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Jet-tech F18 Technical Manual
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Jet-tech F18 Technical Manual

High-temp undercounter dishwasher
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F
18
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F18-D
P
T chn
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l Man al
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May 2004 Rm

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Summary of Contents for Jet-tech F18

  • Page 1 & F18-D T chn l Man al May 2004 Rm...
  • Page 2 INDEX PAGE 3 OVER VIEW OF TOP CONTROL PANEL PAGE 4 DOOR SWITCH 20548 PAGE 5 POWER SWITCH 20044, 20500 PAGE 6 PRESSOSTAT 20058 PAGE 7 WATER LEVEL SYSTEM PAGE 8 SOLENOID VALVE 20569 PAGE 9 THERMOSTAT, RINSE 20596 PAGE 10 THERMOSTAT, WASH 20570 PAGE 11 CONTACTOR RELAY 20104 PAGE 12 START SWITCH 20519 PAGE 13 START RELAY 20067...
  • Page 3 1 888 275 4538 - 611 F-18 514 737 9701 - 611 FAX 514 737 2792 Electrical component location - Top view 20570 Wash thermostat 20596 Rinse Thermostat 20104 Contactor relay 20532 Terminal block 20067 Start relay 20567 20058 Capacitor Pressostat 20518 Timer...

  • Page 4: Power Switch

    POWER SWITCH 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 PD - Soap Pump TL- Power Switch BR - Micro Relay coil PS- Pressure Switch BCB - Booster Contactor coil SW2- Drain Switch RV - Wash Tank Heater Element CR1 + CR2 - Micro Relay Switches RB - Booster Tank Heater Element...
  • Page 5 PRESSOSTAT 20058 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TL- Power Switch PD - Soap Pump PS- Pressure Switch BR - Micro Relay coil BCB - Booster Contactor coil SW2- Drain Switch RV - Wash Tank Heater Element CR1 + CR2 - Micro Relay Switches RB - Booster Tank Heater Element...
  • Page 6 Water Level System 1 888 275 4538 - 611 514 737 9701 - 611 The dishwasher water level is control by a pressure switch or pressostat. A cup (grey plastic cylinder, #10528) located at the back of the unit will keep an air pocket which will be pressurized as the water level increases.
  • Page 7 Fill System & Rinse System The dishwasher fill and rinse systems is practically the same system as they both used the same circuit. The only difference is what is sending the signal to the water solenoid valve. During the fill cycle, the water solenoid gets its signal from the pressostat. When the pressostat is satisfied, it cuts the signal to the solenoid valve and sends power to the thermostats and the timer.
  • Page 8 THERMOSTAT 20596 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 Green paint TL- Power Switch PD - Soap Pump PS- Pressure Switch BR - Micro Relay coil SW2- Drain Switch BCB - Booster Contactor coil CR1 + CR2 - Micro Relay Switches RV - Wash Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 9 THERMOSTAT 20570 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 Orange paint TL- Power Switch PD - Soap Pump PS- Pressure Switch BR - Micro Relay coil SW2- Drain Switch BCB - Booster Contactor coil CR1 + CR2 - Micro Relay Switches RV - Wash Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 10 CONTACTOR RELAY 20104 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TL- Power Switch PD - Soap Pump PS- Pressure Switch BR - Micro Relay coil SW2- Drain Switch BCB - Booster Contactor coil CR1 + CR2 - Micro Relay Switches RV - Wash Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 11 DOOR SWITCH 20548 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TL- Power Switch PD - Soap Pump PS- Pressure Switch BR - Micro Relay coil SW2- Drain Switch BCB - Booster Contactor coil CR1 + CR2 - Micro Relay Switches RV - Wash Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 12 Start Switch 20519 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TL- Power Switch PD - Soap Pump PS- Pressure Switch BR - Micro Relay coil SW2- Drain Switch BCB - Booster Contactor coil CR1 + CR2 - Micro Relay Switches RV - Wash Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 13 RELAY 20067 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TL- Power Switch PD - Soap Pump PS- Pressure Switch BR - Micro Relay coil SW2- Drain Switch BCB - Booster Contactor coil CR1 + CR2 - Micro Relay Switches RV - Wash Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 14 TIMER 20518 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TL- Power Switch ELB - Solenoid Coil PS- Pressure Switch PD - Soap Pump SW2- Drain Switch BR - Micro Relay coil CR1 + CR2 - Micro Relay Switches BCB - Booster Contactor coil M1 + M2 + M3: Timer Cam RV - Wash Tank Heater Element...
  • Page 15 TIMER 20518 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TIMER SEQUENCE 1- When the Start Cycle TC (20519) button is depressed. The small contactor relay is energized and closes contacts CR1 (20067) and CR2 (20067). This has two purposes.
  • Page 16 40229 20588 RINSE-AID DRAIN PUMP DETERGENT PUMP PUMP FRONT 60137 Drain Plug 60004 20569 Gasket WATER SOLENOID VALVE 15689 BOOSTER TANK 40240 RINSE WATER WASH PUMP 15019 BOTTOM HUB WASH-ARM SUPPORT 20582 TERMINAL BLOCK 10349 (F18-DP) 10351 (F18) DRAIN CONNECTION...

