APPENDIX B INSTALLATION INSTRUCTIONS CS-KS12NB41 & CZ-18BT1U + CU-KS12NK1A CS-KS18NB4UW & CZ-18BT1U + CU-KS18NKU CS-KS18NB4UW & CZ-18BT1U + CU-KS18NKUA (852-6-4190-574-00-1) A-2
INSTALLATION INSTRUCTIONS Split System Air Conditioner This air conditioner uses the refrigerant R410A. NOTE Contents Page External diameter of service port R410A: 5/16" Model Combinations IMPORTANT! Please Read Before Starting .................................. 2 1. GENERAL .......................................................... 4 1-1. Tools Required for Installation (not supplied) 1-2. Accessories Supplied with Unit 1-3. Optional Copper Tubing Kit 1-4.
IMPORTANT! Please Read Before Starting When Transporting Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers. This air conditioning system meets strict safety and operating standards. As the installer or service person, it is an important part of your job to install or service the system so it operates safely and efficiently.
Others 8VH WKH IODUH PHWKRG IRU FRQQHFWLQJ WXELQJ $SSO\ UHIULJHUDQW OXEULFDQW WR WKH PDWFKLQJ VXUIDFHV RI the flare and union tubes before connecting them, then tighten the nut with a torque wrench for a leakfree connection. CAUTION &KHFN FDUHIXOO\ IRU OHDNV EHIRUH VWDUWLQJ WKH WHVW UXQ 9HQWLODWH DQ\ HQFORVHG DUHDV ZKHQ LQVWDOOLQJ RU WHVWLQJ the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously toxic gas.
1. General This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning. 1-1. Tools Required for Installation (not supplied) 1. Standard screwdriver 6. Sabre saw or key hole saw 2. Phillips head screwdriver 7. Hacksaw 3. Knife or wire stripper 8. Core bits 4. Tape measure 9. Hammer 5. Carpenter’s level 10. Drill 11. 12. 13. 14.
1-5. Additional Materials Required for Installation 1. 2. Refrigeration (armored) tape Insulated staples or clamps for connecting wire (See local codes) Putty Refrigeration lubricant Clamps or saddles to secure refrigerant tubing 3. 4. 5. 2. Installation Site Selection 2-1. Indoor Unit WARNING To prevent abnormal heat generation and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow. AVOID: 3.3 ft.
2-2. Outdoor Unit NO AVOID: Hot air heat sources, exhaust fans, etc. (Fig. 3) damp, humid or uneven locations. Heat source Outdoor unit DO: install in a location where at least two sides are unobstructed, so that the flow of air at the intake port or exhaust port is not blocked, and so that sufficient space is ensured for maintenance to be carried out without trouble. In general the top also must be unobstructed. (Figs. 4a and 4b) Fig.
2-3. Baffle Plate for the Outdoor Unit (Low Ambient Cooling models only) Air intake baffle Wind NOTE It is recommended to use baffle plates for models CU-KS12NK1A and CU-KS18NKUA. The baffle plates are not normally required for the other models. Front When the outdoor unit is installed in a position exposed to strong wind (such as seasonal winds with low air temperature in winter), baffle plates must be installed on the outdoor unit. (Fig.
CU-KS12NK1A (1) Recommended dimensions of the baffle plates Air Intake Baffle Air Discharge Baffle N H A 2(2- 15/64" 6 mm) J 2(2- I J B H C K M 1/4" 6.5 mm) G L 4(4- 1/4" 6.5 mm) Q K P C G I E A G E D F D B F Fig. 5d Fig. 5e For Air Intake Dimensions Model CU-KS12NK1A A B (inch) 21-21/32 25/32 (mm) C D 2-5/32 17-5/16 E F G H I J K N P 13 25/64 19/32 23/64 19/64 17-3/8 550 20 55 440 330 10 15 9 7.
CU-KS18NKUA (1) Recommended dimensions of the baffle plates Air Intake Baffle Air Discharge Baffle H O A 2- 15/64" (2- 6 mm) I J B H C J 3(3- K 1/4" 6.5 mm) 4(4- 1/4" 6.5 mm) G C R L E Q I D A K E G F F D B G Fig. 5f Fig. 5g For Air Intake Dimensions E F G H I J K (inch) 24-13/32 25/32 1-25/32 22-1/4 (mm) Model CU-KS18NKUA A B C D 9-1/4 9-1/4 25/64 25/32 19/32 23-1/8 19/64 620 20 45 565 235 235 10 20 15 587 7.
