Fan Cycle Control; U0240/Uf0240/U0310/Uf0310 - Welbilt Manitowoc NEO UDE0065A Technician's Handbook

FAN CYCLE CONTROL

UDE0080/U0140/UF0140/U0190/UF0190/U0240/
UF0240/U0310/UF0310
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
Model
UDE0080
U0140
U0190/UF0190
U0240
U0310
Check Procedure
Disconnect electrical power to the ice machine at the
electrical service disconnect.
Verify fan motor windings are not open or grounded, and
fan spins freely.
Connect manifold gauge to ice machine.
Hook voltmeter in parallel across the fan cycle control,
leaving wires attached.
Reconnect electrical power to the ice machine and press
the power button to ON.
Wait until water flows over the evaporator then refer to
chart below.
System Pressure:
Above cut-in
Below cut-out
198
Cut-In (Close)
145 psig ±5
250 psig ±5
275 psig ±5
Reading Should Be:
0 volts
Line voltage
Part Number 000014797 Rev02 05/19
Cut-Out (Open)
110 psig ±5
200 psig ±5
225 psig ±5
Fan Should Be:
Running
Off