Arctic Air AST28RZ Instruction manual

INSTALLATION,
OPERATION &
MAINTENANCE
MANUAL
Pizza Prep Tables
Sandwich/Salad Units
Under-counter Refrigerators
and Freezers
Worktop Refrigerators and
Freezers
IMPORTANT
Please read this manual completely
before attempting to install or operate this equipment.

Service and Installation Manual
2
COMMECIAL REFRIGERATOR SAFETY
Your safety and the safety of others are very im ortant.
We have provided many important safety messages in this manual and on your appliance. Always read and
obey all safety messages.
Our roduct instructions will be u loaded on our com any official website.
This is the Safety Alert Symbol. This symbol alerts you to potential hazards that can
kill or injure you and others. All safety messages will follow the Safety Alert Symbol
and either the words” ANGER”, “WARNING” or “CAUTION”.
anger means that failure to heed this safety
statement may result in severe personal injury or
death.
Warning means that failure to heed this safety
statement may result in extensive product
damage, serious personal injury, or death.
Caution means that failure to heed this safety
statement may result in minor or moderate
personal injury, or property or equipment damage.
All safety messages will alert you to what the potential hazard is, tell you how to reduce the chance of injury,
and let you know what can happen if the instructions are not followed.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly
qualified persons in order to avoid a hazard.
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 or
instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
This appliance can be used by children aged from 8 years and above and persons with reduced physical
sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or
instruction concerning use of the appliance in a safe way and understand the hazards involved. Children
shall not play with the appliance. Cleaning and user maintenance shall not be made by children without
supervision.
Keep the appliance and its cord out of reach of children less than 8 years.
Do not store explosive substances such as aerosol cans with a flammable propellant in this appliance.
The appliance use flammable insulation blowing gas C5H10, disposal of the appliance shall in accordance
with the regulations of local authorities.

Service and Installation Manual
3
The key for appliance electric box should be safe kept by qualified persons in order to avoid a hazard
WARNING: Keep ventilation openings, in the appliance enclosure or in the built-in structure, clear of
obstruction.
WARNING: o not use mechanical devices or other means to accelerate the defrosting process, other than
those recommended by the manufacturer.
WARNING: o not damage the refrigerant circuit.
WARNING: o not use electrical appliances inside the food storage compartments of the appliance, unless
they are of the type recommended by the manufacturer.
Handling, moving, and use of the refrigerator or freezer to avoid either damaging the refrigerant tubing, or
increasing the risk of a leak
L’opération, le mouvement et l’utilisation du réfrigérant ou le congélateur doivent éviter les dommages du
tuyau réfrigérant ou le rique de la fuite.
Caution – Risk of Fire or Explosion due to Flammable Refrigerant Used. Follow Handling
Instructions Carefully in Compliance with U.S. Government Regulations.
Component parts shall be replaced with like components and that servicing shall be done by factory
authorized service personnel, so as to minimize the risk of possible ignition due to incorrect parts or
improper service.
Les pièces de rechange doivent être remplacées par les components relatifs et les opérations doivent être
faites par les professionnels afin de minimaliser le risque d’allumage à cause des parts incorrects ou des
opérations impropres.
CAUTION – Risk Of Fire Or Explosion ue To Puncture Of Refrigerant Tubing; Follow Handling Instructions
Carefully. Flammable Refrigerant Used
DANGER: Risk of child entrapment. Before you throw away your old refrigerator or freezer:
Take off the doors
Leave the shelves in place so that children may not easily climb inside

