Manitowoc Ice QDUAL Service Manual

Manitowoc

Q Model

QuietQube

Ice Machines

Technician’s

Handbook

This manual is updated as new information and models are

released. Visit our website for the latest manual.

America’s #1 Selling Ice Machine

Part Number 80-0099-9 6/11

www.manitowocice.com

Safety Notices

Warning

Caution

Important

As you work on Manitowoc equipment, be sure to pay close attention to the safety notices in this handbook. Disregarding the notices may lead to serious injury and/or damage to the equipment.

Throughout this handbook, you will see the following types of safety notices:

Text in a Warning box alerts you to a potential personal injury situation. Be sure to read the Warning statement before proceeding, and work carefully.

Text in a Caution box alerts you to a situation in which you could damage the equipment. Be sure to read the Caution statement before proceeding, and work carefully.

Procedural Notices

As you work on Manitowoc equipment, be sure to read the procedural notices in this handbook. These notices supply helpful information which may assist you as you work.

Throughout this handbook, you will see the following types of procedural notices:

Text in an Important box provides you with information that may help you perform a procedure more efficiently. Disregarding this information will not cause damage or injury, but it may slow you down as you work.

NOTE: T ext set off as a Note provides you with simple,

Caution

Important

! Warning

We reserve the right to make product

improvements at any time. S pecifications and

design are subject to change without notice.

but useful, extra information about the procedure you are performing.

Read These Before Proceeding:

Proper installation, care and maintenance are essential for maximum performance and troublefree operation of your Manitowoc equipment. If you encounter problems not covered by this handbook, do not proceed, contact Manitowoc Foodservice Group. We will be happy to provide assistance.

Routine adjustments and maintenance procedures outlined in this handbook are not covered by the warranty.

PERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused, abused, neglected, damaged, or altered/modified from that of original manufactured specifications.

