Dometic EIR600D User manual

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No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means
electronic, mechanical, photocopying,recording or otherwise without prior written consent by Dometic Marine. Every precaution has
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and omission. Neither is any liability assumed for damages resulting from the use of this product and information contained herein.
Eskimo Ice
INSTALLATION MANUAL FOR REMOTE ICE-MAKING SYSTEMS
For model:
• EIR600D
EIR600D Components
Condensing Unit Auger Unit
Control Panel
Dometic Marine Division
Rev. 20140401
L-2448B English

L-2448B ENGLISH
Table of Contents
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
WARNINGS AND NOTICES . . . . . . . . . . . . . . . . . . . . . . 1
ICE MAKING AND REFRIGERATION BASICS . . . . . . . . . . 1
How It Works . . . . . . . . . . . . . . . . . . . . . . . . . . 1
The Effect of Seawater and Fresh Water Tem-
peratures . . . . . . . . . . . . . . . . . . . . . . . . . . 2
The Effect of Ambient Air Temperature . . . 2
COMPONENTS OF THE ICE MAKER . . . . . . . . . . . . . . . 2
Condensing Unit . . . . . . . . . . . . . . . . . . . . . . . . 2
Auger Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Linesets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Storage Box . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Seawater System . . . . . . . . . . . . . . . . . . . . . . . 3
Freshwater Supply . . . . . . . . . . . . . . . . . . . . . . 3
Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . 3
Sight Glass/Moisture Indicator . . . . . . . . . . . . . 3
Quick-Connect Fittings (QC) . . . . . . . . . . . . . . . 3
Constant Pressure Valve (CPV) . . . . . . . . . . . . 3
INSTALLATION PROCEDURES . . . . . . . . . . . . . . . . . . 3
CHOOSING THE CORRECT EQUIPMENT VOLTAGE . . . . . 3
INSTALLING THE SYSTEM . . . . . . . . . . . . . . . . . . . . . . 3
Selecting the Condenser Site . . . . . . . . . . . . . . 3
Site Location Check List. . . . . . . . . . . . . . . 4
Mounting the Condensing Unit . . . . . . . . . . . . . 4
Installing Condensate Drainage . . . . . . . . . . . . 4
Selecting the Auger Site . . . . . . . . . . . . . . . . . . 4
Site Location Check List. . . . . . . . . . . . . . . 4
Mounting the Auger Unit . . . . . . . . . . . . . . . . . . 4
Installing Ice-Delivery Hose . . . . . . . . . . . . . . . 5
Planning the Route. . . . . . . . . . . . . . . . . . . 5
Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 5
Installing the Ice-Level Sensor . . . . . . . . . . . . . 6
Installing the Refrigerant Linesets . . . . . . . . . . 6
Installing the Feedwater System . . . . . . . . . . . . 6
Requirements . . . . . . . . . . . . . . . . . . . . . . . 7
Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . 7
Water Quality and Filters . . . . . . . . . . . . . . 7
Installing the Seawater Cooling System . . . . . . 7
Self-Draining System . . . . . . . . . . . . . . . . . 7
Thru-Hull Inlet Fitting . . . . . . . . . . . . . . . . . 8
Seacock . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Seawater Piping . . . . . . . . . . . . . . . . . . . . . 8
Strainer. . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Seawater Pump . . . . . . . . . . . . . . . . . . . . . 9
Connection to Ice Maker. . . . . . . . . . . . . . 10
Overboard Discharge . . . . . . . . . . . . . . . . 10
Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installing the Remote Digital Display . . . . . . . 10
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
START-UP CHECK LIST . . . . . . . . . . . . . . . . . . . . . . . 11
STARTING THE SYSTEM . . . . . . . . . . . . . . . . . . . . . . . 11
THE DIGITAL CONTROL . . . . . . . . . . . . . . . . . . . . . . . 11
System Shutdown . . . . . . . . . . . . . . . . . . . . . . 12
System Restart/Reset . . . . . . . . . . . . . . . . . . .12
SERVICING THE SYSTEM . . . . . . . . . . . . . . . . . . . . . . 13
REFRIGERANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
R-134a Tools . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Constant Pressure Valve (CPV) . . . . . . . . . . . 13
