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TGM CS78421-548-754 Owner's Manual

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SPLIT-TYPE ROOM AIR CONDITIONER
Installation Manual
Dream Inverter Series
All Model Numbers
IMPORTANT NOTE:
Read this manual carefully before installing
or operating your new air conditioning
unit. Make sure to save this manual for
future reference.
CS78421-548-754

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Summary of Contents for TGM CS78421-548-754

  • Page 1 SPLIT-TYPE ROOM AIR CONDITIONER Installation Manual Dream Inverter Series All Model Numbers CS78421-548-754 IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

  • Page 2: Table Of Contents

    Table of Contents Installation Manual Safety Precautions......Accessories........6 Installation Summary - Indoor Unit..Unit Parts.......... 10 Indoor Unit Installation..11 1. Select installation location......11 2. Attach mounting plate to wall....12 3. Drill wall hole for connective piping.... 12 4.
  • Page 3 Refrigerant Piping Connection..25 A. Note on Pipe Length..........25 B. Connection Instructions –Refrigerant Piping..... 25 1. Cut pipe.............. 25 2. Remove burrs............26 3. Flare pipe ends............ 26 4. Connect pipes............. 27 Air Evacuation....29 1. Evacuation Instructions...... 29 2.
  • Page 4 Safety Precautions Read Safety Precautions Before Installation Incorrect installation due to ignoring instructions can cause serious damage or injury. The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION. This symbol indicates that ignoring instructions may cause death or serious injury.
  • Page 5 WARNING For all electrical work, follow all local and national wiring standards, regulations, and the Installation Manual. You must use an independent circuit and single outlet to supply power. Do not connect other appliances to the same outlet. Insufficient electrical capacity or defects in electrical work can cause electrical shock or fire.

  • Page 6: Accessories

    Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. Name Shape Quantity...
  • Page 7 Quantity SPLIT-TYPE ROOM AIR CONDITIONER Owner’s Manual All Easy Series All Model Numbers Owner’s manual CS78421-548-754 IMPORTANT NOTE: Read this manual carefully before installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

  • Page 8: Installation Summary - Indoor Unit

    Installation Summary - Indoor Unit 15cm (5.9in) 12cm 12cm (4.75in) (4.75in) 2.3m (90.55in) Select Installation Location Determine Wall Hole Position (Page 11) (Page 12) Attach Mounting Plate Drill Wall Hole (Page 12) (Page 12)  Page 8 ...
  • Page 9 Connect Piping Prepare Drain Hose Connect Wiring (Page 25) (Page 16) (Page 17) Wrap Piping and Cable (not applicable for some locations in the US ) (Page 19) STEP Mount Indoor Unit (Page 19)  Page 9 ...

  • Page 10: Unit Parts

    Unit Parts NOTE: The installation must be performed in accordance with the requirement of local and national standards. The installation may be slightly different in different areas. Air-break switch （1） （2） Fig. 2.1 Remote Controller Wall Mounting Plate Air filter(pull it out) Remote Controller Holder Drainage Pipe Front Panel...

  • Page 11: Indoor Unit Installation

    Indoor Unit Installation Fig. 3.1-a install unit in the following DO NOT Installation Instructions – Indoor locations: Unit Near any source of heat, steam, or combustible gas PRIOR TO INSTALLATION Near flammable items such as curtains or Before installing the indoor unit, refer to the clothing label on the product box to make sure that the model number of the indoor unit matches the...

  • Page 12: Attach Mounting Plate To Wall

    Refer to the following diagram to ensure proper distance from walls and ceiling: 15cm (5.9in) or more 12cm (4.75in) 12cm (4.75in) or more or more 2.3m (90.55in) or more Fig. 3.1-b Step 2: Attach mounting plate to wall Step 3: Drill wall hole for connective piping The mounting plate is the device on which you You must drill a hole in the wall for refrigerant will mount the indoor unit.
  • Page 13 Wall Indoor Outdoor 409mm(16.1in) Indoor unit outline 318mm(12.5in) 249mm(9.8in) pipe hole pipe hole 65mm φ φ 65mm （2.56 in） （2.56 in） 102mm(4in) 153mm(6in) 717mm(28.2in) Model A 452.7mm(17.8in) Indoor unit outline 406.4mm(16in) 249mm(9.8in) Fig.3.2 Fig. 3.2 pipe hole pipe hole 65mm φ...

