FTC operation instruction Eng - HOBART · FTC series dishwashers are automatic intelligent...

FTC DISHWASHER OPERATION INSTRUCTION

HOBART FOOD EUIPMENT CO., LTD. V1.0 0808

Read the entire operation manual before operate the machine

DO assure proper water hardness of 0.025 – 0.075 grams per liter.

DO pre-scrap dishes thoroughly.

DO use only detergents recommended by your chemical professional.

DO at the end of the day, thoroughly cleanse the machine, rinse, and dry

(leave doors open).

DO closely follow your chemical professional's prescribed deliming schedule.

DO use only products formulated to be safe on stainless steel.

DO NOT over soften water (recommended water hardness range is 0.025 –

0.075 grams per liter).

DO NOT use detergents formulated for residential dishwashers.

DO NOT allows food soil to accumulate on the tank bottom.

DO NOT exceeds chemical manufacturer's recommended concentrations for

detergent, sanitizer, rinse aid, or lime scale remover.

DO NOT use steel wool to clean ware or warewasher surface.

DO NOT allows foreign objects to enter the unit, especially metallic

contaminants.

DO NOT hose down the outside of the machine.

NOTE: Failure to follow use, care, and maintenance instructions may

void your Hobart warewasher warranty.

CONTENTS General ……………………………………………………. 1

Basic parameter…………………………………………………. 2

Wash ability……………………………………………………….. 3

Operation ………………………………………………………….. 4

Checking ……………………………………………………………. 4

Start ………………………………………………………………….. 5

Warm-up…………………………………………………………….. 6

Pre wash ….…………………………………………………………. 6

Wash …………………………………………………………………. 7

Emergency stop.………………………………………………….. 9

Overload protection .………………………………………………. 9

Change conveyor speed .…………………………………………. 10

Stop ……………………………………………………………….. 11

Drain …………………………………………………………………. 11

Clean ……………………………………………………………….. 11

Dos and Don’ts ……..……………………………………. 16

Curtain and drainback panel .…………………………… 17

Maintenance ……………………………………………… 18

Trouble shooting …………………………………………. 19

Inverter setting …………………………………………………….. 22

Thermostat setting …………………………………………………. 23

Control board switch setting .…………………………………….. 24


1

Operation and Care of FTC Series Dishwashers

Please save these instructions

GENERAL

FTC series dishwashers are automatic intelligent dishwashers and have traits of safety, convenience, reliability, rapidness, high efficiency, saving energy and environment control. Special module design to make sure that user can select freely (explain clearly before order). FTC dishwashers include entry module, prewash module, wash module, rinse module, dryer module and exit module (maximal collocation is one prewash module, three wash module, one rinse module and one dryer module). Heat insulation chamber and low flowrate surround rinse system can save energy efficiently and reduce cost. It is convenient for user to wash and clean interior of dishwashers according to insulation full wide door. 612mm efficient width and link-Flight are suitable for wash of different kinds of dishware and improve machine utilizing rate. Operator can select different speed from two conveyor belt speed according dirtiness of dishware.

Electric heat or steam heat can be selected for FTC dishwashers (explain clearly before order) with Electric Heater (18KW or 36KW) or Coil-Steam. User can select different heating element according to incoming water temperature and power source conditions. FTC series dishwashers have convenient functions of auto filling, heater

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control, digital thermometer, single-point filling, public drain pipe and jam protection.

BASIC PARAMETER

Operation height(mm) 850

Wash height (mm) 440

Door opening height(mm) 2103

Wash pump power (KW) 1.5

Electric heat power of wash tank(KW) 15

Electric heat power of booster(KW) 18 or 36

Wash tank capacity(L) 92

Water consumption(L/H) 360


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WASH ABILITY Wash ability of FTC dishwashers depends on wash tank number (conveyor belt speed), size of dishware (number of putting on conveyor per unit length). Conveyor belt is 18 lines per meter and efficient width is 612mm.

Recommended conveyor belt speed

Speed I(m/min) Speed II(m/min) One wash tank 1.6 1.0 Two wash tank 2.0 1.4

Three wash tank 2.4 1.8 Four wash tank 3.0 2.2

EXAMPLE: FTC-2PCRD2 dishwashers wash ability as follows： Conveyor belt link-flight 18 lines per meter, two trays per line．(tray 390mm ×280mm)

Machine configuration Wash tank number

Conveyor belt speed m/min

Maximal wash ability

tray/hour prewash and three

wash 4 3.0/min 6480

Conveyor belt link-flight 18 lines per meter, four bowls per 3 lines．(bowl diameter 140mm)




bowls/hour prewash and three

wash 4 3.0/min 4320

Conveyor belt link-flight 18 lines per meter, five bowls per two lines (bowl diameter 115mm)




bowls/hour prewash and three

wash 4 3.0/min 8100

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OPERATION

CHECKING Raise the machine doors and make sure all components are in their

proper operating positions.

