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Summary of Contents for Port A Cool PAC2K36EP
- Page 1 PORT-A-COOL ® Series 2000 OWNERS MANUAL for Hazardous Location Units U.S. Patent 6,223,548 U.S. Patent D 362,905 U.S. Patent 6,502,414 FOR ELECTRIC MODELS PAC2K36EP PAC2K48EP ® manufactured by port-a-cool, llc...
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Page 3: Maintenance And Storage
PORT-A-COOL ® Evaporative Cooling Units OWNERS MANUAL HAZARDOUS LOCATION MODELS PAC2K36EP AND PAC2K48EP (BUILT TO: CLASS I, GROUP C & D) INTRODUCTION A. What is evaporative cooling? B. Humidity and Evaporative Cooling. C. Evaporative Cooling and the PORT-A-COOL® unit. II. SETUP A. Unpacking the PORT-A-COOL® unit. B. Removing the Cooling Pads. C. Connecting the Water and Electricity. III. OPERATING INSTRUCTIONS A. Placement of the PORT-A-COOL® unit. B. Filling with Water. C. Starting the Pump and Adjusting the Water Flow. D. Starting the Fan. IV. MAINTENANCE AND STORAGE A. Daily Maintenance... -
Page 4: What Is Evaporative Cooling
I. INTRODUCTION The PORT-A-COOL® unit is a fully self-contained, portable, high efficiency evaporative cooler that is proudly made in America at our factory located in Center, Texas. A. What is Evaporative Cooling? When trying to understand evaporative cooling, it may be best to think of air as being like a sponge, in that regard, air has an ability to absorb moisture that it comes in contact with. The amount of moisture that the air will absorb depends on the state of the air, or specifically, how much moisture the air already contains and the temperature of the air. If the air is warm and contains only a small amount of moisture, it will more readily absorb moisture. As air cools, its volume decreases, and with it, its ability to absorb moisture decreases. The term “relative humidity” describes the quantity of water in the air in relation to its total capacity. Any volume of air at any given temperature has an ability to hold a certain quantity of moisture. If the air con- tains 20% of its total capacity to hold moisture, the relative humidity is said to be 20%. Whereas, a humidity of 100% indicates that the air at this temperature and pressure is holding all the moisture it can. If the air has less... -
Page 5: Humidity And Evaporative Cooling
For actual temperature drops refer to Appendix A. In simple terms, evaporative cooling is nature’s way of cooling. The PORT-A-COOL® unit utilizes the same phenomenon, but in an extremely efficient manner. B. Humidity and Evaporative Cooling. A given volume of air at a certain temperature and pressure has the ability to absorb and hold a certain amount of water vapor. If that volume of air contains 50% of the amount of moisture that it is capable of holding, it said to be at 50% relative humidity. The higher the temperature of the air, the higher the amount of moisture it is capable of holding. Any change in the temperature without a corresponding change in the pressure results in an increase or decrease in the amount of water vapor the air can hold. If the temperature increases without an increase in the pressure, the result is a decrease in the relative humidity, and thus an increase in its ability to hold moisture. That is to say that in the morning the humidity may be high, but as the day passes and the temperature increases the relative humidity will naturally decrease. The extent to which relative humidity decreases through the day can be affected by local weather sys- tems and proximity to large bodies of water. If an increase in temperature accompanied by a weather system containing moisture moves in, then the drop in humidity will not be as great. Nevertheless, the fact remains that relative humidity does drop as air temperature increases. In fact, for every 20˚F rise in temperature, the mois- ture-holding ability of air doubles. For instance, if the temperature of the air was 70˚F and the relative humidity was 100% at 5 a.m., and the temperature increased to 90˚F at noon, the moisture holding ability of the air would double. As a result, the air would now be holding only half of the moisture it is capable of holding, and the rela- tive humidity of the air would drop to 50%. The