PWC series Portable Water-Cooled Spot Cooler ENGINEERING, INSTALLATION AND SERVICE MANUAL PWC60 PWC12 Form EISM-PWC 02272017
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 - 12 Options / Special Order........................... 13 Installation.....................
GENERAL INFORMATION The OceanAire PWC 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 PWC models come with a 10-foot power cord for electrical connection and added mobility in service.
PWC SPECIFICATIONS NOTES 1. Dedicated Circuit and Time Delay fuse or circuit breaker are recommended 2. Cooling Capacity is total BTUH at 80ºDB/67º WB return air, with 85° EWT and 105° LWT 3. CFM with free discharge 4. Cooling EER is determined at high fan speed 5. Sound Pressure, dB at 5 feet, commercial operation 6.
STANDARD FEATURES CABINET The PWC-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 PWC units are equipped with a non-programmable electronic thermostat.
APPLICATIONS SPOT COOLER The PWC 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 PWC is it operates as a room air conditioner because water is used as the means for heat rejection.
ELECTRICAL CONFIGURATION All PWC Series units are equipped with a standard 10-foot long service cord with plug configurations and receptacle requirements as shown in this chart. PWC1211, PWC1811, PWC2412 and PWC3612 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.
USE OF EXTENSION CORDS CAUTION FOR MODELS PWC1211 AND PWC1811 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 PWC2412 AND PWC3612 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 PWC6012 AN EXTENSION CORD CAN BE USED PROVIDED IT IS RATED AT LEAST 30 AMPS @ 250 VOLTS
PWC ACCESSORIES NOZZLE KIT DISCHARGE DUCT ADAPTER ROUND FLEX-DUCT (SOLD SEPARATELY) EVAPORATOR RETURN AIR PLENUM ROUND FLEX-DUCT (SOLD SEPARATELY) HOSE KIT 7
PWC ACCESSORIES NOZZLE KIT NK-1 NK-2 2NK-3 (2 X 4-Inch) (2 X 6-Inch) (2 x 8-Inch) PWC12 PWC18, 24 PWC36, PWC60 EVAPORATOR RETURN AIR PLENUM DEP-10 (10-Inch Round) 2DEP-12 (12-Inch Round) DEP-16 (16-Inch Round) PWC12 PWC18, 24 PWC36, 60 DISCHARGE DUCT ADAPTER DDA-6 (6-Inch Round) DDA-10 (10-Inch Round) 2DDA-16 (16-inch Round) PWC12 PWC18, 24 PWC36, PWC60 HOSE KIT HK-1 HK-2 HK-5 10FT 25FT 40FT PWC 12, 18, 24 PWC 12, 18, 24 PWC 12, 18, 24 HK-3 HK-4 HK-6 10FT 25FT 40FT PWC 36, 60 PWC 36, 60 PWC 36,
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.
ACCESSORIES EVAPORATOR RETURN AIR PLENUM Evaporator return air plenums are available for installations where it is required to duct air to the inlet of the evaporator. The evaporator return air plenums allow the user to connect round duct (flexible or rigid) to the return air intake to reduce air noise and increase the number of options for solving difficult cooling problems. The plenum attaches to the front of the unit, replacing the return air grille.
ACCESSORIES Discharge Duct Adapter Discharge duct adapters are available for applications where ducted evaporator discharge is required. The adapters can be easily installed on the unit without fasteners, and be installed for either vertical or horizontal ducting. The standard discharge grille is removed and the DDA is attached in the grille opening. DDA-6 for PWC12, converts the evaporator discharge to a 6-inch diameter round duct.
ACCESSORIES Hose Kit Hose kits are available in lengths of 10, 25, and 40 feet. Each hose kit allows for convenient installation of the PWC, while allowing for portability within the allowable space. NOTE —When using these hoses in applications with water pressures exceeding 50 PSIG, a water pressure reducing valve must be installed in the water supply line prior to the hose kit; otherwise warranty on the hose kits will be void.
SPECIAL ORDER ITEMS In some applications, units can be manufactured with optional components for added performance and longevity. Below are a few of the PWC options that are available. Consult your distributor for pricing and availability. CUPRO-NICKEL CONDENSER When chemically treated water, salt water or brine, is used in the condenser coil, it is recommended that the PWC be equipped with a 90/10 Cupro-Nickel condenser coil.
