Electrical System, Section, 6-34 | Manitowoc Ice QF0800, QF2300

Electrical System	Section 6

QF2300

Automatic Shut-Off

3B. WATER DRAIN

To allow water to drain from the evaporator, the dump valve energizes for 90 seconds, then de-energizes.

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 lockout” has expired.

L1	GROUND		C1	C2	L2
L1

				LIQUID LINE
			(54)	SOLENOID
	RELAY		(54)	(53)
	RELAY	(91)
	K2	(91)		EQUALIZATION
			(58)	SOLENOID	(57)
		RELAY	(58)		(57)
		RELAY
	(25)	K1
	(25)
	7 AMP		CENTRIFUGAL		(22)
	7 AMP			SWITCH	(22)
	FUSE		INTERNAL
		(65)	OVERLOAD	START
		(65)
		RELAY		RUN
	RELAY K4	RELAY
	RELAY K4	K3
		K3	GEARMOTOR
			GEARMOTOR
		WATER FLOAT
	(52)	VALVE	(56)
	(52)		(56)
	(22)
			(55)
	(51)

DUMP VALVE

		SV2112
		3B. Water Drain (90 Seconds)
Toggle Switch		ICE
Bin Level Probe		CLOSED ( Ice Contacting probe)
Control Board Relays
#1	Liquid Line Solenoid Valve	OFF
#2	Dump Valve	ON
#3	Gear Motor	OFF
#$	Water Float Valve Solenoid Coil	OFF

6-34	Revised 8/2003	Part No. 80-1214-3
	Revised 8/2003

Page 96

Image 96

Manitowoc Ice QF0800, QC0700, QF0400, QF2200 service manual Electrical System, Section, 6-34, QF2300 Automatic Shut-Off

