Installation of U-Match Units Technical Support Department September 21
Contents >> Installation of Cassette Units 01 >> Installation of Duct Units 02 >> Installation of Ceiling and Floor 03 >> Installation of Console 04 >> Special Tips 05
Frequently used Tools Outlook Name Outlook Name Copper pipe cutter Expander Copper pipe bender Pressure gauge Flaring tool Vacuum pump
Frequently used Tools Outlook Name Outlook Name Anemometer Clamp meter Acoustimeter Electric drill Infrared thermometer
Cassette Units Service Space Duct Units Body Installation Compact Cassette Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Slim Cassette Model 18K 24-42K 48-55K A 205 245 287 H >235 >275 >317 Service hole should be more than 640*640 mm
Cassette Units Service Space Duct Units Ceiling & Floor Body Installation Console Drainage Installation Special Tips Pre-settings Panel Installation Suspending the body Insert the expanding hook into the hole and hang in the suspending rod.
Cassette Units Service Space Duct Units Ceiling & Floor Body Installation Console Drainage Installation Special Tips Pre-settings Panel Installation Suspending the body 1. 2. The horizontal level must be within ±1 °. The hanging pole must have screw thread on each end for adjusting the installation position. There should be 2 nuts for lock the position under the hanging hook on the body.
Cassette Units Service Space Duct Units Ceiling & Floor Body Installation Console Drainage Installation Special Tips Pre-settings Panel Installation Normal drainage Gradient more than 1/100 1. There should be supporters for drain pipe every 0.8 to 1 meters. 2. If the gap between supporters is too much, there would be air bags inside the pipe which would make drainage is very difficult. 3. Put the spring clamp on to avoid leakage.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Drain outlet is higher than unit Supporter Lift height H Soft pipe 1. 2. 3. 4. If the main drainage pipe is higher than the outlet on the body, the pipe must be life up. The lift height should be no more than 750mm from the bottom of the drain pan. Add a horizontal pipe which length is no more than 150mm for connect to the main drainage pipe.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Drainage for multi units Special Tips Pre-settings Panel Installation
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Drainage Test 1. Remove the test cover and fill 2000ml water in. 2. Turn on the A/C in cooling mode, check if there is condensate water out. 3. Stop the A/C and wait for 3 minutes, then restart it to check if there is a problem. 4. Continue to fill water inside to the max level, check if the water pump start to work immediately. 5.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Location of switches There are many micro-switches and dial switches on the main PCB of indoor unit and you can find the instructions on wiring diagram.
Cassette Units Service Space Duct Units Ceiling & Floor Body Installation Console Drainage Installation Special Tips Pre-settings Panel Installation Group control address setting S1 & S2: Network address setting switch Micro-switch S1 and dial-switch S2 are for address setting when you want to control this unit by a central controller.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Auto-restart selecting Micro-switch SW3 is for selection of auto-restart function.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Temperature compensation selecting Micro-switch SW6 is for selection of temperature compensation in heating mode. This helps to reduce the real temperature difference between ceiling and floor so that the unit could run properly. If the height of installation is lower, smaller value could be chosen.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Fan control selecting Micro-switch SW2 is for selection of indoor FAN ACTION if room temperature reaches the setponit.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Parameter of anti-cold wind function Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Settings for mode priority in multi connection (9K-24K) Micro-switch SW5 is for setting the priority of working mode when the unit is in multi connection.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Settings for TWIN connection (36K and 48K) Micro-switch SW5 is for setting the master or slave unit when the unit is in twin connection.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Unit size selection (36K and 48K) The indoor PCB is universal designed for whole series units from 36K to 55K. This ENC1 setting will tell the main program what size the unit is. NOTE: Usually there is glue on it because the switch position cannot be changed at random unless you want to use this PCB as a spare part to use in another cassette unit.
