OCEANAIRE OWC Service Manual
OWC series
Deluxe Portable Water-Cooled Spot Cooler
ENGINEERING, INSTALLATION AND SERVICE MANUAL
Form EISM-OWC, 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
Accessories………................................... 7 - 12
Options..................................................... 13
Installation................................................ 14
Electronic Controller................................. 15 - 17
SERVICE
Water Valve Adjustment, Unit Interior..... 18
Replacement Parts Procedure................. 19
Troubleshooting Guide............................. 20
Preventive Maintenance........................... 21
DIAGRAMS
Piping Schematic....................................... 22
Three Phase Monitor................................. 23
Wiring Diagrams......................................... 24 - 29
FORWARD
This manual provides the user with basic details for the installation
and operation of the Oceanaire Air Boss spot cooler. It is recommended to read and fully understand the instructions outlined within
this manual, before operating the AQUACOOLER unit.
As with all commercial air conditioning equipment, it is recommended
to have the AQUACOOLER 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.
NOTICE
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 AQUACOOLER
unit when contacting the factory.
GENERAL DESCRIPTION
The Oceanaire AQUACOOLER is a portable water-cooled air conditioner designed for permanent or temporary spot cooling applications. The entire air conditioning unit has been built in an attractive
sheet metal cabinet, equipped with heavy-duty casters for mobility.
All AQUACOOLER 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 AQUACOOLER models range in cooling capacities from 12,000 BTU/HR to 60,050 BTU/HR to satisfy
most space cooling requirements.
The AQUACOOLER is a self-contained unit with the entire cooling
system, fan motors and water-side components neatly arranged in a
gray polyester powder coated metal cabinet. When connected to the
proper source of electrical power, the digital thermostat controls the
AQUACOOLER unit to provide the desired level of comfort and cooling.
A wide variety of accessories and factory installed options are available for the AQUACOOLER units allowing for improved performance
and versatility.
NOMENCLATURE
O WC 24 1 2
DELUXE
PORTABLE VOLTAGE
WATER-COOLED SINGLE PHASE
NOMINAL CAPACITY
CAPACITY RATING SUFFIXES
12..........12,000 BTU/HR 5—50 Hz Model
18..........18,000 BTU/HR H—Heresite® Coated Coil
24..........24,00 BTU/HR QC—Quick Connect Fittings
36..........36,000 BTU/HR S—Special Model
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.
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2
STANDARD FEATURES
CABINET
The OWC-Series cabinet is constructed of 18 gauge steel with a gray polyester powder
coated finish that will compliment any decor. The entire cabinet is insulated with a soundabsorbing insulation for cool, quiet comfort. All units come equipped with swivel casters
for portability and convenient set-up.
ELECTRONIC THERMOSTAT
All AQUACOOLER units are equipped with a non-programmable electronic thermostat.
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. To protect the compressor from shortcycling, there is a built-in time delay in the thermostat. In the event of a power outage, all
thermostat settings are saved, and the unit will re-start automatically.
FAN SPEED CONTROL
The electronic thermostat is capable of setting fan speeds automatically or manually. In
AUTO mode, the fan speed adjusts in according to cooling conditions. In MANUAL
mode, the fan speed can be maintained at a one of six speed levels, from low to high.
CONDITION ALARM—CON
The LED thermostat of the AQUACOOLER will display the word “CON” , indicating a fault
condition in the controller. CON indicates that there is a condensate condition that needs
to be addressed or the high pressure switch has been tripped. For models less than 5tons, the CON indicates that the condensate tank is full and needs to be emptied. In the 5
-ton AQUACOOLER units (model OWC60) CON indicates a condensate pump over-flow
condition where the pump is either disabled, or incapable of rejecting the condensate
water, and must be serviced. For the high pressure switch, see below.
CONDENSATE PUMP
All AQUACOOLER units come equipped with an Automatic Condensate Pump that disposes of the condensate. The pump discharges through a 3/8 male flare DRAIN connection located on the back of the unit. The automatic pump is capable of a 20ft lift, to handle almost about any installation requirement.
HIGH PRESSURE SAFETY SWITCH—CON
Located on the back of the AQUACOOLER unit is a manual re-set high pressure switch,
used for the protection of the compressor in the event that the condenser water supply is
turned off. If the condensing pressure exceeds the limit setting, the cut-out shuts down
the compressor, while the evaporator fan remains running, and “CON” will display on the
controller. Once the water interruption has been corrected, turn the unit off, reset the
switch by depressing the red RESET button on the back of the unit, and restart the unit.
FILTERS
All AQUACOOLER units are equipped with washable a filter at the air intake. Electrostatic
mesh air filters located behind the evaporator return air grill serve to filter the air before it
is cooled, keeping the coil free from dust build-up. The filters can be easily removed and
cleaned.