Quick Connect Fittings (QCs) . . . . . . . . . . . . . 13
Recharging the System . . . . . . . . . . . . . . . . . . 13
System Shutdown . . . . . . . . . . . . . . . . . . 13
Evacuate Refrigerant. . . . . . . . . . . . . . . . 13
Charging the System. . . . . . . . . . . . . . . . 14
Setting the CPV. . . . . . . . . . . . . . . . . . . . 14
OWNER MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . .14
SEAWATER SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . .14
FRESH WATER FILTER AND Y STRAINER . . . . . . . . . . 14
EVAPORATOR CLEANING . . . . . . . . . . . . . . . . . . . . . .14
AUGER MOTOR AND GEARBOX . . . . . . . . . . . . . . . . .15
COMPRESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
REFRIGERANT GAS . . . . . . . . . . . . . . . . . . . . . . . . . . 15
WATER RESERVOIR . . . . . . . . . . . . . . . . . . . . . . . . . . 15
FEEDWATER FILTER AND Y STRAINER . . . . . . . . . . . . 15
WINTERIZING THE SYSTEM . . . . . . . . . . . . . . . . . . . . 15
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . 15
TECHNICAL ASSISTANCE . . . . . . . . . . . . . . . . . . . . . 16
WARRANTY AGREEMENT . . . . . . . . . . . . . . . . . . . . . 16
SYSTEM CONNECTION AND WIRING DIAGRAMS . . 17
SYSTEM CONNECTION . . . . . . . . . . . . . . . . . . . . . . . . 17
EIR600D (115V/60HZ/1 & 230V/60HZ/1) . . . . . . . . 19
EIR600D (220V/50HZ/1) . . . . . . . . . . . . . . . . . . . . .20

Eskimo Ice Installation Manual - Remote System INTRODUCTION
L-2448B ENGLISH 1
INTRODUCTION
WARNINGS AND NOTICES
ICE MAKING AND REFRIGERATION BASICS
The evaporator in the ice maker evaporates liquid refrigerant to remove heat from fresh water in order to freeze it. As the water
freezes onto the wall of the evaporator shell, it is scraped off by the auger and pushed to the ice-collection box.
HOW ITWORKS
The basic principle of an ice machine system is that a liquid refrigerant absorbs heat as it turns into a gaseous state
(evaporates) and releases heat as it turns back into a liquid state (condenses). The system consists of five main components:
•Evaporator - Absorbs heat from the fresh water in the evaporator causing the fresh water to freeze..
•Auger - Scrapes the frozen fresh water from the sides of the evaporator and extrudes it into the discharge hose.
•Condenser - Releases heat into the seawater and turns the refrigerant gas back into a liquid.
•Compressor - Drives the refrigerant through the loop.
•Metering Device - Meters the flow of refrigerant to the evaporator.
The ice maker’s refrigerant compound has a very low boiling point. It flows in a closed loop between an evaporator and a
condenser, alternately absorbing and releasing heat. This process removes the heat from the fresh water in the evaporator/
auger assembly and causes the fresh water to freeze on the inside of the evaporator wall. The heat absorbed by the refrigerant
is transferred to the seawater.
A water pump circulates seawater through the inner tube in the condenser coil which cools the refrigerant in the outer tube and
condenses it from a gas into a liquid. The heat from the refrigerant is exchanged to the seawater and discharged overboard.
The liquid refrigerant is then pumped through the evaporator coil and the cycle repeats.
DANGER
This equipment is not ignition protected per CFR 183.410 and may not be installed in areas that may be exposed to
flammable gas.
DANGER
The equipment referenced in this manual operates on 115 or 230 volts AC. Such voltages can be lethal, therefore
proper care must be taking during installation, operation, and servicing to prevent injury or loss of life.
DANGER
The equipment referenced in this manual operates with compressed refrigerant at high pressures. Proper care must
be taken during installation, operation, and servicing to prevent injury or loss of life due to improper procedures.
WARNING
Never install the unit in the bow of a boat. It must be installed on the transom, in the aft, or in a machinery space that
does not require ignition protection that is as far aft of midship as possible.
