Dexter Laundry T450 Express Manuel utilisateur

P/N 8514-173-001PR

MODEL T450 EXPRESS

30LB CAPACITY

COMPUTER CONTROL

OPL WASHER

DEXTER

LAUNDRY,

INC. OWNER'S BOOKLET

INSTALLATION & OPERATION

INSTRUCTIONS

Please read this information and retain for reference.

WARNING - THIS WASHER IS EQUIPPED WITH DEVICES AND FEATURES RELATING TO ITS SAFE

OPERATION. TO AVOID INJURY OR ELECTRICAL SHOCK, DO NOT PERFORM ANY SERVICING

UNLESS QUALIFIED TO DO SO.

IT IS THE RESPONSIBILITY OF THE OWNER TO CHECK THIS EQUIPMENT ON A FREQUENT

BASIS TO ASSURE ITS SAFE OPERATION.

A machine should not be allowed to operate if any of the following occur:

- Excessively high water level.

- If machine is not connected to a properly grounded circuit.

- If the door does not remain securely locked during the entire cycle.

- Vibration or shaking from an inadequate mounting or foundation.

WARNING - FOR SAFETY

1. Always shut off power and water supply before servicing.

2. Do not overload the washer.

3. Do not open door when cylinder is in motion or it contains water.

4. Do not bypass any safety devices of this washer.

5. Do not use volatile or flammable substances in or near this washer.

6. Keep all panels in place. They protect against shock and injury and add rigidity to the washer.

PREVENTIVE MAINTENANCE REQUIREMENTS

DAILY

- Check that the loading door remains securely locked and cannot be opened during the entire cycle.

- Check the water connections for leaks.

- Clean the top and sides of the cabinet to remove residue.

- Clean the soap dispenser and lid and check that all dispenser mounting screws are in-place and tight.

- Check the drain valve for leaking and that it opens properly.

- Check the loading door for leaks. Clean the door seal of all foreign matter.

- Leave the loading door open to aerate the washer when not in use.

QUARTERLY

- Make sure the washer is inoperative by switching off the main power supply.

- Check the V-belts for wear and proper tension.

- Clean lint and other foreign matter from around motor.

- Check all water connections for leaks.

- Wipe and clean the inside of the washer and check that all electrical components are free of moisture and dust.

- Remove and clean water inlet hose filters. Replace if necessary.

- Check anchor bolts - retighten if necessary

IMPORTANT: Replace any and all panels that were removed to perform daily and/or quarterly maintenance..

(See the dispenser diagramat right.)

into dispenser on topof machine.

If required, put detergent andfabric softener,

1 Load clothes,latch dor securely.

WASH

PRE

3 Select desired wash CYCLE with and buttons.

4 Press START button.

5 If bleach is required,add when

ADD BLEACH lightcomes on.

Doorlocks when machine starts, and remains lockeduntil

cycle is completed. If power is interrupted,there willbe a

2 to 3 minute delay before the doorcan be opened.

detergent

Add

 

fabric softener

(Optional)Add

Add

Bleach

FLUSH



RINSE

FINAL

WASH RINSE SPIN

MODEL T450 EXPRESS

DEXTER

LAUNDRY,

INC.

INSTALLATION INSTRUCTIONS

All washers must be installed in accordance with all local, state and national building,

electrical, plumbing and other codes in effect in the area.

WARNING - THESE INSTALLATION AND SERVICING INSTRUCTIONS

ARE FOR USE BY QUALIFIED PERSONNEL ONLY. TO AVOID INJURY

AND ELECTRICAL SHOCK DO NOT PERFORM ANY SERVICING

OTHER THAN THAT CONTAINED IN THE OPERATING

INSTRUCTIONS, UNLESS QUALIFIED.

FOUNDATION REQUIREMENTS

WARNING: This machine is designed for use on or over bare concrete floor - not to be used

above combustible flooring. The washer must be securely bolted and grouted to a substantial

concrete floor, or mounted and grouted upon a suitable base, which is in turn, securely bolted

and grouted to a substantial concrete floor. CARE MUST BE STRESSED WITH ALL

FOUNDATION WORK TO INSURE A STABLE UNIT INSTALLATION, ELIMINATING

POSSIBILITIES OF EXCESSIVE VIBRATION. All installations must be made on sound

concrete floors, 6 inches (152 mm) or thicker. Anchor bolts or expansion anchors must be of a

quality grade and a minimum of 5/8-inch (16 mm) diameter.

