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3.1 GENERAL

This section contains information for you to test and familiarize 

yourself with the operation of the Steam-Tech Plus.

After the unit is completely assembled all packing materials re

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moves and all service connections are made, all systems must 

be gives a thorough check out before being put into operation. 

Be sure that the cooking compartments are empty and all pan 

support racks are in place. Confirm that all service connections 

are on. Select a cooking compartment to test. Close the cook

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ing compartment door and turn the timer knob to the OFF posi

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tion.

Illustration of the positions for the controls and indicators.

FIGURE 3.1 CONTROLS & INDICATORS

Note that your unit may come equipped with an independent 

POWER ON indicator located to the left of the power switch.

NOTE:

 

REpEAT  STEpS  IN  SECTION  3.2  THROUGH  3.7 

FOR  BOTH  THE  UppER  &  LOWER  COOKING  COmpART-

mENTS TO INSURE pROpER FUNCTIONING OF THE EN-

TIRE UNIT.

3.2 WARM UP

Push the POWER switch into ON position. The power light will 

come on immediately, along with the fan motor. You will hear 

water entering the unit through the solenoid valves filling both 

the steam generator and the tempering tank.

Once the water levels in the steam generator and tempering 

tank  have  reached  the  appropriate  level  the  solenoid  valves 

will close and the heater will energize. After a short time (

ap-

proximately 5 minutes, depending on heater voltage

), the green 

READY light will come on, indicating that the unit is ready to 

make steam.

3.3 STEAM DEMAND

Due to the unique nature of this design, it is important to under

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stand what the STEAM DEMAND system does. The STEAM 

DEMAND system is the means by which the Steam-Tech Plus 

monitors and creates steam. This system uses very sensitive 

sensors  to  monitor  the  minute  steam  fluctuations  inside  the 

cooking  compartment.  These  fluctuations  are  an  indicator  of 

how much steam energy the food inside the cooking compart

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ment  is  using.  The  sensors  control  the  heater,  insuring  that 

steam is creates only as fast as it will be accepted by the food 

inside the cooking compartment, no more no less.

The  system  can  be  monitored  by  observing  the  red  STEAM 

DEMAND indicator, located at the top of the control panel. The 

STEAM DEMAND indicator will light up red only when steam is 

called for and will cycle on an off throughout the cooking cycle.

3.4 STEAM MODE

Turn the MODE SELECT switch to the STEAM mode. Set the 

TIMER knob to 10 minutes. Immediately, the STEAM ON win

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dow, located near the top of the control panel, should light up 

green. At the same time, the STEAM DEMAND window should 

light up red. After a short time, the red STEAM DEMAND light 

will begin to cycle on and off, while the green STEAM ON light 

stays on continuously.

When the timer reaches 0 minutes, the buzzer will sound and 

both the STEAM ON and the STEAM DEMAND light will turn 

off. The buzzer is silenced by returning the TIMER knob to the 

OFF position. The green READY light will stay illuminated.

3.5 STEAM & HOLD MODE

Turn the MODE SELECT switch to the STEAM & HOLD mode. 

Set the TIMER knob to 10 minutes, immediately the STEAM ON 

window located near the top of the control panel, should light up 

green. At the same time, the STEAM DEMAND window should 

light up red. After a short time, the red STEAM DEMAND light 

will begin to cycle on and off, while the green STEAM ON light 

stays on continuously.

When the timer reached 0 minutes, the buzzer will sound and 

both the STEAM ON and the STEAM DEMAND lights will turn 

off. The buzzer is silenced by returning the TIMER knob to the 

OFF position. The green READY light will stay illuminated.

Wile the HOLD light is on, the cooking compartment will func

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tion as a holding cabinet, maintaining a safe food holding tem

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perature of approximately 160

O

F indefinitely. Each of the cook

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ing compartments has its own independent temperature gauge. 

The  cooking  compartment  temperature  gauges  are  mounted 

on the right hand side of the steam vent hoods, directly above 

the control panel for each of the cooking compartments.

3.6 CONSTANT STEAM MODE

The  CONSTANT  STEAM  button  overrides  all  other  cooking 

mode. When the CONSTANT STEAM button is depressed, the 

CONSTANT STEAM window, located next to the CONSTANT 

STEAM button will light up green. 

Immediately the STEAM ON window, located near the top of 

the control panel, should light up green. At the same time, the 

STEAM  DEMAND  window  should  light  up  red. After  a  short 

time the red STEAM DEMAND light will begin to cycle on and 

off, while the green STEAM ON light remains illuminated con

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tinuously.

NOTE: 

Even in the constant steam mode the heater will only 

create as much steam as will be accepted by the food inside 

the cooking compartment. No matter what mode has been se-

lected the red STEAm DEmAND indicator will cycle on and off.

