FILE NO. A11-016 SERVICE MANUAL (SPLIT TYPE) OUTDOOR UNIT < DIGITAL INVERTER> RAV-SM1103AT-E1 RAV-SM1403AT-E1 R410A PRINTED IN JAPAN, Jan.
CONTENTS Precaution for Safety ............................................................................................................ 6 New Refrigerant (R410A) .................................................................................................... 11 1. SPECIFICATIONS ........................................................................................................ 13 1-1. Outdoor Unit ..................................................................................................
Original instruction Please read carefully through these instructions that contain important information which complies with the “Machinery” Directive (Directive 2006/42/EC), and ensure that you understand them. Generic Denomination: Air Conditioner Definition of Qualified Installer or Qualified Service Person The air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualified service person.
Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below. Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns, electric shocks and other injuries.
Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. Description Warning indication WARNING WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing. WARNING ELECTRICAL SHOCK HAZARD Disconnect all remote electric power supplies before servicing. WARNING Moving parts.
Precaution for Safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker to the OFF position. Otherwise, electric shocks may result. Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuit breaker to the OFF position.
WARNING The appliance shall be installed in accordance with national wiring regulations. Capacity shortages of the power circuit or an incomplete installation may cause an electric shock or fire. Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heights using a stand of 50 cm or more or to remove the intake grille of the indoor unit to undertake work.
The refrigerant used by this air conditioner is the R410A. Check the used refrigerant name and use tools and materials of the parts which match with it. For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed from one of the former R22. Do not use any refrigerant different from the one specified for complement or replacement.
Once the repair work has been completed, check for refrigerant leaks, and check the insulation resistance and water drainage. Then perform a trial run to check that the air conditioner is running properly. Check after repair After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock or injury may be caused. For a check, turn off the power breaker.
Explanations given to user • If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit breaker to the OFF position, and contact a qualified service person to have the repairs done. Do not set the circuit breaker to the ON position until the repairs are completed. Relocation • Only a qualified installer (∗1) or qualified service person (∗1) is allowed to relocate the air conditioner.
New Refrigerant (R410A) This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer. 1. Safety Caution Concerned to New Refrigerant The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed.
4. Tools 1. Required Tools for R410A Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.
1. SPECIFICATIONS 1-1. Outdoor Unit Model name Outdoor unit RAV- SM1103AT-E1 1 phase 230V (220 – 240V) 50Hz (Power exclusive to outdoor is required.) Power supply Type Hermetic compressor Compressor Motor (kW) Pole Refrigerant charged (kg) 2.5 3.0 4 4 2.8 2.8 Refrigerant control Inter connecting pipe Pulse motor valve Standard length (m) 7.5 7.5 Min. length (m) 5.0 5.0 Max.
1-2. Operation Characteristic Curve • Operation Characteristic Curve RAV-SM1103AT-E1,RAV-SM1403AT-E1 22 22 20 20 RAV-SM1103AT-E RAV-SM1103AT-E1 18 18 16 14 Current (A) Current (A) 14 12 10 12 10 8 8 6 6 • Conditions Indoor : DB27˚C/WB19˚C Outdoor : DB35˚C Air flow : High Pipe length : 7.
2 . CONSTRUCTION VIEWS (EXTERNAL VIEWS) Knockout (For draining) Drain hole (Ø20 × 88 Burring hole) Drain hole (Ø25 Burring hole) 29 90 191 20 Suction Part B 17.5 21 40 26 40 Suction port 21 43 (Long hole pitch for anchor bolt) 70 40 Details of B part Knockout (For draining) 43 Part A 17.5 600 39 47 Discharge port 60 150 40 Details of A part 95 900 Installation bolt hole (Ø12 × 17 U-shape holes) 101 314 Handles (Both sides) Refrigerant pipe connecting port Flare at liquid side : Ø9.
