Daewoo DSB-071LH, Split Airconditioning System owner manual Test RUN, Pump Down

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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. This is normal operating and Test Run position.

•Valve Position Half Open

With the narrow tube valve stem is turned to the halfway-down position. This position is used for pressure measure- ment 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.

Pump Down Procedure

1.Connect a low-pressure gauge manifold hose to the charge port on the wide tube service valve.

2.Open the wide tube service valve halfway and purge the air from the manifold hose using the refrigerant gas.

3.Close the narrow tube service valve (all the way in).

4.Turn on the unit’s operating switch and start the cooling operation.

5.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.

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Contents DSB-071LH Safety Instructions Important NotesContents Basic Accessories Accessories Supplied with the UnitWall Bracket Concrete Nails Remote Controller Copper TubingOptional Accessories Accessories not Supplied with the UnitAccessories 1, 2, 3, 4, 5, 6, 7 Description Qty Material SizeInstallation Diagram OverviewInstalling the Wall Bracket InstallationSelecting a Site Brown Blue Blue Black Yellow/Green Mounting the Indoor Unit To connect the copper tubes, follow the procedures below Connecting Copper TubesPreparing the Copper Tubing not Included Connecting the Drain Hose To connect the drain hose, follow the procedures belowBlack Tubing AIR Purging with Vacuum Pump Test RUN AIR PurgingLeak Test Evacuation Finishing the jobTest RUN Pump DownAir Cleaning Filters LCD Remote ControllerLocation of Controls Indoor UnitIndoor Unit Display Remote Controller Remote DisplayConnecting the AC Cord Setting the Unit for Remote OperationThree Minute Compressor Delay OperationHOW to Install Batteries Celsius to Fahrenheit Conversion ChartTo SET the Unit to Auto Mode SET Unit to Quick ModeTo SET Unit to Cool Mode FAN SpeedsTo SET Unit to Dehumidifier Mode To Operate FAN onlyTo SET Unit to Heat Mode To Select the FAN DirectionTo SET the on Timer Mode To SET the OFF Timer ModePress the Timer OFF button once to enter the Timer screen Play. For example, if it is 800 P.M.To Cancel Sleep Mode To SET Unit to Sleep ModeEmergency Operation Cleaning the Indoor Cover CHANGING/CLEANING the AIR FiltersInsert cleaned or new black fil- ters back into the unit Care and Maintenance PrecautionsAfter the Season Before the SeasonSymptoms Possible Cause Possible Solutions Troubleshooting GuidePush EMERGENCY/REMOTE Specifications Model
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