Manitowoc Ice RN1478C Installation Manual
RN Model Nugget
Manitowoc
Installation, Use & Care Manual
This manual is updated as new information and models are released.
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America’s #1 Selling Ice Machine
Part Number 000007282 10/13
Ice Machines
Section 1
General Information
Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Section 2
Installation Instructions
Location of Ice Machine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Clearance Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installation Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Ice Machine Heat of Rejection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Removing Drain Plug and Leveling the Ice Sto r age Bin . . . . . . . . . . . . . . . . . . . . 6
Electrical Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Maximum Breaker Size & Minimum Circuit Amperage Chart . . . . . . . . . . . . . . . . 8
Water Supply and Drain Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Water Supply and Drain Line Sizing/Connections . . . . . . . . . . . . . . . . . . . . . . . . 10
Refrigeration System Installation
Remote Condensing Unit Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Refrigeration Line Set Installation
Remote Condensing Unit Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Installation Check List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
RN0400 Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Additional Checks for QuietQube Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table of Contents
Dispenser Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Fuse/Circuit Breaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Ground Fault Circuit Interrupter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Minimum Power Cord Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
For United Kingdom Only . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
QuietQube Remote Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Water Inlet Lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Drain Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Water-Cooled Condenser Water Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Cooling Tower Applications (Water-Cooled Models) . . . . . . . . . . . . . . . . . . . . . 9
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
A. Line Set Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
B. Line Set Rise or Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
C. Suction Line Oil Traps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Before Turning Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
After Turning Power On . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2 Part Number 000007282 10/13
Section 3
Operation
Section 4
Maintenance
Table of Contents (continued)
Bin Thermostat (RN0400 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
RN0400 Self-Contained Air or Water-Cooled Sequence of Operation . . . . . . . . 18
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
RN1000/RN1400 Self-Contained
Air-Cooled & Water-Cooled
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Flush Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
RN1000C/RN1200C QuietQube
Remote Condensing Unit
Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Cleaning and Sanitizing Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Exterior Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Cleaning/Sanitizing Procedure RN0400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Cleaning/Sanitizing Procedure RN1000/RN1200/RN1400 . . . . . . . . . . . . . . . . 23
Section 5
Customer Support
Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Commercial Ice Machine Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Residential Ice Machine Limited Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Part Number 000007282 10/13 3
General Information
!
Warning
!
Warning
!
Caution
Model Numbers
This manual covers the following models:
Self-Contained
Air-Cooled
RN0408A --- --- --RN1008A RN1009W RN1078C RCU1075
--- --- RN1278C RCU1275
RN1408A RN1409W --- ---
Remove all ice machine panels before lifting and
installing.
Do not operate equipment that has been misused,
abused, neglected, damaged, or altered/modified
from that of original manufactured specifications.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory
or mental capabilities, or lack of experience and
knowledge, unless they have been given
supervision concerning use of the appliance by a
person responsible for their safety.
Self-Contained
Water-Cooled
Section 1
DISPENSER INSTALLATION
• No adapter is needed for machines that match the
size of the dispenser unless required by the
dispenser manufacturer.
• No deflector is required unless specified by the
dispenser manufacturer.
• Ice machine must be secured to dispenser.
• Extension ice discharge tube (supplied with ice
machine) must be installed in dispenser applications
- Unscrew factory installed ice discharge tube and
install extended ice discharge tube to lower the level
of ice in the dispenser. Removal and inst allation must
be performed from the ice machine compartment (top
down) and not from the dispenser compartment
(bottom up).
QuietQube
Head Section
RCU Remote
Condensing Unit
All dispenser manufacturers require a kit be
installed for Nugget type ice. Contact the dispenser
manufacturer for the correct adapter and nugget
dispensing kit for your specific model dispenser.
4 Part Number 000007282 10/13
Section 2
!
Caution
Installation Instructions
Location of Ice Machine
The location selected for the ice machine 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 50°F (14.4°C),
but must not exceed 100°F (37.8°C).