RBC-TWP30E2, RBC-TWP50E2 (Simultaneous Twin) B Inner diameter Ø C Inner diameter Ø D Inner diameter Ø D A A B C D Liquid side 36 14 Ø9.5 Ø6.4 Gas side 43 23 Ø15.9 Ø12.7 Liquid side 34 14 Ø9.5 Ø9.5 Gas side 44 21 Ø15.9 Ø15.
3 . REFRIGERATING CYCLE DIAGRAM RAV-SM1103AT-E1, RAV-SM1403AT-E1 Outer diameter of refrigerant pipe Gas side ØA Liquid side ØB 15.9mm 9.5mm Indoor unit Height difference (m) Outdoor unit at upper side Outdoor unit at lower side 30 30 Distributor (Strainer incorporated) TCJ sensor Strainer Air heat exchanger TC sensor Height difference Refrigerant pipe at gas side Ø15.9 Refrigerant pipe at liquid side Ø9.5 Section shape of heat insulator Min. 5m TS sensor Ball valve Outer dia.
RAV-SM1103AT-E1 Pressure Pipe surface temp. (kg/cm2G) (MPa) Temp *Comp. Pd Ps Pd Ps TD TS TC TL TE Hz Fan In Out Standard 3.44 0.92 35.1 9.4 82 8 10 56 39 47 HIGH 27/19 35/– Cooling Overload 3.73 1.18 38.1 12.0 82 15 17 59 48 42 HIGH 32/24 43/– Low load 1.49 0.70 15.2 7.1 39 8 3 23 22 30 LOW 18/15.5 –5/– Standard 2.80 0.61 28.6 6.2 80 0 46 7 1 48 HIGH 20/– 7/6 Heating Overload 3.43 1.08 35.0 11.
4.
5. SPECIFICATIONS OF ELECTRIC PARTS Part name Type Specifications Compressor DA422A3F-12M Outdoor fan motor WDF-340-A100-1 Output 100W Reactor CH62-2Z-T 6mH, 18.5A 4-way valve coil STF-H01AJ1949A1 AC230V High-pressure SW ACB-4UB83W OFF: 4.15MPa PMV coil UKV-A039 DC12V P.C. board MCC-1630 1Ø AC220V/230V/240V±10%, 50/60HZ Fuse GDT 250V25A AC250V, 25A Fuse 50T (P) 063HF AC250V, 6.3A Fuse SCT3.15A AC250V, 3.
6. REFRIGERANT R410A This air conditioner adopts the new refrigerant HFC (R410A) which does not damage the ozone layer. The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22).
Table 6-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) R410A R22 1/4 6.4 0.80 0.80 3/8 9.5 0.80 0.80 1/2 12.7 0.80 0.80 5/8 15.9 1.00 1.00 1. Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm. In such a case, socket joints can be used.
c) Insertion of Flare Nut d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R410A or conventional flare tool. Flare processing dimensions differ according to the type of flare tool. When using a conventional flare tool, be sure to secure “dimension A” by using a gauge for size adjustment. ØD A Fig.
6˚ to 4 45˚ A B C 43˚ D to 4 5˚ Fig. 6-2-2 Relations between flare nut and flare seal surface 2. Flare Connecting Procedures and Precautions a) Make sure that the flare and union portions do not have any scar or dust, etc. b) Correctly align the processed flare surface with the union axis. c) Tighten the flare with designated torque by means of a torque wrench. The tightening torque for R410A is the same as that for conventional R22.
6-3. Tools 6-3-1. Required Tools Refer to the “4. Tools” 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 power switch.
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.
2. Characteristics required for flux 6-5-3. Brazing • Activated temperature of flux coincides with the brazing temperature. • Due to a wide effective temperature range, flux is hard to carbonize. • It is easy to remove slag after brazing. • The corrosive action to the treated metal and brazing filler is minimum. • It excels in coating performance and is harmless to the human body.
