Filter
Top Products
21 300614000
8. Wipe each part with clean lint-free cloth. Inspect each part, especially the ball, for burrs, nicks, corrosion,
deterioration, and other damage. Discard ball seat and any damaged or suspicious parts and replace with
new parts during reassemble.
9. Reassemble check valves as shown in Figure 6. ALWAYS install new ball seat (QUAD RING) (P/N
312418-000.
NOTE: Make sure when assembling check valves together, check valve female end with white tapered
gasket inside, is on inlet side of double liquid check valve assembly.
10. Assemble check valves together. DO NOT OVERTIGHTEN.
11. Install double liquid check valve assembly in plain water line connected between plain water cooling coil
and carbonated water tank.
12. Repeat preceding steps 6 through 11 to service other double liquid check valve in other plain water line
connected between plain water cooling coil and carbonated water tank.
13. Turn carbonator CO
2
regulator adjusting screw to the right (clockwise) until its gage indicates pressure
setting observed in step 3 preceding.
14. Open shutoff valve in plain water inlet supply line.
15. Restore electrical power to Cooling Unit at disconnect switch.
16. Dispense carbonated water at dispensing station and allow carbonator to cycle on and off. Check for water
leaks and repair if evident.
17. Disconnect electrical power from Cooling Unit at disconnect switch.
18. Install Unit top cover and secure with two screws.
19. Restore electrical power to Cooling Unit at disconnect switch.
LUBRICATION
The carbonator water pump and the carbonated water circulating pump motor bearings must be oiled
periodically, refer to oiling instructions on the motors. DO NOT OVER OIL.
ADJUSTMENTS
NOTE: To readjust CO
2
regulator to a lower setting loosen adjusting screw lock nut, then turn screw to
the left (counterclockwise) until pressure gage reads 5-psi lower than new setting will be. Turn
adjusting screw to the right (clockwise) until gage registers new setting, then tighten lock nut.
PRIMARY CO
2
REGULATOR
(see Figure 2).
Adjust primary CO
2
regulator on CO
2
cylinder to a minimum nominal setting of 120-psi or 24-psi higher than
highest setting required by the secondary CO
2
regulators. Loosen CO
2
regulator adjusting screw locknut. Turn
adjusting screw to the right (clockwise) until regulator gage registers nominal 120-psi, then tighten adjusting
screw locknut.
SECONDARY CO
2
REGULATORS
(see Figure 2).
Carbonator Secondary CO
2
Regulator.
Adjust carbonator secondary CO
2
regulator to a nominal 90-psi. Loosen CO
2
regulator adjusting screw locknut.
Turn adjusting screw to the right (clockwise) until regulator gage registers nominal 90-psi, then tighten adjusting
screw locknut. CO
2
PRESSURE TO CARBONATORS MUST NOT EXCEED 125-PSIG.