User manual TOSHIBA RAS-10GKHP-ES2 SERVICE MANUAL

[. . . ] SVM-06039-2 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS-10GKHP-ES2 / RAS-10GAH-ES2 RAS-10GKP-ES2 / RAS-10GA-ES2 RAS-10GKHP-AS2 / RAS-10GAH-AS2 RAS-10GKP-AS2 / RAS-10GA-AS2 June 2006 FILE NO. SPECIFICATIONS CONSTRUCTION VIEWS 2-1 Indoor Unit 2-2 Outdoor Unit 3. WIRING DIAGRAM 3-1 3-2 3-3 3-4 RAS-10GKHP-ES2 / RAS-10GAH-ES2 RAS-10GKHP-AS2 / RAS-10GAH-AS2 RAS-10GKP-ES2 / RAS-10GA-ES2 RAS-10GKP-AS2 / RAS-10GA-AS2 Indoor Unit (RAS-10GKHP-ES2, RAS-10GKHP-AS2) Outdoor Unit (RAS-10GAH-ES2, RAS-10GAH-AS2) Indoor Unit (RAS-10GKP-ES2, RAS-10GKP-AS2) Outdoor Unit (RAS-10GA-ES2, RAS-10GA-AS2) 4. SPECIFICATION OF ELECTRICAL PARTS 4-1 4-2 4-3 4-4 5. REFRIGERATION CYCLE DIAGRAM 5-1 RAS-10GKHP-ES2 / RAS-10GAH-ES2, RAS-10GAH-ES2 RAS-10GKHP-AS2 / RAS-10GAH-AS2 5-2 RAS-10GKP-ES2 / RAS-10GA-ES2, RAS-10GKP-AS2 / RAS-10GA-AS2 6. CONTROL BLOCK DIAGRAM 6-1 RAS-10GKHP-ES2 / RAS-10GAH-ES2, RAS-10GKHP-AS2 / RAS-10GAH-AS2 6-2 RAS-10GKP-ES2 / RAS-10GA-ES2, RAS-10GKP-AS2 / RAS-10GA-AS2 7. OPERATION DESCRIPTION 7-1 Outline of Air Conditioner Control 7-2 Description of Operation Circuit 7-3 Hi POWER Mode 7-4 High-Temperature Limit Control 7-5 Low-Temperature Limit Control 7-6 Defrost Operation 7-7 Current Limit Control 7-8 Auto Restart Function 7-9 Self-Cleaning function 7-10 QUIET Mode 7-11 COMFORT SLEEP mode -1- FILE NO. INSTALLATION PROCEDURE 8-1 8-2 8-3 8-4 8-5 8-6 8-7 Safety Cautions Installation Diagram of Indoor and Outdoor Units Installation Indoor Unit Outdoor Unit How to Set Remote Control Selector Switch Others Troubleshooting Procedure Basic Check Items Primary Judgement Self-Diagnosis by Remote Control (Check Code) Troubleshooting Flowcharts Troubleshooting for Remote Control (Including The Indoor P. C. Board) 9. TROUBLESHOOTING CHART 9-1 9-2 9-3 9-4 9-5 9-6 10. [. . . ] Put water in the drain pan and make sure that the water is drained out of doors. When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe. Shield pipe CAUTION 1. Install the outdoor unit without anything blocking the air discharging. When the outdoor unit is installed in a place exposed always exposed to strong wind like a coast or on a high storey of a building, secure the normal fan operation using a duct or a wind shield. In particularly windy areas, install the unit such as to avoid 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 as from audio equipment, welders, and medical equipment. Drain hose Inside the room Extension drain hose Fig. 8-4-20 CAUTION Arrange the drain pipe for proper drainage from the unit. Improper drainage can result in dew-dropping. This air conditioner has the structure designed to drain water collected from dew, which forms on the back of the indoor unit, to the drain pan. Therefore, do not store the power cord and other parts at a height above the drain guide. Wall Drain guide Strong wind Space for pipes Fig. Cut the pipe with a pipe cutter. Obliquity Roughness Warp (Unit : N·m) Outer dia. of copper pipe 6. 35 9. 52 Tightening torque 16 to 18 (1. 6 to 1. 8 kgf·m) 30 to 42 (3. 0 to 4. 2 kgf·m) 90° Fig. Insert a flare nut into the pipe, and flare the pipe. · Projection margin in flaring : A (Unit : mm) A · Tightening torque of flare pipe connections The operating pressure of R410A is higher than that of R22. It is therefore necessary to firmly tighten the flare pipe connecting sections (which connect the indoor and outdoor units) up to the specified tightening torque. Incorrect connections may cause not only a gas leakage, but also damage to the refrigerant cycle. Flare at indoor unit side Die Pipe Fig. of copper pipe 6. 35 9. 52 R410A tool used 0 to 0. 5 0 to 0. 5 Conventional tool used 1. 0 to 1. 5 1. 0 to 1. 5 Flare at outdoor unit side Fig. 8-5-4 Imperial (wing nut type, conventional tool) Outer dia. of copper pipe 6. 35 9. 52 <Tightening connection> Align the centers of the connecting pipes and tighten the flare nut as far as possible with your fingers. Then tighten the nut with a spanner and torque wrench as shown in the figure. Half union R410A Mark line 1. 5 to 2. 0 1. 5 to 2. 0 Fig. [. . . ] 3) Remove the 2 screws on the heat exchanger at the base bearing. 4) Remove the screw on the heat exchanger at the fixed plate from the back body and then pull out the right hand side until the socket of heat exchanger released from the hook of the band motor (L), and then pull out the upper side of heat exchanger slowly. 2 Pipe holder 3 2-Screws 4 Screws 5 Cross flow fan 1) Remove the front panel, electrical part, horizontal louver and the heat exchanger following procedure 4. 2) Remove the 2 screws on the band motor (L) and remove the 2 screws on the band motor (R) and then remove the cross flow fan. 3) Loosen the set screw of the cross flow fan then separate the fan and the fan motor. [. . . ]