DEMA 153 Installation Instructions Manual

DEMA 153

FAUCET PROPORTIONER

INSTALLATION INSTRUCTIONS

I. PARTS:

A. Proportioner
B. Vinyl tubing, foot valve & ceramic weight
C. Metering tips (2 ea.)

II. INSTALLATION:

This product is designed only to be used as described in this instruction sheet. Adhere to all warnings and
cautions identified in this document.

WARNING: Installations must conform to all local and national plumbing codes and use
approved backflow prevention and pressure relief devices where required.



ALWAYS DISCONNECT DISPENSER FROM WATER SOURCE WHEN DISPENSER
IS NOT IN USE.

Always read SDS for all chemicals used and follow personal protective guidelines.

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Screw proportioner directly onto garden hose type faucets. Remove inlet adapter for mounting onto standard external aerator threads.
For other faucets see reverse side for adapter part numbers. Select a metering tip (See section IV) and screw it into inlet barb (See
figure 1). Cut vinyl tubing to any convenient length, slip on the ceramic weight, and push the open end over the inlet barb. Soften
end of tubing in hot water to facilitate attachment.

III. OPERATION:

Turn on water and press blue button to draw in chemical. When the water is turned off, the proportioner will reset to dispense clear
water.

IV. CHEMICAL PROPORTIONING ADJUSTMENT:

WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICAL.

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FAUCET PROPORTIONER

INSTALLATION INSTRUCTIONS

Chemical feed rates are controlled by metering tips screwed into the inlet barb. Injecti on rates f or various settings and for products of
different viscosities are as follows:

1 cps (centipoise) is equal to the viscosity of water
75 cps is approximately equal to the viscosity of 10 weight motor oil
200 cps is approximately equal to the viscosity of most dishwashing detergents

TABLE 1

Injection Rates For Viscosities Shown

Metering

Tip Color

Tan

Orange

Turquoise

Pink

Clear

Brown

Red

White

Green

Blue

Yellow

Black

Purple

Gray

No Tip

Note: The maximum injection rates of viscous materials can be increased by using oversized tubing Dema part number 100­12L.

1 cps 30 cps 75 cps 200 cps

Oz/Ga

l

0.25 512-1 0.20 640-1 0.17 753-1 0.15 853-1

0.33 384-1 0.30 427-1 0.25 512-1 0.20 640-1

0.50 256-1 0.40 320-1 0.33 384-1 0.25 512-1

0.63 203-1 0.50 256-1 0.45 284-1 0.33 384-1

0.75 171-1 0.70 183-1 0.60 213-1 0.45 284-1

1.00 128-1 0.85 151-1 0.70 183-1 0.50 256-1

1.25 116-1 1.00 128-1 0.80 160-1 0.60 213-1

1.50 85-1 1.25 102-1 1.00 128-1 0.70 183-1

1.75 73-1 1.50 85-1 1.15 111-1 0.75 171-1

2.00 64-1 1.25 73-1 1.35 95-1 0.85 150-1

3.20 40-1 2.50 51-1 1.85 69-1 0.90 142-1

4.00 32-1 3.20 40-1 2.20 58-1 0.95 135-1

6.40 20-1 5.00 25-1 2.50 51-1 1.00 128-1

10.00 12-1 5.50 23-1 2.75 47-1 1.05 122-1

12.00 10-1 6.40 20-1 3.20 40-1 1.10 116-1

Ratio

Oz/Ga

l

Ratio

Oz/Ga

l

Ratio

Oz/Ga

l

Ratio

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FAUCET PROPORTIONER

INSTALLATION INSTRUCTIONS

V. SERVICING:

CAUTION: Turn off water supply before servicing.

A. Failure to inject chemical?

1. Low water pressure. At least 15 psi is required.

2. Dirt or chemical on outlet screens. Clean.

3. Blue button does not seal when pushed. Remove and inspect for dirt or damage.

4. Chemical passage blocked. Remove metering tip, then remove proportioner and soak in hot water to clean internal passages.

5. Foot valve clogged. Soak in hot water.

6. Lime deposits in water passages. Remove proportioner and soak in deliming solution.

7. Conical inlet screen 150-34 is dirty or missing. Clean or replace.

B. Injects continuously?

1. Button fails to reset because of damage to button, retainer or spring.

2. Vacuum breaking air vents in button retainer are clogged with grease or dirt. Clean.

3. Chemical container above level of faucet. Place container on floor.

CAUTION: When servicing unit be sure that replacement parts have been installed according to drawing.

RETURNS: NO MERCHANDISE MAY BE RETURNED FOR CREDIT WITHOUT DEMA’S WRITTEN

PERMISSION. RETURN MERCHANDISE AUTHORIZATION 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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FAUCET PROPORTIONER

INSTALLATION INSTRUCTIONS

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FAUCET PROPORTIONER

INSTALLATION INSTRUCTIONS

CHICAGO

FAUCET

AERATOR

17

EXTERNAL

AERATOR

THREAD

14

GARDEN

HOSE

THREAD

7

INTERNAL
AERATOR

THREAD

8

9

18
19

* 1

* 3

* 2

THREADLESS

OR ODD
SHAPED
FAUCET

20

21

1110 12 13

15

*ITEMS IN REPAIR KIT

NO. PART NO. DESCRIPTION

1 * 150-34 Inlet Screen Washer
2 * 100-29 Button Spring
3 * 100-26 Push Button

4 100-36 Button Retainer
5 * 100-33 Outlet Screen (Conical)
6 * 100-19 Outlet Screen (Flat) (2 Req’d)
7 * 100-15 Metering Tip (Specify Color)
8 * 150-6 Adapter Washer

9 150-10 Hose Thread Adapter w/Washer

100-12 7/32” ID x 3/8”OD x 8’ Lg. Supply

10

100-12E 7/32” ID x 3/8”OD x 50’ Lg. Supply

11

12 100-12L

Tubing

Tubing
3/8” ID x 1/2”OD x 8’ Lg. Supply

Tubing

NO. 100-52

* 5

* 6

* 4

16

4

NO. PART NO. DESCRIPTION

13 100-12LE

3/8” ID x 1/2”OD x 50’ Lg. Supply

Tubing
14 61-107-2 Ceramic Weight
15 100-16E Foot Valve
16 100-52 Repair Kit

NO. PART NO. DESCRIPTION

17 150-23 Outside Chicago Thread Adapter
18 150-21 Inside Aerator Thread Adapter
19 150-32 Inside Kohler Thread Adapter
20 150-9-2 Irregular Faucet Adapter
21 100-14M Coupling For ¼” ID x 8’ Lg. Tubing

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