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Market Forge Industries PLUS-TWELVE ST-12, Installation, Operation & Maintenance Manual, Page: 29 / 29

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Market Forge Industries PLUS-TWELVE ST-12 Installation, Operation & Maintenance Manual Download Page 29

7-6

SECTION 7 ILLUSTRATED PARTS LIST

Figure 7-4 Condenser Assembly

ITEM

PART

NO.

NO.

DESCRIPTION

QTY.

1

10-5859

VALVE, STEAM SOLENOID

1

2

08-4892

COUPLER, BRS 3/8ODX1/2THRD NPT

2

3

10-2885

UNION, FEMALE 1/2 IPS

1

4

10-2849

NIPPLE, CLOSE 1/2" NPT BRS

2

5

98-1477

COUPLERBRS,BARB 3/8"X3/8" NPT

1

6

08-6581

TEE, MALE 1/2" NPTX FEML 1/2" BRANCH

1

7

10-3739

1/2"X 3/8 REDUCING BUSHING

1

8

98-1630

WELDMENT, COLDH20/STEAM VALVE

1

9

10-1055

TEE, 3/8" ALL AROUND

1

10

10-3644

PLUG, SQ HEAD 3/8"IPS BRASS

1

11

08-7525

NIPPLE, CLOSE 3/8" NPT  BRASS

2

12

08-6498

VALVE, 3/8" NPT, COLDW COND

1

13

08-4912

COUPLER, BARB 5/8"ODX1/2" IPS

1

14

08-7962

COUPLER, BARB 5/8"ODX3/8"THD

1

15

98-1477

COUPLER, BRS BRARB,3/8"X3/8" THD NPT

1

Summary of Contents for PLUS-TWELVE ST-12

Page 1: ...LVETM PRESSURELESS STEAM COOKER Warning Improper Installation adjustment alteration service or maintenance can cause property damage injury or death Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment For Your Safety Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance MODE...

Page 2: ......

Page 3: ...V alves 5 4 6 Indicator Lights 5 4 7 Cooking Compartment Thermostat Switch PARAGRAPH 5 4 8 Buzzer 5 4 9 Cold W ater Condener Circuit 5 4 10 Wiring SECTION 6 MAINTENANCE 6 1 General 6 2 Preventive Maintenance 6 2 1 Cooking Compartment Cleaning 6 3 Repair Replacement 6 3 1 Door Latch Tension Adjustment 6 3 2 Door Handle Tension Adjustment 6 3 3 Door Gasket Replacement 6 3 4 Exterior Panel Removal 6 ...

Page 4: ...wing steam to flow into the compartment When steam flowing inside the compartment has raised the interior temperature to 195 F the contacts of a thermostatic switch automatically close completing the circuit to the timer motor and starting the selected cooking time period At the end of the set interval timer contacts switch to shut off the cooking operation and sound a signal buzzer The buzzer is ...

Page 5: ...he cooker only are included in Subsection 2 5 2 If the cooker fails to perform as described consult Table 5 1 of the Trouble Shooting Guide for corrective action If difficulty arises with the boiler reference the separate service and parts manual for that equipment Before making this check out the operator must be thoroughly familiar with the operating procedures in Section 3 and with the function...

Page 6: ...the door latch assembly from the face of the unit The 2 nuts mounting the door latch are located behind the face of the unit and must be accessed where the right side panel was removed 12 Remove the two white hole plugs from the left door latch mounting holes and insert them into the right door latch mounting holes where the door latch assembly was originally mounted 13 Rotate the door latch assem...

Page 7: ...TCH MOUNTING HOLES INTERLOCK ASSEMBLY POSITION WHEN DOOR IS REVERSED LOWER LEFT HINGE MOUNTING HOLES TOP RIGHT HINGE MOUNTING HOLES INTERLOCK ASSEMBLY ORIGINAL POSITION DOOR LATCH ASSEMBLY ORIGINAL POSITION LOWER RIGHT HINGE MOUNTING HOLES Figure 2 1 Typical Door Layout ...

Page 8: ...0 minute timer for timed cooking 4 Set appropriate timer to the required cooking time see pages 3 3 to 3 6 5 Turn off buzzer which sounds to indicate cooking is complete by setting timer dial 1 to the OFF position 6 Open door sightly at first letting most of the steam out of the compartment and then fully open the door 7 Unload by sliding pans of food from pan supports taking care to avoid hitting...

Page 9: ... 55 60 CONSTANT OFF Figure 3 1 Controls Indicators 3 4 2 Drip Spill Trough Drainage The ST 12 Pressureless Steam Cooker has a drip spill trough below the cooking compartment door It will catch any condensate gathering on the front of the unit when the door is opened TABLE 3 1 CONTROLS INDICATORS See Figure 3 1 REF NUMBER 1 2 3 4 DESCRIPTION Timer Constant Steam Indicator Light Digital Timer Mode S...

