FILE NO. A10-031 SERVICE MANUAL SPLIT TYPE INDOOR UNIT Compact 4-way Cassette Type RAV-SM404MUT-E RAV-SM454MUT-E RAV-SM564MUT-E Concealed Duct Type RAV-SM564BT-E RAV-SM804BT-E RAV-SM1104BT-E RAV-SM1404BT-E Ceiling Type RAV-SM564CT-E RAV-SM804CT-E RAV-SM1104CT-E RAV-SM1404CT-E RAV-SM404MUT-TR RAV-SM454MUT-TR RAV-SM564MUT-TR RAV-SM564BT-TR RAV-SM804BT-TR RAV-SM1104BT-TR RAV-SM1404BT-TR RAV-SM564CT-TR RAV-SM804CT-TR RAV-SM1104CT-TR RAV-SM1404CT-TR R410A PRINTED IN JAPAN, Apr.
NOTE A direct current motor is adopted for indoor fan motor in the Concealed Duct Standard Type air conditioner. Caused from its characteristics, a current limit works on the direct current motor. When replacing the high-performance filter or when opening the service board, be sure to stop the fan. If an above action is executed during the fan operation, the protective control works to stop the unit operation, and the check code “P12” may be issued. However it is not a trouble.
6. TROUBLESHOOTING .............................................................................. 42 6-1. Summary of Troubleshooting ........................................................................... 42 6-2. Check Code List (Indoor) ................................................................................. 47 6-3. Diagnostic Procedure for Each Check Code (Indoor Unit) ............................ 52 7. REPLACEMENT OF SERVICE P.C. BOARD ........................................... 64 7-1.
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. WARNING Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person (∗1) is allowed to repair the air conditioner.
Execute discharge between terminals. Prohibition Stay on protection Even if the circuit breaker has been set to the OFF position before the service panel is removed and the electrical parts are repaired, you will still risk receiving an electric shock. For this reason, short-circuit the high-voltage capacitor terminals to discharge the voltage before proceeding with the repair work. For details on the short-circuiting procedure, refer to the Service Manual.
Refrigerant Assembly/ Cabling Insulator check Ventilation 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.
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 Do not operate the unit with the valve closed. 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.
Specifications Model RAV-SM404MUT-E RAV-SM454MUT-E RAV-SM564MUT-E RAV-SM404MUT-TR RAV-SM454MUT-TR RAV-SM564MUT-TR RAV-SM564BT-E RAV-SM804BT-E RAV-SM1104BT-E RAV-SM1404BT-E RAV-SM564BT-TR RAV-SM804BT-TR RAV-SM1104BT-TR RAV-SM1404BT-TR RAV-SM564CT-E RAV-SM804CT-E RAV-SM1104CT-E RAV-SM1404CT-E RAV-SM564CT-TR RAV-SM804CT-TR RAV-SM1104CT-TR RAV-SM1404CT-TR Sound power level (dBA) Weight (kg) Cooling Heating Main unit (Ceiling panel) ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗ ∗
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. AIR DUCTING WORK 1-1. Static Pressure Characteristics Concealed Duct type RAV-SN564BT ∗, RAV-SN804BT ∗, RAV-SN1104BT ∗, RAV-SN1404BT ∗ Fig. 1 SM56 type (Round duct) Fig.
Fig. 5 SM110 type (Round duct) Fig.
2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) 2-1. Compact 4-way Cassette Type RAV-SM404MUT∗, RAV-SM454MUT∗, RAV-SM564MUT∗ 1000 or more 595 to 660 Ceiling open dimension 1000 or more 15 or more 595 to 660 Ceiling open dimension Obustacle 15 or more 1000 or more 142 64 368.5 Knockout for flesh air intake Ø100 Electric parts box For branch duct knockout square hole Ø150 320.5 575 Unit external dimension Ø162 Wiring connection port Refrigerant pipe (Liquid) Ø6.
2-2.
2-3. Ceiling Type RAV-SM564CT∗, RAV-SM804CT∗, RAV-SM1104CT∗, RAV-SM1404CT∗ Upper pipe draw-out port (Knockout hole) 210 Power supply cable take-in port (Knockout) 114 130 53 Drain port VP20 (Inner dia.
3. WIRING DIAGRAM 3-1. Indoor Unit 3-1-1.
3-1-2.
3-1-3.
