14
Part Number 000016034 Rev 00 07/19
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 552 kPA
recommended pressure, obtain a water pressure
regulator.
• 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.
,
Caution
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 2.5 cm per meter drop 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 ice machine drain to the atmosphere. The ice
machine drain requires an 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.
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
3°C or exceed 32°C.
• Water flow through the condenser must not exceed 19 L
per minute.
• Allow for a pressure drop of 48 kPa between the
condenser water inlet and the outlet of the ice machine.
• Water exiting the condenser must not exceed 43°C.
ICE MACHINE WATER USAGE
Series
Ice Machine
Potable Water
liter/45 kg Ice
Condenser
liter/45 kg Ice
UF0200 - UN0200
44.66
—
RF0320 - RN0320
45.42
—
UF0388
46.94
—
UF0399
47.32
—
RN0620
45.42
412.60
RF0620
45.42
276.34
RN1100
45.42
495.89
RF1300
45.42
446.68
RF2500
45.42
522.38