1-4. Type of Copper Tube and Insulation Material 1-5. Additional Materials Required for Installation Model No. Indoor Unit Outdoor Unit INSTALLATION SITE SELECTION ....5 2-1. Indoor Unit CS-KS30NKU CU-KS30NKUA 2-2. Outdoor Unit CS-KS36NKU CU-KS36NKUA HOW TO INSTALL THE INDOOR UNIT ... 13 Power Source: 3-1.
IMPORTANT! When Transporting Please Read Before Starting Be careful when picking up and moving the indoor and out- door units. Get a partner to help, and bend your knees when This air conditioning system meets strict safety and operating lifting to reduce strain on your back. Sharp edges or thin alu- standards.
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Others the flare and union tubes before connecting them, CAUTION then tighten the nut with a torque wrench for a leak- free connection. the refrigeration system. Escaped refrigerant gas, on contact with fire or heat, can produce dangerously or re-installation, and while repairing refrigeration parts. toxic gas.
(ft.) (ft.) (ft.) (oz./ft.)* If the outdoor unit is higher CS-KS30NKU 10 to 100 0.43 CS-KS36NKU If the outdoor unit is lower * If total tubing length becomes 100 to 164 ft. (Max.), charge additional refr igerant (R410A) b y 0.43 oz./ft.
2-2. Outdoor Unit Exhaust fan AVOID: Hot air heat sources, exhaust fans, etc. (Fig. 4) Heat source damp, humid or uneven locations. Outdoor unit choose a place as cool as possible. choose a place that is well ventilated. install in a location where at least two sides are unob- structed, so that the flow of air at the intake port or Fig.
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2-2-1. Installing the Unit in an Area with High Winds and in a Snowy Area Countermeasures against snow and wind Fig. 5e 2-2-2. Precautions for Installation in a Snowy Area Fig. 5f Fig. 5g...
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2-2-3. Dimensions of Wind-proof Duct Reference diagram for CU-KS30NKUA, CU-KS36NKUA Air Intake Unit: inch Air Intake Hole for anchor bolt (4-R1/4") / Anchor bolt : 3/8" or M10 discharge discharge 6-11/16" 25-31/32" (4-11/32") 25-3/16" 37-1/32" 11-13/16" 13-3/8" 2-11/16" 21-25/32" (12-9/16") Air discharge discharge discharge...
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Required space around the outdoor unit CAUTION CAUTION CAUTION...
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2-2-4. Dimensions of Snow-proof Duct Reference diagram for CU-KS30NKUA, CU-KS36NKUA Unit: inch 27-5/8" (11-5/8") Air Intake Hole for anchor bolt (4-R1/4") / Anchor bolt: 3/8" or M10 Air discharge (8-15/16") 25-31/32" 4-11/32" 39-1/4" 25-13/32" 27-7/32" (11-15/16") 3/32" 13-3/8" discharge Air Intake Reference diagram for snow-proof duct (locally purchased): STK-BDV80E Unit: inch Unit top, snow-proof duct...
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Reference diagram for snow-proof duct Space requirements for setting CU-KS30NKUA, CU-KS36NKUA with STK-BDV80E [Obstacle to the front of unit] [Obstacle to the rear of unit] Note:...
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[Obstacles to the front and rear of unit] [Installation in front-rear rows]...
3. How to Install the Indoor Unit 3-1. Remove the Rear Panel from the Unit (1) Remove and discard the set screw on the rear panel. (Fig. 6) (2) Press the 2 marks on the frame cover and disengage Set screw only for transportation the stationary tabs from the frame.
(4) Using a sabre saw, key hole saw or hole-cutting drill NOTE attachment, cut a hole in the wall. See Table 4 and Hole should be made at a slight downward slant to the Fig. 10. outdoor side. Table 4 Indoor Outdoor side...
Front panel 3-4. Removing and Installing the Grille Basically, these models can be installed and wired with- out removing the grille. If access to any internal part is needed, follow the steps as given below. How to remove the grille (1) Open the front panel until it is nearly horizontal, grasp the sections near the front panel arms on both sides, Anti-mold filter...
3-5. Shape the Indoor Side Tubing (1) Arrangement of tubing by direction a) Right or left tubing Cut out the corner of the right/left frame with a hacksaw or the like. (Figs. 20 and 21) b) Right-rear or left-rear tubing In this case, the corner of the frame need not be cut.
3-7. Wire Size and Length Regulations on wiring diameter differ from locality to locality. For field wiring requirements, please refer to your local elec- trical codes. Carefully observe these regulations when carrying out the installation. NOTE Refer to the wiring system diagram (Fig. 23) for the meaning of (A), (B), and (C) in Table 5. Refer to your local codes or in the absence of local codes see the National Electric Code: ANSI/NFPA70.
3-8. Wiring Instructions for Inter-unit Connections (1) Insert the inter-unit wiring (according to local codes) into the through-the-wall PVC pipe. Run the wiring toward the indoor side allowing approx. 10" (25 cm) to extend from the wall face. (Fig. 24) (2) Grasp both ends of the front panel, push the arms towards the outside, and remove the front panel by opening it towards the front and pulling it towards...
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Loose wiring may cause the WARNING 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”...
3-9. Mounting (1) To install the indoor unit, mount the indoor unit onto the 3 tabs on the upper part of the rear plate. (2) Hold down the air discharge outlet and press the lower part of the indoor unit until it clicks to securely fasten to the 2 tabs on the lower part of the rear plate.
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Left-side tubing (1) Lead the tubing and drain hose through the wall, allowing sufficient length for connection. Then bend Rear panel the tubing using a tube bender to make the attach- Hole in wall ment. (Fig. 38) (2) Switch the drain hose and drain cap. Switching drain hose and drain cap Bent part Narrow tube...
To unmount indoor unit Press the 2 marks on the lower part of the indoor unit and unlatch the tabs. Then lift the indoor unit and unmount. (Fig. 42) 3-10. Frame Fastening Method (1) Remove the screw cover on the bottom surface. (Fig.
4. How to Install the Outdoor Unit First refer to Section 2. Installation Site Selection. 4-1. Wiring Instructions for the Outdoor Unit Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local elec- trical codes.
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.
5-4. Connecting Tubing between Indoor and Torque wrench Outdoor Units a) Tightly connect the indoor side refrigerant tubing exten- Spanner ded from the wall with the outdoor side tubing. (Fig. 52) Indoor unit b) To fasten the flare nuts, apply specified torque as: Table 6 Outdoor unit Tube Dia.
6. Air Purging Indoor unit Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged completely. pressure in the system rises operating current rises cooling (or heating) efficiency drops Outdoor unit moisture in the air may freeze and block capillary tubing water may lead to corrosion of parts in the refrigerant system...
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(5) With the vacuum pump still running, close the “Lo” knob of the manifold valve. Then stop the vacuum pump. 90 (1/4 turn) Vacuum hose to manifold valve (6) With the hex wrench, turn the valve stem on the nar- Hex wrench row tube service valve counter-clockwise by 90 degrees (1/4 turn) for 10 seconds, and then turn the...
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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. 59a) a) Press and hold the QUIET button and the 1HR.
Basic Functions of the Service Valves The basic functions of the service valves are given in Table 8 below. Table 8 Narrow Tube Service Wide Tube Service Action Valve (2-Way) Valve (3-Way) O-ring Valve cap CLOSED Stem Shipping Fully OPEN Operating and test running the air conditioner...
8. Address Switch 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.
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