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Installation, Operation & Maintenance Manual
TABLE OF CONTENTS
SPECIFICATIONS.............................................................................................................................................................................5
REGISTRATION................................................................................................................................................................................6
SAFETY INSTRUCTIONS.................................................................................................................................................................7
INTRODUCTION ...............................................................................................................................................................................8
Site Preparation..........................................................................................................................................................................8
RECEIVING AND INSPECTING ......................................................................................................................................................8
Serial Number Location..............................................................................................................................................................8
INSTALLATION .................................................................................................................................................................................9
Location .....................................................................................................................................................................................9
Inside cabinet .....................................................................................................................................................................9
Outside cabinet ...................................................................................................................................................................9
Electrical connection ..................................................................................................................................................................9
Leveling .....................................................................................................................................................................................9
Stabilizing............................................................................................................................................................................9
OPERATION ...................................................................................................................................................................................10
Refrigerated Cabinets ..............................................................................................................................................................10
Defrosting .................................................................................................................................................................................10
Front Panel Controls and Indicators.........................................................................................................................................10
Functions..................................................................................................................................................................................11
Display the set point:.........................................................................................................................................................11
Change the set point:........................................................................................................................................................11
Manual Defrost..................................................................................................................................................................11
Keyboard Lock ..................................................................................................................................................................11
Keyboard Unlock...............................................................................................................................................................11
Alarm Codes.............................................................................................................................................................................11
Display and Reset Alarm..........................................................................................................................................................11
MAINTENANCE ..............................................................................................................................................................................1 2
Refrigerators and Freezers ......................................................................................................................................................12
Cleaning the Condenser Coil ...................................................................................................................................................12
Stainless Steel Care and Cleaning ..........................................................................................................................................12
Gasket Maintenance ................................................................................................................................................................ 13
Doors/Hinges............................................................................................................................................................................ 1 3
Drain Maintenance ................................................................................................................................................................... 1 3
Door Replacement and Adjustment.......................................................................................................................................... 13
Open the Bottom Shroud..........................................................................................................................................................13
WIRING DIAGRAMS .......................................................................................................................................................................1 4
Models:
Models:
Models:
APP48RZ,APP71RZ,....................................
APP94RZ,AST28RZ,AMT28RZ
...............................................................................................................
AUC27RZ .................................................................................................................................................................. .25
Models: AUC48RZ , AUC60RZ ............................................................................................................................................... 26
Models: AUC27FZ................................................................................................................................................................... 27
Models: AUC48FZ , AUC60FZ................................................................................................................................................ 28
..................................................................................................................................
14
Models: AUC27RZ, AUC48RZ,AUC60RZ
...............................................................................................................................17
Models: AUC27FZ , AUC48FZ,AUC60FZ .............................................................................................................................
15
Models:
Models:
APP48RZ
APP71RZ
................................................................................................................................................................
..................................................................................................................................................................
19
20
Models:
Models:
AST28RZ,AMT28RZ
AST48RZ,AST60RZ,AMT48RZ,AMT60RZ
..............................................................................................................................................
...............................................................................................................
22
23
18
ARCTIC AIR WARRANTY................................................................................................................................................................29
Models: AST48RZ,AST60RZ,AMT48RZ,AMT60RZAST72RZ,AMT72RZ
................................................................................16
Models: AST72RZ,AMT72RZ ............................................................................................................................................... 24
Models: APP94RZ .................................................................................................................................................................. 21

5
UNDER-COUNTER REFRIGERATORS AND FREEZERS
SPECIFICATIONS
PIZZA PREP TABLES
MODEL # V/Hz/Ph AMPS STORAGE
CAPACITY
Cu-ft
PAN
1/3
Size
SHELF
CAPACITY
Sq-ft
HP BTU CHARGE
Oz
SHIP
WEIGHT
Lbs
NEMA
PLUG
APP48RZ 115/60/1 5 12 6 16 1/2 1365 3.70 348 5-15P
APP71RZ 115/60/1 5 22 9 34 1/2 1365 3.70 432 5-15P
SANDWICH/SALAD UNITS
MODEL # V/Hz/Ph AMPS STORAGE
CAPACITY
Cu-ft
PAN
1/6
Size
SHELF
CAPACITY
Sq-ft
HP BTU CHARGE
Oz
SHIP
WEIGHT
Lbs
NEMA
PLUG
AST28RZ 115/60/1 3 7 8 14 3/8 853 3 276 5-15P
AST48RZ 115/60/1 4.3 12 12 26 1/2 1365 3.17 313 5-15P
UNDERCOUNTER & WORKTOP REFRIGERATORS
MODEL # V/Hz/Ph AMPS STORAGE
CAPACITY
Cu-ft
SHELF
CAPACITY
Sq-ft
HP BTU CHARGE
Oz
SHIP
WEIGHT
Lbs
NEMA
PLUG
AUC27RZ 115/60/1 1.5 6.5 14 3/8 2800 2.47 243 5-15P
AUC48RZ 115/60/1 3 12 26 3/8 3000 2.65 300 5-15P
UNDERCOUNTER FREEZERS
MODEL # V/Hz/Ph AMPS STORAGE
CAPACITY
Cu-ft
SHELF
CAPACITY
Sq-ft
HP BTU CHARGE
Oz
SHIP
WEIGHT
Lbs
NEMA
PLUG
AUC27FZ 115/60/1 1.9 6.5 14 1/2 3500 3.35 291 5-15P
AUC48FZ 115/60/1 4 12 26 1/2 3800 3.53 340 5-15P
AST60RZ 115/60/1 4.3 15.5 16 30 1/2 1365 3.17 362 5-15P
AST72RZ 115/60/1 4.3 18 18 36 1/2 1365 3.35 408 5-15P
MEGATOP SANDWICH/SALAD UNITS
MODEL # V/Hz/Ph AMPS STORAGE
CAPACITY
Cu-ft
PAN
1/6
Size
SHELF
CAPACITY
Sq-ft
HP BTU CHARGE
Oz
SHIP
WEIGHT
Lbs
NEMA
PLUG
AMT28RZ 115/60/1 3 7 12 14 3/8 3 276 5-15P
AMT48RZ 115/60/1 4.3 12 18 26 1/2 3.17 313 5-15P
AMT60RZ 115/60/1 4.3 15.5 24 30 1/2 3.17 362 5-15P
AMT72RZ 115/60/1 4.3 18 27 36 1/2 3.35 408 5-15P
APP94RZ 115/60/1 5 32 12 54 3/4 1877 3.70 582 5-15P
853
1365
1365
1365
AUC60RZ 115/60/1 3 15.5 30 3/8 3000 2.82 380 5-15P
AUC60FZ 115/60/1 5 15.5 30 5/8 3800 3.53 388 5-15P

