Water Supply And Drain Line Sizing/Connections; Water-Cooled Condenser Water Pressure; Cooling Tower Applications (Water-Cooled Models) - Koolaire KD0250A Installation And Maintenance Manual

Installation Instructions

Water Supply and Drain Line Sizing/Connections

Location Water Temperature
35°F (2°C) Min.
Ice Making Water
Inlet 90°F (32°C) Max.
Ice Making Water
Drain
90°F (32°C) Max.
Condenser Water
Inlet
Condenser Water
Drain
Bin Drain
Large Capacity
Bin Drain

WATER-COOLED CONDENSER WATER PRESSURE

Water pressure at the condenser cannot exceed 150 psig
(1034 kPa) with the standard water-regulating valve.
Contact your distributor if your water pressure is greater
than 150 psig (1034 kPa). A special order condenser/water-
regulating valve is available that allows water pressure up to
350 psig (2413 kPa).
Important
The Commonwealth of Massachusetts requires that all
water-cooled models must be connected only to a
closed loop, cooling tower system.
10
Water Pressure
20 psi (140 kPa) Min.
80 psi (552 kPa) Max.
– –
Standard
20 psi (140 kPa) Min.
150 psi (1034 kPa) Max.
High Pressure Option
20 psi (140 kPa) Min.
350 psi (2410 kPa) Max.
– –
– –
– –
Ice Machine Fitting
3/8" (.95 cm) Female Pipe Thread
1/2" (1.27 cm) Female Pipe Thread
3/8" Female Pipe Thread
1/2" (1.27 cm) Female Pipe Thread
3/4" (1.91 cm) Female Pipe Thread
1" (2.54 cm) Male Pipe Thread
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 (50 kPa) between the
condenser water inlet and the outlet of the ice machine.
• Water exiting the condenser must not exceed
110°F (43°C).
Section 2
Tubing Size Up to Ice Machine
Fitting
3/8" (.95 cm) min. inside diameter
1/2" (1.27 cm) min. inside
diameter
1/2" (1.27 cm) min. inside
diameter
3/4" (1.91 cm) min. inside
diameter
1" (2.54 cm) min. inside diameter
Part Number 000012545 4/14