6-6. Instructions for Re-use Piping of R22 or R407C Instruction of Works: The existing R22 and R407C piping can be reused for our digital inverter R410A products installations. NOTE) Confirmation of existence of scratch or dent of the former pipes to be applied and also confirmation of reliability of the pipe strength are conventionally referred to the local site. If the definite conditions can be cleared, it is possible to update the existing R22 and R407C pipes to those for R410A models. 6-6-1.
6-6-5. Final Installation Checks Is there no scratch or dent on the existing pipes? Existing pipe: NO * Use a new pipes. NO Is it possible to operate the existing air conditioner? YES ∗ After the existing air conditioner operated in cooling mode for approx. 30 minutes or longer*, recover the refrigerant. ∗ For cooling the pipes and recovering of oil • Refrigerant recovery: Pump down method Nitrogen gas pressure 0.
6-6-6. Handling of Existing Pipe When using the existing pipe, carefully check it for the following: • Wall thickness (within the specified range) • Scratches and dents • Water, oil, dirt, or dust in the pipe • Flare looseness and leakage from welds • Deterioration of copper pipe and heat insulator Cautions for using existing pipe • Do not reuse the flare to prevent gas leak. Replace it with the supplied flare nut and then process it to a flare.
High-pressure SW connector CN501 (Green) Reactor lead wire (White) P26, P27 Power supply circuit protection fuse F03 (250V, 3.15A, Plastic case) Electrolyte capacitor Fan motor output CN300 (White) Compressor output lead P03, P04, P05 – 31 – Varistor protection fuse F23 (250V, 6.
7-1-2. Outline of Main Controls 1. Pulse Modulating Valve (PMV) control 1) For PMV with 50 to 500 pulses during operation, respectively. 2) In cooling operation, PMV is controlled with the temperature difference between TS sensor and TC sensor. 3) In heating operation, PMV is controlled with the temperature difference between TS sensor and TE sensor. 4) For the temperature difference in items 2) and 3), 1 to 5K is aimed as the target in both cooling and heating operations.
3. Current release control The output frequency and the output voltage are controlled by AC current value detected by T20 on the outdoor P.C. board so that input current of the inverter does not exceed the specified value. Current [A] Frequency down I1 I1 – 0.5 Objective model Hold I1 value [A] Hold Normal operation SM110 SM140 COOL HEAT COOL HEAT 20.4 21.2 21.2 21.2 4.
4-2. Heating fan control 1) An outdoor fan is controlled by TE sensor, TO sensor and operation frequency. (It is controlled with W1 for minimum and the maximum is controlled according to the following table.) 2) At the start time, the fan is fixed for 3 minutes only with the maximum fan tap corresponded to the zone in the following table but it is controlled with TE sensor temperature after then. 3) When a status TE ≥ 24°C continues for 5 minutes, the operation stops.
6. Short intermittent operation preventive control 1) For 3 to 10 minutes after operation start, in some cases, the compressor does not stop to protect the compressor even if receiving the thermostat-OFF signal from indoor. However it is not abnormal status. (The operation continuance differs according to the operation status.) 2) When the operation stops by the remote controller, the operation does not continue. Current release control value (II1) 7.
Start of heating operation 0 10 15 c b a d [min.] TE [˚C] –5 A zone – 10 – 13 B zone – 18 D zone C zone * * From 10 minutes to 15 minutes after a heating operation started, the minimum value of TE is stored in memory as TEO and the minimum temperature of TO as ToO.
8. TROUBLESHOOTING 8-1. Summary of Troubleshooting 1. Before troubleshooting 1) Required tools/instruments • + and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check a) The following operations are normal. 1. Compressor does not operate.
1. Before troubleshooting 1) Required tools/instruments • + and – screwdrivers, spanners, radio cutting pliers, nippers, etc. • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check a) The following operations are normal. 1. Compressor does not operate.
8-2. Troubleshooting 8-2-1. Outline of judgment The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with the following method. Method to judge the erroneous position by flashing indication on the display part of the indoor unit (sensors of the receiving part) The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.
