Dema 606T Installation Manual

DEMA MODELS 606T

INSTALLATION INSTRUCTIONS

I. PARTS:

A. Select-O-Spray Assembly
B. 2 Pcs. Foot Strainers & 1/4" ID Tubing
C. 4 Pcs. Mounting Screws & Anchors
D. 1 Pc. 100-15K Metering Tip Kit

II. INSTALLATION:

A. Mounting and Water Supply.

Mount the unit on a vertical surface using the 4 screws provided through the mounting holes in the cover. The water inlet is
equipped with a female garden hose fitting. The fitting may be removed to permit direct connection to 1/2" NPT pipe. Water
supply pressure should not exceed 125 PSI. Water temperature must not exceed 160 degrees Fahrenheit.

B. Outlet Connection.

Connect the discharge hoses to the outlet garden hose fitting. Spray guns, spray nozzles or foaming wands may be used on the
hose outlets, note that the Select-O-Spray is designed to operate with nozzle flow rates not less than 4 GPM total at 40 PSI.
When a spray gun or nozzle is used, hose lengths must not exceed those shown in Table 1. Hoses, spray guns and f oam wands
are available through Dema. See the parts list on page 5, under Optional Accessories for various styles.

C. Chemical Supply.

WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICALS.

Place the chemical container in a conveni ent location no t more than six f eet below the Select-O-Spray. (Grea te r l if t s w i ll red u ce
injection capabilities). The top of the container should not be above the Select-O-Spray. Cut the vinyl tubes to any convenient
length that will allow the tubing to reach the bottom of the container. Drop the tubing ends with the strainers into the chemical
containers. Push the other tubing ends over the chemical inlet barbs located on the sides of the unit.

III. FEED RATE ADJUSTMENT:

Mod el 606T:
The chemical f eed rate is controlled by a metering tip screwed into the metering barb on the side of the unit. The feed rates can be
changed by using a different size metering tip, which is available through Dema (See parts list on page 5). To select a proper size
metering tip for the desired dilution ratio refer to Table 2.

TABLE 1

Hose I.D. 3/8" 1/2" 5/8"
Max. Length 15 ft. 50 ft. 100 ft.

IV. OPERATION:

A. Select-O-Spray permits the operator to select one of two chemicals or clear water rinse by opening an d closing t he a ppro pria te

valve. O nly one valve s hould b e op ened a t any time. If two valves are opened simultaneously, the injector will not induct
chemical. When using a spray gun or foaming wand make sure that the gun on the end of the hose is in the full open position
when inducting chemical.

V. SERVICING:

CAUTION: TURN OF F WATER SUPPLY BEFORE SERVICING.

A. If unit fails to draw chemical.

1. Is more than one valve open?

2. Is the hose too long? (See Tab le #1)

3. Is the gun or nozzle( s) sized p rop erly? (Refer to Section II B). Remove gun and/or nozzle(s) and turn on water. If the
injector inducts chemical, the gun and nozzle(s) are improperly sized.

4. Is the metering tip blocked? Remove tip and clear blockage.

5. Is the hose kinked or otherwise obstructed?

6. Is the spr ay gun fully op en?

B. If unit stops dr awing chemical.

1. Is the foot str aine r clogged? Lift from drum and clean.

2. Are the sp ray nozzle(s) partially clogged? Remove and clean.

3. Is the metering tip blocked? Remove and clean.

4. Is the injector ch eck valv e clogged? Unscrew the four cover screws to take the Select-O-Spray uni t o ff t he wal l. Remo v e t h e
three ball valve handles to separate the cover from the manifold. Remove the square, plastic metering knobs to inspect the
check valve ball, spring and O-ring.

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DEMA MODELS 606T

INSTALLATION INSTRUCTIONS

CAUTION: WHEN SERVICING UNIT BE SURE THAT REPLACEMENT PARTS HAVE BEEN INSTALLED

ACCORDING TO DRAWING. BE CERTAIN CHECK VALVE PARTS ARE IN PLACE.

