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SPLIT-TYPE ROOM AIR CONDITIONER
Installation Manual
Forest Series
All Model Numbers
KWX-09HRDI
KWX-12HRDI
KWX-18HRDI
KWX-24HRDI
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 Kaisai Forest Series
- Page 1 SPLIT-TYPE ROOM AIR CONDITIONER Installation Manual Forest Series All Model Numbers KWX-09HRDI KWX-12HRDI KWX-18HRDI KWX-24HRDI 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.
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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 Caution: Risk of fire (for R32/R290 refrigerant ony ) Air Evacuation....
- 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.
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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 Name Shape Quantity SPLIT-TYPE ROOM AIR CONDITIONER Owner’s Manual Forest 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.
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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 14) (Page 17) Wrap Piping and Cable (not applicable for some locations in the US ) (Page 18) STEP Mount Indoor Unit (Page 18) Page 9 ...
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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. 3.1 Functional Filter (On Front of Remote Controller Wall Mounting Plate Main Filter - Some Units) Remote controller Holder... -
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 398mm(15.67in) 233.1mm(9.17in) 146.5mm(5.76in) Indoor unit outline Right rear wall Left rear wall hole 65mm (2.5in) hole 65mm (2.5in) 115.6mm(4.55in) 117.5mm(4.62in) 45mm(1.7i n ) 101.6mm(4i n ) 715mm(28in) Model A Fig.3.2 Fig. 3.2 398mm(15.98in) 241mm(9.48in) 228.5mm(8.99in) MOUNTING PLATE DIMENSIONS Indoor unit Different models have different mounting plates.
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Page 14: Prepare Refrigerant Piping
3. Use scissors to cut down the length of the Step 4: Prepare refrigerant piping insulating sleeve to reveal about 15cm (6in) The refrigerant piping is inside an insulating of the refrigerant piping. This serves two sleeve attached to the back of the unit. You must purposes: prepare the piping before passing it through the •... -
Page 15: Connect Drain Hose
Step 5: Connect drain hose PLUG THE UNUSED DRAIN HOLE By default, the drain hose is attached to the left- To prevent unwanted leaks you must plug hand side of unit (when you’re facing the back the unused drain hole with the rubber plug of the unit). - Page 16 BEFORE PERFORMING ELECTRICAL WORK, READ THESE REGULATIONS All wiring must comply with local and national electrical codes, and must be installed by a licensed electrician. All electrical connections must be made according to the Electrical Connection Diagram located on the panels of the indoor and outdoor units. If there is a serious safety issue with the power supply, stop work immediately.
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Page 17: Connect Signal Cable
are printed on the circuit board, such as: Step 6: Connect signal cable Indoor unit: T5A/250VAC The signal cable enables communication between Outdoor unit(applicalbe to units adpot the indoor and outdoor units. You must first R32 or R290 refrigerant only): choose the right cable size before preparing it for T20A/250VAC(<=18000Btu/h units) connection. -
Page 18: Wrap Piping And Cables
Facing the back of the unit, remove the plastic DO NOT INTERTWINE SIGNAL CABLE WITH panel on the bottom left-hand side. OTHER WIRES 6. Feed the signal wire through this slot, from While bundling these items together, do not the back of the unit to the front. intertwine or cross the signal cable with any 7. - Page 19 If refrigerant piping is already embedded in Connect drain hose and refrigerant piping (refer to Refrigerant Piping Connection the wall, do the following: section of this manual for instructions). Hook the top of the indoor unit on the upper Keep pipe connection point exposed to hook of the mounting plate.
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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...
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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). A minimum pipe run of 3 metres is required to minimise vibration &... -
Page 26: Remove Burrs
DO NOT DEFORM PIPE WHILE CUTTING Flare nut Be extra careful not to damage, dent, or deform the pipe while cutting. This will drastically reduce the heating efficiency of the unit. Copper pipe Step 2: Remove burrs Burrs can affect the air-tight seal of refrigerant piping connection. -
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.
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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
Flare nut Close the Low Pressure side of the manifold gauge, and turn off the vacuum pump. Wait for 5 minutes, then check that there has been no change in system pressure. If there is a change in system pressure, refer to Gas Leak Check section for information alve body on how to check for leaks. -
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.
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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: Information Servicing
Information Servicing (Required for the units adopt R32/R290 Refrigerant only) 1. Checks to the area Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the risk of ignition is minimised. For repair to the refrigerating system, the following precautions shall be complied with prior to conducting work on the system. - Page 36 the charge size is in accordance with the room size within which the refrigerant containing parts are installed; the ventilation machinery and outlets are operating adequately and are not obstructed; if an indirect refrigerating circuit is being used, the secondary circuits shall be checked for the presence of refrigerant;...
- Page 37 11. Repair to intrinsically safe components Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the permissible voltage and current permitted for the equipment in use. Intrinscially safe components are the only types that can be worked on while live in the presence of a flammable atmosphere.
- Page 38 When the final OFN charge is used, the system shall be vented down to atmospheric pressure to enable work to take place. This operation is absolutely vital if brazing operations on the pipe-work are to take place. Ensure that the outlet for the vacuum pump is not closed to any ignition sources and there is ventilation available.
- Page 39 18. Labelling Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be dated and signed. Ensure that there are labels on the equipment stating the equipment contains flammable refrigerant. 19. Recovery When removing refrigerant from a system, either for service or decommissioning, it is recommended good practice that all refrigerants are removed safely.
- Page 40 The design and specifications are subject to change without prior notice for product improvement. Consult with the sales agency or manufacturer for details. CS397I-AF(R32)
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