use gasoline or other
Equipment Manual.
flammable vapors and liquids in the
vicinity of this or any other appliance.
MANUFACTURED
BY
FRYMASTER, L.L.C.
P.O. BOX 51000
SHREVEPORT, LOUISIANA 71135-1000
PHONE: 1-318-865-1711
TOLL FREE: 1-800-551-8633
1-800-24 FRYER
FAX: 1-318-219-7135
Frymaster, L.L.C. 8700 Line Avenue 71106, 5489 Campus
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NOTICE IF, DURING THE WARRANTY PERIOD, THE CUSTOMER USES A PART FOR THIS ENODIS EQUIPMENT OTHER THAN AN UNMODIFIED NEW OR RECYCLED PART PURCHASED DIRECTLY FROM FRYMASTER/DEAN, OR ANY OF ITS AUTHORIZED SERVICE CENTERS, AND/OR THE PART BEING USED IS MODIFIED FROM ITS ORIGINAL CONFIGURATION, THIS WARRANTY WILL BE VOID. FURTHER, FRYMASTER DEAN AND ITS AFFILIATES WILL NOT BE LIABLE FOR ANY CLAIMS, DAMAGES OR EXPENSES INCURRED BY THE CUSTOMER WHICH ARISE DIRECTLY OR INDIRECTLY, IN WHOLE OR IN PART, D
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DANGER Improper installation, adjustment, maintenance or service, and unauthorized alterations or modifications can cause property damage, injury, or death. Read the installation, operating, and service instructions thoroughly before installing or servicing this equipment. Only qualified service personnel may convert this appliance to use a gas other than that for which it was originally configured. DANGER No structural material on the fryer should be altered or removed to accommodate placem
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WARRANTY STATEMENT The following applies to equipment sold to domestic (U.S.) markets. International warranty provisions will vary depending upon the country in which the equipment is sold. See your dealer for specific warranty provisions applicable to your location. For all international warranties, the customer is responsible for freight and duty charges. Frymaster, L.L.C. makes the following limited warranties to the original purchaser only for this equipment and replacement parts: A. WARR
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D. WARRANTY PROVISIONS - COOKING COMPUTER 1. Frymaster L.L.C. warrants the M-2000 Cooking Computer against defective material or workmanship for a period of three years from the original installation date. If the unit fails within the first year, warranty will cover part, labor and handling. If the part fails the second year, warranty will cover part and handling only. Labor is charged to the store. The third year, warranty will cover the part only. No labor or handling will be covered. 2. D
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BIH52 / MH52 SERIES GAS FRYERS TABLE OF CONTENTS CHAPTER 1: Introduction 1.1 General .............................................................................................................................. 1-1 1.2 Safety Information............................................................................................................. 1-1 1.3 Computer Information....................................................................................................... 1-2 1.4 European Co
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BIH52 / MH52 SERIES GAS FRYERS TABLE OF CONTENTS 3.9 Probe Resistance Chart.................................................................................................... 3-35 3.10 Simplified Wiring Diagrams ........................................................................................... 3-37 3.11 Principle Wiring Connections ......................................................................................... 3-42 3.12 Main Wiring Diagrams....................................
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CHAPTER 1: INTRODUCTION 1.1 General Read the instructions in this manual thoroughly before attempting to service this equipment. This manual covers all configurations of models MH52 and BIH52 fryers built since December 1995. Models designated MH52 do not have built-in filtration systems. Models designated BIH52 are equipped with FootPrint III built-in filtration systems. H52 Series fryers feature deep cold-zones and easy to clean open frypots. The fryers are controlled by multi-product cook
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1.3 Computer Information This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. While this device is a verified Class A device, it has been shown to meet the Class B limits. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses and can radiate radio frequency energy and, if not installed and
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CHAPTER 2: INSTALLATION INSTRUCTIONS 2.1 General Installation Requirements NOTE: PROPER INSTALLATION IS ESSENTIAL FOR EFFICIENT, TROUBLE-FREE OPERATION OF YOUR FRYER. ANY UNAUTHORIZED ALTERATIONS MADE TO THIS EQUIPMENT WILL VOID THE FRYMASTER WARRANTY. Upon arrival, inspect the fryer carefully for visible or concealed damage. (See Shipping Damage Claim Procedure in Chapter 1.) CLEARANCE AND VENTILATION The fryer(s) must be installed with a 6” (150 mm) clearance at both sides and back when
