Инструкции на Мультисплит-системы Toshiba серии RAS .... (сервис-мануалы) бренда Toshiba

FILE NO. A09-011

SERVICE MANUAL AIR-CONDITIONER SPLIT TYPE RAS-M10PKVP-E, RAS-M13PKVP-E, RAS-M16PKVP-E, RAS-M18PKVP-E / RAS-5M34UAV-E R410A PRINTED IN JAPAN, Feb, 2010 ToMo

1. SAFETY PRECAUTIONS

The important contents concerned to the safety are described on the product itself and on this Service Manual. Please read this Service Manual after understanding the described items thoroughly in the following contents (Indications/Illustrated marks), and keep them. [Explanation of indications]…

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY A switch or circuit breaker that can disconnect all poles must be included in the fixed wiring. Be sure to use an approved circuit breaker or switch. DANGER • Ask an authorized dealer or qualified installation professional to install/maintain…

CAUTION

• Exposure of unit to water or other moisture before installation may result in an electrical short. Do not store in a wet basement or expose to rain or water. • Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of the…

2-1. Specifications

<Heat Pump Models> RAS-M10PKVP-E,RAS-M13PKVP-E,RAS-M16PKVP-E,RAS-M18PKVP-E / RAS-5M34UAV-E Unit model Indoor Outdoor RASRAS(kW) (kW) (kW) (kW) Cooling Capacity Cooling Capacity range Heating Capacity Heating Capacity range Power supply Indoor Electric charactaristics Total COP Operating noise Unit…

2-2. Specifications of Performance When Each Indoor Unit is Combined with Other Unit

Outdoor Unit : RAS-5M34UAV-E <Cooling/220V> Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 220 1 unit 07 — — — — 2.0 — — — — 10 — — — — 2.7 — — — — 13 — — — — 3.7 — — — — 16 — — — — 4.5 — — — — 18 — — — — 5.0 — — — — 07 07 — — — 2.00 2.00 — — — 10 07 — — — 2.70 2.00…

<Cooling/220V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 220 4 units — 1.95 1.95 1.95 1.95 — — 2.42 1.79 1.79 1.79 — — 3.01 1.63 1.63 1.63 — — 3.39 1.50 1.50 1.50 — — 3.59 1.44 1.44 1.44 — — 2.24 2.24 1.66 1.66 — — 2.81 2.05 1.52 1.52 — — 3.17 1.90 1.41 1.41 — — 3.38 1.82 1.35…

<Cooling/220V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 220 5 units 1.96 1.96 1.96 1.96 1.96 2.50 1.85 1.85 1.85 1.85 3.13 1.69 1.69 1.69 1.69 3.56 1.58 1.58 1.58 1.58 3.81 1.52 1.52 1.52 1.52 2.34 2.34 1.74 1.74 1.74 2.95 2.16 1.60 1.60 1.60 3.38 2.03 1.50 1.50 1.50 3.61…

<Cooling/230V>

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 230 1 unit 07 — — — — 2.0 — — — — 10 — — — — 2.7 — — — — 13 — — — — 3.7 — — — — 16 — — — — 4.5 — — — — 18 — — — — 5.0 — — — — 07 07 — — — 2.00 2.00 — — — 10 07 — — — 2.70 2.00 — — — 13 07 — — — 3.70 2.00 — — — 16 07…

<Cooling/230V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 230 4 units — 1.95 1.95 1.95 1.95 — — 2.42 1.79 1.79 1.79 — — 3.01 1.63 1.63 1.63 — — 3.39 1.50 1.50 1.50 — — 3.59 1.44 1.44 1.44 — — 2.24 2.24 1.66 1.66 — — 2.81 2.05 1.52 1.52 — — 3.17 1.90 1.41 1.41 — — 3.38 1.82 1.35…

<Cooling/230V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 230 5 units 1.96 1.96 1.96 1.96 1.96 2.50 1.85 1.85 1.85 1.85 3.13 1.69 1.69 1.69 1.69 3.56 1.58 1.58 1.58 1.58 3.81 1.52 1.52 1.52 1.52 2.34 2.34 1.74 1.74 1.74 2.95 2.16 1.60 1.60 1.60 3.38 2.03 1.50 1.50 1.50 3.61…

<Cooling/240V>

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 240 1 unit 07 — — — — 2.0 — — — — 10 — — — — 2.7 — — — — 13 — — — — 3.7 — — — — 16 — — — — 4.5 — — — — 18 — — — — 5.0 — — — — 07 07 — — — 2.00 2.00 — — — 10 07 — — — 2.70 2.00 — — — 13 07 — — — 3.70 2.00 — — — 16 07…

<Cooling/240V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 240 4 units — 1.95 1.95 1.95 1.95 — — 2.42 1.79 1.79 1.79 — — 3.01 1.63 1.63 1.63 — — 3.39 1.50 1.50 1.50 — — 3.59 1.44 1.44 1.44 — — 2.24 2.24 1.66 1.66 — — 2.81 2.05 1.52 1.52 — — 3.17 1.90 1.41 1.41 — — 3.38 1.82 1.35…

<Cooling/240V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 240 5 units 1.96 1.96 1.96 1.96 1.96 2.50 1.85 1.85 1.85 1.85 3.13 1.69 1.69 1.69 1.69 3.56 1.58 1.58 1.58 1.58 3.81 1.52 1.52 1.52 1.52 2.34 2.34 1.74 1.74 1.74 2.95 2.16 1.60 1.60 1.60 3.38 2.03 1.50 1.50 1.50 3.61…

