icetro IU-0090-AN User manual

September 16, 2022
Read this manual carefully before
using the product. Keep the manual in
a safe place after reading it, for
future reference.
User’s Manual
•Where the supply voltage is different.
•This product is designed for indoor
use only.
•The appearance, design, color, and
parts of the product are subject to
change without notice.
IU-0090-AN
IU-0090-ANP
IU-0090-ANA
IU-0090-ANAP
ICE MAKER

Table of Contents
1. Overview ----------------------------------------------------- 3
2. Unpacking ---------------------------------------------------- 4
3. Installation Specifications ----------------------------------------- 6
4. Gravity Drain Model --------------------------------------------- 8
5. Drain Pump Model ---------------------------------------------- 9
6. Installation of the Product ---------------------------------------- 10
7. Guide to Operating the Ice Maker ---------------------------------- 14
8. Maintenance Schedule -------------------------------------------18
9. Specifications ------------------------------------------------- 19
10. Error Type ----------------------------------------------------20
11. Circuit Diagram ------------------------------------------------ 21
12. Troubleshooting Guide ------------------------------------------ 22
2

1. Overview
The functions and specifications stated in this manual and on the
website may be changed at anytime without prior notice.
The manual has WARNING and CAUTION marks. The
information described in the boxes is important for the safe and
efficient installation of the ice maker. Two types of cases may be
found during installation.
If the instructions are not observed, a situation that may result in
minor injury and/or damage to the product may be created.
If the instructions are not observed, serious injury or death may
result.
Thank you for purchasing the Ice Maker(Drain pump is optional).
The product is a built-in type of ice maker and is designed for use
at home. The product produces transparent ice of the highest
quality.
Proper installation of the ice maker is of the utmost importance.
The product should be installed by a qualified technician or
installer.
Before installing the product, read the user’s installation manual in
full. The manual contains detailed instructions to be observed
during installation. If you read this manual carefully, you will be
able to install the product safely, without any problems or difficulty.
If you have any questions about its installation.
Review the warranty card included in this manual and, if service is
required, refer to the warranty card.
Important Information : When designing or manufacturing the ice
maker, safety matters and functions are accorded the utmost
importance. This ice maker is designed according to the ETL
Safety/UL standard. The company does not bear any responsibility
or liability for products that are subsequently modified or installed
with parts not supplied or approved, or not used in the correct
way. The company may modify or improve the design at anytime.
The specifications and design may be changed without prior
notice.
3
CAUTION
!
WARNING
!

2. Unpacking
After removing the packing material, check the appearance of
the ice maker for possible defects or irregularity.
If the product shows any irregularity in its appearance, contact
your local distributor.
All the packing material (straps, box, Styrofoam, and wood,
etc) should not be left within reach of children and should be
disposed of.
For safety, the product should be installed and used with
caution and in accordance with the User’s Manual.
Incorrect installation or careless use of the product may
damage or injure the environment, humans, animals, and/or
materials and property. The manufacturer does not bear any
responsibility for the aforesaid damage or injury.
This ice maker performs best at an ambient temperature of
50~75℉ and water temperature of 50℉.
The ice maker should be installed in a controlled indoor
environment, but it should NOT be installed near a heat source
such as a heater, stove, or dish washer.
Outside air
The ice maker takes in ambient air through the left portion of
the kick plate/grill and expels hot air through the right portion
of the same kick plate/grill. If any material is placed in front of
the kick plate/grill, the air flow will be restricted, resulting in
reduced performance and, in the worst case, malfunction. The
ice maker should be operated within an ambient temperature
range of 50℉ to 100℉.
4
Photo. 1

