User manual TOSHIBA RAS-10JAVP-E SERVICE MANUAL

[. . . ] A02-015 SPLIT TYPE RAS-10JKVP-E RAS-10JAVP-E RAS-13JKVP-E RAS-13JAVP-E PRINTED IN JAPAN, Jun. , 2003 ToMo CONTENTS 1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . REFRIGERANT R410A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONSTRUCTION VIEWS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] When connecting extension drain hose, insulate the connecting part of extension drain hose with shield pipe. Shield pipe Drain hose Inside the room Extension drain hose Fig. 9-3-1 CAUTION Install the drain pipe for proper drainage. Improper drainage can result in water dripping inside the room. This air conditioner has been designed to drain water collected from condensation which forms on the back of the indoor unit, to the drain pan. Therefore, do not locate the power cord and other parts at a height above the drain guide. Wall Drain guide 9-3-2. Refrigerant Piping Connection Flaring 1. Cut the pipe with a pipe cutter. 90° Obliquity Roughness Warp Space for pipes Fig. Insert a flare nut into the pipe, and flare the pipe. · Projection margin in flaring : A (Unit : mm) Rigid (Clutch type) Outer dia. 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 9-3-3. Evacuating After the piping has been connected to the indoor unit, you can perform the air purge together at once. AIR PURGE Evacuate the air in the connecting pipes and in the indoor unit using vacuum pump. Do not use the refrigerant in the outdoor unit. For details, see the manual of vacuum pump. A Imperial (Wing nut type) Outer dia. of copper pipe 6. 35 9. 52 Use a vacuum pump R410A 1. 5 to 2. 0 1. 5 to 2. 0 Die Pipe Fig. 9-3-3 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 Externally threaded side Use a wrench to secure. Flare nut Internally threaded side Use a torque wrench to secure. Fig. 9-3-4 CAUTION · Do not apply excess torque. Otherwise the nut may crack depending on the conditions. of copper pipe Ø6. 35 mm Ø9. 52 mm Tightening torque 14 to 18 (1. 4 to 1. 8 kgf·m) 33 to 42 (3. 3 to 4. 2 kgf·m) Be sure to use a vacuum pump with counter-flow prevention function so that oil inside the pump does not flow back into the air conditioner pipes when the pump stops. (If oil inside the vacuum pump enters into the air conditioner circuit which uses R410A, trouble with the refrigeration system may occur. ) 1. [. . . ] Be sure to set the heating part on the outdoor unit base at the fan room side or near it. (within 20cm from the outdoor unit base) Heating part Enlarged marked part Procedure 2-2 * Be careful that the cord heater does not hit the fan. Fix the cord heater without any loosening or sag. Drill a hole on the back cabinet for fixing the thermostat fixing plate. [. . . ]