<Heating/220V>

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 220 1 unit 07 — — — — 2.7 — — — — 10 — — — — 4.0 — — — — 13 — — — — 5.0 — — — — 16 — — — — 5.5 — — — — 18 — — — — 6.0 — — — — 07 07 — — — 2.70 2.70 — — — 10 07 — — — 4.00 2.70 — — — 13 07 — — — 4.81 2.59 — — — 16 07…

<Heating/220V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 220 4 units — 2.20 2.20 2.20 2.20 — — 2.91 1.96 1.96 1.96 — — 3.36 1.81 1.81 1.81 — — 3.64 1.79 1.79 1.79 — — 3.83 1.72 1.72 1.72 — — 2.63 2.63 1.77 1.77 — — 3.09 2.47 1.67 1.67 — — 3.32 2.42 1.63 1.63 — — 3.51 2.34 1.58…

<Heating/220V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 220 5 units 2.28 2.28 2.28 2.28 2.28 3.16 2.13 2.13 2.13 2.13 3.70 2.00 2.00 2.00 2.00 3.95 1.94 1.94 1.94 1.94 4.18 1.88 1.88 1.88 1.88 2.91 2.91 1.96 1.96 1.96 3.42 2.74 1.85 1.85 1.85 3.66 2.66 1.79 1.79 1.79 3.88…

<Heating/230V>

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 230 1 unit 07 — — — — 2.7 — — — — 10 — — — — 4.0 — — — — 13 — — — — 5.0 — — — — 16 — — — — 5.5 — — — — 18 — — — — 6.0 — — — — 07 07 — — — 2.70 2.70 — — — 10 07 — — — 4.00 2.70 — — — 13 07 — — — 4.81 2.59 — — — 16 07…

<Heating/230V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 230 4 units — 2.20 2.20 2.20 2.20 — — 2.91 1.96 1.96 1.96 — — 3.36 1.81 1.81 1.81 — — 3.64 1.79 1.79 1.79 — — 3.83 1.72 1.72 1.72 — — 2.63 2.63 1.77 1.77 — — 3.09 2.47 1.67 1.67 — — 3.32 2.42 1.63 1.63 — — 3.51 2.34 1.58…

<Heating/230V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 230 5 units 2.28 2.28 2.28 2.28 2.28 3.16 2.13 2.13 2.13 2.13 3.70 2.00 2.00 2.00 2.00 3.95 1.94 1.94 1.94 1.94 4.18 1.88 1.88 1.88 1.88 2.91 2.91 1.96 1.96 1.96 3.42 2.74 1.85 1.85 1.85 3.66 2.66 1.79 1.79 1.79 3.88…

<Heating/240V>

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 240 1 unit 07 — — — — 2.7 — — — — 10 — — — — 4.0 — — — — 13 — — — — 5.0 — — — — 16 — — — — 5.5 — — — — 18 — — — — 6.0 — — — — 07 07 — — — 2.70 2.70 — — — 10 07 — — — 4.00 2.70 — — — 13 07 — — — 4.81 2.59 — — — 16 07…

<Heating/240V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 240 4 units — 2.20 2.20 2.20 2.20 — — 2.91 1.96 1.96 1.96 — — 3.36 1.81 1.81 1.81 — — 3.64 1.79 1.79 1.79 — — 3.83 1.72 1.72 1.72 — — 2.63 2.63 1.77 1.77 — — 3.09 2.47 1.67 1.67 — — 3.32 2.42 1.63 1.63 — — 3.51 2.34 1.58…

<Heating/240V> (Continued)

Power supply (V) Operating status A Indoor unit B C D E A Unit Capacity B C D E 240 5 units 2.28 2.28 2.28 2.28 2.28 3.16 2.13 2.13 2.13 2.13 3.70 2.00 2.00 2.00 2.00 3.95 1.94 1.94 1.94 1.94 4.18 1.88 1.88 1.88 1.88 2.91 2.91 1.96 1.96 1.96 3.42 2.74 1.85 1.85 1.85 3.66 2.66 1.79 1.79 1.79 3.88…

2-2-1. Operation Characteristic Curve

<Cooling> <Heating> 20 20 • Conditions Indoor : DB27˚C/WB19˚C Outdoor : DB35˚C Air flow : High Pipe length : 5m × 5 5 units operating 16 Current (A) 240V 10 230V 240V 230V 220V • Conditions Indoor : DB20˚C Outdoor : DB7˚C / WB6˚C Air flow : High Pipe length : 5m × 5 5 units operating 18 Current (A)…

3. 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). The refrigerating oil is also changed in accordance with change of refrigerant, so be careful…

Table 3-2-1 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 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…

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…

Table 3-2-6 Flare and flare nut dimensions for R22

Dimension (mm) Nominal diameter Outer diameter (mm) Thickness (mm) A B C D Flare nut width (mm) 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 19.7 19.0 16.0 23 27 3/4 19.05 1.0 23.3 24.0 19.2 34 36 45˚ 6˚ to 4 B A C 43˚ D to 4 5˚…

3-3. Tools

3-3-1. Required Tools The service port diameter of packed valve of the outdoor unit in the air-water heat pump 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…