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NATIONAL CODE REQUIREMENTS The type of gas for which the fryer is equipped is stamped on the data plate attached to the inside of the fryer door. Connect a fryer stamped “NAT” only to natural gas, those stamped “PRO” only to propane gas, and those stamped “MFG” only to manufactured gas. Installation shall be made with a gas connector that complies with national and local codes, and, where applicable, CE codes. Quick-disconnect devices, if used, shall likewise comply with national, local, and,
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The user may find the booklet “How to Identify and Resolve Radio-TV Interference Problems” help- ful. It is prepared by the Federal Communications Commission and is available from the U.S. Gov- ernment Printing Office, Washington, DC 20402, Stock No. 004-000-00345-4. 2.2 Caster/Leg Installation Depending upon the specific configuration ordered, your fryer may have been shipped without in- stalled casters or legs. If casters or legs are installed, you may skip this section and proceed to sec- t
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c. Place the fryer power switch in the OFF position. Verify that the power and heat lights are out, or that the display shows “OFF”. 5. Refer to the data plate on the inside of the fryer door to determine if the fryer burner is config- ured for the proper type of gas before connecting the fryer quick-disconnect device or piping from the gas supply line. 6. Verify the minimum and maximum gas supply pressures for the type of gas to be used in accor- dance with the accompanying tables. CE Standard
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2.4 Connection to Gas Line The H52 Series has received the CE mark for the countries and gas categories indicated in the accompanying table. NOTE: The nominal heat input (Qn) is 21kW except for AT, DE, LU, and for category 3B/P under 50 mbar, which is 23kW. CE Approved Gas Categories by Country* COUNTRIES CATEGORIES GAS PRESSURE (mbar) G20 20 AUSTRIA (AT) II 2H3B/P G30, G31 50 I G20, G25 20, 25 2E(R)B BELGIUM (BE) I G30, G31 28-30, 37 3+ G20 20 DENMARK (DK) II 2H3B/P G30, G31 30 G20, G25 20, 2
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Gas Connection Pipe Sizes (Minimum incoming pipe size should be 1 1/2" (38 mm)) 4 or more Gas Single Unit 2 - 3 Units units* Natural 3/4" (19 mm) 1" (25 mm) 1 1/4" (33 mm) Propane 1/2" (13 mm) 3/4" (19 mm) 1" (25 mm) Manufactured 1" (25 mm) 1 1/4" (33 mm) 1 1/2" (38 mm) * For distances of more than 20 feet (6 m) and/or more than 4 fittings or elbows, increase the con- nection by one pipe size. Before connecting new pipe to your unit, the pipe must be thoroughly blown out to remove any for- eign
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WARNING “Dry-firing” your unit will cause damage to the frypot. Always ensure that melted shortening, cooking oil, or water and boil-out solution is in the frypot before firing your unit for any extended period. 4. It is suggested that the burner manifold pressure be checked at this time by the local gas company or an authorized service agent. Refer to “Check Burner Manifold Pressure” on 3.4 of this manual for the proper procedure. The accompanying tables list the burner manifold gas press
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H52 Series Fryers manufactured for Non-CE countries use different burners for each type gas. The burners in fryers built for Propane gas have a special gray-colored coating on the burner tiles to en- able them to withstand the higher caloric value of the Propane gas. Burners designed for use in Pro- pane units may be used in natural gas applications, but not vice versa. Non-CE Gas Conversion Kits Natural Gas to Propane (LP) Gas Propane (LP) Gas to Natural Gas Full Vat: Part Number 826-1145 Fu
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CHAPTER 3: SERVICE PROCEDURES, TROUBLESHOOTING AND WIRING DIAGRAMS 3.1 Functional Description H52 Series fryers contain a welded stainless steel frypot that is directly heated by a high efficiency infrared burner system requiring approximately 43% less energy than conventional burners to cook the same volume. Self-contained combustion chambers (referred to as “burners”) are fitted into rails attached to the sides of the frypot, one on each side. Each combustion chamber is fitted with special c
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provide current to the ignition module. Circuitry in the ignition module sends 24VAC to the gas valve via a normally closed high-limit switch (and, in BIH52 fryers, a normally closed drain safety switch). Simultaneously, the module causes the ignitor to spark for 4 seconds to light the burner. A flame sensor verifies the burner is lit by measuring the flow of microamps through the flame. If the burner does not light (or is extinguished), current to the ignition module is cut, the gas valve cl
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FREQUENTLY USED TEST POINTS FOR INTERFACE BOARDS 806-3398 AND 106-0386 Meter Test Setting Pins Results 12VAC Power to Controller 50VAC Scale 1 and 3 on J3 or J2 12-18 24VAC Power to Right Module 50VAC Scale 8 on J3 and GROUND 22-28 24VAC Power to Left Module 50VAC Scale 8 on J1 and GROUND 22-28 120 VAC Power 250VAC Scale 11 on J3 and GROUND 110-125 120 VAC Power to Blowers 250VAC Scale 12 on J3 and GROUND 110-125 24VAC Power to Right High-Limit 50VAC Scale 9 on J3 and GROUND 22-28 24VAC Power to
