APPENDIX C INSTALLATION INSTRUCTIONS CS-MKS9NB4U & CZ-18BT1U CS-MKS12NB4U & CZ-18BT1U CS-KS18NB4UW & CZ-18BT1U (852-6-4190-582-00-0) A-3
For Indoor Unit INSTALLATION INSTRUCTIONS Split System Air Conditioner Contents This air conditioner uses the refrigerant R410A. NOTE Page External diameter of service port R410A: 5/16" Model Combinations Combine indoor and outdoor units only as listed below. 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.
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.
$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 leak-free connection. &OHDQ XS WKH VLWH DIWHU \RX ILQLVK UHPHPEHULQJ WR FKHFN that no metal scraps or bits of wiring have been left inside the unit being serviced.
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.
install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation. install in a sturdy manner to avoid increased operating noise. Table 3 Model Max. Allowable Tubing Length Per Unit (ft.) Max. Allowable Total Tubing Length at Shipment (L1+L2+L3) or (L1+L2+L3+L4) (ft.) Limit of Total Tubing Length (L1+L2+L3) or (L1+L2+L3+L4) (ft.
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.
Twist tie (4 vinyl ties, supplied) 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) 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 3-8. 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. &RQQHFW WKH 3 )/$3 ZLULQJ FRQQHFWRU IURP WKH FHLOLQJ 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.
WARNING Loose wiring may cause the terminal to overheat or result in unit malfunction. A fire hazard may also exist. Therefore, be sure all wiring is tightly connected. When connecting each power wire to the corresponding terminal, follow the instructions “How to connect wiring to the terminal” and fasten the wire securely tight with the fixing screw of the terminal plate. STRIP SIZE How to connect wiring to the terminal 9/32" (7 mm) (ACTUAL SIZE) a) For Indoor Unit Fig.
4. 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. 33) a)Press and hold the HIGH POWER button and the 1HR. TIMER button. E 7KHQ SUHVV DQG KROG WKH $&/ 5HVHW EXWWRQ ZLWK a pointed object such as the tip of a pen.
5. Remote Controller Installation Position The remote controller can be operated from either a non-fixed position or a wall-mounted position.
6. Address Switch Tab 6-1. 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.
7. Connecting a Home Automation Device The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this terminal. 8. Installation Check Sheet The strength of the installation location is sufficient to support the air conditioner weight. The indoor and outdoor units are installed level and vertically. The power and voltage are as specified. Inter-unit cables are securely inserted into the terminal block. Inter-unit cables are securely fixed.
