Contents Type of outdoor unit Design RVMH080GAM0 RVMC050CBM0 RVMH100GAM0 RVMH050CBM0 RVMC060GAM0 RVMH100GCM0 Model RVMC035EBM0 RVMC060GAM1 RVMH100FAM0 RVMC070FAM0 RVMC100GAM0 RVMH060GBM0 RVMC100FAM0 RVMH060GDM0 Chapter Preparation for Outdoor Unit Installation ....4 Deciding on Where to Install the Outdoor Unit .
Chapter Preparation for Outdoor Unit Installation ..4 Deciding on where to Install the Outdoor Unit ..5 Outdoor Unit Installation ..... . . 7 Connecting the Cable .
Preparation for Outdoor Unit Installation Moving the Outdoor Unit by Wire Rope Wire rope Fasten the outdoor unit by two 8m or longer wire ropes as shown at the figure. To protect damage or scratches, insert a piece of cloth between the outdoor unit and rope, then Plate protection cloth move the unit.
Deciding on Where to Install the Outdoor Unit Outdoor Unit The outdoor unit must NEVER be placed on its side or upside down, as the compressor lubrication oil will run into the cooling circuit and seriously damage the unit. Choose a location that is dry and sunny, but not exposed to direct sunlight or strong winds.
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Deciding on Where to Install the Outdoor Unit (cont.) Space Requirements for Outdoor Unit If there is no obstacle around the outdoor unit... Unit : mm 300 or 300 or more more 100 or 100 or 100 or 100 or more more more more...
Outdoor Unit Installation The outdoor unit must be installed on a rigid and stable base to avoid any increase in the noise level and vibration, particularly if the outdoor unit is to be installed in a location exposed to strong winds or at a height, the unit must be fixed to an appropriate support(wall or ground).
Outdoor Unit Installation (cont.) Make a drain outlet around the base for outdoor unit drainage. If the outdoor unit is installed on the roof, you have to check the ceiling strength and waterproof the unit. Outdoor Unit Support Outdoor Unit Outdoor Unit Anchor bolt Support...
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Connecting the Cable (cont.) Power Cable Specification Power Supply Type of Commu- 3 Phase Single Phase Earth outdoor nication Cable Cable Power Max/Min Power Power Power Max/Min unit MCCB Cable Length MCCB Length Supply Supply Cable 208- 3.5mm 253/187 230V~ 3Wires /60Hz 5.5mm...
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Connecting the Cable (cont.) Wiring Diagram of Power Cable When using ELBs for 3 phase and 1 phase Case 1 Power Supply Cut off the part A and B MCCB Part B Part A Single 3 Phase Electrical component box Phase 3 Wires MCCB...
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Wiring Diagram of Connection Cord Indoor Unit 1 Indoor Unit 2 Indoor Unit 3 Outdoor Unit Type A Outdoor unit - Max. length of communication cable : 120m - Whole length of cable : 240m - Allowable branches : 10 Connection Cord Specifications Communication Home server...
Piping and refnet joint selection Examples of using only Refnet joint (during 8 rooms installation) Outdoor unit Outdoor unit Outdoor unit Examples of using both Refnet joint and distributor kit (during 8 rooms installation) Outdoor unit Distributor kit Distributor kit Outdoor unit Distributor kit...
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Limitation when piping is installed by using only Refnet joint (during 6 rooms installation) Outdoor unit Outdoor unit Type A Type B-1 Type B-2 Type C Type D Type E Item Actual length Max. Distance of the ex) In case of Type E a+b+c+d+e+f ≤ 100m allowable remotest indoor unit Equivalent...
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Piping and refnet joint selection (cont.) Requirement when piping is installed using simultaneously both refnet joint and contributor kit (during 6 rooms installation) Outdoor unit Distributor kit Outdoor unit Type A Type B-1 Type B-2 Type C Type D Type E Item Actual length Max.
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Piping selection (Unit : mm) Outdoor unit Type A Type B-1 Type B-2 Type C Type D Type E Outdoor unit ~ The first refnet joint piping ø9.52 X t0.8 ø12.70 X t0.8 Liquid pipe Piping size Gas pipe ø19.05 X t1.2 ø22.23 X t1.2 ø25.40 X t1.2 ø28.60 X t1.2 Refnet joint ~ refnet joint piping...
Connecting the Refrigerant Pipe Refrigerant Piping The refrigerant pipe can be connected from the bottom or front of the outdoor unit. You have to use seamless copper pipe for the piping and check the length and height difference between indoor and outdoor unit. You should also check the pipe length after installing the refnet joint.
Performing Leak Test & Vacuum Drying Before completing the installation(insulation of the hose and piping), you must check that there are no gas leaks and remove air in the unit. Purge the refrigerant pipes and perform the vacuum test. The pressure should not be increased for 1 minute. Inject nitrogen into the pipes until the pressure becomes 2kg/cm at least.