Lamp indication Operation Timer Ready Alternate flash Operation Timer Ready Alternate flash Operation Timer Check code Cause of trouble occurrence ⎫ ⎪ ⎬ ⎪ ⎭ Indoor unit sensor error ⎫ ⎪ ⎪ ⎪ ⎪ ⎪ ⎬ ⎪ ⎪ ⎪ ⎪ ⎪ ⎭ Sensor error of outdoor unit F01 Heat exchanger sensor (TCJ) error F02 Heat exchanger sensor (TC) error P10 Heat exchanger sensor (TA) error F04 Discharge temp. sensor (TD) error F06 Temp. sensor (TE) error F07 Temp. sensor (TL) error F08 Temp. sensor (TO) error F12 Temp.
8-2-3. Monitor Function of Remote Controller Switch Calling of sensor temperature display Each data of the remote controller, indoor unit and outdoor unit can be understood by calling the service monitor mode from the remote controller. 1 2 TEST CL Push + buttons simultaneously for 4 seconds to call the service monitor mode. The service monitor goes on, the master indoor unit No. is displayed at first and then the temperature of CODE No. 00 is displayed. TEMP.
8-2-4.
ALT L (Alter nate): Alternate flashing when there are two flashing LED Central control indication Remote controller 0F 0d 0C 12 11 0b 11 47 F01 F02 F10 F29 P01 P10 P12 P31 67 — 97 — 98 99 L20 — t Block indication n Ready Flash ALT L ALT L By unit with warning No. Representative defective position Detection ALT L Indoor unit Heat e Indoor unit Heat exchanger sensor (TC) error . A) error A C.
Error mode detected by indoor unit Operation of diagnostic function Check code E03 Cause of operation No communication from remote controller (including wireless) and communication adapter Status of air conditioner Judgment and measures Condition Stop Displayed when (Automatic reset) error is detected The serial signal is not output from outdoor unit to indoor unit. • Defective serial sending circuit on E04 Displayed when Stop (Automatic reset) error is detected 1.
Error mode detected by outdoor unit The indoor unit check code has been ramified from 4 series and after. The ramified check code is displayed only when combined with 4-series indoor unit. (Ex. Combination of RAV-SM1404UT-E with RAV-SM1403AT-E1) When the indoor unit is 3 series and before, the conventional check code is displayed. (Ex.
Operation of diagnostic function Check code Indoor unit before 3 series after 4 series H03 H03 P03 P03 Cause of operation Current detection circuit error Status of air conditioner Condition Stop Displayed when error is detected Stop Displayed when error is detected Discharge temp. error ∗ Discharge temp. (TD) over specified value was detected. Judgment and measures 1. Check outdoor P.C. board. (AC current detection circuit) 1. Check refrigerating cycle (Gas leak) 2.
Error mode detected by remote controller or central controller (TCC-LINK) Operation of diagnostic function Check code Cause of operation Status of air conditioner Judgment and measures Condition Power supply error of remote controller, Indoor EEPROM error 1. Check remote controller inter-unit wiring. 2. Check remote controller. 3. Check indoor power wiring. 4. Check indoor P.C. board. 5. Check indoor EEPROM. (including socket insertion) → Automatic address repeating phenomenon generates.
Contents Error Display ∗ When fixations of the errors were overlapped, the latest error is displayed. ∗ When D800 to D804 are slowly flashing or D805 is flashing, push and hold SW800 and SW801 simultaneously for 5 seconds or more. The error display changes to the error which is generated. Check code LED display Wired remote controller Item No.
8-2-5. Diagnostic Procedure for Each Check Code (Outdoor Unit) 1) This section describes the diagnostic method for each check code displayed on the wired remote controller. 2) In some cases, a check code indicates multiple symptoms. In this case, confirm LED display on the outdoor P.C. board to narrow the contents to be confirmed. 3) The check code on the wired remote controller is displayed only when the same error occurred continuously by multiple times while LED of the outdoor P.C.
