Ocean Aire 20AC Service Manual
2OAC series
Deluxe Portable Air-Cooled Spot Cooler
ENGINEERING, INSTALLATION AND SERVICE MANUAL
Form EISM-2OAC, 110114 Rev 1
TABLE OF CONENTS PAGE
GENERAL DESCRIPTION …................................. 1
PRODUCT DATA AND SPECIFICATIONS............ 2
UNIT DESCRIPTION
Standard Features.................................. 3
Applications / Operation.......................... 4
Electrical.................................................. 5
Use of Extension Cords........................... 6
Three Phase Monitor............................... 7
Condensate............................................. 8
Accessories………................................... 9 - 15
Installation................................................ 16
Electronic Controller................................. 17-19
SERVICE
Replacement Parts Procedure................. 20
Troubleshooting Guide............................. 21
Preventive Maintenance........................... 22
Interior View............................................. 23
Piping Schematic...................................... 24
DIAGRAMS
Wiring Diagrams......................................... 25 - 31
WARRANTY Statement............................. 32
This manual provides the user with basic details for the installation
and operation of the Oceanaire 2OAC spot cooler. It is recommended to read and fully understand the instructions outlined within this
manual, before operating the 2OAC unit.
As with all commercial air conditioning equipment, it is recommended
to have the 2OAC sized and installed by a licensed specifying engineer and contractor, in accordance with all local and state codes.
The length of service received can be extended by following the
installation and preventive maintenance instructions.
In our ongoing process of continuous improvement, the items and
procedures described in this manual are subject to change without
notice. Please note model and serial number of the 2OAC
unit when contacting the factory.
FORWARD
NOTICE
GENERAL DESCRIPTION
The Oceanaire 2OAC is a portable air-cooled spot cooler designed
for permanent or temporary spot cooling or heating applications.
The entire air conditioning unit has been built in an premium sheet
metal cabinet, equipped with heavy-duty casters for mobility. All
2OAC models come with a 10-foot power cord for electrical connection and added mobility in service. These spot-coolers are designed
to direct air to specific areas or objects through a discharge grill located on the upper-front of the unit, while rejecting heat from the top
of the unit. The 2OAC models range in cooling capacities from
12,000 BTU/HR to 60,000 BTU/HR to satisfy most space cooling
requirements.
The 2OAC is a self-contained unit with the entire cooling system,
evaporator and condenser fan motors and electrical components
neatly arranged in a gray polyester powder coated metal cabinet.
When connected to the proper source of electrical power, the 2OAC
is controlled by a solid-state electronic controller, with numerous
options of temperature and airflow controls that will provide the
desired level of comfort and cooling.
A wide variety of accessories and factory installed options are available for the 2OAC units allowing for improved performance and added
versatility.
NOMENCLATURE
2O AC 24 1 2
DELUXE
PORTABLE VOLTAGE
AIR-COOLED SINGLE PHASE
NOMINAL
CAPACITY
CAPACITY RATING
12..........12,000 BTU/HR
18..........18,000 BTU/HR
24..........24,00 BTU/HR
36..........36,000 BTU/HR
60……...60,000 BTU/HR
WARRANTY CARD
It is important that the warranty card be filled out completely and
returned to the factory within fourteen (14) days of installation of the
unit in order to receive the benefits of the warranty.
1
SPECIFICATIONS
2OAC
2
STANDARD FEATURES
CABINET
The 2OAC Series spot cooler has a cabinet that is constructed of 18 gauge steel with a
polyester powder coated finish that will compliment any decor. The cool blue front compliments any surrounding space, and is insulated with sound-absorbing insulation for
cool, quiet comfort. All units come equipped with handles and premium swivel casters
for portability and convenient set-up.
DELUXE ELECTRONIC CONTROLLER
Each 2OAC unit is equipped with deluxe electronic controller. When power is connected
to the unit, the thermostat will control the unit to cool a space to the desired temperature.
The thermostat is also capable of controlling the fan to operate automatically (when
needed) or continuously.
One additional feature of the Deluxe Electronic Control is that it will display a condition
alarm CON. CON displays when a condensate alarm, or a high pressure reset condition has been met. To protect the compressor from short-cycling, there is a built-in
time delay.
