Ocean Aire PAC60, PAC12 Service Manual
ENGINEERING, INSTALLATION AND SERVICE MANUAL
PAC60
PAC12
PAC series
Portable Air-Cooled Spot Cooler
Form EISM-PAC 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
Condensate............................................. 7
Accessories……….................................. 8 - 14
Inspection/Installation.............................. 15
Deluxe Electronic Controller.................... 16
SERVICE
Replacement Parts Procedure................. 17
Troubleshooting Guide............................. 18
Preventive Maintenance........................... 19
Interior View.............................................. 20
DIAGRAMS/SCHEMATICS
Piping Schematic………………………… 21
Single Phase Wiring Diagrams................ 22-23
Three Phase Monitor............................... 24
Three Phase Wiring Diagrams................. 25 - 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 PAC spot cooler. It is recommended to read and fully understand the
instructions outlined within this manual, before operating the PAC unit.
As with all commercial air conditioning equipment, it is recommended to have the PAC
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 PAC unit when contacting the factory.
NOMENCLATURE
P AC 18 1 1
PORTABLE VOLTAGE
AIR-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 PAC series is a portable air-cooled spot cooler designed for permanent or
temporary cooling applications. The entire air conditioning unit has been built in a
premium sheet metal cabinet, equipped with heavy-duty casters for mobility. All PAC
models come standard 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 grille located on the upper-front of the unit, while rejecting
heat from the top of the unit. The PAC models range in cooling capacities from 12,000
BTU/HR to 60,000 BTU/HR to satisfy most space cooling requirements.
The PAC series is a self-contained unit with the entire cooling system (blower assemblies,
electrical and refrigerant components) neatly arranged in a gray polyester powder coated
metal cabinet. When connected to the proper source of electrical power, a 24-volt
thermostat controls the PAC unit to provide the desired level of comfort and cooling.
A wide variety of accessories and factory installed options are available for the PAC
series 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.
1
2
SPECIFICATIONS
PAC
STANDARD FEATURES
CABINET
The PAC 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 handles
and swivel casters for portability and convenient set-up.
ELECTRONIC THERMOSTAT
All PAC 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 short-cycling, there is a
built-in time delay.
FAN SPEED CONTROL
A two position rocker switch, located next to the thermostat, provides the user with the option
of running the evaporator fan at high-speed or low-speed.
CONDENSATE TANK/PUMP
PAC series units come equipped with a means for handling the condensate generated
during the cooling process. All units, except the PAC60 models, come equipped with a
condensate tank. The tank can be easily removed from the unit and emptied as needed.
The PAC60 models come equipped with an Automatic Condensate Pump that removes the
condensate. The pump comes with a 20 foot long vinyl hose that allows for the removal of
the condensate water to a drain. The automatic pump is capable of a 20ft vertical lift, to
handle various installation requirements.
CONDENSATE ALARM LIGHT
On the front of all PAC models, there is a Condensate Alarm Light (RED) located near the
thermostat. For models other than PAC60, the light indicates that the condensate tank is
full, and needs to be emptied. PAC60 units, the light indicates a condensate pump
over-flow condition where the pump is either disabled or restricted, and cannot remove the
condensate water, and must be serviced.
FILTERS
All PAC series units are equipped with washable filters at the air intakes. Electrostatic mesh
air filter located behind the evaporator return air grille serves to filter the air before it is
cooled. A 1/2” aluminum mesh filter serves to protect the condenser coil from dust build-up.
Both filters can be easily removed and cleaned.
HIGH PRESSURE SAFETY SWITCH
Located on the back of the PAC 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 switch
will cycle the compressor off, while the evaporator fan remains running. The compressor
can be re-started, once the condensing pressure has equalized, by depressing the “RESET”
button.
POWER CORDS
All PAC 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 a LCDI for added safety
features.
3
4
APPLICATIONS
COOLING MODE—SPOT COOLER
The PAC 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 for directional cooling.
AREA COOLER
When the PAC is installed in an open area, the condenser exhaust duct directs the warm
air away from the space, allowing the evaporator air to cool the specific area.
ROOM AIR CONDITIONER
When ducted properly, the PAC can be used as a room air conditioner to cool an enclosed
space. Using the condenser return air plenum, additional ceiling kit, and other
accessories, the PAC can then operate as a room air conditioner with the condenser air
isolated from the conditioned space.