3.1

3. INITIAL SYSTEMS INSPECTION

STEAM DEMAND INDICATOR LIGHT

STEAM INDICATOR LIGHT

TIMER KNOB

OFF

CONSTANT STEAM INDICATOR LIGHT

CONSTANT STEAM BUTTON

STEAM INDICATOR

READY INDICATOR LIGHT

CLEAN GENERATOR

POWER ON INDICATOR LIGHT

POWER SWITCH

MODE SELECTOR SWITCH

PILOT LIGHT

PILOT LIGHT

STEAM &

HOLD

INDICATOR

HOLD

INDICATOR

Содержание STEAM-TECH PLUS STP-6E

Страница 1: ...S MANUAL Printed in U S A 35 Garvey Street l Everett l MA l 02149 Tel 617 387 4100 l Toll Free 888 698 3188 Fax 617 387 4456 l Outside MA Fax 800 227 2659 E Mail CUSTSERV mfii com l Website www mfii com Form Number S 2464 01 07 An Employee Owned Company ...

Страница 2: ...l Control Board 5 3 6 MAINTENANCE 6 1 General 6 1 6 2 Daily Cleaning 6 1 6 3 Preventive Maintenance 6 1 6 4 Cleaning The Generator 6 1 6 4 1 Cleaning Instructions 6 1 Figure 6 1 Exterior Steal Metal Cover Panel Fasteners Parts List 6 2 6 5 Cleaning The Steam ventilation Ductwork 6 3 6 6 Electrical Box Service Access 6 3 Figure 6 2 Electrical Panel Assembly Parts List 6 4 Figure 6 3 Timer Settings ...

Страница 3: ...vels have been reached the heating element is energized When the water temperature 1 2 3 4 5 in the steam generator has reached 193O F the green READY light is illuminated indicating that the unit is now ready to make steam and all controls are functional Set the MODE SELECT switch to either STEAM or STEAM HOLD After selecting a mode the TIMER knob must be set to the desired cooking time for the g...

Страница 4: ... for future reference 2 2 SERVICE CONNECTIONS All service connections are made at the bottom of the unit in the 6 inch high space between the floor and the bottom of the cabinet Please see figure 2 1 and table 2 1 for service connec tions details and dimensions 2 2 1 WATER CONNECTIONS Before connecting the water to this unit have water supply analyzed to make sure that hardness is no greater than ...

Страница 5: ...t of the unit Slide the door upwards off the bottom hinge Remove the two 5 16 bolts that attach the bottom hinge to 1 2 3 4 5 the front of the unit NOTE The top hinge is slightly larger than the bottom hinge Remove the 4 black plastic hole plugs from the front unit Push the black hole plugs into the now vacant left upper and lower hinge mounting holes Reinstall the top larger hinge and bolts into ...

Страница 6: ...n while pushing the panel in towards the unit slide it down into position Replace screw Rotate the door 180O for mounting 11 12 13 Slide the remaining small hinge into the top door bear ing Slide the door and hinge assembly down onto the hinge which you have already mounted to the front of the unit Use the two 5 16 bolts to mount the top hinge into the right upper hinge mounting holes DO NOT COMPL...

Страница 7: ...TEAM ON win dow located near the top of the control panel should light up green At the same time the STEAM DEMAND window should light up red After a short time the red STEAM DEMAND light will begin to cycle on and off while the green STEAM ON light stays on continuously When the timer reaches 0 minutes the buzzer will sound and both the STEAM ON and the STEAM DEMAND light will turn off The buzzer ...

Страница 8: ...ill be heard as the cool air is evacuated from the cooking com partment and replaced with a fresh steam from the generator he unit will continue to cycle normally as it was before the door was opened NOTE Repeat steps in section 3 2 through section 3 7 for both the upper and lower cooking compartments to insure proper functioning of the entire unit before proceeding to the next sec tion shutdown 3...

Страница 9: ...le malfunction and the need for maintenance Continued use of the equipment without maintenance will create a potential for scalding 1 2 3 4 5 6 7 8 4 2 3 SHUT DOWN No special procedure is necessary for shutting the unit down Simply press the POWER switch into the OFF position All indi cator lights on the control panel will go out and the generator for the cooking compartment will drain The temperi...

Страница 10: ... INDICATOR LIGHT CONSTANT STEAM BUTTON STEAM INDICATOR READY INDICATOR LIGHT CLEAN GENERATOR POWER ON INDICATOR LIGHT POWER SWITCH MODE SELECTOR SWITCH PILOT LIGHT PILOT LIGHT STEAM HOLD INDICATOR HOLD INDICATOR FULLY FEATURED NOT FULLY FEATURED 4 2 4 OPERATION FIGURE 4 1 CONTROL PANEL ...