Check code Outdoor LED display — Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [Indoor/Outdoor communication error] NO Is setting of group address of remote controller correct? Check CODE No. [14]. YES Are inner wiring and indoor/outdoor control wires (1, 2, 3) normal? NO Correct wiring indoor/outdoor control wires NO Correct wiring of connectors and terminal blocks. YES Are wiring of terminal blocks (1, 2, 3) normal? YES Check outdoor P.C. board .
Check code Outdoor LED display [F04] z z z z { Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [Discharge temp. sensor (TD) error] Is CN601 connection normal? Is resistance value of TD sensor normal? NO Correct connector. Sensor error → Replace YES Check outdoor P.C. board . Defect → Replace • There is a possibility that it is one of the following errors. Confirm LED on outdoor P.C. board to judge which error it is. Heat exchanger temp.
Check code Outdoor LED display [F08] z z [Outside air temp. sensor (TO) error] z z Is CN602 connection normal? Is resistance value of TO sensor normal? { Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) NO Correct connector. Sensor error → Replace YES Check outdoor P.C. board. Defect → Replace [F12] z z z { [Suction temp. sensor (TS) error] Is CN604 connection normal? Is resistance value of TS sensor normal? NO Correct connector.
Check code [F31] Outdoor LED display z Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [EEPROM error] z z Check outdoor P.C. board. Defect → Replace { [H01] z z { [Compressor break down] Is power supply voltage normal? AC198 to 264V NO Correct power supply line. YES Is wire connection normal? Compressor lead (P.C. board side, Compressor side), Reactor lead, Power supply lead NO Check wire connection and correct it.
Check code Outdoor LED display [H03] z z { [L10] [Current detection circuit error] Check outdoor P.C. board. Defect → Replace z z z z [Unset model type] : Only when service P.C. board is used [Discharge temp. error] { [P03] Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) z z z z { Cut jumper line according to the explanation sheet packaged with the service P.C. board.
Check code [P04] Outdoor LED display
Check code Outdoor LED display [P04] z Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [Power supply error (Vdc)] → Refer to [P05] column. z { z z [High pressure protective operation] → Refer to [P20] column. { [P05] z z { [P07] z z { [Power supply error (Voltage error)] Is there no down or up of power supply voltage? (AC198 to 264V) YES Confirm electric construction, etc. NO Check outdoor P.C. board.
Check code Outdoor LED display [P19] z z z { Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [4-way valve reversal error] Is operation of 4-way valve normal? (Check pipe temp. and etc. in cooling/heating operation.) NO NO Is power supply to 4-way valve coil normal? Replace coil of 4-way valve. YES YES NO Is power supply to 4-way valve coil in heating? YES Are temperature sensor normal? TE sensor: CN603 TS sensor: CN604 NO Replace TE sensor.
Check code Outdoor LED display [P20] z z { Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [High pressure protective operation] NO Is valve fully opened? Open valve fully. YES Reset the power supply and then perform test run matching to the season. Heating season Heating operation Cooling season Cooling operation Is there no problem on outdoor TL sensor? (Measurement of resistance value) NO YES Replace sensor.
Check code [P22] Outdoor LED display z Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [Fan system error] z { Is there no problem on power supply voltage? (AC 198 to 264V) NO Check wiring construction. Ask repair of power supply.
Check code Outdoor LED display [P26] Check and troubleshooting (Item without special mention Indicates part of outdoor unit.) [Short-circuit of compressor drive element] z { Is there no problem on connection of compressor lead or reactor? (Check referring to Wiring diagram.) NO Correct wiring. YES The same error does not occur in operation without compressor lead. NO Replace outdoor P.C. board. YES Check compressor. (Rear short, etc.
Temperature sensor Temperature – Resistance value characteristic table TA, TC, TCJ, TE, TS, TO sensors TD, TL sensors Representative value Temperature (°C) Representative value Ω) Resistance value (kΩ Temperature (°C) Ω) Resistance value (kΩ (Minimum value) (Standard value) (Maximum value) 0 32.33 33.80 35.30 0 (Minimum value) (Standard value) 10 19.63 20.35 21.09 10 92.76 99.05 20 12.23 12.59 12.95 20 58.61 62.36 66.26 25 9.75 10.00 10.25 25 47.01 49.93 52.97 30 7.
