Related Manuals for Samsung AM FXVAF Series
Summary of Contents for Samsung AM FXVAF Series
- Page 1 Air conditioner Installation manual • Thank you for purchasing this Samsung air conditioner. • Before operating this unit, please read this installation manual carefully and retain it for future reference.
- Page 2 Contents ..................
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Page 3: Safety Precautions
Safety precautions WARNING: Please follow the following safety information for safety of the installer and the user. • • material and thickness according to the regulations. • product malfunction.) After completing the installation and trial operation, explain to the user how to use and maintain the •... - Page 4 Safety precautions If the place cannot support its weight, the outdoor unit may fall down and it may cause injury. the work. Before welding, remove the refrigerant from inside the pipe or the product. - If you perform welding while refrigerant is in the pipe, it may increase the pressure of the refrigerant and Do not connect the ground wire to a gas pipe, water pipe, lightning rod or telephone grounding.
- Page 5 There is risk of electric shock. Even when the power is off, it is dangerous when you come in contact with inverter PCB, fan PCB since high pressure DC voltage is charged to those parts. product. equipped. CAUTION SIGNS Do not leave the refrigerant container under the hot sunlight. (There is risk of explosion.) You must use the appropriate pipes according to the standard since the pressure of the refrigerant is very high.
- Page 6 Safety precautions The place where there is mineral oil or arsenic acid. The place where corrosive gas such as sulfurous acid gas generates from the vent pipe or air outlet. - The copper pipe or connection pipe may corrode and refrigerant may leak. The place where there is a machine that generates electromagnetic waves.
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Page 7: Preparing For Installation
If the total capacity of the connected indoor units exceeds the indicated maximum capacity, cooling and heating capacity of the indoor unit may decrease. utdoor unit capacity) Please contact your local Samsung representative or refer to the Technical Data Book for further details if • capacity requirements. - Page 8 Preparing for installation Combined outdoor unit Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) connected indoor Maximum(btu/h) units(cooling) Combined outdoor unit Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) connected indoor Maximum(btu/h) units(cooling) Combined outdoor unit Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) connected indoor Maximum(btu/h)
- Page 9 Combined outdoor unit Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) connected indoor Maximum(btu/h) units(cooling) Combined outdoor unit Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) connected indoor Maximum(btu/h) units(cooling) Combined outdoor unit (Large B type) Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) the connected indoor Maximum(btu/h)
- Page 10 Preparing for installation Combined outdoor unit Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) connected indoor Maximum(btu/h) units(cooling) Combined outdoor unit Cooling(btu/h) Nominal Capacity Heating(btu/h) Cooling(btu/h) Heating(btu/h) Minimum(btu/h) connected indoor Maximum(btu/h) units(cooling) • CAUTION...
- Page 11 Moving the outdoor unit Select the moving path in advance. Be sure that moving path can support weight of the outdoor unit. Surface of the heat exchanger is sharp. Be careful not to get injured while moving the product. • You must use certain part of the product when moving the product. CAUTION When moving with a crane To protect damage or scratches, insert a piece of cloth...
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Page 12: Selecting Installation Location
Selecting installation location residential areas, keep the operation hours in mind.) Place where it is not exposed to strong wind. purchased separately) the outdoor unit during heating operation. the outdoor unit. Installation Guide at the seashore Make sure to install the product in a place that provides smooth water drainage. If the product is damaged during the installation or maintenance, make sure to repair it. - Page 13 Outdoor unit Outdoor unit Outdoor unit Protection wall Outdoor unit Outdoor unit • System air conditioner may cause static noise when listening to AM stations. Therefore, select CAUTION distance from a radio, computer and stereo equipment. - Make sure that there is no equipment that generates electromagnetic waves. If not conditioner malfunction.
