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FILE NO.SVM-05053-1
SERVICE MANUAL
HI WALL TYPE (INDOOR UNIT)
RAV-SM562KRT-E
RAV-SM802KRT-E
R410A
Rev. Mar, 2006
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CONTENTS 1. SPECIFICATIONS ................................................................................................ 2 2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ................................................. 4 3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM ......................................... 5 4. WIRING DIAGRAM .............................................................................................. 6 5. SPECIFICATIONS OF ELECTRICAL PARTS ............................................
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1. SPECIFICATIONS 1-1. High-Wall Type (Indoor Unit) Model name RAV-SM562KRT-E RAV-SM802KRT-E Cooling Heating Average Cooling Heating Average Standard capacity (Note 1) (kW) 5.1 5.6 6.7 8 (1.5 – 5.6) (1.5 – 6.3) (2.2 – 8.0) (2.2–9.0) Heating low temp. capacity (Note 1) (kW) 4.9 5.8 Energy consumption effect ratio (Cooling) 2.93 [D] 3.29 [C] 3.11 2.46 [E] 3.00 [D] 3.24 Power supply 1 phase 230V (220 – 240V) 50Hz Running current (A) 8.33–7.63 8.138–7.46 13.15–12.05 12.91–11.84 Electrical Power co
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Operation characteristic curve 14 16 14 12 RAV-SM802KRT-E RAV-SM802KRT-E 12 10 10 8 8 6 6 RAV-SM562KRT-E 4 RAV-SM562KRT-E 4 Conditions • Conditions Indoor : DB27 C/WB19°C Indoor : DB20°C 2 Outdoor : DB35°C Outdoor : DB7 C/WB6°C 2 Air flow : High Air flow : High Pipe length : 7.5m Pipe length : 7.5m 230V 230V 0 0 15 15 020 40 60 70 80 100 020 40 60 80 90 100 Compressor speed (rps) Compressor speed (rps) Capacity variation ratioaccor ding to temperature 1
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Æ65 2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) High-Wall Type RAV-SM562KRT-E/RAV-SM802KRT-E Back body 998 Front panel Air inlet Grille inlet 220 50 51 Air outlet Knock out system Knock out system 75 56 Drain hose (0.54 m) 57 18 Connection pipe (0.39 m) Connection pipe (0.49 m) Wireless remote control (For SM802 : Flare Æ15.88) (Flare Æ6.35) (For SM562 : Flare Æ12.7) 998 763.5 (For stud bolt Æ6) 450 (For stud bolt Æ8 -Æ10) 20 20 Outline of indoor unit Installation 100 100 Plate outline – 4
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3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM 3-1. Hi Wall type RAV-SM562KRT-E/SM802KRT-E Indoor unit TCJ sensor Air heat exchanger Model Outer diameter of refrig erant pipe TC sensor RAV-SM Gas side ØA Liquid side ØB 562KRT-E 12.7 mm 6.4 mm 9.5 mm 802KRT-E 15.9 mm Refrigerant pipe Refrigerant pipe at gas side at liquid side Outer dia. ØA Outer dia. ØB Pd Packed valve Packed valve Ps Outer dia. ØA Outer dia. ØB Outdoor unit NOTE : The refrigerating cycle differs according to the combined out
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4. WIRING DIAGRAM 4-1. Hi Wall type (Indoor unit) RAV-SM562KRT-E/SM802KRT-E HA RED WHI BLK Color 1 2 3 Identification Indoor unit earth screw NOTE BLK : BL
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5. SPECIFICATIONS OF ELECTRICAL PARTS 5-1. Indoor Unit High-Wall Type RAV-SM562KRT-E/RAV-SM802KRT-E No. Parts name Type Specifications 1 Fan motor (for indoor) ICF340-30-X Output (Rated) 30 W, 220–240 V MF-340-30-X 2 Grille motor MP35EA12 3 Thermo. sensor (TA-sensor) 268 mm 10 kW at 25°C 4 Heat exchanger sensor (TC-sensor) Ø6 mm, 400 mm 10 kW at 25°C 5 Heat exchanger sensor (TCJ-sensor) Ø6 mm, 400 mm – 7 –
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6. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC (6) When an air conditioning system charged with a (R410A) which does not damage the ozone layer. large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, The working pressure of the new refrigerant R410A even when refrigerant leaks, its concentration is 1.6 times higher than conventional refrigerant does not exceed the marginal level. (R22). The refrigerating oil is also changed
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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 used. Prior to use, be sure to remove all con- for connections, and used mainly for thick taminants. pipings whose diameter is larger than 20 mm. Thicknesses of socket joints are as sh