3-4. 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…

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…

3-5-3. Brazing

2. Characteristics required for flux • 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. •…

4. CONSTRUCTION VIEWS

4-1. Indoor Unit RAS-M10PKVP-E, RAS-M13PKVP-E, RAS-M16PKVP-E, RAS-M18PKVP-E (At the time of operation) 9 296.2 790 Moving panel Plasma ion charger 790 242 (At the time of a stop) 295 Front panel 77 Piping port from left/right sides Air filter Piping port from left/right sides 62 Guard wire (Knockout…

4-2. Outdoor Unit

5. WIRING DIAGRAM

5-1. Indoor Unit RAS-M10PKVP-E, RAS-M13PKVP-E, RAS-M16PKVP-E, RAS-M18PKVP-E Air purifier electrode Power supply Sheet metal CN501 GRN&YEL CN03 BLK CN401 (RED) (WHI) DC5V DC12V DC29V 1 CN603 (YEL) CN601 (WHI) BLK BLK Power supply circuit R01 Thermo sensor (TA) Line filter Varistor CN604 (RED)…

5-2. Outdoor Unit

RAS-5M34UAV-E POWER SUPPLY CIRCUIT – 37 –

6. SPECIFICATIONS OF ELECTRICAL PARTS

7. REFRIGERANT CYCLE DIAGRAM

RAS-M10PKVP-E, RAS-M13PKVP-E, RAS-M16PKVP-E, RAS-M18PKVP-E / RAS-5M34UAV-E 3m NOTE : Gas leak check position Refrigerant flow (Cooling) Refrigerant flow (Heating) NOTE : • You need not add refrigerant if the piping length is 40m or less. • If the length exceeds 41m, add 20g of refrigerant per 1…

7-2. Operation Data

<Cooling> (Continued)

таблицы и схемы — в просмотре

<Heating>

<Heating> (Continued)

таблицы и схемы — в просмотре

8. CONTROL BLOCK DIAGRAM

8-1. Indoor Unit RAS-M10PKVP-E, RAS-M13PKVP-E, RAS-M16PKVP-E, RAS-M18PKVP-E Indoor Unit Control Unit M.C.U. Humidity sensor Louver Motor Functions Heat Exchanger Sensor (Tcj) • Cold Draft Preventing Function Heat Exchanger Sensor (Tc) • 3-minute Delay at Restart for Compressor Room Temperature…

8-2. Outdoor Unit (Inverter Assembly)

RAS-5M34UAV-E Outdoor air temp. sensor Gas side pipe temp. sensor Suction temp. sensor Evaporator temp. sensor Discharge temp. sensor MCC-5071 (CONTROL P.C. B) A unit P.M.V. M.C.U B unit P.M.V. C unit P.M.V. Driver circuit of P.M.V. D unit P.M.V. E unit P.M.V. A unit serial signal communication…

9. OPERATION DESCRIPTION

• Detection of inverter input current and current release operation • Over-current detection and prevention operation to IGBT module (Compressor stop function) • Compressor and outdoor fan stop function when serial signal is off (when the serial signal does not reach the board assembly of outdoor…

1. Basic

operation Description 1. Operation control Receiving the user’s operation condition setup, the operation statuses of indoor/outdoor units are controlled. 1) The operation conditions are selected by the remote controller as shown in the below. 2) A signal is sent by ON button of the remote…

1. Basic

operation Operation flow and applicable data, etc. Description 2. Operating mode selection when performing 2-room operation 1) The outdoor unit operating mode conforms to the instructions of the indoor unit that was pushed first. 2) When combined operation consisting of cooling (dry) and heating…

1. Basic

operation 4. AUTO operation Selection of operation mode As shown in the following figure, the operation starts by selecting automatically the status of room temperature (Ta) when starting AUTO operation. 1) Detects the room temperature (Ta) when the operation started. 2) Selects an operation mode…

2. Indoor fan

motor control <In cooling operation> (This operation controls the fan speed at indoor unit side.) The indoor fan (cross flow fan) is operated by the phase control induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respectively. (Table 1) UH H M+ M L+ L LUL SUL…

2. Indoor fan

motor control (Continued) <In heating operation> (Heat pump model) (This operation controls the fan speed at indoor unit side.) The indoor fan (cross flow fan) is operated by the phase control induction motor. The fan rotates in 5 stages in MANUAL mode, and in 5 stages in AUTO mode, respectively.…

2. Indoor fan motor control

(Continued) [In starting and in stability] In starting In stability FAN AUTO • Until 12 minutes passed after operation start • When 12 to 25 minutes passed after operation start and room temp. is 3°C or lower than set temp. • When 12 to 25 minutes passed after operation start and room temp. is…

3. Outdoor fan

motor control The blowing air volume at the outdoor unit side is controlled. Receiving the operation command from the controller of indoor unit, the controller of outdoor unit controls fan speed. For the fan motor, a DC motor with non-stage variable speed system is used. However, it is limited to 8…

4. Capacity

control Description 1) Four indoor units from A to E determine the respective instruction revolutions from the difference between the remote controller setting temperature (Ts) and the indoor temperature (Ta), and transmit this to the outdoor unit. 2) The outdoor unit receives the instructions from…