• Remote air cooled - The air temperature must be at
least -20°F (-29°C), but must not exceed 120°F
(49°C).
• The location must not be near heat-generating
equipment or in direct sunlight and must be protected
from weather.
• The location must not obstruct air flow through or
around the ice machine. Refer to the chart below for
clearance requirements.
• Location must be indoors.
Clearance Requirements
The entire front of the ice machine must be clear of
obstructions/connections to allow removal.
Installation Requirements
• The ice machine and bin must be level.
• Run the ice machine and bin drains separately.
• Bin drain termination must have an air gap.
• The ice machine and bin must be sanitized after
installation.
• Local water conditions may require treatment of the
water to inhibit scale formation, filter sediment, and
remove chlorine odor and taste.
• Routine adjustments and maintenance procedures
outlined in this manual are not covered by the
warranty.
RN0400
Back 5 in. (12.7 cm) —
Sides/Top 8 in. (20.3 cm) —
RN1000/RN1200/RN1400
Back 5 in. (12.7 cm) 5 in. (12.7 cm)
Sides/Top 8 in. (20.3 cm) 8 in. (20.3 cm)
* There is no minimum clearance required for water-cooled or remote
ice machines. This value is recommended for efficient operation and
servicing only.
Self-Contained
Air-Cooled
Self-Contained
Air-Cooled
Self-Contained
Water-Cooled
Water-Cooled
and Remote*
The ice machine must be protected if it will be
subjected to temperatures below 32°F (0°C). Failure
caused by exposure to freezing temperatures is not
covered by the warranty.
Part Number 000007282 10/13 5
Installation Instructions Section 2
!
Caution
Ice Machine Heat of Rejection
Series
Ice Machine
RN0400 - 60 HZ
RN0400 - 50 HZ
RN1000 - 60 HZ
RN1000 - 50 HZ
RN1400 - 60 HZ
RN1400 - 50 HZ
The figure shown is an average.
Heat of Rejection
Air-Cooled
5,000 BTU/hr
1260 Kcal/hr
5,000 BTU/hr
1260 Kcal/hr
11,300 BTU/hr
2848 Kcal/hr
11,300 BTU/hr
2848 Kcal/hr
16,000 BTU/hr
4032 Kcal/hr
15,500 BTU/hr
3906 Kcal/hr
Ice machines, like other refrigeration equipment, reject
heat through the condenser. It is helpful to know the
amount of heat rejected by the ice machine when sizing
air conditioning equipment where self-contained aircooled ice machines are installed.
This information is also necessary when evaluating the
benefits of using water-cooled or remote condensers to
reduce air conditioning loads. The amount of heat added
to an air conditioned environment by an ice machine
using a water-cooled or remote condenser is negligible.
Water-Cooled
—
—
12,800 BTU/hr
3226 Kcal/hr
12,800 BTU/hr
3226 Kcal/hr
16,400 BTU/hr
4133 Kcal/hr
15,500 BTU/hr
3906 Kcal/hr
Removing Drain Plug and Leveling the Ice
Storage Bin
1. Remove threaded plug from drain fitting.
2. Screw the leveling legs onto the bottom of the bin.
3. Screw the foot of each leg in as far as possible.
The legs must be screwed in tightly to prevent them
from bending.
4. Move the bin into its final position.
5. Level the bin to assure that the bin door closes and
seals properly . Use a level on to p of the bin. T urn the
base of each foot as necessary to level the bin.
6. Inspect bin gasket prior to ice machine installation.
(Manitowoc bins come with a closed cell foam
gasket installed along the top surface of the bin.)
7. Remove all panels from ice machine before lifting.
and installing on bin. Remove both front panels, top
cover, left and right side panels.
Knowing the amount of heat rejected is also important
when sizing a cooling tower for a water-cooled
condenser.
6
Part Number 000007282 10/13
Section 2 Installation Instructions
!
Warning
!
Warning
Important
Electrical Service
All wiring must conform to local, state and national
codes.