Page 10: ...king they can be prepared closer to serving time insuring maximum freshness 11 Steam cooked foods have a higher percent yield more portions per dollar spent 12 Food may be served from the same pan in which it is steam cooked thus reducing food breakage since there is no extra handling or transferring of food from cooking pans to serving pans It also reduces pot washing tasks 13 Some important adva...

Page 11: ...oz 85 g 30 3 oz 85 g 30 3 oz 85 g 30 3 oz 85 g 30 4 oz 115 g 50 3 oz 85 g Approx Number Cooked Servings Per Pan 15 6 oz 170 g 75 3 oz 85g 50 3 oz 85 g 10 6 oz 170 g 10 6 oz 170 g Approx Number Cooked Servings Per Pan 25 30 3oz 85 g Approx Frozen Weight Per Pan 7 1 2 lbs 3 4 kg 6 lbs 2 7 kg 6 lbs 2 7 kg 7 1 2 lbs 3 4 kg 6 lbs 2 7 kg 7 1 2 lbs 2 7 kg 6 lbs 2 7 kg 6 lbs 2 7 kg 7 1 2 lbs 3 4 kg 7 1 2 ...

Page 12: ...ervings Per Pan 15 20 2 oz Protein 55 g 25 30 2 oz Protein 55 g 20 25 2 oz Protein 55 g 12 15 2 oz 55 g 35 40 2 oz 55 g 20 25 2 oz Protein 55 g 20 25 2 oz Protein 55 g Approx Frozen Weight Per Pan 6 lbs 2 7 kg 7 1 2 lbs 3 4 kg 6 lbs 2 7 kg 9 lbs 4 kg 6 lbs 2 7 kg 1 doz 5 lbs 2 25 kg 6 lbs 2 7 kg 5 lbs 2 25 kg 10 lbs 4 5 kg 10 lbs 4 5 kg 3 lbs 1 4 kg 7 lbs 3 2 kg 9 lbs 4 kg 5 lbs 2 25 kg Weight Per...

Page 13: ...Protein 55 g 55 65 2 oz Protein 55 g Approx Number Cooked Servings Per Pan 36 1 egg each 48 1 egg each 60 65 3oz 85 g 40 45 4oz 115 g Approx Frozen Weight Per Pan 15 lbs 6 8 kg 6 lbs 2 7 kg 6 lbs 2 7 kg 20 22 lbs 9 10 kg 10 12 lbs 4 5 5 kg Weight Per Pan 3 dozen 4 dozen 4 lbs 1 8 kg 3 lbs 1 4 kg Recommended 12 x 20 1 1 Perforated Pan 2 1 2 65mm 2 1 2 65mm 2 1 2 65mm 2 1 2 65mm 2 1 2 65mm Recommend...

Page 14: ...ompartment Steam continues to flow through the compartment in this manner until the control circuit closes the solenoid valve 4 2 2 Steam Exhaust and Drain Lines Perforated strainers at the drain line opening inside the compartment allow only steam condensation and liquid cooking drainage to enter Prior to discharge into the boiler drain system steam is converted to water by the cold water condens...

Page 15: ...zer coil is energized to sound the buzzer Movement of the timer dial to the OFF position opens the contact to the buzzer coil to shut it off 4 3 1 4 Door Interlock Switch The interlock switch is a single pole proximity switch with normally open contacts The switch is operated by the nor mally open contacts The switch is operated by the proximity of a magnet within the door When the door is open th...

Page 16: ...W INTO COMPARTMENT AND OR BUZZER FAILS OT SOUND AT END OF TIMER SETTING 5 STEAM FLOWS CONTINUSLY FROM BOILER OR DIRECT CONN ECTED STEAM CONTROL DRAIN LINE WITH COOKER IN OPERATION PROBABLE CAUSE a Power to Cooker OFF b Door Interlock Switch contacts not closed c Door Interlock Switch faulty d Indicator Light burned out e Faulty Timer contacts f Faulty Wiring a Faulty Steam Solenoid Valve b Faulty ...

Page 17: ...n off power to the cooker at external circuit breaker 2 Disconnect all five wires from timer terminals see Figure 5 1 3 Connect an ohmmeter between terminals 1 and 3 4 Rotate timer dial beyond the 0 Minute point any setting to obtain a reading of zero ohms on the ohmmeter If zero ohm reading cannot be obtained timer contacts are defective and the timer must be replaced 5 Move ohmmeter leads to ter...

Page 18: ... WHT 36 RELAY R1 31 WHT WHT WHT 47 BLK BLK BLK BLK 5 27 59 5 60 13 14 56 56 55 11 11 12 12 1 1 29 60 51 9 28 9 14 101 102 59 33 13 51 30 2 9 3 2 9 3 4 1 2 3 7 8 10 9 6 5 4 TIMER TB1 60 MIN TIMER TMR1 UPPER A B A B A B A B 11 48 47 186 BLK EXISTING WIRES BOILER CONTROL BOX AUTOMATIC BOILERS TO 120 240V SUPPLY BOX TO 120 240V SUPPLY BOX TO 120 240V SUPPLY BOX L1 N OPTIONAL 11 3 L1 8 8 P1 J1 10 10 7 ...