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Page 14: Space Requirement For Installation
Space requirement for installation If the installation space is narrow, installer or other worker may get injured during work and may also secured, product may malfunction. performance may decrease depending on the installation environment. Single installation Unit: mm (inch) Height of the wall is Front side unlimited Front... - Page 15 Module installation Unit: mm (inch) Height of the wall is Over Over Front side unlimited Front side Front side Front side • • • Height of the wall on the side is not limited. • Unit: mm (inch)
- Page 16 Accessories Accessories Models with installaton socket LIQUID LIQUID Pipe in Production Installaton Pipe Pipe in Production Installaton Pipe Pipe in Production Installaton Pipe Pipe in Production Installaton Pipe Pipe in Production Installation Pipe Pipe in Production Installation Pipe Series) LIQUID LIQUID Pipe in Production Installaton Pipe...
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Page 17: Optional Accessories
Optional accessories Model Name - Outdoor unit - Outdoor unit If you use an indoor unit with no internal EEV(Electric Expansion Valve), you will need an EEV kit. -
Page 18: Base Construction And Installation Of The Outdoor Unit
Base construction and installation of the outdoor unit • WARNING drain pipe to the drainage. damages or cracks. coating. Base ground construction Bottom surface of the Draining pit... -
Page 19: Outdoor Unit Installation
Outdoor unit installation Base ground Over Outdoor unit base mount and anchor bolt position Unit: mm (inch) Unit: mm (inch) Small type Large B type... - Page 20 Base construction and installation of the outdoor unit Examples of draining work Construct a drainage around the outdoor unit to prevent the defrost water (from the outdoor unit) from Unit: mm (inch) Direction of the Direction of the drainage Unit: mm (inch) Small type Large B type...
- Page 21 Cautions regarding on connecting the anchor bolt CAUTION corroding. Diameter of Anchor Sleeve length Insert Fastening depth torque Cautions regarding on connecting the pipe If you install the outdoor unit on the rooftop, check the strength and make sure to waterproof the rooftop.
- Page 22 Base construction and installation of the outdoor unit CAUTION If you remove the fan guard to install the discharge duct, make sure to install a safety net on the injury.
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Page 23: Installing The Wind/Snow Prevention Duct
Installing the wind/snow prevention duct Installing the outdoor unit around the obstacles Discharged air Discharged Grille/louver Suction air Ex.) Balcony Ex.) Mechanical room Installing the outdoor unit in cold region frost may accumulate on the heat exchanger and heating operation may not work normally. •... - Page 24 Installing the wind/snow prevention duct Installing the outdoor unit in windy region normal operation of the outdoor unit. (Refer to the illustration of the snow prevention duct, for installing the wind protection duct.) Install the wind prevention duct with the consideration of major wind direction. If the direction of the •...
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Page 25: Refrigerant Pipe Installation
Refrigerant pipe installation • WARNING and then remove the connected pipes. - Do not operate the compressor while a valve is open due to refrigerant leakage from a pipe the compressor and too a high pressure to develop inside the refrigerant circuit, leading to an explosion or product malfunction. - Page 26 Refrigerant pipe installation Selecting refrigerant pipe Increase the main Liquid pipe Gas pipe inch inch...
- Page 27 Size of the pipe connected to the outdoor unit (A) capacity Liquid Liquid inch inch inch inch...
- Page 28 Refrigerant pipe installation Size of the pipe between branch joints (B) Branch pipe length within Branch pipe length between Indoor unit capacity Liquid Liquid inch inch inch inch Note on measuring distance between branch joints (B)
- Page 29 Size of the pipe between the branch joint and the indoor unit Make a selection according to outdoor unit capacity. Indoor unit capacity Liquid inch inch Branch joint Model name Y-joint for outdoor unit (C) Make a selection according to outdoor unit capacity. Model name Y-joint (D)
- Page 30 Refrigerant pipe installation Branch joint (E) Y-joint Model name Y-joint (E) Model name...
- Page 31 Liquid High pressure Gas inch inch inch Size of the pipe connected to the outdoor unit (A) capacity High pressure High pressure Liquid Liquid inch inch inch inch inch inch...