(3) Installation procedure CU-KS12NK1A 1. Air Intake Baffle 2. Air Discharge Baffle (1) Left side 1. Remove the panels front, side L and R from the unit and drill 4 holes of ø1/4 inch (6.5 mm) at the prescribed positions. 1. Remove the front panel from the unit. 2. Remove the panel side L, and drill 2 holes of ø1/4 inch (6.5 mm) at the prescribed position. 2. Install the windbaffle on the unit using field supply bolts and nuts. 3. Install the windbaffle on the unit using field supply bolts and nuts.
CU-KS18NKUA 1. Air Intake Baffle 2. Air Discharge Baffle (1) Left side 1. Remove the panels front, top, side L and R from the unit and drill 4 holes of ø1/4 inch (6.5 mm) at the prescribed positions. 1. Remove the top panel from the unit. 2. Remove the panel side L, and drill 3 holes of ø1/4 inch (6.5 mm) at the prescribed positions. 2. Install the windbaffle on the unit using field supply bolts and nuts. 3. Install the windbaffle on the unit using field supply bolts and nuts. 3.
3. How to Install the Indoor Unit Hole-in-anchor Hole-in-plug Concrete Insert 3-1. Preparation for Suspending This unit uses a drain pump. Use a carpenter’s level to check that the unit is level. 3-2.
3-4. Installing the Drain Piping (1) Prepare standard hard PVC pipe (locally purchased O.D. 1-1/32" (26 mm)) for the drain and use the supplied hose band to prevent water leaks. (Fig. 6-5) Twist tie (4 vinyl ties, supplied) Drain port Drain hose insulation (supplied) Hard PVC pipe Position to (equivalent to O.D.
3-5. Checking the Drainage After wiring and drain piping are completed, use the following procedure to check that the water will drain smoothly. For this, prepare a bucket and wiping cloth to catch and wipe up spilled water. Water drain Be sure to do the wiring between the units before installing the ceiling panel. (Refer to 3-9. Wiring Instructions for Inter-unit Connections) (1) Turn on the power. (Here, “power” refers to the power supply from the outdoor unit.) (2) Slowly pour approx.
(2) Removing the corner cover and indicator cover a) While lightly pressing the center of the corner cover, pull up the tab for the screw hole. Use the same procedure to remove the indicator cover. (Fig. 6-16) 1 Press Corner cover 2 Pull up Indicator cover Fig. 6-16 3-6-2. Installing the Ceiling Panel Temporary latches (1) Hang the temporary latches on the inside of the ceiling panel to the receptacle on the unit to temporarily attach the ceiling panel in place. (Fig.
3-6-3. Wiring the Ceiling Panel and the Indicator Drain pipe side (1) Remove the 2 screws from the control box cover, then open the cover. Be careful that the cover does not fall. (2) Connect the 5P FLAP wiring connector from the ceiling panel to the connector on the control PCB in the control box. (Fig. 6-21) Control box Refrigerant tube side (3) Connect the 7P IND and 4P RC wiring connector from the indicator to the connectors on the control PCB in the control box. (Fig.
3-6-5. Checking After Installation Check that there are no gaps between the unit and the ceiling panel, or between the ceiling panel and the ceiling surface. Gaps may cause water leakage and condensation. Check that the wiring is securely connected. If it is not securely connected, the auto flap will not operate. In addition, water leakage and condensation may occur. 3-6-6.
Table 4 Cross-Sectional Area (AWG) Model (A)+(B) (A) Power Supply Wiring Length (ft) (B) Power Line Length (ft) (C) Control Line Length (ft) Fuse or Circuit Breaker Capacity (#14) (#12) (#14) CU-KS12NK1A 131 (Max.) 230 (Max.) 65 (Max.) 20A CU-KS18NKU, CU-KS18NKUA 131 (Max.) 230 (Max.) 100 (Max.) 15A # ...
3-9. Wiring Instructions for Inter-unit Connections (1) Remove the 1 screw from the terminal cover, then open the cover. Be careful that the cover does not fall. (2) Remove the 3 screws from the power box cover, then open the cover. Be careful that the cover does not fall. (4) Remove the transparent plastic cover from the 3P terminal plate. (5) While viewing the wiring diagram, connect the inter-unit and power supply line to terminals 1, 2 and 3 on the 3P terminal plate.
For stranded wiring (1) Cut the wire end with a cutting pliers, then strip the insulation to expose the stranded wiring about 3/8" (10 mm) and tightly twist the wire ends. (Figs. 11 and 12) (2) Using a screwdriver, remove the terminal screw(s) on the terminal plate. (3) Using a ring connector fastener or pliers, securely clamp each stripped wire end with a ring connector. (Fig. 11) (4) Place the ring connector wire, and replace and tighten the removed terminal screw using a screwdriver. (Fig.