hotter the day, the drier the air becomes, and the more cooling that can take place through the evaporation of water. This means that when the day gets hot enough to require cooling, the relative humidity will be much lower than in the morning and will allow an evaporative cooling device to work more effectively. Since any evaporative cooling device must evaporate water to achieve cooling, more water vapor is put into the air. As the ambient relative humidity increases, it becomes more difficult to put moisture into the air. The efficiency of any evaporative cooling device is directly related to its ability to evaporate water (cooling the air) at a given relative humidity. A unit with low efficiency will cool only at low relative humidity levels, while a unit with high efficiency can achieve effective cooling at much higher humidity levels. PORT-A-COOL® Hazardous Location Units... -
Page 6: Evaporative Cooling And The Port-A-Cool® Unit
C. Evaporative Cooling and the PORT-A-COOL® unit. The PORT-A-COOL® unit is the state-of-the-art, high efficiency, portable evaporative cooling system that utilizes high efficiency KüüL® brand, rigid cooling media, manufactured with the patent pending “thru-cure” ™ process.The PORT-A-COOL® unit’s unique patented housing enclosure, along with the KüüL® brand high effi- ciency cooling media, allows the unit to cool effectively in very high relative humidity conditions. Conditions that other portable evaporative cooling devices, such as the old style “swamp coolers”, cannot approach. The public has an initial tendency to equate the PORT-A-COOL® unit with the “swamp cooler,” types of evaporative coolers and, in reality, the only thing that they have in common is that they are both evapora- tive coolers, much as the 1973 model automobile and 2001 model automobile are both cars. The key to efficient evaporative cooling is using a specially designed, high efficiency, rigid cooling media contained in a properly designed housing to insure effective directing of the air over the water saturated media at the proper velocity. The PORT-A-COOL® unit has incorporated all of these features and more. As explained in PART B of this section, the effectiveness of the PORT-A-COOL® unit is best appreciated when it is above 85˚F and below 75% relative humidity. By the time the outside temperature reaches 85˚F, the humidity is almost always below 75%. Generally, as one goes up, the other goes down. For actual temperature drops refer to the charts of Appendix A. PORT-A-COOL® Hazardous Location Units... -
Page 7: Connecting The Water And Electricity
The PORT-A-COOL® unit should now be exposed to allow removal of the cooling media (pads). The front flap must be removed to allow access to the cooling pads. Start with the center pad, which should be tilted out from the top and lifted out of the drain trough. The two pads to either side of the center pad may then be removed in the same manner. Should you desire to remove the two outside pads, they must first be pulled sideways toward the center of the PORT-A-COOL® unit until they clear the side retainer. They may then be removed as the other pads. Removal of the pads allows for inspection of the interior of the unit. Make sure all connections are tight and both motor and pump are secure. D. Connecting the water and electricity. Water Connection (PORT-A-COOL® unit must be upright and on a level surface.) After the PORT-A-COOL® unit has been thoroughly tested at the factory, the special female/female adapter is connected to the brass bulkhead connector on the left side of the PORT-A-COOL@ unit (when looking at the fan side). Simply attach a standard garden hose to the brass female/female adapter. Verify that the rubber hose washer is in place before attaching, and tighten the fitting to guarantee that a secure connection is made. Once the hose connection is made, water may be turned on to the PORT-A-COOL® unit. Water should now be entering through the float valve to fill the sump tank. To verify that your connections are well made, manually lift the red float in the float valve until it seats against the top of the valve housing. The water flow should stop and the inlet connections may now be visually checked for leaks, paying particular attention to the hose connection to the float valve and the connections to the bulkhead fitting, these connection may loosen during shipment. -
