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6
Models RD30/RC25To the Installer
Step 6
Check all connections for leaks.
Step 7
Insulate all exposed suction line tubing and fittings.
Step 8
Set the pump down switch located in the condensing
unit. For indoor condensing unit application:
Set cut in at 30 PSIG (207 kPa).
Set cut out at 5 PSIG (34 kPa).
For outdoor condensing unit application:
Set cut in at 20 PSIG (138 kPa).
Set cut out at 0 PSIG (0 kPa).
Pump down pressure readings are to be taken at the
refrigeration line access fittings at the condensingunit.
Set Up Procedures
Standard Fill Module
Step 1
Connect the product supply line to the 1/4” barbed
fitting on the fill module. Adjust the fill system pressure
to deliver product to the hopper at 1.5 to 2.5 oz. (42.5
to 70.9 g) per second. (Approximately 15 to 20 PSIG
[103--138 kPa] for most products.)
Step 2
Lubricate, assemble, sanitize and prime the dispenser
as outlined in the Assembly section of this manual.
Step 3
Place the fill switch in the “ON” position. Allow the
product to fill the cylinder and the hopper until the mix
level float is satisfied.
Step 4
Place the power switch in the “AUTO” position.
Step 5
To observe the suction pressure, attach refrigeration
gauges to the suction access fitting in the dispenser.
Pressures should read approximately 32 psi. (221
kPa) for non--alcoholic application and 28 psi. (193
kPa) for alcoholic application.
Note: Connection to the condensing unit suction
access can give an improper reading.
Step 6
Allow the dispenser to run until the condensing unit
cycles of f. Verify the p roper pump down pressure
switch setting. See Step 8 of “Refrigeration
Connections” (page 6).
Note: Pump down pressure readings are to be taken
at the refrigeration line access fittings near the
condensing unit.
Step 7
If necessary, adjust viscosity to produce satisfactory
product. Adjustments are made by turning the
viscosity adjustment screw (located on the front panel)
clockwise for a thicker product or counterclockwise for
a thinner product.
Units Equipped With Post Mix Valve
Step 1
Connect syrup and water lines.
Note: Adjust thesyrup supplypressure to m aintain60
PSIG. Water pressure minimum 40 PSIG, maximum
100 PSIG, may require regulated water supply.
Step 2
T urn the “FILL” switch in the front of the RD30 to the
“ON” position.
Step 3
Press and hold the area on the front of the post mix
valve marked “PUSH” to prime the fill syst em. Priming
is required until the B.I.B. switch and the float switch
are both satisfied. Priming is complete when product
will flow without pressing the “PUSH” button.
Step 4
To adjust either the syrup or water flow rate, turn the
flow adjustment screw clockwise to increase flow , or
counterclockwise to decrease flow. Adjust the screws
until the desired brix is obtained. The flow rate should
be 1.5 to 2.5 oz. (43 fl. ml.) per second.
Note: Both syrup and water flow adjustment screws
are located inside the post mix valve cover. V iewed
from the front, the syrup adjustment screw is on the
right and water adjustment is on the left.