5. Refrigerant Tubing Deburring After Before 5-1. Use of the Flaring Method Many of the conventional split system air conditioners employ the flaring method to connect refrigerant tubes which run between indoor and outdoor units. In this method, the copper tubes are flared at each end and connected with flare nuts. 5-2. Flaring Procedure with a Flare Tool (1) Cut the copper tube to the required length with a tube cutter. It is recommended to cut approx.
5-4. Connecting Tubing between Indoor and Outdoor Units a) b) Torque wrench Tightly connect the indoor side refrigerant tubing extended from the wall with the outdoor side tubing. (Fig. 21) Spanner Indoor unit To fasten the flare nuts, apply specified torque as: Outdoor unit Table 5 Tube Dia. Nut Fig. 21 Tightening Torque 1/4" (6.35 mm) 21/32" (17 mm) Approx. 120 – 160 lbs·in (140 – 180 kgf·cm) 3/8" (9.52 mm) 7/8" (22 mm) Approx. 300 – 360 lbs·in (340 – 420 kgf·cm) 1/2" (12.
5-6. Taping the Tubes (1) At this time, the 2 refrigerant tubes (and electrical wire if local codes permit) should be taped together with armoring tape. The drain hose may also be included and taped together as 1 bundle with the tubing. (2) Wrap the armoring tape from the bottom of the outdoor unit to the top of the tubing where it enters the wall. As you wrap the tubing, overlap half of each previous tape turn. (Fig. 25) Clamp Insulated tubes (3) Clamp the tubing bundle to wall, using 1 clamp approx.
(4) With the “Lo” knob of the manifold valve open, run the vacuum pump. The operation time for the vacuum pump varies with tubing length and the capacity of the pump. The following table shows the amount of time for evacuation: NOTE To prevent other refrigerants from being mistakenly charged to units which use R410A, the size of the charge port on the service valve is different from the one for other refrigerant types.
How to Test Run the Air Conditioner After turning on the power of the air conditioner, use the remote controller and follow the steps below to conduct the test run. (1) Set the remote controller in Test Run mode. (Fig. 29) a)Press and hold the HIGH POWER button and the 1HR. TIMER button. b)Then press and hold the ACL (Reset) button with a pointed object such as the tip of a pen. After 5 seconds, release the ACL button first.
Basic Functions of the Service Valves The basic functions of the service valves are given in Table 7 below. Table 7 Narrow Tube Service Valve (2-Way) Action Wide Tube Service Valve (3-Way) O-ring CLOSED Valve cap Stem Shipping Fully OPEN Operating and test running the air conditioner Fully OPEN Measuring pressure * and gas charging CLOSED Air purging with * The service port on the wide tube service valve uses a Schrader core valve to access the refrigerant system.
Service Valve Connections a) Temporary connection: Screw in 3 – 5 turns by hand. (Fig. 34) b) To fasten the flare nuts, apply specified torque as Table 8 and Fig. 35. Table 8 Tube Dia. Nut Fig. 34 Tightening Torque 1/4" (6.35 mm) 21/32" (17 mm) Approx. 120 – 160 lbs·in (140 – 180 kgf·cm) 3/8" (9.52 mm) 7/8" (22 mm) Approx. 300 – 360 lbs·in (340 – 420 kgf·cm) 1/2" (12.70 mm) 1-1/32" (26 mm) Approx. 430 – 480 lbs·in (490 – 550 kgf·cm) 5/8" (15.88 mm) 1-5/32" (29 mm) Approx.
8. Address Switch Tab 8-1. Address Setting of the Remote Controller The address can be set in order to prevent interference between remote controllers when 2 indoor units are installed near each other. The address is normally set to “A.” To set a different address, it is necessary to change the address on the second remote controller. NOTE Fig. 37 Once changed, you cannot restore the original address setting of the air conditioner. (1) Switch on the power source.
APPENDIX C Operating Instructions CZ-RD515U (852-6-4181-230-00-1) A-3
Operating Instructions Wired Remote Controller Model No. CZ-RD515U This wired remote controller is designed for both the “COOL/DRY/HEAT Model” and “COOL/DRY Model” indoor unit. Once the wired remote controller is connected, the wireless remote controller cannot be used. Before operating the unit, read these operating instructions thoroughly and keep them for future reference.
FEATURES • Microprocessor Controlled Operation The interior compartment of the remote controller contains several features to facilitate automatic operation, easy logically displayed for easy use. • Air Sweep Control This function moves a flap up and down in the air outlet, directing air in a sweeping motion around the room and providing comfort in every corner. • 24-Hour ON or OFF Timer This timer can be set to automatically turn the unit on or off at any time within a 24 hour period.