Water supply
The ice maker requires a continuous supply of potable water at a
pressure of 20-80psi
Water quality
There is no such thing as “perfectly pure” water. All kinds of
water, including tap water, contains impurities. Rainwater absorbs
impurities from the atmosphere and/or when it passes through soil.
Some impurities consist of solid particles called suspended solids
and are filtered through micro filters. Any remaining impurities,
which cannot be filtered because they are chemically combined
with water molecules, are called dissolved solids.
The mineral content of the ice produced by this product is reduced
compared to the content in the water before conversion into ice.
Water containing a low level of impurities is rapidly frozen. The
reason for this is that the impurities elevate the temperature of
water. Through such an action, most of the impurities condensed
in the water-tank of the ice maker form what’s known as scale.
This icemaker reduces the mineral level by circulating water during
the harvest cycle (the excessive quantity is removed through an
outlet tube).
Each cycle requires about 0.64 quarter (0.6ℓ) of water. For each
quarter, about 0.5 quarter is used in rinsing the water tank and the
remainder is removed through the outlet pipe.
In this process, some impurities unavoidably remain and may
accumulate on the internal parts of the ice maker, forming
abnormal ice pieces. If a large quantity of mineral scale
accumulates, the lifespan of the ice maker may be reduced.
For best operation of the ice maker, impurities and minerals should
be removed by washing with ice machine cleaner periodically. The
method of cleaning the ice maker is described on page 18.
In general, it is best to use filtered water. Water filtration may
remove not only bad odor but also scale.
Water softener is not recommended because it exchanges
minerals. If the hardness of the water is very high, using a water
softener may lead to opaque pieces of ice.
If you have any questions about the purity of your water, contact a
water treatment expert in your area.
This product was thoroughly cleaned at the factory. However, it is
advised that you check the cleanliness of the machine before use
and maintain its cleanliness during use.
5

3. Installation Instructions
Space requirements
When installing the ice maker, check that the electric power, and
piping position are correct. Refer to the installation specifications
and drawings shown on pages 7 and 8. Figures 4, 5, 6 and 7
show the entire dimensions of the product.
This product comes standard with a gravity drain connection that
requires a drain line to be run from the drain fitting at the back of
the product to appropriate water drain. The optional drain pump
can be installed to pump water to a higher drainage point, such
as a neighboring sink. Refer to the specifications shown on
pages 7 and 8.
Important Information: If the ice maker is installed in a corner,
the door may be hinged on the opposite side of the machine,
thereby avoiding any interference with a wall.
Important Information: The bottom of the ice maker should be
leveled
Important Information: When moving the product with a hand
truck or dolly, place the dolly at the side of the product and shut
or fix the door tightly to avoid possible opening during movement.
The finished bottom should be protected with a suitable material
to avoid possible damage when moving the product.
Requirements for power supply
120VAC, 60Hz, 15-amp circuit breaker and electric power are
required. Additionally, the provided 3-prong power cord should
be inserted into a suitable 3-prong, grounded outlet.
Important Information: A Ground Fault Circuit Interrupter (GFCI)
is not recommended because the operation of the product may
be stopped.
Important Information: The provisions of the National Electric
Code as well as any local laws and instructions should be
observed when installing the product.
Do not use extension codes or 2-prong adapters. The product
should be properly grounded. Do not cut the grounding terminal
off the 3-prong plug.
6
CAUTION
!
WARNING
!
Fig. 1 Front View
Fig. 2 Side View
Fig. 3 Top View

Plumbing Requirements
Connect a 1/4" water line to the water supply.
Install a shutoff valve between the potable water supply and the
product so that the user can operate the valve. Do not install
the shutoff valve at the back of the product.
Do not use a self-piercing valve. If the water has a high mineral
content, a water filter will be required.
The water pressure should be maintained at a level between
20psi and 80psi. The power supply, water line and drain line
should satisfy all the provisions under local laws and
regulations. For instruction on how to run the water line, refer to
the installation specifications and drawings on pages 7 and 8.
Important Information: This product is designed for use in a
“built in” application, but it may be required to move the
icemaker forward for service. Therefore, do not install anything
in front, above or below the product which may act as an
obstacle when moving the product.
When leveling the bottom of the ice maker, place shims
equivalent to the thickness of the bottom under the product to
keep the ice maker and bottom horizontal. The lateral side
should have at least 1/6” of space for projection of the screw
head.
Installation on a slab: When using the model with a built-in
drain pump, the drain pump may pump the water up to about
8ft in height.
The ability to pump the water will be affected by the piping
used to do so.
Important Information: Piping should be carried out in
accordance with all the provisions laid out under local laws and
regulations.
7

