CH-09LCDTU/I CH-12LCDTU/I CH-18LCDTU/I CH-24LCDTU/I
Table of Contents Installation Manual 1 Accessories ....................................... 05 2 Safety Precautions . .......................... 06 3 Installation Overview 07 ....................... 4 Indoor Unit Installation . ................... 08 a. Indoor Unit Parts .............................. 08 b. Indoor Unit Installation Instructions . .... 09 5 Outdoor Unit Installation . 13 a. Outdoor Unit Installation Instructions . 13 b. Outdoor Unit Types and Specifications .... 14 c.
7 Refrigerant Piping Connection....................... 18 A. Notes on Pipe Length and Elevation .............. 18 B. Refrigerant Piping Connection Instructions ...20 L N 8 Wiring................................................. a. Outdoor Unit Wiring .................. b. Indoor Unit Wiring ..................... c. Power Specifications ................... 9 Air Evacuation .................................................. a. Evacuation Instructions ................................ b.
1 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 equipment failure.
Safety Precautions 2 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. WARNING Failure to observe a warning may result in death. The product must be installed by installers or contractors who are licensed HVAC professionals and in compliance with all local, state and provincial laws.
INSTALLATION ORDER 1 3 2 Install the indoor unit (Page 8) 6 Install the outdoor unit (Page 13) 5 MC Install the drainpipe (Page 15) 4 L N MC Evacuate the refrigeration system (Page 28) Connect the wires (Page 23) Connect the refrigerant pipes (Page 18) 7 Perform a test run (Page 30) Page 7 Unit Installation Overview 3 Installation Overview
4 Indoor Unit Installation Indoor Unit Installation Indoor Unit Parts Air inlet Electric control cabinet Air filter(on selected models) Drain hose Air outlet Fig. 4.1 Refrigerant connecting pipe Safety Precautions WARNING • Securely install the indoor unit on a structure that can sustain its weight.
Installation place >11.8in(30cm) Strong and durable ceiling >0.8in(2cm) >4in(10cm) >11.8in(30cm) Ceiling Floor Maintenance space > 7.9in (20cm) Service access (When no ceiling) B > 8.2in(250cm) Right side Left side Air outlet Air inlet > 11.8in(30cm) 23.6inx23.6in (60cmx60cm) checking orifice Fig. 4.2 Step 2: Hang indoor unit. 1. Please refer to the following diagrams to locate the four positioning screw bolt holes on the ceiling.
Air inlet dimensions Indoor Unit Installation Air filter Descending ventilation opening and mounted hook Air filter Electric control box Fig. 4.3 Table.4-1 (unit: inch/mm) Outline dimension MODEL (Btu/h) A 9K/12K 27.6/700 B 7.9/200 air outlet opening size C D 19.9/506 17.7/450 E F 6/152 21.1/537 air return opening size G 7.3/186 Size of mounted lug H I J 23.6/599 29.2/741 14.2/360 18K 34.6/880 8.3/210 26.5/674 23.6/600 5.4/136 27.8/706 7.5/190 30.8/782 36.
CAUTION Shockproof cushion 2. Install and fit pipes and wires after you have finished installing the main body.When choosing where to start, determine the direction of the pipes to be drawn out. Especially in cases where there is a ceiling involved, align the refrigerant pipes, drain pipes, and indoor and outdoor lines with their connection points before mounting the unit. 3. Install hanging screw bolts. Cut off the roof beam. Strengthen the point at which the cut was made. Consolidate the roof beam. 4.
Step 4: Adjust the air inlet direction (from rear side to under-side). Indoor Unit Installation 1. Take off the ventilation panel and flange. Step 5: Fresh air duct installation Dimension : Duct joint for fresh air Air return flange MODLE 18-60 Ø125mm(4.92”) Ventilation panel Ø160mm(6.3”) Fig. 4.11 2. Change the mounting positions of the ventilation panel and air return flange. Ventilation panel Fig. 4.