6. Release protective

control by temperature of indoor heat exchanger <In cooling/dry operation> (Prevent-freezing control for indoor heat exchanger) In cooling/dry operation, the sensor of indoor heat exchanger detects evaporation temperature and controls the compressor speed so that temperature of the heat exchanger…

7. Winding/Coil

heating control When the outdoor temperature is low, the windings/ coils are heated to ensure compressor reliability. Outdoor temperature To Winding/Coil heating amount 12˚C OFF 11˚C Winding/Coil heating is performed when the following conditions are met. Condition 1 : When the discharge sensor…

10. Louver control

1) Louver position Operation flow and applicable data, etc. Description This function controls the air direction of the indoor unit. • The position is automatically controlled according to the operation mode (COOL/HEAT). • The set louver position is stored in memory by the microcomputer, and the…

11. SLEEP MODE When pushing [SLEEP MODE] button on the remote

operation controller, a quiet and mild operation is performed by reducing the fan speed and the compressor speed. <Cooling operation> This function operates the air conditioner with the difference between the set and the room temperature as shown in the following figure. The time correction is…

12. Temporary

operation Description Pushing [RESET] button starts the temporary operation of [AUTO] operation. When keeping [RESET] button pushed for 10 seconds or more, the temporary [COOL] operation is performed. YES PURE indicator (Orange) ON Push RESET button. NO NO Did you push [RESET] button for 3 seconds…

13. Air purifying

control (Continued) 2. Description Error is determined to have occurred (indicated by the PURE indicator (Orange) in the following two cases. 1) When the panel switch has been set to OFF by the opening of the air inlet grill, etc. 2) When an abnormal discharge caused by a symptom such as the…

14. Discharge

temperature control 1. Purpose This function detects error on the refrigerating cycle or error on the compressor, and performs protective control. Td value 117°C 112°C 108°C 105°C 98°C Description Control operation Judges as an error and stops the compressor. Reduce the compressor speed. Reduce…

16. Clean operation

Description 1. Purpose The clean operation is to minimize the growth of mold, bacteria etc. by running the fan and drying so as to keep the inside of the air conditioner clean. Unit now performing cooling or dry operation Clean operation When the cooling or dry operation shuts down, the unit…

Setting the clean operation cancel

Add J231 of the wireless unit P.C. board assembly. ∗ This cancels the auto restart function. Hold down the [RESET] button on the indoor unit for at least 3 seconds but not more than 10 seconds. The indoor unit’s buzzer emits three beeps. This completes the clean operation cancel setting. Setting the…

18. Select switch on

remote controller 1. Purpose This operation is to operate only one indoor unit using one remote controller. Push the operation button on the remote controller. Both indoor units start operation. Description YES Select “B” as the setting for one of the two indoor units and for the remote controller.…

19. Set temperature

correction Indoor Control P.C. Board (Factory Default) 1. Purpose When the difference between the set temp. of the remote controller and the room temp. is wide due to the installation condition, etc, the set temp. is corrected. (HEAT operation only) Jumper wire J804 J805 J806 J807 IC801 J804 J805…

9-3. Auto Restart Function

This indoor unit is equipped with an automatic restarting function which allows the unit to restart operating with the set operating conditions in the event of a power supply being accidentally shut down. The operation will resume without warning 3 minutes after power is restored. This function is…

9-3-2. Cancel the Auto Restart Function

To cancel auto restart function, proceed as follows : Repeat the setting procedure : the unit receives the signal and beeps 3 times. The unit will be required to be turned on with the remote controller after the main power supply is turned off. • When the system is on stand-by (not operating)…

9-4. Remote Controller and Its Functions

9-4-1. Parts Name of Remote Controller 7 Auto louver button (SWING) 1 Each time you push the SWING button, you can change the swing mode. (A receiving beep is heard.) (Vertical swing o Horizontal swing o Vertical and Horizontal swing o Stop swinging) Push the button again to stop the swinging mode.…

9-4-2. Name and Functions of Indications on Remote Controller

[Display] All indications, except for the clock time indicator, are displayed by pushing the 1 Transmission mark 8 This transmission mark indicates when the remote controller transmits signals to the indoor unit. 2 Mode indicator Indicates the current operation mode. (AUTO : Automatic control, A…

9-5. Hi POWER Mode

When [Hi POWER] button is pushed while the indoor unit is in Auto, Cooling or Heating operation, Hi POWER mark is indicated on the display of the remote controller and the unit operates according to the present operation mode as described below. 1. Automatic operation The preset temperature changes…

10. INSTALLATION PROCEDURE

10-1. Safety Cautions The indoor unit shall be installed so that the top of the indoor unit is positioned at least 2 m high. Also, avoid putting anything on the top of the indoor unit. For the rear left and left piping Wall Hook 70 mm or more Hook [1] Installation plate 160 mm or more [5] Mounting…

10-2. Optional Parts, Accessories and Tools

10-2-1. Optional Installation Parts Part Code Parts name Q’ty Refrigerant piping [Y] [Z] Indoor unit name Liquid side (Outer diameter) Gas side (Outer diameter) RAS-M10PKVP-E, RAS-M13PKVP-E 6.35 mm 9.52 mm RAS-M16PKVP-E, RAS-M18PKVP-E 6.35 mm 12.7 mm 1 ea. Shield pipe (for extension drain hose)…

