Atosa SD320P User manual

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INSTRUCTION MANUAL
For Flat Top Display Freezer
SD320P SD420P
SD520P SD620P
Please read this user’s manual thoroughly before using.
Keep this manual handy for further reference.

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Warranty Information
One YEAR WARRANTY
All claims for parts or labor must be made directly through Atosa. All claims must include: model number of the unit.
the serial number. proof of purchase, date of
installation. and all pertinent information supporting the alleged defect. In case of compressor replacement under
warranty. either compressor or compressor tag must be returned to Atosa along with above listed information. Failure
to comply with warranty policies will result in voiding claims.
One Year Parts & Labor Warranty
Atosa warrants all new refrigerated components. such as the cabinet and all parts, to be free from defects in materials
or workmanship. Atosa's obligation under this
warranty is limited to a period of one (1) years from the date of original installation or 15 months after shipment date
from Atosa. whichever occurs first. All parts covered under this warranty that are defective within one(1) years of
original installation or fifteen (15) months after shipment date from manufacturer, whichever occurs first, are
limited to repair or replacement (including labor charges, of defective parts or assemblies) The labor warranty shall
include standard straight time labor charges only and reasonable travel time, as determined by Atosa.
Additional Four Year Compressor Warranty
In addition to the one(1) Year warranty stated above. Atosa warrants its sealed compressor to be free from defects in
both material and workmanship under normal and proper use and maintenance service for a period of four (4)
additional years from the date of original installation,but not to exceed five (5) years. Compressors that have been
determined to be defective from Atosa within this extended period will be either repaired or replaced with a
compressor or compressor parts of similar design and capacity according to Atosa's discretion . The four (4) year
extended compressor warranty applies only to sealed parts of the compressor and does not apply to any other parts
or components. This includes. the cabinet, paint finish, temperature control, refrigerant, metering device, motor
starting equipment, fan assembly and other electrical components, etc.
Compressor Warranty
The five-year compressor warranty detailed above will be void if the following procedure is not carefully adhered to:
1 .This system contains refrigerant and lubricant. The lubricant has rapid moisture absorbing qualities.
2.Drier replacement is very important and must be changed when a system is opened for servicing.
3.Micron level vacuums must be achieved to insure low moisture levels in the System.
4.Compressor must be obtained through Atosa unless otherwise specified in writing through Atosa's warranty
department.
What is Not Covered by This Warranty
Atosa's sole obligation under this warranty is limited to either repair or replacement of parts, subject to the additional
limitations below This warranty neither assumes nor authorizes any person to assume obligations other than those
expressly covered by this warranty.
NO CONSEQUENTIAL DAMAGES: ATOSA IS NOT RESPONSIBLE FOR ECONOMIC LOSS; PROFIT LOSS; OR SPECIAL. IN
DIRECT, OR CONSEQUENTIAL DAMAGES, INCLUDING WITHOUT LIMITATION, LOSSES. OR DAMAGES ARISING FROM
FOOD OR PRODUCT SPOILAGE,REGARDLESS OF WHETHER OR NOT THEY RESULT FROM REFRIGERATION FAILURE.
WARRANTY IS NOT TRANSFERABLE: This warranty is not assignable and applies only in favor of the original purchase
/user to whom delivered. ANY SUCH ASSIGNMENT OR TRANSFER SHALL VOID THE WARRANNTIES HEREIN
AND SHALL VOID ALL WARRANTIES. EXPRESS OR IMPLIED. INCLUDING ANY WARRANTY OF MERCHANTABILITY OR
LABOR COVER AGE FOR COMPONENT FAILURE OR OTHER THE WARRANTY PACKET PROVIDED
WITH THE UNIT.
ALTERATION. NEGLECT. ABUSE. MISUSE, ACCIDENT, DAMAGE DURING TRANSIT OR INSTALLATION, FIRE, FOOD, OR

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ACTS OF GOD:
Atosa is not responsible for the repair or replacement of any parts that are determined to have been subjected after
the date of manufacture to alteration, neglect, abuse, misuse, accident, damage during transit or installation, fire,
flood, or act of God.
IMPROPER ELECTRICAL CONNECTIONS: Atosa IS NOT RESPONSIBLE FOR THE REPAIR OR REPLACEMENT OF FAILED OR
DAMAGED COMPONENTS RESULTING FROM ELECTRICAL POWER FAILURE, THE USE OF EXTENSION CORDS, LOW
VOLTAGE, OR VOLTAGE DROPS TO THE UNIT.
THE ONE(1) YEAR PARTS & LABOR WARRANTY AND THE ADDITIONAI FOUR (4) YEAR COMPRESSOR WARRANTY ARE AS
DESCRIBED ABOVE. THESE WARRANTIES ARE EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, INCLUDING
IMPLIED WARRANTY AND MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. THERE ARE NO WARRANTIES
WHICH EXTEND BEYOND THE DESCRIPTION ON THE FACE HEREOF.
Outside U.S. and Canada: This warranty does nor apply to areas ourside the continent of the United States. Atosa is
not responsible for any warranty claims made on products sold or used in such areas.
*In some cases. a 25 % restocking fee may be charged to a buyer for returned items.*
Atosa may at any time modify our equipment in order to provide and insure a superior product. Change
is sometimes necessary to keep up with today’s high standards in our industry. Atosa reserves the final
interpretation of all public material.
Important Child Safety
Destroy or recycle the carton, plastic bags, and any exterior wrapping material
immediately after the unit is unpacked. Children should never use these items
to play.