Table of Contents

Model Numbers

Model/Serial Number Location.............................. 2

Ice Machine Warranty Information

Owner Warranty Registration Card....................... 3

Warranty Coverage............ ... ................................ 4

General............................................................. 4

Parts................................................................. 4

Labor................................................................4

Exclusions ........................................................ 4

Authorized Warranty Service............................ 5

Service Calls..................................................... 5

Installation

Location of Ice Machine........................................ 6

Ice Machine Head Section 

Clearance Requirements ...................................... 6

Q0600C/Q0800C/Q1000C...............................6

SU1000/SerVend UC-300:............................... 6

Stacking Two Ice Machines on a 

Single Storage Bin ................................................7

Ice Deflector..........................................................7

Location of CVD

Condensing Unit Clearance Requirements...........8

Ice Machine Head Section Water 

Supply and Drains................................................. 9

Potable Water Supply.......................................9

Potable Water Inlet Lines................................. 9

Drain Connections..........................................10

Water cooled condenser water 

supply and drains................................................11

Condenser Water Supply ............................... 11

Water Cooled Condenser Lines .....................11

Condensing Unit Drain Connections .............. 12

Condensing Unit....................... 8

Electrical Requirements.......................................13

QuietQube® Ice Machines and 

CVD® Condensing Units................................13

3 Phase Scroll Compressor Rotation..............13

Refrigeration System Installation.........................15

Usage With Non-Manitowoc 

Condensing Units ...........................................15

Factory Equipment Refrigerant Amounts........ 16

Refrigeration Line Set Installation...................17

3 Phase Scroll Compressor Rotation 

CVD2075 Only ....................................................29

Condensing Unit Heat of Rejection .....................29

Operational Checks

General................................................................30

Water Level .................................. ... ....................30

Q0600C/Q0800C/Q1000C/QDUAL................ 30

Q1400C/SU1000C......................................... 31

Ice Thickness Check ...........................................32

Harvest Sequence Water Purge..........................33

Interior Cleaning and Sanitizing

AlphaSanÒ..........................................................36

Cleaning Procedure............................................. 37

Sanitizing Procedure ....................................... ... .39

Automatic Cleaning System (AuCS®) Accessory

........................................................................41

Removal of Parts for Cleaning or Sanitizing... 43

Removal from Service/Winterization

General................................................................63

CVD1476 Water Cooled Condensing Unit .......... 64

AuCS® Accessory................................... ............64

Component Identification

Ice Machine Head Section .................................. 65

Q0600C/Q0800C/Q1000C.............................65

SU1000C/SerVend UC-300 Dispenser .......... 6 7

Q1400C.......................................................... 68

QDUAL........................................................... 69

CVD

Condensing Unit .......................................70

CVD0675/CVD0875/CVD1075/CVD1475......70

CVD1476........................................................ 71

CVD1875/CVD2075 ....................................... 72

Ice Making Sequence of Operation

Q0600C/Q0800C/Q1000C/SU1000C ................. 73

Initial Start-Up or Start-Up After 

Automatic Shut-Off.........................................73

Freeze Sequence.... ... ....................................74

Harvest Sequence.......................................... 75

Automatic Shut-Off.........................................76

Q1400C............................................................... 79

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

Off................................................................... 79

Freeze Sequence.... ... ....................................79

Harvest Sequence.......................................... 80

QDUAL................................................................ 84

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

Off................................................................... 84

Freeze Sequence.... ... ....................................85

Harvest Sequence.......................................... 86

Electrical System

Component Specifications and Diagnostics Control

Board...................................................................91

Harvest/Safety Limit Light...............................91

Freeze Time Lock-In Feature......................... 91

Maximum Freeze Time...................................91

Safety Limits...................................................91

Three-Minute Delay........................................92

Inputs..............................................................92

Control Board Relays...................................... 92

Main Fuse............................................................95

Function..........................................................95

Specifications..................................................95

Check Procedure............................................95

Bin Switch...................................................... .. ....96

Function..........................................................96

Specifications..................................................96

Check Procedure............................................97

Ohm Test........................................................97

Water Curtain Removal Notes........................98

ICE/OFF/CLEAN Toggle Switch..........................99

Function..........................................................99

Specifications..................................................99

Check Procedure............................................99

Ice Thickness Probe (Harvest Initiation)............100

How the Probe Works...................................100