  • Page 14: Prepare Refrigerant Piping

    Step 4: Prepare refrigerant piping If refrigerant piping is already embedded in The refrigerant piping is inside an insulating the wall, do the following: sleeve attached to the back of the unit. You must Step 1:Hook the indoor unit on the mounting prepare the piping before passing it through the plate: hole in the wall.

  • Page 15: Connect Drain Hose

    Step 3. Connect drain hose and refrigerant piping (refer to Refrigerant Piping Connection section of this manual for instructions). Step 4. Keep pipe connection point exposed to perform the leak test (refer to Electrical Checks and Leak Checks section of this manual). Step 5.
  • Page 16 PLUG THE UNUSED DRAIN HOLE 4. Connect the indoor unit’s refrigerant piping To prevent unwanted leaks you must plug to the connective piping that will join the the unused drain hole with the rubber plug indoor and outdoor units. Refer to the provided.

  • Page 17: Connect Signal Cable

    WARNING BEFORE PERFORMING BEFORE PERFORMING ANY ELECTRICAL ELECTRICAL WORK, READ OR WIRING WORK, TURN OFF THE MAIN THESE REGULATIONS POWER TO THE SYSTEM. 1. All wiring must comply with local and national electrical codes, and must be Step 6: Connect signal cable installed by a licensed electrician.

  • Page 18: Mount Indoor Unit

    TAKE NOTE OF FUSE SPECIFICATIONS WARNING The air conditioner’s circuit board (PCB) is designed with a fuse to provide overcurrent ALL WIRING MUST PERFORMED STRICTLY protection. The specifications of the fuse IN ACCORDANCE WITH THE WIRING are printed on the circuit board, such as: DIAGRAM LOCATED ON THE INSIDE OF THE T3.15A/250VAC, T5A/250VAC, etc.

  • Page 19: Wrap Piping And Cables

    Step 7: Wrap piping and cables DO NOT WRAP ENDS OF PIPING Before passing the piping, drain hose, and the When wrapping the bundle, keep the ends signal cable through the wall hole, you must of the piping unwrapped. You need to access bundle them together to save space, protect them to test for leaks at the end of the them, and insulate them.

  • Page 20: Outdoor Unit Installation

    Outdoor Unit Installation Installation Instructions – Outdoor Unit Step 1: Select installation location Before installing the outdoor unit, you must choose an appropriate location. The following are standards that will help you choose an appropriate location for the unit. Proper installation locations meet the following standards: Meets all spatial requirements shown in ...

  • Page 21: Install Drain Joint

    If the drain joint comes with a rubber seal SPECIAL CONSIDERATIONS FOR EXTREME (see Fig. 4.4 - A ), do the following: WEATHER Fit the rubber seal on the end of the drain joint If the unit is exposed to heavy wind: that will connect to the outdoor unit.

  • Page 22: Anchor Outdoor Unit

    Step 3: Anchor outdoor unit The outdoor unit can be anchored to the ground or to a wall-mounted bracket. UNIT MOUNTING DIMENSIONS Air inlet The following is a list of different Air inlet outdoor unit sizes and the distance between their mounting feet. Prepare the installation base of the Air outlet unit according to the dimensions...

  • Page 23: Connect Signal And Power Cables

    If you will install the unit on a wall-mounted BEFORE PERFORMING bracket , do the following: ELECTRICAL WORK, READ THESE REGULATIONS All wiring must comply with local and CAUTION national electrical codes, and must be Before installing a wall-mounted unit, make installed by a licensed electrician.
  • Page 24 ATTENTION TO LIVE WIRE WARNING While crimping wires, make sure you clearly BEFORE PERFORMING ANY ELECTRICAL distinguish the Live (“L”) Wire from other wires. OR WIRING WORK, TURN OFF THE MAIN POWER TO THE SYSTEM. WARNING Prepare the cable for connection: ALL WIRING MUST PERFORMED STRICTLY USE THE RIGHT CABLE IN ACCORDANCE WITH THE WIRING...

