Installation Instructions Section 2
2-20
Part Number 000002477 3/08
Refrigeration System Installation
USAGE WITH NON-MANITOWOC
CONDENSING UNITS
Manitowoc CVD® Condensing Units are specifically
designed for usage with a QuietQube® Ice Machine
Head Section. Standard condensing units and Non-
Manitowoc condensing units will not operate a
QuietQube® Ice Machine Head Section.
Factory Equipment Refrigeration Amounts
ICE MACHINE HEAD SECTION
Each ice machine head section ships from the factory
with a 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 & 130°F (-29°C &
54°C)*. With line set lengths of up to 100 feet (30.5 m).
*CVD675/CVD2085 = -20°F to 120°F (-29°C to 49°C)
CVD1486 = 50°F to 110°F (10°C to 43°C)
CVD
® CONDENSING UNIT
Each condensing unit ships from the factory pressurized
with 50/50 nitrogen helium mixture that must be
removed during the installation process (approximately
20 psig).
REFRIGERATION LINE SETS/TRAP KIT
Refrigeration Rated Tubing and Trap Kits are shipped
capped with atmospheric pressure.
QuietQube®
Ice Machine
Remote Single
Circuit
Condenser
Line Set*
S0600C
IB620C
CVD675
RC-21
RC-31
RC-51
S0850C
IB820C
CVD885
S1000C CVD1085
IB1020C CVD1185
RC-20
RC-30
RC-50
S1200C CVD1285
S1470C
CVD1485
CVD1486
S1870C CVD1885
S2170C CVD2085
RC-23
RC-33
RC-53
*Line Set
Suction
Line
Liquid
Line
Insulation
Thickness
RC 21/31/51
5/8 inch
(15.9 mm)
3/8 inch
(9.5 mm)
1/2”(13mm)
Suction Line
1/4” (7mm)
Liquid Line
RC 20/30/50
3/4 inch
(19.1 mm)
1/2 inch
(12.7 mm)
1/2”(13mm)
Suction Line
1/4” (7mm)
Liquid Line
RC 23/33/53
3/4 inch
(19.1 mm)
5/8 inch
(15.9 mm)
1/2”(13mm)
Suction Line
1/4” (7mm)
Liquid Line
Manitowoc remote systems are only approved and
warranted as a complete new package. Warranty on
the refrigeration system will be void if a new ice
machine head section is connected to pre-existing
(used) tubing or condensing units or vice versa.
The refrigeration system 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.
Potential Personal Injury Situation
The ice machine head section contains the refrigerant
charge. Installation and brazing of the line sets must be
performed by a properly trained and EPA certified
refrigeration technician aware of the dangers of dealing
with refrigerant charged equipment.
Never add more than nameplate charge to the
refrigeration system for any application.
Installation of a QuietQube® Condensing Unit may require
the use of special equipment for placement. Trained and
qualified personnel are required for proper rigging and
lifting. Holes are provided on the corners of the condensing
unit to allow the use of lifting shackles.
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