WARNING
This manual contains essential safety information concerning the safe and proper installation, operation, and
maintenance of your ice making system. It is very important that you read and understand the contents of this manual
thoroughly before installing or using the equipment. You should keep this manual on your boat for future reference.
Failure to follow Dometic approved installation, start-up, operation, and troubleshooting procedures will void the
warranty. If there are any statements in this manual that you do not understand, contact your local dealer for
assistance or the Dometic Marine Service Department:
•Phone: [phone] or [phone] (8AM - 5PM US Eastern Time)
•Fax: [phone] or [phone]
•Email: [email protected]
NOTICE
Some equipment may be shipped with specific installation sheets or wiring diagrams that may supercede the
information located in this manual. Dometic reserves the right to update or change any information located herein at
any time and without prior notice.
NOTICE
Your ice-making system uses the environmentally safe refrigerant R-134a. Federal law forbids the intentional release
of any refrigerant gas into the environment. Make certain that any field service is performed by a specialist with the
proper equipment to prevent loss of refrigerant during servicing.

INTRODUCTION Eskimo Ice Installation Manual - Remote System
2L-2448B ENGLISH
The Effect of Seawater and Fresh Water Temperatures
Seawater and freshwater temperatures affect the ice machine’s efficiency and capacity. The system is most efficient when the
seawater and fresh water temperatures are 55-80°F (13-27°C). The ideal temperature for both is 70°F (21.1°C).
High Temperatures - As water temperatures approach 90°F (32°C) and above, the water’s ability to absorb heat diminishes, so
the capacity of the system decreases. Also, when seawater temperature increases above 90°F (32°C), the system could sustain
a high-pressure shutdown to protect the compressor.
Low Temperatures - As water temperatures approach 40°F (4.4°C) and below, the water’s ability to provide heat exchange
diminishes, so the capacity of the system decreases. Also, as the water temperature decreases, the system could sustain a low-
pressure shutdown to protect the compressor.
The Effect of Ambient Air Temperature
The ambient air temperature affects the ice machine’s efficiency and capacity, but not as significantly as the water
temperatures. The system is most efficient when the ambient air temperature is 55-80°F (13-27°C). At temperatures above and
below this range, ice production will decrease.
COMPONENTS OF THE ICE MAKER
CONDENSING UNIT
The condensing unit has an R-134a compressor, seawater-cooled condenser, a receiver/filter/drier, an accumulator, and a sight
glass/moisture indicator. The condensing unit also has the control box attached, which is remote-mountable up to 7 feet (2.2m)
away with plug-and-play electrical connections for the electrical harness to the auger unit and the optional remote display.
AUGER UNIT
The auger unit contains the evaporator barrel, auger rotor, gearbox, motor, water reservoir, and expansion device. The
freshwater delivered to it is converted to ice which exits the system via an ice-delivery hose routed to a storage box up to 30 feet
(9m) away.The unit comes with quick-connect refrigerant fittings and is pre-charged with refrigerant from the factory. The unit
has plug-and-play electrical connections for the ice-level sensor and the electrical harness to the condensing unit.
CONTROL BOX
The condensing unit has an electrical control box with digital display that can be mounted on the unit or remotely mounted up to
7’ (2.2m) away.
The control box (Figure 7, page 12) contains the system function switches, digital display, and system indicator lights. It lets you
control all system operations and provides visual indications of system activity, such as whether the system is running or has a
fault. If a fault condition is detected, the system shuts down automatically. The control panel lets you restart the system after a
sustained fault. See the “The Digital Control” on page 11 for further operating instructions.
LINESETS
Linesets, generally made of copper tubing, connect the auger unit to the condensing unit. The liquid line is 1/4" (6.4mm) copper
tubing and the suction line is 1/2" (38mm) copper tubing. The suction line comes pre-insulated to prevent frost. Flexible tube
sections are available, but are only recommended for installations where one part moves in relation to another, such as a lifting
deck.
STORAGE BOX
The storage box is the destination point where the ice will accummulate via the ice-delivery hose. An ice-level sensor installed in
the storage box halts ice production when the box is full.