5 Outdoor Unit Installation Outdoor Unit Installation Instructions √ √ √ √ √ The area must be free of combustible gases and chemicals. The pipe length between the outdoor and indoor unit may not exceed the maximum allowable pipe length. If possible, DO NOT install the unit where it is exposed to direct sunlight. If possible, make sure the unit is located far away from your neighbors’ property so that the noise from the unit will not disturb them.
Split Type Outdoor Unit (Refer to Fig 5.4, 5.5, 5.6, 5.10 and Table 5.1) Vertical Discharge Type Outdoor Unit (Refer to Fig 5.7, 5.8, 5.9 and Table 5.2) (Wall or obstacle) Air Outlet H > 47” / 120cm Fig. 5.4 Outdoor Unit Installation W W Fig. 5.7 H W H Fig. 5.5 D Fig. 5.8 A D (Wall or obstacle) B Fig. 5.6 >11.8” / 30cm Table 5.1: Length Specifications of Split Type Outdoor Unit (unit: inch/mm) Outdoor Unit Dimensions Mounting Dimensions Air inlet >11.8” / 30cm >11.
0 ”/3 1.8 cm m fro ck ba 2. Insert the drain joint into the hole in the base pan of the unit. 3. Rotate the drain joint 90° until it clicks in place facing the front of the unit. 4. Connect a drain hose extension (not included) to the drain joint to redirect water from the unit during heating mode. If the drain joint doesn’t come with a rubber seal (see Fig. 5.12 - B ), do the following: 1. Insert the drain joint into the hole in the base pan of the unit. The drain joint will click in place. 2.
6 Drainpipe Installation The drainpipe is used to drain water away from the unit. Improper installation may cause unit and property damage. CAUTION Insulate all piping to prevent condensation, which could lead to water damage. • If the drainpipe is bent or installed incorrectly, water may leak and cause a water-level switch malfunction. • In HEAT mode, the outdoor unit will discharge water. Ensure that the drain hose is placed in an appropriate area to avoid water damage and slippage.
3. Using a 65-mm (2.5”) core drill, drill a hole in the wall. Make sure that the hole is drilled at a slight downward angle, so that the outdoor end of the hole is lower than the indoor end by about 12mm (0.5”). This will ensure proper water drainage (See Fig. 6.5). Place the protective wall cuff in the hole. This protects the edges of the hole and will help seal it once you finish installation. Units with a pump. 1. Remove the test cover. Fill the water pan with 2 liters of water.
7 Refrigerant Piping Connection Safety Precautions Notes On Pipe Length and Elevation WARNING • • Refrigerant Piping Connection • • All field piping must be completed by a licensed technician and must comply with the local and national regulations. When 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 refrigerant leakage.
CAUTION • CAUTION Oil traps If the indoor unit is installed higher than the outdoor unit: -If oil flows back into the outdoor unit’s compressor, this might cause liquid compression or deterioration of oil return. Oil traps in the rising gas piping can prevent this. An oil trap should be installed every 32.8ft (10m) of vertical suction line riser. (See Fig. 7.2) If the outdoor unit is installed higher than the indoor unit: -It is recommended that vertical suction risers not be upsized.
Table 7.2 Permitted length Total piping length 18K+18K 98’/30m 24K+24K 164’/50m L+Max (L1, L2) 30K+30K Piping length Drop height (farthest distance from the line pipe branch) 49’/15m L1, L2 (farthest distance from the line pipe branch) 32.8’/10m L1-L2 Drop height between indoor and outdoor unit 65.6’/20m H1 Drop height between two indoor units 1.6’/0.5m H2 Size of joint pipes for indoor unit Table 7.
Step 3: Flare pipe ends Table 7.5: PIPING EXTENSION BEYOND FLARE FORM Proper flaring is essential to achieve an airtight seal. 1. After removing burrs from cut pipe, seal the ends with PVC tape to prevent foreign materials from entering the pipe. 2. Sheath the pipe with insulating material. 3. Place flare nuts on both ends of pipe. Make sure they are facing in the right direction, because you can’t put them on or change their direction after flaring. See Fig. 7.
