Dexter Laundry 400 EXPRESS User manual

P/N 8514-070-001
MODEL 400 EXPRESS
25LB CAPACITY
COMPUTER CONTROL
COIN-OP WASHER
THE
DEXTER
COMPANY 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.

MODEL 400 WASHER
THE
DEXTER
COMPANY
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 818
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. A flexible hose
material (Pt. #9242-417-003) is available to extend this draining system. 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 400 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 - 20 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.

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 25LB EXPRESS WASHER
CAPACITY
CYLINDER SIZE
ELECTRICAL
DRIVE SYSTEM
WASH SPEED
INTERMEDIATE
EXTRACT
FINAL EXTRACT
MACHINE CONTROL
WATER INLET
DRAIN VALVE
25LBS/3.8 CUBIC FT. (11.3 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
412 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. Do not
overload the washer.
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 cylinder before starting the
machine.
D. Insert the number of coins or tokens to meet the displayed vend price. Once the vend
price is met, and the Insert Coins light turns off, and the ON light turns on. 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 washer has two levels of programming. The Coin/Price Programming allows the owner to
set the price for the washer features and the values of the coins. The Washer Cycle Programming
allows the owner complete access to the wash cycle parameters – add/remove a bath, bath times,
spin times, water temperatures, etc. To enter the programming modes, the top of the washer must
be unlocked and slid toward the back of the washer a few inches.
COIN PRICE PROGRAMMING
While the washer is in the Idle mode, push the Programming pushbutton on the controller. The
Idle mode is when the washer is not running a cycle and the price of the bath is displayed. The
Programming pushbutton is a very small buttoned located on the upper center of the controller
directly behind the display. There are six stages in the Coin/Price Programming mode.
To step through to the desired stage, repeatedly push the right-hand Warm temperature
button until the desired stage is blinking on the display. To exit the Coin/Price
p
rogramming mode, push and hold the Cold temperature button for 5 seconds.
Stage 1: Right Coin – The display will blink first a “r” indicating right coin and then a coin value
($1.00 – default). The display will blink back and forth between the “r” and the value. To
change the value, use the Hot temperature button to decrease and the left-hand Warm
temperature button to increase. The value will change in 5¢steps. The range of values is from
$00.00 to $99.95. When the desired right coin value is displayed, push the right-hand Warm
temperature button once to store the new value and a second time to move to the next Coin/Price
programming step.
To exit the Coin/Price programming mode, push the Cold temperature button for 5 seconds.
Stage 2: Left Coin – The display will blink first a “L” indicating left coin and then a coin value
($0.25– default). The display will blink back and forth between the “L” and the value. To
change the value, use the Hot temperature button to decrease and the left-hand Warm
temperature button to increase. The value will change in 5¢steps. The range of values is from
$00.00 to $99.95. When the desired left coin value is displayed, push the right-hand Warm
temperature button once to store the new value and a second time to move to the next Coin/Price
programming step. To exit the Coin/Price programming mode, push the Cold temperature button
for 5 seconds.
Stage 3: Wash Price – The display will blink first a “P” indicating wash price and then present
wash price. The display will blink back and forth between the “P” and the price. To change the
value, use the Hot temperature button to decrease and the left-hand Warm temperature button to
increase. The value will change in 5¢steps. The range of values is from $00.05 to $99.95.
When the desired price is displayed, push the right-hand Warm temperature button once to store
the new value and a second time to move to the next Coin/Price programming step. To exit the

