User manual TOSHIBA RAS-16NKV-A SERVICE MANUAL

[. . . ] SVM-05027 SERVICE MANUAL AIR CONDITIONER SPLIT WALL TYPE RAS-13NKV-E / RAS-13NAV-E RAS-13NKV-A / RAS-13NAV-A RAS-16NKV-E / RAS-16NAV-E RAS-16NKV-A / RAS-16NAV-A May, 2005 FILE NO. SPECIFICATIONS 1-1 1-2 1-3 Specifications Operation Characteristic Curve Capacity Variation Ratio According to Temperature Safety During Installation/Servicing Refrigerant Piping Installation Tools Recharging of Refrigerant Brazing of Pipes Indoor Unit Outdoor Unit Indoor Unit (For 13NKV) Indoor Unit (For 16NKV) Outdoor Unit Indoor Unit (For 13NKV) Indoor Unit (For 16NKV) Outdoor Unit (For 13NAV) Outdoor Unit (For 16NAV) Refrigerant Cycle Diagram Operation Data Indoor Unit Outdoor Unit (Inverter Assembly) Outlined of Air Conditioner Control Description of Operation Circuit Temporary Operation Auto Restart Function Filter Check Lamp Remote Control and its Functions Safety Cautions Indoor Unit Outdoor Unit 2. REFRIGERANT R410A 2-1 2-2 2-3 2-4. 2-5. 3. CONSTRUCTION VIEWS 3-1 3-2 4. WIRING DIAGRAM 4-1 4-2 4-3 5. SPECIFICATION OF ELECTRICAL PARTS 5-1 5-2 5-3 5-4 6. REFRIGERANT CYCLE DIAGRAM 6-1 6-2 7. CONTROL BLOCK DIAGRAM 7-1 7-2 8. OPERATION DESCRIPTION 8-1 8-2 8-3 8-4 8-5 8-6 9. INSTALLATION PROCEDURE 9-1 9-2 9-3 - 1- FILE NO. HOW TO DIAGNOSE THE TROUBLE 10-1 10-2 10-3 10-4 10-5 10-6 10-7 10-8 10-9 First Confirmation Primary Judgment Judgment by Flashing LED of Indoor Unit Self-Diagnosis by Remote Control (Check Code) Judgment of Trouble by Every Symptom Check Code 1C (Miswiring in indoor/outdoor units) and 1E How to Diagnose Trouble in Outdoor Unit How to Check Simply the Main Parts How to Simply Judge Whether Outdoor Fan Motor is Good or Bad 11. [. . . ] (1/2 UNF 20 threads per inch) In order to increase the pressure resisting strength of the refrigerant piping, flare processing diameter and size of opposite side of flare nuts has been changed. (for copper pipes with nominal dimensions 1/2 and 5/8) New tools for R410A New tools for R410A Gauge manifold Applicable to R22 model Changes As pressure is high, it is impossible to measure by means of conventional gauge. In order to prevent any other refrigerant from being charged, each port diameter has been changed. In order to increase pressure resisting strength, hose materials and port size have been changed (to 1/2 UNF 20 threads per inch). As pressure is hight and gasification speed is fast, it is difficult to read the indicated value by means of charging cylinder, as air bubbles occur. Incidentally, a common wrench is used for nominal diameters 1/4 and 3/8. By increasing the clamp bar's receiving hole, strength of spring in the tool has been improved. -- Charge hose Electronic balance for refrigerant charging Torque wrench (nominal diam. 1/2, 5/8) Flare tool (clutch type) Gauge for projection adjustment Vacuum pump adapter Used when flare is made by using conventional flare tool. It is necessary to use an adapter to prevent vacuum pump oil from flowing back to the charge hose. The charge hose connecting part has two ports-one for conventional refrigerant (7/16 UNF 20 threads per inch) and one for R410A. If the vacuum pump oil (mineral) mixes with R410A a sludge may occur and damage the equipment. Exclusive for HFC refrigerant. Gas leakage detector Incidentally, the "refrigerant cylinder" comes with the refrigerant designation (R410A) and protector coating in the U. Also, the "charge port and packing for refrigerant cylinder" require 1/2 UNF 20 threads per inch corresponding to the charge hose's port size. 47 FILE NO. Cutting a hole and mounting installation plate <Cutting a hole> A place which provides the spaces around the When installing the refrigerant pipes from the rear. A place that allows easy installation of the piping to the outdoor unit. The indoor unit shall be installed as top of the Pipe hole indoor unit comes to at least 2 m height. Also it must be avoided to put anything on the top of 65 mm the indoor unit. CAUTION Direct sunlight to the indoor unit's wireless receiver should be avoided. The microprocessor in the indoor unit should not be too close to RF noise sources. (For details, see the owner's manual. ) <Remote controller> A place where there are no obstacles such as a curtain that may block the signal from the indoor unit. Do not install the remote control in a place exposed to direct sunlight or close to a heating source, such as a stove. Keep the remote control at least 1 m apart from the nearest TV set or stereo equipment. (This is necessary to prevent image disturbances or noise interference. ) The location of the remote control should be determined as shown below. (Side view) (Top view) 5 The center of the pipe hole is above the arrow. 100 mm Fig. [. . . ] Attachment 1) Set take-out part of the lead wire of coil to the coil inserting position of the pulse modulating valve, and attach the coil. 2) Turn the coil by 90 degrees, set surely the concave part at lower part of the coil to the positioning hole of the pulse modulating valve, and then fix the coil. After mounting it, check that coil at B room side (Red marking is marked on the pulse modulating valve. ) is connected to CN13 of the control board assembly. Remarks Take-out part of lead wire Notch Coil inserting position Coil fix position Coil inserting position Positioning hole ! Fan guard 1. 2) Remove the front cabinet, and put it down so that fan guard side directs downward. [. . . ]