Page 2 - Contents; Safety Information
2 English Contents Safety Information 3 Safety Information 3 Installation Procedure 5 Preparations for Outdoor Unit 5 Choosing the installation location 10 Preparing materials and tools 12 Outdoor unit installation 12 Refrigerant pipe installation 16 Electrical wiring work 38 Air tightness test and ...
Page 3 - mation; General information; WARNING
3 English Safety Infor mation Please follow the following safety information for safety of the installer and the user.• DVM S2 air conditioner uses R-410A refrigerant. – When using R-410A, moisture or foreign substances may affect the performance and reliability of the product. Safety precautions mu...
Page 4 - CAUTION
4 Safety Information English Safety Infor mation – When replacing/repairing the PCB, cut-off the power and wait until the DC voltage is discharged before replacing/ repairing them. (Wait for more than 15 minutes to allow it to discharge naturally.) • If the refrigerant gas leaks during the installat...
Page 5 - Instal; Preparations for Outdoor Unit; Installation Procedure; Outdoor unit classification; Moving the outdoor unit; When moving with a crane; Outdoor unit combination
5 English Instal lation Pr oc edure Preparations for Outdoor Unit Installation Procedure Outdoor unit classification Classification DVM S2 Small type DVM S2 Large type Appearance CAUTION Packaging material disposition• Safely store or dispose the packaging materials. – Sharp metals such as nails or ...
Page 6 - Premium energy efficiency type (Heat Pump)
6 Preparations for Outdoor Unit English Instal lation Pr oc edure Premium energy efficiency type (Heat Pump) Model name for combination Number of individual outdoor units Total capacity of the connected indoor units Maximum number of connectable indoor units Combined outdoor units AM***AXVGGH Minimu...
Page 9 - Premium energy efficiency type (Heat Recovery)
9 English Instal lation Pr oc edure Premium energy efficiency type (Heat Recovery) Model name for combination Number of individual outdoor units Total capacity of the connected indoor units Maximum number of connectable indoor units Combined outdoor units AM***AXVGGR Minimum (kW) Maximum (kW) 080 10...
Page 10 - Choosing the installation location; Outdoor unit location requirements; Installation Guide at the seashore
10 English Instal lation Pr oc edure Choosing the installation location Outdoor unit location requirements Decide the installation location, with the consideration of the following conditions, under user’s approval.• Place where hot discharge air or noise from the outdoor unit may not disturb the ne...
Page 11 - Outdoor unit space requirements; Single installation
11 English Instal lation Pr oc edure • When you install the outdoor unit in high places such as a roof, install fence or guardrail around it. When there is no fence or guardrail, service person could fall. • Do not install the product in places where corrosive gases such as sulfur oxides, ammonia, a...
Page 12 - Optional accessories; Outdoor unit installation
12 Outdoor unit installation English Instal lation Pr oc edure • You must keep the installation manual until the installation is finished. • Hand over the installation manual to the customer after finishing the installation. Installation manual (1) Optional accessories • Following optional accessori...
Page 13 - Base ground construction
13 English Instal lation Pr oc edure Base ground construction (Unit : mm) <When installing on the ground> Draining pit Over 200 <When installing on the roof> Bottom surface of the base ground must be horizontally leveled Over 200 Ov er 200 Outdoor unit installation (Unit : mm) Base groun...
Page 14 - Installing the outdoor unit in various; Installing the outdoor unit around the obstacles
14 Outdoor unit installation English Instal lation Pr oc edure CAUTION • Cautions regarding on connecting the anchor bolt – Tighten the rubber washer to prevent the bolt connection part of the outdoor unit from corroding. Rubber washer – Anchor specification Size Diameter of drill bit (a) Anchor len...
Page 15 - Installing the outdoor unit in cold region; Installing the outdoor unit in windy region
15 English Instal lation Pr oc edure WARNING • Should adopt bar type louver. Don’t use a type of rain resistance louver. [Bar type louver] [Rain resistance louver] • Louver specifications. – Angle criteria : less than 20˚ – Opening ratio criteria : greater than 80% Installing the outdoor unit in col...
Page 16 - Refrigerant pipe installation; Refrigerant pipe work
16 English Instal lation Pr oc edure Refrigerant pipe installation WARNING • When installing, make sure there is no leakage. When collecting the refrigerant, stop the compressor first before removing the connection pipe. If the refrigerant pipe is not properly connected and the compressor works with...