INSTALLATION LOCATION We recommend that this wired remote controller be installed properly by qualified installation technicians in accordance with the Installation Instructions provided with the unit. • Do not install this wired remote controller where there are fumes or flammable gases, or in an extremely humid space such as a greenhouse. • Do not install the wired remote controller where excessively high heat-generating objects are placed.
REMOTE CONTROLLER NOTE The descriptions on the AUTO ( “COOL/DRY Model.” ) or HEAT ( ) operation mode are only for the “COOL/DRY/HEAT Model,” and not for the Display Information on the operating conditions is displayed while the remote controller is switched on. If the unit is turned off, only the mode that was set previously is still displayed. Temperature setting buttons (TEMP.) Press the button to increase the set temperature. Press the button to reduce the set temperature.
ON/OFF operation button This button is for turning the air conditioner on and off. MODE selector button Use this button to select AUTO, HEAT, DRY, COOL or FAN mode. (AUTO) : When this setting is selected, the air conditioner calculates the difference between the thermostat setting and the room temperature and automatically switches to the ‘‘COOL’’ or ‘‘HEAT’’ mode as appropriate. (This function is available only for “Single use” of COOL/DRY/ HEAT Model.
REMOTE CONTROLLER (DISPLAY) Displayed when indoor unit sensor is in use Displayed when operating NIGHT SETBACK mode Displayed when setting temperature Displayed when temperature is shown Displayed when setting timer Symbols (1) Operation mode AUTO ..................................... (only for COOL/DRY/HEAT Model) HEAT ...................................... (only for COOL/DRY/HEAT Model) (3) Temperature setting 60 – 86 °F .............................. When set to 80 °F temperature indication .........
OPERATION WITH THE REMOTE CONTROLLER 1. Automatic Operation (only for COOL/DRY/HEAT Model) 2. Manual Operation • Single use This unit automatically switches between cooling operation and heating operation according to the difference between the room temperature and the temperature setting. • Multiple use The air conditioner calculates the difference between the thermostat setting and room temperature, and automatically determines the mode to operate under cooling or heating.
3. Adjusting the Fan Speed A. In Cooling and DRY Mode: ( A. Automatic fan speed Simply set the FAN SPEED selector button to the position. This automatically sets the best fan speed for the room temperature. B.
SETTING THE TIMER 3. How to set the ON time (Example) To start operation at 7:10 am. ON TIME Present time Operation 1. How to set the present time Indication 1. Press the SET button once. The timer indication alone flashes and the previous settime is only displayed. 2. • Press the HH button until The display will change automatically back to show the present time after about 10 sec. AM 7 is displayed. • Press the MM button until 10 is displayed. (Example) To set to 9:10 pm. 3.
USING THE 1-HOUR OFF TIMER 1. 1-Hour OFF Timer This function causes the unit to operate for one hour and then stop, regardless of whether the unit is on or off when this button is pressed. The indicator in the display indicates that this function is operating. Setting procedure: Regardless of whether the unit is operating or stopped, press the 1 HR. TIMER button. appears in the display.
APPENDIX D INSTALLATION INSTRUCTIONS CZ-RD515U (852-6-4190-592-00-0) A-4
INSTALLATION INSTRUCTIONS Wired Remote Controller IMPORTANT In order to install this wired remote controller onto a wall-mounted model, the connection kit (CZ-RC515U or CZ-RC515UA), which must be purchased separately, is required. Once the wired remote controller is connected, the wireless remote controller cannot be used. Parts supplied with the remote controller See Table 1. Remote controller installation guidelines Installation location Mount the remote controller 3.3 to 4.9 ft. (1 to 1.
B. Installing directly onto the wall (1) Insert a flathead screwdriver into the 5 tab locations and disconnect the back plate of the remote controller by lifting up slightly. (Fig. 2-b) The tabs are thin; take care not to chip them. (2) Use tapping screws to directly fasten the remote controller back plate onto the wall. (Fig. 6) (3) Insert the connector into the PCB of the remote controller unit, and wrap the wire harness around the hook. (Fig.
How to wire the remote controller Ceiling panel (1) Turn OFF the power and remove the ceiling panel air-intake grille. (Refer to 3-6-1 Before Installing the Ceiling Panel in the Installation Instructions supplied with the indoor unit.) (2) Remove the 3 power box cover screws and 2 control box cover screws, then remove both covers. At this time, take care not to drop the covers. (Fig.
How to Test Run the Air Conditioner After turning on the power of the air conditioner, use the remote controller and follow the steps below to conduct the test run. (1) Set the remote controller in Test Run mode. (Fig. 9) a)Press and hold the NIGHT SETBACK button and the 1HR. TIMER button. ON/OFF operation button b)Then press and hold the ACL (Reset) button with a pointed object such as the tip of a pen. After 5 seconds, release the ACL button first.
DC1111-0