4. Gravity Drain Model
The drain line should drop 1/4“ for every foot.
A standpipe fitted with a trap at the lower part may be used
as a drainpipe.
Important Information: Installation of an incorrect drain line
may cause the ice in the ice bin to melt rapidly.
1) Position the ice maker at the front of the opening of
the installation location.
2) Install the water inlet pipe (1/4" diameter copper pipe)
and connect to the water supply valve.
3) Run the drain line from the ice maker to the drainpipe.
If the horizontal distance is 5' (1.5m) or longer, the drain
line should be secured to the wall to the rear of the product.
4) Insert the provided plug into the outlet.
5) Connect the water inlet line to the water-supply valve of
the product.
6) Cut the drain tube to the required length.
7) Connect to the drain with a 3/4“ FPT (NPT) fitting.
8) Turn on the water supply and check for any leaks.
9) Level the ice maker by adjusting the leveling legs.
8
Fig. 4 Top View
Fig. 5 Front View
W ate r Filter
S h ut- O ff V alve
M IN . 15 "(381)
24"(61 0)
0.16 (4) 0.1 6(4)
D rain Tub e
W ate r Inlet T ub e
Lo cate d rain
w ith in 2" D IA .
A rea 2 3" b ac k fro m
fro nt o f unit
Fig. 6 Rear View

5. Drain Pump Model
1) Position the ice maker at the front of the opening of
installation location.
2) Install the water inlet line (1/4" diameter copper pipe) and
connect the water supply valve.
3) Connect the drain line from the ice maker to the drainpipe.
Important Information: An air gap may be required between the
drain line and the drainpipe, under the provision of local laws
and regulations. Refer to the drawing below.
5) If the electric outlet is at the back of the product, insert the
provided plug into the electric outlet.
6) Install the product so that the front of the product is facing
forwards.
7) Connect the water inlet line to the water-supply.
8) Connect the 5/8” drain hose to the drainpipe at the back of
the product using a hose clamp. If required, immerse the drain
hose in warm water before connecting it to the fitting.
9) Turn on the water supply and check for leaks.
10) Pour 3 quarters of the water into the ice bin. The drain
pump should activate and pump the water upwards. Check the
drain pump for popper operation and leaks.
11) Turn the switch to the “ICE" position. The compressor
starts working 3-5 minutes.
12) Pour 3 quarters of water into the ice bin and block the
drain tube while the drain pump is operating. At this time,
check whether the operation has stopped.
15) Adjust the leveling legs.
Important Information: Plumbing should be carried out in
accordance with all the provisions laid out under local laws
and regulations.
9
Drain pump kit (Optional)
You may order the ice maker with or
without a drain pump. In the case of the
model with no drain pump, water is drained
by gravity.
However, it is possible to install a drain
pump kit on the gravity drainpipe model if
you wish convert the model to a drain pump
model.
You may obtain the necessary parts for
conversion from your local distributor.
A detailed description of installation is
included in the kit.
Fig. 8 Front View
Fig. 7 Top View
S h ut- O ff V alve
W ater Filter
W ater In let T ub e
D rain Tub e
A ir G ap D evic e
24"(610)
M IN . 15"(381 )
0.16(4) 0.16(4)
M IN . 34"(863.6)

6. Installation of the Product
Important Information: Turn on the water supply and check
for any leaks at the connection.
The user does not need to fill the container with water. The
first batch of ice should be discarded. Ice production
requires 1-2 hours.
Leveling legs
Turn the legs counterclockwise to raise the product, or
clockwise to lower it.
Do not cover the kick plate/grill.
The ice maker is ventilated through the front ventilation
panel. A decoration door may be installed on the front, but
the ventilation holes of the kick plate/grill should not be
blocked.
The kick plate/grill may be painted in another color. Follow
the simplified steps outlined below.
①Smooth the surface using fine sandpaper.
②Scrub the surface until it is clean and dry using alcohol.
③Use a machinery or industrial oil base or gloss enamel
paint.
10
CAUTION
!
Fig. 9 Joint of air hose
Drain pump