DEMA 153
FAUCET PROPORTIONER
INSTALLATION INSTRUCTIONS
I
-103
Pg. 3 of 5
Rev. E-34613 6/26/09
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.