DEMA Laundry Master 830 Installation Instructions Manual

DEMA 830 Laundry Master

TM

Installation Instructions

I-656 Pg. 1 of 9
Rev D28632

DEMA 830 Laundry Master

SYSTEM OVERVIEW

The DEMA 830 Laundry Master is designed for long reliable use with simplicity in mind for both the
installer and user. The system is based on the reliable DEMA peristaltic pump for liquid chemical or a
solenoid operated water valve for dry chemical. The pump or water valve is installed in a heavy plastic
housing with a sealed cover that uses a Lexan label for access of external control and visible indicators.

The pump is available in two different speeds, 60 and 105 RPM.

The control board will accept an AC or DC trigger signal from the laundry machine to control the
operation of the pump or valve. All units are equipped with a built in transformer with primary voltages of
120, 208, and 240 at 50/60Hz.

Please read all instructions before proceeding with Laundry Master installation.

LAUNDRY ROOM SURVEY

A complete survey of the laundry room or sight installation should be completed in advance of starting
the Laundry Master installation.

1. Locate the power connection points on the laundry machine. This power must be between 95 and 250

volts 50/60Hz.

TM

Installation Instructions

2. Select location to mount the Laundry Master on a wall that will allow access to the chemical product

containers and the chemical product feeds points on the laundry machine. Laundry Master should be
kept away from moisture releasing machinery and from water being splashed on the unit.

3. Mount the Laundry Master on a wall by use of the supplied hanger kit and screw and anchor kit.

Note: The supplied screw and wall anchors may not be suitable. The wall construction at point of
installation should be evaluated to determine the proper type of screw and wall anchor.

ELECTRICAL INSTALLATION
All installations must be in accordance with city, county, state or provincial electrical codes and be
performed by a certified electrician. For questions, please contact local licensed electrical
contractor.

1. BEFORE GOING ANY FURTHER, ALL ELECTRICAL POWER MUST BE TURNED OFF

TO THE LAUNDRY MACHINE AND ANY OTHER CIRCUIT THAT IS TO BE USED FOR
THIS INSTALLATION. LOCKOUT AND TAG PROCEDURES SHOULD BE OBSERVED
WHEN INSTALLING THIS DEVICE. NEVER OPEN THE LAUNDRY MASTER UNLESS
POWER HAS BEEN TURNED OFF. SIGNALS MAY BE PRESENT FROM LAUNDRY
MACHINE, EVEN WITH THE LAUNDRY MASTER POWER TURNED OFF. ONLY USE
ELECTRICAL CODE APPROVED INSULATED WIRING AND ELECTRICAL FIXTURES
WITH THIS INSTALLATION.

2. Connect the power to the Laundry Master. This may be 120V, 208V or 240V 50/60Hz. Power should

be applied to Laundry Master anytime the laundry machine is on. Some laundry machines have a
terminal block setup for power, see schematic or owners manual for the specific machine being used.
Locate the power terminal block inside the Laundry Master enclosure. Connect “hot” or “live” wire
to the terminal labeled “line”. Connect the “return line” to the appropriate terminal block position
based on supply voltage. The “earth ground” wire must be fastened to the terminal block bracket by
use of the supplied grounding clip. The power line should be secured by use of proper electrical fitting

I-656 Pg. 2 of 9
Rev D28632

DEMA 830 Laundry Master

TM

Installation Instructions

through access hole in Laundry Master enclosure. The power line must also be secured properly
between the laundry machine or power source and Laundry Master.

3. Connect the trigger signal output to the Laundry Master. The trigger signal may be between 24V and

240V AC or DC. Some laundry machines are equipped with a terminal block that is designed to feed
this signal. Locate the trigger connection points on the circuit board inside the Laundry Master
enclosure. Run appropriate wiring between the laundry machine trigger connection points and the
Laundry Master trigger connection points. Trigger lines should be properly secured by use of proper
electrical fitting through access hole in Laundry Master enclosure. The signal line must be properly
secured between the laundry machine and Laundry Master enclosure.

Note: When using a DC trigger source it is necessary to wire the positive lead to the trigger
terminal pin that is identified with “+” symbol for proper operation. The positive pin can be
identified by removing the modular connector from the board and observing the “+” symbol printed
on the board.

81-35 (FUSE HOLDER)
81-34-16 (FUSE)

BLACK

LAUNDRY MACHINE TRIGGER

24-240 AC OR DC

{

BLACK

BLACK

WHITE

208

120

VAC

LINE

VAC

RET

RET

DETERGENT CONNECT

BLUE

240

VAC
RET

RED

80-70

81-36-2

44-116-2

81-10-4

BLACK

RED

81-31-1

81-32-2

+

OUT

­+

24V

MOTOR

85-38-2

81-20-2

81-13-6

Wiring Diagram

I-656 Pg. 3 of 9
Rev D28632

DEMA 830 Laundry Master

Tubing Connections
ALWAYS WEAR PROTECTIVE CLOTHING AND SAFETY EYEWEAR WHEN WORKING
WITH CHEMICALS.

