DEMA 651AG SINGLE-FEED
INSTALLATION INSTRUCTIONS
I-715
Pg. 1 of 5
Rev. F- 42173 10/04/16
I. PARTS:
A. Dispenser
assembly
B. 1 pc. 9/16 in. I.D. X 6 ft. vinyl outlet tubing (4 GPM proportioner only).
C. 1 pc. 3/8 in. O.D. X 8 ft. vinyl supply tubing, foot valve & ceramic weight.
D. 4 pc. #10 pan head 3/4 in. long mounting screw.
E. 4 pc. 7/8 in. long plastic mounting anchor.
F. 1 pc. Metering tip kit.
II.
INSTALLATION:
(See Figure 1 for setup diagram)
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.
A. Mounting and Water Supply:
Locate mounting holes on a permanent surface above sink. Drill holes about 1” deep and insert mounting anchors. Mount
the unit using screws inserted through the keyholes in the case. Secure unit by inserting screws into the lower 2 holes. The
unit needs to be mounted high enough that the sink does not interfere with the outlet tube, putting a strain on the
proportioner.
The water inlet is equipped with a female garden hose adapter to permit connection to the right hand side of the unit. The
water supply can be attached to the left side of the unit by interchanging the plug in the left-hand side with the garden hose
adapter.
Note: The water supply pressure should not exceed 150 psi.
B. Chemical Supply:
Place the chemical container in a convenient location not more than 6 ft. below the dispensing unit.
Note: greater lifts will
reduce injection capacities.
Insert the end with the foot valve of the 8 ft long, 3/8 in. O.D. vinyl tube into the chemical
container. Cut the vinyl tube to any convenient length that will allow the tube to extend from the bottom of the chemical
container to the proportioner inlet barb. Slide the ceramic weight over the 3/8 in. O.D. tubing and down to the foot valve.
C. Outlet:
For the 4 GPM proportioner outlet: Cut a piece of the 9/16 in. I.D. outlet tubing into the desired length and attach to the
proportioner outlet.
Note: To insure priming, do not cut tubing to less than 18 in.
Caution
:
To prevent continuous siphoning, the outlet of the discharge tubing should not be below the level of
chemical in the container.
Outlet tube may be anchored to the wall or faucet to prevent damage to the proportioner.
D. Injection Adjustment:
WARNING: USE CARE WHEN HANDLING HAZARDOUS CHEMICALS.
Chemical feed rates are controlled by metering tips screwed into the proportioner barb. Use Table 1 for 1 GPM proportioner
and Table 2 for 4 GPM proportioner as a guide for tip selection.
Note: 1 cps (centipoise) is equal to the viscosity of water, 75 cps is approximately equal to the viscosity of 10 weight
motor oil, and 200 cps is approximately equal to the viscosity of many dishwashing detergents.