6
Installation, Operation & Maintenance Manual
UNDER-COUNTER REFRIGERATORS AND FREEZERS
REGISTRATION
The installation date and appliance model must be documented by the end purchaser.
Also, refer to the Warranty section for additional details on registering the appliance.
Dealer Information:
Installer Information:
Installation Date:

Installation, Operation & Maintenance Manual
7
UNDER-COUNTER REFRIGERATORS AND FREEZERS
SAFETY INSTRUCTIONS
General Safety
WARNING Arctic Air accepts no responsibility for any situation resulting from work carried out in an
unprofessional manner, or from the incorrect interpretation or application of regulations.
General Installation
WARNING  Incorrectinstallationoranymodicationsmadetotheappliancemaydamagepropertyor
result in injury or death.
Electrical
WARNING Electrical connections or any work required on the electrical circuits inside the appliance
mustbeperformedbycertiedtechniciansincompliancewithlocal,state,andfederal
regulations.
WARNING Make sure all facility electrical connections are in compliance with all local and federal
electrical code regulations.
Inspection and Maintenance
WARNING Appliance maintenance must be carried out by only by suitably trained personnel.
WARNING Before any maintenance work is performed, the appliance must be disconnected from the
electrical supply. Apply a lockout tag to the electrical supply connection.
WARNING All replacement parts that are not supplied by Arctic Air must be pre-approved before
installation.
Repair Work Safety
WARNING Repair work must only be performed by Arctic Air or one of its authorized representatives.
Arctic Air accepts no responsibility for any situation resulting from work performed by
untrained and/or unauthorized technicians.

8
Installation, Operation & Maintenance Manual
UNDER-COUNTER REFRIGERATORS AND FREEZERS
INTRODUCTION
This manual covers the Under-counter Refrigerators and
Freezers. Please read this manual completely before at-
tempting to install or operate this equipment.
Site Preparation
The installation site must be cleaned and prepared prior
to the equipment delivery.
• Refer to the SPECIFICATIONS and have a licensed
electrician conrm that all electrical requirements
are satised.
• Conrm that all ooring is structurally strong enough
to support the weight of a fully loaded unit; a fully
loaded unit can weigh as much as 1500 pounds.
Consult with a structural engineer for conrmation if
there is any reason to doubt the oor strength.
• Conrm that adequate ventilation has been provid-
ed, and that the unit will not be located close to a
heat source.
• For all units on casters, conrm that the oor is level
where the unit is to be located.
RECEIVING AND INSPECTING
Exercise care to prevent damaging the equipment dur-
ing unloading and on-site transporting.
1. Visually inspect the exterior of the package, skid
and/or container. Report any damage to the carrier
immediately.
2. If any packaging damage is noted, open and inspect
the contents with the carrier.
3. If concealed damage is discovered after unpacking
the equipment notify the carrier. Notication must
be made both in writing and verbally.
4. Check the compressor compartment housing and
visually inspect the refrigeration package. Conrm
that the lines are secure and the base is intact.
5. Request the required damage forms and an equip-
ment damage inspection by the shipping company.
The inspection should be performed within 10 days
from receipt of the equipment.
6. Retain all crating material until an inspection has
been performed or waived.
Serial Number Location
The serial number of all self-contained refrigerators and
freezers is located inside the unit on the left hand side
near the top on the wall. Have the serial number avail-
able when calling for parts or service.
This manual covers only standard units. For a custom
unit, consult the customer service department. See the
customer service phone number listed on the last page.