Page 8: Electrical Requirements
Water supply inlet pressure should be limited to 50 psi maximum. The cooling pads may now be replaced by reversing the removal operation above in Section I. Paragraph B. Electrical Connection PORT-A-COOL® unit must be upright and sitting on caddy with cooling pads installed! These models utilize a single power cord and control switches. The power cord on this unit is 50’ of 14-gauge 3-wire grounded cord with out plug, so the unit can be wired to meet local code requirements. Check the chart below to determine what the electrical requirements for your specific model may be. The use of separate multiple outlet devices is not recommended. When making electrical connections, insure that local and national codes are adhered to. -
Page 9: Filling With Water
PORT-A-COOL® unit can be exhausted from the area being cooled. This is to prevent the unit from recirculating air that has already been through the cooling process. A primary consideration when actually deciding where to place PORT-A-COOL® unit is the direction of the air flow. The PORT-A-COOL@ unit creates a fan-shaped air pattern that disburses the air over a large area. This pat- tern may be disturbed or broken up by obstacles such as shelves, work benches, etc. It is important to insure that a clean, unbroken path for the air from the PORT-A-COOL® unit is provided to the maximum extent possible. It may be desirable to raise the PORT-A-COOL® unit above any low obstructions in order to increase the overall coverage. When raising the height of the PORT-A-COOL® unit, insure that the platform constructed for holding the PORT-A-COOL® unit is stable, well constructed, and will not allow the PORT-A-COOL® unit to tip over. The PORT-A-COOL® unit MUST be level on its base. When supporting with a platform, allow for the full weight of a functioning PORT-A-COOL® unit by including the weight of the water both in the sump tank and the added weight of the water-saturated cooling pads. The total weight could be in excess of 500 lbs. (227 kg.). When the PORT-A-COOL® unit is placed near a wall or other obstruction, it is recommended that a dis- tance of at least 3 feet from the wall or obstruction to the face of the cooling pads is maintained. This allows the unrestricted flow of Warm air to the back of the PORT-A-COOL® unit. When using multiple PORT-A-COOL® unit in close proximity, be sure to aim the PORT-A-COOL®... - Page 10 It is important to insure that the spray bar is properly adjusted when first starting the water flow in the PORT-A-COOL® unit. Adjusting the flow of water from the spray bar is accomplished by using the SPRAY BAR ADJUSTMENT VALVE on the side of the unit.
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Page 11: Daily Maintenance
Ill. MAINTENANCE & STORAGE Very little maintenance is actually required on the PORT-A-COOL® unit. The primary topic which accounts for most of the maintenance on the PORT-A-COOL® unit is cleanliness. Keeping the PORT-A-COOL® unit clean will do more than any other single item to keep your new PORT-A-COOL® unit in peak operating condition. The rug- ged, corrosion-resistant construction of the PORT-A-COOL® unit and industrial grade components make for the low maintenance characteristics of the PORT-A-COOL® unit. A. Daily Maintenance Daily maintenance is really more an operational consideration than actual maintenance. On a daily basis, the pump should be turned off approximately l5 minutes before the fan is turned off. This will allow the cooling pads to dry out and help extend their life, helping to control the growth of algae, mildew, mold, bacteria and other odor- causing elements. B. Weekly Maintenance At the end of the week or at a scheduled time, the unit should be shut down and the sump tank should be drained. This is accomplished by closing the Spray Bar Adjustment Valve and opening the Drain Valve. If it is desired, a hose may be attached to the Drain Valve to direct the drained water to a remote disposal area. Once the Drain Valve is open, starting the pump will drain the unit. Once the sump is drained and the power disconnected, the pads may be removed to allow inspection of the sump tank. Assuming that the PORT-A-COOL® unit is in a dusty environment, dust will be collected in the sump tank. This dirt may be vacuumed out using a wet/dry shop vacuum and wiped clean with a cloth. The inlet strainer should be removed, inspected and cleaned. It is located at the bottom end of the pump siphon hose assembly. C. Storage Storage of the PORT-A-COOL® unit is very simple. -