Страница 11: ...RTMENT SHOWN ITEM NO DESCRIPTION UPPER COMPARTMENT QTY LOWER COMPARTMENT QTY PART NO 1 A LA CARTE TRAY 1 1 E91 5782 2 COOKING COMPARTMENT DRAIN SCREEN 1 1 E91 5718 3 DRIP SPILL TROUGH SCREEN 1 1 E91 5769 4 LEFT PAN SLIDE 1 1 E91 5700 5 RIGHT PAN SLIDE 1 1 E91 5698 ...

Страница 12: ... drip spill trough screens by sliding the right side of the screens under the control panel housing Then swing the left hand side of the screen in towards the face of the unit until the screen is free to drop down into position Replace drain screen onto rear wall of cooking compart 1 2 3 4 5 6 7 8 ment by sliding it down onto its mounting tabs Replace a la carte tray by sliding it back until it dr...

Страница 13: ...fill cool solenoid valve Faulty tempering tank drain solenoid valve 1 2 3 Replace fuse If 120v is verified at the solenoid coil but the valve fails to open replace solenoid If 120v is verified at the solenoid coil but the valve fails to close replace solenoid 1 2 3 HEATER WILL NOT ENERGIZE Faulty generator water level controls Heater thermal fusable link blown 208 240 480 power supply is not conne...

Страница 14: ...ace if necessary If 120v is verified at the solenoid coil but the valve fails to open replace solenoid Check wiring 1 2 3 GENERATOR DOESN T DRAIN WHEN THE POWER SWITCH IS PRESSED INTO OFF POSITION Clogged or kinked generator drain line Clogged generator drain hole Faulty generator solenoid drain valve 1 2 3 Check to be sure that the generator drain line is not kinked and is free of debris Check to...

Страница 15: ...g the probes to terminals L2 and N O next to the water fill relay should show 120v Touching the probes to L2 and N C should show no voltage 1 2 3 4 1 Connect the jumper to terminals G and H After a delay of 4 5 seconds the relay should switch and the LED will go OFF Using the voltmeter touching the probes to terminals L2 and N O of the water fill relay should show no voltage Touching the probes L2...

Страница 16: ...pecifically for its applica tion and the use of other hardware may damage the equipment present a safety hazard and will void any warranty 1 2 3 4 5 6 7 8 9 The following sections set forth minimum preventive mainte nance procedures which must be completed periodically to as sure continued trouble free operation 6 4 CLEANING THE GENERATOR The Steam Tech Plus has an automatic indicator light which ...

Страница 17: ...RIPTION QTY PART NO 1 LEG BLACK ADJUSTABLE 4 E10 0631 2 FRONT COVER PANEL ASSEMBLY 1 E91 5767 3 REAR COVER PANEL ASSEMBLY 1 E91 5789 4 REMOVABLE VENT HATCH 1 E91 5777 5 SIDE COVER PANEL ASSEMBLY 2 E91 5778 FASTENERS 8 32 SLOTTED TRUSS HEAD MACHINE SCREW 3 8 LONG STAINLESS STEEL 22 E08 3492 ...

Страница 18: ...the bottom of the duct Looking at the unit from the rear the vertical exhaust duct it the one on the right 1 2 3 4 5 6 Using detergent and a damp cloth wipe clean the inside of the vent access hatch Reinstall vent access hatch onto the rear of the unit Using detergent and a damp cloth wipe clean the inside of the upper and lower steam vent hoods located on the front of the unit just above each of ...

Страница 19: ...AY 3PDT 2 08 6509 RYL 2 RELAY DPDT MAGNETIC LATCH 2 08 6510 RYL 3 RELAY DPDT 2 08 6508 RYL 4 RELAY SPDT 2 10 9174 RYL 5 MERCURY SWITCH 1 PHASE 2 08 6534 RYL 5 MERCURY SWITCH 3 PHASE 2 08 6513 SOK 1 2 RELAY SOCKET 4 08 6512 SOK 3 RELAY SOCKET 2 08 6511 SOK 4 RELAY SOCKET 2 10 9175 SOK 2 PUSHBOTTON 2 08 6517 TMR 1 TIMER SINGLE SHOT 2 08 6504 TMR 2 TIMER DELAY ON MAKE 2 08 6505 TMR 3 TIMER INTERNAL 2...

Страница 20: ...6 5 6 MAINTENANCE FIGURE 6 3 ...

Страница 21: ...6 6 6 MAINTENANCE FIGURE 6 4 PRINCIPLES OF OPERATION SCHEMATIC ...

Страница 22: ...6 7 6 MAINTENANCE FIGURE 6 5 SINGLE COMPARTMENT SYSTEM WIRING DIAGRAM ...

Страница 23: ...6 8 6 MAINTENANCE FIGURE 6 6 SINGLE COMPARTMENT SYSTEM WIRING DIAGRAM ...