Contents

Flake Models QF0400/QF0800 QF2200/QF2300 Chiplet Models QC0700Service Manual Flake / Chiplet Model Ice Machines Safety Notices Procedural NoticesRead These Before Proceeding PERSONAL INJURY POTENTIAL Table of Contents Section Installation InstructionsAccessories Manitowoc Cleaner and Sanitizer Table of Contents continued Section MaintenanceExterior Cleaning Preventative Maintenance Cleaning Procedure Table of Contents continued Section Section TroubleshootingReset Procedure SafeGuard Indicator Lights ICE/OFF/CLEAN Toggle Switch Compressor Electrical DiagnosticsSection Refrigeration System 6-46 Table of Contents continued Table of Contents continued Section General Information How to Read a Model NumberAccessories MANITOWOC CLEANER AND SANITIZER General Information SectionModel/Serial Number Location Model/Serial Number Location Owner Warranty Registration Card Warranty CoverageGENERAL PARTS THIS PAGE INTENTIONALLY LEFT BLANK Section Installation Instructions Ice Machine DimensionsQF400 AIR COOLED ICE MACHINE QC700/QF800 AIR COOLED ICE MACHINE Installation Instructions Location of Ice Machine Ice Machine Head Section Clearance RequirementsIce Machine Heat of Rejection Location of Remote Condensing Unit Leveling the Ice Storage Bin Condenser Air BaffleQC700/QF800 Air-CooledIce Machines Only Air Baffle Electrical Service VOLTAGEFUSE/CIRCUIT BREAKER MINIMUM CIRCUIT AMPACITY Electrical Requirements For United Kingdom OnlyIce Machine Head Section Remote Condensing Unit QF2200 ICE MACHINE HEAD SECTION 115/60/1 QF2300 ICE MACHINE HEAD SECTION115/60/1 230/1/50 Remote Electrical Wiring Connections RFC2385 REMOTE CONDENSING UNIT 208-230/1/60RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Ice Machine Head Section Water Supply and Drains Cooling Tower Applications Water-CooledModelsPOTABLE WATER SUPPLY POTABLE WATER INLET LINES Typical Water Supply Drain Installation 2-10WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Refrigeration System Installation 2-11QF2200/RFC2085 AND QF2300/RFC2385 ONLY USAGE WITH NON-MANITOWOC CONDENSING UNITS Refrigeration Line Set Installation 2-12Step 1 Verify Ice Machine and Remote Condensing Unit Locations Are Within Guidelines Service Loop 2-13C. SUCTION LINE OIL TRAPS Manitowoc S-TrapKit Step 4 Connecting the line set 2-14 2-15 Open Receiver Service Valve 2-16Torque Value’s Step 7 Leak Check The Refrigeration System 2-17 Suction Shut Off Valve Insulation 2-18 Section Ice Machine Operation Component IdentificationICE MACHINE HEAD SECTION QC700/QF800 QF400 Ice Machine Operation SectionQF2300 RFC2385 Remote Condensing Unit Operational Checks GENERALWATER LEVEL CHECK Interior Cleaning and Sanitizing Cleaning/Sanitizing ProcedureHeavily Scaled Cleaning Procedure EXTERIOR CLEANING CLEANING THE CONDENSER Air-CooledCondenserSelf-Contained Air-CooledFilter Straighten Bent Condenser Fins MANITOWOC’S CLEANING TECHNOLOGY PREVENTATIVE MAINTENANCE CLEANING PROCEDURE QF400 CLEANING/SANITIZING PROCEDURE QC700/QF800/QF2300 CLEANING/SANITIZING PROCEDURE QF400 3-10 part numberonly REMOVAL OF PARTS FOR CLEANING/SANITIZING 3-11 3-12 Water Level Probe RemovalQC700/QF800 Water Reservoir Cover Removal 3-13 QF2300 ShownFloat Valve Removal 3-14 Water Reservoir RemovalIce Diverter Removal 3-15 Ice Chute Removal 3-16 Bin Door RemovalCabinet Removal Dump Valve Disassembly 3-17Water Dump Valve Removal from Service/Winterization 3-18WATER COOLED CONDENSING UNIT Pry Open the Water Regulating Valve Section Ice Machine Sequence of Operation QF400/QC700/QF800PRIOR TO START-UP INITIAL START-UP1A. Flush Ice Machine Sequence of Operation QF2200Remote Condensing Unit 2. Freeze Remote Condensing Unit 3. Automatic Shut-Off QF2300 THIS PAGE INTENTIONALLY LEFT BLANK Section Troubleshooting Checklist Troubleshooting Safeguard FeatureRESET PROCEDURE SAFEGUARD INDICATOR LIGHTS Troubleshooting Analyzing Why SafeGuards May Stop the Ice MachineSAFEGUARD MODES No Water No Water Checklist Gear Motor Speed Checklist Gear Motor Speed Temperature