Included in the installation kit is a 20ft roll of LDPE tubing per pump to connect from the chemical
container, via the pump, and to the fittings on the machine.

Liquid Detergent (pump)

Measure the length of the tubing needed for the suction side from the chemical container to the inlet of
pump and cut the tubing to the proper length. Install LDPE tubing into pick-up tubes (gray PVC) through
compression nut until the tube is within ¼” of the other end of pickup tube. Tighten nut to secure. When
properly installed the LDPE tubing will not stick out the open end of pick up tube. Route the tubing to the
suction side of the pump and insert into squeeze tube approximately ½”. Secure the tubing together by
tightening a cable tie around the squeeze tube. Use the same procedure on the outlet of the squeeze tubing
and route the LDPE tubing to the injection feed points of the machine. Cut off all excess tubing and keep
tubing away from hot surfaces and sharp edges to prevent damage or leakage.

Dry Detergent (valve)

Use ¼” compression fittings to connect ¼” LDPE tubing between the outlet of the solenoid valve on
Laundry Master and the inlet of the siphon breaker on the dry chemical product dispenser.

TM

Installation Instructions

At this point the Laundry Master installation is complete.

PROGRAMMING, OPERATION AND SETUP (Jumpers and Lockout Time)
General Operation

When a trigger signal is received from the laundry machine, the control will run its program. A two­second delay will occur to make sure the trigger is not a false signal. The control will then delay
operation for the programmed delay time. This allows the laundry machine time to fill with water before
adding chemical. At the end of this delay the pump will run for the programmed time. The control will
then lockout, preventing re-triggering for programmed period of time.

Jumper Installation

See figure 1, 2, and 3 for proper jumper installation.

• When the jumper is in the off position the board is setup for receiving triggers from the laundry

machine (See Figure 2).

• When the jumper is in the on position, the control board is setup to operate using the DEMA optional

remote kit (See Figure 1).

I-656 Pg. 4 of 9
Rev D28632

DEMA 830 Laundry Master

Figure 1 Figure 2

TM

Installation Instructions

DIP SWITCHES

JUMPER (SEE
FIGURE 1 AND 2)

HOOK UP TERMINALS

Figure 3

I-656 Pg. 5 of 9
Rev D28632

DEMA 830 Laundry Master

Programming

It is helpful to know the amount of chemical product to be dispensed before programming the Laundry
Master. To assure that a specific application is satisfied, it is recommended that the output rate of the
specific chemical product be measured by use of a graduated cylinder.

The programming function will set the delay time and the amount of time that the pump will run when a
trigger signal is received from the laundry machine.

1. Note that the front face of the Laundry Master has a button labeled “PROG/PRIME” and a round

window labeled “ CHARGE”.

2. Press and hold the “PROG/PRIME” button to activate the programming function. The “ CHARGE”

light will illuminate. Continue holding the button for about 8 seconds until charge light goes out,
turns on, and then begins flashing. Release the button.

3. The “CHARGE” light will continue to flash. The delay time is now being recorded. This time can be

set between 0 and 4 minutes 15 seconds.

4. Press the “PROG/PRIME” to stop the delay time. The pump will begin to run. The pump run time is

now being recorded. The minimum amount of time is 10 seconds and the maximum amount of time is
4 minutes and 15 seconds.

5. Allow Laundry Master to pump for the desired amount of time. Push the “PROG/PRIME” button to set

that amount of time and exit the programming function.

TM

Installation Instructions

Lockout Time

The lockout time is set via four DIP switches found on the control board inside the Laundry Master
enclosure. See Figure 3 for DIP switch location.

Lockout Time Switch 1 Switch 2 Switch 3 Switch 4

0 Minutes OFF OFF OFF OFF

5 Minutes ON OFF OFF OFF
10 Minutes OFF ON OFF OFF
15 Minutes ON ON OFF OFF
20 Minutes OFF OFF ON OFF
25 Minutes ON OFF ON OFF
30 Minutes OFF ON ON OFF
35 Minutes ON ON ON OFF
40 Minutes OFF OFF OFF ON
45 Minutes ON OFF OFF ON
50 Minutes OFF ON OFF ON
55 Minutes ON ON OFF ON
60 Minutes OFF OFF ON ON
65 Minutes ON OFF ON ON
70 Minutes OFF ON ON ON
75 Minutes ON ON ON ON

Testing the Program

Pressing and holding the “PROG/PRIME” button activates the test function. The “ CHARGE” light will
illuminate. Continue holding the button for about five seconds until charge light goes out. Release the
button. Then press and release “ PROG/PRIME” button within ½ second. The “CHARGE” light will
illuminate indicating the program is running. It will stay illuminated for the delay time. The light will be

I-656 Pg. 6 of 9
Rev D28632

DEMA 830 Laundry Master

illuminated and the pump will run for the programmed time. The lockout time will be ignored at the end
of the test.

