Change for life U-MATCH Series Ceiling Cassette Installation Manual Heat Pumps Models Indoor Unit Outdoor Unit UMAT18HP230V1AC UMAT18HP230V1AO UMAT24HP230V1AC UMAT24HP230V1AO UMAT30HP230V1AC UMAT30HP230V1AO UMAT36HP230V1AC UMAT36HP230V1AO UMAT42HP230V1AC UMAT42HP230V1AO UMAT48HP230V1AC UMAT48HP230V1AO Thank you for choosing our commercial air conditioners. Please read this installation manual carefully before operation and retain it for future reference.
Contents 1 Safety Precautions .......................................................................................... 1 2 Outline of the Unit and Main Parts................................................................... 3 3 Preparation for Installation ............................................................................... 4 3.1 Standard Accessory Parts .......................................................................... 4 3.2 Selection of the Installation Location .....................
U-match Series Cassette Type Unit 1 Safety Precautions This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. This mark indicates procedures which, if improperly performed, might lead to the death or serious injury of the user. This mark indicates procedures which, if improperly performed, might possibly result in personal harm to the user, or damage to property.
U-match Series Cassette Type Unit (14). When installing or repairing the system, be sure to keep the refrigerant circuit free from substances other than the specified refrigerant (R410A), such as air. (Any presence of air or other foreign substances in the refrigerant circuit causes an abnormal pressure rise or rupture, resulting in injury.) (15). During vacuum pump operation, stop the compressor before removing the refrigerant piping.
U-match Series Cassette Type Unit 2 Outline of the Unit and Main Parts Indoor 1 2 3 4 1. Drain device 5 6 2. Drain pipe 3. Air Outlet Outdoor 4. Connection pipe Air inlet 5. Wired controller 6. Remote controller 7. Big handle 7 8. Liquid Pipe 8 9. Gas pipe 9 10 Air outlet 11 10. Drain hose 11. Front panel Fig. 2.1 NOTICE The connection pipe, drain pipe, and electrical wiring should be done by a qualified technican.
U-match Series Cassette Type Unit 3 Preparation for Installation 3.1 Standard Parts The standard parts listed below are furnished and should be used as required. Table 3.1 Indoor Unit Accessories No. Name 1 Drain Hose 2 3 Appearance Screw with Washer Washer Q'ty Usage 1 To connect with field supplied drain pipe 4 To secure the hook on the cabinet of the unit. 10 To be used together with the hanger bolt for installing the unit.
U-match Series Cassette Type Unit 3.2 Selection of the Installation Location ① . The outdoor unit must be installed on a mounting pad which can withstand the weight of the unit. Otherwise, the unit may fall off and cause damage. ② . Do not install the unit at a place where combustible gas is stored. ③. Do not install the unit near heat source , steam, or flammable gas. Decide the installation location with the customer as follows: 3.2.
U-match Series Cassette Type Unit 3.2.2 Outdoor Unit ① . The unit should be installed level right to left and front to back. ② . During installation, if the outdoor unit has to be exposed to strong wind, it must be properly secured. If possible, do not install the unit where it will be exposed to direct sunlight. (1). Install the outdoor unit at a place where there's not much dust . (2). Install the outdoor unit where it is convenient to connect with the indoor unit. (3).
U-match Series Cassette Type Unit Table 3.4 Size of Fitting Pipe mm(Inch) Item Model Liquid Gas Max. Pipe Length mm(feet) 6(1/4) 12.7(1/2) Max. Height Drain Hose(Outer Difference between Diameter × wall Indoor Unit and Thickness) Outdoor Unit mm(Inch) mm(feet) UMAT18HP230V1AC UMAT18HP230V1AO 20(66) 15(49) UMAT24HP230V1AC UMAT24HP230V1AO 30(98) 15(49) UMAT30HP230V1AC UMAT30HP230V1AO 30(98) 15(49) UMAT36HP230V1AC UMAT36HP230V1AO 30(98) 15(49) 9.
U-match Series Cassette Type Unit ② . Take 2 pieces of 18 AWG wire for the communication lines between indoor and outdoor unit, with a maximum length of 50m(164feet). Select the appropriate line length as per the actual installation conditions. The communication wire can not be twisted together. For the smaller units (≤30K), it’s recommended to use up to a maximum of 20m (66feet) long communication line. ③.
U-match Series Cassette Type Unit 24~42K: E H F C G B Bottom face of ceiling D A I Table 4.
U-match Series Cassette Type Unit Table 4.3 Item Model UMAT48HP230V1AC Unit: mm(inch) A B C D E F 1040 (41) 910 (35-7/8) 842 (33-1/8) 788 (31) 170 (6-3/4) 290 (11-3/8)) 4.1.2 Installing the Suspension Bolts 60 to 70mm (2-3/8 to 2-3/4inch) (1). Using the installation template, drill holes for bolts (four holes). (Fig. 4.2) (2). Install the bolts to the ceiling at a place strong enough to hold the unit. Mark the bolt positions from the installation template. With a drill, drill four 12.