Ice Thickness Check..................................... 100

Ice Thickness Probe Diagnostics..................101

Diagnosing Ice Thickness Control Circuitry.. 102

Water Level Control Circuitry.............................105

Diagnosing an Ice Machine Head Section 

that Will Not Run ...............................................112

Diagnosing a Condensing Unit 

that Will Not Run ...............................................113

Compressor Electrical Diagnostics....................114

Diagnosing Start Components...........................116

Electrical Diagrams............................................117

Ice Machine Head Section............................117

Condensing Unit...........................................121

Refrigeration System

Refrigeration System Diagnostics....... ... .. ... ... ...123

General......................................................... 123

Refrigeration System Operation...................123

Ice Machine will Not Harvest Diagnostics ......... 127

Harvest Cycle Diagnostic List....................... 127

Ice Production Check........................................128

Installation/Visual Inspection Checklist......... 129

Water System Checklist............................... 130

Ice Formation Pattern...................................131

Evaporator Tubing Routing...........................131

Safety Limits................................................. 134

Analyzing Suction Pressure..........................142

Cool Vapor Valve.............................................. 146

Normal Operation.........................................146

Cool Vapor Valve Analysis........................... 147

Freeze Cycle Suction Line Temperature Analysis

.....................................................................148

Refrigeration Component Diagnostic Charts..... 150

General......................................................... 150

Procedure..................................................... 150

Final Analysis ............................................... 150

Refrigeration Component Diagnostic Charts..... 152

Single Expansion Valve – Q0600C/0800C/

Q1000C/SU1000C........................................ 152

Dual Expansion Valve – Q1400C/QDUAL.... 157

Pressure Control Specifications 

and Diagnostics.................................................160

Headmaster Control Valve ........................... 160

Water Regulating Valve................................170

Fan Cycle Control.........................................171

High Pressure Cutout (HPCO) Control......... 172

Low Pressure Cutout (LPCO) Control.......... 173

QuietQube

Tubing Schematics........................ 174

Q0600C/Q0800C/Q1000C...........................174

Q1400C/QDUALC........................................175

Cycle Times/24-Hour Ice Production/Refrigerant Pressure Charts

Q0600C/CVD675 Series Remote Air Cooled.... 177

Q0800C/CVD875 Series Remote Air Cooled.... 178

Q1000C/CVD1075 Series Remote Air Cooled.. 179 SU1000C/SerVend UC-300 Dispenser/CVD1075

Remote Air Cooled............................................180

Q1400C/CVD1475 Series Remote Air Cooled.. 181

Q1400C/CVD1476 Remote water Cooled......... 182

QDUAL/CVD1875 Remote Air Cooled..............183

QDUAL/CVD2075 Remote air Cooled...............184

Refrigerant Recovery/Evacuation

System Contamination Cleanup........................188

General.........................................................188

Determining Severity of Contamination........ 188

Cleanup Procedure.......................................190

Replacing Pressure Controls Without Removing

Refrigerant Charge............................................193

Filter-Driers........................................................195

Liquid Line Filter-Drier ..................................195

Suction Line Filter.........................................196

Total System Refrigerant Charge......................197

Refrigerant Oil...................................................198

Refrigerant Definitions.......................................199

Refrigerant Reuse Policy...................................200

Model Numbers

Important

This manual covers the followin g mo de ls :

Ice Machine Head

Section

QR0670C QD0672C

QY0674C

QR0870C QD0872C

QY0874C

QR1070C QD1072C

QY1074C

SU1024YC/SerVend

UC-300 Dispenser

QR1470C QD1472C

QY1474C

QRDUALC QDDUALC QYDUALC

*For 3 phase electrical option: add the number “3” 

to end of model number (CVD10753).

CVD® Condensing

Unit*

CVD0675

CVD0875

CVD1075 CVD1285

CVD1075 CVD1375

CVD1475 CVD1476

CVD1875 CVD2075

The ice machine sequence of operation for QuietQube

Ice Machines will differ. Verify the correct sequence of operation is being followed for the model you are working on.

–1–

Warning

Manitowoc QuietQube® Ice Machines require the ice storage bin to incorporate an ice deflector, when installing with non-Manitowoc ice storage systems or Manitowoc F style bins.

Prior to using a non-Manitowoc ice storage system with Manitowoc ice machines, contact the manufacturer to assure their ice deflector is compatible with Manitowoc ice machines.

MODEL/SERIAL NUMBER LOCATION

These numbers are required when requesting information from your local Manitowoc Distributor, service representative, or Manitowoc Ice, Inc. The model and serial number are listed on the OWNER WARRANTY REGISTRATION CARD. They are also listed on the MODEL/SERIAL NUMBER DECAL affixed to the ice machine.

–2–

Ice Machine Warranty Information

Important

OWNER WARRANTY REGISTRATION CARD

Warranty coverage begins the day the ice machine is installed.

Complete and mail the OWNER WARRANTY REGISTRATION CARD as soon as possible to validate the installation date.

If the OWNER WARRANTY REGISTRA TION CARD is not returned, Manitowoc will use the date of sale to the Manitowoc Distributor as the first day of warranty coverage for your new ice machine.

–3–

WARRANTY COVERAGE

Important

General

The following Warranty outline is provided for your convenience. For a detailed explanation, read the warranty bond shipped with each product.

Contact your local Manitowoc representative or Manitowoc Ice, Inc. if you need further warranty information.

This product is intended exclusively for commercial application. No warranty is extended for personal, family, or household purposes.

Parts

1. Manitowoc warrants the ice machine against defects in materials and workmanship, under normal use and service for three (3) years from the date of original installation.

2. The evaporator and compressor are covered by an additional two (2) year (five years total) warranty beginning on the date of the original installation.

