5 What is WELTEM portable air conditioner? Main FunctionSpot CoolICEN, portable air conditioner, provides spot cooling for large areas where cooling of the entire area is not feasible.Room CoolThis Air Conditioner can also be used in smaller areas, with the room cooling thermostatically controlled feature.
6 WELTEM Portable Air Conditioner What is WELTEM portable air conditioner?AdvantageCertified units - Electrically sound andstable ac units - listed to cUL, CE, CCC,ISO9001/14001, etc.Efficient cooling - These air conditionersneed no special electrical requirementssince all are single phaseQuick cooling - Sets up in minutes andcools a wide variety of environmentsSelf Diagnostic function – The alarmlight is activated if abnormal operationoccurs, and a code is displayed on thecontrol panel.WELTEM Portable Air ConditionerEfficient coolingSelf DiagnosticfunctionQuick coolingCertified unitsGood forRental market
7 What is WELTEM portable air conditioner? FeaturesDurablecompletely self-contained airconditioner housing within aninsulated cabinet ofgalvanized steelEasy to movethese air conditioners have4 heavy-duty,4-inch sturdycasters that will lastEasy to change andwashable filters2 filters for return air are easilyaccessible and dishwasher safeEasy access condensate tanklocated in the side of airConditioner uses auto-shut-offwhen tank is full, and easyaccess panel for emptyingtank is appreciatedFreeze protection controlturns the compressor off toprevent damage to AC when thecoil inside ac unit freezes.Minimum maintenance requiredclear instructions areprovided in owners manual .WELTEMPortable AirConditioner
8 What is WELTEM portable air conditioner? FeaturesUseful accessories includedwith air conditioners Top Exhaust Duct Adaptor,Ambient Air AdaptorCold Air Flange, Cold AirNozzle Kit, Extension Air DuctCompressor Protection DeviceCompressor operates in 2 minutesafter restarting the unit to protectthe compressor.Choice of continuousoperation or automatic timerfunction in which the timer willshut off the unit after thedesignated period of timeHigh Pressure Switcha pressure switch isused to shut down the system ifhigh pressure is detected.Two-level fan speeds2-speed control accessibleusing panel or remote controlUsing environmentally-friendlyR410a refrigerant gas to helpprotect the environment andthe ozone layer.WELTEMPortable AirConditioner
9 Application Portable Air Conditioner Server / Telecom Equipment spot RoomEquipment spotCoolingHealthcareIndustrialPortableAir ConditionerEmergencyCoolingOffices/SchoolsOutdoor/EventsVesselsMoisture RemovalMilitary Uses
12 Cooling cycle Operation Principle <Cooling Cycle> Pressure of the COOLANT is raised in the Compressor then sent to the Condenser, When the pressure of the COOLANT is higher than the level allowed, PRESSURE SWITCH work and COMPRESSOR stop until pressure is lowered to the level allowed.Exhaust the hot air using the fan in the CONDENSER, COOLANT becomes high temperature / high pressure liquid.The liquid flows to the CAPILLARY TUBE and pressure is lowered to the level which it can be evaporated easily.The liquid flows to the EVAPORATOR and gain the heat from the ambient warm air which was provided by fan from outside of the unit, The liquid become gas and the cooled air blows to the outside of the unit.The gas in the EVAPORATOR flows to the COMPRESSOR.Repeat from 1 to 5 cycle.<Cooling Cycle>
13 Self-Diagnostic function The alarm light is activated if abnormal operation occurs, and a code is displayed on the control panel. The compressor and condenser fan motor will stop operation. The evaporator fan continues to run for a further three minutes. If the fault is rectified within 3 minutes, the unit resumes operation.If the fault persists for more than 3 minutes, the evaporator fan also stops.The fault must be rectified before the unit can resume normalAlarm DisplayProblemCauseCorrective actionFrost Prevention Sensor&Abnormal temperature sensor valuea. Indoor heat exchanger temperature too lowb. TH3 temperature sensor has a loose orbroken connectiona. Do not use the air conditioner in ambient temperature is lower than 18℃b. Contact service centreRefrigerant high pressure switcha. Blocked air filterb. Blocked / kinked exhaust ductc. Ambient temperature is too higha. Clean air filterb. Ensure exhaust duct is not blockedc. Do not use the air conditioner in ambienttemperature higher than 45℃Contact service centre if problem persistsTH1 Outlet temperature sensor has a loose or broken connection.Contact service centreTH2 Inlet temperature sensor has a loose or broken connection.Compressor overloadeda. Ambient temperature is too highb. Unstable voltage supplyc. Defective compressora. Do not use the air conditioner in ambient temperature higher than 45℃b. Call service centre if problem persistsCondensate water levelCondensate tank alarma. Condensate tank is fullb. Condensate tank is not positioned properlya. Empty the water tankb. After installation of the water tank, press the SPOT/COOL or ROOM/COOL button to resume operation
15 Water cooled Split portable AC FeaturesTypical UseVery easy to installNo need for hot air ductNo need to supply water continuouslyQuiet in operationDurable metal constructionInstall heat exchanger up to 30 meters awaySelf diagnostic functionsAutomatic thermostat controlAvailable in high temperature up to 52℃Automatic timerUseful for rentalComputer server roomsTentsOfficesEvents MarqueesWare housesMilitary usesCommercial KitchensHospitalsSchoolsReception areas