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c) Insertion of Flare Nut Flare processing dimensions differ according to the type of flare tool. When using a con- d) Flare Processing ventional flare tool, be sure to secure "dimen- Make certain that a clamp bar and copper sion A" by using a gauge for size adjustment. pipe have been cleaned. ØD By means of the clamp bar, perform the flare A processing correctly. Use either a flare tool for R410A or conven- tional flare tool. Fig. 6-2-1 Flare processing dimensions Table 6-2-3 Dimensions relat
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43 to 45 Table 6-2-6 Flare and flare nut dimensions for R22 Dimension (mm) Nominal Outer diameter Thickness Flare nut width diameter (mm) (mm) (mm) A BCD 1/4 6.35 0.8 9.0 9.2 6.5 13 17 3/8 9.52 0.8 13.0 13.5 9.7 20 22 1/2 12.70 0.8 16.2 16.0 12.9 20 24 5/8 15.88 1.0 19.4 19.0 16.0 23 27 3/4 19.05 1.0 23.3 24.0 19.2 34 36 B A D C 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
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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 Ø12.7 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 capillary, etc. Acc
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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 indicated - 0.1 Mpa (- 76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump's Connect the charge hose to packed valve service power switch. port at the outdoor unit's gas side. Keep the s
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Be sure to make setting so that liquid can be charged. 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 without siphon ] Gauge mani
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(2) Characteristics required for flux 6-5-3. Brazing 1.Activated temperature of flux coincides with As brazing work requires sophisticated techniques, the brazing temperature. experiences based upon a theoretical knowledge, it must be performed by a person qualified. 2.Due to a wide effective temperature range, flux is hard to carbonize. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to 3.It is easy to remove slag after brazing. proceed wit
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7. INDOOR UNIT CONTROL 7-1. Indoor Control Circuit Main (Sub) master remote controller Weekly timer (Wired) Display Display LCD driver LCD LCD Max. 8 units are connectable.*1 CPU Display Function setup Function setup *1 When group and twin combination. LED CPU main remote controller shal be connected Key switch Key switch follower indoor unit CN2 CN1 *2 Weekly timer is not connectable to the DC5V sub remote controller. 2 * DC5V Remote Power Secondary controller Power circuit circui
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INDOOR UNIT CONTROL CIRCUIT (Continued) 7-2. Control Specifications NO. Item Overview of specifications Remarks 1 Control at (1) Identification of outdoor unit The “PREPARING” lamp power-on reset Identifies outdoor unit at power-on reset, and switches control lights during initial setting according to the identification result. (model recognition) after (2) Setting of indoor unit fan speed and adjustment of air flow direction power-on reset. Switches indoor unit fan speed, setting of air flow di
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NO. Item Overview of specifications Remarks 3 Room temperature Heat intake temperature (2) The set temperature for HEAT operation can be corrected by code control No. 06. shift (When unit’s temperature Set data 0246 sensor is used) Correction of set temp. +0°C +2°C +4°C +6°C Factory setting Set data 2 * When use of remote controller sensor is set (with DN32), no correction is performed. 4 Capacity auto (1) Issues instruction of operating frequency to outdoor unit according control to the differe
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INDOOR UNIT CONTROL CIRCUIT (Continued) NO. Item Overview of specifications Remarks 6 Fan speed control (1) A fan speed HH (quick high), H (high), L (low) or AUTO is selected HH>H+>H> according to the instruction from remote controller for FAN mode L+>L>UL operation. (2) Fan speed is switched according to the difference between Ta and Wireless type allows HH, Ts in the AUTO mode. H+, H, L+, L, and AUTO. [Cooling] HH Ta (˚C) A H+ +3.0 HH B +2.5 H (HH) C +2.0 L+ D H+(HH) +1.5 L H(HH) +1.0 L+(H+) E
