Samsung AM050NXMDER/EU - Manuals

safety information _05 ENGLISH Do not install the outdoor unit at an unstable place or elevated surface where there is potential risk of falling. • If the outdoor unit falls, it may cause personal injury or loss or property. Any changes or modifications performed not following by the installation man...

06_ safety information safety information WARNING SEVERE WARNING SIGNS Never use a damaged power plug, power cable, or loosened power receptacle. • Potential risk of fire or electric shock. The electric work must be done by qualified service technician in accordance with the national wiring regulation...

08_ safety information safety information WARNING SEVERE WARNING SIGNS The air conditioner must be installed in accordance with national wiring regulations and safety regulations wherever applicable. Install the supplied cables firmly. Fix them securely so that external force is not exerted to the te...

safety information _09 ENGLISH Use a receptacle that has a ground terminal. The receptacle must be used exclusively for the air conditioner. • Improper electrical grounding may cause electric shock or fire. Be sure to ground the unit. Do not connect the ground wire to gas or water pipes, lighting rod...

10_ safety information safety information CAUTION CAUTION SIGNS Failure to comply with these instructions or to comply with the requirements set forth in the “Operating limits” table, included in the manual, and shall immediately invalidate the warranty. Ensure no water gets into the air conditioner...

safety information _11 ENGLISH Do not allow children to climb on the air conditioner. Use only rated accessories and install the air conditioner with rated equipments. • If you do not use the rated accessories, the air conditioner may drop from its place, water may leak or electric shock or fire may ...

safety information _13 ENGLISH • The place where thinner or gasoline is handled Gas may leak and it may cause fire. If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refriger...

14_ safety information safety information CAUTION CAUTION SIGNS Keep indoor temperatures stable and not extremely cold, especially where there are children, elderly or disabled people. Clean the dust filter every 2 weeks. Clean the filter more frequently if the air conditioner is operated in dusty are...

safety information _15 ENGLISH Make sure that children take precautions against access to the air conditioner and they do not play with the unit. When using a wireless remote control, the distance should not be more than 7 meters from the air conditioner. If the remote control is not used for a long...

16_ safety information safety information CAUTION CAUTION SIGNS The appliance is not intended for use by young children or infirm persons without supervision: Young children should be supervised to ensure that they do not play with the appliance. Clean the air conditioner after the inner fan stops op...

safety information _17 ENGLISH Make sure that there are no obstacles or covers that block the air conditioner. Allow sufficient space for air circulation. • Insufficient ventilation may result in poor performance. This appliance is not intended for use by persons (including children) with reduced phys...

safety information _19 ENGLISH Power supply cords of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cord. (Code designation IEC:60245 IEC 57 / CENELEC:H05RN-F or IEC:60245 IEC 66 / CENELEC: H07RN-F) The unbalanced power must be maintained within 10 % o...

contents _23 ENGLISH contents VIEWING YOUR AIR CONDITIONER 24 24 Slim 1 way cassette25 2 way cassette25 4 way cassette USING YOUR AIR CONDITIONER 26 26 Tips on using your air conditioner CLEANING AND MAINTAINING THE AIR CONDITIONER 28 28 Cleaning the exterior28 Cleaning the grille 28 Slim 1 way cass...

24_ viewing your air conditioner viewing your air conditioner Congratulations on the purchase of the air conditioner. We hope you enjoy the features of your air conditioner and stay cool or warm with optimal efficiency.Please read the user manual to get started and to make the best use of the air con...

viewing your air conditioner _25 ENGLISH Main parts Air flow blade Air intakeAir filter (under the grille) Display Display Display Filter reset indicator Fan indicator Timer indicator Power indicator Power button Remote control sensor X PC2NUSMEN 2 WAY CASSETTE Your air conditioner and display may loo...

26_ using your air conditioner using your air conditioner TIPS ON USING AIR CONDITIONER Here are some tips that you would follow when using your air conditioner. TOPIC RECOMMENDATION Cooling • If current outside temperatures are much higher than the selected indoor temperature, it may take time to b...

using your air conditioner _27 ENGLISH Frost & De-ice - The steam produced on the outdoor unit in De-ice mode is safe. No intervention is required; after about 10 minutes, the air conditioner operates again normally. The unit will not operate when it starts to de-ice. Fan • Fan may not operate f...