Page 21 - Additional refrigerant
21 English Instal lation Pr oc edure Additional refrigerant H/P H/R Ø12.70 (5 m) Ø12.70 (5 m) Ø12.70 (5 m) Ø6.35 (5 m) Ø6.35 (10 m) Ø6.35 (15 m) Ø9.52 (10 m) Ø9.52 (10 m) Ø9.52 (10 m) Ø9.52 (10 m) Ø6.35 (5 m) Ø9.52 (10 m) 46.4 kW 4.5 kW 5.6 kW 5.6 kW 7.1 kW 7.1 kW 7.1 kW 7.1 kW 3.6 kW Ø9.52 (1m) Ø12...
Page 24 - Temper grade and minimum thickness of; Keeping refrigerant pipe; Nitrogen flushing welding
24 Refrigerant pipe installation English Instal lation Pr oc edure Temper grade and minimum thickness of the refrigerant pipe Outer diameter (mm) Minimum thickness (mm) Temper grade Ø 6.35 0.70 Annealed Ø 9.52 0.70 Ø 12.70 0.80 Ø 15.88 1.00 Ø 19.05 0.90 Drawn Ø 22.22 0.90 Ø 25.40 1.00 Ø 28.58 1.10 Ø...
Page 25 - Cutting or flaring the pipes; Connecting the flared pipes
25 English Instal lation Pr oc edure Cutting or flaring the pipes 1 Make sure that you prepared the required tools. – Pipe cutter, Deburring tool, flaring tool and pipe holder, etc. 2 If you want to shorten the pipe, cut it with a pipe cutter ensuring that the cut edge remains at 90° with the side o...
Page 26 - Pipe installation for an outdoor unit
26 Refrigerant pipe installation English Instal lation Pr oc edure 2 Connecting refrigerant pipe for outdoor unit Classification Front side connection Right/left (and bottom) side connection Working process • First, remove the piping cover from the outdoor unit.• Separate the knock-out hole that you...
Page 28 - Examples of refrigerant pipe installation
28 Refrigerant pipe installation English Instal lation Pr oc edure Examples of refrigerant pipe installation H/P 1 Using Y-joint 2 Using distribution header H/R Using Y-joint MCU MCU MCU MCU MCU Note 1) MCU Note 1) Direct-connected indoor unit without MCU (for HR only) – This indoor unit can only be...
Page 33 - Installing the branch joints; Horizontal installation; Installing the distribution header
33 English Instal lation Pr oc edure Installing the branch joints Branch joints must be installed ‘horizontally’ or ‘vertically’. Horizontal installation Vertical installation NOTE • For A~J type branch joints : Connect the branch joint to the connection pipe with the provided reducer. • For K~Z typ...
Page 34 - Installing the branch joint between; Installation of outdoor joints
34 Refrigerant pipe installation English Instal lation Pr oc edure CAUTION • Connect the indoor units in order, while respecting the direction of the arrow shown in the illustration. • When indoor units are connected to same distribution head, indoor unit must be connected in order of their capacity...
Page 35 - Installing the MCU; MCU specification; Installing the indoor units
35 English Instal lation Pr oc edure Installing the MCU MCU specification Model MCU-S12NEK1N MCU-S8NEK1N MCU-S6NEK2N Exterior of MCU Number of connectable indoor units at one port Up to 8 units Up to 8 units Up to 8 units Maximum number of indoor units (Total) 64 64 32 The maximum capacity of the co...
Page 37 - How to connect the pipes
37 English Instal lation Pr oc edure How to connect the pipes Pipe connection from outdoor unit ← Default installing direction. Pipe connection to indoor unit Gas pipe (welding) Liquid pipe (welding) Protect with wet towel when welding 70 mm Low pressure gas pipe connection (welding) High pressure g...
Page 38 - Specification of the circuit breaker and power cable; Premium Energy Efficiency Type (Heat Pump); Electrical wiring work
38 English Instal lation Pr oc edure Specification of the circuit breaker and power cable Premium Energy Efficiency Type (Heat Pump) Standard Type (Heat Pump) Model MCA MFA Model MCA MFA AM080AXVGGH 18.0 25 AM080AXVAGH 18.0 25 AM100AXVGGH 21.2 32 AM100AXVAGH 23.0 32 AM120AXVGGH 25.0 32 AM120AXVAGH 2...