10-2-3. Installation/Servicing Tools

Changes in the product and components In the case of an air conditioner using R410A, in order to prevent any other refrigerant from being charged accidentally, the service port diameter of the outdoor unit control valve (3-way valve) has been changed. (1/2 UNF 20 threads per inch) • In order to…

10-3. Indoor Unit

10-3-2. Drilling and Mounting Installation Plate 10-3-1. Installation Place K Drilling • A place which provides enough spaces around the indoor unit as shown in the diagram. • A place where there are no obstacle near the air inlet and outlet. • A place which allows easy installation of the piping to…

K Mounting the installation plate directly

on a wall 1) Securely fit the installation plate onto the wall by screws with the upper and lower catches. 2) To mount the installation plate on a concrete wall use anchor bolts. Drill the anchor bolt holes as illustrated in the above figure. 3) Place the level at the top end of the installation…

10-3-4. Wiring Connection

K Connecting cable Wiring the connecting cable can be carried out without removing the front panel. 1. Remove the air inlet grille. Open the air inlet grille upward and pull it toward you. 2. Remove the terminal cover and cord clamp. 3. Insert the connecting cable (or as according to local…

10-3-5. Piping and Drain Hose Installation

4) Attach the drain cap • Insert hexagonal wrench (4 mm). K Piping and drain hose forming Since condensation results in machine trouble, make sure to insulate both the connecting pipes separately. (Use polyethylene foam as insulating material.) Rear right Left Bottom right Right 4 mm Piping…

K Piping on the bottom right or the

bottom left CAUTION • Bind the auxiliary pipes (two) and connecting cable with facing tape tightly. In case of leftward piping and rear-leftward piping, bind the auxiliary pipes (two) only with facing tape. • After making slits on the front panel with a knife or similar tool, cut them out with a…

10-3-6. Indoor Unit Installation

10-3-7. Drainage 1. Pass the pipe through the hole in the wall, and hook the indoor unit on the installation plate at the upper hooks. 2. Swing the indoor unit to right and left to confirm that it is firmly hooked on the installation plate. 3. While pushing the indoor unit onto the wall, hook it at…

10-4. Outdoor Unit

10-4-1. Accessory and Installation Parts Installation manual 1 Rubber cap (Water-proof) 5 F-GAS label 1 Drain nipple 1 CD-ROM (Installation manual) 1 10-4-2. Refrigerant Piping • Piping kit used for the conventional refrigerant cannot be used. • Use copper pipe with 0.8 mm or more thickness. • Flare…

10-4-5. Installation

NOTE For installation, at least 3 dimensions should be kept free from obstacles (walls). Necessary space for installation If you need to install the outdoor unit in a location where there are some obstructions or a wall, secure sufficient space as shown in the figure below. The cooling/heating…

K How to remove the front panel

• Tightening torque of flare pipe The pressure of R410A is higher than R22. (Approx. 1.6 times) Therefore securely tighten the flare pipes which connect the outdoor unit and indoor unit with the specified tightening torque using a torque wrench. If any flare pipe is incorrectly connected, it may…

\10-4-6. Refrigerant Piping Connection

10-4-7. Evacuating After the piping has been connected to all indoor unit(s), you can perform the air purge together at once. CAUTION KEEP IMPORTANT 4 POINTS FOR PIPING WORK AIR PURGE 1. Keep dust and moisture from entering the pipes. 2. Tight connection (between pipes and unit) 3. Evacuate the air…

K Packed valve handling precautions

3 units (A + B + C) Multi • Open the valve stem all the way out ; do not try to open it beyond the stopper. • Securely tighten the valve stem cap in torque is as follows : Gas side (Ø12.7 mm) 50 to 62 N•m (5.0 to 6.2 kgf•m) Gas side (Ø9.52 mm) 33 to 42 N•m (3.3 to 4.2 kgf•m) Liquid side (Ø6.35 mm)…

10-4-9. Miswiring (Mispiping) Check

10-4-8. Check and Test Operation For R410A, use the leak detector exclusively manufactured for HFC refrigerant (R410A, R134a, etc.). * The conventional leak detector for HCFC refrigerant (R22, etc.) cannot be used because its sensitivity for HFC refrigerant lowers to approx. 1/40. • Pressure of…

¤ : LED ON, l : LED OFF, ¥ : LED Flash

10-5. Test Operation

10-5-4. Select Switch on Remote Controller 10-5-1. Gas Leak Test • If two indoor units are installed in the same room or adjoining rooms, when the user tries to operate only one unit, both units may receive the same remote controller signal and operate. This can be prevented by changing one of the…

10-6. Removing the Main Parts

10-6-2. Removing the Moving Panel Normally, the front panel, moving panel, and air flow louvres do not need to be removed. However, use the procedure below if removal of these parts is necessary. 1) Open the moving panel, and support the moving panel by the panel support on the right side. 2) Remove…

10-6-3. Attaching the Moving Panel

1) Grasp both sides of the moving panel, and insert the right-side joint first. Left-side joint 3) Insert a flathead screwdriver into the gap of the louver fixture on the right and left ends of the vertical air flow louver, and turn in the counterclockwise direction to remove. Right-side joint…

11. HOW TO DIAGNOSE THE TROUBLE

The pulse modulating circuits are mounted to both indoor and outdoor units. Therefore, diagnose troubles according to the trouble diagnosis procedure as described below. (Refer to the check points in servicing written on the wiring diagrams attached to the indoor/outdoor units.) Table 11-1 No. Page…