Table Inspection of outdoor unit main parts No. 1 Parts name Compressor (Model : DA422A3F-12M) Checking procedure Measure the resistance value of each winding by using the tester. Red Position Resistance value Red – White White Black White – Black 0.476 Ω Black – Red Under 20°C 2 Outdoor fan motor (Model : WDF-340-A100-1) Measure the resistance value of each winding by using the tester. Red Position Resistance value Red – White White Black White – Black 17.3 ± 1.
9. SETUP AT LOCAL SITE AND OTHERS 9-1. Calling of Error History The error contents in the past can be called. 1 2 3 SET TEST Push + buttons simultaneously for 4 seconds or more to call the service check mode. Service Check goes on, the CODE No. 01 is displayed, and then the content of the latest alarm is displayed. The number and error contents of the indoor unit in which an error occurred are displayed.
Indoor unit power-ON sequence Power ON • The unit without power feed waits entirely → Waiting status is released by system start • Reboot when power is fed on the way Not normal NO 3 minutes elapse Gr construction check YES Normal ∗ Gr normal 1) There is no duplicated indoor unit address. 2) There is no invalid indoor unit address. 3) Individual unit and master/follower units are not intermingled. 4) Only a unit for individual.
9-3. Outdoor Unit Various displays and various operations are enabled by push buttons (service) switches and LED on the outdoor control P.C. board. Service switch (SW800, SW801) operations LED display • 4 patterns are provided for LED display. : ON, : OFF, : Rapid flashing (5 times/second), • In the initial status of LED display, D805 is ON as the right figure.
9-3-2. Various settings on outdoor unit (Existing piping, power save, cooling-only, etc.) (1) Service switch setting Various settings are available by setting service switches. [Operating method] 1) Check LED display is the initial status. If it is not so, set the initial status. 2) Push and hold SW800 for 5 seconds or more and then check D804 flashes slowly. 3) Push SW800 several times and then stop it at the LED display of function item to be set up.
In the case to return the setting to one at shipment from factory When to return the setting to one at shipment from the factory due to reinstallation and so on, the setting can be returned in the following procedure. 1) Check LED display is the initial status. If it is not the initial status, return the setting to the initial status. 2) Push and hold SW800 for 5 seconds or more and then check D804 flashes slowly.
9-3-3. Service support function (LED display, service switch operating method) 1. LED display switching 1-1. Display switching list The displayed contents of LED D800 to D805 on the outdoor P.C. board can be switched by handling the service switches SW800 and SW801. [Operating method] 1) Check LED display is the initial status. If it is not so, set the initial status. 2) Push SW800 several times and then stop it at the point where LED display to be indicated.
1-2. Error display The error which is occurring at present and the latest error (the latest error data including one which is occurring now) can be confirmed by lighting LED D800 to D805 on the outdoor control P.C. board. A. Error display which occurs at present LED display Error name D800 D801 D802 D803 D804 D805 Normal Discharge temp. sensor (TD) error Heat exchanger temp. sensor (TE) error Liquid temp. sensor (TL) error Outside temp. sensor (TO) error Suction temp. sensor (TS) error Heat sink temp.
C. Sensor, current, compressor operation frequency, PMV opening display The values, such as the temperature sensor or the current value, which the controller detects are easily confirmed. * Temperature sensor: TD, TE, TL, TS, TO, TH, TA, TC, TCJ LED display D800 D801 D802 D803 D804 D805 : ON, : OFF, Temp.
2. Special operation for maintenance check (SW800 and SW801 operations) The following special operations for maintenance check can be performed by handling the service switches SW800 and SW801. [Operating method] 1) Check LED display is the initial status. If it is not so, set the initial status. 2) Push and hold SW800 for 5 seconds or more and then check D804 flashes slowly. 3) Push SW800 and then stop it at the LED display of the function item to be set.