- Page 32 Refrigerant pipe installation Size of the pipe between branch joints (B) Indoor unit capacity Liquid High pressure Gas inch inch inch Size of the pipe between the branch joint and the indoor unit Make a selection according to outdoor unit capacity. Indoor unit capacity Liquid inch...
- Page 33 Branch joint Model name Liquid/Low pressure Y-joint (C) High pressure Y-joint (C) Make a selection according to outdoor unit capacity. Model name Liquid/Low pressure Y-joint (D) High pressure Y-joint (D) Branch joint (E) • Y-joint Model name Y-joint (E) Y-joint (E) (Only H/R)
- Page 34 Refrigerant pipe installation Basic type - additional refrigerant Branch joint Basic amount of refrigerant within the outdoor unit [mm (inch)] Additional amount...
- Page 35 Amount of additional refrigerant for each indoor unit ( ) Capacity (kBtu) Model Floor Standing Unit Slim duct MSP duct HSP duct Ceiling Wall mounted Duct S Duct S installation manual. capacity increase.
- Page 36 Refrigerant pipe installation Method to calculate total amount of additional refrigerant - Amount of additional refrigerant depending on the pipe length ( ) - Amount of additional refrigerant for each indoor unit ( - Total amount of additional refrigerant = refrigerant ( Example of refrigerant calculation for HP models additional...
- Page 37 additional indoor unit × × ) Indoor unit ( ) - Total amount of refrigerant ( Temper grade and minimum thickness of the refrigerant pipe Minimum thickness inch inch Annealed Drawn • CAUTION pressure resistance and cause personal injury.
- Page 38 Refrigerant pipe installation Keeping refrigerant pipe To prevent foreign materials or water from entering the pipe, storing method and sealing method (especially during installation)is very important. Apply correct sealing method depending on the environment. Exposure place Exposure time Sealing type Longer than one month Pipe pinch Outdoor...
- Page 39 Make sure that you prepared the required tools. side of the pipe. Rough Burr [Flaring tools] Yoke Pipe Clutch type Flare nut Pipe Pipe diameter [D, mm (inch)] Clutch type Wing nut type Correct Inclined Damaged Surface Cracked Uneven Thickness •...
- Page 40 Refrigerant pipe installation Pipe Monkey wrench Torque wrench Flare connection Flare nut section Flare dimension (L) Flare shape [mm(inch)] inch N·m inch • • CAUTION • • •...
- Page 41 Pipe installation for an outdoor unit Direction of the pipe side. Take necessary method to install the pipes according to the condition of the installation site. Front side connection Left side Right side connection connection CAUTION Knock-out hole • Make sure to prevent any damages on the exterior of the outdoor unit. •...
- Page 42 Refrigerant pipe installation Connecting refrigerant pipe for outdoor unit Front side connection • First, remove the piping cover from the • Separate the knock-out hole at the outdoor unit. pipe. • Separate the knock-out hole that you are going to use. If you separate the knock- •...
- Page 43 CAUTION • sensor when welding. • Also, water dripping from the wet cloth may interrupt the welding. Make sure the water does not drip from the wet cloth. • Make sure that connected pipes does not interrupt each other or make contact with the product. •...
- Page 44 Refrigerant pipe installation Check the changes in comparison with the DVM II and III. Caution Correct installation Incorrect installation Refrigerant pipes at the same or lower level than the ones connected to the outdoor unit. Refrigerant pipes must Straight section side of the product.
- Page 45 Examples of refrigerant pipe installation Using Y-joint Using Y-joint (for HR only) - Connect indoor unit to liquid and low pressure gas pipe. - Change the installation option for direct-connected indoor unit without MCU. (refer to the indoor unit installation manual)
- Page 46 Refrigerant pipe installation Allowable length of the refrigerant pipe and the installation examples Single Installation Module installation Outdoor unit Outdoor unit Branch joint Branch joint Installing only with Indoor unit Indoor unit Outdoor unit Branch joint Outdoor unit Distribution header Distribution Branch joint Installing with...