U-match Series Cassette Type Unit (2). Install the paper template on the unit, and fix the drain hose at the outlet vent. (3). Adjust the unit to the best position. (4). Check if the unit is installed horizontally level in four directions. If not, the water pump and the float switch can't operate normally, and lead to water leakage. (5). Remove the gasket anchor board and tighten the nut remained. (6). Remove the paper template. 4.1.
U-match Series Cassette Type Unit Table 4.
U-match Series Cassette Type Unit Fig. 4.9 4.3.2 Bending Pipes (1). The pipes can be shaped by your hands. Be careful not to break or kink them. Fig.4.10 (2). Do not bend the pipes in an angle more than 90°. (3). When pipes are bent or stretched repeatedly, it may damaged them. Do not bend or stretch pipes more than three times. Pipe Pipe Insulation pipe Cutter Cutt line (4). To avoid damaging pipes during bending, use sharp cutter as shown Fig.4.11 in Fig 4.
U-match Series Cassette Type Unit When connectling flare nuts, smear both inside and outside with refrigeration oil, screw it hand tight and then tighten it with the spanner and torque wrench. Refer to Table 4.5 to check for proper torque(Over tighting will damage the nut and lead to leakage). Examine and test the connection pipe for leaks, and then insulate the connection pipe, as shown in the Fig.4.12. Use the medium-sized insulaton strip to insulate the coupler of the gas pipe.
U-match Series Cassette Type Unit 4.3.4 Connecting the Pipes at the Outdoor Tighten the flare nut of the connection pipe at the outdoor unit valve connector. The tightening method is the same torque method used on the indoor side. 4.3.5 Checking the Pipe Connections for Gas Leaks For both indoor and outdoor unit side, check for gas leaks at connection joints with gas leakage detector. Fig.4.13 4.3.
U-match Series Cassette Type Unit If the outdoor unit is installed higher than the indoor unit (See Fig.4.16) from lower to (1). the upper part. (2). A l l p i p e s a r e b o u n d t o g e t h e r w i t h cable clamps. The drain hose must contain a trap to prevent water from returning to the indoor unit. (3). Restraint all pipes to the wall with attaching clamp. Trap Fig.4.16 4.
U-match Series Cassette Type Unit gauge manifold pipe Low pressure gauge High pressure gauge Gauge manifold kit pipe VAC valve Hose with the valve pin Service port Vacuum pump Fig. 4.17 Note: For 24K above units, it has the service port for both the gas valve and the liquid valve. During evacuation, it is available to connect two hoses of the manifold valve assembly to two service ports to quicken the evacuating speed. 4.4.2 Additional Charge Refrigerant for the pipe length of 7.
U-match Series Cassette Type Unit 4.5 Installation of the Drain Hose 4.5.1 Precautions for Installing Drain Pipe (1). (2). Keep pipe size equal to or greater than that of the unit drain outlet/port size. (3). Improper piping could cause water leaks . Indoor unit drain hose Extended drain hose (commercially available) Insulate drain pipe and connections Insulation tape (optional) Fig.4.19 4.5.2 Installing the Drain Hoses (1).
0~675 mm 0~1000mm(0~39-3/8inch) U-match Series Cassette Type Unit T-joint converging drain pipes Fig.4.20 (4). When the drain hose cannot keep a sufficient gradient for gravity flow, it is necessary to use a riser pipe (field supplied) to create a gradient. (5). If the air flow of indoor unit is high, this might cause negative pressure and result in return suction of outdoor air. Therefore, U-type water trap shall be designed on the drainage side of each indoor unit.(Fig. 4.21) (6).
U-match Series Cassette Type Unit 4.5.3 Precautions When Using a Riser Pipe Type Drain System (1). Make sure that the entire drain pipe is completely insulated to prevent any possible water leakage due to condensation. 1). 2). 1~1.5m (39-3/8~59inch) Drain lift pipe ≤1000mm(39-3/8inch) ≤300mm(11-3/4inch) Fig. 4.27 (2). Make sure the riser pipe is 280mm (11inch) maximum. (3). Stand the riser pipe vertically, and make sure it is not further than 300mm (12inch) from the base of the drain outlet. (4).
U-match Series Cassette Type Unit Drain hose Test hole cover Manual drain hole ( for service only) Test hole Above 100mm(4inch) Plastic water bottle (The length of the pipe should be about 100mm(4inch)) Fig. 4.30 4.6 Panel Installation 4.6.1 Precautions (1). See the figure below for the relationship of the front panel and the connection pipe. The connection pipe should be located corresponding to the marking. Fig. 4.31 (2).
U-match Series Cassette Type Unit the height of the indoor unit. (Fig. 4.33) . Fig. 4.33 (4). Wire the swing louver motor as shown in Fig. 4.34. Connect them to the main body according to the size of terminals Fig. 4.34 4.6.2 Installing the Panel (1). (2). (3). (4). (5). Place the panel at the unit, and latch the hooks beside and opposite the swing flap motor. Latch other two hooks. Tighten four hexagonal screws under the latches about 15mm(5/8inch).