9-4. Applicable Control of Outdoor unit The following controls are enabled by connecting the part “Application control kit” (TCB-PCOS1E2) sold separately. (1) Power peak cut control * The capacity of the outdoor unit is saved by the Demand signal from outside and corresponds to the temporary peak cut. * The capacity save is switched to 3 stages, 75%, 50% and operation stop. (2) Night operation (Sound reduction) * Input a timer on the market (Arranged at site).
10. ADDRESS SETUP 10-1. Address Setup Procedure When an outdoor unit and an indoor unit are connected, or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address setup completes with power-ON of the outdoor unit. The operation of the remote controller is not accepted while automatic address works. (Approx.
10-2. Address Setup & Group Control Indoor unit No. : N - n = Outdoor unit line address N (Max. 30) - Indoor unit address n (Max. 64) Group address : 0 = Single (Not group control) 1 = Master unit in group control 2 = Sub unit in group control Master unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/from the remote controllers and sub indoor units. (∗ It has no relation with an indoor unit which communicates serially with the outdoor units.
10-2-2. Automatic Address Example from Unset Address (No miswiring) 1.
10-2-3. Automatic Address Example from Unset Address (No miswiring) 1. Standard (One outdoor unit) 1) Single 2) Twin (1-1) (1-2) 1-2 Master/Header 1-1 Individual 1-1 Sub/Follower (Master/Header) Only turning on source power supply (Automatic completion) 2. Group operation (Multiple outdoor units = Multiple indoor units with serial communication only, without twin) 2-1 Sub/Header 1-1 Sub/Header 3-1 Master/Header 8-1 Sub/Header (Max.
10-3. Remote Controller Wiring • Strip off approx. 9 mm the wire to be connected. • For single system, use non polarity, 2 core wire is used for wiring of the remote controller. (0.5 mm² to 2.0 mm² wires) • For the synchronous twin, triple system, use 2-conre shield wire (Vinyl cord for microphone 0.5 to 2.0 mm²) to conform to the EMC standard.
1 SET 2 3 4 5 6 7 8 9 10 11 CL TEST Push + + buttons simultaneously for 4 seconds or more. ← Line address) (← / buttons, Using the temperature setup set 12 to the CODE No. Using timer time / buttons, set the line address. SET Push button. (OK when display goes on.) ← Indoor unit address) (← / buttons, set 13 to the CODE No. Using the temperature setup Using timer time / buttons, set 1 to the line address. SET Push button. (OK when display goes on.) ← Group address) (← / buttons, set 14 to the CODE No.
2. To know the position of indoor unit body by address • To confirm the unit No. in the group control (Follow to the procedure during operation) (in this procedure, the indoor units in group control stop.) The indoor unit numbers in the group control are successively displayed, and fan, louver, and drain pump of the corresponding indoor unit are turned on. (Follow to the procedure during operation) VENT TEST Push and buttons simultaneously for 4 seconds or more. • Unit No. is displayed.
11. REPLACEMENT OF THE SERVICE P.C. BOARD MCC-1630 1. Removing the P.C. board (1) Turn off the power supply of the outdoor unit and allow at least 3 minute for the capacitor to discharge. Confirm that the light of the LED (D800 to D805) fades away. (2) Remove all the connectors and fast-on terminals connected to the P.C.board. (Remove the connectors and fast-on terminals by pulling the connector body. Do not pull the wire). (3) Remove all the screws which secures the P.C.board.
12. HOW TO EXCHANGE COMPRESSOR 12-1. Exchanging Procedure of Compressor (Outline) START Has refrigerant recovery work been done? NO Open PMV forcedly and then recover refrigerant using a refrigerant recovery unit. YES Turn off the leakage breaker. Remove the defective compressor. Mount a service compressor. Never recover the refrigerant to the outdoor unit. For the refrigerant recovery work during reinstallation of repair work, be sure to use the refrigerant recovery unit.