TABLE 2

SELECT-O-SPRAY DEMA MODEL 606T

METERING TIP SELECTION CHART

FLUID DILUTION RATIOS

METERING TIPS (100-15)

Injection Rate for Viscosities Shown

Metering Tip Color

Oz/Gal Ratio Oz/Gal Ratio Oz/Gal Ratio

Tan 0.40 320-1 0.25 512-1 0.20 640-1
Orange 0.50 256-1 0.35 366-1 0.25 512-1
Turquoise 0.70 183-1 0.50 256-1 0.35 366-1
Pink 0.95 135-1 0.65 197-1 0.45 284-1
Clear 1.30 98-1 0.80 160-1 0.55 233-1
Brown 1.50 85-1 0.90 142-1 0.60 213-1
Red 1.90 67-1 1.00 128-1 0.70 183-1
White 2.20 58-1 1.30 98-1 0.80 160-1
Green 2.60 49-1 1.50 85-1 0.90 142-1
Blue 3.20 40-1 1.75 73-1 1.00 128-1
Yellow 4.85 26-1 2.25 57-1 1.10 116-1
Black 6.50 20-1 2.40 53-1 1.15 111-1
Purple 9.20 14-1 2.70 47-1 1.20 107-1
Gray 10.40 12-1 2.85 45-1 1.25 102-1
No Tip 12.80 10-1 3.50 37-1 1.55 83-1

1 cps 75 cps 200 cps

All injection ratios are based on 40 PSI inlet water pressure and a water flow rate of 2.8 GPM.

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

PERMISSION. RETURN MERCHANDISE AUTHORI ZATION NUMBER RE QUIRED 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 ca use d by chemicals, corr osi on, impr op er voltage s up p ly, physical
abuse, or misapplication. Rubber and synthetic rubber parts such as “o”- rings, diaphragms, squeeze tubing and
gaskets ar e cons idered exp endab le and ar e not cover ed under war ranty. This war ranty is extended only to the
original b uyer of DEMA products. If products a re altered or repair ed without prior ap proval 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 r eplaced 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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Rev. D-34317 3/09

CHEMICAL

VALVE #1

DEMA MODELS 606T

INSTALLATION INSTRUCTIONS

WATER

INLET

CHEMICAL
VALVE #2

CLEAR

RINSE

METERING

TIP

LOCATION

WATER/CHEMICAL

SOLUTION OUTLET

(GARDEN HOSE

OUTLE T)

METERING

TIP

LOCATION

CLEAR VINYL

SUCTION TUBE

WITH FOOT
STRAINER

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Rev. D-34317 3/09

DEMA MODELS 606T

INSTALLATION INSTRUCTIONS

2

3

1

4

5

6

8

10

11

OPTIONAL ACCESSORIES

15

16

17

6

12

7

9

13

18
19
20

14

INL ET

VENT

21

NO. PART NO. DESCRIPTION

1 66-153 Pipe Plug w/O-Ring
2 65-100-1 Inlet Adapter Stem
3 65-10 Swivel Coupling
4 100-38 Strainer Washer
5 65-2

81-19-20

6 P203CTC Injector (exploded view shown on

7 76-2-3 Worm Screw Clamp
8 99-5-11 3/8 NPT Pipe x 5 1/5” Lg.
9 66-99-9 Elbow Hose Barb

10 63-47 3/8 NPT Inlet Adapter

Ball Valve
Screw for Ball Valve Turn Knob

separate page)

NO. PART NO. DESCRIPTION

12 100-12 Vinyl Tubing ¼”I.D. x 8’ LG
13 61-107-2 Ceramic Weight
14 24-11MP Foot Strainer
15 292QD Foam Wand w/Quick Disconnect
16 40-14QD Heavy Duty Spray Gun w/Quick

Disconnect

17 40-14HD Heavy Duty Spray Gun
18 44-3 Hose (Black) 25’x ½” I.D.
19 44-3RG Hose (Red) Spring Guard 25’x ½” I.D.
20 44-3W Hose (White) 25’x ½” I.D.
21 44-89 Backflow Preventer (A.S.S.E. 1012)

11 65-18-1 3/8 NPT Outlet Adapter

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DEMA MODELS 606T

P203CTC INJECTOR BREAKDOWN

INSTALLATION INSTRUCTIONS

1

210

4

5

6

7

8

9

NO. PART NO. DESCRIPTION

1 24-67 Screw (4 Req’d.)
2 100-15- Metering Tip (Specify Color)
3 24-62-SP Check Valve Repair Kit
4 24-25S O-Ring
5 24-24P Check Valve Ball
6 24-23-2 Check Valve Spring
7 24-34-7 Check Valve Core
8 25-29S O-Ring
9 24-68 Injector Body (P203C Series)

3

NO. PART NO. DESCRIPTION

10 100-15K Metering Tip Kit

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