User manual DAEWOO DSB-181LH

[. . . ] OWNER'S MANUAL SPLIT AIRCONDITIONING SYSTEM MODEL #: DSB-181LH S1 SAFETY INSTRUCTIONS PLEASE READ THE FOLLOWING SAFETY INSTRUCTIONS BEFORE INSTALLING AND OPERATING THE UNIT: This air conditioner meets strict safety and operating standards. The installer of this unit must install or service this unit so it operates safely and efficiently. Precautions When Wiring: · Do not plug in the unit until all connections (tubing, drain hose, mounting, etc. ) have been made and double-checked. · High voltages are present in this unit and are very dangerous. Improper connections or inadequate grounding can cause accidental injury. [. . . ] The following table shows the amount of time for evacuation: Outdoor Unit Indoor Unit Required time for evacuation when 30 gal/h vacuum pump is used If tubing length is less than 33 ft. When the desired vacuum is reached, close the "Lo" knob of the manifold valve and stop the vacuum pump. Manifold Valve Finishing the job 1. With a hex wrench, turn the narrow tube service valve Pressure stem counter-clockwise to fully open the valve. Turn the wide tube service valve stem counter-clockwise to fully open the valve. Lo Hi CAUTION: To avoid gas from leaking when removing the charge hose, make sure the wide tube service valve is fully open and turned all the way out. Loosen the charge hose connected to the wide tube service port slightly to release the pressure, then remove the hose. Replace the threaded cover on the wide tube service port and fasten it securely. This process is very important to prevent gas from leaking from the system. Replace the valve caps at both wide and narrow service valves and fasten them securely. The air conditioner is now ready to test run. . Charge Hose Vacuum Pump 13 INSTALLATION (CONTINUED) TEST RUN Check that all tubing and wiring have been completed correctly. Check again that the wide and narrow tube service valves are fully opened. Turn on the power and run the system. Service Valve Construction · Valve Position Closed The valve systems of both the wide and narrow tubes are turned all the way in. The unit is shipped from the factory in this position and it is also used for Pump Down and Air Purging. · Valve Position Fully Open The valve stems of both the wide and narrow tubes are turned all the way out. · Valve Position Half Open With the narrow tube valve stem is turned to the halfway-down position. This position is used for pressure measurement and gas charging. CAUTION: When opening or closing the service valve stem, be sure to use a hex wrench. PUMP DOWN Pump Down means collecting all refrigerant in the outdoor unit without loss in refrigerant gas. This is performed when the unit is to be relocated or the refrigerant circuit is serviced. CAUTION: Be sure to perform Pump Down procedure with the unit cooling mode. Connect a low-pressure gauge manifold hose to the charge port on the wide tube service valve. Open the wide tube service valve halfway and purge the air from the manifold hose using the refrigerant gas. Turn on the unit's operating switch and start the cooling operation. When the low-pressure gauge reading becomes 1 to 0. 5 kg/cm2 (14. 2 to 7. 1 psi), fully close the wide tube valve stem and then quickly turn off the unit. At that time, Pump Down has been completed and all refrigerant gas will have been collected in the outdoor unit. 14 OPERATING SECTION LOCATION OF CONTROLS INDOOR UNIT Electrostatic Filter Removes dust particles from the air. (Option Filter) Air In Emergency/ Remote Switch Slide to select the desired position. Indoor Cover Air Cleaning Filters Removes dust and prohibits germs. Sensor Wire Remote Sensor Indicators AIR OUT Fan Direction (Up/Down) Indicate the AC setting. Fan Direction (Left/Right) TE MP . [. . . ] To turn the unit off, slide the EMERGENCY/ REMOTE switch to the REMOTE position. EMERGENCY/REMOTE Switch TEST/EMERGENCY/REMOTE Switch 25 CHANGING/CLEANING THE AIR FILTERS To change or clean the two black air filters, follow the procedures below: 1. Open the indoor unit's cover and remove both black air filters by bending them slightly backward and the lifting out. 2. Remove the two small filters (Deodorizing and Electrostatic) from the indoor unit. 3. Examine the filters and determine if they need to be cleaned or replaced. [. . . ]