The storage box should be able to hold water and have at least 2" (51mm) of insulation to keep the ice frozen as long as
possible. It is helpful to install a drain in the box at the end opposite from the ice input. To improve ice-production performance,
keep the drain plugged to prevent cold air and cold water from escaping the storage box.
CAUTION
Extreme care should be taken in operating any unit below seawater temperatures of 40°F (4.4°C). The seawater could
freeze in the condenser tubing, possibly causing it to burst, which is not covered by the warranty.
CAUTION
Flexible tubes are prone to fatigue and should only be used where needed for occasional service access, not in areas
of continuous access.

Eskimo Ice Installation Manual - Remote System INSTALLATION PROCEDURES
L-2448B ENGLISH 3
SEAWATER SYSTEM
Seawater is pumped into the ice-making unit to efficiently cool the hot refrigerant via a cupronickel coaxial tube design. The
condensing unit may be connected to its own single-station pump or to a larger, multi-station pump via a pump relay box.
The seawater system (Figure 3, page 8) consists of a thru-hull fitting, seacock, strainer, seawater pump, seawater hose, and
overboard discharge.
FRESHWATER SUPPLY
Use the 1/4" SAE male flare fitting on the auger unit to supply freshwater for ice making. Provide water with pressure of at least
15 PSI. An in-line water filter (included in kit) is mandatory to comply with Dometic Warranty Regulations, to help prevent
clogging of the needle valve in the water reservoir, and to help keep the auger walls from fouling with mineral deposits which will
cause premature failure of water seals and bearings. See “Fresh Water Filter and Y Strainer” on page 14 for maintenance
instructions.
REFRIGERANT CHARGE
The condensing unit, the auger unit, and the linesets are all pre-charged with the correct amount of R-134a refrigerant. No
charge adjustment should be necessary upon installation, but always confirm that operating pressures and superheat are within
the correct operating range. If service is required, see data plate for correct charge amount.
SIGHT GLASS/MOISTURE INDICATOR
The sight glass on the condensing unit provides visual moisture indication and is only functional when refrigerant is flowing
through the sight glass for at least 10 minutes. Sight glass should not be used for refrigerant charging or status.
QUICK-CONNECT FITTINGS (QC)
The quick-connect fittings allow all parts of the system to be factory evacuated and precharged with refrigerant. They also
provide easy and quick installation in the field, and are polarized so they can not be hooked up incorrectly. The fittings can be
reused if the unit is ever relocated. Note: Fittings should be lubricated with 134a-compatible oil to ensure a proper seal.
CONSTANT PRESSURE VALVE (CPV)
The CPV is used as the expansion valve of the refrigerant system. It allows high-pressure liquid to become low-pressure liquid
and start the refrigeration process. The simple and reliable CPV provides a constant system pressure over a wide range of
ambient and seawater temperatures. The valve pressure is set at the factory and should not require any field adjustments. On
the rare occasion that an adjustment is necessary, the system must be correctly charged and operating for at least 20 minutes
at an ice-making temperature before any adjustments are made. Recommended pressure is 6 to 7.5 PSI (6.8 PSI is ideal) as
determined by an accurate gauge capable of reading low-pressures. Misadjustment of the valve can cause reduced ice
production, damage to components, and voiding of the warranty. If under warranty, call for authorization before adjusting CPV,
otherwise warranty will be voided.
INSTALLATION PROCEDURES
This section covers the installation procedures for your ice-making system. Read the manual completely before attempting
to install any equipment.
CHOOSING THE CORRECT EQUIPMENT VOLTAGE
Know the frequency and voltage provided where your ice-making system will be used and select the appropriate 60 Hz or 50 Hz
model. Do not operate a 60Hz unit on 50Hz power or a 50Hz unit on 60Hz power, as this will cause damage and void the
warranty.
The voltage rating of a unit is a nominal rating. The voltage in a given location may be higher or lower by as much as 10% and
the system will still operate correctly. For example, in a 60 Hz environment you may see 110 VAC to 120 VAC, or 208 VAC to
240 VAC. In a 50 Hz environment common voltages range from 220 VAC to 240 VAC.
INSTALLING THE SYSTEM
SELECTING THE CONDENSER SITE
Never install the unit in the bow of the boat. Dometic ice-making units are designed to be installed in any convenient location
on the transom, in the aft, or in a machinery space that does not require ignition protection that is as far aft of midship as
possible. The condenser can be located in living areas if necessary. Some considerations:
• This equipment is not ignition protected per CFR 183.410 and may not be installed in areas that may be
exposed to flammable gas.

