User Manual - Page 164

For IRT1900N263E.

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164 Part Number: 000015430 Rev 02 5/20
FAN CYCLE CONTROL
FUNCTION
Cycles the fan motor on and off to maintain proper
operating discharge pressure.
The fan cycle control closes on an increase, and opens on a
decrease in discharge pressure.
SPECIFICATIONS
Specifications
Model Cut-In (Close) Cut-Out (Open)
IT0300/IT0420/IT0500
IT0620/IT0750/IT0900
IT1200/IT1500/IT1900
335 psig ±5
(2310 kPa ±34)
275 psig ±5
(1896 kPa ±34)
IF0300/IF0600/IF0900
250 psig ±5
(1723 kPa ±34)
200 psig ±5
(1379 kPa ±34)
CHECK PROCEDURE
1. Verify fan motor windings are not open or grounded,
and fan spins freely.
2. Connect manifold gauge to ice machine.
3. Hook voltmeter in parallel across the fan cycle control,
leaving wires attached.
4. Refer to chart below.
FCC Set-point:
Reading
Should Be:
Fan
Should Be:
Above Cut-In 0 Volts Running
Below Cut-Out Line Voltage Off
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