Page 12: Troubleshooting & Repair
V. TROUBLESHOOTING / REPAIR NOTICE: POWER CORD MAY BE REPLACED ONLY BY THE MANUFACTURER OR QUALIFIED AGENT!! A. Troubleshooting The most common problems encountered with a PORT-A-COOL® unit are operational problems. The PORT-A-COOL® unit consists of three systems. It is important to determine which system of the PORT-A-COOL® unit the problem is associated with. Certain problems may be associated with more than one system. When determining which system that the problem is associated with you must first define the problem, i.e., the pump is not running. Although this might seem a bit over-simplified, several things may cause a particu- lar problem. So while defining the problem, a careful check of all systems should be made to fully understand the extent of the problem. If you have a complete understanding of all the systems of the PORT-A-COOL® unit and how they depend on each other, it becomes much simpler to define and solve any problems. Although the PORT-A-COOL® unit is designed to be simple to maintain, it will be necessary to have some basic hand tools (screwdrivers, pliers, adjustable wrenches, etc.) as well a volt/ohm meter for troubleshooting the electrical system. PORT-A-COOL® Hazardous Location Units... -
Page 13: Fan System
FAN SYSTEM CAUTION Please use caution when troubleshooting or repairing all electrical compo- nents. Be certain that all power is disconnected from the PORT-A-COOL® unit before the cooling pads are removed to gain access to the fan. BELT DRIVE MODELS... -
Page 14: Water System
The Water Delivery System consists of two assemblies: A) The Water Inlet assembly and B) The Plumbing assembly. The Water Inlet assembly is made up of four components: 1) The water supply connection hose, 2) The bulkhead fit- ting, 3) The float valve connection hose and 4) The float valve. The Plumbing assembly consists of three elements: 1) Riser (PVC components), 2) Drain Valve, 3) Spray Bar Adjustment Valve. The 16 inch model has no riser or valves. The Spray Bar Assembly consists of two components: 1) Spray Bar, 2) 4 foot connection hose. The pumps that actually move the water through the delivery system are discussed in the charts below. These charts indicate the major symptoms of problems that may be encountered with the Water System components. WATER INLET SYSTEM PROBLEM CHECK SOLUTION Floor at side of PORT-A-COOL® Water inlet hose is loose at Tighten connections unit is wet. supply hose or inlet hose is and/or replace loose at bulkhead fitting hose washers. PORT-A-COOL® unit overflows from Float valve hose is loose at Tighten connections and sump tank or is spitting water through fan. bulkhead fitting or at float valve. /or replace hose washers. Water pressure is too high Reduce water pressure by to allow float valve to shutoff. checking in-line reducer. (50 psi max.) Float valve is not seating properly. Check for particles in valve. Replace float valve. PORT-A-COOL® Hazardous Location Units... -
Page 15: Plumbing Assembly
SPRAY BAR ASSEMBLY (ALL MODELS) PROBLEM CHECK SOLUTION Holes in spray bar blocked Remove and clean spray bar. Too many dry streaks in the pads. by foreign material. Clean individual holes. Water spitting from the unit. Hose connection loose. Tighten hose. Replace hose and washer. Reseat spray bar end caps BRONZE PUMP (PAC2K36EP and PAC2K48EP Only) PROBLEM CHECK SOLUTION Pump motor will not run when Power cord, Reconnect power, switch is turned on. switches, circuit breaker, etc. reset breaker. P ump motor hums when switch Object jammed into impeller blade. Remove object. Prime pump. is turned on, but does not Air Locked. -
Page 16: Repair Procedures