Sensor Checklist QF400/QC700/QF800 Temperature is Too High or Low QF400/QC700/QF800 Temperature Sensor Checklist QF2200 Temperature is Too High or Low QF2200 Only Gear Box Removal QF2200/QF2300 Evaporator Removal 5-10 Section Electrical System Energized Parts Charts Electrical System Energized Parts Charts Wiring Diagram Sequence of OperationL1 1B. WATER FILL Freeze Cycle Automatic Shut-Off 3B. DRAIN EVAPORATOR Section Wiring Diagram Sequence of L1 Operation 6-10 6-11 6-12 6-13 6-14 6-15 6-16 6-17 RFC2085 Initial Start-Up Remote Condensing Unit 6-18 Initial Start-Up 6-19 RFC2085 Initial Start-Up 6-20 6-21 RFC2085 Freeze Cycle 6-22 QF2200 Automatic Shut-Off 6-23 RFC2085 Automatic Shut-Off 6-24 6-25 8 Minute Lockout Wiring Diagram Sequence of Operation 6-26 6-27 RFC2385 6-28 6-29 6-30 6-31 6-32 6-33 6-34 QF2300 Automatic Shut-Off 6-35 Wiring Diagrams WIRING DIAGRAM LEGEND6-36 6-37 ICE MACHINE HEAD SECTION QF400115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-39 COMPRESSOR SECTION QC700/QF800115/60/1 - 230/50/1 6-40 ICE MACHINE HEAD SECTION QF2200 6-41 RFC2085 230V/60HZ/1PH - 230/50/1 6-42 RFC2085 208-230V/60HZ/3PH Diagram Shown During Freeze Cycle 6-43ICE MACHINE HEAD SECTION 6-44 RFC2385 230V/60HZ/1PH - 230/50/1 6-45 RFC2385 208-230V/60HZ/3PH Control Board 6-46 Component Specifications and Diagnostics ICE/OFF/CLEAN TOGGLE SWITCH FunctionSpecifications Check Procedure 6-48 6-49 MOTOR SPEED SENSOR FunctionFailure Modes 6-50 WATER LEVEL PROBES Function 6-51 6-52 TEMPERATURE SENSOR FunctionTEMPERATURE/RESISTANCE CHART 6-53 CONTROL BOARD RELAYS FunctionMAIN FUSE Function 6-54 WATER FLOAT VALVE FunctionWATER LEVEL CHECK 6-55 HIGH PRESSURE CONTROL HPCO FunctionFunction 6-56 FAN CYCLE CONTROL Function COMPRESSOR ELECTRICAL DIAGNOSTICS 6-57Check Resistance Ohm Values Check Motor Windings to Ground 6-58 Diagnosing Start ComponentsRelay Operation Check Diagnosing An Ice Machine That Will Not Run Diagnosing A Condensing Unit That Will Not Run6-59 QF400/QC700/QF800/QF2200/QF2300 6-60 Section Refrigeration System Tubing SchematicSV3082 Refrigeration System QF2200/RFC2085Condensing Unit QF2300/RFC2385 Refrigeration System Diagnostics BEFORE BEGINNING SERVICE ICE PRODUCTION/QUALITY CHECK Quality CheckIce Production Check INSTALLATION/VISUAL INSPECTION CHECKLIST WATER SYSTEM CHECKLISTSAFEGUARDS Procedure Discharge Pressure High ChecklistDischarge Pressure Low Checklist Suction Pressure High Checklist Suction Pressure Low ChecklistANALYZING SUCTION PRESSURE EQUALIZATION VALVE QF2300 General Normal OperationAnalysis WATER REGULATING VALVE WATER-COOLEDMODELS ONLY 7-10 HEADMASTER CONTROL VALVE FunctionFREEZE CYCLE OPERATION Air-CooledIce Machines Air-CooledCondensing Units 7-11 QF400 SELF-CONTAINEDAIR COOLED24 Hour Ice Production Operating Pressures 7-12 QC700 SELF-CONTAINEDAIR COOLEDQC700 SELF-CONTAINEDWATER COOLED 7-13 QF800 SELF-CONTAINEDAIR COOLEDQF800 SELF-CONTAINEDWATER COOLED 7-14 QF2200/RFC2085 REMOTE AIR COOLEDQF2300/RFC2385 REMOTE AIR COOLED Refrigerant Recovery/Evacuation and Recharging REFRIGERANT RECOVERY/EVACUATIONNormal Self-ContainedModel Procedures Recovery/Evacuation Connections Recovery/Evacuation QF2200/QF2300 7-16Connections Self-ContainedModel Charging Procedures 7-17Charging Connections Remote Charging Procedures QF2200/QF2300 7-18 SYSTEM CONTAMINATION CLEAN-UP General 7-19Determining Severity Of Contamination Mild System Contamination Cleanup Procedure Severe System Contamination Cleanup Procedure7-20 7-21 Using Pinch-OffTool 7-22SV1406 SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF800 7-23FILTER-DRIERS Liquid Line Filter Drier Remote Models REFRIGERANT DEFINITIONS Recover New Product Specifications7-24 Recycle Revised 8/2003 Attend A Manitowoc Factory Service School 3.Recovered or Recycled Refrigerant 7-25REFRIGERANT RE-USEPOLICY 1.New Refrigerant 7-26

Manitowoc Ice QF0800, QC0700, QF0400 Electrical System, Section, 6-34, QF2300 Automatic Shut-Off

Models: QF2200 QF0400 QC0700 QF0800 QF2300

QF2300

6-34