NOTE: Use both a spanner and a torque wrench when connecting or disconnecting pipes to/from the unit. NOTE: DO NOT intertwine signal cable with other wires. While bundling these items together, do not intertwine or cross the signal cable with any other wiring. 7. Thread this pipeline through the wall and connect it to the outdoor unit. 8. Insulate all the piping, including the valves of the outdoor unit. 9.
8 Wiring Safety Precautions WARNING • • • • • • • CAUTION • • • • Connect the outdoor wires before connecting the indoor wires. Make sure you ground the unit. The grounding wire should be located away from gas pipes, water pipes, lightning rods, telephone wires or other grounding wires. Improper grounding may cause electrical shock. DO NOT connect the unit to the power source until all wiring and piping is completed. Make sure that you do not cross your electrical wiring with your signal wiring.
Table 8.2: Other World Regions Rated Current of Nominal Cross-Sectional Appliance (A) Area (mm²) ≤6 0.75 6 - 10 10 - 16 16 - 25 25- 32 32 - 45 1 1.5 2.5 4 6 b. Using wire strippers, strip the rubber jacket from both ends of the signal cable to reveal approximately 5.9”(15cm) of wire. c. Strip the insulation from the ends. d. Using a wire crimper, crimp u-lugs on the ends. NOTE: When connecting the wires, strictly follow the wiring diagram found inside the electrical box cover. 2.
CAUTION • • While connecting the wires, please strictly follow the wiring diagram. The refrigerant circuit can become very hot. Keep the interconnection cable away from the copper tube. 4. Clamp down the cable with the cable clamp. The cable must not be loose or pull on the u-lugs. - Press “CONFIRM”. The air conditioning unit will then start the fan for airflow automatic adjustment. ON will flash during when the fan is on during automatic airflow adjustment. 5. Reattach the electric box cover.
Power Specifications NOTE: Electric auxiliary heating type circuit breaker/fuse need to add more than 10 A.
MODEL(Btu/h) ≤36K 37K~60K ≤36K 37K~60K PHASE FREQUENCY AND VOLT CIRCUIT BREAKER/FUSE(A) PHASE POWER (outdoor) FREQUENCY AND VOLT CIRCUIT BREAKER/FUSE(A) 1 Phase 1 Phase 1 Phase 1 Phase 208-240V 208-240V 208-240V 208-240V 15/10 3 Phase 15/10 3 Phase 15/10 3 Phase 15/10 3 Phase 380-420V 380-420V 208-240V 208-240V 25/20 32/25 32/25 45/35 POWER (indoor) Inverter Type A/C Power Specifications MODEL(Btu/h) ≤18K 19K~24K 25K~36K 37K~48K 49K~60K PHASE 1 Phase 1 Phase 1 Phase 1 Phase 1 P
9 Air Evacuation Safety Precautions CAUTION • Use a vacuum pump with a gauge reading lower than -0.1MPa and an air discharge capacity above 40L/min. • The outdoor unit does not need to be vacuumed. DO NOT open the outdoor unit’s gas and liquid stop valves. • Ensure that the Compound Meter reads -0.1MPa or below after 2 hours. If after three hours the gauge reading is still above -0.1MPa, check if there is a gas leak or water inside the pipe.
Note On Adding Refrigerant CAUTION • Refrigerant charging must be performed after wiring, vacuuming, and the leak testing. • DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system. Doing so can damage the unit or impact it’s functioning. • Charging with unsuitable substances may cause explosions or accidents. Ensure that the appropriate refrigerant is used. • Refrigerant containers must be opened slowly. Always use protective gear when charging the system.
Test Run Before Test Run A test run must be performed after the entire system has been completely installed. Confirm the following points before performing the test: a) Indoor and outdoor units are properly installed. b) Piping and wiring are properly connected. c) No obstacles near the inlet and outlet of the unit that might cause poor performance or product malfunction. d) Refrigeration system does not leak. e) Drainage system is unimpeded and draining to a safe location.
