Manitowoc Ice QF0400, QF2300, QF0800, QC0700 Section, Electrical System, 6-21, RFC2085 Freeze Cycle

Models: QF2200 QF0400 QC0700 QF0800 QF2300

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RFC2085

Section 6

Electrical System

 

 

RFC2085

Freeze Cycle

2. FREEZE

Refrigerant pressure exceeds the low pressure control setpoint. The contactor coil energizes and the contacts close. The compressor and condenser fan motor energize and remain on throughout the entire freeze cycle.

L1

GROUND

COMPRESSOR

L2

 

 

CRANKCASE

 

(94)

HEATER

(95)

(96)

 

(74)

 

 

 

LOW PRESSURE

CONTACTOR

HIGH PRESSURE

COIL

CUT-OUT

CUT-OUT

 

CONTACTOR

FAN MOTOR

CONTACTOR

CONTACTS

CONTACTS

 

RUN

 

 

CAPACITOR

 

 

 

 

(49)

 

(50)

 

 

 

 

 

 

COMPRESSOR

 

 

RUN

 

 

 

CAPACITOR

 

C

S

(47)

 

 

 

 

 

 

(46)

 

R

 

 

 

(45)

OVERLOAD

 

 

 

 

(48)

 

 

 

(44)

 

 

 

 

 

 

 

5

2

1

 

(43)

 

RELAY

START

 

 

CAPACITOR

SV3042

2. Freeze (Until Ice Contacts Bin Level Probe for 30 Continuous Seconds)

High Pressure Control

Low Pressure Control

Contactor Coil

Compressor

Condenser Fan Motor

CLOSED

CLOSED

CLOSED / ON

ON

ON

Part No. 80-1214-3

Revised 8/2003

6-21

 

 

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Manitowoc Ice QF0400, QF2300, QF0800, QC0700, QF2200 service manual Section, Electrical System, 6-21, RFC2085 Freeze Cycle