VOLTAGE
The maximum allowable voltage variation is ±1 0% of the
rated voltage at ice machine start-up (when the electrical
load is highest).
The ice machine must be grounded in accordance
with national and local electrical codes.
All electrical work, including wire routing and grounding,
must conform to local, state and national electrical
codes. The following precautions must be observed:
• The ice machine must be grounded.
• A separate fuse/circuit breaker must be provide d fo r
each ice machine.
• A qualified electrician must determine proper wire
size dependent upon location, materials used and
length of run (minimum circuit ampacity can be used
to help select the wire size).
• The maximum allowable voltage variation is +/-10 of
the rated voltage at ice machine start-up (when the
electrical load is highest).
• Check all ground screws in the control box and verify
they are tight before starting the ice machine.
GROUND FAULT CIRCUIT INTERRUPTER
We do not recommend the use of a GFCI/GFI circuit
protection with our equipment. If a GFCI/GFI is required
by code, use a GFCI/GFI breaker rather than outlet
which is more prone to intermittent nuisance trips than
panel circuit breakers.
MINIMUM POWER CORD SPECIFICATIONS
RN400 – NEMA 5-20P Plug
RN1000A and RN1000W – NEMA 6-15P Plug
RN1000C and RN1200C – NEMA 5-15P Plug
RN1400A and RN1400W – NEMA 6-20P
The wire size to the receptacle is dependent upon
location, materials used, length of run, etc., so it must be
determined by a qualified electricia n. Lo ca l, state or
national requirements will supersede our minimum
requirements.
FOR UNITED KINGDOM ONLY
As the colors of the wires in the mains lead of the appliance may not
correspond with the colored markings identifying the terminals in your plug,
proceed as follows:
• The wire which is colored green and yellow
terminal in the plug which is marked with the letter E or by the earth
ground symbol or colored green or green and yellow.
• The wire colored blue
with the letter N or colored black.
• The wire colored brown
marked with the letter L or colored red.
must be connected to the terminal which is marked
must be connected to the terminal which is
must be connected to the
Observe correct polarity of incoming line voltage.
Incorrect polarity can lead to erratic ice machine
operation.
FUSE/CIRCUIT BREAKER
A separate fuse/circuit breaker must be provided for
each ice machine.
Part Number 000007282 10/13 7
Installation Instructions Section 2
Important
Maximum Breaker Size & Minimum Circuit Amperage Chart
Due to continuous improvements, this information is for reference only.
Please refer to the ice machine serial number tag to verify electrical data.
Serial tag information overrides information listed on this p age.
Air-Cooled Water-Cooled QuietQube
Maximum
Breaker
Minimum
Circuit
Amps
Maximum
Fuse/Circuit
Breaker
Minimum
Circuit
Amps
Maximum
Fuse/Circuit
Breaker
Series Ice
Machine
RN0400
RN1000
RN1200
RN1400
Voltage
Phase
Cycle
115/1/60 20 Amp 11 Amp — — — —
230/1/50 15 Amp 11 Amp — — — —
208-230/1/60 15 Amp 11 Amp 15 Amp 11 Amp — —
220-240/1/50 15 Amp 11 Amp 15 Amp 11 Amp — —
115/1/60 — — — — 15 Amp 6 Amp
208-230/1/60 — — — — — —
220-240/1/50 — — — — — —
115/1/60 — — — — 15 Amp 6 Amp
208-230/1/60 20 Amp 12 Amp 20 Amp 12 Amp — —
220-240/1/50 20 Amp 16 Amp 20 Amp 16 Amp — —
115/1/60 — — — — — —
Fuse/Circuit
QUIETQUBE REMOTE CONDENSING UNIT
Condensing Unit Voltage Phas eCycle Maximum Fuse/Circuit Breaker Minimum Circuit Amps
208-230/60/1 15 15
RCU1075
RCU1275
208-230/60/3
208-230/50/1
208-230/60/1 15 15
208-230/60/3
208-230/50/1
15 15
15 15
15 15
15 15
Total
Circuit
Amps
8
Part Number 000007282 10/13
Section 2 Installation Instructions
!
