Dema 950-1C Installation Manual

DEMA 950 FLUSH MANIFOLD

INSTALLATION INSTRUCTIONS

System Overview

The DEMA 950 Flush Manifold is designed for long reliable use with simplicity and adaptability in mind. The 950 Flush
Manifold can be added to DEMA Laundry Master Models 842, 844, and 845 in order to reduce the number of
chemical feed tubes to the washer.

The small size of the flush manifold was designed for confined spaces. The flush manifold consists of a non-adjustable
20-psi pressure regulator, a flush solenoid valve, a check valve to prevent corrosion of all upstream components, and a
low pressure switch (4 psi).

The following flush manifold models are available with various pump connections:

Model Fitting

950-1B 1/4” Barb Fitting
950-2B 3/8” Barb Fitting
950-1C 1/4” Compression Fitting
950-2C 3/8” Compression Fitting

The following tube connections are available for manifold conversions:

Kit Fitting
95-11 1/4” Barb Fitting
95-12 3/8” Barb Fitting
95-13 1/4” Compression Fitting
95-14 3/8” Compression Fitting
95-15 Plugs (For Unused Ports)
95-16 ¼” Compression Fitting & Nut
95-17 3/8” Compression Fitting & Nut

Note: The flush manifold does not have an approved backflow preventer that protects the potable water

system from contamination. Be sure to have a licensed plumber or tradesperson install a backflow
prevention system that complies with all local plumbing codes.

Please read instructions before proceeding with Flush Manifold installation.

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DEMA 950 FLUSH MANIFOLD

INSTALLATION INSTRUCTIONS

Laundry Room Survey

Survey the laundry room or installation site before installing the Flush Manifold.

1. Select location to mount the Flush Manifold on a wall that will allow close access to the chemical product

containers, the chemical pumping unit, and the flush line feed point of the laundry machine.

2. Mount the Flush Manifold on a wall by use of the screws and wall anchors that are included. Evaluate the wall

condition to assure that the supplied wall anchors are suitable, it may be necessary to use other hardware to
mount the Flush Manifold properly.

Electrical Installation

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

The electrical installation of the Flush Manifold is for installing with the DEMA Laundry Master (Models
842, 844, and 845).

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.

PRESSURE SWITCH

FLUSH

-

PUMP 6

-

PUMP 5

-

PUMP 4

-

PUMP 3

-

PUMP 2

-

PUMP 1

-

RS 485
FLUSH

ALARM

POWER

IN

24V
COM
24V

GND

-

+

+

-

+

IQ-80 CONTROL BOARD 84-3-1

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DEMA 950 FLUSH MANIFOLD

INSTALLATION INSTRUCTIONS

2. Wire the pressure switch to the circuit board terminals labeled FLUSH GND and + on right side of circuit
board. Note: Before wiring the pressure switch to the circuit board, be sure that the jumper between
GND and + terminals on the circuit board is removed. The pressure switch has a maximum rating of 24V
DC (4 Amps) and a maximum operating pressure of 150 PSI.

3. Wire the solenoid valve to the circuit board terminals labeled FLUSH + and – on upper left side of circuit
board. In order for the flush manifold to work properly, the solenoid valve needs to have a rating of 24V DC
and 125 PSI. Note: The solenoid valve is included with the Flush Manifold.

Tubing Connections

ALWAYS WEAR PROTECTIVE CLOTHING AND EYEWEAR WHEN WORKING WITH CHEMICALS.
FOR SAFETY REASONS, AVOID MIXING HAZARDOUS CHEMICALS TOGETHER.

Measure the length of tubing needed for chemical injection from the pump to the flush manifold and cut to the proper
length.

Caution: Keep tubing away from hot surfaces and sharp edges to prevent damage or leakage.

Chemical Inlet For Compression Fitting

Feed the LDPE tubing through the compression nut and into the male compression fitting until the LDPE tubing
touches the wall of the fitting. Tighten the compression nut to secure the LDPE tubing. Route the tubing to the
dispensing side of the pump and insert into the squeeze tube approximately 1/2”. Secure the tubing together by
tightening a cable tie around the squeeze tube.

Chemical Inlet For Barb Fitting

Feed the tubing through the hose clamp and on to the barb fitting. Squeeze the hose clamp together using a pair
of pliers to tighten. Route the tubing to the dispensing side of the pump and insert into the squeeze tube
approximately 1/2”. Secure the tubing together by tightening a cable tie around the squeeze tube.

Manifold Outlet

Feed the 1/2” I.D. tubing through the hose clamp and on to the barb fitting. Squeeze the clamp together using a
pair of pliers to tighten. Route the tubing to the injection point at the laundry machine.