Labor

1. Labor required to repair or replace defective components is covered for three (3) years from the date of original installation.

2. The evaporator is covered by an additional  two (2) year (five years total) labor warranty beginning on the date of the original installation.

Exclusions

The following items are not included in the ice machine’s warranty coverage:

1. Normal maintenance, adjustments and cleaning as outlined in this manual.

2. Repairs due to unauthorized modifications to the ice machine or use of non-standard parts without prior written approval from Manitowoc Ice, Inc.

–4–

3. Damage caused by improper installation of the ice machine, electrical supply, water supply or drainage, or damage caused by floods, storms, or other acts of God.

4. Premium labor rates due to holidays, overtime, etc.; travel time; flat rate service call charges; mileage and miscellaneous tools and material charges not listed on the payment schedule. Additional labor charges resulting from the inaccessibility of equipment are also excluded.

5. Parts or assemblies subjected to misuse, abuse, neglect or accidents.

6. Damage or problems caused by installation, cleaning and/or maintenance procedures inconsistent with the technical instructions provided in this manual.

This product is intended exclusively for commercial application. No warranty is extended for personal, family, or household purposes.

Authorized Warranty Service

To comply with the provisions of the warranty, a refrigeration service company qualified and authorized by your Manitowoc Distributor, or a Contracted Service Representative must perform the warranty repair.

NOTE: If the dealer you purchased the ice machine from is not authorized to perform warranty service, contact your Manitowoc Distributor or Manitowoc Ice, Inc. for the name of the nearest authorized service representative.

Service Calls

Normal maintenance, adjustments and cleaning as outlined in this manual are not covered by the warranty. If you have followed the procedures listed in this manual, and the ice machine still does not perform properly, call your Local Distributor or the Service Department at Manitowoc Ice, Inc.

–5–

Installation

LOCATION OF ICE MACHINE

The location selected for the ice machine head section must meet the following criteria. If any of these criteria are not met, select another location.

 The location must be free of airborne and other

contaminants.

 The air temperature must be at least 35°F (1.6 °C),

but must not exceed 110°F (43.4°C).

 The location must not be near heat-generating

equipment or in direct sunlight.

ICE MACHINE HEAD SECTION CLEARANCE REQUIREMENTS

Q0600C/Q0800C/Q1000C Top/Sides

There is no minimum clearance required, although 5 in. (127 mm) is recommended for efficient operation and servicing only.

Back

1 in. (25 mm) required when routing electrical inlet, water inlet and refrigeration tubing out of the top of the unit.

5 in. (127 mm) required when routing all connections out the back.

SU1000/SerVend UC-300: Top

40 in. (100 mm) required for cleaning procedures and servicing.

Back

12 in. (30.5cm) required for cleaning procedures and servicing.

–6–

STACKING TWO ICE MACHINES ON A  SINGLE STORAGE BIN

Q0600C/Q0800C/Q1000C Ice Machines: A stacking kit is required for stacking two ice machines. Installation instructions are supplied with the stacking kit.

Q1400C/QDUAL Ice Machines:  Q1400C and QDUAL ice machines cannot be stacked. However two Q1400C/QDUAL ice machines can be placed side by side on a 60 in. Manitowoc F style bin.

ICE DEFLECTOR

QDUAL ice machines mounted on an ice dispenser do not require an ice deflector.

QDUAL ice machines mounted on an ice storage bin (Manitowoc or non-Manitowoc) require the use of an ice deflector. Refer to sales literature to determine the proper kit for your application. This kit is necessary to allow access to the shut-off valves during installation and will improve access during future service.

An ice deflector is required for all ice machines installed on a bin.

–7–

LOCATION OF CVD® CONDENSING UNIT

The location selected for the CVD® Condensing Unit must meet the following criteria. If any of these criteria are not met, select another location.

 The air temperature must be at least -20°F

(-28.9°C), but must not exceed 130°F (54.4°C)



-20°F (-28.9°C) to 120°F (54.4°C) QDUAL CVD1875/CVD2075).