INSTALLATION PROCEDURES Eskimo Ice Installation Manual - Remote System
4L-2448B ENGLISH
• The unit will produce condensation, so the drip pan is necessary.
• The unit is water cooled and does not need direct ventallation, but do not install in a sealed space.
• The space around the unit may be insulated to reduce noise if necessary.
Site Location Check List
• Location is aft of midship. Never install the unit in the bow of the boat.
• Location is not exposed to flammable gas.
• Location provides adequate space for access to refrigerant, seawater, and electrical connections.
• Location provides accessibility for service and maintenance.
• Location is away from direct spray, from engine air intakes, and from water washdown.
• Mounting space is a flat, horizontal surface.
• Maximum refrigerant-tubing run is 50 feet (15.2m).
MOUNTING THE CONDENSING UNIT
1. Do not remove any covers, caps, or fittings that may expose any wiring or refrigerant until you are ready for those
steps of the installation.
On a flat, horizontal surface, orient the unit so the refrigerant, seawater, and electrical connections are accessible. Use
screws or bolts through the holes in the four corners of the pan to secure it. You can remove and turn the pan to better
orient the drain stub.
2. The auger has an elbow where the ice exits. The elbow rotates 360 degrees to let the ice-discharge hose go in any
direction toward the ice box. Make sure the elbow is oriented upward so water can re-enter the auger barrel instead of
flowing to the ice box. If you decide to remotely mount the control box, be sure it is away from direct spray, from engine
air intakes, and from water washdown.
3. If pump wires need to be extended by butt connections, make sure they are tightly crimped and heat shrunk.
4. AC power source must be installed and grounded/bonded in accordance with ABYC standards.
5. Connect control wires to terminal strip with ring terminals.
INSTALLING CONDENSATE DRAINAGE
The condensate drain pan is 2.0” (51mm) high with two drain locations. During conditions of high humidity, condensate may be
produced at a rate of approximately one-half gallon (1.9 liter) per hour. With this in mind, it is important to route condensate
drains downward to a sump pump. It is not recommended to route condensate drains to the bilge.
After the condensate drain installation is complete, test the installation by pouring one quart (liter) of water into the pan and
checking for good flow.
SELECTING THE AUGER SITE
The auger should be installed close to the ice-storage box. This minimizes the amount of tubing between the box and auger,
and minimizes the time required for ice to enter the box. It also reduces the amount of melting that takes place in the hose and
reduces the chance for ice clogging.
Site Location Check List
• Choose a location as close to the ice-storage box as possible.
• Orient the unit so refrigerant, feedwater, and electrical connections are accessible.
• Orient the unit so the front and/or top cover may be removed for service and maintenance.
• Choose a substantial vertical surface, or a flat, horizontal surface.
• Do not place in an area of direct salt spray.
MOUNTING THE AUGER UNIT
1. Do not remove any covers, caps, or fittings that may expose any wiring or refrigerant until you are ready for those
steps of the installation.
2. Securely fasten to a sturdy vertical wall using the keyhole slots in the rear of the unit, or secure to a flat, horizontal
surface using the tabs provided on the bottom of the unit.

Eskimo Ice Installation Manual - Remote System INSTALLATION PROCEDURES
L-2448B ENGLISH 5
3. The auger unit has an elbow on the top-right side where the ice exits. The elbow rotates 360 degrees to accommodate
any direction of the hose to the ice box. Make sure the elbow is oriented upward so water can re-enter the auger barrel
instead of flowing to the ice box.
INSTALLING ICE-DELIVERY HOSE
Planning the Route
The maximum length of the ice-delivery hose is 30 feet (9m).
The best hose routing provides a level but slightly upward rise from the auger to the box, with very few bends. No bend should
be tighter than a radius of 18" (458mm). Refer to Figure 1 below to see:
•Best Routing - A continuous uphill route of travel from the auger unit.
