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Installation Instructions
Water and Drain Requirements
POTABLE WATER REQUIREMENTS
Follow these guidelines to install water inlet lines:
•
Do not connect the ice machine to a hot water supply.
Be sure all hot water restrictors installed for other
equipment are working. (Check valves on sink faucets,
dishwashers, etc.)
•
If water pressure exceeds the maximum of 80 psig
(552 kPA) recommended pressure, obtain a water
pressure regulator from your Manitowoc distributor.
•
Install a water shut-off valve and union for both the ice
making and condenser water lines.
•
Insulate water inlet lines to prevent condensation.
•
Plumbing must conform to local codes.
,
Do not apply heat to water valve inlet fitting or over-
tighten. This will damage plastic water inlet connection.
DRAIN CONNECTIONS
Follow these guidelines when installing drain lines to
prevent drain water from flowing back into the ice machine
and storage bin:
•
Drain lines must have a 1.5 inch drop per 5 feet of run
(2.5 cm per meter), and must not create traps.
•
The floor drain must be large enough to accommodate
drainage from all drains.
•
Run separate bin and water-cooled condenser drain
lines. Insulate them to prevent condensation.
•
Vent the bin and ice machine drain to the atmosphere.
The ice machine drain requires an 18" (46 cm) vent. Do
not vent the condenser drain on water-cooled models.
•
Drains must have a union or other suitable means to
allow in-place disconnection from the ice machine
when servicing is required.
10
Caution
COOLING TOWER APPLICATIONS
A water cooling tower installation does not require
modification of the ice machine. The water regulator valve
for the condenser continues to control the refrigeration
discharge pressure.
It is necessary to know the amount of heat rejection, and
pressure drop through the condenser and water valves
(inlet and outlet) when using a cooling tower on an ice
machine.
•
Water entering the condenser must not be lower than
37°F (3°C) or exceed 90°F (32°C).
•
Water flow through the condenser must not exceed 5
gal. (19 L) per minute.
•
Allow for a pressure drop of 7 psi (48 kPa) between the
condenser water inlet and the outlet of the ice machine.
•
Water exiting the condenser must not exceed 110°F
(43°C).
ICE MACHINE WATER USAGE
Series
Potable Water
Ice Machine
Gal/100Lbs Ice
RF0244 - RF0266
RFS0300 - RNS0308
RF0388
RF0399
RNS0600
RFS0650
RF0644 - RNS1000
RFS1200
RN1200
RFS1279R
RF2300 - RFS2300
Part Number 000007644 Rev 01 12/16
Section 2
Condenser
Gal/100Lbs Ice
11.8
—
12.0
—
12.4
—
12.5
—
12.0
109
12.0
73
12.0
—
12.0
118
13.2
109
12.0
—
12.0
138
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