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FILE NO. SVM-06012 2. CONST RUCTION VIEWS 2-1. Indoor Unit Front panel 208 1093 Knock out system Grille air inlet Back body 200 Min 1093 For stud bolt Installation plate (Ø8 – Ø10) 1015 742 For stud bolt (Ø6) 450 Mount plate 20 20 M10 Suspention bolt 57 18 Wireless remote control Knock out system UNDER CEILING & CONSOLE INSTALLATION – 3 – Ø74 165 330 460 633 70 Min 633 160
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FILE NO. SVM-06012 3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM 3-1. RAV-SM562XT-E / RAV-SM802XT-E Indoor unit TCJ sensor Air heat exchanger TC sensor Refrigerant pipe Refrigerant pipe Outer diameter of refrigerant pipe Model at liquid side at gas side Outer dia. ∅B Outer dia. ∅A RAV-SM Gas side ÆA Liquid side ÆB 12.7 mm 6.4 mm 562XT-E Max 802XT-E 15.9 mm 9.5 mm 30m Packed valve Packed valve Outer dia. ∅B Outer dia. ∅A Outdoor unit Note : This Service Mamual describes explanation for the Und
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FILE NO. SVM-06012 4. WIRING DIAGRAM Indoor Unit HEAT EXCHANGER SWITCH PCB SENSOR MCC-1428B (TCJ) CN101 1 2 3 FOR FLOAT SWITCH 1 2 (OPTION) When you use float 1 2 switch you should cut J401 1 2 3 CN100 CN402 CN05 1 2 3 1 2 1 2 CN03 THERMO BLK J401 2 2 SENSOR WHI 10 10 10 10 BLK (TA) 1 1 BLU POWER 9 9 9 9 DC12V BLU BLK SUPPLY IC03 HEAT 8 8 8 8 2 2 4 DC5V BLU CIRCUIT BLK EXCHANGER 7 7 7 7 1 1 BLU SENSOR 6 6 6 6 CN01 BLU C02 (TC) 1 R506 5 5 5 5 BLU 4 4 4 4 DB01 BLU 3 3 3 3 BLU 2 2 2 2 CR502 BLU C
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FILE NO. SVM-06012 5. SPECIFICATION OF ELECTRICAL PARTS Indoor Unit No. Parts name Type Specifications 1 Fan motor (for indoor) AFP-220-50-4A Output (Rated) 50 W, 220 – 240 V 2 Grille motor MP35EA DC 12 V 3 Thermo. sensor (TA-sensor) 550 mm 10 kΩ at 25°C 4 Heat exchanger sensor (TC-sensor) ∅6 mm, 500 mm 10 kΩ at 25°C 5 Heat exchanger sensor (TCJ-sensor) ∅6 mm, 500 mm 10 kΩ at 25°C – 6 –
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FILE NO. SVM-06012 6. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC (5) After completion of installation work, check to (R410A) which does not damage the ozone layer. make sure that there is no refrigeration gas leakage. The working pressure of the new refrigerant R410A is If the refrigerant gas leaks into the room, coming 1.6 times higher than conventional refrigerant (R22). into contact with fire in the fan-driven heater, The refrigerating oil is also changed in accorda
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FILE NO. SVM-06012 Table 6-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R410A R22 1/4 6.35 0.80 0.80 3/8 9.52 0.80 0.80 1/2 12.70 0.80 0.80 5/8 15.88 1.00 1.00 (2) Joints b) Socket joints For copper pipes, flare joints or socket joints are Socket joints are such that they are brazed for used. Prior to use, be sure to remove all connections, and used mainly for thick pipings contaminants. whose diameter is larger than 20 mm. Thicknesses of socket jo
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FILE NO. SVM-06012 Table 6-2-3 Dimensions related to flare processing for R410A A (mm) Outer Nominal Thickness diameter Conventional flare tool Flare tool for R410A diameter (mm) (mm) clutch type Clutch type Wing nut type 1/4 6.35 0.8 0 to 0.5 1.0 to 1.5 1.5 to 2.0 3/8 9.52 0.8 0 to 0.5 1.0 to 1.5 1.5 to 2.0 1/2 12.70 0.8 0 to 0.5 1.0 to 1.5 2.0 to 2.5 5/8 15.88 1.0 0 to 0.5 1.0 to 1.5 2.0 to 2.5 Table 6-2-4 Dimensions related to flare processing for R22 A (mm) Outer Nominal Thickness diameter C
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43° to 45° FILE NO. SVM-06012 Fig. 6-2-2 Relations between flare nut and flare seal surface (2) Flare connecting procedures and precautions When it is strong, the flare nut may crack and a) Make sure that the flare and union portions do may be made non-removable. When choosing not have any scar or dust, etc. the tightening torque, comply with values designated by manufacturers. Table 6-2-7 b) Correctly align the processed flare surface with shows reference values. the union axis. Note: c) Tighte
