Ocean Aire OWC1211, OWC1811, OWC3632, OWC2412, OWC3634 Service Manual
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ENGINEERING, INSTALLATION AND SERVICE MANUAL
OWC series
Deluxe Portable Water-Cooled Spot Cooler
Form EISM-OWC 030115 Rev 1
TABLE OF CONTENTS
PAGE
GENERAL INFORMATION…................................. 1
PRODUCT DATA AND SPECIFICATIONS............ 2
UNIT DESCRIPTION
Standard Features.................................. 3
Applications / Operation.......................... 4
Electrical Configurations......................... 5
Use of Extension Cords.......................... 6
Accessories……….................................. 7 - 11
Options / Special Order........................... 12
Installation............................................... 13
Electronic Controller................................ 14 - 16
SERVICE
Water Valve Adjustment, Unit Interior..... 17
Replacement Parts Procedure................ 18
Troubleshooting Guide............................ 19
Preventive Maintenance.......................... 20
DIAGRAMS
Piping Schematic..................................... 21
Single Phase Wiring Diagrams………….. 22-24
Three Phase Monitor............................... 25
Three Phase Wiring Diagrams................ 26 - 28
WARRANTY………………………………………….. 29
END USER INFORMATION AND TECH NOTES…. Back Page
FORWARD
This manual provides the user with basic details for the installation and operation of the
OceanAire OWC spot cooler. It is recommended to read and fully understand the
instructions outlined within this manual, before operating the OWC unit.
As with all commercial air conditioning equipment, it is recommended to have the OWC
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 OWC unit when contacting the factory.
NOMENCLATURE
O WC 18 1 1
DELUXE
PORTABLE VOLTAGE
WATER-COOLED PHASE (1 or 3)
NOMINAL CAPACITY
CAPACITY RATING
12..........12,000 BTU/HR
18..........18,000 BTU/HR
24..........24,000 BTU/HR
36..........36,000 BTU/HR
60……...60,000 BTU/HR
GENERAL INFORMATION
The OceanAire OWC is a portable water-cooled air conditioner designed for permanent
or temporary spot cooling applications. The entire unit has been built in a premium sheet
metal cabinet, equipped with heavy-duty casters for mobility. All OWC 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. The OWC models range in cooling capacities
from 12,000 BTU/HR to 60,000 BTU/HR to satisfy most space cooling requirements.
The OWC is a self-contained unit with the entire cooling system (blower assembly,
electrical, refrigerant, and waterside components), neatly arranged in a gray polyester
powder coated metal cabinet. When connected to the proper source of electrical power,
the deluxe electronic controller provides the desired level of comfort and cooling.
A wide variety of accessories and factory installed options are available for the OWC
units allowing for improved performance and versatility.
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
SPECIFICATIONS
OWC
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 sound- absorbing
insulation for cool, quiet comfort. All units come equipped with swivel casters for portability
and convenient set-up.
DELUXE ELECTRONIC CONTROLLER
All OWC units are equipped with a 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. To protect the compressor from short-cycling, 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 deluxe electronic controller is capable of setting fan speeds automatically or manually. In
AUTO mode, the fan speed adjusts in accordance to cooling conditions. In MANUAL mode,
the fan speed can be maintained at any one of six speed levels, from low to high.
CONDITION ALARM—CON
The LED thermostat of the OWC will display the word “CON”. CON indicates a fault
condition that needs to be addressed:
CONDENSATE PUMP...disabled / restricted drain tube/routed incorrectly
WATER SUPPLY……….turned off / interrupted flow
EITHER CONDITION WILL TRIP THE HIGH PRESSURE SAFETY SWITCH. See below.
CONDENSATE PUMP
All OWC units come equipped with an Automatic Condensate Pump that removes the
condensate. The pump discharges through a 3/8 male flare DRAIN connection located on the
back of the unit. The pump is capable of pumping to a 20-foot height, to handle almost any
installation requirement.
HIGH PRESSURE (HP) SWITCH
Located on the back of the OWC 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 switch cycles off the compressor, while the
evaporator fan remains running, and the default “CON” will display on the controller. The high
pressure switch is also wired in series with the condensate pump. If a failure occurs with the
operation of the pump circuit, the HP switch will open. Once the water interruption/condensate
pump failure 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 OWC units are equipped with a washable filter at the air intake. An electrostatic mesh air
filter is located behind the evaporator return air grille to filter the air before it is cooled,
keeping the coil free from dust build-up. The filter can be easily removed and cleaned.