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Product Information
--Preface
This instruction manual provides all the necessary information regarding:
⚫Use of the freezer
⚫Technical specifications
⚫Installation and handling
⚫Operator procedures and instructions
⚫Maintenance operation
The manual is to be considered an integral part of the freezer and should be stored in a safe place
for future references to insure a long life of the freezer.
ATTENTION
The manufacturer cannot be held liable in the following cases:
⚫Improper installation(not in accordance with the guidelines indicated herein)
⚫Misuse of the freezer
⚫Power supply defects
⚫Improper or inadequate maintenance
⚫Unauthorized modification or tampering
⚫Use of non-original spare parts
⚫Partial or total failure to comply with the instructions
All electrical equipment can be hazardous to health. Current standards and legal requirements
must be complied with during the installation and use of any equipment.
--Use of this equipment
The freezers are for preserving packaged foods (foods that are bottled, canned, cartoned, securely
bagged, or securely wrapped in a container).
The operating temperature for frozen food maintenance is:
■Between -8°F and -1°F at room temperature of 109°F and 60% RD.
--Technical Specification
Model
SD320P
SD420P
SD520P
SD620P
Rated Electric
220~240V
220~240V
220~240V
220~240V
Rated Frequency(Hz)
50
50
50
50
Refrigrant(Ounces)
R290/2.5oz
R290/2.8oz
R290/3.0oz
R290/3.7oz
Capacity(L)
273
355
445
545
Powerconsumption:(k
W·h/24h)
2.55
2.63
3.23
4.08
Net weight(KG)
57.3
66
77.3
86.4

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Installation Instruction
--Unpacking and Handling
The freezer is in the package of cardboard box with foam boards protect when it arrives at user’s place.
The freezer must be transported and handled with care to avoid posing a hazard to persons or property.
Never place a freezer on its side or turn it upside down as this may damage or impair operation of the
refrigerated unit.
We can not held liable for any damage or defects arising directly or indirectly from improper handling
of the equipment or non-compliance with the safeguards illustrated above.
-- Side clearance for the freezer
Install the freezer in an indoor and well-ventilated area with even flat ground.
Keep side clearance for the freezer, leave a 3 inch
(75mm) clearance at each side of the freezer for
adequate air circulation.
--Electric connection
WARING Electric connection must be carried out by professional and qualified persons
The mains voltage corresponds to the voltage on the freezer 220-240VAC 50Hz; to ensure proper
operation it is essential for the power supply voltage to come within a range of +/-10% of the unit’s
rated voltage.
The freezer should be plugged into a grounded and properly-sized electrical outlet with appropriate
overcurrent protection. Please refer to the electrical requirements on the nameplate.
Make sure that your unit has its own dedicated outlet. Do not use an extension cord.
Do not cut, remove or bypass the grounding prong

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Operation Instruction
--Setting temperature control
For safe food storage, let the freezer run for 4 hours continuously, before placing food into the cabinet.
The temperature setting of the freezer can be adjusted by moving the thermostat axis position. It can be
changed with screw driver or a coin shaped tool.The recommended setting for the freezer is at position
“4”. Turn axis to its original position when the articles are frozen. Do not fast freeze for more than 4-5
hours. To decrease the temperature (colder), turn towards position close “7”. To increase the temperature
(warmer), turn towards position close “1”.
CAUTION
Setting the temperature control to the coldest setting may cause the evaporator coil to freeze and ice up.
This will eventually result in a warmer cabinet temperature.
--Door lock
Glass door can be locked by the door lock, the door lock and its key is packed in a plastic bag with
manual as standard accessory.
This door lock can be placed into the lock hole, and turn the lock core counterclockwise to fix the lock
at the door when you want to lock the door. And the door lock can be removable from door with its key
when you don’t want to lock the door.