Caution
Important
Water Supply and Drain Requirements
WATER INLET LINES
Follow these guidelines to install water inlet lines:
• If you are installing a Manitowoc Arctic Pure water
filter system, refer to the Installation Instructions
supplied with the filter system for ice making water
inlet connections.
• 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 of 70 psig (483 kPa), obtain
a water pressure regulator from your Manitowoc
distributor.
• Install a water shut-off valve for both the ice making
and condenser water lines.
• Insulate water inlet lines to prevent condensation.
Do not apply heat to water valve inlet fitting. This will
damage plastic water inlet connection.
WATER-COOLED CONDENSER WATER PRESSURE
Water pressure at the condenser cannot exceed
150 psig (1034 kPA) with th e standard water-regulating
valve. Contact your distributor if your water pressure is
greater than 150 psig (1034 kPA).
COOLING TOWER APPLIC ATIONS
(WATER-COOLED MODELS)
A water cooling tower installation does not require
modification of the ice machine. The water regulator
valve for the condenser continues to control the
refrigeration discharge pressure.
It is necessary to know the amount of heat rejectio n, and
the pressure drop through the condenser and water
valves (inlet and outlet) when using a cooling tower on
an ice machine.
• Water entering the condenser must not exceed
90°F (32.2°C).
• Water flow through the condenser must not exceed
1.25 gallons (4.73 liters) per minute.
• Allow for a pressure drop of 7 psi (0.5 bar) between
the condenser water inlet and the outlet of the ice
machine.
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 inch drop per 5 feet 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.
• Water exiting the condenser must not exceed
110°F (43.3°C).
.
The Commonwealth of Massachusetts requir es that
all water-cooled models must be connected only to a
closed loop, cooling tower system.
Part Number 000007282 10/13 9
Installation Instructions Section 2
!
Caution
SEPERATE BIN AND
ICE MACHINE DRAINS
ARE REQUIRED.
ROUTE DRAIN
TUBING TO OPEN
SITE DRAIN.
WATER SHUT-OFF VALVE
REQUIRED ON RN0400 ONL Y -
ICE MAKING WATER INLET
TUBING 3/8" MIN. I.D. (.95 CM)
Water Supply and Drain Line Sizing/Connections
Plumbing must conform to state and local codes.
Location
Ice Making
Water Inlet
Ice Making
Water Drain
Condenser
Water Inlet
Condenser
Water Drain
Bin Drain
Large Capacity
Bin Drain
Water
T emperature
45°F (7.2°C) Min.
90°F (32.2°C) Max.
— — 3/4 in. (1.90 cm) Pipe Thread
90°F (32.2°C) Max.
— —
— —
— — 1 in. (2.54 cm) Male Pipe Thread 1 in. (2.54 cm) min. inside diameter
The exact locations of inlets and drains for the model you are working on may vary
Water Pressure Ice Machine Fitting
20 psig (138 kPa) Min.
70 psig (483 kPa) Max.
Standard
20 psig (138 kPa) Min.
150 psig (1034 kPa) Max.
1/2 in. (1.27 cm) FPTs 1/4 in. (0.64 cm) min
3/8 in. (0.95 cm) Female Pipe Thread
3/8 in. (0.95 cm)
Female Pipe Thread
3/4 in. (1.91 cm)
Female Pipe Thread
Tubing Size Up to Ice
Machine Fitting
inside diameter
3/4 in. (1.90 cm) min
inside diameter
3/8 in. (0.95 cm) min
inside diameter
3/4 in. (1.91 cm) minimum
inside diameter
10
Typical Water Supply Drain Installation
Part Number 000007282 10/13
Section 2 Installation Instructions
Important
!
Caution
!
Warning
!
Caution
!
