
To reduce the risk of fire, electric shock or injury to persons using this freezer, read all instructions and follow
basic safety precautions before using the unit, including the following:
Do not modify the plug provided with the unit. If it will not fit the outlet,
have a proper outlet installed by a qualified electrician.
Do not position equipment so it is difficult to disconnect from the power supply.
While under warranty, do not attempt to repair or replace any part of the
freezer for servicing without first contacting the So-Low Service Department.
BEFORE CALLING THE MANUFACTURER’S TECHNICAL SUPPORT DEPARTMENT
Please have the model number of the unit, box identification number, and serial number ready as
well as the problem description. The model, serial number and box id number can be found on
the serial tag, which is located on the interior left upper wall, or back of the unit.
SAVE THESE INSTRUCTIONS

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● MOISTURE DURING THE SUMMER SEASON…….……………………...
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● PROGRAMING & CALIBRATION………………………………………….….
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● CLEANING AND DEFROST PROCEDURE………….…………………….
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● PORTHOLE FOR PROBE INSTALLATION ……..…………...…………….
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MODEL
AMPS / HP / Heat Rejection BTU/HR
REFRIGERANT
DH25-23SD
6.34 A / 3/4 HP / 3145
R290 – 3.35OZ.
DH25-27SD
10.0 A / 3/4 HP / 4158
R290 – 3.53 OZ.
DH25-49SD
10.0 A / 2X 3/4 HP / 6291
R290 – 3.35 OZ (X2)
DH25-23SD-SS
6.34 A / 3/4 HP / 3145
R290 – 3.35OZ.
DH25-27SD-SS
10.0 A / 3/4 HP / 4158
R290 – 3.53 OZ.
DH25-49SD-SS
10.0 A / 2X 3/4 HP / 6291
R290 – 3.35 OZ (X2)
DH29-23SD
11.0 A / 3/4 HP / 2891
R290 – 4.05 OZ
DH29-34SD
11.0 A / 3/4 HP / 2891
R290 – 4.05 OZ
DH29-46SD
10.0 A / 3/4+ HP / 3870
R290 – 4.05 OZ

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GFCI: Units that utilize variable speed compressor technology can
experience nuisance tripping on Class A GFCI outlets which have a
trip limit of 4 to 6 mA. To avoid this issue in a location that requires
GFCI circuit protection, it is recommended to use HUBBEL Model
Number GFRST83W 20A Heavy Duty Hospital Grade Self-Test GFCI
Receptacle. Follow All National and Local Codes This Unit Must Be
Grounded. Do not use extension cords and do not disable or
by-pass ground prong on electrical plug.


Hi
HIGH TEMPERATURE ALARM
Confirm Doors Are Closed
d0r
DOOR OPEN ALARM
Close Door
E01, E02, E03, E04
SENSOR ERROR
dEF
UNIT IS DEFROSTING
Normal Operations

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o

ATTENTION
IT IS RECOMMENDED TO CLEAN THE
CONDENSER AT LEAST ONCE EVERY
180 DAYS TO PREVENT DUST BUILDUP.

CAUTION
DISCONNECT THIS UNIT FROM THE POWER SUPPLY
BEFORE PERFORMING MAINTENANCE ON THE UNIT.
•
•

WARNING

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CONTROL WIRING:

SO-LOW ENVIRONMENTAL EQUIPMENT COMPANY
CINCINNATI, OHIO, USA
WARRANTY
So-Low Environmental Equipment Company as the Manufacturer WARRANTS the quality of all parts used in the
construction of this machine to be free from defects to the original purchaser.
a. This WARRANTY shall continue for 3 years from the original shipment date, i.e. 3 years from the time of
shipment from So-Low Environmental Equipment Company at Cincinnati, Ohio, U.S.A. This WARRANTY
shall not extend to shipments due to repairs or technical service after original WARRANTY has expired.
b. This WARRANTY shall have force and effect only if all items are used with proper circuits, voltages, and
frequencies and the operation thereof is in accordance with instructions furnished by the manufacturer.
c. This WARRANTY shall not extend to such parts as refrigerants, finishes, belts, and dryers.
d. This WARRANTY shall not extend to ordinary wear and tear, or ordinary refrigeration service and
refrigeration adjustments, unless specifically included in the equipment purchase contract.
e. This WARRANTY shall not extend in any way to liability (whether or not construed on tort or contract any
other theory of law) to consequential damages resulting from:
1. Ordinary use of the machine.
2. Abuse or misuse of the machine; such as high room ambient temperature, or operating the unit
out of the stated temperature range.
3. Interruption or cessation of the operation of the machine from any cause whatsoever, Including
but not limited to power failure, LOW VOLTAGE, acts of God, explosion, negligent operation and
the like.
“Consequential damages” shall be defined to include, but not limited to spoilage of, or damage to contents
placed in the machine, loss of profits, expenses of delay resulting from interruption or cessation of the
operation of the machine, loss of customers or business good will, any time element loss, or any other
special damages. Also, there is no guarantee for plus or minus temperature.
f. This WARRANTY shall extend only to furnishing for replacement a part found by the manufacturer to be
defective.
g. This WARRANTY shall not extend nor cover any part used as a replacement part beyond the original three
year machine WARRANTY: nor does the manufacturer undertake any obligation in connection with this
WARRANTY other than that specifically set forth above. No person is authorized to make any representation
as to this WARRANTY except duly authorized officers of So-Low Environmental Equipment Company.
h. SO-LOW ENVIRONMENTAL EQUIPMENT COMPANY agrees if instructions as to operation and use are
strictly followed, and power sources (circuits, voltages, frequencies, ect.) are properly applied, to provide
within three years after original delivery to shipper, labor free of charge to maintain equipment in good
working condition.
i. This WARRANTY shall extend replacement compressor parts to 4 additional years. This compressor
WARRANTY shall not extend nor cover any labor during this extended period.
j. This WARRANTY is limited to products purchased and installed in the United States of America.