 CVD1476 only - The air temperature must be at

least 50°F (10°C) but must not exceed 110°F (43°C).

 The location must not allow exhaust fan heat and/or

grease to enter the condenser.

 The location must not obstruct airflow through or

around the condensing unit.

CONDENSING UNIT CLEARANCE REQUIREMENTS

Top/Sides

There is no minimum clearance required, although 6 in. (152 mm) is recommended for efficient operation and servicing only.

Front/Back

4 ft. (122 cm)

–8–

ICE MACHINE HEAD SECTION WATER 

Important

SUPPLY AND DRAINS Potable Water Supply

Local water conditions may require treatment of the water to inhibit scale formation, filter sediment, and remove chlorine odor and taste.

If you are installing a Manitowoc water filter system, refer to the Installation Instructions supplied with the filter system for ice making water inlet connections.

Potable Water Inlet Lines

Follow these guidelines to install water inlet lines:  Do not connect the ice machine to a hot water

supply. Be sure all hot water restrictors installed for other equipment are working. (Check valves on sink faucets, dishwashers, etc.)

 If water pressure exceeds the maximum

recommended pressure obtain a water pressure regulator from your Manitowoc Distributor.

Float Valve - 80 psi (551.5 kPa) Water Inlet Valve - 90 psi (620.4 kPA)

 Install a water shut-off valve for ice making potable

water.

 Insulate water inlet lines to prevent condensation.

–9–

Drain Connections

Follow these guidelines when installing drain lines to prevent drain water from flowing back into the ice machine and storage bin:

 Drain lines must have a 1.5 in. drop per 5 ft. of run

(2.5 cm per meter), and must not create traps.

 The floor drain must be large enough to

accommodate drainage from all drains.

 Run separate bin and ice machine drain lines.

Insulate them to prevent condensation.

 Vent the bin and ice machine drain to the

atmosphere.

 Drains must have a union or other suitable means of

disconnection from the ice machine when servicing is required.

 The SU1024YC is designed for installation on a

SerVend UC-300 dispenser only. Refer to the SerVend UC-300 Installation, Use and Care Manual for additional drain requirements.

–10–

WATER COOLED CONDENSER WATER 

Warning

SUPPLY AND DRAINS Condenser Water Supply

Local water conditions may require treatment of the water to inhibit scale formation to filter sediment.

Water Cooled Condenser Lines

Follow these guidelines to install water lines:  Contact your distributor if your water pressure is

greater than 150 psi (1034kPA). A special order condensing unit is available that allows water pressure up to 350 psi (2413 kPA).

 Install a shutoff valve (inlet and outlet on cooling

tower or closed loop circuits) to allow isolation of the water system.

 Water entering the condenser must not exceed 90°F

(32.2°C).

 Water flow through the condenser must not exceed

5 gallons (19 liters) per minute.

 Allow for a pressure drop of 8 psi (55 kPA) between

the condenser water inlet and outlet.

 Water exiting the condenser must not exceed 110°F

(43.3°C)

Water pressure at the condenser cannot exceed 150 psig (1034kPA) with the standard water regulating valve. Contact your distributor if your water pressure is greater than 150 psig (1034 kPA). A special order condensing unit is available that allows water pressure up to 350 psig (2413 kPA).

–11–

Condensing Unit Drain Connections

The condensing unit drain is provided to remove any condensate produced by the suction accumulator. Condensate amounts will vary depending on temperature and humidity.

 The condensing unit must be level front to back and

side to side to allow the condensate to drain.

 Drain lines must have1.5-inch drop per 5 feet of run

(2.5 cm per meter), and must not create traps.

 Drain termination must meet applicable codes.

–12–

ELECTRICAL REQUIREMENTS

Important

QuietQube® Ice Machines and  CVD® Condensing Units

Ice Machine Head Section

Voltage

Phase

Cycle

Max. Fuse/

Circuit

Breaker

Total

Amps

Q0600C Q0800C Q1000C

SU1000C

115/1/60

230/1/50

15 amp 15 amp

1.1

0.6

Q1400C

QDUAL

The QuietQube® Ice Machine Head Section and

CVD

Condensing Unit are wired independently

from each other.

