DEMA SINGLE-FEED
MODEL: 651GAP, 651GAP-1 & 651GAP-1M
INSTALLATION INSTRUCTIONS
I-781
Pg. 1 of 6
Rev. G-42173 10/04/16
The Model 651GAP is designed to dispense one product into a kitchen sink with the turn of a ball valve.
I. PARTS:
ITEM DESCRIPTION
QTY.
A
Dispenser Assembly
1
B
½” ID X 6’ Long Vinyl Outlet Tubing (For 4 GPM Station Only)
1
C
¼” ID X 8’ Long Vinyl Supply Tubing
1
D Foot
Valve
1
E Ceramic
Weight
1
F
#10 Screws & Anchor Kit
1
G
Metering Tip Kit
1
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. The unit needs to be mounted high enough that the sink does not
interfere with the outlet tube, putting a strain on the proportioner. Drill all holes into the drywall using a ¼” diameter bit for
use with the included #10 screw & anchor set. (If mounting dispenser to wood and you do not plan to use the anchors, drill
1/8” diameter holes 1” deep.) Insert the anchors into drilled holes and hammer them into the wall until they are flush with
face of wall. Assemble all of the #10 screws with a Phillips screwdriver into the anchors so the screw heads are sticking
out of the wall approximately 1/8”. Mount the unit by inserting the screw heads through the keyhole slots and tighten the
screws. Secure unit by inserting screws into the lower 2 holes.
The water inlet is equipped with a female garden hose fitting (with strainer washer) for attaching a water supply hose. The
water inlet may be removed to permit direct connection to a 1/4" NPT pipe. The unit is designed so water can be supplied to
either side by interchanging the pipe plug with the water inlet assembly.
Note: Apply pipe dope, hand tighten, then turn 1-½ times with a wrench.
Do not over tighten.
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.
Slip a ceramic weight over the chemical supply tubing and insert the foot valve end of the
tubing 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. Install the other end of the tubing by pushing tubing over
proportioner inlet barb.
C. Outlet
Tubing:
For the 4 GPM proportioner outlet: Cut a piece of the ½” I.D. outlet tubing to the desired length and attach to the
proportioner outlet barb.
Do not force tubing onto the larger barbs on the proportioner.
Note: Outlet tube may be
anchored to the wall or faucet to prevent damage to the proportioner.
Caution
:
To prevent continuous siphoning, the outlet of the discharge tubing should not be below the level of
chemical in the container.