Warning
Refrigeration System Installation
Remote Condensing Unit Only
QuietQube®
Ice Machine
RN1000C
RN1200C
*Line Set Suction Line Liquid Line
RC 21/31/51
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.
USAGE WITH NON-MANITOWOC
CONDENSING UNITS
Manitowoc Remote Condensing Units are specifically
designed for usage with a QuietQube® Ice Machine
Head Section. Standard condensing units and NonManitowoc condensing units are not approved for use
with a QuietQube® Ice Machine Head Section.
Remote
Condensing Unit
RCU1075
RCU1275
5/8 inch
(15.9 mm)
Line Set*
RC-21
RC-31
RC-51
3/8 inch
(9.5 mm)
Factory Equipment Refrigeration Amounts
ICE MACHINE HEAD SECTION
Each ice machine condensing unit 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 re frigerant
charge is sufficient to operate the ice machine in
ambient temperatures between -20°F (-28.9°C) and
120°F (48.9°C). With line set lengths of up to 100 feet
(30.5 m).
Potential Personal Injury Situation
The QuietQube Condensing Unit 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.
REFRIGERATION LINE SETS/TRAP KIT
Refrigeration Rated Tubing and Trap Kits are shipped
capped with atmospheric pressure.
The 60-month compressor warranty (including the 24month labor replacement warranty) will not apply if the
Manitowoc Ice Machine and Manitowoc Remote
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.
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.
Part Number 000007282 10/13 11
Installation Instructions Section 2
!
Warning
!
Warning
Important
35 ft. (10.7 m)
MAX.
DISTANCE
SV1751
15 ft. (4.5 m)
MAX.
DISTANCE
SV1750
Refrigeration Line Set Installation
Remote Condensing Unit Only
GENERAL
Refrigeration line set installations consist 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 remote condensing unit/ice
machine operation.
The refrigeration line set installer must be USA
Government-Environmental Protection Agency (EPA)
certified in proper refrigerant handling and servicing
procedures.
The QuietQube Condensing unit contains refrigerant
charge. The two refrigeration valves must remain
closed until proper installation of the line sets is
completed.
Disconnect electrical power to the ice machine head
section and remote condensing unit before
proceeding.
A. LINE SET LENGTH
100 feet (30.5 m) Length: The maximum measured
length the line set can be.
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 (48.9°C), with line
set lengths of up to 100 feet (30.5 m).The maximum
amount of lineset which can be exposed on the rooftop
is 25% of the total length of the lineset.
QuietQube® ice machines will not function with line
sets greater than 100 feet (30.5 m). Do not attempt to
go beyond this distance and add refrigera nt ch arge to
compensate!
B. LINE SET RISE OR DROP
Step 1 Verify Ice Machine and Remote Condensing
Unit Locations Are Within Guidelines
Prior to installation of the ice machine head section and
remote condensing unit be sure that the distance
between them is within the line set routing guidelines
outlined in this manual.
Roof/Wall Penetration
If required, cut a 3-inch (76.2 mm) circular hole in the
wall or roof for routing of refrigeration tubing. A qualified
person must perform all roof penetra tio ns .
Step 2 Route Refrigeration Tubing
Properly route refrigeration tubing between the ice
machine head section and the remote condensing unit.
35 feet (10.7 m) Rise: The maximum distance the
remote condensing unit can be above the ice machine.
15 feet (4.5 m) Drop: The maximum distance the
remote condensing unit can be below the ice machine .
12
Part Number 000007282 10/13
Section 2 Installation Instructions
!
Caution
21 ft. (6.4 m)
OR MORE RISE
ADDITIONAL
TRAP KIT
REQUIRED
SV1751
SV1760
!
Caution
!
Caution
C. SUCTION LINE OIL TRAPS
Do not form unwanted traps in refrigeration lines.
Never coil excess refrigeration tubing.
0 to 20 feet (0 to 6.1 m) Rise: No oil trap is required
when the condensing unit is located 20 feet (6.1 m) or
less above the ice machine head section.