•Good Routing - A continuous route of travel, with only one high spot.
•Acceptable Routing - A route of travel which includes one low spot and two high spots.
Figure 1: Routing of Ice-Delivery Hose
Procedure
1. Install the proper thru-hull in the ice box using the supplied fitting. The thru-hull must be large enough for the 1-1/4"
(32mm) ice-delivery hose, and its location should facilitate the best hose route from the auger (as described above and
shown in Figure 1, page 5).
2. Insulate the full length of hose with 1-5/8" (42mm) ID, 1/2" (13mm) thick wall insul-tube, minimum.
3. If needed, drill a 1/4" (6.4mm) air-vent hole where shown in Figure 1, page 5 for your type of hose route. Do not block
the air vent with insulation.
4. If there are any dips in the hose you may need to drill a 1/4" (6.4mm) hole in the hose for water relief. While the water
will not prevent ice flow, in low ambient conditions this water could freeze which would prevent ice delivery. Do not
block the hole with insulation.
5. Secure each hose end with double hose clamps so the hose will not get pulled out. In addition, PVC glue may also be
used at the thru-hull end.
6. Securely strap hose to bulkhead, keeping in mind that the hose will be much heavier once filled with ice. Be careful not
to kink, flatten, oval or crush hose, because any obstructions will prevent free flow of ice.

INSTALLATION PROCEDURES Eskimo Ice Installation Manual - Remote System
6L-2448B ENGLISH
INSTALLING THE ICE-LEVEL SENSOR
To prevent overflow, this sensor stops ice production when the ice in the storage box reaches the level of the sensor. Use
Figure 2 below to determine placement for the ice-level sensor at the storage box location.
1. The sensor must be located below and to the side of the ice-delivery hole. Drill a 23/32" (19mm) hole for sensor.
2. Use the 2 lock nuts provided to secure sensor into the hole.
3. Use marine-grade sealant around the hole if desired. (Remember that the unit may have to be removed at some time.)
4. Route the cable to the auger unit and plug the end into the matching socket.
Figure 2: Location of Ice-Level Sensor (front view)
INSTALLING THE REFRIGERANT LINESETS
The linesets, auger, and condensing unit all have quick-connect (QC) fittings. QC fittings allow connection and disconnection of
the system with no loss of refrigerant.
1. Refrigerant lines may run uphill, downhill, or sloping as necessary. They can have bends, but avoid sharp bends that
could kink the tubing.
2. Route the lines directly to each unit, and approach the QC in a straight line.
3. Do not try to screw fittings together that are incorrectly mated, as this will destroy the fittings. Connect the fittings with
this method:
• Lubricate the male fitting face and threads lightly with refrigeration-grade oil.
• Hand-thread the nut of the female QC onto the male-threaded QC by rotating the union nut clockwise.
• Tighten the female thread connection with a wrench while holding the opposite coupling with a wrench. Exception:
If the male QC is held by a metal bracket at each unit, it does not need a wrench on it.
• Tighten each assembly to 35 foot-pounds with a torque wrench. If you don’t have a torque wrench, tighten each
assembly until the fittings “bottom out,” then use a marker to make a line on each coupling half hex. Turn with
wrenches an additional 1/6 to 1/4 turn to completely seal the assembly.
WARNING: If the steps above are not followed and the fittings are cross-threaded together, the fittings will be
destroyed and the warranty voided.
4. Once connections are made, fully insulate the suction line from unit to unit.
INSTALLING THE FEEDWATER SYSTEM
Feedwater for the auger unit should be fresh water supplied by the boat’s potable water system. The water reservoir has a float
switch to ensure the unit does not operate without a water supply.

Eskimo Ice Installation Manual - Remote System INSTALLATION PROCEDURES
L-2448B ENGLISH 7
Requirements
• Supplied feedwater must have a pressure of at least 15 PSI.
• The water system must be able to supply at least 4 GPH when the ice maker is operating.
• Install the in-line filter (supplied in kit) just prior to the auger unit to remove sediment which may clog the needle valve
in the water reservoir.
• Dometic recommends installing a shut-off valve in the feedwater line between the source and the filter to facilitate filter
changes.
