Dexter Laundry T-300 VENDED, T-300, T-400, T-350, T-600 Operator's Manual

COMMERCIAL WASHER
MODEL T-300 VENDED
C-SERIES CONTROL

OPERATOR’S MANUAL

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.

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TABLE OF CONTENTS

Page No.
Washer Specifications 2
Mounting Dimensions 3
Installation Instructions 4
Operating Instructions 8
Programming the Washer Control 10
Displayed Washer Faults 24
Servicing and Troubleshooting 30
Accessories and Contact Information 34

WASHER SPECIFICATIONS

MODEL T-300 20 LB. WASHER

CAPACITY

CYLINDER SIZE

ELECTRICAL

DRIVE SYSTEM

WASH SPEED

INTERMEDIATE
EXTRACT

FINAL EXTRACT

MACHINE CONTROL

WATER INLET

DRAIN VALVE

20 LBS/2.7 CUBIC FT. (9.1 kg/76.5L)

21” DIA X 13 1/2” DEEP (53cm X 34cm)

208-240 VAC, 60 HZ, 1 OR 3 PHASE or 120 VAC, 60 HZ, 1 PH

SOFT START REVERSING INVERTER DRIVE, 1 HP MOTOR

55 RPM

449 RPM (60 G’S)

579 RPM (100 G’S)

PROGRAMMABLE COMPUTER

2 SOLENOID OPERATED VALVES
FLOW RATE: 9 GAL/MIN EACH, 30-120 PSI

2 1/4” DIAMETER (5.7 cm)

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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

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 to a substantial concrete
floor, or mounted upon a suitable base that is securely bolted 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 (150mm) or thicker.
Anchor bolts or expansion anchors must be of a quality grade and a minimum of ½ inch
(14 mm) diameter.

MOUNTING

A concrete pedestal or steel-mounting base that elevates the machine approximately 8
inches (200 mm) above the floor level is recommended to provide easy access to the
loading door. Allow a minimum of 24 inches (600mm) 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 1/2" x 8" (14 mm x 200 mm), grade 5 or better, headed
by a 4 inch (10 cm) square fish plate and should protrude 1 7/8” (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.)

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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. Do not exceed 180F (82C) degree water temperature.

DRAIN

The drain outlet tube at the rear of the machine is 2 ¼ inches (57 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 T-300 single-phase 115VAC 60Hz washing machines are provided with a
grounding (three-prong) power cord. A grounding receptacle must be used to provide a
good external ground to the machine.

The Dexter T-300 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.)

Individual circuit breakers for each unit are recommended. Do not use ground-fault circuit
breakers or ground-fault circuit interrupter outlets.

TO MAKE ELECTRICAL CONNECTIONS: Disconnect all power to the washer. Remove the
top panel of the washer and locate the power terminal block near the back of the control
compartment.

 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 TB­1 be connected to a good external ground.

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FUSING REQUIREMENTS:

SINGLE-PHASE 115VAC MODELS - 20 AMP TIME-DELAY (DUAL ELEMENT) FUSE
(or equivalent circuit breaker)

SINGLE- and THREE -PHASE 208-240VAC MODELS - 15 AMP TIME-DELAY (DUAL
ELEMENT) FUSE (or equivalent circuit breaker)

CONTROLS TRANSFORMER (208-240V models only)

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 219 volts. Use the terminal marked “240V” for power supplies between 220 and
240 volts.

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.

The cylinder should turn in a counterclockwise direction (viewed from the front of the
machine) during intermediate spin and final spin. If spin is clockwise, the T1 and T2
motor wires going to T1 and T2 on the variable frequency drive should be swapped.
Remove power to the machine before swapping wires.

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OPERATING INSTRUCTIONS - 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 20 pounds clothes, dry weight. Do not load
the washer with more than 20 lbs.

B. Select the appropriate cycle temperatures for the load being washed.

C. 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 washing
machine.

D. Insert coins, tokens or debit card to meet the displayed vend price. The
display will count down the amount needed to meet the vend price. Once the
vend price is met, the display will read “PRESS START” and the start button LED
will blink. If the door is not closed and latched, the display will read “CLOSE
DOOR” and the control will wait until the door is latched to continue. Pressing the
start button will begin the cycle and activate the ON light. The display will show
the remaining 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 a 3-second tone will sound and the display will read “CYCLE
DONE THANK YOU” until the door is opened. The door can now be opened. Leave the
clothes door open when the machine is not in use.

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EMERGENCY STOP / SAFETY DOOR LOCK

This machine is equipped with a Safety Door Lock that locks the door closed from when
the cycle is started until the cycle is complete. The door lock prevents opening the door
for up to 3 minutes if the power is interrupted during the cycle.

The Emergency Stop button pauses the washer and allows the door to be opened
during the cycle after the Safety Door Lock releases. When the Emergency Stop button
is pressed an alarm will sound and the display will begin counting down and read “STOP
3”, “STOP 2”, “STOP 1”. If the button is released before 3 seconds elapse, the alarm
will stop and the cycle will continue normally. If the Emergency Stop is held down for 3
seconds, the display will count down and the washer will begin stopping movement and
water flow and begin draining water from inside the washer. Though the machine may
stop wash movement quickly, it may take up to 3 minutes for the door to unlock.
During that time the alarm will continue to sound and the display will read “STOPPING”.
When the alarm stops, the door may be opened. The washer may be restarted by
closing and latching the door, and pressing the Start button. If the washer was stopped
more than once before the final extract, the cycle will be cancelled. If the washer was
stopped during final extract, the cycle will be ended. If the washer is stopped for more
than 1 hour, the cycle will be terminated.

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PROGRAMMING THE WASHER CONTROL

The washer control can be programmed to prompt the user for alternate vend prices,
change washer cycle times, temperatures and many other options. This can be
accomplished in two ways:

1. Manual programming utilizing the “Start”, “Hot”, “Warm” and “Cold” buttons

2. USB download of a customizable User File. For instructions on using the USB
download feature, please contact your local Dexter distributor or visit
DexterLive.com.

MANUAL PROGRAMMING:

The washer must be in idle mode for the manual programming menus to be accessed.
Idle mode is when the washer is not actively running a wash cycle and the vend price is
displayed on the screen.

To enter the manual programming mode, the top of the washer must be unlocked and
lifted slightly (it may be necessary to remove the screws for the soap box). The
programming button is then pressed for 1 second. The control should display
“PROGRAMMING”.

See the figure below for the location of the programming button in relation to the USB
port (The USB port is exposed when the washer top is lifted).

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When manual programming mode is entered, the “Start”, “Hot”, “Warm” and “Cold”
buttons perform alternate functions.

Button Name Alternate Function in Programming Mode

Start

Hot

Warm

Cold

Becomes the action to accept the displayed option or
the “Enter” key
Becomes the action to move UP through displayed
options (Press & hold for accelerated scrolling)
Becomes the action to move DOWN through displayed
options (Press & hold for accelerated scrolling)
Becomes the action to move back a step (1 press) or
EXIT from programming mode (press for 3 seconds)

These alternate functions allow the user to move through a menu of options to choose
various programmable settings. The figure below shows the top level menu. Choosing
an option from the top level menu will then display the next level of options (the sub
menu).

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