11-1-3. Operation Which is not a Trouble

(Program Operation) 11-1. First Confirmation 11-1-1. Confirmation of Power Supply Confirm that the power breaker operates (ON) normally. 11-1-2. Confirmation of Power Voltage Confirm that power voltage is AC 220–240 ±10%. If power voltage is not in this range, the unit may not operate normally. For…

11-2. Primary Judgment

To diagnose the troubles, use the following methods. 1) Judgment by flashing LED of indoor unit 2) Self-diagnosis by service check remote controller 3) Judgment of trouble by every symptom Firstly use the method (1) for diagnosis. Then, use the method (2) or (3) to diagnose the details of troubles.…

11-4. Self-Diagnosis by Remote Controller (Check Code)

1. If the lamps are indicated as shown B to E in Table 11-3-1, execute the self-diagnosis by the remote controller. 2. When the remote controller is set to the service mode, the indoor controller diagnoses the operation condition and indicates the information of the self-diagnosis on the display of…

11-4-2. Check Code

1. After servicing, push the START/STOP button to return to the normal mode. 2. After servicing by the check code, turn off breaker of the power supply, and turn on breaker of the power supply again so that memory in the microcomputer returns the initial status. However, the check codes are not…

Operation of diagnosis function

Block distinction Check code Block Outdoor P.C. board Check code Air conditioner status Cause of operation Remarks Judgment and action Inverter over-current protective circuit operates. (Short time) All off Displayed when error is detected. Even if trying operation again, all operations stop…

11-5. Judgment of Trouble by Symptom

11-5-1. Indoor Unit (Including Remote Controller) (1) Power of indoor unit does not turned on <Primary check> 1. Is the supply voltage normal? 2. Is the normal voltage provided to the outdoor unit? 3. Is the crossover cable connected properly? 4. Is the fuse (F01) blown? Operation Check Item…

(3) Only the indoor motor fan does not operate

<Primary check> 1. Is it possible to detect the power supply voltage (AC220–240V) between and on the terminal block? 2. Does the indoor fan motor operate in cooling operation? (In heating operation, the indoor fan motor does not operate for approximately 10 minutes after it is turned on, to…

(4) Indoor fan motor automatically starts to rotate by turning on power supply

<Cause> The IC is built in the indoor fan motor. Therefore the P.C. board is also mounted to inside of the motor. If the P.C. board is soldered imperfectly or the IC is defective, the fan motor may automatically rotate by turning on power supply. <Inspection procedure> 1. Remove the front panel.…

(5) Troubleshooting for remote controller

<Primary check> Check that A or B selected on the main unit is matched with A or B selected on the remote controller. Push the START/STOP button. The unit does not beep at all. Operation lamp on indoor unit is not indicated. NO Is transmission mark indicated? YES Is receiver on indoor unit exposed…

11-5-2. Wiring Failure (Interconnecting and Serial Signal Wire)

(1) Outdoor unit does not operate 1) Is the voltage between and of the indoor terminal block varied? 2) Confirm that transmission from indoor unit to outdoor unit is correctly performed based upon the following diagram. NOTE • Measurement should be performed 2 minutes and 30 seconds after…

Service Support Function (LED Display, Switch Operation)

1. Outline A various setup and operation check can be performed by DIP switches at 2 positions (SW801, SW802) and the pushdown button switches (SW800) on the outdoor control P.C. board MCC-5071. Operation part Part No. Specifications Operation contents SW800 Pushdown button switch SW801 DIP switch…

11-6. Trouble Diagnosis by Outdoor LED

Outdoor

LED display [07] l¡llll Check and troubleshooting (Item without special mention indicates part of outdoor unit.) [Case thermo operation, Power supply error ] Is AC mains voltage correct? (198 to 264V) NO Confirm power supply construction. etc. YES Are CN609 of P.C. board MCC-1571 connection and case…

Outdoor

LED display [18] Check and troubleshooting (Item without special mention indicates part of outdoor unit.) 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. sensor (TE) error, Suction temp. sensor (TS)…

Outdoor

LED display [1C] Check and troubleshooting (Item without special mention indicates part of outdoor unit.) 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. Compressor system error, Compressor lock, Gas side temp. sensor (TGa…

Outdoor

LED display [1C] l¡¡¡¡l (Continued) Check and troubleshooting (Item without special mention indicates part of outdoor unit.) [A room gas side temp. sensor (TGa) error] Is connection of CN604 on P.C.B MCC-5071 correct? Is resistance value of TGa sensor correct? NO YES l¡lll¡ Check outdoor P.C.B.…

Outdoor

LED display [1C] l¡¡l¡¡ l¡l¡¡¡ (Continued) Check and troubleshooting (Item without special mention indicates part of outdoor unit.) [Communication error between MCUs] Are connections of CN802 on P.C.B MCC-5071 and CN802 on P.C.B MCC-1571 correct? NO Correct connection. YES Check outdoor P.C. Boards.…

Outdoor

LED display [1F] l¡¡l¡l Check and troubleshooting (Item without special mention indicates part of outdoor unit.) [Compressor break down] Is AC mains voltage correct? (198 to 264V) NO Check wiring construction. Ask repair of power supply. NO Check wire connection and correct it. YES Remove and…