Procedure
1. Run copper tubing or equivalent from the freshwater source to the in-line water filter.
2. Run copper tubing or equivalent from the water filter to the auger water input, and connect with the supplied 1/4" SAE
male flare connection on the unit.
3. Ensure there are no leaks in the field-installed portion of the system.
Water Quality and Filters
No water from a municipality is “pure” feedwater, but water from a vessel’s onboard water maker comes close. The feedwater
problem is that water contains suspended and dissolved feedwater solids. Pure water freezes first, leaving the feedwater solids
to increase in concentration in the unfrozen feedwater. Solids also bond to the evaporator wall during feedwater freezing,
forming scale. Eventually, built-up scale will shorten machine life.
A filter must always be used, preferably one supplied by Dometic for use with ice makers. Replace the filter at least twice yearly,
or more often if the machine is used frequently. While filters help clean the water, a yearly cleaning of the evaporator barrel is
required. See “Evaporator Cleaning” on page 14 of the “OWNER MAINTENANCE” section.
Using saltwater to make ice is not approved by Dometic. Saltwater is very corrosive, and it contains many more dissolved and
suspended solids than freshwater. If you want a brine solution for your catch, we suggest sprinkling salt over the ice in the
storage box. USE OF SALTWATER AS FEEDWATER IN ANY DOMETIC ICE MAKER WILL CAUSE SEVERE DAMAGE AND
VOID THE WARRANTY!
INSTALLING THE SEAWATER COOLING SYSTEM
Self-Draining System
A poorly plumbed seawater system is the most common installation problem. When water flow is lost, not only will the ice maker
cease to produce ice, but the pump could be damaged from running without water flow.
When using a centrifugal seawater pump, it is imperative that the seawater piping be routed continually uphill from the thru-hull
to the condenser, then smoothly up or down to the overboard discharge without any dips or loops, and with only one high point
in the system. This type of routing is called self-draining because all water will drain out of the piping if the boat is taken out of
the water.
If air gets into the system, which can happen in heavy seas or with a sharp turn, it can become trapped in the pump. Because
centrifugal pumps cannot pump air, water flow is lost. A self-draining system, however, allows air in the piping to rise naturally
through the pump and be expelled. It also makes winterizing the system much easier. Figure 3, page 8 shows a properly
plumbed system and some common mistakes.
WARNING
Use of saltwater as feedwater will damage auger components and evaporator barrel and will void the warranty.
WARNING
Failure to install and use a water filter will void the warranty.

INSTALLATION PROCEDURES Eskimo Ice Installation Manual - Remote System
8L-2448B ENGLISH
Figure 3: Seawater Piping Recommendations
Thru-Hull Inlet Fitting
A separate thru-hull fitting must be installed for each seawater pump. Do not attempt to draw water from the thru-hull fitting of an
engine, generator, or other device.
Install a scoop-type thru-hull fitting:
1. Drill a properly sized hole for the thru-hull fitting as far below the water line and as close to the keel as possible.
2. Make sure the scoop of the thru-hull fitting faces the bow.
3. Bed the scoop with marine sealant designed for underwater use, and tighten the nut onto the thru-hull to secure it.
Seacock
The seacock must be accessible and easy to close in case of emergency or to clean the strainer.
1. Install a full-flow seacock directly onto the thru-hull fitting.
2. Use threaded-seal tape to seal the threads.
Seawater Piping
• Only use reinforced marine-grade hose or other suitable piping (PVC, CPVC, cupronickel, or stainless steel).
• Double clamp all hose connections.
• Use only plastic, bronze, or stainless steel fittings (do not use brass).
• Avoid loops or dips in all hose runs.
• Make sure enough hose is used to allow for future removal of components.
• Use the correct size hose, fittings, and components: 5/8” seawater hose, 3/4” inlet. Note that the pump inlet piping
(including thru-hull and strainer) may need to be larger than the outlet pipe size. Do not use pump connections to
determine hose size.
• The "pump inlet" recommended pipe size includes all fittings and hose up to the pump connection (thru-hull, seacock,
strainer, hose, manifold). The "pump discharge" recommended pipe size includes all fittings and hose from the pump
discharge up to the overboard discharge, and should be a minimum of 5/8”.