- Page 47 EEV kit Model name or less Actual pipe Apply to products without Indoor unit length or less Please refer to the EEV Kit manual. Condition Example Farthest Indoor unit Total length of extended pipe indoor unit...
- Page 48 Refrigerant pipe installation Installing with MCU only Cooling Only Indoor Unit (Connecting Only Low Pressure Gas Pipe / Liquid Pipe Installing with MCU and Y-joint Example Installing only with Equivalent length Actual pipe • length • (Equivalent Installing with MCU length) and Y-joint Outdoor unit...
- Page 49 Example Outdoor unit Maximum or less Indoor unit Pipe length height or less difference Indoor unit (in one MCU) less. Installing only with Maximum or less length Pipe length after Farthest Installing with MCU Indoor unit and Y-joint joint Distribution kit Model Applied to products without EEV Actual pipe length...
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Page 50: Installing The Branch Joints
Refrigerant pipe installation Installing the branch joints Horizontal installation Vertical installation • reducer. NOTE • • • CAUTION • joint. Pipe connection Socket Socket Pipe Connect to indoor unit Minimum straight Pipe (Main pipe) - Page 51 Installing the distribution header Socket Provided item Pipe * Socket Pipe* Pipe* Pipe* To indoor unit To indoor unit To outdoor unit To outdoor unit Socket Socket Pipe : Separately purchased item ports with caps. Provided Connect in order Connect item in order •...
- Page 52 Refrigerant pipe installation Socket Pipe (Separately purchased item) < Liquid side > < Gas side > Installing the branch joint between outdoor units Installation of outdoor joints High pressure Do not install the outdoor gas pipe joint in this direction. Gas pipe Liquid pipe High pressure gas pipe only applies to the H/R product.
- Page 53 Use the attached reducer according to the selected pipe To other outdoor unit Pipe To other outdoor joint or outdoor unit Reducer Reducer Pipe To other outdoor joint or Y-joint of the main pipe <Liquid side> Use the attached reducer according to the selected pipe To other outdoor unit Pipe To other outdoor joint or outdoor unit...
- Page 54 Refrigerant pipe installation Installing the MCU Model Exterior of MCU units at one port The maximum capacity of the units at one port The maximum capacity of the units Internal EEV Not included • directly to the MCU. CAUTION •...
- Page 55 Installing the indoor units Model Example installing (Each port connection) MCU series connection Example installing (MCU series connection) This unit is only one port under This unit is connect MCU to MCU in series. Installing indoor units Set Dip Switch option for using Y-connector S/W Option S/W Option S/W Option...
- Page 56 Refrigerant pipe installation How to connect the pipes Protect with wet towel when welding Low pressure gas pipe connection (welding) High pressure gas pipe connection (welding) Liquid pipe connection (welding) Pipe connection to indoor unit Liquid pipe (welding) Gas pipe (welding) e the pattern sheet for installation that is provided with the product.
- Page 57 Model Exterior of MCU Refer the detail information of units installation Maximum capacity indoor units Installing the indoor unis Model Example installing under: MBH) or over, must use Connect the liquid, gas Connect the liquid, gas pipe of indoor unit to a the appropriate MCU Installation pipe of indoor unit to a...
- Page 58 Refrigerant pipe installation How to connect the pipes Protect with wet towel when welding Low pressure gas pipe connection (welding) High pressure gas pipe connection (welding) Liquid pipe connection (Flare) Pipe connection to indoor unit Liquid pipe (Flare) Gas pipe (Flare)
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Page 59: Electrical Wiring Work
Electrical wiring work Electric Characteristics Units Power Supply Power Supply Model Volts Units Power Supply Model Volts... - Page 60 Electrical wiring work Units Power Supply Power Supply Model Volts Units Power Supply Model Volts...