Cassette Units Service Space Duct Units Ceiling & Floor Body Installation Console Drainage Installation Special Tips Pre-settings Panel Installation Procedure Remove the grille. Put the corner covers back. Remove the corner covers. 4 Put the grille back. Install the panel. Connect the swing motor and display panel.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Notice The panel must be close to the bottom of the body, or there may be cool air out even condensate water leakage.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Drainage Installation Special Tips Pre-settings Panel Installation Settings for mode priority in multi connection (18K, 24K) Micro-switch SW5 is for setting the priority of working mode when the unit is in multi connection.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Service Space Electrical Box
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Install Suspending rod 1. 2. 3. 4. Capacity (KBtu) 12 18, 24 30, 36, 42, 48, 55 Size of outline dimension mounted hook L M 740 350 960 350 1240 500 Determine the positions of rods according to right dimension chart. Drill 4 holes for the expansion hook regarding the determined positions. Insert the expansion hook and tighten the outer nut. Mount the suspending rod.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Suspending the unit Make the 4 suspender through the 4 hanger of the main body to suspend it. Adjust the hexangular nuts on the four installation hooks evenly, to ensure the balance of the body. Use a leveling instrument to make sure the levelness of the main body is within ±1o.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings If you want to change the air return direction 1. 2. 3. 4. Take off ventilation panel and flange, cut off the staples at side rail. Stick the attached seal sponge as per the indicating place in the picture, and change the mounting positions of air return panel and air return flange. Insert the filter into flange inclined from air return opening, and then push up.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Duct Installation 1. Do not put the connecting duct weight on the indoor unit. 2. When connecting duct, use inflammable canvas tie-in to prevent vibrating. 3. When connecting duct, install in place prone to takedown for maintenance. 4. Select suitable unit corresponding to external duct static pressure and fan curve of the unit. 5.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Console Duct Installation Special Tips Pre-settings Unit size selection (36-60K) The indoor PCB is universal designed for whole series units from 36K to 60K. This ENC1 setting will tell the main program what size the unit is. NOTE: Usually there is glue on it because the switch position cannot be changed at random unless you want to use this PCB as a spare part to use in another unit.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Group control address setting Micro-switch S1 and dial-switch S2 are for address setting when you want to control this unit by a central controller.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Auto-restart selecting Micro-switch SW3 is for selection of auto-restart function.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Temperature compensation selecting Micro-switch SW6 is for selection of temperature compensation in heating mode. This helps to reduce the real temperature difference between ceiling and floor so that the unit could run properly. If the height of installation is lower, smaller value could be chosen.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Parameter of anti-cold wind function Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Settings for TWIN connection (36K-60K) Micro-switch SW5 is for setting the master or slave unit when the unit is in twin connection.
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Set Static Pressure Choose SP1, SP2, SP3 or SP4 of fan speed settings to meet the air volume request according to the fan curves in the service manual and installation manual.
Cassette Units Service Space Duct Units Body Installation Set Static Pressure Ceiling & Floor Duct Installation Console Pre-settings Special Tips
Cassette Units Service Space Duct Units Body Installation Ceiling & Floor Duct Installation Console Special Tips Pre-settings Set Static Pressure Set the airflow to different static pressure requested. Turn off the unit, and then - Press and hold “COPY” button for more than 3 seconds; - Press “∧” and “∨” button to select “SP” - Press “” button to active SP setting, and press “∨” or “∨” button to select “1”, “2”, “3” or “4”. Press “” again to finish setting.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Service Space Keep enough space for maintenance. keep the drainage pipe has a min. decline 1/100.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Install the suspending rods Capacity (Btu/h) 18K, 24K 30K 36-55K D 983 1200 1565 E 220 220 220 Select the position of installation hooks according to the hook holes distance showed in upper picture. Drill four holes of Ø12mm, 45~50mm deep at the selected positions on the ceiling. Then embed the expansible hooks (fittings).
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Pre-settings Suspend the body a. Remove the side board and the grille.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Suspend the body b. Locate the hanging arm on the hanging screw bolt. Prepare the mounting bolts on the unit. c. Put the side panels and grilles back.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Console Wall Mounted Special Tips Pre-settings Install the pendant bolt Capacity (Btu/h) 18K, 24K 30K 36-55K D 983 1200 1565 E 220 220 220 Determine the position of pendant bolt according to the dimensions in above table, and drill 4 holes for them. Then insert the tapping screws into the wall.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Mount the main body Hang the indoor unit by insert the tapping screws into the hanging arms on the main unit. (The bottom of body can touch with floor or suspended, but the body must install vertically.) NOTE: The unit cannot be installed this way if it is customized with a built-in drain pump.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Group control address setting Micro-switch S1 and dial-switch S2 are for address setting when you want to control this unit by a central controller.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Auto-restart selecting Micro-switch SW3 is for selection of auto-restart function.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Fan control selecting (18K-48K) Micro-switch SW2 is for selection of indoor FAN ACTION if room temperature reaches the setponit and the compressor stops. Range: OFF (in 127s), Keep running (No anti-cold wind function).
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Unit size selection (36K-60K) The indoor PCB is universal designed for whole series units from 36K to 55K. This ENC1 setting will tell the main program what size the unit is. NOTE: Usually there is glue on it because the switch position cannot be changed at random unless you want to use this PCB as a spare part to use in another unit.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Fan quantity selecting (36K-60K) Micro-switch SW4 is for selection of quantity of fan motors. Same as size selection switch, this switch is for making the PCB suitable for all series units.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Temperature compensation selecting Micro-switch SW6 is for selection of temperature compensation in heating mode. This helps to reduce the real temperature difference between ceiling and floor so that the unit could run properly. If the unit is on-floor installed, 0 should be chosen.
Cassette Units Service Space Duct Units Ceiling & Floor Ceiling Suspending Wall Mounted Console Special Tips Pre-settings Parameter of anti-cold wind function Micro-switch SW1 is for selection of indoor fan stop temperature (TEL0) when it is in anti-cold wind action in heating mode.