POWER CORDS
All OWC units come standard with a power cord for a convenient connection. All
models, except for the 3-phase units and 5-ton units, are equipped with LCDI for
added safety features.
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APPLICATIONS
SPOT COOLER
The OWC 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 OWC is it operates as a room air conditioner because it uses water as
the means for heat rejection. The major advantage 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 kit lengths are
available that can be used for connecting to a water supply and drain, while providing
portability within the conditioned space.
RETURN
AIR
INLET
EVAPORATOR
FAN DISCHARGE
“COOL”
GRILLE
AND
WASHABLE
FILTER
DELUXE
ELECTRONIC
CONTROLLER
(THERMOSTAT)
DRAIN
WATER IN
WATER OUT
OWC—OPERATION / DESCRIPTION
ELECTRICAL CONFIGURATION
All OWC Series units are equipped with a standard 10-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 OWC models.
UNIT/MODEL PLUG CONFIGURATION RECEPTACLE
115 VOLT
OWC1211
OWC1811
NEMA 5-15R
208-230 VOLT SINGLE PHASE
OWC2412
OWC3612
NEMA 6-20R
208-230 VOLT SINGLE PHASE
OWC6012
NEMA 6-30R
208-230 VOLT 3-PHASE
OWC3632
NEMA L15-20R
208-230 VOLT 3-PHASE
OWC6032
NEMA L15-30R
460 VOLT 3-PHASE
OWC3634
OWC6034
NEMA L16-20R
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
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A DAMAGED LCDI POWER SUPPLY CORD MUST
BE REPLACED WITH A NEW POWER SUPPLY
CORD AND NOT REPAIRED
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USE OF EXTENSION CORDS
CAUTION
FOR MODELS OWC1211 AND OWC1811 AN EXTENSION CORD CAN BE USED
PROVIDED IT IS RATED AT LEAST 15 AMPS @ 115 VOLTS WITH GROUNDINGTYPE 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 GROUNDINGTYPE 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 GROUNDING-TYPE ATTACHMENT
PLUG AND GROUNDING TYPE CONNECTOR (LOAD FITTING)
FOR MODEL OWC3632 AN EXTENSION CORD CAN BE USED PROVIDED IT IS
RATED AT LEAST 20 AMPS @ 250 VOLTS, 3 PHASE
FOR MODEL OWC6032 AN EXTENSION CORD CAN BE USED 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 OWC 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 WHILE BY-
PASSING THE MONITOR. THIS WILL VOID THE WARRANTY.
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OWC 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
2DEP-12 (12-Inch Round) OWC18, 24
DEP-16 (16-Inch Round) OWC36, 60
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
HOSE KIT
NOZZLE KIT
DISCHARGE
DUCT
ADAPTER
ROUND FLEX-DUCT
(SOLD SEPARATELY)
ROUND FLEX-DUCT
(SOLD SEPARATELY)
EVAPORATOR
RETURN AIR
PLENUM
ACCESSORIES
DISCHARGE AIR NOZZLE KIT ASSEMBLY
The optional discharge nozzle kits are used to direct the conditioned air to a specific
target area. By concentrating the airflow, the nozzles increase the air velocity towards
production lines to cool personnel and/or equipment. In server rooms, the nozzles can be
used to direct the airflow through the rack to remove the hot air from the area of the
equipment.
NK-1 for model OWC12, with (2) 4-inch diameter nozzles with an approximate
compressed length of 15 inches. The approximate extended length is 21 inches.
NK-2 for models OWC18 and OWC24 with (2) 6-inch diameter nozzles with an
approximate compressed length of 22 inches. The approximate extended length is
32 inches.
2NK-3 for model OWC36 , with (2) 8-inch diameter nozzles with an approximate
compressed length of 20 inches. The extended length is approximately 29 inches.
NK-3 for OWC60, with (2) 8-inch diameter nozzles with an approximate compressed
length of 20 inches. The extended length is approximately 29 inches.
The nozzle kits come pre-assembled with the nozzles secured to a mounting plate, and
with edge guards. By removing the OWC discharge grill, you can insert the nozzle kit into
the opening without the use of tools.
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