- Page 61 Units Power Supply Power Supply Model Volts Units Power Supply Model Volts...
- Page 62 Electrical wiring work Units Power Supply Power Supply Model Volts Units Power Supply Model Volts Units Power Supply Power Supply Model Volts...
- Page 63 • CAUTION • • • different from the ones stated, please consult an electrical installation expert and re-select the voltage drop. • (outer cover). • Exposed wire Insulator (inner core cover) Sheath (outer cover) front part. Main unit ELCB ELCB ELCB Protection Communication...
- Page 64 Electrical wiring work Name concrete structure exposed to outside so there are risk of damage to the exposed to outside so there are risk of damage to the and Soft PVC compound • CAUTION a hammer. • After perforating the knock-out hole, apply rust resisting paint around the hole.
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Page 65: Power Wiring Diagram
Power wiring diagram ELCB ELCB ELCB Main unit Main unit Communication Communication ELCB Communication Communication Grounding Grounding Grounding remote remote remote controller controller controller connected properly. (*Malfunction: Turning on/off, occurrence of error, consecutive reset) has no polarity. -
Page 66: Selecting Solderless Ring Terminal
Electrical wiring work Selecting solderless ring terminal Silver solder Nominal dimensions Nominal dimensions Standard dimension [mm (inch)] [mm (inch)] Standard dimension [mm (inch)] [mm (inch)] Standard dimension [mm (inch)] [mm (inch)] Standard dimension [mm (inch)] [mm (inch)]... -
Page 67: Connecting The Power Terminal
Connecting the power terminal external force is not applied to the terminal. Use a driver and wrench that can apply the rated torque when tightening the screws on the terminal Solderless ring terminal separate the solderless terminal up and down to prevent it from getting loose. - Page 68 Electrical wiring work Examples of how to use the cable striper <Cable striper> of the arrow, two or three times. toward the direction of the arrow.
- Page 69 Fixing the power cable ELCB • model • CAUTION • • Connect the ring terminal of 3 phase cable solderless terminal.
- Page 70 Electrical wiring work Fixing the ground cable Grounding Withdrawing the power cable knock-out hole.
- Page 71 Installing the Solution device indoor unit solution device...
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Page 72: Connecting The Mcu
Electrical wiring work Connecting the MCU Example 1 Indoor unit Indoor unit Outdoor MCCB unit Example 2 Indoor unit Indoor unit Indoor unit Outdoor MCCB unit • CAUTION Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit... - Page 73 Connecting the MCU (MCU-S6NEK2N, MCU-S4NEK3N, MCU-S2NEK2N, MCU-S1NEK1N) Example MCCB Indoor unit Indoor unit Outdoor MCCB unit • CAUTION Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit Indoor unit •...
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Page 74: Grounding Work
Electrical wiring work Grounding work Grounding the power cable The standard of grounding may vary according to the rated voltage and installation place of the air conditioner. Power condition Installation place High humidity Must perform the grounding work (Including the case where earth Low humidity •... -
Page 75: Air Tightness Test And Vacuum Drying
Air tightness test and vacuum drying Air tightness test Use Nitrogen gas for air tightness test as shown in the illustration. Manifold gage Manifold gage High High Low pressure pressure pressure pressure side side side side Filling port Service Service valve Filling port valve Liquid pipe... - Page 76 Air tightness test and vacuum drying Vacuum drying pipes and indoor units pump is stopped. Completely close the liquid gas side service valve of the outdoor unit. Connect the manifold gauge to the liquid side pipe and gas side pipe (when installing gauge to liquid side pipe and the gas side pipe.
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Page 77: Pipe Insulation
Pipe insulation Insulating the refrigerant pipes and branch joints make sure to insulate the pipes and hoses. Use EPDM material insulator that meets the following conditions. Unit Standard Density Thermal conduction rate Moisture transpiration factor Moisture transpiration grade Formaldehyde dispersion mg/L Oxygen rate Selecting the refrigerant pipe insulator... - Page 78 Pipe insulation Insulate the refrigerant pipe pipes. If you insulate the pipes, condensed water will not fall from the pipes. Insulator Clamp Insulator Indoor unit Insulator Gas side pipe Liquid side pipe overlapped Fix securely without any gap. Insulating pipes Insulating pipes connected behind the EEV kit •...
