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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page a
For Indoor Unit
INSTALLATION INSTRUCTIONS
COOL/DRY/HEAT Model
– Inverter Split System Air Conditioner –
This air conditioner uses the new refrigerant R410A.
Contents
Model Combinations
Page
Combine indoor and outdoor units only as listed
IMPORTANT!
below.
Please Read Before Starting .................................. 2
Indoor Unit Outdoor Unit
1. GENERAL .......................................................... 3
KMHS0772 CMH1972
1-1. Tools Requ
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 2 IMPORTANT! Please Read Before Starting This air conditioning system meets strict safety and operating When Installing… standards. As the installer or service person, it is an important …In a Ceiling or Wall part of your job to install or service the system so it operates Make sure the ceiling/wall is strong enough to hold the safely and efficiently. unit’s weight. It may be necessary to construct a strong For safe installation and trouble-free op
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 3 1. General 6. Sabre saw or key hole saw This booklet briefly outlines where and how to install the 7. Hacksaw air conditioning system. Please read over the entire set 8. Core bits of instructions for the indoor and outdoor units and make 9. Hammer sure all accessory parts listed are with the system before 10. Drill beginning. 11. Tube cutter 1-1. Tools Required for Installation (not supplied) 12. Tube flaring tool 1. Standard screwdriver 13. Torqu
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 4 1-5. Additional Materials Required for Installation 1. Refrigeration (armored) tape 2. Insulated staples or clamps for connecting wire (See local codes) 3. Putty 4. Refrigeration lubricant 5. Clamps or saddles to secure refrigerant tubing Indoor unit 2. Installation Site Selection 2-1. Indoor Unit To prevent abnormal heat generation WARNING and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the D
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 5 Install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for tele- vision, 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 Max. Max. Allowable Total Limit of Limit of Elevation Required Amount Allowable Tubing Length Total Tubing Length Difference of Additiona
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 6 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 disen- gage the stationary tabs from the frame. (Fig. 7) Set screw only for transportation (3) Remove the rear panel. Fig. 6 NOTE Tubing can be extended in 5 directions as shown in Fig. Rear panel 8. Select the direction you need providing the shortest run to th
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 7 (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 side Hole Dia. KMHS0772/0972/1272 KMHS1872/2472 2-9/16" (65 mm) 3-5/32" (80 mm) (5) Measure the thickness of the wall from the inside Fig. 10 edge to the outside edge and cut PVC pipe at a slight angle 1/4" (6 mm) shorter than the
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 8 Grille Air intake grille 3-4. Remove the Grille to Install the Indoor Unit 3-4-1. Indoor unit types (KMHS0772, KMHS0972, KMHS1272) Basically, these models can be installed and wired without removing the grille. If access to any internal part is needed, follow the steps as given below. Fig. 16a Be sure to wear work gloves CAUTION during installation to avoid being cut by the sharp aluminum fins of the heat exchanger. How to remove the grille (1) G
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 9 Grille Air intake grille 3-4-2. Indoor unit types (KMHS1872, KMHS2472) 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 Fig. 16a-1 (1) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling towards you. (Fig. 16a-1) (2) Remove the 3 screws. (Fig. 16b-1) (3) Remove the screw
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 10 3-5. Shape the Indoor Side Tubing (1) Arrangement of tubing by directions Frame a) Right or left tubing Cut out the corner of the right/left frame with a hacksaw or the like. (Figs. 20 and 21) Left tubing outlet b) Right-rear or left-rear tubing In this case, the corner of the frame need not be cut. (2) To mount the indoor unit on the rear panel: Fig. 20 Hang the 2 mounting slots of the unit on the upper tabs of the rear panel. (Fig. 22) Frame 3-
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 11 3-7. Wiring Instructions for Inter-unit Connections Rear Wall (1) Insert the inter-unit wiring (according to local codes) panel into the through-the-wall PVC pipe. Run the wiring Plastic toward the indoor side allowing approx. 10" (25 cm) cover to extend from the wall face. (Fig. 24) (2) Grasp both ends of the air intake grille, and remove Wiring it by opening towards the front and pulling towards you. 10" (3) Remove the screw on the right side c
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 12 Loose wiring may cause the WARNING terminal to overheat or result in unit malfunction. A fire hazard may also exist.There- fore, 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 9/32" the fixing screw of the terminal plate. (7 mm)(ACTUAL STRIP SIZE) SIZE How to connect wiring to the termin
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 13 3-8. Mounting (1) To install the indoor unit, mount the indoor unit onto the 2 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. (Fig. 33) Push NOTE For tubing, choose either the right or left tubing direction Fig. 33 and follow the steps below. This work can be made easi- er by placing p
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 14 Left-side tubing Rear panel (1) Lead the tubing and drain hose through the wall, Hole in wall allowing sufficient length for connection. Then bend the tubing using a tube bender to make the attach- ment. (Fig. 38) Wide tube Bent part (2) Switch the drain hose and drain cap. Narrow tube Fig. 38 Switching drain hose and drain cap (a) Locate the drain hose and the drain cap. (Fig. 39) (b) Remove the screws fastening the drain hose on the right sid
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 15 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) 3-9. Drain Hose a) The drain hose should be slanted downward to the outdoors. (Fig. 43) b) Never form a trap in the course of the hose. c) If the drain hose will run in the room, insulate the hose with insulation* so that chilled condensation will not damage furniture or floors. (Fig. 44) Push *
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 16 4. How to Test Run the Air Conditioner After turning on power to 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 ION button. b) Then press and hold the 1HR TIMER button. c) At the same time, press the ACL (reset) button once. ON/OFF Use a pointed object such as the tip of a pen to press operation ION the ACL button.
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 17 5. Remote Control Unit Installation Position The remote control unit can be operated from either a non-fixed position or a wall-mounted position. To ensure that the air conditioner operates correctly, do not install the remote control unit in the following places: In direct sunlight Behind a curtain or other place where it is covered More than 26' (8 m) away from the air conditioner In the path of the air conditioner’s airstream Where i
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 18 6. Address Switch Tab 6-1. Address Setting of the Remote Control Unit The address can be set in order to prevent interference between remote controllers when two Sanyo 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. Fig. 62 NOTE Once changed, you cannot restore the original address setting of the air conditioner. (1)
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05-351 KMHS0772_indoor 3/16/06 6:46 PM Page 19 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 A/C 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-uni