  • Page 25: Refrigerant Piping Connection

    Refrigerant Piping Connection Note on Pipe Length The length of refrigerant piping will affect the performance and energy efficiency of the unit. Nominal efficiency is tested on units with a pipe length of 5 meters (16.5ft), in North America, the standard pipe length is 7.5m (25’).

  • Page 26: Remove Burrs

    2. Using a pipe cutter, cut the pipe a little longer than the measured distance. 3. Make sure that the pipe is cut at a perfect 90° Flare nut angle. Refer to Fig. 5.1 for bad cut examples. 90° Oblique Rough Warped Copper pipe...

  • Page 27: Connect Pipes

    Place flaring tool onto the form. Instructions for Connecting Piping to Turn the handle of the flaring tool clockwise Indoor Unit until the pipe is fully flared. Align the center of the two pipes that you will Remove the flaring tool and flare form, then connect.
  • Page 28 Instructions for Connecting Piping USE SPANNER TO GRIP MAIN to Outdoor Unit BODY OF VALVE Torque from tightening the flare nut can snap Unscrew the cover from the packed valve on off other parts of valve. the side of the outdoor unit. (See Fig. 5.9) Valve cover Fig.

  • Page 29: Air Evacuation

    Air Evacuation Preparations and Precautions Evacuation Instructions Air and foreign matter in the refrigerant circuit Before using the manifold gauge and vacuum can cause abnormal rises in pressure, which pump, read their operation manuals to familiarize can damage the air conditioner, reduce its yourself with how to use them properly.

  • Page 30: Note On Adding Refrigerant

    Open the Low Pressure side of the manifold gauge. Keep the High Pressure side closed. Flare nut Turn on the vacuum pump to evacuate the system. Run the vacuum for at least 15 minutes, or until the Compound Meter reads -76cmHG (-10 Pa).

  • Page 31: Electrical And Gas Leak Checks

    Electrical and Gas Leak Checks WARNING – RISK OF Electrical Safety Checks ELECTRIC SHOCK After installation, confirm that all electrical wiring ALL WIRING MUST COMPLY WITH LOCAL is installed in accordance with local and national AND NATIONAL ELECTRICAL CODES, regulations, and according to the Installation AND MUST BE INSTALLED BY A LICENSED Manual.

  • Page 32: Test Run

    Test Run Before Test Run List of Checks to Perform PASS/FAIL No electrical leakage Only perform test run after you have completed the following steps: Unit is properly grounded Electrical Safety Checks – Confirm that • the unit’s electrical system is safe and All electrical terminals operating properly properly covered...
  • Page 33 DOUBLE-CHECK PIPE CONNECTIONS During operation, the pressure of the refrigerant circuit will increase. This may reveal leaks that were not present during your initial leak check. Take time during the Test Run to double-check that all refrigerant pipe connection points do not have leaks. Refer to Gas Leak Check section for instructions.

  • Page 34: European Disposal Guidelines

    European Disposal Guidelines This appliance contains refrigerant and other potentially hazardous materials. When disposing of this appliance, the law requires special collection and treatment. Do not dispose of this product as household waste or unsorted municipal waste. When disposing of this appliance, you have the following options: •...

  • Page 35: Impedance Information

    Impedance Information (Applicable to some countries of Middle East Area only) This appliance MWHDRT09S/MRHDRT09AS can be connected only to a supply with system impedance no more than 0.459Ω. In case necessary, please consult your supply authority for system impedance information. This appliance MWHDRT12S/MRHDRT12AS can be connected only to a supply with system impedance no more than 0.398Ω.
  • Page 36 The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details.

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