- Page 79 Insulate the distribution header Insulation part with an adhesive insulation tape to prevent dew formation. Adhesive insulation Insulate after welding a tape stopper Insulate the Insulate the Adhesive insulation tape refrigerant pipe header Insulating the branch joint inch). Pipe insulator Insulation tape (Separately purchased item) Provided (Separately...
- Page 80 Pipe insulation Insulating the pipe located inside of the outdoor unit Separate the cover of the pipe and close it after insulation work. Only remove a knock-out hole cover...
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Page 81: Charging Additional Refrigerant
Charging additional refrigerant of the refrigerant using a scale. Single installation Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant. If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side the outdoor PCB. -
Page 82: Module Installation
Charging additional refrigerant Module installation Open the manifold gauge valve connected to the liquid side service valve and add the liquid refrigerant. If you cannot add the whole quantity of the refrigerant while the outdoor unit is stopped, open the gas side the outdoor PCB. -
Page 83: Basic Segment Display
Basic segment display Step Display content Display At initial power input Checking segment display communicated units units unit (Addressing) communication address After communication setting Transmit/Reception address Reception address (in (usual occasion) I/U : Indoor unit... -
Page 84: Setting Outdoor Unit Option Switch And Key Function
Setting outdoor unit option switch and key function Setting outdoor unit option switches : B TYPE Setting outdoor install option Step Button Display Description Note Start Outdoor unit address Outdoor unit Setting display required Outdoor unit address Press Unit address for module Main unit? units... - Page 85 Installing and setting the option with tact switch and explanation of the functions Setting the option Example) function for each option) Example) • instruction. CAUTION setting. option setting mode.
- Page 86 Setting outdoor unit option switch and key function Input unit Emergency operation for Individual the compressors are set as malfunction state compressor malfunction state. malfunction malfunction state Targeted evaporation Cooling capacity Main correction value is set, discharged air temperature of the indoor unit will decrease) Capacity correction for...
- Page 87 Input unit night-time in cooling mode (It operates automatically depending on the temperature.) However, if the external contact Silent mode Main used, entering the silent mode in cooling and heating mode. (A type PBA : this function is used in cooling mode.) than outdoor unit) High-head condition...
- Page 88 Setting outdoor unit option switch and key function Input unit Unused option Main Unused option Unused option Main Unused option command the air conditioner to cool/heat faster at initial start- Speed operation Main However, this function will not work when High-head condition setting or Long-piping Restrict excessive capacity Max.
- Page 89 Setting key operation and checking the view mode with tact switch Display on segment Auto trial operation Display on segment Refrigerant charging in Heating mode Trial operation in Heating mode Vacuuming (All outdoor units) End Key operation...
- Page 90 Setting outdoor unit option switch and key function Display on segment Refrigerant charging in Cooling mode Trial operation in Cooling mode Pump down all units in Cooling mode H/R: Checking the pipe connection H/P: Automatic setting of operation mode (Cooling/Heating) for trail operation Checking the amount of refrigerant may differ depending on the progress) Discharge mode of DC link voltage...
- Page 91 Display on segment press) Outdoor unit model High pressure (MPa) Low pressure (MPa) Discharge temperature Discharge temperature Suction temperature COND OUT temperature Temperature of liquid pipe Outdoor temperature EVI inlet temperature EVI outlet temperature EVI EEV step HR EEV step Fan step (SSR or BLDC)
- Page 92 Setting outdoor unit option switch and key function Display on segment press) Main indoor unit address Snow Sensor Voltage Model Display on segment Display on segment press) Displayed content Press and hold the setting Main version MAIN EEP version Automatically assigned address of AUTO Address the units...