MOUNTING

A concrete pedestal or steel-mounting base that elevates the machine approximately 6 inches

(152 mm) above the floor level is recommended to provide easy access to the loading door.

Allow a minimum of 24 inches (610mm) of clearance behind the rear of the machine, to provide

access for motor removal. Refer to Fig. 1-1 and 1-2 for machine bolt-down dimensions.

If an elevated concrete pedestal is desired, it should be embedded into the existing floor. Anchor

bolts should be 5/8" x 8" (16 mm x 200 mm), grade 8 or better, headed by a 4 inch (10 cm)

square fish plate and should protrude 1 7/8 inches (48 mm) above the finished surface of the

pedestal. EXPANSION ANCHORS ARE NOT RECOMMENDED FOR USE IN CONCRETE

PEDESTALS, BECAUSE THE ANCHORS ARE TOO CLOSE TO AN EDGE, CAUSING IT

TO BREAK OUT. (See Fig. 1-1 and 1-3.)

PLUMBING

Water supply hoses are furnished with each machine. The threaded connections on the hoses are ¾-

11 ½ NHT.

Separate hot and cold water lines must be provided, maintaining 30 psi to 120 psi (207 kPa to 827

kPa) water flow pressure. A 140F (60C) degree hot water supply is recommended for best washing

results.

DRAIN

The drain outlet tube at the rear of the machine is 3 inches (76 mm) in diameter. Any drain hose

used must be lower than the drain valve to assure proper draining.

ELECTRICAL

WARNING

SHUT OFF POWER AND WATER BEFORE OPENING ANY SERVICE PANELS.

The Dexter 450 single-/three-phase 208-240VAC 60 Hz washing machines are intended to be

permanently installed appliances. No power cord is provided. The machine should be connected to

an individual branch circuit not shared by lighting or other equipment. The connection should be

sheathed in liquid tight flexible conduit, or equivalent, with conductors of the proper size and

insulation. A qualified technician should make such connections in accordance with the wiring

diagram. (Suggest a minimum wire size of 12 ga.)

TO MAKE ELECTRICAL CONNECTIONS: Disconnect all power to the washer. Remove screw

and lift out the cover located in the upper left corner of the machine (as viewed from the back).

If power is 208-240-3PH-60Hz, connect L1, L2, L3 and ground. If there is a high leg it must

be connected to L3.

If power is 208-240-1PH-60Hz, connect L1, L2 and Ground.

NOTE: It is important that the grounding screw next to the power terminal block TB-1 be

connected to a good external ground.

FUSING REQUIREMENTS:

SINGLE- or THREE -PHASE POWER - 15 AMP TIME-DELAY (DUAL ELEMENT)

FUSE (or equivalent circuit breaker)

CONTROLS TRANSFORMER:

The controls transformer is located inside the control trough and steps a range of 208 to 240 volts

down to 115 volts. There are two terminals on the controls transformer for the primary (incoming)

power. Use the terminal marked “208V” for power supplies between 208 and 220 volts. Use the

terminal marked “230V” for power supplies between 221 and 240 volts.

INJECTION SOURCE DETAILS

The washer control may be programmed to send 120V output signals for a chemical injection

system. The signals are not intended as a power source and must be limited to less than 100

milliamps of current. There is a separate terminal block for connection of the external injection

signals. For the injection sources, program codes 0 through 6 are as shown in the table below.

Dexter

Recommended

Connections

Controller

Programmed

Signals

Injection

Terminal Block

Circuits

Detergent 1 A

Bleach 2 B

Starch 3 C

Sour/Softener 4 D

5 A and B

6 C and D

0 None

CHECKOUT

After all mounting, plumbing and electrical work is completed, the washer should be run through

a cycle and checked for water leaks and proper functioning.

SPECIFICATIONS

MODEL T450 EXPRESS 30LB WASHER

CAPACITY

CYLINDER SIZE

ELECTRICAL

DRIVE SYSTEM

WASH SPEED

INTERMEDIATE

EXTRACT

FINAL EXTRACT

MACHINE CONTROL

WATER INLET

DRAIN VALVE

30LBS/3.8 CUBIC FT. (13.6 kg/108 L)

25” DIA X 13 3/8” DEEP (63.5cm X 34cm)

208-240 VAC, 60 HZ, 1 OR 3 PHASE

SOFT START REVERSING INVERTER DRIVE, 2 HP MOTOR

50 RPM

411 RPM (60 G’S)

750RPM (200 G’S)

PROGRAMMABLE COMPUTER.