4. SPECIFICATIONS OF ELECTRICAL PARTS 4-1. Compact 4-way Cassette Type Parts name No. 1 Fan motor (for indoor) 2 Thermo. sensor (TA-sensor) 3 Type SWF-230-60-1R Specifications Output (Rated) 60 W, 220–240 V 155 mm 10 kΩ at 25°C Heat exchanger sensor (TCJ-sensor) Ø6 mm, 1200 mm 10 kΩ at 25°C 4 Heat exchanger sensor (TC-sensor) Ø6 mm, 1200 mm 10 kΩ at 25°C 5 Float switch 6 Drain pump motor FS-0218-102 ADP-1409 4-2. Concealed Duct Type No.
5. CONTROL BLOCK DIAGRAM 5-1. Indoor Controller Block Diagram 5-1-1. In Case of Connection of Wired (Simple) Remote Controller Wired (Simple) heder remote controller (Max.
5-1-2. In Case of Connection of Wireless Remote Controller Indoor unit #1 (Heder) Wireless remote controller Receiver P.C. board (MCC-1504) Display LED Receive circuit Function setup SW Buzzer CPU Temporary operation SW DC5V Power circuit Remote controller communication circuit A #2 (Follower) A B #3 (Follower) B A B Indoor control P.C.
5-1-3. Connection of Both Wired (Simple) Remote Controller and Wireless Remote Controller Indoor unit #1 (Heder) Wired (Simple) heder remote controller (Max. 2 units) Wireless remote controller Receiver P.C.
5-2. Control Specifications No. 1 2 Item When power supply is reset Operation mode selection Outline of specifications Remarks 1) Distinction of outdoor unit When the power supply is reset, the outdoors are distinguished and the control is selected according to the distinguished result. 2) Setting of indoor fan speed and existence of air direction adjustment Based on EEPROM data, select setting of the indoor fan speed and the existence of air direction adjustment.
No. 3 Item Room temp. control (Continued) Outline of specifications Remarks 2) Using the CODE No. 06, the setup temperature in heating operation can be corrected. SET DATA 0 2 4 6 Setup temp. correction +0°C +2°C +4°C +6°C Shift of suction temperature in heating operation Setting at shipment 2 SET DATA 4 Automatic capacity control (GA control) 5 Automatic cooling/heating control 1) Based on the difference between Ta and Ts, the operation frequency is instructed to the outdoor unit.
No. 6 Item Fan speed control Outline of specifications Remarks 1) Operation with (HH), (H), (L) or [AUTO] mode is carried out by the command from the remote controller. 2) When the fan speed mode [AUTO] is selected, the fan speed varies by the difference between Ta and Ts. HH > H+ > H > L+ > L > UL Ta ˚C +3.0 +2.5 A HH (HH) B H+ (HH) D C +2.0 +1.5 +1.0 +0.5 Tsc –0.
No. Item 6 Fan speed control (Continued) Remarks Outline of specifications (Ceiling type) CODE No. [5d] SW501 (1)/(2) Tap Standard Type 1 Type 3 Type 6 0000 0001 0002 0003 OFF/OFF ON/OFF OFF/ON ON/ON Selection of high ceiling type CODE No.
No. Item Outline of specifications 8 Freeze preventive control (Low temperature release) 1) The cooling operation (including Dry operation) is performed as follows based on the detected temperature of Tc sensor or Tcj sensor. When [J] zone is detected for 6 minutes (Following figure), the commanded frequency is decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [J] zone.
No. Item Outline of specifications 9 High-temp. release control 1) The heating operation is performed as follows based on the detected temperature of Tc sensor or Tcj sensor. • When [M] zone is detected, the commanded frequency is decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [M] zone. • In [N] zone, the commanded frequency is held.
No. Item Outline of specifications 12 Louver control: Compact 4-way type only 1) Louver position setup • When the louver position is changed, the position moves necessarily to downward discharge position once to return to the set position. • The louver position can be set up in the following operation range. In cooling/dry operation Remarks In heating/fan operation • In group twin/triple operation, the louver positions can be set up collectively or individually.
No. 13 Item (Continued) For ceiling type only Outline of specifications Remarks 1) Louver position setup • When the louver position is changed, the position moves necessarily to downward discharge position once to return to the set position. • The louver position can be set up in the following operation range. In cooling/dry operation In heating/fan operation • In group operation, the louver positions can be set up collectively or individually.
No. Item Outline of specifications Remarks 13 Frequency fixed operation (Test run) 1) When pushing [CHK] button for 4 seconds or more, [TEST] is displayed on the display screen and the mode enters in Test run mode. 2) Push [ON/OFF] button. 3) Using [MODE] button, set the mode to [COOL] or [HEAT]. • Do not use other mode than [COOL]/[HEAT] mode. • During test run operation, the temperature cannot be adjusted. • An error is detected as usual.