POWER CORDS
All AQUACOOLER 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.
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SPOT COOLER
APPLICATIONS
The AQUACOOLER 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.
ROOM AIR CONDITIONER
One feature of the AQUACOOLER is it operates as a room air conditioner
because water is used as the means for heat rejection. The major
convenience of water-cooled air conditioning is the convenience of
connecting water hoses or lines as compared to the installation of condenser
air ducts used for air-cooled portables. A variety of hose kits are available
that can be used for connecting to a water supply and drain while providing
portability within the conditioned space.
AQUACOOLER—OPERATION / DESCRIPTION
EVAPORATOR
ELECTRONIC
THERMOSTAT
FAN DISCHARGE
“COOL”
WATER IN
GRILL
AND FILTER
RETURN
AIR
INLET
DRAIN
WATER OUT
AQUACOOLER—FRONT VIEW
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SERVICE CORD
All AQUACOOLER Series units are equipped with the standard ten foot long service cord
with plug configurations and receptacle requirements as shown in this chart. OWC1211,
OWC1811, OWC2412 and OWC3612 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 UNIT
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 AQUACOOLER models.
A DAMAGED LCDI POWER SUPPLY CORD MUST BE REPLACED
WITH A NEW POWER SUPPLY CORD OBTAINED FROM OCEAN-
AIRE, AND NOT REPAIRED
UNIT/MODEL PLUG CONFIGURATION RECEPTACLE
115 VOLT
OWC1211
OWC1811
208-230 VOLT SINGLE PHASE
OWC2412
OWC3612
208-230 VOLT SINGLE PHASE
OWC6012
208-230 VOLT 3-PHASE
OWC3632
208-230 VOLT 3-PHASE
OWC6032
460 VOLT 3-PHASE
OWC3634
OWC6034
15A-125 VOLT
NEMA 5-15P
20A-250 VOLT
NEMA 6-20P
30A-250 VOLT
NEMA 6-30P
20A-250 VOLT
NEMA L15-20P
30A-250 VOLT
NEMA L15-30P
20A-460 VOLT
NEMA L16-20P
NEMA-5-15R
NEMA 6-20R
NEMA 6-50R
NEMA L15-20R
NEMA L15-30R
NEMA L16-20R
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USE OF EXTENSION CORDS
CAUTION:
FOR MODEL OWC1211 AND OWC1811 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 MODELS OWC2412 and OWC3612 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 OWC6012 AN EXTENSION CORD CAN BE USED PROVIDED IT IS RATED AT LEAST 30 AMPS @ 250 VOLTS WITH GROUNDINGTYPE ATTACHMENT PLUG AND GROUNDING TYPE CONNECTOR
(LOAD FITTING)
FOR MODEL OWC3632 AN EXTENSION CORD MAY BEUSED PROVIDED IT IS RATED AT LEAST 20 AMPS @ 250 VOLTS, 3 PHASE
FOR MODELS OWC6032 AN EXTENSION CORD MAY BEUSED PROVIDED IT IS RATED AT LEAST 30 AMPS @ 250 VOLTS, 3 PHASE
FOR MODELS OWC3634 AND OWC6034 AN EXTENSION CORD CAN
BE USED PROVIDED IT IS RATED AT LEAST 20 AMPS @ 600 VOLTS, 3
PHASE
SPECIAL NOTICE—THREE PHASE OPERATION
Models OWC3632, OWC3634, OWC6032 and OWC6034
All three-phase AQUACOOLER models are equipped with a threephase 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 threephase 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
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ACCESSORIES
AQUACOOLER UNIT
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OWC – AQUACOOLER ACCESSORIES
NOZZLE KIT
NK-1 (2 X 4-Inch) OWC12
NK-2 (2 X 6-Inch) OWC18, 24
2NK-3 (2 x 8-iNCH) OWC36
NK-3 (2 X 8-Inch) OWC60
EVAPORATOR RETURN AIR PLENUM
DEP-10 (10-Inch Round) OWC12
DEP-12 (12-Inch Round) OWC18, 24, 36
DEP-16 (16-Inch Round) OWC60
DISCHARGE DUCT ADAPTER
DDA-6 (6-Inch Round) OWC12
DDA-10 (10-Inch Round) OWC18, 24,
2DDA-16 (16-inch Round) OWC36
DDA-16 (16-Inch Round) OWC60
HOSE KIT
HK-1 10FT OWC 12, 18, 24
HK-2 25FT OWC 12, 18, 24
HK-5 40FT OWC 12, 18, 24
HK-3 10FT OWC 36, 60
HK-4 25FT OWC 36, 60
HK-6 40FT OWC 36, 60
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