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FILE NO. SVM-06012 6-3. Tools 6-3-1. Required tools The service port diameter of packed valve of the outdoor unit in the air conditioner using R410A is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For ∅12.70 copper pipe) of the refrigerant piping are lengthened. The used refrigerating oil is changed, and mixing of oil may cause a trouble such as generation of sludge, clogging of
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FILE NO. SVM-06012 6-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment. When the compound gauge’s pointer has indi- cated -0.1 Mpa (-76 cmHg), place the handle Low in the fully closed position, and turn off the Connect the charge hose to packed valve service vacuum pump’s power switch. port at the outdoor unit’s gas s
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FILE NO. SVM-06012 1 Be sure to make setting so that liquid can be charged. 2 When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down. It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon. [Cylinder with siphon] [Cylinder with si
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FILE NO. SVM-06012 (2) Characteristics required for flux 6-5-3. Brazing • Activated temperature of flux coincides with the As brazing work requires sophisticated techniques, brazing temperature. experiences based upon a theoretical knowledge, it • Due to a wide effective temperature range, flux must be performed by a person qualified. is hard to carbonize. In order to prevent the oxide film from occurring in the • It is easy to remove slag after brazing. pipe interior during brazing, it is effec
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FILE NO. SVM-06012 7. CONTROL BLOCK DIAGRAM Indoor Unit Control Panel M.C.U. 8 MHz Heat Exchanger Sensor (TCJ) Hi POWER Functions Display • Louver Control Heat Exchanger Sensor (TC) FILTER Sign • 3-minute Delay at Restart for Compressor Display Temperature Sensor • Motor Revolution Control PRE DEF. Infrared Rays Signal Receiver Sign Display • Processing (Temperature Processing) TIMER Initiallizing Circuit Display Infrared • Timer Rays OPERATION Clock Frequence Display Oscillator Circuit 36.7 kHz
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FILE NO. SVM-06012 8. OPERATION DESCRIPTION 8-1. When power supply is reset 8-3. Air volume control (1) Distinction of outdoor units (1) Operation with [HIGH (H)], [MED (M)], [LOW (L)], When the power supply is reset, the outdoors are or [AUTO] mode is performed by the command distinguished, and control is exchanged according from the remote control. to the distinguished result. (2) When [FAN] button is set to AUTO, the indoor fan (2) Setting of the indoor fan speed motor operates as shown in Fi
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FILE NO. SVM-06012 8-4. Cool air discharge preventive control In heating operation, the indoor heat exchanger °C Preset restricts revolving speed of the fan motor to prevent a 0 L −0.5 temp. cold draft. The upper limit of the revolving speed is −1 *1 shown in Fig. 8-4-1 and Table 8-4-1. −1.5 *2 −2 Manual + (One of M AUTO 46 34 5 steps) 45 33 −5.0 −5.5 *4 L−H H 33 21 [FAN AUTO] (Up to 32 20 setting 3 speed) SUL* NOTE : *2 A+4 A+4 SUL*1 *1, *2 : The values marked with *1 and *2 are A−8A−
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FILE NO. SVM-06012 8-5. Freeze preventive control (Low 8-7. Louver control temperature release) (1) Vertical air flow louver Position of veritcal air flow louver is automatically The cooling operation (including Dry operation) is controlled according to the operation mode. performed as follows based on the detected Besides, position of vertical air flow louver can be temperature of Tc sensor or Tcj sensor. arbitrarily set by pressing [FIX] button. When [J] zone is detected for T1 minutes (Follo