FAN SPEED CONTROL
One of the features of the electronic controller is that the unit supply fan can be controlled automatically or manually. In AUTO mode, the evaporator blower will adjust air
flow automatically for added comfort and performance Or if desired, the fan speed can
be set to MANUAL mode and the evaporator blower will run continuously at one of six
levels of fan speed.
CONDENSATE RESERVOIR/PUMP
2OAC units come equipped with a means for handling the condensate generated during
the cooling process. All models except the 2OAC60 models come equipped with a Con-
densate Reservoir Tank, that captures the condensate from cooling. The tank can then
be easily removed from the unit and emptied as required.
The 2OAC60 models come equipped with an Automatic Condensate Pump that disposes of the condensate. The pump comes with a 20 foot long vinyl hose that allows for the
disposal of the condensate water to a drain. The automatic pump is capable of a 20ft lift,
to handle almost any installation requirement.
FILTERS
All 2OAC units are equipped with washable filters at the air intakes. Electrostatic mesh
air filters located behind the evaporator return air grill serve to filter the air before it is
cooled, and behind the condenser return air grill to prevent dust build-up. Both filters
can be easily removed and cleaned.
HIGH PRESSURE SAFETY SWITCH
Located on the back of the 2OAC unit is a manual re-set high pressure switch, used for
the protection of the compressor. If the condensing pressure exceeds the limit setting,
the cut-out shuts down the compressor, while the evaporator fan remains running. The
display will indicate CON. The compressor can be re-started, once the condensing pressure has lowered, by depressing the “RESET” button.
POWER CORDS
All 2OAC units come with power cords, convenient connection and portability. All units
except the 5-ton models, and 3-phase models are equipped with LCDI for added safety
devices.
3
APPLICATIONS
COOLING MODE—SPOT COOLER
The 2OAC can be used in an open environment to cool specific objects or "spots". Spot
Cooling is a convenient and economical way to provide air conditioning where cooling the
entire space is impractical. Cool air is discharged from the unit and is directed where it is
needed. Nozzle kits can be used to improve direction of the cooling airflow.
AREA COOLER
When the 2OAC is installed in an area that is not totally enclosed, the condenser hot air
exhaust duct directs condenser air out of the area, allowing the evaporator air to cool the
specific space.
ROOM AIR CONDITIONER
When ducted, the OceanAire 2OAC can be used as a room air conditioner to cool an
enclosed space. Using the condenser return air plenum (2DCP) and ceiling discharge kit
(CK) and ceiling panel kits CK-PL accessories, the 2OAC can operate as a room air
conditioner with the condenser air isolated form the conditioned space.
2OAC—OPERATION / DESCRIPTION
ELECTRONIC
CONTROLLER
CONDENSER
AIR INLET
(Back of Unit)
OUTDOOR FAN DISCHARGE
“HOT”
INDOOR FAN
SUPPLY AIR
“COOL”
RETURN AIR
GRILL
AND FILTER
2OAC OPERATION
4
SERVICE CORD
All 2OAC-Series units are equipped with the standard ten foot long service cord
with plug configurations and receptacle requirements as shown in this chart.
2OAC1211, 2OAC1811, 2OAC2412 and 2OAC3612 units come with LCDI
(Leakage Current Detection & Interruption) devices that serve as a means of
electrical protection.
CAUTION—DO NOT USE THE LCDI AS AN ON/OFF SWITCH FOR THE
All 3-phase models are equipped with locking plugs for added connection reliability. Refer to the chart below for plug and receptacle details for all
2OAC models.