Page 19: ...5 4 SECTION 5 TROUBLE SHOOTING Figure 5 1 Wiring Diagram Digital Controls Model ST 12 NOT AVAILIABLE AT THIS TIME NOT AVAILIABLE AT THIS TIME ...

Page 20: ...r dial returned to 0 Minute position the fault may be a defective buzzer Buzzer operation is verified using an AC volt meter at the buzzer coil connections with input power on and selector switch and coinciding timer dial set at the 0 Minute position If voltage is 120 volts the fault is in the buzzer which must be replaced If 120 volts is not present the fault is in the wiring or control component...

Page 21: ...5 6 SECTION 5 TROUBLE SHOOTING Figure 5 3 Ladder Diagram Plus 12 1 Compartment ...

Page 22: ...parts and associated exploded views of the ST 12 Cooker In most cases disassembly procedures will be obvious from the exploded views Instructions follow for procedures that are not readily apparent 6 3 1 Door Latch Tension Adjustment CAUTION Shut off main electrical power to unit Procedure 1 Open the cooking compartment door 2 Remove the control panel by removing the eight mounting screws and disc...

Page 23: ...boiler unit is off before removing side panels Access to all internal plumbing and electrical assemblies is from the right side and right front The left side panel is removed by removing the bottom screw and pushing up on the panel until the lower lip disengages the frame The panel is shown as item 25 in Figure 7 1 The electric control panel shown in Figure 7 3 may also be removed as a unit by rem...

Page 24: ... Ordering Information Orders for repair parts should be directed to the nearest authorized parts distributor For a current Market Forge Authorized Parts Distributor List contact Product Service Department Market Forge Industries Inc 35 Garvey Street Everett Massachusetts 02149 Telephone 617 387 4100 All orders should contain the Market forge part number s the part description s and the model and s...

Page 25: ...JET PIPE 2 17 91 6492 LATCH DOOR 1 18 08 4600 SPRING COMPRESSION 2 19 91 7684 STRAINER CAVITY 1 20 98 1605 WELD ASSY MIDDLE RACK 1 21 91 7699 RACK SIDE 2 22 10 4586 NUT 1 2 IPS S S W TEFLON 3 23 10 8105 THERMOSTAT SNAP DISC PROBE TYPE 1 24 10 3343 NUT BRASS 1 2 IPS 1 25 10 1956 SCREW TAPTIGHT 8 32 X 3 8 20 26 10 2571 NUT LOCK 8 32 17 27 08 1204 PLUG HOLE WHITE 2 28 10 2184 SCREW HEX HEAD 10 32 3 4...

Page 26: ...7 3 SECTION 7 ILLUSTRATED PARTS LIST Figure 7 1 Cabinet Assembly ...

Page 27: ...ly ITEM PART NO NO DESCRIPTION QTY 1 91 7386 OUTER DOOR 1 2 91 7387 INNER DOOR 1 3 91 7388 GASKET RETAINING PLATE 1 4 91 7389 DOOR GASKET 1 5 91 5745 DOOR HANDLE 1 6 09 1608 STRIKER 1 7 08 5027 MAGNET 1 8 91 5901 MAGNET BRACKET 1 9 08 4600 COMPRESSION SPRING 2 ...

Page 28: ...Panel Assembly ITEM PART NO NO DESCRIPTION QTY 1 98 1706 CONTROL PANEL 1 2 98 1698 ARTWORK CONTROL PANEL 1 3 08 6464 60 MIN TIMER 2 4 08 6541 TERMINAL STRIP 2 5 91 6471 BRACKET TERMINAL STRIP 2 6 10 7395 BUZZER 2 7 08 3826 KNOB TIMER 2 8 10 5052 LIGHT RED 2 ...

Page 29: ...5 98 1477 COUPLERBRS BARB 3 8 X3 8 NPT 1 6 08 6581 TEE MALE 1 2 NPTX FEML 1 2 BRANCH 1 7 10 3739 1 2 X 3 8 REDUCING BUSHING 1 8 98 1630 WELDMENT COLDH20 STEAM VALVE 1 9 10 1055 TEE 3 8 ALL AROUND 1 10 10 3644 PLUG SQ HEAD 3 8 IPS BRASS 1 11 08 7525 NIPPLE CLOSE 3 8 NPT BRASS 2 12 08 6498 VALVE 3 8 NPT COLDW COND 1 13 08 4912 COUPLER BARB 5 8 ODX1 2 IPS 1 14 08 7962 COUPLER BARB 5 8 ODX3 8 THD 1 15...

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