Section, Electrical System, 6-33, RFC2385

Section 6	Electrical System

RFC2385

Automatic Shut-Off

When the refrigerant pressure is low enough to open the low-pressure switch, the contactor coil is de- energized and the compressor and condenser fan motor stop.

GROUND	COMPRESSOR	L2
	CRANKCASE
(94)	HEATER	(95)
(94)		(95)
C1		C2
(96)	(85)	(74)
		(74)
		CONTACTOR
HIGH PRESSURE	LOW PRESSURE	COIL
CUT-OUT	CUT-OUT
CONTACTOR		CONTACTOR
CONTACTS	FAN MOTOR	CONTACTS

RUN

CAPACITOR

(50)

			(49)		RUN
	COMPRESSOR				RUN
	COMPRESSOR		(47)		CAPACITOR
	C	S	(47)
				(46)
	R				(45)
OVERLOAD	R
OVERLOAD	(48)				(44)
	(48)				(44)
			5	2	1
	(43)		RELAY		START
	(43)		RELAY		CAPACITOR

SV2121

3. Automatic Shut-Off (45 Seconds)

High Pressure Control

Low Pressure Control

Contactor Coil

Compressor

Condenser Fan Motor

CLOSED

OPEN

OPEN / OFF

OFF

Part No. 80-1214-3	Revised 8/2003	6-33
	Revised 8/2003

Page 95

Image 95

Manitowoc Ice QF2300, QF0800, QC0700, QF0400, QF2200 Section, Electrical System, 6-33, RFC2385, Automatic Shut-Off

