Specifications

00218012 Revision B (KAK) 7 August, 2000
28
Multiplex Company, Inc.
Fountain Troubleshooting Guide
Troubleshooting Guide
WARNING: Inspection, testing, and repair of elec-
trical equipment should be performed only by
qualified service personnel. The unit should be
unplugged when servicing, except when electri-
cal tests are required.
DANGER: Use extreme care during electrical cir-
cuit tests. Live circuits may be exposed.
Section 8: Syrup System
Qualifier Probable Cause Corrective Action
No syrup of insufficient
syrup in finished drink.
Syrup Tank is empty.
Kinked Syrup lines.
Low Pressure Regulator in-
operative.
Medium Pressure Regulator
inoperative.
Check Relief valve re-
stricted.
Gas/Syrup Tank Plug Valves
inoperative.
Quick Disconnects (Gas or
Syrup) not fully engaged on
Syrup Tank.
Quick Disconnect Valves or
Tank Jumper inoperative.
Replace Syrup tank and purge air out of Dis-
pensing Valves affected, until steady syrup sup-
ply is dispensed.
Examine all exposed Syrup Lines and relieve
any sharp bends or kinks.
Note: Observe all independent lines from Syrup
Tank to Filters for kinks or bends. Correct as
needed.
Low Pressure Regulator controls the pressure
to diet beverages. Verify pressure is set at 15psi
(1.1 kg/cm
2
). To increase, adjust clockwise, to
decrease, adjust counterclockwise. If regula-
tor does not respond, repair or replace regula-
tor.
Medium Regulator controls the pressure applied
to the sugar based beverages. Verify pressure
is set at 60 psi (4.2 kg/cm
2
). To increase, ad-
just clockwise. To decrease, adjust counter-
clockwise. If regulator does not respond, re-
pair or replace regulator.
Disengage Gas Quick Disconnect on suspected
restricted flavor at Syrup Tank. Depress Poppet
valve on bottom side of Gas Disconnect. If a
low or poor pressure supply is apparent, replace
Check Relief valve.
Replace Syrup Tank. If this solves the problem,
tag defective tank so bottler can make neces-
sary repairs. (It is extremely rare to have inop-
erative Tank Plug Valves.)
Disengage Quick Disconnects on one Tank at a
time. Rinse and clean with warm water. Lubri-
cate the O-ring on the Syrup Tank Plug with
water. Reattach the Quick Disconnects to the
appropriate Syrup Tank Plug. Gas Quick Discon-
nects are gray or have two key slots. Syrup
Quick Disconnects are black or have three key
slots.
Gas Quick Disconnects: Open the Relief valve
on the top of the syrup tank lid. If the Gas Quick
Disconnect is opening properly, pressure should
continue to bleed from the Gas Relief valve. If
not, replace Gas Quick Disconnect. Syrup Quick
Disconnects: Open the Dispensing valve (Syrup
Side only) for appropriate flavor. Dispensing
syrup for at least 10 seconds. If CO
2/Air pock-
ets appear in syrup, replace Syrup Quick Dis-
connect. If syrup flow is inadequate or fluctu-
ates during 10 seconds of flow, replace Syrup
Quick Disconnects.