Page 39 - Premium Energy Efficiency Type (Heat Recovery)
39 English Instal lation Pr oc edure Essential Type (Heat Pump) Premium Energy Efficiency Type (Heat Recovery) Model MCA MFA Model MCA MFA AM100AXVDGH 23.0 32 AM080AXVGGR 18.0 25 AM120AXVDGH 25.0 32 AM100AXVGGR 21.2 32 AM140AXVDGH 29.0 32 AM120AXVGGR 25.0 32 AM160AXVDGH 32.0 40 AM140AXVGGR 27.0 32 A...
Page 40 - Power and communication cable
40 Electrical wiring work English Instal lation Pr oc edure • When installing outdoor units in module, select the power supply cable according to the sum of outdoor unit capacity. (Refer to the table for each model) • Power Supply cords of parts of appliances for outdoor use shall not be lighter tha...
Page 41 - Specification of the protection tube
41 English Instal lation Pr oc edure Protection tube Main unit Sub unit Sub unit Power cable Power cable Power cable Communication cable between outdoor units Communication cable between outdoor units ELCB MCCB+ ELB or ELCB MCCB+ ELB or ELCB MCCB+ ELB or Ground cable Ground cable Ground cable Commun...
Page 42 - Power wiring diagram
42 Electrical wiring work English Instal lation Pr oc edure Power wiring diagram Supplying 3 phase 4 wires (380-415 V~) <When the module combination is in the tables of "Outdoor unit combination"> 3 phase 4 wires (380-415 V~) MCCB+ ELB MCCB+ ELB ELCB ELCB Main unit Main unit Sub unit S...
Page 43 - Connecting the power terminal
43 English Instal lation Pr oc edure Connecting the power terminal • Connect the cables to the terminal board with solderless ring terminals. • Properly connect the cables by using certified and rated cables and make sure to fix them properly so that external force is not applied to the terminal. • ...
Page 44 - Examples of how to use the cable striper; Fixing the power cable
44 Electrical wiring work English Instal lation Pr oc edure 1 Closing the cover Screw Tightening torque for terminal (N∙m) M3.5 0.78~1.18 Communication cable M4 1.2~1.8 Single phase (220-240 V) power cable M8 5.5~7.3 3 phase (380-415 V) power cable CAUTION • When removing the outer sheath of the pow...
Page 45 - Connect the ring terminal of 3 phase cable; Fixing the ground cable; Withdrawing the power cable
45 English Instal lation Pr oc edure Connect the ring terminal of 3 phase cable 1 Cut the power cable to an appropriate length and connect it with the solderless terminal. 2 After connecting the power cable to the terminal as seen in the illustration, fix it with cable tie. 3 Fix the housing, which ...
Page 46 - Example; Grounding work; Grounding the power cable; Performing the grounding work
46 Electrical wiring work English Instal lation Pr oc edure Connecting the MCU (MCU-S6NEK2N, MCU-S4NEK3N, MCU-S2NEK2N, MCU-S1NEK1N, MCU- S8NEK1N, MCU-S12NEK1N) Example Outdoor unit Indoor unit Indoor unit ELB (A) (B) ELB MCCB MCCB 220-240 V~ • (A) Power must be supplied to the MCU separately from th...
Page 47 - Air tightness test; Air tightness test and vacuum drying
47 English Instal lation Pr oc edure Air tightness test • Use tools for R-410A to prevent the inflow of foreign substances and resist against the internal pressure.• Do not remove the core of filling port.• Use dry nitrogen gas for air tightness test as shown in the illustration. H/P H/R Manifold ga...
Page 48 - Vacuum drying pipes and indoor units
48 Air tightness test and vacuum drying English Instal lation Pr oc edure Vacuum drying pipes and indoor units • Use tools for R-410A to prevent the inflow of foreign substances and resist against the internal pressure.• Use vacuum pump that allows vacuuming under -100.7kPa (5 Torr).• Use the vacuum...
Page 49 - Insulating the refrigerant pipes and; Insulate the refrigerant pipe; Pipe insulation
49 English Instal lation Pr oc edure Insulating the refrigerant pipes and branch joints • Check for gas leakage before completing (the hose and pipe insulation) and if there is no sign of leakage, make sure to insulate the pipes and hoses. • Use EPDM material insulator that meets the following condi...
Page 50 - Insulate the distribution header
50 Pipe insulation English Instal lation Pr oc edure Insulating pipes • The insulation of the gas and liquid pipes can be in contact with each other but they should not press excessively against each other. • When the gas side and liquid side pipes are contacting each other, increase the thickness o...