2. The customer / distributor can call Tech Support to get an RMA number to send the defective part back to Port-A-Cool, LLC. Once the part is received by Port-A-Cool, LLC, a replacement part will be sent at no charge. Information needed to get an RMA number: 1. The UNIT serial number. 2. The UNIT model number (ex. PAC2K363S) 3. The part number or description of the part to be replaced. Only major component parts need an RMA number, i.e. fans, motors, pumps, and some plumbing parts. For replacement of small parts, the serial and model numbers are still required, but the parts do not need ot be returned to Port-A-Cool, LLC. For warranty replacement parts call PORT-A-COOL® Technical Support at 1-888-266-5243. FAX: 936-598-1431 or support@port-a-cool.com. Shipping Address Mailing Address: Port-A-Cool, LLC Port-A-Cool, LLC 721 FM 2468 P.O. Box 2167 Center, Texas 75935 Center, Texas 75935 B. Port-A-Cool® Unit Limited Warranty For one year from date of installation, Port-A-Cool, LLC, warrants any original component part or parts of the Port-A-Cool® evaporative unit found, upon examination by factory authorized personnel, to be defective in material or workmanship. All transportation charges on parts submitted for replacement or repair under this warranty must be borne by the purchaser. If said equipment develops such defects within this period, it will be repaired or replaced at our option. For breach of any implied or written warranty on this product, Port-A-Cool, LLC, shall not be liable for any incidental or consequential damages. This warranty is declared void if the equip- ment if found to have been misused, abused or tampered with by unauthorized personnel. Due to warranty limits placed on our products by the original manufacturers, our warranty is limited on manufactured units and their original component parts as well as replacement parts to a total of one (1) year after the date of installation. PORT-A-COOL® Hazardous Location Units... - Page 17 DRY BULB TEMP. °F OUTPUT TEMP. Temp. °C Temp. °F Difference Drop °C °F 32.2 90 41 29.5 15.6 60 35.0 95 43 31.0 17.8 64 37.8 100 44 31.7 20.0 68 40.6 105 44 31.7 22.8 73 43.3 110 44 31.7 25.6 78 46.1 115 45 32.4 28.3 83 WET BULB TEMPERATURE Wet Bulb Temperature @ Current Humidity Level DRY BULB TEMPERATURE Current Ambient Air Temperature TEMPERATURE DIFFERENCE Dry Bulb Temp Minus Wet Bulb Temp TEMPERATURE DROP Temperature Difference Multiplied by 72% OUTPUT TEMPERATURE Dry Bulb Temperature Minus Temperature Drop PORT-A-COOL® Hazardous Location Units...
- Page 18 DRY BULB TEMP. °F OUTPUT TEMP. Temp. °C Temp. °F Difference Drop °C °F 29.4 85 24 17.3 20.0 68 32.2 90 25 18.0 22.2 72 35.0 95 25 18.0 25.0 77 37.8 100 25 18.0 27.8 82 40.6 105 25 18.0 30.6 87 43.3 110 25 18.0 33.3 92 WET BULB TEMPERATURE Wet Bulb Temperature @ Current Humidity Level DRY BULB TEMPERATURE Current Ambient Air Temperature TEMPERATURE DIFFERENCE Dry Bulb Temp Minus Wet Bulb Temp TEMPERATURE DROP Temperature Difference Multiplied by 72% OUTPUT TEMPERATURE Dry Bulb Temperature Minus Temperature Drop PORT-A-COOL® Hazardous Location Units...
- Page 19 DRY BULB TEMP. °F OUTPUT TEMP. Temp. °C Temp. °F Difference Drop °C °F 23.9 75 13 9.4 18.9 66 26.7 80 13 9.4 21.7 71 29.4 85 13 9.4 24.4 76 32.2 90 13 9.4 27.2 81 35.0 95 14 10.1 29.4 85 37.8 100 13 9.4 32.8 91 WET BULB TEMPERATURE Wet Bulb Temperature @ Current Humidity Level DRY BULB TEMPERATURE Current Ambient Air Temperature TEMPERATURE DIFFERENCE Dry Bulb Temp Minus Wet Bulb Temp TEMPERATURE DROP Temperature Difference Multiplied by 72% OUTPUT TEMPERATURE Dry Bulb Temperature Minus Temperature Drop PORT-A-COOL® Hazardous Location Units...
- Page 20 DRY BULB TEMP. °F OUTPUT TEMP. Temp. °C Temp. °F Difference Drop °C °F 18.3 65 8 5.8 15.0 59 21.1 70 8 5.8 17.8 64 23.9 75 9 6.5 20.6 69 26.7 80 9 6.5 23.3 74 29.4 85 9 6.5 26.1 79 32.2 90 9 6.5 28.9 84 WET BULB TEMPERATURE Wet Bulb Temperature @ Current Humidity Level DRY BULB TEMPERATURE Current Ambient Air Temperature TEMPERATURE DIFFERENCE Dry Bulb Temp Minus Wet Bulb Temp TEMPERATURE DROP Temperature Difference Multiplied by 72% OUTPUT TEMPERATURE Dry Bulb Temperature Minus Temperature Drop PORT-A-COOL® Hazardous Location Units...
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