UNIT
A DAMAGED LCDI POWER SUPPLY CORD MUST
BE REPLACED WITH A NEW POWER SUPPLY
CORD AND NOT REPAIRED
UNIT/MODEL PLUG CONFIGURATION RECEPTACLE
115 VOLT
2OAC1211
115 VOLT
2OAC1811
208-230 VOLT SINGLE PHASE
2OAC2412
208-230 VOLT SINGLE PHASE
2OAC3612
208-230 VOLT SINGLE PHASE
2OAC6012
208-230 VOLT 3-PHASE
2OAC3632
2OAC6032
15A-125 VOLT
NEMA 5-15P
20A-125 VOLT
NEMA 5-20P
20A-250 VOLT
NEMA 6-20P
30A-250 VOLT
NEMA 6-30P
50A-250 VOLT
NEMA 6-50P
30A-250 VOLT
NEMA L15-30P
NEMA-5-15R
NEMA 5-20R
NEMA 6-20R
NEMA 6-30R
NEMA 6-50R
NEMA L15-30R
460 VOLT 3-PHASE
2OAC3634
2OAC6034
20A-460 VOLT
NEMA L16-20P
5
NEMA L16-20R
CAUTION:
USE OF EXTENSION CORDS
FOR MODEL 2OAC1211 AN EXTENSION CORD CAN BE USED PROVIDED IT IS
RATED AT LEAST 15 AMPS @ 115 VOLTS WITH GROUNDING-TYPE ATTACHMENT PLUG AND GROUNDING TYPE CONNECTOR (LOAD FITTING)
FOR MODEL 2OAC1811 AN EXTENSION CORD CAN BE USED PROVIDED IT IS
RATED AT LEAST 20 AMPS @ 115 VOLTS WITH GROUNDING-TYPE ATTACHMENT PLUG AND GROUNDING TYPE CONNECTOR (LOAD FITTING)
FOR MODEL 2OAC2412 AN EXTENSION CORD CAN BE USED PROVIDED IT IS
RATED AT LEAST 20 AMPS @ 250 VOLTS WITH GROUNDING-TYPE ATTACHMENT PLUG AND GROUNDING TYPE CONNECTOR (LOAD FITTING)
FOR MODEL 2OAC3612 AN EXTENSION CORD CAN BE USED PROVIDED IT IS
RATED AT LEAST 30 AMPS @ 250 VOLTS WITH GROUNDING-TYPE ATTACHMENT PLUG AND GROUNDING TYPE CONNECTOR (LOAD FITTING)
FOR MODEL 2OAC6012 AN EXTENSION CORD CAN BE USED PROVIDED IT IS
RATED AT LEAST 50 AMPS @ 250 VOLTS WITH GROUNDING-TYPE ATTACHMENT PLUG AND GROUNDING TYPE CONNECTOR (LOAD FITTING)
FOR MODELS 2OAC3632 AND 2OAC6032 AN EXTENSION CORD MAY BEUSED
PROVIDED IT IS RATED AT LEAST 30 AMPS @ 250 VOLTS, 3 PHASE
FOR MODELS 2OAC3634 AND 2OAC6034 AN EXTENSION CORD CAN BE USED
PROVIDED IT IS RATED AT LEAST 20 AMPS @ 600 VOLTS, 3 PHASE
SPECIAL NOTICE—THREE PHASE OPERATION
Models 2OAC3632, 2OAC3634, 2OAC6032 and 2OAC6034
All three-phase 2OAC models are equipped with a three-phase monitor for added compressor protection. The phase monitor, located in
the control box, has multi-color LED that reports status. The monitor
protects the compressor from reverse operation, phase loss and low
voltage situations. Further description of the three-phase monitor is
located in the electrical section of the manual.
NOTICE - DO NOT OPERATE ANY THREE-PHASE UNIT BY BYPASSING THE MONITOR, THIS WILL VOID THE WARRANTY
6
7
CONDENSATE RESERVOIR TANK
For 2OAC Models 2OAC12, 2OAC18, 2OAC24 and 2OAC36, a 5-gallon polyethylene
tank is provided to collect condensate. The tank is located in the lower, front section of
the unit. A high water level cut-out switch is used to stop the compressor and condenser
fan automatically when the tank's pre-set water level has been reached. The evaporator
fan will continue to run, circulating air.
For 2OAC12, 2OAC18, 2OAC24 and 2OAC36 — Condensate water drops from drain
pan into SUMP of the condensate tank
TANK LEVEL ADJUSTMENT INSTRUCTIONS
An adjustment screw is provided to vary the cut-off of the tank full switch. If a lighter (less
weight) level of water is desired, turn the adjusting screw clockwise. Do not exceed 6 full
turns counter-clockwise.
CAUTION, TURN UNIT OFF: BEFORE ADJUSTING SET SCREW
BEFORE REMOVING TANK TO EMPTY CONDENSATE
Turn screw clockwise to lower water level. Less water makes tank lighter and easier to
remove.
8
CK-12PL
CK-16
ACCESSORIES
CK-12
CK-16
2DDA-6
2DDA-10
2DDA-16
2NK-1
2NK-2
2NK-3
2DCP-1
2DCP-2
DCP-5
DEP-10
2DEP-12
DEP-16
2OAC UNIT
9
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