Installation, Operation & Maintenance Manual
9
UNDER-COUNTER REFRIGERATORS AND FREEZERS
INSTALLATION
Location
All units are intended for indoor use only. A fully loaded
unit can weigh as much as 1500 pounds. Choose a loca-
tion with a level oor strong enough to support the total
weight of a fully loaded unit. Reinforce the oor if neces-
sary.
For the most efcient refrigeration, provide good air cir-
culation around the unit.
Inside cabinet
Do not pack the unit interiors so that air circulation is im-
peded. The refrigerated air is discharged at the top rear
of the unit. Allow for proper air ow from the top rear to
the bottom of the unit. Obstructions to this air ow can
cause evaporator coil freeze ups and loss of temperature
or overow of water from the evaporator drain pan. The
shelves have a rear turn up on them to prevent obstruc-
tions to the rear air ow. However, bags and other items
located at the rear of the cabinet may obstruct the air
ow.
Outside cabinet
Be sure that the unit has access to ample air ow. Avoid
hot corners and locations near stoves and ovens. Do not
install the unit closer than two inches from a wall. To pre-
vent air obstruction, do not locate large boxes and/or tall
stacks of product that might obstruct the air exhaust or
the air inlet.
CAUTION
If the unit is laid on its side or back for any reason,
allow a minimum of 24 hours in the upright position,
beforestart-uptoallowcompressoroiltoowback
to the sump. Failure to meet this requirement can
cause compressor failure, unit damage, and will
void the unit warranties.
Electrical connection
Refer to the amperage data provided in the SPECIFI-
CATIONS, the serial tag, the local electrical code and/or
the National Electrical Code. Have a licensed electrician
conrm that the facility wiring is adequate for the unit and
that a protected circuit of the correct voltage and amper-
age is provided for each unit. Conrm that the unit is
connected only to the proper protected power source.
DANGER
TURN THE ON/OFF SWITCH TO OFF AND
DISCONNECT THE UNIT FROM THE POWER
SOURCE WHENEVER PERFORMING SERVICE,
MAINTENANCE FUNCTIONS OR CLEANING
THE UNIT.
Leveling
Level the cabinet to improve performance, to better align
the doors, to reduce uneven strain on the cabinet and
reduce movement of the contents on the shelves. Use a
level to level the unit from front to back and side to side.
Units supplied with legs have adjustable bullet feet to
make the leveling adjustments. If the unit is supplied with
casters, no leveling adjustments are available. Ensure
the oor is level, where the casters unit is located.
Stabilizing
Casters are provided for convenience, ease of cleaning
underneath and for mobility. Install the unit on a level sur-
face, in a stable condition and lock the front wheels to
prevent movement.

10
Installation, Operation & Maintenance Manual
UNDER-COUNTER REFRIGERATORS AND FREEZERS
OPERATION
Refrigerated Cabinets
The internal temperature range for all food prep units,
under-counter and worktop refrigerators is 34°F to 38°F.
The internal temperature range for under-counter and
worktop freezers is -3°F to -7°F. The rail temperature
range for all prep units is 33°F to 41°F. Operate the
food prep units only with the pans in place. Operating
food prep units without pans and/or pan covers in place
lowers the efciency and may damage the unit due to
continuous running. Opening and closing the door must
be minimized to allow the unit to maintain optimum re-
frigeration temperature. Top section is not intended for
overnight storage. Product must be removed from pans.
Empty pans can remain in cabinet.
Defrosting
Every 6 hours, the unit turns off and the controller dis-
plays the defrost symbol. This allows the evaporator
coil to clear the ice. When the coil temperature reaches
the terminal temperature (or after 20 minutes) the unit
re-starts.
Front Panel Controls and Indicators
The front panel controls and indicators are used to set
and display the unit functions and status.
Callout
No.
Control /
Indicator Function
1 Fan Indicates the fans are running.
2 Defrost Press to start the manual defrost
cycle.
3 Compressor Indicates the compressor is
running.
4Up Arrow
To display the last temperature
alarm.
In programming mode it
browses the parameter codes or
increases the displayed value.
5 Down Arrow
To display the last temperature
alarm.
In programming mode it
browses the parameter codes or
decreases the displayed value.
6 SET
Used to display a target set
point; in programming mode it
elects a parameter or conrm an
operation.
7 Display
Indicates the room temperature,
the set points and the alarm
codes.
8 Alarm Indicates a temperature alarm.
Key combinations are used to perform functions that
cannot be performed with a single key.
Key Combinations
Press Keys Result
Up Arrow Down Arrow Locks and unlocks the
keyboard.
SET Down Arrow Enters the programming
mode.
SET Up Arrow Returns to the room
temperature display.
The LED functions display operational conditions.
Callout No. Mode LED Function
1a
On Fans enabled
Flashing Fans delay after defrost
in progress
2a
On Defrost enabled
Flashing
-Programming phase
(ashing with “icon”)
- Drip time in progress
3a
On Compressor enabled
Flashing
-Programming phase
(ashing with “icon”)
-Anti-short cycle delay
enabled
8a On A temperature alarm
happened
1
1a
8a
3a2a
2
8
7
4 5
6
3