Кондиционеры Mitsubishi Heavy Industries серии SRK-HJ. Полный сервис-мануал бренда Mitsubishi Heavy Industries

Super Link LON Gateway 4.7.1 SC-LIF-E Air Conditioning Control System 1. SYSTEM ARCHITECTURE 1. SYSTEM DIAGRAM The system configuration diagram of LonWorks interface is shown below. Outdoor units are omitted to make the diagram easy. Building Management System Host Computer LONWORKS The number…

Assignment illustration of NODEs and indoor units

The Superlink addresses of the indoor units are assigned to each NODE in the Interface as explained below. Interface unit Unit 1 Unit 0 Unit 2 Unit 3 I0 I1 I2 I3 I4 I5 I6 I7 I8 I9 I10 I11 I12 I13 I14 I15 NODE 0 NODE 1 NODE 2 NODE 3 The number indicates the Superlink address of the indoor unit. The…

Assignment example of NODE, and indoor unit addresses

In case that the indoor unit addresses 0, 1, 2, 4, 5, 7, 8, 10, 11 and 12 are to be assigned. Proper assignment : If address of the indoor unit is not sequential, it is regarded as blank. SC-LIF-E Unit 0 Unit 1 I0 I1 I4 I5 Unit 2 Unit 3 I2 NODE 0 I7 NODE 1 I8 I10 I11 NODE 2 I12 NODE 3 Wrong…

Notes for assignment of NODEs, and indoor unit addresses

1. Remote controller group connection If several indoor units are connected to one remote controller, the state of each indoor unit might become unmatched if each indoor unit is individually controlled with the host computer via the LonWorks Interface. In this case, the status display might be…

2. Equipment specifications

Item Casing box dimensions Weight Construc Case material tion Case painting Installation method Power supply voltage Power supply Specifications 250(H) x 100(W) x 180(D) Approx. 2.6kg Zinc-plated steel plate (t1.2) Color:cream Fixed with the mouting brackets Single-phase 100VAC-15% to 200VAC+10%…

3. Function specifications

[Control function] 1. On / Off command The Run / Stop is applied to each indoor unit. It is the same function as the On / Off command from the remote controller connected to the indoor unit. 2. Operation mode setting 3. Temperature setting The operation modes (Automatic, Cooling, Fan and Heating)…

[Setting function]

1. Send Heartbeat 2. MinimumSendTime 3. Delay Time 4. Receive Heartbeat It sets the interval time for sending the following output network variables. This function is invalidated at shipment. · On / Off status · Temperature set status It sets the minimum time to send the following network variable.…

4. Connection wiring diagram

Service SW & Service LED NODE 0 NODE 1 NODE 2 NODE 3 L AC100 / 200 V Ground OFF 01 ON N 1 2 A B Air Conditioning Control System Main power LED Main power switch To Superlink network To LONWORKS network 555

5. Outline drawing

556 Air Conditioning Control System

Detailed Description of the System Machines SC-LGW-A 1. INTRODUCTION 1. SCOPE This product specification is applied to the LON Gateway SC-LGW-A which connects the LON*1 network with the MITSUBISHI HEAVY INDUSTRIES' "SUPERLINK" networks. This document describes the specifications of the product as…

2. SYSTEM ARCHITECTURE

1. SYSTEM DIAGRAM Fig. 5.5 shows a basic case of the system diagram of connection between the Building Management System host computer, the LON Gateway and the SUPERLINK control networks. Number of indoor units for one SUPERLINK network Max. 48 indoor units can be connected in case SLA-1 or SLA-2A…

Fig. 5.6 shows a case of the system diagram of connection between the Building Management System host computer, the LON Gateway, and the SUPERLINK control networks along with SUPERLINK option controllers SLA-1 or SLA-2A. The SC-AD-L adapter should be used for connection of MHI's single type packaged…

AIR-CONDITIONER CONNECTION

(1) Packaged Air-Conditioner Models - MHI's Multi KX series - MHI's Multi GHP series - SC-AD-L adapter+Separate PAC series When the SC-AD-Ls are used, some functions will become invalid. The detail explanation of the limitations for the SC-AD-L will appear in the later version of this document. (2)…

3. FUNCTION OVERVIEW

1. LON NETWORK MANAGEMENT FUNCTIONS Since this LON gateway is not LONMARK approved products, some LON network management functions are not supported by this gateway. Table 5.5 List of the LON Network Management Functions Function Explanation Yes No Broadcasts Neuron ID by pressing Service PIN on the…

4.HARDWARE SPECIFICATIONS

(1) Power Supply - AC single phase 100V - 240V +10%, -15% 50/60Hz (2) Operation Temperature - Ambient Temperature - Relative Humidity (3) Storage Temperature - Ambient Temperature - Relative Humidity : 0 to 40 degrees Celsius : Max 85 %RH (without dewing) : -10 to 50 degrees Celsius : Max 85 %RH…