28_ cleaning and maintaining cleaning and maintaining the air conditioner For the best performance of your air conditioner, clean it periodically. When cleaning, make sure to unplug the unit for user’s safety. CLEANING THE EXTERIOR 1. Wipe the surface of the unit with a slightly wet or dry cloth whe...

30_ cleaning and maintaining cleaning and maintaining the air conditioner CLEANING THE GRILLE 2 way cassette X PC2NUSMEN 1. Open the front grille. Push the [ W ] tabs located in 3 places to unlock the groove on the front grille. The grille automatically drops. Two safety clips are mounted to the ins...

cleaning and maintaining _31 ENGLISH 4 way cassette X PC4NUSKAN / PC4NUSKEN / PC4NBSKAN 1. Open the front grille. Open the blades on the left and right side of the Samsung logo. Press both of the levers and pull the grille downward. Two safety clips are mounted to the front grille to prevent it from...

32_ cleaning and maintaining cleaning and maintaining the air conditioner CLEANING THE FILTER When cleaning the filter, make sure to unplug the power from the unit. Washable foam based Air filter captures large particles from the air. The filter is cleaned with a vacuum or by hand washing. Slim 1 way c...

cleaning and maintaining _35 ENGLISH 4. Dry the filter completely in the shade. When drying the air filter, make sure the filter is not exposed to direct sunlight. Otherwise, the form of the air filter may be changed. 5. Assemble the filter back and then close the grille. If the center of the grille is n...

38_ cleaning and maintaining cleaning and maintaining the air conditioner MAINTAINING YOUR AIR CONDITIONER If the air conditioner will not be used for an extended period of time, dry the air conditioner to maintain it in best condition. 1. Dry the air conditioner thoroughly by operating in Fan mode ...

cleaning and maintaining _39 ENGLISH The checks and maintenance operations described are essential to guarantee the efficiency of the air conditioner. The frequency of these operations varies according to the characteristics of the area, the amount of dust, etc. (1) The described operations should be...

40_ appendix appendix TROUBLESHOOTING Refer to the following chart if the air conditioner operates abnormally. This may save time and unnecessary expenses. PROBLEM SOLUTION The air conditioner does not operate immediately after it has been restarted. • Because of the protective mechanism, the applia...

appendix _43 ENGLISH OPERATION RANGES The table below indicates the temperature and humidity ranges the air conditioner can be operated within. Refer to the table for efficient use. MODE Indoor temperature Outdoor temperature Indoor humidity Cooling 18~32 °C -5~48 °C 80 % or less Heating 27 °C or les...

44_ installing your air conditioner Indoor Unit Installation It is recommended to install the Y- joint before installing the indoor unit. 1. Place the pattern sheet on the ceiling at the spot where you want to install the indoor unit. Since the diagram is made of paper, it may shrink or stretch slig...

installing your air conditioner _45 ENGLISH 1. To avoid condensation problems, place T13.0 or thicker Acrylonitrile Butadien Rubber separately around each refrigerant pipe. Always make the seam of pipes face upwards. Note No gap NBR( T13.0 or thicker) 2. Wind insulating tape around the pipes and dra...

46_ installing your air conditioner J Flexible hose Installation 1. The drain pipe should be installed within 100 mm from the flexible hose, lift up from 100 mm to 550 mm and lift down 20 mm or more. 2. Install horizontal drainpipe with a slope of 1/100 or more and fix it by hanger space of 1~1.5 m....

installing your air conditioner _47 ENGLISH Setting an indoor unit address and installation option Set the indoor unit address and installation option with remote controller option. Set the each option separately since you cannot set the ADDRESS setting and indoor unit installation setting option at...

installing your air conditioner _57 ENGLISH Changing a particular option Option SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 Explanation PAGE MODE The option mode you want to change The tens’ digit of an option SEG you will change The unit digit of an option SEG you will change Changed value Remote Controller Disp...

