Manitowoc Ice QF0800 Electrical System, Section, Wiring Diagram Sequence of OperationL1, QF400

Electrical System Section 6

Wiring Diagram Sequence of

OperationL1

QF400

Initial Start-Up or Start-Up After Automatic Shut-Off

1A. WATER FLUSH

Immediately after placing the toggle switch in “ICE”, the dump valve solenoid, and gearbox are energized. After 45 seconds the dump valve de- energizes.

GROUND							L2 (N)
(21)
	RELAY
	K2
		RELAY		HIGH	CONTACTOR
				PRESSURE
		K1	(90)	CUT-OUT	(95)	COIL	(65)
	10 AMP					GEARMOTOR
(25)	FUSE
			(46)				(43)
		RELAY		(47)			(48)
RELAY K4
		K3
WATER FLOAT					GEARMOTOR
	VALVE COIL
		(56)		RUN CAPACITOR
(52)

(22)(55)

(51)	FAN MOTOR
	(AIR-COOLED ONLY)

(10)

DUMP VALVE

L1 T1

COIL

(41)(11)

CONTACTOR

CONTACTS

(14)

RUNSTART

(44)

SV3033

		1A. Water Flush (45 Seconds)
Toggle Switch			ICE
Bin Level Probe			Open (No Ice Contact)
Control Board Relays
#1	Contactor Coil		Open / OFF
	Compressor		OFF
	Condenser Fan Motor		OFF
#2	Dump Valve		ON
#3	Gear Motor		ON
#4	Water Float Valve Solenoid Coil		OFF

6-4 Revised 8/2003 Part No. 80-1214-3