Coin/Price programming mode, push the Cold temperature button for 5 seconds.
WATER TEMPERATURE PRICING
The washer can be set for different levels of pricing for Cold, Warm and Hot water. The Cold
water setting is considered as the base price, which is the normal washer cycle price.
Stage 4: Warm Water Price – The next step in the pricing program is to set the additional price
for Warm water usage. The additional price is the amount added to the price of a cold wash. The
display will blink first “CH P” indicating cold/hot water mix price and then “00.00”. To change
the value, use the Hot temperature button to decrease and the left-hand Warm temperature button
to increase. The value will change in 5¢steps. The range of values is from $00.00 to $99.95.
N
ote: To not use this feature, set the price to “00.00”.
When the desired price is displayed, push the right-hand Warm temperature button once to store
the new value and a second time to move to the next Coin/Price programming step. To exit the
Coin/Price programming mode, push the Cold temperature button for 5 seconds.
Stage 5: Hot Water Price – The next step in the pricing program is to set the additional price for
Hot water usage. The additional price is the amount added to the price of a cold wash. The
display will blink first “H P” indicating hot water price and then “00.00”. To change the value,
use the Hot temperature button to decrease and the left-hand Warm temperature button to
increase. The value will change in 5¢steps. The range of values is from $00.00 to $99.95.
N
ote: To not use this feature, set the price to “00.00”.
When the desired price is displayed, push the right-hand Warm temperature button once to store
the new value and a second time to move to the next Coin/Price programming step. To exit the
Coin/Price programming mode, push the Cold temperature button for 5 seconds. The Coin/Price
programming mode will automatically exit and return to the Idle mode if no buttons are pushed
for one minute.
Stage 6: Plus Cycle Price -- The next step in the programming sequence is the Plus Cycle
feature. The Plus Cycle adds three (3) minutes of wash time to the wash bath only. The
controller can be programmed to charge a fee for this or the feature can be turned off. The
default setting is off. To turn the Plus Cycle feature off, set the Plus Cycle price to zero.
The display will blink first a “PC P” indicating Plus Cycle price and then price (back and forth).
To change the value, use the Hot temperature button to decrease and the left-hand Warm
temperature button to increase. The value will change in 5¢steps. The range of values is from
$00.05 to $99.95. When the desired price is displayed, push the right-hand Warm temperature
button once to store the new value and a second time to move to the next Coin/Price
programming step. To exit the Coin/Price programming mode, push the Cold temperature button
for 5 seconds.
WASH CYCLE PROGRAMMING

To change a feature of the wash cycle, push and hold the Hot temperature button and then push
the programming pushbutton on the controller. The Washer mush be in the Idle mode to enter
the Wash Cycle Programming mode. When entering the cycle programming mode the Bleach
LED will start to blink and continue to blink as long as you are in the Cycle Programming mode.
The display will show “C 0”. This is the default cycle number.
Note: The washer can be returned to the factory default settings by holding
the right Warm button and then pressing the left Warm button. The
display must show “C 0” to do this. When the cycle default values are
loaded, the washer will automatically exit the programming mode.
Note: The Wash Cycle programming mode will automatically exit and return to
the Idle mode if no buttons are pushed for one minute.
To change the washer cycle, push the Hot temperature button once. The display will change to
“C 1”, indicating cycle one is selected. The temperature buttons are used to make changes to
the program. In the program mode, the buttons will do the following:
When the display shows “C 1”, push Enter. The display will show “b“ and the PreWash mode
light will blink. Use the Up/Down buttons to move to the bath that will be changed. As
Up/Down buttons are pushed, the next bath mode light turns on.
When the Up button is pushed, the lit bath mode changes from Prewash to Wash. With each
additional push of the Up button, the lit bath mode changes from left to right: Prewash, Wash,
Rinse and Final Rinse. As there are two possible Rinse bathes, for Rinse1 the Rinse LED and
the display changes to “b” in the left digit and “r1" in the two right hand digits. For Rinse2, the
display changes to “b” in the left digit and “r2" in the two right hand digits. Note that the Spin
light is not used. When the Down button is pushed, the lit bath mode changes from Prewash to
Final Rinse, etc. There is a wrap around feature in both directions. When the desired bath mode
light is on, push Enter.

