Water Service/Drains; Water Supply; Water Inlet Lines; Drain Connections - Manitowoc NEO UD0140A Installation, Operation And Maintenance Manual

Section 2

Water Service/Drains

WATER SUPPLY

Local water conditions may require treatment of the water
to inhibit scale formation, filter sediment, remove chlorine,
and improve taste and clarity.

WATER INLET LINES

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 (80 psig-
551.5 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.
WATER SUPPLY & DRAIN LINE SIZING CONNECTIONS
Location Water Temperature
Ice Making Water 40°F (4°C) Min.
Inlet 90°F (32°C) Max.
Condenser Water 40°F (4°C) Min.
Inlet 90°F (32°C) Max.
Condenser Water
Drain
Bin Drain
Part Number: 04002909 Rev02 4/16
Water Pressure
20 psi (137.9 kPa) Min.
80 psi (551.5 kPa) Max.
20 psi (137.9 kPa) Min.
150 psi (1034.2 kPa) Max
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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 ice machine drain. Do not vent the condenser
drain on water-cooled models.

COOLING TOWER APPLICATIONS

(Water-Cooled Models)
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
the 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 exceed 90°F
(32°C).
• Water flow through the condenser must not exceed 5
gallons (19 liters) 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 Fitting
3/8 Female Pipe Thread
3/8 Female Pipe Thread
U310 Only
1/2 Female Pipe Thread
1/2 Female Pipe Thread
1/2 Female Pipe Thread
Installation
Tubing Size Up To The Ice Machine
Fitting
3/8 (9.5 mm)
minimum inside diameter
3/8 (9.5 mm)
minimum inside diameter
U310 Only
1/2 (12.7 mm)
minimum inside diameter
1/2 (12.7 mm)
minimum inside diameter
1/2 (12.7 mm)
minimum inside diameter
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