Страница 24: ...djusting unless they are reversed Should the doors need realignment the procedure is as follows Open the cooking compartment door Loosen all 4 bolts 2 per hinge which mount the upper and lower hinge brackets to the face of the unit using a 5 16 wrench DO NOT REMOVE THE BOLTS Begin to retighten the 4 bolts so that they are snug against the face of the unit DO NOT COMPLETELY TIGHTEN THE BOLTS Slowly...

Страница 25: ...tment Gently open the cooking compartment door taking care not to move it out of position Tighten all 4 door hinge bracket mounting bolts using a 7 8 9 10 5 16 wrench Close and visually inspect the door again as described in step 8 6 8 2 DOOR LATCH TENSION ADJUSTMENT The cooking compartment door latch tension is preset at the factory and should not need adjusting unless the doors are revered Shoul...

Страница 26: ...ponents remove them as an assembly Tighten both nuts down until the springs are fully com pressed Back each nut off 5 turns Replace the door gasket mounting plate and insert as sembly Remount the large side panel 2 3 4 5 6 7 6 11 6 MAINTENANCE ITEM NO FIGURE 6 8 DOOR LATCH AND MAGNET SENSOR ASSEMBLY DESCRIPTION QTY PART NO 1 DOOR LATCH 1 E91 5746 2 DOOR SENSOR MAGNETIC REED SWITCH 1 E08 6308 3 DOO...

Страница 27: ...6 12 6 MAINTENANCE FIGURE 6 9 COOKING COMPARTMENT DOOR ASSEMBLY ...

Страница 28: ...aily operation This gasket may start to leak which will cause the steamer to malfunction Should the gasket begin to leak it should be replaced as follows Open the cooking compartment door Remove the 6 screws from the door gasket mounting plate on the inside of the door 1 2 Remove the door gasket mounting plate and the door gas ket Install new door gasket Market Forge Part Number 91 5286 into the d...

Страница 29: ...ing one of the louvers slide the panel upwards until the bot tom edge of the panel is free to swing away from the unit Slide the panel down until its top edge is clear of the top cap of the unit 1 Unscrew screen plug from valve and remove screen Clean screen and reassemble screen and screen plug into valve body Replace large side panel by placing the panel against the side of the unit Be sure that...

Страница 30: ...ON WHEN INSTALLING 3 E08 5021 5 ELBOW UNION 1 2 NPT BRASS 1 E09 4844 6 ELBOW 1 4 mNPT TO 1 4 HOSE BARB BRASS 5 E08 5005 7 ELBOW 1 8 mNPT TO 1 4 HOSE BARB BRASS 1 E08 5063 8 FLEXIBLE DRAIN TUBING 3 4 I D 2 5 LONG 1 E08 5013 9 FLEXIBLE DRAIN TUBING 3 4 I D 4 LONG 1 E08 5013 10 FLOAT SWITCH N C NOTE ORIENTATION WHEN INSTALLING 1 E08 5023 11 HOSE CLAMPS FOR 1 O D TUBING 6 E08 5014 12 PIPE STUD 1 2 mNP...

Страница 31: ...6 16 6 MAINTENANCE FIGURE 6 12 TEMPERING TANK ASSEMBLY ...

Страница 32: ...6 17 6 MAINTENANCE FIGURE 6 13 CHASSIS ASSEMBLY ...

Страница 33: ...13 4 40 SLOTTED PAN HEAD MACHINE SCREW 5 8 LONG ZINC PLATED 4 E08 3497 14 4 40 NYLOC HEX NUT ZINC PLATED 4 E08 3845 15 4 FLAT WASHER ZINC PLATED 4 E10 2524 16 8 32 SLOTTED PAN HEAD MACHINE SCREW 5 8 LONG ZINC PLATED 2 E10 1747 17 8 32 NYLOC HEX NUT ZINC PLATED 6 E08 3840 18 8 FLAT WASHER ZINC PLATED E08 4008 6 E08 4009 19 8 FLAT WASHER ZINC PLATED 6 E08 4008 20 10 32 SLOTTED PAN HEAD MACHINE SCREW...

Страница 34: ...6 19 6 MAINTENANCE FIGURE 6 14 TUBING ROUTING ...

Страница 35: ...S 13 T FITTING TO VACUUM BREAK 1 5 2 E08 5019 14 T FITTING TO BOTTOM COMPARTMENT LEFT PRESSURE SWITCH 6 5 1 E08 5019 15 T FITTING TO TOP COMPARTMENT RIGHT PRESSURE SWITCH 9 1 E08 5019 PVC TUBING CLEAR 1 2 I D 1 8 WALL CLAMP ALL CONNECTIONS EXCEPT AT Y FITTING 16 TEMPERING TANK TO Y FITTING 5 1 E08 5024 17 Y FITTING TO TOP DRIP TROUGH 29 1 E08 5024 18 Y FITTING TO BOTTOM DRIP TROUGH 15 1 E08 5024 C...

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