PAC SERIES—OPERATION / DESCRIPTION
CONDENSER
AIR INLET
(Back of Unit)
CONDENSER FAN DISCHARGE
“HOT”
EVAPORATOR
FAN DISCHARGE
“COOL”
WASHABLE
GRILLE
AND FILTER
CONDENSATE
ALARM LIGHT
FAN SPEED
SWITCH
ELECTRONIC
THERMOSTAT
EVAPORATOR
RETURN
SERVICE CORD
All PAC series units are equipped with a standard 10-foot long service cord with plug
configurations and receptacle requirements as shown in this chart. PAC1211,
PAC1811, PAC2412 and PAC3612 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 PAC models.
A DAMAGED LCDI POWER SUPPLY CORD MUST BE
REPLACED WITH A NEW POWER SUPPLY CORD
OBTAINED FROM OCEANAIRE, AND NOT REPAIRED
UNIT/MODEL PLUG CONFIGURATION RECEPTACLE
115 VOLT
PAC1211
NEMA 5-15R
115 VOLT
PAC1811
NEMA 5-20R
208-230 VOLT SINGLE PHASE
PAC2412
NEMA 6-20R
208-230 VOLT SINGLE PHASE
PAC3612
NEMA 6-30R
208-230 VOLT SINGLE PHASE
PAC6012
NEMA 6-50R
208-230 VOLT 3-PHASE
PAC3632
PAC6032
NEMA L15-30R
460 VOLT 3-PHASE
PAC3634
PAC6034
NEMA L16-20R
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
20A-460 VOLT
NEMA L16-20P
5
ELECTRICAL CONFIGURATION
6
USE OF EXTENSION CORDS
CAUTION
FOR MODEL PAC1211 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 PAC1811 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 PAC2412 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 PAC3612 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 PAC6012 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 PAC3632 AND PAC6032 AN EXTENSION CORD CAN BE
USED, PROVIDED IT IS RATED AT LEAST 30 AMPS @ 250 VOLTS, 3 PHASE
FOR MODELS PAC3634 AND PAC6034 AN EXTENSION CORD CAN BE
USED, PROVIDED IT IS RATED AT LEAST 20 AMPS @ 600 VOLTS, 3 PHASE
SPECIAL NOTICE—THREE PHASE OPERATION
Models PAC3632, PAC3634, PAC6032 and PAC6034
All three-phase PAC models are equipped with a three-phase monitor for added compressor protection. The phase monitor, located in the control box, has a 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 this manual.
NOTICE - DO NOT OPERATE ANY THREE-PHASE UNIT WHILE BYPASSING
THE MONITOR. THIS WILL VOID THE WARRANTY.
7
MAXIMUM WATER LEVEL
4” FROM TOP OF TANK
This Side Up
FRONT
CONDENSATE TANK
“FULL” SWITCH
SPRING
CAP
HANDLE
WATER LEVEL
ADJUSTMENT
SCREW
HINGE
CONDENSATE TRAY
TANK LEVEL ADJUSTMENT INSTRUCTIONS
An adjustment screw is provided to vary the cut-off level
of the tank full switch. If less water is desired, turn the
adjusting screw clockwise (CW).
Turning the screw clockwise (CW),
will make the tank easier to remove.
MAXIMUM WATER LEVEL
4” FROM TOP OF TANK
CAUTION
UNPLUG UNIT BEFORE REMOVING
TANK TO ADJUST THE SET SCREW.
CONDENSATE
SUMP
TOP OF TANK
(WHEN PLACED IN UNIT)
SUMP DRAIN HOLE
“CON” WILL BE
DISPLAYED
CONDENSATE
For Models PAC1211, PAC1811, PAC2412, AND PAC3612, a 5-gallon polyethylene tank
is provided to collect condensate. The tank is located in the lower front section of the unit,
and can be accessed though the condensate tank door. When the high water level is
reached, a cut-out switch will AUTOMATICALLY cycle off the compressor/condenser fan.
8
NOTE - IT IS IMPORTANT TO SPECIFY MODEL NUMBER
AND SERIAL NUMBER WHEN ORDERING ACCESSORIES
PAC ACCESSORIES
*NOTE: PAC36 and PAC60 come with 16” duct flanges.
DUCT
FLANGE
CONDENSER
DISCHARGE
CONDENSER
RETURN
NOZZLE KIT
ROUND FLEX-DUCT
(SOLD SEPARATELY)
ROUND FLEX-DUCT
(SOLD SEPARATELY)
EVAPORATOR
RETURN AIR
PLENUM
DISCHARGE DUCT
ADAPTER
CEILING
PANEL
KIT
(CK)
CEILING
PANEL
KIT
(CK-PL)
CONDENSER
RETURN AIR
PLENUM
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