Combine indoor and outdoor units only as listed IMPORTANT! below. Please Read Before Starting ........2 Indoor Unit Outdoor Unit GENERAL ............3 MCAF188R5I GRF186R5I 1-1. Tools Required for Installation (not supplied) MCAF248R5I GRF246R5I 1-2. Accessories Supplied with Unit 1-3. Optional Copper Tubing Kit Power Source: 1-4.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 2 IMPORTANT! Please Read Before Starting When Installing… This air conditioning system meets strict safety and operat- ing standards. As the installer or service person, it is an …In a Ceiling or Wall important part of your job to install or service the system so Make sure the ceiling/wall is strong enough to hold the it operates safely and efficiently.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 3 1. General 6. Sabre saw or key hole saw This booklet briefly outlines where and how to install 7. Hacksaw the air conditioning system. Please read over the 8. Core bits entire set of instructions for the indoor and outdoor 9.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 4 1-5. Additional Materials Required for Installation Indoor unit Refrigeration (armored) tape Insulated staples or clamps for connecting wire (See local codes) Putty Refrigeration lubricant Clamps or saddles to secure refrigerant tubing Drain hose 2.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 5 2-2. Outdoor Unit Exhaust fan AVOID: Hot air Heat source heat sources, exhaust fans, etc. (Fig. 4) damp, humid or uneven locations. Outdoor unit position the outdoor unit in a protected location where snow will not blow into it.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM 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 dis- engage the stationary tabs from the frame.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 7 (4) Using a sabre saw, key hole saw or hole-cutting NOTE drill attachment, cut a hole in the wall. See Table 4 Hole should be made at a slight downward slant to the and Fig.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 8 3-4. Remove the Grille to Install the Indoor Unit Air intake grille Grille 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.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 9 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...
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 10 3-7. Recommended Wire Length and Diameter 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 carry- ing out the installation.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 11 3-8. Wiring Instructions for Inter-unit Connections (1) Grasp both ends of the air intake grille, and remove it by opening towards the front and pulling Cover towards you. (2) Remove the screw on the right side cover plate and open the cover.
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06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM 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 correspond- ing terminal, follow the instructions “How to connect wiring to the terminal”...
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 13 3-9. 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.
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06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 14 I Left-side tubing (1) Lead the tubing and drain hose through the wall, Rear panel allowing sufficient length for connection. Then bend the tubing using a tube bender to make the Hole in wall attachment.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM 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) 3-10. Drain Hose a) The drain hose should be slanted downward to the outdoors.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 16 4. How to Install the Outdoor Unit for GRF186 First refer to Section 2. Installation Site Selection. Outdoor unit NOTE The drain hole at the bottom of the outdoor unit was not plugged at the time of factory shipment.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 17 5. Refrigerant Tubing Deburring Before After 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.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 18 5-4. Connecting Tubing between Indoor and Torque wrench Outdoor Units a) Tightly connect the indoor side refrigerant tubing Spanner extended from the wall with the outdoor side tubing. Indoor unit (Fig.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 19 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...
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06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 20 (5) With the vacuum pump still running, close the “Lo” knob of the manifold valve. Then stop the vacuum 90° (1/4 turn) Narrow tube pump. (6) With the hex wrench, turn the valve stem on the Hex wrench narrow tube service valve counter-clockwise by 90 degrees (1/4 turn) for 10 seconds, and then turn the...
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06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 21 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 con- duct the test run. (1) Set the remote controller in Test Run mode.
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 22 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...
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 23 7. 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...
06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 24 8. Address Switch 8-1. Address Setting of the Remote Control Unit The address can be set in order to prevent interfer- ence between remote controllers when two indoor units are installed near each other. The address is nor- mally set to “A.”...
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06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 25 9. Electric Wiring System...
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06-154 MCAF186 - 246R5I ENG 3/15/06 11:04 AM Page 26...
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06-155 MCAF186 - 246R5I FRA 3/15/06 1:45 PM Page 28 R.D. 28 Reyrieux BP 131 - 01601 Trévoux C EDEX France Tel. (33) 04.74.00.92.92 - Fax (33)04.74.00.42.00 http:/ / www.technibel.com...
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