Strainer Pans must be in

place on top of each tank

Pump Intake Screens must

be put on holders at each

pump intake

Strainer Baskets must be in

place in Strainer Pans

Wash Arms must be

properly installed and

latched in place

End Caps must be correctly

installed at ends of all Wash

Arms

The Final Rinse Arm must

be properly installed

Drainback pans must be in

their proper places

Curtains must be in their

proper places

Check detergent and rinse

sanitizer


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START

1. Open all water (steam) valves before machine starting and push power.

2. Push power switch, water valve is opened and fill automatically. When

wash tank is full of water, water valve may be closed. During operation, wash tank should keep proper water level.

Notes: The water hardness supplied should be in the range of

0.025-0.075g/L. If water hardness is more than 0.075 g/L, please

install soften system (supplied by others) to make sure normal

operation of machines.

Power Start/Stop Speed

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WARM-UP Tank water is full of water and machine start to heat. When wash and rinse temperature reached set temperature, OK light begin to shine and machine enter standby mode.

Recommended temperature setting（℃） SPH SPL A

Rinse 86 86 0 Wash I 64 64 0 Wash II 67 67 0

Main wash 70 70 0 dryer 65 65 0

PRE-WASH

1. Scrape dish and sorking

2. Putting correctly

Power Start/Stop Speed


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Warning：If dishes are placed incorrectly, dishes may be not washed

cleanly.

WASH Close all the doors and press start buttons or entry/exit green buttons.

Placed dishes on the moving conveyor belt of entry module. When dishes

enter wash module, wash pump and dryer fan may automatically start. Wash

Rinse drying (if equipped). Take out dishes after through out

machine.

Press stop button or entry/exit red buttons and machine will stop to work.

Dryer fan will delay 2 minutes. If dishes do not placed on conveyor belt after

taking out all dishes, machine will stop automatically.

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If an item is left on the conveyor, it will strike the conveyor trip assembly and stop the conveyor. Machine automatically restarts after trip bar reposition. Take out all other ware as possible on the unload conveyor, then remove the dish in trip bar last.

Notes: Place dishes after pressing start buttons.

Notes: Machine can be started after all door closed and tanks are full of

water.

Note: Stop the conveyor after removing all dishes from the conveyor.

Buttons on exit


9

EMERGENCY STOP

If emergency of machine was appeared, please press entry/exit red button

immediately. After completing dealing with emergency, pull entry/exit red

button and machine restart.

Notes: Pushing and pulling emergency button optionally may bring

damage to machines.

OVERLOAD PROTECTION

Maximal load of conveyor belt is 30Kg/m. If overload or other reasons

cause machine stopped, shut off power source. Machine cannot begin to work

until make sure complete dealing with emergency.

CHANGE CONVEYOR SPEED

Select speed of conveyor belt according to dirtiness of dishes.

I-high speed

II-low speed

Red emergency button

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Notes: Push speed switch, speed of conveyor belt can be changed

after restarting machines.

CLEAN STRAINER PAN AND BASKET IN USEING Strainer pan and basket must be

cleaned termly in using, to prevent overmuch waste to influence dishwasher performance. Stop machine, open inspection doors, strainer basket placed in the front of tank.

Note: Too much waste on strainer pan and basket may reduce wash performance even damage machine.

High Low

Speed switch


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STOP Push power switch, close water valve and shut off power

DRAIN Open inspection door and lift drain handle in all modules..

CLEAN 1. Dishwashers must be thoroughly cleaned after operation.

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2. Open the door and lift drain handle to drain water. Drain handle

places above the strainer panel in the front of wash tank.

3. Remove and clean curtains.

4. Use hose with nozzles to wash large particles into machine, clean

dishwasher interior thoroughly.


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5. Pull upper arm latch, rotate upper arm front to take upper arm. Lift

lower arm front and rotate right to take lower arm. Remove plug of

lower arm and clean wash arms.

6. Take out strainer basket and strainer panel. Pour waste into dustbin.

Do not strike strainer basket/panel on hard things. Clean strainer

basket/panel in the water pool.

7. Drain the wash tank and pull out intake screen strainer to clean.

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8. Take out rinse arm, screw rinse arm plug, clean nozzle and rinse arm.