Cassette Units Service Space Duct Units Mount Main Body Ceiling & Floor Console Special Tips Pre-settings Service Space Keep enough space for maintenance. keep the drainage pipe has a min. decline 1/100.
Cassette Units Service Space Duct Units Mount Main Body Ceiling & Floor Console Special Tips Pre-settings Install the mounting hook Determine the position of mounting hooks according to the hook holes distance showed in above picture. Fix the hook with tapping screw into the wall.
Cassette Units Service Space Duct Units Mount Main Body Ceiling & Floor Console Special Tips Pre-settings Mount the body Mount the indoor unit on the hooks. (The bottom of body can touch with floor or suspended, but the body must install vertically.
Cassette Units Service Space Duct Units Mount Main Body Ceiling & Floor Console Special Tips Pre-settings Air outlet selection Take off the panel, you can see the switch which is used for selecting both air outlets or upper air outlet only.
Cassette Units Service Space Duct Units Mount Main Body Ceiling & Floor Console Special Tips Pre-settings Temperature compensation selecting Micro-switch SW6 is for selection of temperature compensation in heating mode. This helps to reduce the real temperature difference between ceiling and floor so that the unit could run properly. If the unit is on-floor installed, 0 should be chosen.
Cassette Units Service Space Duct Units Mount Main Body Ceiling & Floor Console Special Tips Pre-settings Fan control selecting Micro-switch SW103 is for selection of indoor FAN ACTION if room temperature reaches the setponit and the compressor stops. Range: OFF (in 127s), Low Speed, Setting Speed, Termal (runs for 1 minute ever 4-minute stop).
Cassette Units Service Space Duct Units Ceiling & Floor Mount Main Body Console Special Tips Pre-settings Auto-restart selecting Micro-switch SW101 is for selection of lower louver (Reserved for new Console).
Cassette Units Service Space Duct Units Ceiling & Floor Mount Main Body Console Special Tips Pre-settings Auto-restart selecting Micro-switch SW1 is for selection of auto-restart function.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Piping limits R410a Inverter Units Model 12K 18K 24K 36K 48K 60K The length of refrigerant pipe (m) 25 30 50 65 65 65 The max elevation between indoor and outdoor units (m) 10 20 25 30 30 30 Additional refrigerant charge Refrigerant R410A Model (kBtu/h) Liquid Pipe Dimension Unit amount (g/m) Formula 12, 18 Φ6.35 15 (L-7.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Single way communication KJR-12B There is a connection wire with a 5-pin socket to connect with the single-way communication wired controller KJR-12B at the other side of the display board of all indoor units.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Single way communication KJR-12B On cassette unit, you will find it inside the panel with other connectors.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Single way communication KJR-12B On ceiling & floor unit, you will find it inside the left side panel.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Wired Controller Connection Single way communication KJR-12B On duct unit, the KJR-12B is standard.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Single way communication KJR-12B On console unit, you can find it below the display board when the panel and the frame is removed.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Dual-way communication weekly timer KJR-120 Series This wired controller should be connected in to the 4-pin socket CN40 on indoor main PCB.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Group controller CCM03 This wired controller should be connected to XYE ports indoor wiring terminal.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Group controller CCM03 Make all indoor units connected together by connecting XYE ports of all units and set correct net addresses, you can control all the units with one CCM03 controller. X, Y, E X, Y, E Max.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Remote alarm ports (CN33) These 2 ports are dry contacts and there is no power output but a ON/OFF signal. The alarm components and the power supply are prepared by the users or installers.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Remote ON/OFF ports (CN23) Cassette Unit Jumper JR6 (Standard) If the jumper is missing, there will be “CP” error code. Remote ON/OFF switch There are reserved ports for connecting a remote switch to control the unit to run or stop. The switch can be set manually or automatically by a special system such as fire alarm system.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Remote ON/OFF ports (CN23) Duct Unit Jumper J7 (Standard) If the jumper is missing, there will be “CP” error code. Remote ON/OFF switch There are reserved ports for connecting a remote switch to control the unit to run or stop. The switch can be set manually or automatically by a special system such as fire alarm system.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Remote ON/OFF ports (CN23) Ceiling-Floor and Console Short connecting wire (Standard) If the short wire is missing, there will be “CP” error code. Remote ON/OFF switch There are reserved ports for connecting a remote switch to control the unit to run or stop. The switch can be set manually or automatically by a special system such as fire alarm system.
Cassette Units Duct Units Ceiling & Floor Pipe Connection Interconnection Wiring Console Special Tips Wired Controller Connection Dry Contacts Ports for Ventilation Fan (CN43) There is a 220V-240V power supply from these 2 ports. If the input power of ventilation motor is lower than 200W, it can be connected to these ports directly. If the input power of the ventilation motor is more than 200W, a contactor should be installed to control the motor.
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