Priming

The prime function will run the pump for the length of time that the “PROG/PRIME” button is pressed.
This function is used to prime an empty suction and discharge tube. Pressing and holding the
“PROG/PRIME” button activates the prime function. The “ CHARGE” light will illuminate. Continue
holding the button for about five seconds until charge light goes out. Release the button. Then press and
hold “PROG/PRIME” button for as long as needed to prime the pump and tubing.

Replacement Parts

TM

Installation Instructions

I-656 Pg. 7 of 9
Rev D28632

DEMA 830 Laundry Master

DEMA General Replacement Parts

DEMA Part Number Description

81-2 Laundry Master box with gasket and threaded inserts
81-5 Laundry Master box lid with captive screws

80-70 Transformer (40VA)

81-10-4 Terminal Block and Bracket Assy

44-116-2 #8 X 3/8” Hi-Lo Screw (used for mounting transformer)

85-38-5 Single Product Laundry Control Board (circuit board)
81-20-2 #4 Hi-Lo Screw (used for mounting circuit board)
81-13-6 Modular 6 Pole Terminal Block (used on circuit board)

80-59-60 60 RPM Gear/Motor

80-59-105 105 RPM Gear/Motor
25-65CE-11 Squeeze Tube for C2 pump
25-89CE-14 Squeeze Tube for C4 pump

81-35 Fuse Holder

81-34-16 Fuse 1A 250V

81-36-2 Wire Nut
81-32-1 Black Cable Assembly (motor hook up)
81-32-2 Red Cable Assembly (motor hook up)

TM

Installation Instructions

DEMA C2 Pump Parts

DEMA Part No. Description

25-91-C2 C2 Pump Head Gasket

25-67C2-2 C2 Pump Head

25-84C2 C2 Roller Block (2 roller)

25-83C2-2 C2 Face Plate

25-85S #10-32 X 1 ¾” Machine Screw
25-85L #10-32 X 2 ¼” Machine Screw

25-C2D C2 Pump Head Kit (kit includes C2 Pump parts listed above)

I-656 Pg. 8 of 9
Rev D28632

DEMA 830 Laundry Master

DEMA C4 Pump Parts

DEMA Part No. Description

81-63 C4 Adapter Plate

25-114C4 C4 Pump Head Gasket

25-129-1 C4 Pump Head Assembly

25-86C4 C4 Roller Block Assembly
25-87C4 C4 Face Plate

25-85-5 #10-32 X 1” Machine Screw

25-130-1 C4 Pump Head Kit (kit includes C4 Pump parts listed above)

TM

Installation Instructions

DEMA Laundry Master Accessories

DEMA Part Number Description

81-1 Mounting Bracket Kit

81-6 Hinge and Screw Kit
25-68-20 20 ft ¼” O.D. LDPE Tubing (used on C2 Pump)
25-68-40 40 ft ¼” O.D. LDPE Tubing (used on C2 Pump)
25-68-60 60 ft ¼” O.D. LDPE Tubing (used on C2 Pump)
25-68-80 80 ft ¼” O.D. LDPE Tubing (used on C2 Pump)

25-68-100 100 ft ¼” O.D. LDPE Tubing (used on C2 Pump)
25-68-120 120 ft ¼” O.D. LDPE Tubing (used on C2 Pump)

25-115 20 ft 3/8” O.D. LDPE Tubing (used on C4 Pump)
25-115-40 40 ft 3/8” O.D. LDPE Tubing (used on C4 Pump)
25-115-60 60 ft 3/8” O.D. LDPE Tubing (used on C4 Pump)
25-115-80 80 ft 3/8” O.D. LDPE Tubing (used on C4 Pump)

25-115-100 100 ft 3/8” O.D. LDPE Tubing (used on C4 Pump)
25-115-120 120 ft 3/8” O.D. LDPE Tubing (used on C4 Pump)

80-66 10” PVC Pick Up Tube (used with ¼” LDPE tubing)

80-66-2 18” PVC Pick Up Tube (used with ¼” LDPE tubing)

Return Policy No merchandise may be returned for credit without DEMA Engineering Company’s written permission. Return Merchandise
Authorization (RMA) number required in advance of return.

Warranty DEMA products are warranted against defective material and workmanship under normal use and service for one year from the
date of manufacture. This limited warranty does not apply to any products which have a normal life shorter than one year or failure and
damage caused by chemicals, corrosion, improper voltage supply, physical abuse or misapplication. Rubber and synthetic rubber parts such
as “O”-rings, diaphragms, squeeze tubing and gaskets are considered expendable and are not covered under warranty. This warranty is
extended only to the original buyer of DEMA products. If products are altered or repaired without prior approval of DEMA, this warranty
will be void.

Defective units or parts should be returned to the factory with transportation prepaid. If inspection shows them to be defective, they will be
repaired or replaced without charge. F.O.B. factory DEMA assumes no liability for damages. Return merchandise authorization number to
return units for repair or replacement must be granted in advance of return.

I-656 Pg. 9 of 9
Rev D28632