QUESTIONS OR COMMENTS? DB68-03568A-10 COUNTRY CALL OR VISIT US ONLINE AT UK 0330 SAMSUNG (7267864) www.samsung.com/uk/support IRELAND (EIRE) 0818 717100 www.samsung.com/ie/support GERMANY 06196 77 555 77 *OTH www.samsung.com/de/support FRANCE 01 48 63 00 00 www.samsung.com/fr/support ITALIA 800-SAMS...

5 ENGLISH Preparing for installation Outdoor unit classification Shape Model Heat Recovery 1phase AM040*XMDERAM050*XMDERAM060*XMDER 3phase AM040*XMDGRAM050*XMDGRAM060*XMDGR Installation combination ▶ You must install the indoor unit that uses R-410A only. ▶ If sum capacity of the combined indoor uni...

6 Preparing for installation Moving the Outdoor Unit ▶ Select the moving route in advance. ▶ Be sure that moving route is safe from the weight of the outdoor unit. ▶ Do not slant the product more than 30˚ when carrying it. (Do not lay the product down sideways.) ▶ The surface of the heat exchanger i...

7 ENGLISH Installation Guide at the seashore Make sure to follow below guides when installing at the seashore. 1. Do not install the product in a place where it is directly exposed to sea water and sea breeze. - Make sure to install the product behind a structure (such as building) that can block se...

8 Space requirement for installation • Install the indoor unit away from any interfering sources such as radio, computer, stereo equipment and also select a place where the electrical wiring work and an indoor unit installation are possible. - Especially keep the unit at least 3m away from the elect...

9 ENGLISH ▶ Make a space for ventilation and service as seen in the picture. ▶ When multiple outdoor units are combined for installation, allow enough space for ventilation against a wall. If the ventilation space is not allowed, product malfunction may occur. ▶ The side with logo is the front side ...

10 Space requirement for installation When installing more than 1 outdoor unit ※ When 3 sides of the outdoor unit are blocked by the wall (Unit : mm) 300 or mor e 300 or more 600 or more 600 or more 600 or more ※ When the walls are blocking front and the rear of the outdoor units 300 or mor e 1500 o...

11 ENGLISH Installation and base ground work for an outdoor unit ▶ Install the outdoor unit 150mm higher than the base ground and install the drain hole to connect the pipe to the drainage. ▶ When the front fan of an outdoor unit is installed in a place where the average snowfall is more than 150mm,...

12 Installation and base ground work for an outdoor unit • If the outdoor unit is not fixed securely, product may fall and it might cause loss of life or property damage. • Do not install the outdoor unit on a wood palette. • Fix the outdoor unit securely to the base ground with anchor bolts. • The ...

13 ENGLISH Tool Work If compatible with conventional tool Vacuum pump Vacuum drying Compatible (Use products which contain the check valve to prevent the oil from flowing backward into the outdoor unit.) Use the one that can be vacuumed up to 100.7kpa(5Torr.-755mmHg). Scale for refrigerant charging ...

14 Refrigerant pipe installation Selecting refrigerant pipe and branch joint for Heat Pump (A) (B) (C) (D) (E) (E) First branch joint ▶ Install the refrigerant pipe according to the main pipe size of each outdoor unit capacity. ▶ When the pipe length between an outdoor unit and the farthest indoor u...

15 ENGLISH The size of the pipe between the branch joint and the indoor unit (C) Make a selection according to indoor unit capacity. Indoor unit capacity (kW) Liquid pipe (mm) Gas pipe (mm) 6.0 kW and below ø6.35 ø12.70 6.1 kW ~ 16.0 kW ø9.52 ø15.88 16.1 kW ~ 23.0 kW ø9.52 ø19.05 Selecting the first...

16 Refrigerant pipe installation Selecting refrigerant pipe and branch joint for Heat Recovery (A) (B) (C) (D) (E) (E) (E) (F) ▶ Install the refrigerant pipe according to the main pipe size of each outdoor unit capacity. ▶ When the pipe length between an outdoor unit and the farthest indoor unit inc...

17 ENGLISH Selecting the first branch joint (D) The first Y-joint(D) for liquid and low pressure gas pipes is MXJ-YA2512M regardless of the outdoor unit capacity. The first Y-joint(D) for high pressure gas pipes is MXJ-YA1500M regardless of the outdoor unit capacity. Keeping refrigerant pipe To prev...