Note: Do not use steel wool to clean surface of dishwashers and

only use products that announce no harm to stainless steel.

9. Re-install wash arm plug and make sure not too tight. Install wash

arms and rinse arms proper positions.

10. Clean tank bottom and clean out left food leavings.


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11. Replace pump intake screen, strainer basket and strainer panel.

12. Open the door to make sure interior air circulate freely.

13. Re-install all the curtains.

14. As any other stainless steel products, please use wet dishcloth or

neutral suds clean machine exterior.

Warning: Do not hose down other sections except wash chamber

and tank interior.

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DOs AND DON'Ts FOR YOUR NEW HOBART WAREWASHER

DO assure proper water hardness of 0.025 – 0.075 grams per liter.

DO pre-scrap dishes thoroughly.

DO use only detergents recommended by your chemical professional.

DO at the end of the day, thoroughly cleanse the machine, rinse, and dry

(leave doors open).

DO closely follow your chemical professional's prescribed deliming schedule.

DO use only products formulated to be safe on stainless steel.

DO NOT over soften water (recommended water hardness range is 0.025 –

0.075 grams per liter).

DO NOT use detergents formulated for residential dishwashers.

DO NOT allows food soil to accumulate on the tank bottom.

DO NOT exceeds chemical manufacturer's recommended concentrations for

detergent, sanitizer, rinse aid, or lime scale remover.

DO NOT use steel wool to clean ware or warewasher surface.

DO NOT allows foreign objects to enter the unit, especially metallic

contaminants.

DO NOT hose down the outside of the machine.

NOTE: Failure to follow use, care, and maintenance instructions may

void your Hobart warewasher warranty.


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CURTAIN AND DRAINBACK PANEL Curtains must be in their proper places.

Entry and exit vent hood outside sides with long curtains Each wash and pre wash load side with a short curtain Rinse both sides and middle with short curtains Dryer unload side with a short curtain

Drainback panels must be in their proper places. Entry with Drainback panel II. Each wash and pre wash with drainback panel I. Exit with Drainback panel III. Dryer with Drainback panel II.

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MAINTENANCE WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH INDICATING THAT YOU ARE WORKING ON THE CIRCUIT BEFORE PERFORMING ANY MAINTENANCE PROCEDURE. Lubrication A list of acceptable lubricants, as well as the lubricants themselves, is available from your local Hobart Service Office. Line Strainers Line strainers used in water or steam lines should be cleaned one week after machine installation and periodically thereafter. Motors All motors have sealed bearings and require no lubrication maintenance. Conveyor Gearmotor The gear case is filled with lubricant (Albania RA) and almost do not change lubricant. Work life of machine should be longer if change lubricate every 20000hours or 4-5 years. Conveyor Drive Chain Inspect the drive chain regularly and lubricate as required.


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TROUBLESHOOTING Note: Manual Reset Button on overload relays in the control box Note: If symptom(s) persist after possible causes have been checked, contact Hobart Service.

SYMPTOM POSSIBLE CAUSE Machine Won't Operate After Start Button Is Pressed

1. Blown fuse or tripped circuit breaker at power supply

2. Inspection door(s) not closed ('Doors Closed' light is off)

3. Tanks are filling 4. Conveyor may be jammed 5. Manual overload protector may have tripped on

pump motors Dishes Not Clean 1. Insufficient wash water due to drain obstruction

preventing proper drain closing 2. Missing end plug from wash arm 3. Wash arm nozzle obstruction 4. Water leaking past manifold O-ring 5. Loss of water pressure due to pump obstructions

DISCONNECT ELECTRICAL POWER SUPPLY (IES) AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE YOU ARE WORKING ON THE CIRCUIT. Drain tank(s) and check for any obstructions at the pump intake

6. Incorrect water temperature. Check circuit breaker to electric heat supply, or main steam valve. Make certain valve is completely open

7. Incorrect detergent dispensing. Contact your detergent representative

Spotting of Silverware, Glasses, and Dishes

1. Improperly loaded dishes 2. Incorrect final rinse water temperature (minimum

82 C) 3. Loss of water pressure due to pump obstruction

DISCONNECT ELECTRICAL POWER SUPPLY (IES) AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE YOU ARE WORKING ON THE CIRCUIT. Drain tank(s) and check for any obstructions at the pump intake