  • Page 17: Wash System

    1 888 275 4538 - 611 514 737 9701 - 611 WASH SYSTEM FAX 514 737 2792 TL- Power Switch BR - Micro Relay coil PS- Pressure Switch BCB - Booster Contactor coil SW2- Drain Switch RV - Wash Tank Heater Element CR1 + CR2 - Micro Relay Switches RB - Booster Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 18 1 888 275 4538 - 611 514 737 9701 - 611 WASH SYSTEM FAX 514 737 2792 Rinse Wash...
  • Page 19 1 888 275 4538 - 611 514 737 9701 - 611 WASH SYSTEM FAX 514 737 2792 WASH PUMP . . . 40240 9A-9BMECHANICAL SEAL ..40030 7A-7BPUMP BOTTOM HOUSING ..40218 PUMP HOUSING .
  • Page 20 DRAIN PUMP 40229 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 TL- Power Switch BR - Micro Relay coil PS- Pressure Switch BCB - Booster Contactor coil SW2- Drain Switch RV - Wash Tank Heater Element CR1 + CR2 - Micro Relay Switches RB - Booster Tank Heater Element M1 + M2 + M3: Timer Cam Switches...
  • Page 21 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 F18 Booster Do not Do not connect connect TL- Power Switch PS- Pressure Switch SW2- Drain Switch CR1 + CR2 - Micro Relay Switches M1 + M2 + M3: Timer Cam Switches...
  • Page 22 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792...

  • Page 23: Electrical Sequence

    1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 ELECTRICAL SEQUENCE As the unit is powered by the Power Switch (1), it energizes LL(2). The Pressure-switch PS energies the solenoid valve ELB (to fill the wash tank), the detergent pump PD and the drain pump DP.
  • Page 24 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 When the Booster thermostat TB is satisfied, it energizes the wash tank heater element RV by the wash thermostat TV. When the thermostat in the wash tank is satisfied, it energizes the indicator light LP.
  • Page 25 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 When the Start Cycle TC (6-20519) button is depressed. The small contactor relay (20067) is energized and closes contacts CR1 and CR2. This has two purposes. The first one is to energize both the timer motor and the indicator light LC (7).
  • Page 26 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 As the timer cam continues to turn, the second switch M2 is closed and energizes the wash pump motor MPL(40240). After 150 seconds approximately, switch M2 opens and switch M3 closes to energize the solenoid valve ELB (for rinsing), the drain pump DP and the detergent pump PD.
  • Page 27 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 The drain button Sw2 is depressed, power is sent directly to the drain pump DP. The button most be held in place. If the power switch TL is not switched off, the unit will try to fill again when the water level reach about 2 inches.
  • Page 28 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 CHEMICALS AND PUMP ADJUSTMENT Dishwashers require the use of a detergent and possibly a rinse additive. The detergent must be of commercial strength to work in the unit’s short cycle. The rinse additive will help the water to sheet on the glasses and plates, acting as a drying agent.
  • Page 29 Don't forget to put the panel back on when finished. RINSE PUMP ADJUSTMENT AND PRIMING · The rinse pump is standard equipment on all JET-TECH machines and automatically injects rinse additive into the rinse water for the final rinse. · The rinse pump is located in the base of the machine near the booster tank.
  • Page 30 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792 opens, causing the water pressure to push the internal piston, you should be able to see the liquid travel the length of the tube. 4) Once the liquid as reached the back of the pump, turn the adjusting screw on the rinse pump clockwise all the way in and counter-clockwise 3 full turns.
  • Page 31 1 888 275 4538 - 611 514 737 9701 - 611 Components FAX 514 737 2792 20588 20352 40147 20199...
  • Page 32 1 888 275 4538 - 611 514 737 9701 - 611 FAX 514 737 2792...

This manual is also suitable for:

F18-dp