No. 13 Item Frequency fixed operation (Test run) (Continued) Remarks Outline of specifications (Ceiling type) Procedure Description Turn on power of the air conditioner. 4 2 3 The operation is not accepted for 5 minutes when power has been turned on at first time after installation, and 1 minute when power has been turned on at the next time and after. After the specified time has passed, perform a test operation.
No. Item Outline of specifications 15 Central control mode selection 1) Setting at the central controller side enables to select the contents which can be operated on the wired remote controller. 2) Setup contents • In case of TCC-LINK Central remote controller (TCB-SC642TLE2) [Individual]: Operated by wired remote controller ([After-push precedence]) [Central 1]: START / STOP operation by wired remote controller is unavailable. [Central 2]: START / STOP, MODE change and TEMP.
No. 18 Item DC motor Remarks Outline of specifications 1) When the fan operation has started, positioning of the stator and the rotor are performed. (Moves slightly with tap sound) 2) The motor operates according to the command from the indoor controller. Notes) • When the fan rotates while the air conditioner stops due to entering of outside air, etc, the air conditioner may operate while the fan motor stops. • When a fan lock is found, the air conditioner stops, and an error is displayed.
No. Item Outline of specifications 21 8°C heating/Frost protective operation 1) This functional is intended for the cold latitudes and performs objective heating operation (8°C heating operation). 2) This function is valid only for combination with the outdoor units. 3) Using the indoor CODE No. [D1] (1 bit), Valid/Invalid of this function is set up at the customer’s side. ∗ The setup by CODE No. is Invalid [0]/Valid [1] and Invalid [0] has been set at the shipment.
– 40 – TA sensor HA (T10) Optional output Fan output Louver (Used only for Compact 4-way Cassette Type, Ceiling Type) Float SW DC fan return DC fan output Microcomputer operation LED DISP Used for CHK servicing TCJ sensor EXCT Filter/Option error input TC sensor EEPROM Remote controller inter-unit wire Connection interface Drain pump output Remote controller power supply LED Optional power supply Indoor/Outdoor inter-unit cable 5-3. Indoor Print Circuit Board 5-3-1.
Indoor P.C. Board Optional Connector Specifications (MCC-1402) Function Option output Outside error input Connector No. Pin No. CN60 1 DC12V (COM) 2 Defrost output ON during defrost operation of outdoor unit 3 Thermo.
6. TROUBLESHOOTING 6-1. 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.
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 display panel of the indoor unit (lamp display of the wireless 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 F01 Heat exchanger sensor (TCJ) error F02 Heat exchanger sensor (TC) error F10 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. sensor (TS) error F13 Temp. sensor (TH) error F15 Temp.
Others (Other than Check Code) Lamp indication Operation Timer Check code Cause of trouble occurrence Ready — During test run — Disagreement cool/heat (Automatic cool/heat setting to automatic cool/heat prohibited mode) Simultaneous flash Operation Timer Ready Alternate flash – 46 –
– 47 – Duplicated setting of indoor group master unit There is group cable in individual indoor unit. Unset indoor group address Unset indoor capacity Duplicated central control system address Outside error input to indoor unit (Interlock) Indoor unit, AC fan error L03 L07 L08 L09 L20 L30 P01 Remote controller communication (Send) error Duplicated master remote controller E09 Follower unit in group cannot operate by warning from [E03/L03/L07/L08] of master unit.
Check Code List 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 Stop Displayed when (Automatic reset) error is detected E04 • Defective serial sending circuit on outdoor P.C. board Duplicated indoor unit address L03 Duplicated indoor header unit L07 There is group wire in individual indoor unit.
Error mode detected by outdoor unit The check code has been ramified from 4 series and after The ramified check code is displayed only when both the indoor unit and the outdoor unit are 4 series and after. (Ex. Combination of RAV-SM1404BT-E with RAV-SP1404AT-E) When the outdoor unit is 3 series and before, the conventional check code is displayed. (Ex. Combination of RAV-SM1404BT-E and RAV-SM1403AT-E: Indoor unit only is 4 series.
Operation of diagnostic function Check code Indoor unit Cause of operation Status of air conditioner Condition H03 Current detection circuit error Stop Displayed when error is detected P05 Open phase of 3-phase power supply Stop Displayed when error is detected Judgment and measures 1. Check outdoor P.C. board (MCC-1596). (AC current detection circuit) 1. Check open phase of 3-phase power supply. 2. Black lead wire to be connected to CN03 of MCC-1596 does not pass through T611. 1.