The selected bath LED begins to blink. The display shows the letters “ct” in the left two digits
and the bath cycle time in the right two digits. Again the up/down buttons change this value.
The range is shown below. If zero time is entered, then the bath will be skipped and the program
will return to the bath selection. When the desired cycle time is selected, push enter.
The display shows the letter “t” in the left digit and the letters “CC” appear in the right two
digits. This is the bath water temperature. The selection choices are shown below but for the
coin washer the value is defaulted to CC. As it is not selectable with a coin washer, the owner
pushes enter to continue.
The display shows the letter “L” in the left digit and the letters “LO” appear in the right two
digits. This is the bath water level. The selection choices are shown below but for the coin
washer the value is defaulted to LO. As it is not selectable with a coin washer, the owner pushes
enter to continue.
The display shows the letters “dF” in the left two digits and the letter “t” appears in the right
digit. This is the bath delay fill. The selections are “t” for counting down bath time during the
fill or “d” for delay the bath time until water level is reached. When the desired selection is
made, push enter.
The display shows the letter “S” in the left digit and the bath spin time in the right two digits.
Again the up/down buttons change this value. The range is shown below. When the desired spin
time is selected, push enter.
The display shows the letters “IS” in the left two digits and the injection selection appear in the
right digit. For the coin washer the default value is “0" and cannot be changed. Push enter.
At this point the bath LED stops blinking. The display will show “b” and the next bath LED
lights. Again use the up/down buttons to change the bath selection. The program will only exit
when one of the bath lights is NOT blinking. To exit the programming mode, push exit. The
cycle will be stored when exiting the programming mode.
COIN WASHER CYCLE PARAMETER RANGES
The range of each cycle parameter is shown below:
Cycle Time “ct” 0 to 15 minutes for Prewash, Rinse1 and Rinse2
3 to 15 minutes for Wash and 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 “t” HH – hot, CH – warm, CC – cold, EE – no water
The owner can set the bath default. For the wash bath, the
customer overrides the default for that cycle when the
temperature is selected.
Water Level “L” LO – low
The owner can change the displayed value, but for a coin
washer only LO will be put into the cycle.

Delay Fill “dF” The selections are “d” for delay the bath time until water
level is reached or “t” for decrement bath time during the
fill.
Spin Time “S” 0 to 10 minutes for Prewash, Wash, Rinse1 and Rinse2
1 to 10 minutes for Final Spin.
“IS” The owner can change the displayed value, but for a coin
washer only 0 will be put into the cycle.
COIN WASHER DEFAULT CYCLE
The following table shows the complete details for the coin washer default cycle.
Bath
Bath Cycle
Time
(min.)
Water
Temp.
Water
Level *
Delay Fill Spin Time
(min.)
IS *
Prewash 0
Wash 9 CH LO t 0
Rinse 1 4 CC LO t 1 0
Rinse 2 0
Final
Rinse
5 CC LO t 4 0
Note * These default values are preset and cannot be changed.
Rapid Advance Mode
To enter the Rapid Advance mode, push and hold the Cold water temperature button and then
push the programming button on the controller. There will be no observed change to the washer
or the display. The Rapid Advance mode can be entered from either the Idle mode or during the
cycle. To rapid advance to the next step in the wash cycle, push both warm temperature buttons
at the same time. The display will show an “Ad” (advance) in the display. The washer will
advance to the next bath segment. The water will drain before the advance will occur.
The Rapid Advance mode will not end until the final bath segment is completed. The final
segment cannot be skipped in Rapid Advance mode.
Notes: 1. When the Rapid Advance mode is used, the cycle time will no longer be correct.
2. By skipping steps with rapid advance, the door may not open immediately at the end
of the cycle.

ACCESSORIES
INSTALLATION: (Furnished) QTY.
9990-027-011 Hose, Water Supply 2
8641-242-000 Washer, Inlet Hose 2
9565-003-001 Strainer, Inlet Hose 4
INSTALLATION: (Available through Dexter Distributor):
9242-417-003 3” (76 mm) Flex Drain Hose, 10 ft. length (3 meters)
Contact your distributor or The Dexter Company if a steel-mounting base is required.