Page 1
DEMA SPRAY CLEAN
MODELS: 244BC-1, 244BC-2, 244BC-3, & 244BCE-3
INSTALLATION INSTRUCTIONS
I. PARTS:
A. Injector.
B. Vinyl supply tubing, foot strainer & ceramic weight.
C. Mounting screws and washers (Model 244BC-1 only)
II. INSTALLATION: (See figure 1)
Note: All installations must conform with local plumbing codes and use approved backflow preventers.
A. INJECTOR:
Inle t fits 1/2" NPT water line (e xcept 244BCE-3). Water temperature shou ld not exceed 150°F and pressure
should not exceed 12 5 PS I. The injector may be mounted in any pos ition, b ut t he arrow must point in the
direction of flow. If mounting is insecure, use enclosed mounting screws for attaching to a wall, inserting the
washers between the wall and injector to provide easy attachment of outlet hose.
B. LIQUID DETERGENT OR SANITIZER CONTAINER:
Detergent may be drawn directly from any size container, which usually is set on the floor. Use en cl ose d plasti c
tubing for connecting to injector, first cutting to desired length and dropping the end with the foot strainer and
ceramic weight into the container. Push other end over supply tubing fitting (See figure 3).
III. OPERATION:
WASH or RINSE is controlled by the slide (see Figure 2). For “wash,” the slide must be in the up position. Push th e
slide down for “rinse.”
IV. ADJUSTMENT: (See figure 2)
WARNING: Use care when handlin g hazardous chemicals.
Turn the small recessed screw to adjust the injection rate. Four turns counterclockwise provides the m axim um . Table
2 shows the maximum injection rates in ounces of product per gallon of water obtainable for various fluid viscositie s.
TABLE 1
Viscosity, cps 1 75 220 500
Oz/Gal (maximum) 11.10 3.60 1.50 0.69
V. SERVICING:
A. If unit fails to operate:
1. Is the injector installed with the arrow in the direction of water flow?
2. Is the hose kinked or otherwise obstructed?
3. Is the metering screw backed off?
B. If unit stops operating:
1. Check item 2 above.
2. Is the foot str ainer clogged? Lift tube from drum and clean.
3. Is the check valve clogged? Remove knob screws to disassemble. Inspect and clean ball, spring and o-ring.
CAUTION: When servicing unit be sure that replacement parts have been installed according to the drawing.
I-622 Pg. 1 of 4
Rev. C-11/01
Page 2
DEMA SPRAY CLEAN
MODELS: 244BC-1, 244BC-2, 244BC-3, & 244BCE-3
INSTALLATION INSTRUCTIONS
RETURNS: NO MERCHANDISE MAY BE RETURNED FOR CREDIT WITHOUT DEMA’S WRITTEN
PERMISSION. RETURN MERCHANDISE AUTHORIZATION NUMBER REQUIRED IN
ADVANCE OF RET URN.
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 pro du cts wh ich h ave
a normal life shorter than one year or failure and damage caused by chemicals, corrosion, improper vo lta ge
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 repaire d
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 defectiv e, they will be repaired or replaced without charge, F.O.B. f actory . 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-622 Pg. 2 of 4
Rev. C-11/01
Page 3
DEMA SPRAY CLEAN
MODELS: 244BC-1, 244BC-2, 244BC-3, & 244BCE-3
INSTALLATION INSTRUCTIONS
INJECTOR
WATER SUPPLY
FIGURE 1
CHEMICAL
CONTAINER
VINYL SUPPLY
CERAMIC
WEIGHT
TUBE
METERING SCREW
FOOT STRAINER
SUPPLY TUBING FITTING
WASH/RINSE
CONTROL SLIDE
FIGURE 2
I-622 Pg. 3 of 4
Rev. C-11/01
Page 4
DEMA SPRAY CLEAN
MODELS: 244BC-1, 244BC-2, 244BC-3, & 244BCE-3
INSTALLATION INSTRUCTIONS
ACCESSORIES
24-33
100-24
44-9
24-25
24-24P
24-23
24-34-0
25-29
24-32
44-57
44-56
24-25
24-25
24-8-11
100-12
61-107-2
24-11MP
44-4S
44-3
44-3-6
44-3RG
34-1
150-6
44-55
FOR MODEL 244BC ONLY
PART NO.
24-8-11
24-11MP
24-23
24-24P
24-25
24-32
24-33
24-34-0
25-29
44-9
44-55
44-56
I-622 Pg. 4 of 4
Rev. C-11/01
WATER NOZZLE
FOOT STRAINER
CHECK VALV E SP R ING
CHECK VALVE BALL
CHECK VALVE O-RING
METERING KNOB ASSEMBLY
SCREW - 4 REQ'D.
CHECK VALVE CORE
METERING KNOB O-RING
SET OF TWO MOUNTING S CREWS
W/ SPACERS
BY-PASS VALVE (BOTTOM)
BY-PASS VALVE (TOP)
DESCRIPTION
PART NO.
44-57
61-107-2
100-12
100-24
34-1
44-3
44-3-6
44-4S
44-3RG
150-6
DESCRIPTION
CONNECTING STUD
CERAMI C WEIGHT
8 FEET OF 7/32" I.D. PVC TUBING
METERING SCREW W/ O-RING
ACCESSORIES
PIPE TO HOSE INLET ADAPTER
W/ WASHER
25 FEET OF 1/2" HIGH PRESSURE HOSE
6 FEET OF 1/2" HIGH PRESSURE HOSE
HOSE BRACKET W/ MOUNTING SCREW S
25' X 1/2" RED HOSE W/ POLY GUA RDS
RUBBER WASHER
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