18 Refrigerant pipe installation 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 of ...

19 ENGLISH Connecting the flared pipes ▶ Check if the flaring is properly done according to the standard size. ▶ Align the center of the piping and tighten the flare nut with your hands. Then, tighten the flare nut with torque wrench in a direction of the arrow indicated in below illustration. ▶ Mak...

20 Refrigerant pipe installation Pipe installation for an outdoor unit Pipe direction The refrigerant pipe can be pulled out from front, flank, rear, and bottom side, so install it depending on the installation site condition. Caution for using knock-out hole • Make sure not to damage the exterior o...

21 ENGLISH Installing the branch joints Branch joints must be installed ‘horizontally’ or ‘vertically’. Horizontal installation Vertical installation • For A~J type branch joints : Connect the branch joint to the connection pipe with the provided reducer. • For K~Z type branch joints : Cut the conne...

22 Refrigerant pipe installation Installing the distribution header 1. Select the reducer that fits the diameter of the pipe. <Gas side> Socket Pipe* To indoor unit Pipe* Socket To outdoor unit <Liquid side> Socket Pipe* To indoor unit Pipe* Socket To outdoor unit Provided item * Pipe : ...

23 ENGLISH 3. Install the distribution header horizontally. ▶ Install the distribution header horizontally so that its ports does not face down. Below ±10° Horizon line Socket Distribution header Pipe (Separately purchased item) Below ±15° Horizon line Horizon line < Liquid side > Below ±15° H...

24 Refrigerant pipe installation • Indoor units without internal EEV (AM****NTD**, AM****NAD**) can not be connected directly to the HR Changer or the MCU • Please connect theses indoor units using EEV Kit (MEV-E**SA, MXD-E**K***A)• You can connect the previous MCU (MCU-S4NEK3N, MCU-S2NEK2N, MCU-S1N...

25 ENGLISH How to connect the pipes Pipe connection from outdoor unit Pipe connection to the indoor unit Protect with wet towel when welding Pipe connection to the another MCU Low pressure gas pipe connection (welding) High pressure gas pipe connection (welding)Liquid pipe connection (welding) ※ Whe...

26 Refrigerant pipe installation Examples of the refrigerant pipe installation for Heat Pump Using Y-Joint Using Distribution header

27 ENGLISH Examples of the correct refrigerant pipe installation for Heat Recovery For serial installation 1)* HR Changer (E) or MCU (F) HR Changer (E) 1)* Direct-connected indoor unit without HR Changer/MCU (for HR only) - This indoor unit can only be used for cooling operation. (Heating operation ...

28 Refrigerant pipe installation Examples of the incorrect refrigerant pipe installation for Heat Recovery Missing HR Changer for serial installation Missing HR Changer for parallel installation MCU (F) MCU (F) MCU (F) HR Changer (E) Incorrect order Branch location error MCU (F) HR Changer (E) MCU (...

29 ENGLISH Allowable length of the refrigerant pipe and the installation examples for Heat Pump Connection by Y-joint Outdoor unit Connection by Y-joint/EEV kit Outdoor unit Classification Y-joint connection Y-joint / EEV kit connection Maximum allowable length of pipe Outdoor unit ~ Indoor units Ac...

30 Refrigerant pipe installation Connection by header joint g Outdoor unit Header joint Indoor unit Connection by Y-joint/header joint H2 H1 f c g Outdoor unit Indoor unit Header joint Y-joint Classification Y-joint connection Y-joint / EEV kit connection Maximum allowable length of pipe Outdoor uni...

31 ENGLISH Allowable length of the refrigerant pipe and the installation examples for Heat Recovery Installing with MCU only a b c d e f g h i j H2 H1 H3 HR Changer MCU Installing with MCU and Y-joint a b c g h i j k I m n o d e f H1 H4 H2 H3 HR Changer HR Changer MCU Classification Installing with ...

32 Refrigerant pipe installation Performing air tightening test ▶ Use tools for R-410A only to prevent the inflow of foreign substances and to resist the internal pressure. ▶ Use dry Nitrogen gas to do an airtight test as below. Apply pressure to the liquid side pipe, gas side pipe with Nitrogen gas...