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Maintenance Instruction
--Care and Cleaning
The freezer should be cleaned periodically; generally clean it every 30-45 days. Unplug before cleaning
and use a soft cloth with a solution of warm water and mild soap to scrub inside and outside of the
cabinet.
Do not use acids, chemical thinner, gasoline or benzene for cleaning any part of the chest freezer. Dr y
it with a soft cloth. Never use water to rinse the freezer.
--Defrost
If the frost on the interior walls is more than 1/4”, defrosting should be done.
Method of defrosting:
1) Unplug the unit. Remove all contents of the freezer. After the freezer temperature rises, frost will melt
or scale off.
2) To speed up defrosting, place a pan of hot water into the unit and close the door. After defrosting,
drain the water through the drain hole at bottom of cabinet, and then use a soft cloth to dry the interior
walls. Plug unit in and resume operation. Wait until unit reaches desired temperature before returning
product to the freezer.
Remember replace the drain plugs when defrosting and cleaning are completed. If the drain is left open,
warm air may enter the freezer.
Note: Never use sharp utensils or ice scrapers to scrape off frost.

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Technical Service Information
--Explore view
--Service part list
No in explode
view
Part No
Description
Qty.
1
SD320P001
Cabinet for SD320P
1
SD420P001
Cabinet for SD420P
1
SD520P001
Cabinet for SD520P
1
SD620P001
Cabinet for SD620P
1
2
SD320P002
Glass door(upper)for SD320P
1
SD420P002
Glass door(upper)for SD420P
1
SD520P002
Glass door(upper)for SD520P
1
SD620P002
Glass door(upper)for SD620P
1
3
SD0001
Glass block for SD320P/ SD420P/ SD520P/
SD620P
1
4
SD320P003
Glass door(Under) for SD320P
1
SD420P003
Glass door(Under) for SD420P
1
SD520P003
Glass door(Under) for SD520P
1
SD620P003
Glass door(Under) for SD620P
1

9
5
SD0002
Food basket for
SD320P/SD420P/SD520P/SD620P
1
6
SD0003
Condenser for SD320P/ SD420P/ SD520P/
SD620P
1
7
SD0004
Fan for SD320P/ SD420P/ SD520P/ SD620P
1
8
SD0005
Power cord for SD320P/ SD420P/ SD520P/
SD620P
1
9
SD0006
Transformer+light bar for SD320P/ SD420P
1
SD520P004
Transformer+light bar for SD520P
1
SD620P004
Transformer+light bar for SD620P
1
10
SD0007
Press the cover for SD320P/ SD420P/
SD520P/ SD620P
1
11
SD0008
Thermostat knob for SD320P/ SD420P/
SD520P/ SD620P
1
12
SD0009
Compressor for SD320P/ SD420P (NLT80AA)
1
SD0010
Compressor for SD520P/ SD620P (NLT93AA)
13
SD0011
Thermostat for SD320P/ SD420P/ SD520P/
SD620P
1
14
SD0012
Temperature display for SD320P/ SD420P/
SD520P/ SD620P
1
15
SD0013
Green light for SD320P/ SD420P/ SD520P/
SD620P
1
16
SD0014
Switch for SD320P/ SD420P/ SD520P/ SD620P
1
17
SD0015
Casters for SD320P/ SD420P/ SD520P/
SD620P
1set
Not showed in
view
SD0016
Door lock key&Door lock
1
--Electric Connection Diagram
SD320P/SD420P/SD520P/SD620P Diagram

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--TroubleShooting
Problem or Concern
Possible Cause
Common Solution
The indicator is not on.
The compressor doses not
start.
The plug isn’t connected to the
socket really.
Replug it.
no power
Connect the socket with power.
The indicator is on ,but the
compressor doesn’t work and
buzzes only
The power voltage is＜98V.
Connect a voltage-regulator
(with more than 1000w
capacity).
The compressor stops a minute
after start, and restart after a
few minutes, and so repeatedly.
The power voltage is＞132V.
The compressor works
normally, but the temperature
in the cabinet goes down too
slowly.
The door is opened too
frequently.
Reduce open times.
The food in the cabinet is too
much, and placed improperly.
Place foods properly keep place
between them for ventilation of
cold air.
The frost layer is too thick.
Take out foods and defrost.
The surface of the condenser is
too dirty.
Stop and clean the condenser.
The door seals badly.
Adjust the door seal.
The noise is too loud
The freezer is placed unstably.
Place it stably.
The fixing of the freezer is
loose.
Tighten the fixing.
there’s contact between pipes.
Separate them.
The following are not faults:
⚫When the freezer is working or after is stops for a while, the refrigerant in the pipes is cycling and gives out
running water＂sounds.
⚫The surface temperature of the compressor may be up 150°F when it is working.
⚫The back side of step freezer gives out heat.
⚫In rainy season, the outer surface of the cabinet may have dew, which makes no defects on normal use. Just
dry it with a piece of cloth.