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. Not displayed at all (Operation on remote controller is impossible.) No communication with master indoor unit • Remote controller wiring is not correct. • Power of indoor unit is not turned on. 2.
6-3. Diagnostic Procedure for Each Check Code (Indoor Unit) Check code [E01 error] Is inter-unit cable of A and B normal? NO Correct inter-unit cable of remote controller YES Correct connection of connector. Check circuit wiring. NO Check power connection of indoor unit. (Turn on power again.) NO Check indoor P.C. board (MCC-1402). Defect → Replace YES Correct a header unit/a follower unit.
[E04 error] NO Does outdoor operate? Is group address setup of remote controller correct? YES NO Check CODE No. [14]. YES Are wiring in indoor unit and 1, 2, 3 inter-unit cables correct? NO Correct wiring and inter-unit cables. NO Correct wiring of connector and terminal blocks. NO Check indoor P.C. board (MCC-1402).
[E18 error] Is inter-unit cable of A and B normal? NO Correct inter-unit cable of remote controller. YES Correct connection of connector. Check circuit wiring. NO Check power connection status of indoor unit (Connect again).
[L20 error] Are wiring connections to communication lines U3 and U4 normal? NO Correct wiring connection. YES Is not the multiple same central control system addresses connected? YES Correct central control system address. NO Check central controller (including 1:1 model connection interface) and indoor P.C. board (MCC-1402). Defect → Replace [L30 error] Are outside devices of connector CN80 connected? NO Check indoor P.C. board (MCC-1402). Defect → Replace NO Check outside devices.
[P10 error] Is connection of float switch connector (Indoor control board CN34) normal? NO Correct connection of connector. YES NO YES Does float switch work? Is circuit wiring normal? YES NO NO Does drain pump work? Check and correct wiring and wire circuit. YES Is power of drain pump turned on? ∗ NO Are connector pins 1 and 3 at drain pump unit side shorted (Resistance value 0)? YES NO YES Replace drain pump and indoor P.C. board (MCC-1402). Check the drain pipe, etc. Check indoor P.C.
[P12 error] Turn off the power. Are not there connections errors or disconnection on connectors CN333 and CN334 of indoor unit P.C. board (MCC-1402)? YES Correct connection of connector. NO Remove connectors CN333 and CN334 of indoor unit P.C. board (MCC-1402). Does the fan rotate without trouble when handling the fan with hands? NO Replace indoor fan motor. YES Are resistance values between phases at fan motor connector CN333 motor side of indoor P.C.
[P19 error] Is operation of 4-way valve normal? (Check the pipe temp., etc. during cooling/heating operation. NO Are 1.3 to 1.6kΩ applied to resistance value of 4-way valve coil ? NO Replace 4-way valve coil. YES YES Defective Check outdoor P.C. board. Defective → Replace Check outdoor P.C. board operation. (See the following description.) OK Check temperature sensors. TE sensor TS sensor Indoor TC sensor Defective → Correct, replace Check 4-way valve.
[F02 error] Is connection of TC sensor connector (CN101 on Indoor P.C. board) correct? NO Correct connection of connector. YES Are characteristics of TC sensor resistance value normal? NO Replace TC sensor. YES ∗ Refer to Charqacteristics-2. Check indoor P.C. board (MCC-1402). Defect → Replace [F01 error] Is connection of TCJ sensor connector (CN102 on Indoor P.C. board) correct? NO Correct connection of connector.
[C06 error] (1:1 model connection interface) NO Are U3 and U4 communication lines normal? Correct communication line. YES NO ∗1 Correct connection of connector. Is connection of connector normal? YES ∗1 In case of 1:1 model connection interface 1:1 model connection interface (MCC-1440) CN51 and indoor P.C. board CN050. NO Are A and B communication lines normal? Check connection of A and B terminal blocks. Correct communication line of remote controller.
[E03 error] (Master indoor unit) [E03 error] is detected when the indoor unit cannot receive a signal from the wired remote controller (also central controller). Check A and B remote controllers and communication lines of the central control system U3 and U4. As communication is impossible, this check code [E03] is not displayed on the wired remote controller and the central controller. [E01] is displayed on the wired remote controller and [C06 error] is displayed on the central controller.