33 ENGLISH Vacuuming a pipe and an indoor unit ▶ Use the tools for R-410A only to prevent the inflow of foreign substances and resist against the internal pressure. ▶ Use the vacuum pump with the check valve to prevent pump oil from flowing backward while the vacuum pump is stopped suddenly. ▶ Use t...

34 Refrigerant pipe installation Selecting additional refrigerant charging ▶ Basic refrigerantThe basic amount of additional refrigerant charged at a factory Model Refrigerant Factory charge(kg) AM040*XMDER R-410A 3.2 AM050*XMDER 3.2 AM060*XMDER 3.3 AM040*XMDGR 3.2 AM050*XMDGR 3.2 AM060*XMDGR 3.3 ▶ ...

35 ENGLISH (Unit : kg) Product Capacity (kW) 1.5 1.7 2.2 2.8 3.6 4.5 5.6 6 7.1 8.2 9 9.3 11.2 12.8 14 16 18 500CMH 1000CMH Interior 1way cassette (AM***NN1PEH/**) 0.15 0.15 Slim 1way cassette (AM***NN1D*H/**) 0.25 0.25 0.25 0.32 0.32 4way cassette S (600x600) (AM***NNNDEH/**) 0.29 0.29 0.29 0.29 0.3...

36 Refrigerant pipe installation Connecting the drain hose to the outdoor unit When using the air conditioner in the heating mode, ice may accumulate . During de-icing (defrost operation), the condensed water must be drained off safely. Consequently, you must install a drain hose on the outdoor unit...

37 ENGLISH Selecting the insulation of refrigerant pipe ▶ Insulate the gas pipe and liquid pipe by referring to the thickness of insulator for each pipe size. ▶ The standard condition is 30°C, with humidity less than 85%. In the conditions of high humidity, use one grade thicker. Pipe Pipe size (mm)...

38 Refrigerant pipe installation Pipe insulation Pipe insulation after insulating EEV kit • 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 contacting the gas side and liquid side pipe, use thicker insulati...

39 ENGLISH Insulating the header joint ▶ Fasten the header joint using a cable tie and cover the connected part. ▶ Insulate the header joint and the brazing part and wrap the connected part with an adhesive insulation tape to prevent dew formation. Insulation Adhesive insulation tape Insulation for ...

40 Wiring work ▶ Wiring work should be performed in accordance with related laws such as ‘Technical specification on electric installation’, ‘Wiring regulations’ or ‘Installation manual’. ▶ Copper cable should be used for wiring work and all the wires or parts should be rated products. ▶ Wiring work...

41 ENGLISH Overall System Configuration Connection of the power cable (1 phase 2 wires) Distribution board Outdoor unit Indoor unit Communication cable 220V Wired remote controller Earth 1 phase 2 wires 220V-240V~ MCCB + ELB ELCB Or MCCB + ELB ELCB Or Earth 1 phase 2 wires 220V-240~ Connection of th...

42 Wiring work Connection of the power cable (3 phase 4 wires) Distribution board Outdoor unit Indoor unit Communication cable 220V Wired remote controller Earth 1 phase 2 wires 220V-240V~ MCCB + ELB ELCB Or MCCB + ELB ELCB Or Earth 3 phase 4 wires 380V~ Connection of the power cable (3 phase 4 wire...

43 ENGLISH Specification for circuit breaker and power supply cord ▶ Power supply cord is not supplied with air conditioner. ▶ Select the power supply cord in accordance with relevant local and national regulations. ▶ Wire size must comply with the applicable local and national code. ▶ The appliance...

44 Wiring work Connecting the HR Changer/MCU (MCU-R4NEK0N, MCU-S6NEK3N) Example Outdoor unit Indoor unit Indoor unit ELB ELB MCCB MCCB 220-240 V~ ▶ Power must be supplied to the HR Changer/MCU separately from the outdoor unit. ▶ Connect the communication cable of the outdoor unit (F1, F2) to the com...

45 ENGLISH Selecting compressed ring terminal ▶ Select a compressed ring terminal of a connecting power cable based on a nominal dimensions for cable. ▶ Cover a compressed ring terminal and a connector part of the power cable and then connect it. Silver solder Nominal dimensions for cable (mm 2 ) 4/...