3 Phase Scroll Compressor Rotation

CVD2075 3 PHASE ONLY A trained and qualified technician must verify

compressor rotation at equipment startup or compressor warranty will be void. Incorrect rotation of a scroll compressor can be identified by:

 Noisy compressor operation  Elevated suction pressure  Low discharge pressure  Compressor trips on overload protector

To change compressor rotation, reverse (exchange locations) any two incoming power supply leads.

–13–

CVD0675

Caution

CVD0875

CVD1075

CVD1475

CVD1476

CVD1875

CVD2075

CVD® Condensing Unit

Voltage

Phase

Cycle

208-230/1/60 208-230/3/60

230/1/50

208-230/1/60 208-230/3/60

230/1/50

208-230/1/60 208-230/3/60

230/1/50

208-230/1/60 208-230/3/60

230/1/50

208-230/1/60 208-230/3/60

230/1/50

208-230/1/60 208-230/3/60

230/1/50

Max. Fuse/

Circuit

Breaker

15 amp 15 amp 15 amp

20 amp 15 amp 20 amp

25 amp 20 amp 25 amp

35 amp 25 amp 35 amp

30 amp 20 amp

40 amp 30 amp 40 amp

50 amp 40 amp 50 amp

Min.

Circuit

Amps

9.6

7.3

9.0

11.7

8.2

11.3

15.6

10.6

13.8

19.6

14.1

19.8

15.3

10.8

21.1

11.0

23.2

27.1

19.9

29.9

Scroll Compressor Rotation

(CVD2075 3 Phase Only)

Correct compressor rotation must be verified at start-up. Incorrect rotation will result in increased compressor noise and higher than normal suction pressure. T o change rotation, reverse two lead wires on the incoming power supply. Compressor must be checked by a qualified technician or compressor warranty will be void.

–14–

REFRIGERATION SYSTEM INSTALLATION

QuietQube® Ice

Machine

CVD

Condensing

Unit

Line Set

Q1000C

SU1000C/ UC-300

Q1400C

Q0600C Q0800C

QDUAL

Line Set

RC 20/30/50

RC 21/31/51

RC 22/32/52

Suction

(19.1 mm)

(15.9 mm)

(22.2 mm)

Line

3/4 in.

5/8 in.

7/8 in.

CVD1075 CVD1475 CVD1476

CVD0675 CVD0875

CVD1875 CVD2075

Liquid

Line

1/2in.

(12.7 mm)

3/8 in.

(9.5 mm)

5/8 in.

(15.9 mm)

RC-20 RC-30 RC-50

RC-21 RC-31 RC-51

RC-22 RC-32 RC-52

Insulation

Thickness

Suction

Line

1/2"

(13 mm)

Liquid Line

1/4" (7 mm)

Suction

Line

3/4"

(19 mm)

Liquid Line

1/4" (7 mm)

Usage With Non-Manitowoc Condensing Units

Manitowoc CVD® Condensing Units are specifically designed for usage with a QuietQube Head Section. Standard condensing units will not operate a QuietQube

Ice Machine Head Section.

–15–

Ice Machine

Factory Equipment Refrigerant Amounts

Caution

ICE MACHINE HEAD SECTION

Q0600C/Q0800C/Q1000C/SU1000C/Q1400C

Each ice machine head section ships from the factory with an R-404A refrigerant charge appropriate for the entire system operation. The serial tag on the ice machine indicates the refrigerant charge. The refrigerant charge is sufficient to operate the ice machine in ambient temperatures between -20°F (-28.9°C) and 130°F (54.4°C), (CVD1476, 50°F to 110°F, 10°C to 43°C) with line set lengths of up to 100 ft. (30.5 m).