4. Clogged wash arm nozzles 5. Improper water hardness (0.069 – 0.103

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grams/liter is the recommended range) 6. Incorrect detergent for water type 7. Clogged rinse nozzle(s) 8. Misaligned rinse arms. Rinse arms should be

positioned so that they align in hub on chamber wall

Inadequate Rinse 1. Dirty line strainer causing reduced water flow. Turn off water supply

2. Low supply line pressure 3. Clogged rinse nozzle(s)

Continuous Rinse Operation 1. Rinse valve failed or jammed open. Contact Hobart Service

2. Photoelectric sensors are blocked. Clean sensor openings

3. Photoelectric sensors failed. Contact Hobart Service

No Wash Tank Heat 1. The machine is equipped with low water safety devices which shut off heat if water level drops. Check for proper water level

2. Circuit breaker to heat system tripped 3. Check heat float for debris and free movement 4. Steam supply valve not open completely 5. Overtemp protector tripped. Contact Hobart

Service No Fill or Slow Fill 1. Dirty line strainer causing reduced water flow.

Turn off water supply, remove strainer cap, withdraw and clean screens

2. Make sure doors are closed 3. Check both upper and lower fill floats for debris

and free movement 4. Problem with solenoid valve. Contact Hobart

Service 5. Problem with pressure regulator. Contact Hobart

Service Wrong rinse, dryer and auto-stop operation

Please contact Hobart Service


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SERVICE Contact your local Hobart-authorized service office for any repairs or adjustments needed on this equipment. Long-term Maintenance contracts are available on this and other Hobart products.

Warning: The conveyor speed can be adjusted by your local Hobart service technician.

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FTC DISHWASHER INVERTER SETTING Warning: The inverter setting can be adjusted by your local Hobart service technician.

1. Turn on the power, don’t start the conveyor 2. Push “MODE” key on the inverter, the screen will be P0 3. Turn the knob to make P1 on the screen, push “SET” key and adjust the

value to 50. 4. Turn the knob to make P2 on the screen, push “SET” key and adjust value

to 17. 5. Turn the knob to make P4 on the screen, push “SET” key. The speed II

frequency will appear on the screen, turn the knob to adjust the value 6. Push “SET” key, the screen will be P5. Turn the knob to P6, push “SET”

key. The speed I frequency will appear on the screen, turn the knob to adjust the value

7. Turn the knob to make P7 on the screen, push “SET” key and adjust value to 0.2.

8. Turn the knob to make P8 on the screen, push “SET” key and adjust value to 0.2.

9. Push “MODE” key, finish the adjustment

Conveyor speed and inverter frequency relations Conveyor speed

(m/min) 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0

Inverter frequency（Hz）

17 20 23 26 30 33 36 39 43 46 50

Recommend conveyor speeds Speed I

(m/min) Speed II (m/min)

One tank 1.6 1.0 Two tank 2.0 1.4 Three tank 2.4 1.8 Four tank 3.0 2.2


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FTC DISHWASHER THERMOSTAT SETTING Warning: The thermostats setting can be adjusted by your local Hobart service technician.

1. Push “SET” key, the LED shows “SPH” 2. Push “SET” key, the LED shows turn off temperature. Push “UP” or

“DOWN” to adjust 3. Push “SET” key, the LED shows “SPL” 4. Push “SET” key, the LED shows turn on temperature. Push “UP” or

“DOWN” to adjust 5. Push “SET” key, the LED shows “A” 6. Push “SET” key, the LED shows offset value. Push “UP” or “DOWN” to

adjust 7. Push “SET” key, finish the adjustment

Recommend thermostats setting (℃) SPH SPL A

Final rinse 86 86 0 Wash I 70 70 0 Wash II 67 67 0 Wash III 64 64 0 dryer 65 65 0

Wash tank：

Wash module near rinse module was defined as Wash I, take turns Wash II, Wash III and wash Ⅳ.

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FTC DISHWASHER CONTROL BOARD SWITCH SETTING

Switch 1 Switch 2 Switch 3 Switch 4 Setting Open Open Open Open FTC no dryer, single wash

Close FTC no dryer, double wash

Close Open FTC no dryer, triple wash

Close FTC single dryer, single wash

Close Open Open FTC single dryer, double wash

Close FTC single dryer, triple wash

Close Open FTC single dryer, four wash

Close FTC double dryer, double wash

Close Open Open Open FTC double dryer, triple wash

Close FTC double dryer, four wash

Close Open

Close

Close Open Open

Close

Close Open

Close

FTC dishwasher jump switch setting

J501 J503 J506 J804 J806

Connection Connection Connection Disconnection Disconnection

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FTC operation instruction Eng - HOBART · FTC series dishwashers are automatic intelligent...

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