Ultra Training Manual
24
Compressor
Electrtic Motor Type: The type of motor being used in the ULTRA-2 HP dispenser is known as CSR motor (Capacitive
Start & Run).
The CSR version uses a start and run capacitor with an external thermal protector. The start capacitor is in series
with the compressor motor start winding. A potential starting relay coil is wired across the start winding which can
sense change in voltage. The starting winding voltage will increase along with motor speed. When the voltage has
reached a point, the relay contacts will open, de-energizing the start winding capacitor.
Capacitor Ratings:
Start Capacitor: 243-292 MFD 165V 50/60HZ
Run Capacitor: 35 +/-5% MFD 425V 50/60HZ
Refrigerant Charge:
Type: R404A
Amount: 11 oz.
Design Pressure: High 430 & Low 80
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