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Market Forge Industries MPS-3E Owner's Manual

Electric convection steamer
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OWNER'S MANUAL
ELECTRIC CONVECTION STEAMER
□
MODEL:
MPS-3E
INSTALLATION, OPERATION, MAINTEANCE, TROUBLE-SHOOTING, PARTS, WIRING
Form Number: S-6112
12/12
Printed in USA
35 Garvey Street, Everett, MA 02149
Telephone (617) 387-4100, (866) 698-3188
Fax (617) 387-4456, (800) 227-2659
0
custserv@mfii.com, www.mfii.com

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Summary of Contents for Market Forge Industries MPS-3E

  • Page 1 OWNER’S MANUAL ELECTRIC CONVECTION STEAMER □ MODEL: MPS-3E INSTALLATION, OPERATION, MAINTEANCE, TROUBLE-SHOOTING, PARTS, WIRING Form Number: S-6112 12/12 Printed in USA 35 Garvey Street, Everett, MA 02149 Telephone (617) 387-4100, (866) 698-3188 Fax (617) 387-4456, (800) 227-2659 custserv@mfii.com, www.mfii.com...
  • Page 2 IMPORTANT NOTES FOR INSTALLATION AND OPERATION This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. WARNING: Improper installation, operation, adjustment, alteration, service or maintenance can cause property damage, injury or death.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS 1.0 SERVICE CONNECTIONS ......1 ACCEPTABLE PAN SIZES ......9 Electrically Operated ........1 4.0 SUGGESTED COOKING GUIDELINES ..10 Pan Capacity ..........1 COOKING HINTS ........10 2.0 INSTALLATION INSTRUCTIONS ....2 PREPARATION ...........10 GENERAL ............. 2 FROZEN FOOD ITEMS ......10 UNPACKING ..........

  • Page 4: Service Connections

    4” 6” 2-1/2” connection to controls. Generator Water - 3/8” (10mm) OD tubing at 25-50 MPS-3E PSI. Cold Water - 3/8” (10mm) OD tubing at 25-50 PSI. CAUTION: Drain - 1” (25mm) IPS piped to open floor drain. Before connecting water to this unit, water supply NO SOLID CONNECTION TO FLOOR DRAIN.

  • Page 5: Installation Instructions

    The MPS-E steamers are single compartment electric pressureless steam cookers with an internal electric steam generator that maintains standby water temperature at approximately F. MPS-3E is rated 7.5 kW. MPS-6E is rated 12 kW. At high altitude locations a lower temperature is required to achieve atmospheric steaming.

  • Page 6: Plumbing Connections

    2.0 INSTALLATION INSTRUCTIONS (Continued) FIGURE 1 / Stand Dimensions WARNING: Disconnect the power supply to the appliance before cleaning or servicing. Make electrical connection through the 1-1/8" (29mm) diameter hole provided using 3/4" (19mm) trade size conduit. Refer to the wiring diagram located inside the right side panel. Use C minimum insulated wire.

  • Page 7: Adjustment For High Altitude Locations

    2.0 INSTALLATION INSTRUCTIONS (Continued) ADJUSTMENT FOR HIGH ALTITUDE LOCATIONS The steamer has been factory set so that when it is ON, and during the READY phase, it will maintain water temperature in the steam generator tank at approximately 205 F (96 C) (just below water boiling point).

  • Page 8: Water Quality

    2.0 INSTALLATION INSTRUCTIONS (Continued) WATER QUALITY The water supply connected to this steamer should contain no more than 2.0 grains of hardness per gallon with pH from 6.5 to 8.0. This degree of hardness and pH can easily be obtained with the use of a properly maintained water softener.

  • Page 9: Testing Procedures

    2.0 INSTALLATION INSTRUCTIONS (Continued) TESTING PROCEDURES CAUTION: Live steam and accumulated hot water in the compartment may be released when the door is opened. Once the steamer is installed and all mechanical connections have been made, thoroughly test the steamer before operation. Check that proper water, drain and electrical connections have been made.

  • Page 10: Operation Instructions

    3.0 OPERATION INSTRUCTIONS CONTROLS When lit, indicates steam generator READY LIGHT has reached 200 F (93 C) and is ready for the cooking cycle. COOKING When lit, indicates that a cooking PILOT LIGHT cycle is in progress. The Half Cycle button is pre- HALF CYCLE programmed to run for 1-1/2 TIMER...