INSTALLATION INSTRUCTIONS RECEIVING—INSPECTION Upon receiving your unit, inspect the packaging for any damage. All units are shipped on a skid, and packaged in a triple-wall carton for added protection. BEFORE INSTALLING Check the unit for any damage. All OceanAire products are thoroughly inspected at the factory and carefully packaged. If any damage is evident, contact OceanAire IMMEDIATELY.
THERMOSTAT OPERATION FAN SLIDE SWITCH The FAN Slide Switch allow you to set the fan mode from ON (fan is on all the time) to AUTO (fan cycles under thermostat control) MODE SLIDE SWITCH To turn the unit ON, slide the Mode Slide Switch down to the COOL position. To turn the unit OFF, slide the Mode Slide Switch to the OFF Position. TEMPERATURE BUTTONS Once the MODE switch has been put into the COOL mode, push the corresponding arrow button to lower or raise the set point to the desired temperature.
WATER VALVE ADJUSTMENT All PWC units come equipped with an automatic pressure regulated water valve which controls the condenser water flow rate. The water valve will open when the system is running, and will adjust the water flow rate based on the temperature of the supply water. In some cases, water temperatures can cause the valve to open and close at a high rate, causing a “chattering” condition in the water supply line. In these cases, it is recommended that the water valve be adjusted. 1.
PWC INTERIOR Evaporator Blower High Pressure Reset Switch Evaporator Coil Water Valver Condensate Pump Control Box Compressor 17
REPLACEMENT PROCEDURE FOR PARTS IT IS RECOMMENDED THAT ALL OCEANAIRE UNITS BE SERVICED BY A LICENSED TECHNICIAN WARNING—TO AVOID INJURY, DISCONNECT UNIT POWER PRIOR TO SERVICING A. FAN MOTOR 1. Remove cabinet left-side panel (when looking at the front of the unit). 2. Evaporator fan motor—disconnect evaporator motor wires from evaporator fan contactor and fan speed rocker switch. 3.
TROUBLESHOOTING GUIDE The following steps and procedures are recommended for correcting the problems indicated. In the event that the problem can not be corrected, service may be required. SERVICE SHOULD BE PERFORMED BY A QUALIFIED AIR CONDITIONING SERVICE TECHNICIAN PROBLEM: UNIT DOES NOT POWER UP CAUSE: Power interruption REMEDY: Check LCDI (if equipped) and reset. Check external power supply making sure that the disconnect is ON. Check for blown fuses or tripped circuit breakers.
PREVENTIVE MAINTENANCE PWCs are designed to last a long time and to give maximum performance and reliability with minimum maintenance.
PIPING SCHEMATIC EVAPORATOR COIL SUCTION LINE EVAPORATOR BLOWER AIR CAPILLARY TUBES WATER OUT FILTER/DRIER ACCESS VALVES HP RESET CONDENSER COIL DISCHARGE LINE WATER IN WATER VALVE COMPRESSOR PIPING SCHEMATIC Water-Cooled Spot Cooler 21
WIRING SCHEMATIC FOR PWC1211, PWC1811, PWC2412, and PWC3612 07182016 22
WIRING SCHEMATIC FOR PWC6012 07182016 23
THREE PHASE MONITOR Three-Phase units are equipped with monitors for motor protection. The OceanAire Three-phase Monitor safeguards the unit against incorrect compressor rotation, low-voltage and/or loss of power in any one of the power legs. The monitor is installed in the control box and is equipped with an LED for diagnosis of an improper electrical condition (see diagrams below). When power is connected, the compressor WILL NOT engage until the monitor start delay has timed out.
WIRING SCHEMATIC FOR PWC3632 25
WIRING SCHEMATIC FOR PWC6032 26
WIRING SCHEMATIC FOR PWC3634 and PWC6034 27
LIMITED WARRANTY The Manufacturer (OceanAire, Inc.) warrants to the original owner that the Product will be free from defects in material or workmanship for a period not to exceed one (1) year from date of installation. If upon examination by the Manufacturer, the Product is shown to have a defect in material or workmanship during the warranty period, the Manufacturer will repair or replace, at its option, that part of the Product which is shown to be defective.
END USER INFORMATION MODEL: SERIAL NUMBER: DATE PURCHASED: INSTALLED BY: DATE INSTALLED: For Technical Support, or to locate a distributor for service parts, contact OceanAire at (847) 583-0311 or 1-866-GETAIRE (438-2473). Please indicate the Model Number and Serial Number of the unit to assure proper information and service parts.
TECH NOTES Form EISM-PWC 02272017
