U-Line ULN-29R, SP 18 ICE Maker Operating Cycles, Freeze Cycle Figure, Harvest-1 Cycle Figure

Section 3 - Service and Repair

ICE MAKER OPERATING CYCLES

Freeze Cycle (Figure 7)	•	Power to the compressor.
• Temperature control terminals 2 and 3 are closed.	•	Power to the condenser fan.

black

ON

OFF

black

black

SWITCH

FAN

ground

MOTOR

brown

WATER

white

VALVE

COMP.

OVER

START

black

LOAD

black

RELAY

blue

HOLD

C

SWITCH

LIMIT

SWITCH

NC

NO

WATER

yellow

C

FILL

NC

2

SWITCH

TEMP.

red

NO

C

CONTROL

3

1

BIN

SWITCH

black

ICE

orange

black

MAKER

orange

MOTOR

black

MOLD HEATER

black

UL183-4

orange

Figure 7. Freeze Cycle\

Harvest-1 Cycle (Figure 8

•Temperature control terminals 2 and 3 are open - 2 and 1 close.

•No power to the compressor or condenser fan.

•If bin arm is down, power goes through bin arm switch to the ice maker motor. If bin arm is up, the ice maker will not harvest.

					black
ON
OFF	black		black
SWITCH		FAN						ground
		MOTOR
					brown			WATER
								VALVE		white
		COMP.
		OVER
		START
black		LOAD		black
		RELAY
				blue				HOLD	C
LIMIT								SWITCH
SWITCH						NC			NO
			WATER			yellow
		C	FILL	NC		2
			SWITCH
						TEMP.
								red	NO	C
						CONTROL
					3		1		BIN
									SWITCH
		black		ICE	orange
black				MAKER
		orange		MOTOR
		black		MOLD HEATER	black
										orange	UL183-5
		Figure 8. Harvest-1 Cycle (Hold Switch in Normal Position)
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