Temperature – Resistance value characteristic table TA, TC, TCJ, TE, TS, TO sensor TD, TL sensor Representative value Temperature (°C) Representative value Ω) Resistance value (kΩ (Minimum value) (Standard value) Temperature (°C) (Maximum value) Ω) Resistance value (kΩ (Minimum value) (Standard value) (Maximum value) 150.5 161.3 172.7 0 32.33 33.80 35.30 0 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.
Winding Resistance of Fan Motor Part name Compact 4-way Cassette type Fan motor STF-230-60-1R Checking procedure Measure the resistance value of each winding by using the tester. Fan motor inside wiring diagram Red 1 2 3 4 5 Concealed Duct type Fan motor ICF-280-120-1C (RAV-SM804BT ∗) ICF-280-120-2C (RAV-SM564BT ∗, RAV-SM1104BT ∗, RAV-SM1404BT ∗) Black – Red 87 ± 8.7 Black – White 87 ± 8.7 Red – White 87 ± 8.
7. REPLACEMENT OF SERVICE P.C. BOARD 7-1. Indoort Unit The nonvolatile memory (hereafter called EEPROM, IC10) on the indoor unit P.C. board before replacement includes the model specific type information and capacity codes as the factory-set value and the important setting data which have been automatically or manually set when the indoor unit is installed, such as system/indoor/group addresses, high ceiling select setting, etc.
[1] Setting data read out from EEPROM The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out. SET CL TEST Step 1 , and button on the remote controller simultaneously for more than 4 seconds. Push ∗ When the group operation control is performed, the unit No. displayed for the first time is the header unit No. At this time, the CODE No. (DN) shows “ ”.
[3] Writing the setting data to EEPROM The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values. SET CL TEST , and buttons on the remote controller simultaneously for more than 4 seconds. Step 1 Push ∗ In the group control operation, the unit No. displayed for the first time is the header unit No. At this time, the CODE No. (DN) shows “ ”. Also, the fan of the indoor unit selected starts its operation and the swing operation starts if it has the louvers.
Table 1 DN Item Setting data Factory-set value 01 Filter sign lighting time Depending on Type 02 Filter pollution level 0000: standard 03 Central control address 0099: Not determined 06 Heating suction temperature shift 0002: +2°C 0F Cooling only 0000: Heat pump 10 Type Depending on model type 11 Indoor unit capacity Depending on capacity type 12 System address 0099: Not determined 13 Indoor unit address 0099: Not determined 14 Group address 0099: Not determined 1E Tempera
8. SETUP AT LOCAL SITE AND OTHERS 8-1. Indoor Unit 8-1-1. Test Run Setup on Remote Controller 1. When pushing Then push TEST button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display. ON / OFF button. • • • • “TEST” is displayed on LC display during operation of Test Run. During Test Run, temperature cannot be adjusted but air volume can be selected. In heating and cooling operation, a command to fix the Test Run frequency is output.
Procedure Description Turn on power of the air conditioner. 1 2 The operation is not accepted for 5 minutes when power has been turned on at first time after installation, and 1 minute when power has been turned on at the next time and after. After the specified time has passed, perform a test operation. Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button. Then change the fan speed to [High] using [Fan] button.
8-1-2. Forced Defrost Setup of Remote Controller (For wired remote controller only) (Preparation in advance) 1 2 3 4 5 6 TEST SET CL Push + + buttons simultaneously for 4 seconds or more on the remote controller. (Push buttons while the air conditioner stops.) The first displayed unit No. is the master indoor unit address in the group control. Every pushing button, the indoor unit No. in the group control is displayed one after the other.
8-1-4. Function Selection Setup Perform setting while the air conditioner stops. 1 2 TEST SET CL Push + + buttons simultaneously for 4 seconds or more. The first displayed unit No. is the master indoor unit address in the group control. In this time, fan and louver of the selected indoor unit operate. UNIT LOUVER ò Every pushing button (button at left side), the indoor unit No. in the group control is displayed one after the other.
Item No. (DN) table (Selection of function) Item DN Description At shipment 01 Filter sign lighting time} 0000 : None 0002 : 2500H (4-Way/Duct/Ceiling Type) 0002 : 2500H 02 Dirty state of filter 0000 : Standard 0001 : High degree of dirt (Half of standard time) 0000 : Standard 03 Central control address 0001 : No.1 unit 0099 : Unfixed to 0064 : No.
