User manual TOSHIBA RAS-M14EKCVP-E SERVICE MANUAL

[. . . ] A04-015 SERVICE MANUAL AIR-CONDITIONER SPLIT TYPE RAS-B10EKVP-E/RAS-B13EKVP-E/ RAS-M14EAV-E RAS-M10EKCVP-E/RAS-M13EKCVP-E/ RAS-M14EACV-E RAS-B10EKVP-E/RAS-B13EKVP-E/ RAS-B16EKVP-E/RAS-M18EAV-E RAS-M10EKCVP-E/RAS-M13EKCVP-E/ RAS-M16EKCVP-E/RAS-M18EACV-E CONTENTS 1. SAFETY PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] The outdoor unit should not be installed with one indoor unit only. Be sure the (outdoor) unit is installed with at least two indoor units. 10 m or less Precautions for Adding Refrigerant · Use a scale having a precision with at least 10 g per index line when adding the refrigerant. Do not use a bathroom scale or similar instrument. · Use liquid refrigerant when refilling the refrigerant. Since the refrigerant is in liquid form, it can fill quickly. Therefore, perform the filling operation carefully and insert the refrigerant gradually. ­ 70 ­ CAUTION 1. Install the outdoor unit without anything blocking the discharging air. When the outdoor unit is installed in a place always exposed to strong winds like on the coast or on a high story of a building, secure the normal fan operation using a duct or a wind shield. Especially in windy areas, install the unit to prevent the admission of wind. Installation in the following places may result in trouble. · A saline-place such as the coast. · A place where high-frequency waves are likely to be generated, such as from audio equipment, welders, and medical equipment. Strong wind Draining the water · Holes are provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained off efficiently. If a centralized drain is required when installing the unit on a balcony or wall, follow the steps below to drain off the water. Proceed with water-proofing by installing the water-proof rubber caps d in the 2 elongated holes on the base plate of the outdoor unit. [How to install the water-proof rubber caps] 1) Place four fingers into each cap, and insert the caps into the water drain holes by pushing them into place from the underside of the base plate. 2) Press down on the outer circumferences of the caps to ensure that they have been inserted tightly. (Water leaks may result if the caps have not been inserted properly, if their outer circumferences lift up or the caps catch on or wedge against something. ) 2. Install the drain nipple c and a commercially available drain hose (with 16 mm inside diameter), and drain off the water. (For the position where the drain nipple c is installed, refer to the installation diagram of the indoor and outdoor units. ) · Check that the outdoor unit is horizontal, and route the drain hose at a downward sloped angle while ensuring that it is connected tautly. d Water-proof rubber caps (supplied with the outdoor unit) Base plate c Drain nipple Base plate c Drain nipple Commercially available drain hose Do not use ordinary garden hose, which can flatten and prevent water from draining. ­ 71 ­ 10-5-2. Refrigerant Piping Connection Flaring 1. Cut the pipe with a pipe cutter. Obliquity Roughness Warp 2. Insert a flare nut into the pipe, and flare the pipe. · Projection margin in flaring: A (Unit: mm) Rigid (Clutch type) Outer diameter of copper pipe 6. 35 9. 52 12. 7 R410A tool used 0 to 0. 5 0 to 0. 5 0 to 0. 5 Imperial (Wing nut type) Outer diameter of copper pipe 6. 35 9. 52 12. 7 Conventional tool used 1. 0 to 1. 5 1. 0 to 1. 5 1. 0 to 1. 5 Die Pipe R410A 1. 5 to 2. 0 1. 5 to 2. 0 2. 0 to 2. 5 3. Flaring size : B (Unit : mm) Outer diameter of copper pipe B +0 ­0. 4 R410A R22 6. 35 9. 1 9. 0 9. 52 13. 2 13. 0 12. 7 16. 6 16. 2 · In case of flaring for R410A with the conventional flare tool, pull it out approx. [. . . ] Drill a hole on the side cabinet (R) for fixing the thermostat fixing plate. 2-2 PVC tube 9. 1 P-shape clamp Heating part Enlarged marked part Added hole 2-5 5 46 7 Ø5 hole at two positions When drilling a hole on the side cabinet (R), be sure not to damage the cabinet. 2-3 Side cabinet (R) Appendix-6 Appendix No. Photo / Explanatory diagram Side cabinet (L) Procedure Rework the side cabinet (L) to remove part of it. The area to be removed is indicated by the shaded lines in the left figure. After removing part of the side cabinet (L), deburr the edges of the side cabinet (L). 2-4 10 5 Delete Perform end process and bundling of each cable. Close-end connector insulation tape Thermostat Power cord Using fixing screws (Self-tapping screw type-B Ø3. 5 × 6mm), fix the thermostat to the thermostat fixing plate. [. . . ]