13. DETACHMENTS RAV-SM1103AT-E1, RAV-SM1403AT-E1 No. Part name Procedure Remarks c Common procedure CAUTION Never forget to put on the gloves at working time, otherwise an injury will be caused by the parts, etc. 1. Detachment 1) Stop operation of the air conditioner, and also turn off switch of the breaker. 2) Remove the front cabinet. (M4 (Hexagon) x 10, 3 pcs.) • After taking off screws, remove the front cabinet by pulling it downward. 3) Remove the cover of the terminal block. (M4 x 8, 2 pcs.
No. Procedure Part name Remarks d Discharge port 1. Detachment cabinet 1) Perform work of item 1 of c. 2) Remove screws (M4 x 8, 3 pcs.) of discharge port cabinet for partition plate. 3) Remove screws (M4 (Hexagon) x 10, 2 pcs.) of discharge port cabinet for the bottom plate. 4) Remove screw (M4 x 8, 1 pc.) of discharge port cabinet for the end plate of the heat exchanger. 5) Remove the screws (M4 x 8, 2pcs) of discharge port cabinet and motor base. 6) Remove screws (M4 (Hexagon) x 10, 2 pcs.
No. Part name f Inverter assembly Procedure Remarks 1) Perform works of 1 of c,1 of d ,and e . 2) Remove the front cover. (M4 x 8, 3 pcs.) 3) Remove the inverter fixing plate. (M4 x 8, 3 pcs.) 4) Remove connectors connected to other parts from P.C. board.
No. Part name g Outdoor unit control P.C. board Procedure Remarks 1) Perform works of 1 of c, 2) of f. 2) Remove the guide. (M4 x 8, 1 pc.) 3) Remove connectors and lead wires which are connected to the other parts from the cycle P.C. board. 1. Connectors (On P.C.
No. Part name h Fan motor Procedure Remarks 1) Perform works of items 1 of c , 1 of d , 2) Remove the flange nut fixing the fan motor and the propeller fan. • Loosen the flange nut by turning clockwise. (To tighten the flange nut, turn it counterclockwise.) 3) Remove the propeller fan. 4) Remove the lead wire from the hook fixing the fan motor lead wires on the motor base. (Three positions) 5) Disconnect the connector for fan motor from the inverter. 6) Remove the fixing screws (4 pcs.
No. Part name i Compressor Procedure Remarks 1) Evacuate refrigerant gas. 2) Perform works of items 1 of c, 1 of d , e and f . 3) Remove screws which fixes the piping panel (Front) and the bottom plate. (M4 (Hexagon) x 10, 2 pcs.) 4) Remove screw of the piping panel (Front) and the piping panel (Rear). (M4 (Hexagon) x 10, 1 pc.) 5) Remove screws fixing the partition plate to the valve support plate.(M4 x 8, 2 pcs.) 6) Remove the valve support plate. (M6 x 4 pcs.
No. Part name j Pulse Modulating Valve (PMV) coil Procedure Remarks 1. Detachment 1) Perform works of items 1 of c and e . 2) Remove the coil from PMV body while pulling it upward. Positioning projection PMV main unit Dent part 2. Attachment 1) Match the positioning extrusion of the coil surely to the concavity of PMV body to fix it. PMV coil k Reactor 1. Detachment 1) Perform works of items of 1 of c and 3) of f. 2) Remove the reactor lead wire from the cord clamp which fixes lead wires.
No. Part name l Fan guard Procedure Remarks 1. Detachment 1) Perform works of items 1 of c and d. 2) Remove the discharge port cabinet, and put it down so that the fan guard side directs downward. Discharge port cabinet Bell mouth Perform work on a corrugated cardboard, cloth, etc. to prevent flaw to the product. Remove two screws 3) Remove screws fixing the bell mouth. (M4 x 8, 2 pcs.) 4) Remove the bell mouth.
14.
Location No. Part No.
Inverter assembly Location No. Part No.
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