U-match Series Cassette Type Unit Swing Louver motor 5~8mm(1/4~3/8inch) Fig. 4.35 4.7 Electrical Wiring 4.7.1 Wiring Precautions ① . Before obtaining access to electrical terminals, disconnect all electrical power . ② .Before turning on the unit, verify that the voltage is within the 187~252V range(for single phrase unit). ③ . Always use a independent circuit and install a independent outlet to supply power to the air conditioner. ④ .
U-match Series Cassette Type Unit ① . When the air conditioner won't start due to low voltage, please contact a licensed electrician. 4.7.2 Electrical Wiring 10mm(3/8inch) 25mm (15/16inch) (1). For solid core wiring (Fig. 4.36) 1). Cut the wire end with a wire cutter or wire-cutting pliers, then strip the insulation about 25mm (1inch). 2). Using a screwdriver, remove the terminal screw(s) on the terminal board. 3). Using pliers, bend the solid wire to form a loop suitable for the terminal screw. 4).
U-match Series Cassette Type Unit (3). How to fasten connection wire and power wire by cord clamp After passing the connection wire and power wire through the access hole, secure it with the cord clamp.(Fig. 4.38) ① . Before starting work, verify electrical power is disconnected to the indoor and outdoor units. ② . Match the terminal block numbers and connection wire colors with those of the indoor unit . ③ . Incorrect wiring may cause burning of the electric parts. ④ .
U-match Series Cassette Type Unit 18-42K: Communication terminal board 48K: Communication terminal board Power supply terminal board Electric box cover Electric box cover Fig. 4.
U-match Series Cassette Type Unit ① . The fresh air damper and power wires are high-voltage, while the communication wire and wired controller are low-voltage. They should be run separately to avoid electromagnetic interference. ② .High-voltage and low-voltage lines should enter the electrical control box though separate access holes. ③ . Do not bundle the wired controller and the communication wire together, or arrange them in parallel, otherwise improper operation would occur. ④ .
U-match Series Cassette Type Unit 5 Installation of Controllers Refer to the Installation Manual of the controller for more details. 6 Test Running 6.1 Trial Operation and Testing (1). The meaning of error codes as shown below: Table 6.
U-match Series Cassette Type Unit 32 P5 Over-current protection 33 P6 Communication error between main control and drive 34 P7 Drive module sensor error 35 P8 36 P9 Zero-crossing protection 37 PA AC current protection 38 Pc Drive current error 39 Pd Sensor connecting protection 40 PE Temperature drift protection 41 PL Busbar low voltage protection 42 PH Busbar high voltage protection 43 PU Charge loop error 44 PP Input voltage abnormality 45 ee Drive memory chip error
U-match Series Cassette Type Unit 6.2 Working Temperature Range Table 6.2 Indoor Side Outdoor Side Test Condition DB °C(°F) WB °C(°F) DB °C(°F) WB °C(°F) Nominal Cooling 26.7(80.0) 19.4(67.0) 35.0(95.0) 23.9(75.0) Nominal Heating 21.1(70.0) 15.6(60.0) 8.33(47.0) 6.11(43.0) Rated Cooling 26.7(80.0) 19.4(67.0) 46.1(115.0) 23.9(75.0) Low Temp. Cooling 19.4(67.0) 13.9(57.0) -18.0(0) − Rated Heating 26.7(80.0) − 23.9(75.0) 18.3(65.0) Low Temp. Heating 20.0(68.0) − -18.
U-match Series Cassette Type Unit ① . The air filter is dirty or blocked. ② . There are heat sources or too many people inside the room. ③ . The door or window is open. Poor cooling effect. ④ . There is obstacle at air inlet or air outlet. ⑤ . The set temperature is too high. ⑥ . There is refrigerant leakage. ⑦ . The performance of room temperature sensor becomes worse ① . The air filter is dirty or blocked. ② . The door or window is not firmly closed. Poor heating effect ③ .
U-match Series Cassette Type Unit How to clean the air filter 1. Open the air inlet grille (1). How to open the panel grille of the 24/42K cassette type unit ① . Push the latch as shown in the figure. Remove the screw ② . Release the screws under clasps by a screwdriver. ③ .Release the fastener and open the panel grille. Push the fastener (2). How to open the panel grille of the 18K/48K\60K cassette type unit ① .
U-match Series Cassette Type Unit Filter screen 4. Disassemble the air purifier Remove the air purifier after removing the fixed screws on it. ( Accessory Only) Filtering element Support Bolt 5. Clean the filter screen Clean the filter screen by a vacuum cleaner or wash it by spraying water. If the oil stain on the filter can not be removed or cleaned up, wash it by warm water dissolved with the detergent. Dry the filter in the shadow. Note: ① .
Cat No: UMATCH-CAS-1OM Version 0.