Performing Leak Test & Vacuum Drying (cont.) Using Stop Valve To Open the Stop Valve Open the cap and turn the stop valve counterclockwise by using a hexagonal wrench. Service port Turn it until the axis is stopped. Do not apply excessive force to the stop valve and always use special instruments.
Insulation Once you have checked that there are no leaks in the system, you can insulate the piping and hose. To avoid condensation problems, place an insulator around each No gap refrigerant pipe. When insulate the pipe, be sure to overlap the insulation. You have to use more than 120°C insulation(T13.0 or thicker Acrylonitrile Butadien Rubber) for the gas refrigerant pipe.
Adding Refrigerant The outdoor unit is loaded with sufficient refrigerant for the standard piping. Thus, refrigerant must be added if the piping is lengthened. This operation can only be performed by a qualified refrigeration specialist. For quantity of adding refrigerant, refer to page 21. Check that the stop valve is closed entirely.
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How to Calculate the Quantity of Adding Refrigerant Outer diameter of 6.35mm 9.52mm 12.70mm 12.70mm(Type E) liquid refrigerant pipe Quantity of adding 50g/m 80g/m 120g/m 140g/m refrigerant per metre i.e. 3 indoor units (Type A) Quantity of adding refrigerant = Total length of piping x quantity of adding refrigerant per metre - 500g Arrangement : Outer diameter of liquid refrigerant pipe - outer diameter of gas refrigerant pipe - length of piping...
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Adding Refrigerant (Cont.) i.e. 3 indoor units (Type B-2) Quantity of adding refrigerant = Total length of piping x quantity of adding refrigerant per metre - standard quantity(1000g) Arrangement : Outer diameter of liquid refrigerant pipe - outer diameter of gas refrigerant pipe - length of piping 7200W 2000W...
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i.e. 5 indoor units (Type D) Quantity of adding refrigerant = Total length of piping x quantity of adding refrigerant per metre Arrangement : Outer diameter of liquid refrigerant pipe - outer diameter of gas refrigerant pipe - length of piping 5200W 3200W 3200W...
Checking Correct Grounding If the power distribution circuit does not have an earth or the ground does not comply with specifications, an grounding electrode must be installed. The corresponding accessories are not supplied with the air conditioner. Select an grounding electrode that complies with the specifications given in the illustration.
Setting up Option Switches Outdoor Unit PCB Rotary switch Rotary Switch You should display that how many indoor units are connected to the outdoor unit. Refer to the table below, then turn the arrow to appropriate position. Number of Number of Switch No.
Functions of KEY on the Outdoor Unit PCB KEY Functions Display b c e d b c e d SEG1 SEG2 SEG3 SEG4 Check mode RESET View mode Summary of KEY functions Function KEY 1 KEY 2 KEY 3 KEY 4 Number of (Displayed on SEG 3, 4) (Displayed on SEG 3, 4)
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Check Mode Pressing KEY 1 : Adding refrigerant for heat pump models - Test operation for heat pump models - Operation with no function. SEG 1, 2: Display communication status SEG 3, 4: Flicker with an appropriate KEY function Pressing KEY 2 : Adding refrigerant for cooling only models - Test operation for cooling only models - Operation with no function SEG 1, 2: Display communication status SEG 3, 4: Flicker with an appropriate KEY function...
Checking and Testing Operations To complete the installation, perform the following checks and tests to ensure that the air conditioner is operating correctly. Review all the following elements in the installation : Piping connection tightness to detect any gas leakages Connecting wiring Heat-resistant insulation of the piping Drainage...
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If both sides numbers are equal, your computer will perform the next stage. If 'E2' is displayed on the outdoor unit PCB at this time, you must check that you registered the number of indoor units and assigned addresses correctly. Then restart the tracking by pressing the key 3 in the outdoor unit.
Troubleshooting If an error occurs during the operation, it is displayed on the outdoor unit PCB. Display Explanation Remark SEG 1, 2 SEG 3, 4 Error about protection High temperature of Discharge (Protection control) control of outdoor unit SUMP COMP DOWN Reverse phase error (Protection control) COMP DOWN due to frozen Eva of indoor unit Error of momentary power failure (disappears when the unit is Off/On)
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Display Explanation Remark SEG 1, 2 SEG 3, 4 Self-diagnostic Breakaway of indoor unit eva sensor detection Breakaway of indoor unit eva out sensor (x : 0~F) Open error of electronic expansion valve Close error of electronic expansion valve Breakaway of eva mid and eva out sensors in indoor unit Total leakage of refrigerant in outdoor unit/Loading failure Breakaway of cond mid sensor in outdoor unit Open error of electronic expansion valve in outdoor unit (Detected once or more times)
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