DN Item Description At shipment 60 Timer set (Wired remote controller) 0000 : Available (Operable) 0001 : Unavailable (Operation prohibited) 0000 : Available 8b Correction of high heat feeling 0000 : None 0000 : None 42 Self clean time 0000: None 0001: 0.5h to 0.012: 6.0h The case that compressor-ON time is 10 to 60 minutes is set up. When ON time is over 60 minutes, the operating time becomes two times of it.
8-1-5. Cabling and Setting of Remote Controller Control 2-remote controller control (Controlled by 2 remote controllers) This control is to operate 1 or multiple indoor units are controlled by 2 remote controllers. (Max. 2 remote controllers are connectable.
8-1-6. Monitor Function of Remote Controller n Calling of sensor temperature display Each sensor temperature of the remote controller, indoor unit, and outdoor unit can become known 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. is displayed. TEMP.
n Calling of error history The error contents in the past can be called. 1 TEST CL Push + buttons simultaneously for 4 seconds or more to call the service check mode. Service Check goes on, the CODE No. 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. 2 In order to monitor another error history, push the set / buttons to change the error temperature history No.
n Indoor unit power-ON sequence • The unit without power feed waits entirely → Waiting status is released by system start • Reboot when power is fed on the way Power ON 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 header / follower units are not intermingled.
8-2. Setup at Local Site / Others Model name: TCB-PCNT30TLE 8-2-1. 1:1 Model Connection Interface (TCC-LINK adapter) 1. Function This model is an optional P.C. board to connect the indoor unit to 1:1 model connection interface. 2. Microprocessor block diagram Indoor unit Central controller 1:1 model connection interface P.C. board CN050 Indoor control P.C.
4. Wiring Specifications • Use 2-core with no polar wire. No. of wires Size • Match the length of wire to wire length of the central control Up to 1000m: twisted wire 1.25mm2 system. If mixed in the SMMS system, the wire length is 2 Up to 2000m: twisted wire 2.0mm2 lengthened with all indoor/outdoor inter-unit wire length at side. • To prevent noise trouble, use 2-core shield wire. • Connect the shield wire by closed-end connection and apply open process (insulating process) to the last terminal.
6. External view of P.C. board assembly Terminator (SW01) 52 85 7. Address setup In addition to set up the central control address, it is necessary to change the indoor unit number. (Line/Indoor/Group address). For details, refer to 1:1 model connection interface Installation Manual. 8-3. How to Set up Central Control Address Number When connecting the indoor unit to the central control remote controller using 1:1 model connection interface, it is necessary to set up the central control address number.
How to confirm the central control address (New function for AMT32E remote controller) It can be confirmed even during operation or stopping. 1 2 3 Push UNIT LOUVER button for 4 seconds or more. ò In the frame at left side of the remote controller screen, the lighting set contents are displayed. During unset time, '' (At shipment from factory) is displayed. ò After lighting display for 3 seconds, the display automatically disappears.
9. ADDRESS SETUP 9-1. Address Setup
When an outdoor unit and an indoor unit are connected and they are twin-triple, 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.9-2. Address Setup & Group Control Indoor unit No. Group address : N – n = Outdoor unit line address N (Max. 30) – Indoor unit address n (Max. 64) : 0 = Single (Not group control) 1 = Header unit in group control 2 = Follower unit in group control Header unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/ from the remote controllers and follower indoor units.
4. Single group operation • Each indoor unit controls the outdoor unit individually. 2-1 Header/Sub 1-1 Header/Sub 4-1 Header/Master 3-1 Header/Sub 8-1 Header/Sub 5.
9-2-2. Automatic Address Example from Unset Address (No miswiring) 1. Standard (One outdoor unit) 1-2 Header/Sub 1-1 Follower/Sub 1-2 Header/Master (1-2) (1-3) 1-3 Follower/Master 1-1 Follower/Sub (1-1) (1-2) (1-1) 1-1 Individual (Header/Master) 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 Header/Sub 1-1 Header/Sub 3-1 Header/Master 8-1 Header/Sub (Max.
9-3. Address Setup (Manual Setting from Remote Controller) In case that addresses of the indoor units will be determined prior to piping work after wiring work • Set an indoor unit per a remote controller. • Turn on power supply. (Example of 2-lines wiring) (Real line: Wiring, Broken line: Refrigerant pipe) Outdoor Outdoor 1 2 3 1 2 3 1 2 3 1 2 3 4 5 6 7 8 9 10 11 1 2 3 Indoor Indoor Indoor A B A B A B A B A B 1 2 2 1 3 2 2 1 2 2 2 2 Push + + buttons simultaneously for 4 seconds or more.