  • Page 11: Before First Use

    3.0 OPERATION INSTRUCTIONS (Continued) BEFORE FIRST USE Clean the protective oils from all surfaces of the steamer. Use a non-corrosive, grease dissolving commercial cleaner, following manufacturer’s directions. Rinse thoroughly and wipe dry with a soft clean cloth. PREHEAT Turn the main power switch ON. When the READY light comes on, set the timer to 1 minute to preheat the compartment.

  • Page 12: Steam Cooking

    (cans placed in 12 inch by 10 inch solid pans) or the contents may be poured into solid pans. ACCEPTABLE PAN SIZES The steamer accommodates combinations of 12" x 10" pans, solid or perforated. Number of Pans Accommodated Model Depth of Pan 1" 2.5" 4" 6" MPS-3E...

  • Page 13: Suggested Cooking Guidelines

    4.0 SUGGESTED COOKING GUIDELINES COOKING HINTS Your steamer efficiently cooks vegetables or other foods for immediate serving. Steam cooking should be carefully time controlled. Keep hot food holding-time to a minimum to produce the most appetizing results. Prepare small batches, cook only enough to start serving, then cook additional amounts to meet demand.

  • Page 14: Cooking Guide

    4.0 SUGGESTED COOKING GUIDELINES Cooking Guide TIMER SETTING WEIGHT PER PAN PRODUCT (Minutes) Eggs 10 - 12 4 dozen Scrambled 2 dozen Hard Cooked 1 lb Rice, Long Grain (Cover with 4 cups water/lb.) 1 lb Pasta (Place perforated pan inside solid pan, cover with cold water.) Spaghetti, Regular/Vermicelli 12 -15...
  • Page 15 Cooking Guide TIMER SETTING WEIGHT PER PAN PRODUCT (Minutes) Scallops, Fresh 1.5 lb Scrod Fillets, Fresh 3 - 5 2 lb VEGETABLES Asparagus Spears Frozen 10 - 12 Fresh 2 lb Beans Green, 2" Cut, Frozen/Fresh 2 lb Lima, Frozen 2 lb Broccoli Spears, Frozen...

  • Page 16: Preventive Maintenance

    5.0 PREVENTIVE MAINTENANCE INTRODUCTION A good preventive maintenance program with the daily cleaning procedure. Additional preventive maintenance operations are presented in this section. In establishments that employ full-time maintenance personnel, the tasks described can be assigned to them. For other installations, tasks requiring mechanical or electrical experience should be performed by an authorized service agency.

  • Page 17: Cleaning (Weekly)

    5.0 PREVENTIVE MAINTENANCE (Continued) Leave door slightly open when steamer is not in use. CAUTION: Do not use cleaning agents that are corrosive. Contact the factory, the factory representative or a local service NOTICE: company to perform maintenance and repairs should the appliance malfunction.

  • Page 18: Generator Deliming Instructions15

    5.0 PREVENTIVE MAINTENANCE (Continued) Before beginning deliming procedures, ensure that water is not overflowing into the cooking compartment. WARNING: Read and follow instructions on the TOTAL CONCEPT bottle. Use plastic or rubber gloves to avoid skin contact. If TOTAL CONCEPT comes in contact with skin, rinse with clean water. CAUTION: Do not open deliming caps when unit is in operation.

  • Page 19: Stainless Steel

    5.0 PREVENTIVE MAINTENANCE (Continued) STAINLESS STEEL To remove normal dirt, grease or product residue from stainless steel, use ordinary soap and water (with or without detergent) applied with a sponge or cloth. Dry thoroughly with a clean cloth. Never use vinegar or any corrosive cleaner. To remove grease and food splatters or condensed vapors that have baked on the equipment, apply cleanser to a damp cloth or sponge and rub cleanser on the metal in the direction of the polishing lines on the metal.

  • Page 20: Trouble-Shooting

    6.0 TROUBLE-SHOOTING GENERAL TROUBLESHOOTING GUIDE PROBLEM PROBABLE CAUSE REMEDY Cooking indicator light fails to Main power circuit breaker Locate external circuit light with Timer set. tripped. breaker for incoming power Door interlock switch and place in ON position. contacts not closed. Shut cooker door to close Door interlock switch faulty.
  • Page 21 PROBLEM PROBABLE CAUSE REMEDY Faulty timer motor. Replace timer. Timer dial not turning. Faulty wiring. Inspect condition of wire and tightness of all connections. Correct as needed. Buzzer fails to sound at end of Timer contacts faulty. Replace timer. Buzzer faulty. Replace buzzer.
  • Page 22 PROBLEM PROBABLE CAUSE REMEDY Damaged door gasket. Check gasket for cuts and Clogged compartment replace if necessary. drain or plumbing. Remove screen and clean drain line or plumbing. Water flows into cooking Level control has failed. Replace. compartment. Water has very high Replace level control with resistance.
  • Page 23 PROBLEM PROBABLE CAUSE REMEDY Water not being supplied to Water supply off. Check incoming water Generator. Supply water pressure too valve is on. low. Call supply agency. Defective water solenoid Replace or clean. valve. Check and correct. Level Probe shorted. Replace.