Outdoor

LED display [20] ¥lll¡l (Continued) Check and troubleshooting (Item without special mention indicates part of outdoor unit.) [PMV error for D room] Is PMV under correct conditions? NO Repair defective position. Replace defective part. Error Correct connector. Sensor error → Replace. YES Check temp.…

11-7. Troubleshooting

11-7-1. How to Check Whether the Air Purifier is Good or Not Turn off the power breaker once, and turn on again after 10 seconds. NO Does the OPERATION indicator flash? To item “Power supply is not turned on” Primary check YES Turn off the power breaker and remove CN401 (Micro switch connector).…

11-8. Inspection of the Main Parts

11-8-1. Inspection of the P.C. Board (Indoor Unit) CAUTION (1) Operating precautions 1) When removing the front panel or the P.C. board, be sure to shut off the power supply breaker. 2) When removing the P.C. board, hold the edge of the P.C. board and do not apply force to the parts. 3) When…

(3) Check procedures

Table 11-8-1 No. Procedure Check points 1 Turn off the power supply breaker and remove the P.C. board assembly from electronic parts base. Remove the connecting cables from the terminal block. Check whether or not the fuse (F01) is blown. Impulse voltage was applied or the indoor fan motor…

+12V +5V GND IC801 L01 DB01 C03 T101 [1] Sensor characteristic table 100 Resistance value (kΩ) 90 80 TD 70 TD : Discharge temp. sensor TA : Room temp. sensor TC, TCj : Heat exchanger temp. sensor TO : Outdoor temp. sensor TE : Outdoor heat exchanger temp. sensor TS : Suction temp. sensor TGa to TGe…

11-8-3. Indoor Unit (Other Parts)

No. Part name 1 Room temp. (TA) sensor Heat exchanger (TC) sensor Heat exchanger (TCj) sensor Checking procedure Disconnect the connector and measure the resistance value with tester. (Normal temp.) Temperature Sensor TA, TC, TCj (k:) 10°C 20°C 25°C 30°C 40°C 20.7 12.6 10.0 7.9 4.5 2 Remote…

11-9. How to Simply Judge Whether Outdoor Fan Motor is Good or Bad

1. Symptom • Outdoor fan motor does not rotate. • Outdoor fan motor stops within several tens seconds though it started rotating. • Outdoor fan motor rotates or does not rotate according to the position where the fan stopped, etc. Remote controller check code “02 : Outdoor block, 1A : Outdoor fan…

<MCC-1571>

Electrolytic capacitors (760μF/400V) Reactor connecting connectors Lead wire for grounding P09 (Black) Power supply connecting lead wire P01 (Red) P02 (White) Compressor output terminals CN200 CN201 CN202 Power supply protective fuse F01 (250V, 25A) Inter-unit wire protective fuse F03 (250V, 10A)…

<MCC-5071>

Power supply connecting connector CN01 (Red) Indoor/Outdoor communication signal LED D502, D511, D517, D524, D531 (Orange,Indoor → Outdoor) D501, D508, D515, D520, D527 (Green,Outdoor → Indoor) Indoor/Outdoor communication wire Protective fuse F01 (250V, 3.15A ,plastic case) Lead wire for Indoor/…

12. HOW TO REPLACE THE MAIN PARTS

12-1. Indoor Unit WARNING Since high voltages is applied to electrical parts, turn off the power without fail before starting replacement work. After repairs have been completed and the front panel and cabinet have been attached, perform test run and check for smoke, unusual sound, and other…

12-1-2. Fixing Frame Assembly

12-1-3. Electric Parts Cover Detached 1) Detach the two air filters. 2) Disconnect the plasma ion charger connector and the earth lead (black). (The earth lead is connected to the heat exchanger with a screw.) 3) Remove the two screws securing the fixing frame to the rear of the indoor unit. 1)…

12-1-5. Louver 1) Remove the electric parts cover screw. 2) Detach the metal electric parts cover. 3) Disconnect the connectors from the P.C. board. 4) Disconnect the solderless terminals from the P.C. board. 5) Remove the P.C. board. 1) Open the moving panel, and support it with the panel support.…

12-1-6. Heat Exchanger

12-1-7. Fan Motor 1) Perform work of Detachment 12-1-1. Removing the Front Panel and Moving Panel and 12-1-2. Fixing Frame Assembly. 2) Remove the pipe holder at the rear of the unit. 3) Remove the two fixing screws (10 mm) at the left of the heat exchanger. 4) Remove the fixing screw of the heat…

12-1-8. Cross Flow Fan

1) Perform work of Detachment 11-1-1. Removing the Front Panel and Moving Panel and 11-1-2. Fixing Frame Assembly. 2) Remove the two fixing screws (10 mm) at the left of the heat exchanger end plate, and then remove the two fixing screws (12 mm) of the bearing base assembly. 3) Remove the bearing…

12-2-3. High-voltage Power Supply Unit and

Discharger Unit 12-2. Plasma Ion Charger 12-2-1. Common Procedure 1) Perform work of Detachment 12-1-1. Removing the Front Panel and Moving Panel for the indoor unit. 2) Detach the two air filters. 12-2-2. Protective Board 1) Remove the screw shown in the figure. 2) Shift the protective board to the…

12-3. Outdoor Unit

Remarks No. Part name Procedure 1 Common procedure CAUTION Front panel 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 turn off the switch of the breaker. 2) Remove the front panel.…