21 to 35 feet (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 remote cond en sin g
unit. S-Trap Kits are available from Manitowoc.
Service Loop
A service loop in the line set permits easy access to the
ice machine for cleaning and service.
• A service loop is not considered an oil trap.
• The service loop is not included when calculating
length, rise or drop of the tubing run.
• Do not use hard rigid copper for the service loop.
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.
Step 3 Lengthening or Reducing Line Set Lengths
Do not form unwanted traps in refrigeration lines.
Never coil excess refrigeration tubing.
When the line set requires shortening or lengthenin g, do
so before connecting the line set to the ice machine
head section or the remote condensing unit.
Part Number 000007282 10/13 13
Installation Instructions Section 2
!
Warning
!
Warning
MINIMIZE THE TIME THE
REFRIGERATION SYSTEM IS
EXPOSED TO THE A TMOSPHERE
(15 MINUTES MAXIMUM)
SUCTION LINE
LIQUID LINE
SUCTION LINE
LIQUID LINE
Suction and liquid line shut-off valves
must remain closed until evacuation and
pressure testing are complete.
Step 4 Connecting the line set
To prevent oxidation of the copper, purge line set and
condensing unit with dry nitrogen while brazing.
A. Connect the Line Set to the Remote Condensing
Unit
The QuietQube Condensing unit contains refrigerant
charge. The two refrigeration valves must remain
closed until proper installation of the line sets is
completed.
The line set shut-off valves must remain closed and be
protected from heat during the braz ing pro ce ss. Wrap
the valves in a wet rag or other type of heat sink prior to
brazing. Cool braze joint with water immediately after
brazing to prevent heat migration to the valve.
Step 5 Pressure Test and Evacuate Line Set and
Ice Machine Head Section
• Suction and liquid line set shutoff valves must remain
closed until pressure testing and evacuation are
complete.
• Pressure testing and evacuation can be performed
from the ice machine head section or CVD
condensing unit shut-off valves.
• Schrader valve core removal tools that allow for
removal and installation of the valve cores without
removing manifold gauge set hoses are
recommended to decrease the evacuation time.
• Pressure test @ 150 psi (1000 kPa) for a minimum of
15 minutes.
• Minimum evacuation level is 500 microns.
B. Connect the Line Set to the Ice Machine Head
Section
The ice machine head section ships from the factory
pressurized with R404A refrigerant. Recover the
refrigerant from both suction and liquid line access
ports prior to cutting into refrigeration lines.
• Cut the suction and liquid tubing with a tubing cutter,
leaving enough tubing to easily braze.
• Connect the line set.
• Cool braze joint with water immediately after brazing
to prevent heat migration.
Connect Suction and Liquid Lines
14
Part Number 000007282 10/13
Section 2 Installation Instructions
Important
Open suction and liquid line
shut-off valves
Important
Step 6 Leak Check The Refrigeration System
Leak check the new line set connections at the ice
machine head section, condensing unit and S trap as
well as all factory joints throughout the entire system.
Disconnect power to the remote condensing unit. Place
the rocker switch into the ON position. This allows the
low side and high side pressures to equalize for leak
checking. Place the rocker switch in the OFF position.
Connect power to the remote condensing unit and allow
system to pump down after leak checking is complete.
Step 7 Open The Valves Prior To Starting The Ice
Machine
A. Slowly backseat (open-turn counterclockwise)
the suction line shutoff valve.
B. Slowly backseat (open-turn counterclockwise)
the liquid line shutoff valve.
Verify O-ring in schrader valve caps are intact and
reinstall on shutoff valves to prevent re frigerant leakage .
Replace shutoff valve access caps and torque to the
following specifications.
Torque Values
Stem 18-20 ft. lbs. (24.4-27.1 Nm)
Caps 12-15 ft. lbs. (16.3-20.3 Nm)
Schrader Core 1.5-3 in. lbs. (0.17-0.34 Nm)
Step 8 Insulation Requirements
To prevent condensation the entire suction line must be
insulated. All insulation must be airtight and sealed at
both ends.