QDUAL  Each QDUAL ice machine head section ships from the factory with an R-404A refrigerant charge appropriate for installations with up to 50" of refrigerant tubing. The serial tag on the ice machine indicates the refrigerant charge. For line set runs longer than 50 ft., 1 lb. of additional refrigerant must be added for each 10 ft. of line set run. The receiver is designed to hold a charge sufficient to operate the ice machine in ambient temperatures between -20°F (-28.9°C) and 120°F (49°C), with line set lengths of up to 100 feet (15 m)

Never add more than nameplate charge to the refrigeration system for any application.

The 60-month compressor warranty (including the 36-month labor replacement warranty) will not apply if the Manitowoc Ice Machine and Manitowoc CVD® Condensing Unit are not installed according to specifications. This warranty also will not apply if the refrigeration system is modified with a condenser, heat reclaim device, or other parts or assemblies not manufactured by Manitowoc Ice, Inc.

–16–

Warning

Potential Personal Injury Situation

Caution

The ice machine head section contains the refrigerant charge. Installation and brazing of the line sets must be performed by a properly trained refrigeration technician aware of the dangers of

dealing with refrigerant charged equipment.

Refrigeration Line Set Installation

Refrigeration line set installation consists of vertical and horizontal line set distances between the ice machine and the condensing unit. The following guidelines, drawings and calculation methods must be followed to assure proper oil return and CVD

Condensing Unit/ice Machine operation. Step 1. Prior to installation of the ice machine and

Condensing Unit be sure that the distance

CVD between them is within the line set routing guidelines outlined in this manual.

Step 2. Properly route refrigeration tubing between the Ice Machine Head Section and the CVD

Condensing

Unit. For a roof/wall penetration, cut a 3-in. (76.2 mm)

circular hole in the wall or roof for routing of refrigeration tubing, as required. A qualified person must perform all roof penetrations.

A. LINE SET LENGTH

QuietQube® Ice Machines will not function with line sets greater than 100 ft. (30.5 m). Do not attempt to go beyond this distance and add refrigerant charge to compensate!

–17–

B. LINE SET RISE OR DROP

SV1751

35 FT. (10.7 M)

MAXIMUM

DISTANCE

SV1750

15 FT . (4.5 M)

MAXIMUM DISTANCE

35 ft. (10.7 m) Rise: The maximum distance the CVD®

Condensing Unit can be above the ice machine.

15 ft. (4.5 m) Drop: The maximum distance the CVD® Condensing Unit can be below the ice machine.

–18–

C. SUCTION LINE OIL TRAPS

Caution

SV1751

21 FT. OR

MORE RISE

ADDITIONAL

TRAP KIT

REQUIRED.

Do not form unwanted traps in refrigeration lines. Never coil excess refrigeration tubing.

0 to 20 ft. (0 to 6.1 m) Rise: The ice machine head section has one oil trap built in which allows for a maximum condenser rise of 20 ft. (6.1 m) without additional traps in the suction line.

21 to 35 ft. (6.4 to 10.7 m) Rise: The suction line requires an additional oil trap (“S” type) to be installed. Install the trap as close as possible to midpoint between the ice machine head section and CVD

Condensing Unit. S-Trap Kits are available from Manitowoc (refer to chart).

–19–

Manitowoc S-Trap Kit

Caution

SV1760

Model S-Trap Kit # Tubing Size

Q0600C Q0800C

Q1000C

SU1000C

Q1400C

QDUAL K00164

SERVICE LOOP A service loop in the line set permits easy access to

the ice machine for cleaning and service.  The supplied service loop is an installation

requirement. Excess tubing must allow 180 degree rotation of the ice machine.

 A service loop is not considered an oil trap.  The service loop is not included when calculating

the length, rise or drop of the tubing run.

 Do not use hard rigid copper for the service loop.

K00172

K00166

5/8 in.

(15.9 mm)

3/4 in.

(19.1 mm)

7/8 in.

(22.2 mm)

If a line set has a rise followed by a drop, another rise cannot be made. Likewise, if a line set has a drop followed by a rise, another drop cannot be made.

–20–

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