Discharge port cabinet Procedure Remarks 1. Detachment 1) Perform work of Detachment 1 of 1 . 2) Take off screws for the discharge port cabinet and the partition plate. (ST1T Ø4 × 8, 3 pcs.) 3) Take off screws for the discharge port cabinet and the bottom plate. (Hexagonal screw Ø4 × 10, 2 pcs.) 4)…

Inverter assembly Remarks Procedure 1) Perform works Detachment 1 of 1 and 3 . Inverter fixed board Fixing screw WARNING Never disassemble the inverter until 5 minutes after the power supply was turned off because there is a fear that an electric shock may occur. NOTE) When working, be sure to use…

Procedure

4 Inverter assembly (Continued) 8) Remove the soundproof plate (upper). 9) Remove the terminal cover of the compressor and then remove the compressor lead of the compressor. 10) Pull up the inverter assembly and then remove it. Remarks Soundproof plate (upper) Reactor cover side Compressor lead Case…

Procedure

5 CDB P.C. board 1) Perform works of Detachment 1 of 1 and 4) of 4 . Remarks Power supply connector Terminal relay connector CDB P.C. board CAUTION Never disassemble the inverter until 5 minutes after the power supply was turned off because there is a fear that an electric shock may occur. 2) Remove…

DI P.C. board (Continued) Procedure 7) Remove the earth wire of DI P.C. board. (Truss head B tight screw Ø4 × 6, 1 pc.). 8) Take off fixing screws for DI P.C. board. (Flange nut to fix element Ø3 × 16, 7 pcs.: Pan head S tight screw to fix P.C. board Ø3 × 20, 1 pc.) 9) Remove DI P.C. board. (3…

Replacement of reactor Procedure Remarks 1. Reactor to be attached to the inverter assembly Reactor cover Reactor relay connector Reactor cover Reactor 1) Perform works of Detachment 1 of 1 and 4 . 2) Remove the relay connector of the reactor. 3) Remove the reactor cover. (Truss head B tight screw…

Procedure

8 Fan motor 1) Perform works of Detachment 1 of 1 and 2 . 2) Take off flange nut which fixes the fan motor and the propeller fan. The flange nut is loosened by turning it clockwise. (To tighten the flange nut, turn it counterclockwise.) 3) Remove the propeller fan. 4) Remove the relay connector for…

Compressor assembly Procedure Remarks 1. Removal of defective compressor 1) Perform work of Detachment 1 of 1 . 2) Recover the refrigerant gas from the outdoor unit. 3) Perform works of 2 , 3 and 4 . 4) Remove the soundproof plate and TD sensor. 5) Take off fixing screw for the anchor board and the…

Fan guard Remarks Procedure 1. Detachment 1) Perform works of Detachment 1 of 1 and 2 . CAUTION Bell mouth Discharge port cabinet Fan guard Hooking claw Work on the cardboard, cloth, and etc. in order to prevent damage on the product. 2) Take off the discharge port cabinet and put it as the fan…

4-way valve coil Procedure Remarks Attachment Mount 4-way valve coil so that the label side directs upper side of the cabinet. Detail A Detail A 4-way valve unit Label 4-way valve coil 13 PMV Coil: Black Coil: Blue Coil: Green Coil: Red Coil: Yellow 1. Detachment 1) Perform work of Detachment 1 of 1…

TE sensor (Outdoor heat exchange temperature) Remarks Procedure Attachment Mount TE sensor on the straight part of the condenser discharge port pipe so that the lead wire directs upward and the sensor directs the liquid store tank. Detail F Detail C 15 TS sensor (Suction temperature) Attachment…

TG sensor TGe: Black TGd: Blue TGc: Green TGb: Red TGa: Yellow Remarks Procedure Attachment Mount these sensors on the directly arranged part of the header connecting pipe at gas side so that the cabinet turns toward the front side and the sensors turn toward upper cabinet. NOTE) When mounting the…

Procedure

19 Sensor wiring process (Continued) Bind TS sensor, TE sensor and TO sensor with the bundling band. Pass TE sensor and TO sensor through upper part of the inverter fixing board and then bind them with the bundling band. Remarks Inverter fixing board NOTE) Using the bundling band being on the…

13. EXPLODED VIEWS AND PARTS LIST

13-1. Indoor Unit RAS-M10PKVP-E, RAS-M13PKVP-E, RAS-M16PKVP-E, RAS-M18PKVP-E 214, 221, 222, 212, The parts in the following parts list are conformed to RoHS. Therefore be sure to use the following parts for repairing and replacing. Location Part No. No. Description Location Part No. No. 43005779…

13-3. Outdoor Unit

The parts in the following parts list are conformed to RoHS

Therefore be sure to use the following parts for repairing and replacing. Location No. Part No. Description Location No. Part No. Description 43005793 43005792 43100440 43100453 43107278 43107277 43109422 43122113 43100455 4304C702 43146686 43046508 43047684 43047683 43047682 43147196 43047401…

13-4. Inverter Assembly

RAS-5M34UAV-E The parts in the following parts list are conformed to RoHS. Therefore be sure to use the following parts for repairing and replacing. Location No. Part No. Description Location No. Part No. Description 43160610 43160611 43050425 703 43050446 704 705 43150319 43158192 Terminal Block…

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