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Page 93: Setting The Mcu And Pipe Addresses (For Hr Only)
Setting the MCU and Pipe Addresses (for HR Only) You can set the MCU address, the MCU ports to use, and the address for each MCU port connected to each indoor unit. Setting the MCU address and the MCU ports to use You can set the MCU address and the MCU ports on the MCU PBA. - Page 94 Setting the MCU and Pipe Addresses (for HR Only) the Pipe Addresses Manually or Setting the Pipe Addresses Automatically. (Auto pipe pairing operation) • Pipe Addresses Manually. CAUTION • install manual. Setting the Pipe Addresses Manually unit. Setting by using the wired or wireless remote control (For how to operate the remote control buttons, see the remote control user manual.) (You can also set the address of each indoor unit.) the indoor unit will...
- Page 95 Setting by using S-NET Pro 2 Setting the Pipe Addresses Automatically (Auto pipe pairing operation) You can use the Automatic pipe-address setting operation to automatically set the address of each MCU port that is connected to an indoor unit. indoor unit is indicated. Check items before running the Auto pipe pairing operation Ensure that the service valve of the outdoor unit is open.
- Page 96 Setting the MCU and Pipe Addresses (for HR Only) To run the Auto pipe pairing operation, take the following steps: (Display : Indoor temperature Main heating operation Main heating operation Main cooling operation Indoor temperature Main heating operation Main cooling operation Main cooling operation hours to protect the compressor.) Description...
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Page 97: Things To Check After Completing The Installation
Things to check after completing the installation Before supplying the power, use a voltmeter and phase tester to check the voltage and the phase. - R, S, T terminal: • Never measure the communication terminal since communication circuit may get damaged. •... -
Page 98: Inspection And Trial Operation
Inspection and trial operation • CAUTION operation. - If you start the operation immediately after turning on the main power, it may cause serious damage to the part within the product. • Do not touch the refrigerant pipe during or right after the operation. refrigerant cycle. -
Page 99: Auto Trial Operation
- In Auto trial operation, product will automatically select either cooling or heating mode and operate in selected mode. - In the temperature range marked with slashed pattern, system protection control may trigger during the auto trial operation.) Auto trial operation when auto trial mode is completed.) - Refer to service manual if you need inspection or when other errors occur. - Page 100 Inspection and trial operation Measure to take when E503 error occurs Take corrective measures. opened? Has the correct amount of additional Take corrective measures. indoor unit and liquid line? Perform Trial Operation (cooling/heating) - See the instructions on Key operation modes. Take corrective measures.
- Page 101 • • CAUTION • • frost, and then perform Auto Trial Operation again. • If the operation range is not within guaranteed range, error may occur even though the product is normal. • performed with the power supply on, exercise extra care to prevent electric shock.
- Page 102 Inspection and trial operation Measure to take when E505, E506 error occurs - See the instructions on Key operation modes. sensors on outdoor units greater Open the valve. each outdoor unit opened? Are the pressure sensor connectors Take corrective measures. properly connected to the PBA? Is the actual pressure* different from Replace the pressure sensor.
- Page 103 • CAUTION occur even though the product is normal. • • If pressure sensor check is required, outdoor units will terminate auto trial operation mode automatically. • •...
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Page 104: Automatic Refrigerant Amount Detection Function
Automatic refrigerant amount detection function This function detects amount of refrigerant in the system through refrigerant amount detection operation Start Input S-CHECKER signal times Satisfy the temperature condition Satisfy the temperature condition Check the amount of refrig er Check the amount of refrig er Connect S-Net Pro refrigerant: Normal / Excessive... - Page 105 • CAUTION • • Therefore, use the function of refrigerant amount check after operating the product in cool mode • Product may trigger system protection operation depending on the installation environment. In • Excessive amount of refrigerant • • • - Check if the function of refrigerant amount check is executed within the guaranteed...