Manitowoc Indigo I0300 - Water and Drain Line Specifications; Air Gap Requirements; Cooling Tower Water-Cooled Models

16 Part Number: 000013325 Rev 01 4/16
Installation Section 2
Water Supply and Drain Line Sizing/
Connections

Caution
Do not apply heat to water inlet valve or water drain
fittings. Heating will damage the nonmetallic connector.
Do not over tighten fittings. Two turns after hand tight
is the maximum.
• Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, and
remove chlorine odor and taste.
• Connect ice making water inlet to potable water only.
• Do not connect to hot water supply.
• Install a water shut-off valve.
• Insulate water and drain lines to prevent condensation.
Location Water Temperature Water Pressure Ice Machine Fitting
Tubing Size up to Ice
Machine Fitting
Ice Making Water Inlet
4,4°C (40°F) Min.
32°C (90°F) Max.
140 kPa (20 psi) Min.
550 kPa (80 psi) Max.
3/8" Female Pipe Thread
10 mm (3/8") minimum
inside diameter
Ice Making Water Drain — — 1/2" Female Pipe Thread
13 mm (1/2") minimum
inside diameter
Condenser Water Inlet
4,4°C (40°F) Min.
32°C (90°F) Max.
140 kPa (20 psi) Min.
1030 kPa (150 psi) Max.
I0300 - I1000 = 3/8" Female Pipe Thread
I1106 - I1800 = 1/2" Female Pipe Thread
Condenser Water Drain — — 1/2" Female Pipe Thread
13 mm (1/2") minimum
inside diameter
Bin Drain — — 3/4" Female Pipe Thread
19 mm (3/4") minimum
inside diameter
Large Capacity Bin Drain 1" Female Pipe Thread
25 mm (1") minimum
inside diameter
Min. = Minimum, Max. = Maximum
Air Gap
A greater than 1-inch air gap is built into the ice machine
for back-flow prevention. This air gap exceeds NSF 12
requirements for back-flow prevention.
Cooling Tower Applications (Water-Cooled
Models)
A water cooling tower installation does not require
modification of the ice machine.
• Water pressure at the condenser cannot exceed
1034kPa (150 psig). A special order unit is available that
allows water pressure up to 2413 kPa (350 psig).
• Water entering the condenser must not exceed 32°C
(90°F).
• Water flow through the condenser must not exceed
19liters (5 gallons) per minute.
• Allow for a pressure drop of 50 kPa (7 psi) between the
condenser water inlet and the outlet of the ice machine.
• Water exiting the condenser must not exceed 43°C
(110°F).
Off
On / Off Mode
[ ]
!
This Air Gap is Greater Than 1”