1-6
TO THE INSTALLER
Models 345, 346, 349, 355
To the Installer
1
.
Figure 1-6
7. Set the secondary regulator on the CO
2
tank to
60 psi (4.1 bar) for the syrup tanks or the BIB pumps
Figure 1-7
8. Turn the cold water supply on.
9. 9.Check for CO
2
leaks. This can be done by closing
the valve on the top of the CO
2
tank. Watch the high
pressure gauge; it should hold pressure. If it does
not, there is a CO
2
leak. Use a soap solution to
locate and repair the leak.
10. For the Bag-in-Box syrup delivery system, connect
the two spare CO
2
lines from the secondary regulator
to each Gas In fitting on the pumps. Set secondary
regulator pressure to 60 psi (4.1 bar) depending on
the length of syrup line run to the unit.
Important!
Make sure the Bag-in-Box switch is
enabled.
11. The CO
2
regulator assembly (primary regulator)
inside the freezer should be set at 60 psi (4.1 bar).
The secondary regulator, located inside the freezer
just behind the primary regulator, can be adjusted
from 20 psi to 25 psi (1.38 bar to 1.72 bar). (The
factory recommendation is 20 psi [1.38 bar].)
Increasing the pressure from 20 psi (1.38 bar) will
increase the overrun. You should always stay within
the 20 psi to 25 psi (1.38 bar to 1.72 bar) range as
the gauge reflects the pressure in the hopper and
barrel. The setting will be determined by the desired
overrun and the syrup used.
12. The CO
2
low pressure switch requires at least
74 psi (5.1 bar) before the freezer will start. It is set to
cut out at 60 psi (4.1 bar) and in at 74 psi (5.1 bar).
13. The pressure relief valve on the hopper cover is set
to relieve at 30 psi (2.0 bar) in case of excess
pressure in the hopper.
14. There are check valves in the CO
2
, syrup, and water
lines to prevent any back flow of soda water, product,
or CO
2
.
15. The CO
2
solenoids which supply CO
2
to the hoppers
are wired to provide CO
2
in all control settings except
DEFROST and OFF.
18087
90 psi
18088
60 psi