Contents

Flake / Chiplet Model Ice Machines Flake Models QF0400/QF0800 QF2200/QF2300Chiplet Models QC0700 Service Manual PERSONAL INJURY POTENTIAL Safety NoticesProcedural Notices Read These Before Proceeding Manitowoc Cleaner and Sanitizer Table of ContentsSection Installation Instructions Accessories Preventative Maintenance Cleaning Procedure Table of Contents continuedSection Maintenance Exterior Cleaning SafeGuard Indicator Lights Table of Contents continued SectionSection Troubleshooting Reset Procedure 6-46 ICE/OFF/CLEAN Toggle SwitchCompressor Electrical Diagnostics Section Refrigeration System Table of Contents continued Revised 8/2003 MANITOWOC CLEANER AND SANITIZER Section General InformationHow to Read a Model Number Accessories Model/Serial Number Location General InformationSection Model/Serial Number Location PARTS Owner Warranty Registration CardWarranty Coverage GENERAL THIS PAGE INTENTIONALLY LEFT BLANK QC700/QF800 AIR COOLED ICE MACHINE Section Installation InstructionsIce Machine Dimensions QF400 AIR COOLED ICE MACHINE Installation Instructions Location of Remote Condensing Unit Location of Ice MachineIce Machine Head Section Clearance Requirements Ice Machine Heat of Rejection Air Baffle Leveling the Ice Storage BinCondenser Air Baffle QC700/QF800 Air-CooledIce Machines Only MINIMUM CIRCUIT AMPACITY Electrical ServiceVOLTAGE FUSE/CIRCUIT BREAKER Remote Condensing Unit Electrical RequirementsFor United Kingdom Only Ice Machine Head Section 230/1/50 QF2200 ICE MACHINE HEAD SECTION 115/60/1QF2300 ICE MACHINE HEAD SECTION 115/60/1 RFC2085 REMOTE CONDENSING UNIT 208-230/1/60 Remote Electrical Wiring ConnectionsRFC2385 REMOTE CONDENSING UNIT 208-230/1/60 POTABLE WATER INLET LINES Ice Machine Head Section Water Supply and DrainsCooling Tower Applications Water-CooledModels POTABLE WATER SUPPLY WATER SUPPLY AND DRAIN LINE SIZING/CONNECTIONS Typical Water Supply Drain Installation2-10 USAGE WITH NON-MANITOWOC CONDENSING UNITS Refrigeration System Installation2-11 QF2200/RFC2085 AND QF2300/RFC2385 ONLY Unit Locations Are Within Guidelines Refrigeration Line Set Installation2-12 Step 1 Verify Ice Machine and Remote Condensing Manitowoc S-TrapKit Service Loop2-13 C. SUCTION LINE OIL TRAPS 2-14 Step 4 Connecting the line set 2-15 Step 7 Leak Check The Refrigeration System Open Receiver Service Valve2-16 Torque Value’s Suction Shut Off Valve Insulation 2-17 2-18 QF400 Section Ice Machine OperationComponent Identification ICE MACHINE HEAD SECTION QC700/QF800 RFC2385 Remote Condensing Unit Ice Machine OperationSection QF2300 WATER LEVEL CHECK Operational ChecksGENERAL EXTERIOR CLEANING Interior Cleaning and SanitizingCleaning/Sanitizing Procedure Heavily Scaled Cleaning Procedure Straighten Bent Condenser Fins CLEANING THE CONDENSERAir-CooledCondenser Self-Contained Air-CooledFilter MANITOWOC’S CLEANING TECHNOLOGY PREVENTATIVE MAINTENANCE CLEANING PROCEDURE QF400 CLEANING/SANITIZING PROCEDURE QC700/QF800/QF2300 CLEANING/SANITIZING PROCEDURE QF400 only 3-10part number 3-11 REMOVAL OF PARTS FOR CLEANING/SANITIZING Water Reservoir Cover Removal 3-12Water Level Probe Removal QC700/QF800 Float Valve Removal 3-13QF2300 Shown Ice Diverter Removal 3-14Water Reservoir Removal Ice Chute Removal 3-15 Cabinet Removal 3-16Bin Door Removal Water Dump Valve Dump Valve Disassembly3-17 Pry Open the Water Regulating Valve Removal from Service/Winterization3-18 WATER COOLED CONDENSING UNIT INITIAL START-UP1A. Flush Section Ice Machine Sequence of OperationQF400/QC700/QF800 PRIOR TO START-UP Remote Condensing Unit 3. Automatic Shut-Off Ice Machine Sequence of OperationQF2200 Remote Condensing Unit 2. Freeze QF2300 THIS PAGE INTENTIONALLY LEFT BLANK Checklist Section Troubleshooting SAFEGUARD INDICATOR LIGHTS TroubleshootingSafeguard Feature RESET PROCEDURE No Water Checklist TroubleshootingAnalyzing Why SafeGuards May Stop the Ice Machine SAFEGUARD MODES No Water Gear Motor Speed Gear Motor Speed Checklist Temperature is Too High or Low