6-15

Section 6

Electrical System

 

 

Automatic Shut-Off

L1

 

An 8 minute lockout starts when the compressor de-energizes. When the ice drops away from the bin level probe the ice machine will begin an initial start-up cycle, provided the “8 minute lock-out” has expired.

8 Minute Lock-out

The bin level light will flash until the 8 minute lock-out expires.

After the 8 minute lock-out expires the bin level light will de-energize.

The 8 minute lock-out time can be overridden by moving the ON/OFF/ ICE toggle switch from ICE to OFF then back to ICE.

L2 (N)

GROUND

 

 

 

 

 

 

 

 

 

 

 

(21)

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

K2

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

HIGH

CONTACTOR

 

 

 

 

 

PRESSURE

 

 

 

 

K1

(90)

CUT-OUT

(95)

COIL

(65)

C4

 

 

 

 

 

 

 

 

 

 

 

POTENTIAL

 

10 AMP

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

 

 

 

 

GEARMOTOR

 

(25)

FUSE

 

 

 

 

 

 

 

 

 

 

 

(46)

 

 

(21)

 

(43)

RUN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RELAY

 

 

 

(22)

 

 

CAPACITOR

 

RELAY K4

 

 

 

 

 

 

 

K3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WATER FLOAT

 

 

 

 

 

 

 

 

 

VALVE COIL

 

 

 

 

 

 

(52)

 

 

 

 

 

 

 

(56)

 

 

 

 

 

 

 

 

 

 

 

 

C4

(22)

 

 

 

 

 

 

 

 

 

 

POTENTIAL

 

 

 

 

 

 

 

 

 

 

 

RELAY

(51)

 

 

 

 

(55)

 

 

 

 

 

 

 

 

 

 

 

 

FAN MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

 

DUMP VALVE COIL

(AIR-COOLED ONLY)

CONTACTOR

 

 

 

 

 

 

 

 

 

 

FAN CYCLE

 

 

 

 

 

COIL

 

 

 

 

 

 

 

 

 

 

 

 

CONTROL

 

RUN CAPACITOR

 

 

 

 

 

 

 

 

 

 

(41)

 

L1

T1

 

 

 

 

 

 

 

 

 

 

 

 

 

C

COMPRESSOR

 

 

 

 

 

 

 

 

 

C4

 

 

CONTACTOR

 

OVERLOAD

 

 

 

 

 

R

(45)

POTENTIAL

 

 

CONTACTS

 

 

 

S

 

 

(49)

C5

C2

 

 

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(61)

C4

 

 

 

 

 

 

 

C1

RUN

 

 

POTENTIAL

 

 

 

 

 

 

(31)

CAPACITOR

(62)

RELAY

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

START

 

 

SV3128

 

 

 

 

 

 

 

CAPACITOR

 

 

 

 

 

 

 

 

 

 

 

Automatic Shut-Off(Until Ice No Longer Contacts Bin Level Probe)

 

 

Toggle Switch

ICE

 

 

Bin Level Probe

Closed (Ice Contacting Probe)

 

 

Control Board Relays

 

 

 

 

#1

Contactor Coil

Open / OFF

 

 

 

 

Compressor

OFF

 

 

 

 

Condenser Fan Motor

OFF

 

 

 

#2

Dump Valve

OFF

 

 

 

#3

Gear Motor

OFF

 

 

 

#4

Water Float Valve Solenoid Coil

OFF

 

 

 

Part No. 80-1214-3

Revised 8/2003

6-15

 

 

Page 77
Image 77
Manitowoc Ice QC0700, QF2300, QF0800, QF0400, QF2200 service manual Section, Electrical System, 6-15, Automatic Shut-Off