9-4. Confirmation of Indoor Unit No. Position 1. To know the indoor unit addresses though position of the indoor unit body is recognized • In case of individual operation (Wired remote controller : indoor unit = 1 : 1) (Follow to the procedure during operation) 1 2 Push ON / OFF button if the unit stops. Push button. Unit No. 1-1 is displayed on LCD. (It disappears after several seconds.) The displayed unit No. indicate line address and indoor unit address.
10. DETACHMENTS 10-1. Compact 4-Way Cassette Type RAV-SM∗∗∗MUT ∗ Ceiling panel: RBC-UM11PG(W)E Preparing work: 1. Before work, be sure to stop the power supply of the air conditioner and turn off switch of the power supply breaker. (Otherwise an electric shock may be caused.) 2. Be sure to put on the gloves when working; otherwise an injury may be caused with parts sharp edges etc. No. Part name 1 Suction grille Remarks Procedure 1. Detachment 1) 1) Loosen the fixing screw.
No. 2 Part name Electric parts cover Remarks Procedure 1. Detachment 1) Perform work of procedure 1 -1. 2) Take off screws (Ø4 × 10, 3 pcs.) fixing the electric parts cover. 3) Remove the electric parts cover from the temporary hanging hook of the electric parts cover, and then open the cover. Screws Temporary hanging hook 2. Attachment 1) Close the electric parts cover and hook the cover hole to the temporary hanging hook. 2) Tighten the fixing screws. (Ø4 × 10, 3 pcs.
No. Part name 4 Ceiling panel Procedure Remarks 1. Detachment 1) Perform works of procedure 1 -1-, 2 -1, and 3 -1. 2) Remove the flap connector (CN33, White, 5P) connected to the control P.C. board and then take off the lead wire from the clamp. Hanging section of tentative hook of ceiling panel Temporary bracket Push to remove NOTE) Remove the connectors after unlocking the lock of the housing. Drain piping corner 3) Take off screws (M5, 4 pcs.) fixing the ceiling panel.
No. Part name 5 Control P.C. board Remarks Procedure 1. Detachment 1) Perform works of procedure 1 -1- and 2 -1. 2) Remove the connectors connected from the control P.C. board to other parts.
No. 6 Part name Electric parts box Remarks Procedure 1. Detachment 1) Perform works of procedure 1 -1-and 2 -1. 2) Remove connectors of the lead wire connected to the following connectors of the control P.C. board.
No. 7 Procedure Part name Bell mouth Remarks 1. Detachment 1) Perform work of procedure 1 -1. 2) Take off the lead wires of the drain pump, float switch, and fan motor from the bell mouth. 3) Take off fixing screws of the bell mouth. (Ø4 × 10, 4 pcs.) Fixing claws for lead wires Bell mouth 2. Attachment 1) Mount the bell mouth with screws. (Ø4 × 10, 4 pcs.) 2) Perform wiring as original before being removed.
No. 9 Procedure Part name Fan motor Remarks 1. Detachment 1) Perform work of procedure 8 . 2) Take off screws fixed with lead holding bracket of the fan motor. (Ø4 × 10, 2 pcs.) 3) Open wiring holding part of the fan motor lead holding bracket and then take off the fan motor lead wire from the bracket. 4) Take off fixing nuts for the fan motor to remove the fan motor.(M 3 pcs.
No. 10 Part name Drain pan Procedure Remarks 1. Detachment 2 screws 1) Perform works of procedure 4 -1 and 7 -1. 2) Remove the drain cap and extract drain water accumulated in the drain pan. NOTE) Socket of drain pan When removing the drain cap, be sure to receive drain water with a bucket, etc. 3) Take off screws fixing the drain pan to remove the drain pan. (Ø4×10, 4 pcs.) Drain pan 2. Attachment 1) Insert the drain cap into the drain pan.
No. 12 Part name Heat exchanger Procedure Remarks 1. Detachment 1) Recover refrigerant gas. 2) Remove the refrigerant pipe at indoor unit side. 3) Perform work of procedure 10 -1. 4) Take off screws (Ø4 × 10, 3 pcs.) fixing the piping cover to remove the piping cover. 5) While holding the heat exchanger, remove fixing band and fixing screws (Ø4 × 10, 3 pcs.) and then remove the heat exchanger. Piping cover 2.