At this point, the Flush Manifold installation is complete. For programming, refer to the Laundry
Dispenser installation manual.

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DEMA 950 FLUSH MANIFOLD

INSTALLATION INSTRUCTIONS

Return Policy and Warranty

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.

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DEMA 950 FLUSH MANIFOLD

INSTALLATION INSTRUCTIONS

80-67-13 1/4" (COMPRESSION NUT)
80-67-15 3/8" (COMPRESSION NUT)

94-2-1 1/4" (COMPRESSION FITTING)
94-2-2 3/8" (COMPRESSION FITTING)

63-46

99-6-1

41-62-2

16-9

96-1 (BRAIDED HOSE 100 FT)
96-2 (BRAIDED HOSE 50 FT)

99-6-1

99-7-1

65-10

150-6

85-23-2

94-3-1 (PLUG (FOR UNUSED PORTS)

30-5V-202

24-24P

24-23-2

100-38

23-20V

99-4-2

99-3-1

23-110V

25-13-1X

41-62-7

99-5-1

16-9-2

16-9-7

94-1-1

1/4" BARB

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SEE PAGE 7 FOR
SOLENOID ASSEMBLY

66-98-6

16-9-2

94-1-2

3/8" BARB

3/8" BARB

98-1-1

(USED WITH

C4)

1/4" BARB

16-9-2 (3/8" BARB)

OR 16-9-7 (1/4" BARB)

OR

(USED WITH

C2 OR C4 PUMP

3/8" BARB

98-1-1

C4)

3/8" BARB

DEMA 950 FLUSH MANIFOLD

INSTALLATION INSTRUCTIONS

GENERAL REPLACEMENT PARTS

PART NO. DESCRIPTION

16-9 Hose Clamp (For 1/2” I.D. Tubing)
16-9-2 Hose Clamp (For 3/8” I.D. Tubing)
16-9-7 Hose Clamp (For 1/4” I.D. Tubing)
23-20V O-Ring (For Manifold End)
23-110V O-Ring (For Plunger)
24-23-2 Spring
24-24P Ball
25-13-1X Pressure Switch (4 PSI)
25-65CE-11 Detergent Squeeze Tube, EPDM-11” (For C2 Pump Only)
25-89CE-14 C4 Squeeze Tube, EPDM-14” (For C4 Pump Only)
30-5V-202 O-Ring (For Check Valve)
41-62-2 #8-18 X 3/8” Long Screw
41-62-7 #8-18 X 1 1/2” Long Screw
63-46 Screw
65-10 Coupling
66-98-6 3/8” I.D. Braided Tubing (For 3/8” Barb Fitting Only)
80-67-13 Compression Nut (For 1/4” O.D. Tubing)
80-67-15 Compression Nut (For 3/8” O.D. Tubing)
85-23-2 Pressure Regulator (20 PSI)
94-1-1 1/4” Barb Fitting
94-1-2 3/8” Barb Fitting
94-2-1 1/4” Compression Fitting
94-2-2 3/8” Compression Fitting
94-3-1 Manifold Cap
96-1 1/2” I.D. Braided Tubing (100’)
96-2 1/2” I.D. Braided Tubing (50’)
98-1-1 3/8” X 3/8” Barbed Connector (for C4 Pump)
98-16-1 3/8” X 1/4” Barbed Connector (for C2 Pump)
99-3-1 Plunger
99-4-2 Spring (Hastelloy)
99-5-1 Pipe Nipple (3/8” NPT X 1 1/2” Long)
99-6-1 Mounting Bracket
99-7-1 Garden Hose Fitting
100-38 Strainer Washer
150-6 Rubber Washer

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DEMA 950 FLUSH MANIFOLD

INSTALLATION INSTRUCTIONS

41-9-5-4-404

44-116-2

41-72-2

61-78

41-34

41-7-25

41-1-8

41-10-11

41-15-5

41-41

44-116-1

41-59-2

41-73

101-1-2

41-36-1

21-8

PART N0.

21-8

41-1-8
41-7-25

41-9-5-4-404
41-10-11
41-15-5
41-34
41-36-1
41-41
41-59-2
41-60
41-72-2
41-73
44-116-1
44-116-2
61-78
101-1-2

41-60

DESCRIPTION

O-RING SEAL
KICK-OFF SPRING
ENCLOSING TUBE
SOLENOID COIL
PLUNGER
DIAPHRAGM
SPACER RING
STRAINER SCREEN
NYLON WASHER
P443 VALVE BODY

SCREEN CAP
FLANGE
SOLENOID COVER
SCREW (2-REQD)
SCREW (1-REQD)
VALVE REPAIR KIT
#8-32 RD. HD. PHILLIP SCREW (2-REQD)

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