Page 51 - Insulating the pipe located inside of the; Refrigerant charging; Important information: regulation
51 English Instal lation Pr oc edure Insulating the pipe located inside of the outdoor unit • With a pipe insulator, insulate the pipe up to whole service valve located inside of the outdoor unit. • Seal the gap between the outdoor unit pipe and the insulator. Rainwater and dewdrops may soak through...
Page 52 - Using service valve for gas
52 Refrigerant charging English Instal lation Pr oc edure CAUTION • The filled-out label must be adhered in the proximity of the product charging port.(ex. onto the inside of the stop valve cover.) Single installation • Open the manifold gauge valve connected to the liquid side service valve and add...
Page 53 - Setting outdoor unit option switches; Basic segment display
53 English Instal lation Pr oc edure Setting outdoor unit option switches • Setting outdoor install option Step Button Display Description Note Start Outdoor unit address Quantity of indoor units Main unit? No No Yes Yes Save Heat recovery? Quantity of MCUs Outdoor unit address Step1 Outdoor unit di...
Page 54 - Setting outdoor unit option switch and key function
54 Setting outdoor unit option switch and key function English Instal lation Pr oc edure Installing and setting the option with tact switch and explanation of the functions Setting the option1 Press and hold K2 to enter the option setting. (Only available when the operation is stopped) – If you ente...
Page 58 - Setting key operation and checking the view mode with tact switch
58 Setting outdoor unit option switch and key function English Instal lation Pr oc edure Setting key operation and checking the view mode with tact switch K1 control KEY operation Display on segment Press and hold 1 time Auto trial operation “K” “K” “BLANK” “BLANK” K1 (Number of press) KEY operation...
Page 61 - Setting the MCU address and the MCU; Setting the Pipe Addresses Manually; Setting by using the wired or wireless remote
61 English Instal lation Pr oc edure You can set the MCU address, the MCU ports to use, and the address for each MCU port connected to each indoor unit.It is for 2nd-generation MCU only. (MCU-S*NEK2N,MCU- S4NEK3N,MCU-S1NEK1N,MCU-S8NEK1N,MCU-S12NEK1N) Setting the MCU address and the MCU ports to use ...
Page 62 - Setting the Pipe Addresses Automatically; Check items before running the Auto pipe; To run the Auto pipe pairing operation, take the
62 English Instal lation Pr oc edure 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.If an MCU port is set incorrectly or a pipe betwe...
Page 63 - Performing final checks and trial operation
63 English Instal lation Pr oc edure 1 Before supplying the power, use DC 500 V insulation resistance tester to measure the power (3 phase: R, S, T/ 1 phase: L, N) terminal and the outdoor unit grounding. – Measurement should be over 30MΩ. 2 Before supplying the power, use a voltmeter and phase test...
Page 64 - Checklist before auto trial operation; Auto trial operation
64 Performing final checks and trial operation English Instal lation Pr oc edure CAUTION Precautions before test operation• When the outdoor temperature is low, turn on the main power 6 hours before beginning the operation. – If you start the operation immediately after turning on the main power, it...
Page 65 - Inspection and trial operation; Measure to take when E503 error occurs; Appendix
65 English Appendix Inspection and trial operation Measure to take when E503 error occurs Perform Trial Operation (cooling/heating)- See the instructions on Key operation modes. Perform Auto Trial Operation again Yes Yes Yes Yes Yes Take corrective measures. No. Is the ball valve on the outdoor unit...
Page 66 - Measure to take when E505 or E506 error occurs
66 Inspection and trial operation English Appendix Measure to take when E505 or E506 error occurs Keep all the outdoor units in vacuum mode for 5 min.- See the instructions on Key operation modes. Perform Auto Trial Operation again Yes Yes Yes Open the valve. No. Is the ball valve (service valve) on...
Page 67 - Automatic refrigerant amount detection function
67 English Appendix This function checks amount of refrigerant in the system through refrigerant amount detection operation Start Press the K2 tact switch 5 times Normal / Excessive / Shortage Check the result with the function of the Refrigerant Check Judgment not available Connect S-Net Pro Checki...
Page 68 - Product Information
68 English Appendix Model Net Weight(kg) Net Size ( W×H×D, mm) AM080AXVGGH 194 930x1695x765 AM100AXVGGH 205 930x1695x765 AM120AXVGGH 205 930x1695x765 AM140AXVGGH 233 1295x1695x765 AM160AXVGGH 262 1295x1695x765 AM180AXVGGH 268 1295x1695x765 AM200AXVGGH 268 1295x1695x765 AM220AXVGGH 301 1295x1695x765 ...