10-2. Concealed Duct Type RAV-SM∗∗∗BT ∗ Be sure to turn off the power supply or circuit breaker before disassembling work No. Part name Q Electrical parts box Procedure Remarks 1. Remove the air filter. 2. Remove the set screws (2 positions) of the electrical parts cover. 3. Remove the electrical parts cover. 4. Remove the set screws (2 positions) of the electrical parts box. 5. Remove the electrical parts box. The electrical parts box is fixed to the main unit with claws at the right side.
No. Part name Fan motor Remarks Procedure 1. Remove the Multi blade fan. 2. Remove the hexagon head screw of fixing fan motor holder. 3. Remove the fan motor holder (2 positions). Fan motor holder Fan motor Screws (Fixing fan motor holder) Drain pan 1. Take down the main unit and then treat the drain pan on the floor. 2. Remove the set screws (562 : 7, 802, 1102, 1402 : 9 positions) of fixing lower plate. 3. Remove the lower plate from main unit. 4.
No. Part name Drain pump Procedure Remarks 1. Remove the drain pan and float switch. 2. Remove the set screws (3 positions) of fixing drain pump plate and main unit. 3. Remove the set screws (3 positions) of fixing drain pump plate and drain pump. Drain pump Drain pump holder 6 -2 Screws (Fixing drain pump holder) Screws (Fixing plate and drain pump) 6 -3 Drain pump holder 6 -3. View from reverse side of drain pump (6) TC, TCJ sensor 1.
10-3. Ceiling Type RAV-SM∗∗∗CT ∗ Be sure to turn off the power supply or circuit breaker before disassembling work No. Part name Procedure Suction grille 1. Remove the screws of air intake grille fixing knob on a side of each filter. 2. Slide the suction grille fixing knobs (2 positions) toward the arrow direction of left figure, and open the suction grille. 3.
No. Part name Multi blade fan motor Procedure Remarks 1. Remove the suction grille. 2. Remove the connector of the fan motor from P.C. board. 3. (SM802, SM1102, SM1402CT-E only) Remove the set screw (1 position) to fixing and reinforcing bar. (Slide the reinforcing bar toward arrow side on the left figure.) 4. Push the fan cover fixing hooks (2 positions) forward fan cover side and remove the fan cover. 5.
No. Part name Drain pan Vertical grille Procedure Remarks 1. Take down the main unit and then treat the drain pan on the floor. 2. Remove the both side panels and suction grilles. 3. (SM802, SM1102, SM1402CT-E only) Remove the set screw (1 position) to fixing and reinforcing bar. (Slide the reinforcing bar toward arrow side on the right figure.) 4. Remove the set screws (9 positions) of fixing lower plate. 5. Remove the heat insulation on the drain pan.
No. Part name Horizontal louver Procedure Remarks 1. Push the louver holder toward arrow direction of right figure, and pull out the center shaft (SM562, SM802 : 1 position, SM1102, SM1402 : 2 positions) from louver holder. 2. Pull off the left and right chaft of horizontal louver. 8 -1 Louver holder TC, TCJ sensor 1. Remove the drain pan. 2. Remove the set screws (4 positions) and heat exchanger support. 3. Pull out the sensor is inserted into pipe of the heat exchanger.
11. EXPLODED VIEWS AND PARTS LIST 11-1.
Location No. Part No.
Model name RAV-SM Location No. Part No.
Electric parts 401 405 403 404 402 Model name RAV-SM Location No. Part No.
11-2.
Location No. Part No.
RAV-SM804BT-E, RAV-SM804BT-TR 230 221 228, 229 204 211 219 202 203, 904, 905 235 218 901, 902, 903 216 222 212 223 220 234 210 232, 233 224 – 110 –
Location No. Part No.
RAV-SM1104BT-E, RAV-SM1404BT-E, RAV-SM1104BT-TR, RAV-SM1404BT-TR 230, 231 232 223 204 220 211 221 237 215 202 214 203, 904 213 901, 902, 903 219 224 236 212 225 222 210 234, 235 226 – 112 –
Model name RAV-SM Location No. Part No.
Electric parts 405 402 401 403 407 404 406 Model name RAV-SM Location No. Part No.
11-3.
Location No. 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 269 270 271 Part No.
Location No. 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 260 261 262 263 264 265 266 267 268 269 270 271 Part No.
Electric parts 403 401 406 402 405 404 407 Model name RAV-SM Location No. Part No.
WARNINGS ON REFRIGERANT LEAKAGE Check of Concentration Limit The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit. The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer.
TOSHIBA CARRIER CORPORATION 23-17, TAKANAWA 3 CHOME, MINATOKU, TOKYO, 108-8580, JAPAN Copyright © 1999 to 2010 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.