Safety Precautions The following safety precautions must be taken when using your air conditioner. Risk of electric shock. • Can cause injury or death. • Disconnect all WARNING remote electric power supplies before servicing, installing or cleaning. • This must be done by the manufacturer or its service agent or a similar qualified person in order to avoid a hazard.
Contents Preparation for outdoor unit installation ............... ■ Air Conditioner and Accessories ................■ ............Deciding where to install the outdoor unit ■ Outdoor unit installation ..................■ Connecting the cable ................... 10 ■ Connecting the refrigerant pipe ................13 ■...
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Type of outdoor unit Design UH052EAMC UH094EAM1C Model UH105EAMC UH070EAM(1)C...
Air Conditioner and Accessories The following accessories are supplied with the air conditioner. The type and quantity may differ depending on the specifications. ◆ UH052EAMC Rubber legs Installation manual ◆ UH070EAM(1)C & UH094EAM1C Drain Plug...
Deciding where to install the outdoor unit Outdoor Unit The outdoor unit must not 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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Space Requirements for Outdoor Unit When installing 1 outdoor unit Unit : mm When the air outlet is opposite the wall When the air outlet is towards the wall 2000 or more 150 or more 600 or more When 3 sides of the outdoor unit are The upper part of the outdoor unit and blocked by the wall the air outlet is towards the wall...
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Deciding where to install the outdoor unit (Continued) When installing more than 1 outdoor unit Unit : mm When the air outlet is towards the wall 300 or more 600 or more 600 or more 600 or more When 3 sides of the outdoor unit are blocked by the wall 600 or more 600 or more When front and rear side of the outdoor unit is towards the wall...
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).
Connecting the cable Two electronic cables must be connected to the outdoor unit. The connection cord between indoor unit and outdoor unit. The power cable between outdoor unit and auxiliary circuit breaker. Specially for Russian and European market, before installation, the supply authority should be consulted to determine the supply system impedance to ensure compliance.
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Power Cable Specifications Power Supply Type of 3 Phase Single Phase Earth outdoor Cable Power Max/Min Power Power Max/Min Power unit MCCB Cable Length MCCB Length Supply Supply Cable Frame: 220- 2.5mm 1.6mm, Ø ±10% 240V~ 2 Wires Trip: or less 1 Wire /50Hz Frame:...
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Connecting the cable (Continued) Wiring Diagram of Power Cable Power Supply Power Supply MCCB Electrical component box Electrical component box MCCB Cable clamp Communication Communication Connection cord Single Phase AC220V Cable Cable Indoor Unit Indoor Unit ◆ You should connect the power cable into the power cable ◆...
- Connect the Connection Cord as seen as picture, and the torque of screw is 40~70kgf·cm Connecting the refrigerant pipe Refrigerant Piping System Pipe length or height Refrigerant piping system table UH052EAMC/UH070EAM(1)C/UH094EAM1C UH105EAMC Max. allowable length Actual pipe length L0 + H + L1 30m or less...
Connecting up and removing air in the circuit The air in the indoor unit and in the pipe must be purged. If air remains in the refrigeration pipes, it will affect the compressor, reduce to cooling capacity and could lead to a malfunction. Refrigerant for air purging is not charged in the outdoor unit.
Cutting / Flaring the pipes Make sure that you have the required tools available (pipe cutter, reamer, flaring tool and pipe holder). If you wish to shorten the pipes, cut it with a pipe cutter, taking care to ensure that the cut edge remains at a 90° angle with the side of the pipe. Refer to the illustrations below for examples of edges cut correctly and incorrectly.
Performing leak tests Before completing the installation (insulation of the hose and piping), you must check that there are no gas leaks. To check for gas leaks on the... Then, using a leak detector, check the... Outdoor unit Valves on sections A and B. Connecting the drain hose to the outdoor unit When using the air conditioner in the heating mode, ice may accumulate.
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.
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 19. Check that the stop valve is closed entirely.
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62.5g 100g 150g 175g 15.0m 450g 525g 187.5g 300g For example of UH052EAMC,if pipe length is 10.0m ,you would ❋ calculate (10.0-7.5)*25=62.5 Important information regulation regarding the refrigerant used Refrigerant type GWP value Refrigerant type GWP value This product contains fluorinated greenhouse gases covered by the Kyoto...
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 Display 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. Switch No.
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Setting up option switches (Continued) Reading data indicated on the display Number of Example Item press Display Meaning Adding refrigerant for heating mode Test operation for heating mode Adding refrigerant for cooling mode Test operation for cooling mode Pump Down for recovery of refrigerant Reset Discharge temperature of compressor °C...
Testing operations Check the power supply between the outdoor unit and the auxiliary circuit breaker. Single phase power supply: L, N Check the indoor unit. 2-1 Check that you have connected the power and communication cables correctly. (If the power cable and communication cables one mixed up or connected incorrectly, the PCB will be damaged.) 2-2 Check the thermistor sensor, drain pump/hose, and display are connected correctly.
Troubleshooting Outdoor unit If an error occurs during the operation, it is displayed on the outdoor unit PCB. Display Explanation Remark Error about protection High temperature of Discharge (Protection control) control of outdoor unit High temperature of outdoor heat exchanger (Protection control) Low pressure of outdoor (Protection control) Reverse phase error (Protection control) COMP DOWN to protect being frozen...
Optional parts list Receiver & Display Unit Accessories Concealed type Receiver & display unit Wire kit Receiver & STS 2S-2x10 2S-4x12 Owner’s Installation Wire kit display unit tapped screw tapped screw instructions manual Standard type Receiver & display unit Wire kit Receiver &...
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Wired Remote Controller Accessories Wired M4x16 tapped Indoor unit power Cable-tie Cable clamp remote controller screw drawing cable Communication Owner’s Installation Wire joint cable of the wired instructions manual remote controller Centralized Controller Accessories Centralized M4x16 tapped Owner’s Installation Cable-tie Cable clamp controller screw...
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Optional parts list (Continued) Transmitter Accessories Transmitter Transmitter Installation Transmitter power cable communication cable manual If you would like to install the centralized controller, you must install the transmitter in the outdoor unit. 7-day Scheduler Accessories 7-day M4x16 tapped Owner’s Installation Cable-tie Cable clamp...