  • Page 24: Electrical Fault Isolation Guide

    6.0 TROUBLE-SHOOTING (Continued) ELECTRICAL FAULT ISOLATION GUIDE FAILURE FAULT LOCATION 1. Will not operate in either HOLD or 60-MINUTE a. Incoming power. TIMER positions. b. Timer. c. Door interlock switch. d. Wiriing. 2. Operating in HOLD position but not in 60-MINUTE a.

  • Page 25: Door Interlock Switch

    6.0 TROUBLE-SHOOTING (Continued) Door Interlock Switch Malfunction of the cooker door interlock switch prevents timer indicator lights from turning on and steam generator from operating when the timer dial is set. If steam does not enter the compartment and the cooking indicator light fails to turn on with the door latch securely engaged, the fault may be in the door interlock switch.

  • Page 26: Adjustments

    7.0 ADJUSTMENTS WARNING: At least twice a year, have an authorized service person clean and adjust the unit for maximum performance. ADJUSTMENT FOR HIGH ALTITUDE LOCATIONS The steamer has been factory set so that when it is ON, and during the READY phase, it will below water boiling point).

  • Page 27: Parts

    8.0 PARTS FIGURE 3 / Exploded View...
  • Page 28 ITEM PART NO. DESCRIPTION QTY. 97-6299 Hinge Rod 97-7223 Pan Rack 97-6340 Hanger Pin Assembly 97-6270 Pilot Light, Round, Green 250V 97-6271 Pilot Light, Round, Red 250V 08-3826 Knob 97-6272 Switch, Rocker 250V 08-7521 Temperature Indicator 97-7224 Decal, Control Panel 97-6301 Push Rod c/w Retaining Rings 97-6178...
  • Page 29 ITEM PART NO. DESCRIPTION QTY. 97-6232 Latch Assembly (3900) 19A. 97-7146 Spacer, Door Upper 19B. 97-6735 Spacer, Door Lower 97-6261 Door Bushing 97-6262 Door Panel 97-6264 Door Gasket 97-6266 Door Gasket Plate 97-6233 Binding Head Screw with Special Dimple #10 - 32 UNF x 1/2 97-7232 Right Hand Panel 97-6191...
  • Page 30 ITEM PART NO. DESCRIPTION QTY. 97-6277 Liquid Level Control Board, 1M, OHM 97-6179 Calibrated Dial Assembly 97-5048 Thermostat, Operating 97-6278 Thermostat, High Limit 43.** 98-6189 Contactor, 4 Pole, 208, 220, 240V 97-5609 Contactor, 380, 415, 480, 600V 97-6226 Bulkhead Union, Brass, 3/8 C 97-7236 Brass Bushing, 3/4 MPT x 1/2 FPT 45B.
  • Page 31 ITEM PART NO. DESCRIPTION QTY. 97-6319 Element Gasket 64.** 97-6565 Element Assembly, 7.5 kW, 208V 97-6353 Element Assembly, 7.5 kW, 380/220V 97-6659 Element Assembly, 7.5 kW, 415/240V 97-6654 Element Assembly, 7.5 kW, 480V (277) 97-6655 Element Assembly, 7.5 kW, 600V (347) 97-6298 Hex Nut, 1/4 - 20 UNC 97-6593...
  • Page 32 ITEM PART NO. DESCRIPTION QTY. 98-6187 Fuse Holder (380, 415, 480, 600V) 82.* 97-5616 Transformer, 380/220V, 50/60 Hz 100VA 97-5616 Transformer, 415/240V, 50/60 Hz. 100VA 97-5613 Transformer, 480/240V, 60 Hz. 100VA 98-6191 Transformer, 600/240V, 60 Hz 100VA NOT SHOWN ** SELECT AS REQUIRED...

  • Page 33: Wiring

    9.0 WIRING...
  • Page 34 9.0 WIRING (Continued)
  • Page 35 9.0 WIRING (Continued)
  • Page 36 9.0 WIRING (Continued)
  • Page 37 9.0 WIRING (Continued)
  • Page 38 9.0 WIRING (Continued)

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