QF400/QC700/QF800 Temperature Sensor Checklist QF400/QC700/QF800 Temperature is Too High or Low QF2200 Only Temperature Sensor Checklist QF2200 Gear Box Removal QF2200/QF2300 Evaporator Removal 5-10 Energized Parts Charts Section Electrical System Electrical System QF2300 Wiring Diagram Sequence of OperationL1 1B. WATER FILL Freeze Cycle Automatic Shut-Off 3B. DRAIN EVAPORATOR Automatic Shut-Off 6-10 Wiring Diagram Sequence of L1 Operation 6-11 6-12 6-13 6-14 6-15 6-16 RFC2085 Initial Start-Up Remote Condensing Unit 6-17 Initial Start-Up 6-18 RFC2085 Initial Start-Up 6-19 6-20 RFC2085 Freeze Cycle 6-21 QF2200 Automatic Shut-Off 6-22 RFC2085 Automatic Shut-Off 6-23 6-24 8 Minute Lockout 6-25 6-26 Wiring Diagram Sequence of Operation RFC2385 6-27 6-28 6-29 6-30 6-31 6-32 6-33 QF2300 Automatic Shut-Off 6-34 6-35 6-36 Wiring DiagramsWIRING DIAGRAM LEGEND 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-37ICE MACHINE HEAD SECTION QF400 QC700/QF800 115V/60Hz/1Ph - 230V/50Hz/1Ph 6-38 115/60/1 - 230/50/1 6-39COMPRESSOR SECTION QC700/QF800 ICE MACHINE HEAD SECTION QF2200 6-40 RFC2085 230V/60HZ/1PH - 230/50/1 6-41 RFC2085 208-230V/60HZ/3PH 6-42 ICE MACHINE HEAD SECTION Diagram Shown During Freeze Cycle6-43 RFC2385 230V/60HZ/1PH - 230/50/1 6-44 RFC2385 208-230V/60HZ/3PH 6-45 6-46 Control Board Check Procedure Component Specifications and DiagnosticsICE/OFF/CLEAN TOGGLE SWITCH Function Specifications 6-48 Failure Modes 6-49MOTOR SPEED SENSOR Function WATER LEVEL PROBES Function 6-50 6-51 TEMPERATURE/RESISTANCE CHART 6-52TEMPERATURE SENSOR Function MAIN FUSE Function 6-53CONTROL BOARD RELAYS Function WATER LEVEL CHECK 6-54WATER FLOAT VALVE Function Function 6-55HIGH PRESSURE CONTROL HPCO Function FAN CYCLE CONTROL Function 6-56 Check Motor Windings to Ground COMPRESSOR ELECTRICAL DIAGNOSTICS6-57 Check Resistance Ohm Values Relay Operation Check 6-58Diagnosing Start Components QF400/QC700/QF800/QF2200/QF2300 Diagnosing An Ice Machine That Will Not RunDiagnosing A Condensing Unit That Will Not Run 6-59 6-60 SV3082 Section Refrigeration SystemTubing Schematic Condensing Unit Refrigeration SystemQF2200/RFC2085 QF2300/RFC2385 Refrigeration System Diagnostics Ice Production Check BEFORE BEGINNING SERVICEICE PRODUCTION/QUALITY CHECK Quality Check SAFEGUARDS INSTALLATION/VISUAL INSPECTION CHECKLISTWATER SYSTEM CHECKLIST Discharge Pressure Low Checklist ProcedureDischarge Pressure High Checklist ANALYZING SUCTION PRESSURE Suction Pressure High ChecklistSuction Pressure Low Checklist WATER REGULATING VALVE WATER-COOLEDMODELS ONLY EQUALIZATION VALVE QF2300 GeneralNormal Operation Analysis Air-CooledCondensing Units 7-10HEADMASTER CONTROL VALVE Function FREEZE CYCLE OPERATION Air-CooledIce Machines Operating Pressures 7-11QF400 SELF-CONTAINEDAIR COOLED 24 Hour Ice Production QC700 SELF-CONTAINEDWATER COOLED 7-12QC700 SELF-CONTAINEDAIR COOLED QF800 SELF-CONTAINEDWATER COOLED 7-13QF800 SELF-CONTAINEDAIR COOLED QF2300/RFC2385 REMOTE AIR COOLED 7-14QF2200/RFC2085 REMOTE AIR COOLED Recovery/Evacuation Connections Refrigerant Recovery/Evacuation and RechargingREFRIGERANT RECOVERY/EVACUATION Normal Self-ContainedModel Procedures Connections Recovery/Evacuation QF2200/QF23007-16 Charging Connections Self-ContainedModel Charging Procedures7-17 7-18 Remote Charging Procedures QF2200/QF2300 Determining Severity Of Contamination SYSTEM CONTAMINATION CLEAN-UP General7-19 7-20 Mild System Contamination Cleanup ProcedureSevere System Contamination Cleanup Procedure 7-21 SV1406 Using Pinch-OffTool7-22 Remote Models SUCTION CLEAN-UPFILTER/DRIER QF400/QC700/QF8007-23 FILTER-DRIERS Liquid Line Filter Drier Recycle REFRIGERANT DEFINITIONS RecoverNew Product Specifications 7-24 Revised 8/2003 Attend A Manitowoc Factory Service School 1.New Refrigerant 3.Recovered or Recycled Refrigerant7-25 REFRIGERANT RE-USEPOLICY 7-26

Manitowoc Ice QF2300, QF0800, QC0700 Section, Electrical System, 6-33, RFC2385, Automatic Shut-Off

Models: QF2200 QF0400 QC0700 QF0800 QF2300

6-33