The following insulation requirements prevent
condensation at 90°F (32.2°C) ambient 90% Relative
Humidity. If higher humidity is expected, increase
insulation thickness.
The entire suction line set requires:
Suction Line Liquid Line
5/8 in. (16 mm) 3/8 in. (10 mm)
Min. Insulation
Thickness
1/2 in. (13 mm)
Suction Line
1/4 in. (7 mm)
Liquid Line
Open Valves
All refrigeration valve caps must be reinstalled to
prevent future refrigeration leaks.
To prevent condensation the entire suction line must
be insulated. All insulation must be airtight and
sealed at both ends.
The minimum requirements are for conditions at or
below 90% humidity and 90°F (32°C) ambient. When
higher humidity will be experienced, or local code
requires, insulation wall thickness will need to be
increased.
Part Number 000007282 10/13 15
Installation Instructions Section 2
Installation Check List
All Manitowoc ice machines are factory-operated and adjusted before shipment. Adjustments and maintenance
procedures outlined in this manual are the responsibility of the owner/operator and are not covered by the warranty.
Is the Ice Machine level?
Is the ice machine and adapter (when used )
secured to the dispenser?
Have all of the electrical and water
connections been made?
Has the supply voltage been tested and
checked against the rating on the nameplate?
Is there proper clearance aroun d th e ice
machine for air circulation?
Is the ice machine grounded and polarity
correct?
Has the ice machine been installed where
ambient temperatures will remain in the range
of 50° - 100°F (14.4° - 37.8°C)?
Has the ice machine been installed where the
incoming water temperature will remain in the
range of 50° - 90°F (14.4° - 32.2°C)?
Is there a separate drain for the water-cooled
condenser?
Is there a separate drain for the dispenser?
Is the ice making water turned on?
Are all electrical leads free from contact with
refrigeration lines and moving equipment?
Has the owner/operator been instructed
regarding maintenance and the use of
Manitowoc Cleaner and Sanitizer?
Has the owner/operator completed the
warranty registration card?
Has the ice machine and bin been sanitized?
Is the rocker switch set to ON (RN1000/
RN1200/RN1400 only)?
RN0400 Only
BEFORE TURNING POWER ON
1. Push down on float to force water out overflow tube and into evaporator drain pan.
2. Check that water drains freely from evaporator drain pan.
3. Lift float and check that float valve shuts off incoming water when raised.
AFTER TURNING POWER ON
1. Turn power to ice machine on and confirm that gearmotor, compressor and fan motor start immediately.
2. Check that ice begins to enter bin within approximately 10 minutes.
3. With ice machine running, check that float reservoir water level is approximately 3/8 in. (10 mm) below internal
overflow and adjust to this level (raised line on side of reservoir) if necessary.
4. After making ice for 10 minutes, put ice against ice level control stat cap tube and check that ice machine shuts down.
5. Warm ice level control stat with your fingers and check that ice machine restart s in approximately 20 minu tes. (Bin
must be calling for ice.)
16
Part Number 000007282 10/13
Section 2 Installation Instructions
Additional Checks for QuietQube Models
Is the lineset length, rise and drop within the
guidelines?
Are the suction and liquid line shut-off valves
open?
Is the line set routed properly?
Are both refrigeration lines to remote
condensing unit run so they do not lay in water
and are properly insulated?
Does the condenser fan motor(s) operate
properly after start-up?
Have all the refrigeration fittings and joints
been leak checked?
Has the condenser/condensing unit been
installed to prevent any roofing damage?
Have the refrigeration lines been insulated and
secured properly to prevent vibration?
Has the RCU remote condensing unit been
located where ambient temperatures will
remain in the range of -20° to 120°F (-29° to
48.9°C)?
Is a refrigeration oil trap (S-trap) installed if the
condenser is installed 21 to 35 fe et (6 to 11 m)
above the ice machine head?
Part Number 000007282 10/13 17
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