2 SOLENOID OPERATED VALVES

FLOW RATE: 9 GAL/MIN EACH, 30-120 PSI

3” DIAMETER

STARTING THE WASHER

A. Load the clothes into the cylinder and latch the door securely. Be sure clothing does

not get caught between the door gasket and tub front when closing the door. Maximum

load is 30 pounds clothes, dry weight. Do not load the washer with more than 30 lbs.

B. Select the appropriate cycle number (1 through 6 for the load being washed. See the

cycle descriptions in the programming section. Use the UP and DOWN keys to change

the cycle number.

C. If not using a chemical injection system, add low-sudsing powdered detergent into the

“detergent” compartment of the automatic dispenser on the top of the washer. If desired

add fabric softener to the “fabric softener” compartment. Use the amount of fabric

softener as recommended by the manufacturer.

If liquid wash products are used in the “detergent” compartment, they must be added at

the beginning of the wash cycle.

If the machine is set for pre-wash, washing products can be added to the round opening

of the dispenser or put in with the clothes when loading the cylinder before starting the

machine.

D. Press START. The display will go blank for a moment and then display the cycle

time in minutes. The clothes door will lock and remain locked until the end of the cycle.

END OF CYCLE

When the cycle is complete the time will display “0” until the door is opened and a 5-second

tone will sound. The door can now be opened. Leave the clothes door open when the machine is

not in use.

SAFETY DOOR LOCK

This machine is equipped with a Safety Door Lock that prevents opening the door for 2 to 3

minutes if the power is interrupted. This safety feature cannot be bypassed.

PROGRAMMING INSTRUCTIONS:

Programming can be accomplished manually using the machine controls or by connecting to the

machine control using a PDA (personal digital assistant). For instructions on using a PDA with

this washer control, please contact your local Dexter distributor. Please read below for manual

programming instructions.

The keypad layout for the washer control is shown above.

WASH CYCLE PROGRAMMING:

1. Turn on the power to the washer.

2. Turn the Run/Program key to the Program position. Display will show“C O” and the “ADD

BLEACH” light will blink and will continue to blink during the programming mode.

3. Press the “DOWN” or “UP” buttons to select which cycle to alter. When the desired cycle

number is displayed, press “START”.

4. The display should now show a “b”. The “b” and the cycle indicator lights indicate which

bath is being selected to alter. Press the “UP” and “DOWN” buttons to select a bath to

change and then press “START”. The indicator lights are shown below.

FINAL

RINSE

PRE

WASH

FLUSH WASH RINSE SPIN

When “RINSE” is selected, “b r1” through “b r4” may be selected. There may be multiple

rinses that are indicated by r1, r2, r3 and r4.

5. Each bath can be programmed with the following options. Use the “DOWN” and “UP” keys

to select the desired setting and the “START” key to move to the next option.

DISPLAY FUNCTION OPTIONS

Ct ** Tumble Time Two-digit amount of time in minutes.

t ** Water Temperature HH for hot, CH for warm, CC for cold

and EE for no water.

L ** Water Level Lo for low, Hl for high.

dF * Type of Fill d for delayed fill, t for timed fill.1

S ** Spin Time Two-digit amount of time in minutes.

IS * Injection Source Single digit code indicating injector signal(s).2

1 A delayed fill will pause the time count until theselected level is reached. A timed fill will

allow the time count to continue until the selected level is reached.

2Codes for injections sources are defined at the end of the programming section. When the

No Water bath is selected, the electronic controller prohibits injection signals. The

programmed injection source value is ignored.

To exit the programming of a bath, press the “STOP” button once and use the “UP” and

“DOWN” keys select another bath. Press the “STOP” button again to select a different cycle to

change. To end programming, turn the key to “RUN” position

WASH CYCLE PARAMETER RANGES

The range of each cycle parameter is shown below:

Cycle Time 0 to 15 minutes for Prewash, Wash, Rinse1, 2, 3 and 4

1 to 15 minutes for Final Rinse

For the bathes that can, if the time is set to zero, then the

bath will be eliminated from the cycle.

Water Temperature HH – hot, CH – warm, CC – cold, EE – no water

Water Level HI – high, LO – low

Delay Fill The selections are “d” for delay the bath time until water

level is reached or “t” to count down bath time during the

fill.

Spin Time 0 to 10 minutes for Prewash, Wash, Rinse, 2, 3 and 4

1 to 10 minutes for Final Spin

Injection Source 0 to 6

Note: The Wash Cycle programming mode will automatically exit and return to

the Idle mode if no buttons are pushed for one minute.

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