46 Wiring work Installing grounding wire ▶ Grounding must be done by a qualified installer for your safety. ▶ Use the grounding wire by referring to the specification of the electric cable of the outdoor unit. Grounding the power cable ▶ The standard of grounding may vary according to the rated volt...

47 ENGLISH Grounding work If the power distribution circuit does not have a grounding or the grounding does not comply with specifications, a ground rod must be installed. The corresponding accessories are not supplied with the air conditioner. 1. Select a grounding rod that complies with the specif...

48 Charging refrigerant ▶ The R-410A refrigerant is blended refrigerant. Add only liquid refrigerant. ▶ Measure the quantity of the refrigerant according to the length of the liquid side pipe. Add quantity of the refrigerant using a scale. Important information: regulation regarding the refrigerant ...

49 ENGLISH Charging refrigerant ▶ 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 and liquid side service valve. Then, add remaining...

50 Basic segment display Step Display content Display At initial power input Checking segment display SEG 1 SEG 2 SEG 3 SEG 4 “8” “8” “8” “8” While setting communication between indoor and outdoor unit (Addressing) Number of connected indoor units SEG 1 SEG 2 SEG 3 SEG 4 “A” “d” Number of communicat...

52 Setting outdoor unit option switch and key function Installing and setting the option with tact switch and explanation of the functions Setting the option 1. Press and hold K2 to enter the option setting. (Only available when the operation is stopped) - If you enter the option setting, display wi...

55 ENGLISH Optional item Input unit SEG1 SEG2 SEG3 SEG4 Function of the option Remarks Snow accumulation prevention control Main 1 4 0 0 Enabled During snow accumulation, the fan may spin even when the unit is not in operation 0 1 Disabled (Factory default) Unused option Main 1 5 0 0 Unused option U...

56 Setting outdoor unit option switch and key function • After installing the product, be sure to perform leak tests on the piping connections. After pumping down refrigerant to inspect or relocate the outdoor unit, be sure to stop the compressor and then remove the connected pipes. - Do not operate...

58 Setting the HR Changer/MCU and Pipe Addresses (for HR Only) You can set the HR Changer/MCU address, the HR Changer/MCU ports to use, and the address for each HR Changer/MCU port connected to each indoor unit. Setting the HR Changer/MCU address and the HR Changer/MCU ports to use You can set the H...

59 ENGLISH Setting the Pipe Addresses Manually You can use the wired or wireless remote control or the S-NET Pro 2 to set the pipe addresses for each indoor unit. Setting by using the wired or wireless remote control (For how to operate the remote control buttons, see the remote control user manual....

60 Setting the HR Changer/MCU and Pipe Addresses (for HR Only) 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 HR Changer/MCU port that is connected to an indoor unit.If an HR Cha...

61 ENGLISH To run the Auto pipe pairing operation, take the following steps: 1. Press the K2 button 10 times on the main PBA of the outdoor unit to start the Auto pipe pairing operation. (Display : .) Outdoor temperature < 24°C 24°C ≤ Outdoor temperature < 30 °C 30°C ≤ Outdoor temperature Indo...

62 Inspection and check operation Precautions before check operation • When the outdoor temperature is low, turn on the main power 3 hours before beginning the operation. - If you start the operation immediately after turning on the main power, it may cause serious damage to the part within the prod...

63 ENGLISH Check operation 1. Use KEY MODE to run check operation. - When the check operation is not completed, UP (unprepared) will appear on the LED after the communication check and restrict compressor from operating. (UP Mode will be cleared automatically when check operation is completed.) - Ch...

64 Checking lists after finishing installation ▶ Before supplying power, measure the power terminal (L, N) and outdoor unit grounding using insulation- resistance tester. - The measured value should be above 30MΩ. • You must not measure the communication terminal since the communication circuit may ...

65 ENGLISH Installing the drain pipe • Have you checked whether the drain pipes of the indoor unit and outdoor unit are connected together? • Have you completed the drain test? • Is the drain pipe properly insulated? Wiring work • Are the power cable and communication cable tightened firmly on the t...

66 Trial operation Writing and keeping installation checking card ▶ Installation checking card is enclosed with the installation manual. - Installer should fill out the front side of the card meticulously. - Write basic information such as date of installation, name of an installer, contact informat...