0713
24
SERVICE AND MAINTENANCE
POST–MIX DISPENSER SERVICE AND
MAINTENANCE
Refer to manual provided with the Post–Mix
Dispenser for service and maintenance instructions.
BEVERAGE CONTROL PANEL
ASSEMBLY SERVICE AND
MAINTENANCE
CARBONATOR ASSEMBLY SERVICE AND
MAINTENANCE
WARNING: The carbonator water pump
water inlet strainer screen and liquid
double check valve must be inspected and ser-
vice at least once a year under normal circum-
stances, and after any disruptions (plumbing
work, earthquake, etc.) to the water supply sys-
tem that might cause turbulent (erratic) flow of
water through the system. A carbonator water
pump with no screen or a defective screen in
strainer would allow foreign particles to foul liq-
uid double check valve. CO
2
gas could then ba
ck flow into water system and create a health
hazard in the water system
Refer to manual provided with carbonator assembly
for service and maintenance instructions.
ADJUSTING PRIMARY CO
2
REGULATORS
(see Figure 7).
System Connected to Bulk CO
2
Supply
Adjust primary CO
2
regulator on bulk CO
2
supply tank
to 105–PSI (7.24 Bars)
System Connected to Two–Fifty Pound CO
2
Cylinders
Adjust two primary CO
2
regulators to 105–PSI (7.24
Bars)
ADJUSTING SECONDARY CO
2
REGULATORS
Sugar–Base Syrup Tanks CO
2
Regulator
Adjust sugar–base syrup tanks CO
2
regulator with
100–PSI (6.9 Bars) gauge on secondary CO
2
regulator assembly to 60–PSI (4.14 Bars).
Diet–Syrup Tank CO
2
Regulator.
Adjust diet–syrup tank CO
2
regulator with 30–PSI
(2.07 Bars) gauge on secondary CO
2
regulator
assembly to 12–PSI (.83 Bars).
CHECKING PLAIN WATER SYSTEM SURGE TANK
AIR, CO
2
OR NITROGEN GAS PRESSURE (see
applicable Figure 3, 4, 5, or 6).
NOTE: The plain water surge tank must be
completely drained before proceeding to check
and if necessary, pressurize the tank with the
proper amount of ‘‘commercially dry air, CO
2
, or
nitrogen gas pressure. Proceed as follows:
1. Unplug carbonator(s) and if applicable, the
optional Water Pressure Booster system power
cords from electrical outlets
2. Close Beverage Control Panel Assembly main
water inlet supply line shutoff valve.
3. Close plain water outlet shutoff valve Post–Mix
Dispenser plain water line is connected to.
4. Disconnect Post–Mix Dispenser plain water line
from shutoff valve.
5. Place bucket under shutoff valve. Open shutoff
valve and allow water to be purged from surge
tank. DO NOT CLOSE VALVE AT THIS TIME.
6. Note: service valve on bottom of the water
system surge tank. The surge tank must be
pressurized to 12
±
2–PSI (.83
±
.14 Bars) with
commercially dry air, CO
2
, or nitrogen gas
pressure. Check and make sure surge tank is
properly pressurized.
7. Close Post–Mix Dispenser plain water outlet
shutoff valve.
8. Open Beverage Control Panel Assembly main
water inlet supply line shutoff valve.
9. Plug the carbonator(s) and if applicable, the
optional Water Pressure Booster system power
cords into electrical outlet.
10. Place bucket under Post–Mix Dispenser plain
water outlet shutoff valve. Open shutoff valve
until a good stream of water flows from valve,
the close valve.
11. Reconnect Post–Mix Dispenser water line to
shutoff valve.
SERVICING OPTIONAL WATER PRESSURE
BOOSTER SYSTEM
(see applicable Figure 3, 4, 5, or 6)
Servicing Water Pump Water Inlet Strainer Screen
1. Unplug carbonator(s) and the Water Pressure
Booster system power cords from electrical
outlets.