Air Conditioning

Control System NeuronID:XX-XX-XX-XX-XX-XX Air Conditioning Control System Note: Safety covers for the power terminals are not shown Fig. 5.7 Outline Drawing of the SC-LGW-A 563

5.INSTALLATION

1. INSTALLATION CONDITIONS This gateway SC-LGW-A has a terminal block for the AC power supply on the outside surface of the casing. For avoiding electrical shock injury, the SC-LGW-A should be installed inside a cabinet with a lock The direction of placement of this Gateway when installation should…

LON CABLE

This gateway supports the LON FTT-10A twisted-pair transmission line which is the most popular network line type of LONWORKS. Follow the Building Management System vender's the LON cable selection. This gateway has both plug and receptacle for the LON connector on the side panel. Connect the end of…

Air Conditioning Control System Super Link BACnet Gateway SC-BGW-A 1. INTRODUCTION 1. SCOPE This preliminary product specification is applied to the communication unit SC-BGW-A that connects a Building Management System network and MITSUBISHI HEAVY INDUSTRIES' "SUPERLINK" networks by the "BACnet"*1…

2. SYSTEM ARCHITECTURE

SYSTEM DIAGRAM Fig. 5.9 shows a basic case of the system diagram of connection between the building management system host computer, the SC-BGW-A BACnet Gateway and the SUPERLINK control networks. Building Management System Host Computer CELL No. allocation From CELL 0 to CELL 95 can be allocated.…

Fig. 5.10 shows a case of the system diagram of connection between the building management system host computer, the SC-BGW-A BACnet gateway, and the SUPERLINK control networks along with SUPERLINK option controllers such as SLA-1 or SLA-2A. The SC-AD-L adapter should be used for connection of MHI's…

BMS CONNECTION

(1) Lower Layer of the BACnet Protocol This gateway is to be connected to the Building Management System (BMS) network by the BACnet/IP lower layer communication protocol that works over an IP network. - Lower layer protocol : BACnet/IP of the BACnet standard "ANSI/ASHRAE Standard 1351995"…

3.FUNCTION OVERVIEW

1. COMMUNICATION FUNCTIONS Table 5.7 shows the list of the functions of this BACnet gateway from a view point of BACnet communication between a building management system host computer and this gateway. Table 5.7 Communication Function List Function 2. Description Reset start Alive check Broadcasts…

4.HARDWARE SPECIFICATIONS

(1) Power Supply - AC single phase 100V - 240V +10%, -15% 50/60Hz (2) Operation Temperature - Ambient Temperature - Relative Humidity (3) Storage Temperature - Ambient Temperature - Relative Humidity : 0 to 40 degrees Celsius : Max 85% RH (without dewing) : -10 to 50 degrees Celsius : Max 85% RH…

SC-BGW-A

Detailed Description of the System Machines Fig. 5.11 Outline Drawing of SC-BGW-A 572

5. Operation Instructions

5.1 Center Console SLA-1-E Component description and function Requirements Please make a note of the connected units on the attached switch display label, which should be placed above the switch. About installation Please do not install the equipment at places with high humidity or vibration. Please…

Simultaneous operation method

1 Press the simultaneous operation switch All connected units start to run. The operation / check display lamp indicates the following content: In operation: green light on Stop or not connected: off Abnormality: red light on To stop, press the simultaneous stop switch All connected units stop…

For indication of the temperature of the air sucked in

ROOM TEMP (air suction temperature) display Air Conditioning Control System For servicing purposes. This switch is generally not used. CHECK (check) switch Clean the filter if this display lamp is on. AUTO SWING (automatic swing) display For indication of the operation / stop of the swing flap.…

Group setting method

Requirement: Please do not use SLA-2A-E to operate the units prior to group setting. Please make group setting through SLA-2A-E in the following order: Setting of the units other than the control objects. Setting of the control objects. Units other than the object units controlled by central…

Individual setting method

Setting of units controlled by central controller SLA-2A-E but subject to individual control instead of group control. 1 Press SET (set) switch and ALL / GROUP / ONE (simultaneous/group/individual) switch at the same time. The setting mode is activated with characters "00 – 00" flashing. 2 Press…

Simultaneous operation method

Perform simultaneous operation / stop of all the units controlled. Method a Operation: Press the simultaneous operation switch All the units controlled start running and the operation / abnormality display lamp lights in green. Stop: Press the simultaneous stop switch All the units controlled stop…

Method b

1 Press ALL / GROUP / ONE (simultaneous / group / individual) switch. 2 Press the SET (set) switch. GROUP No. (group No.) display flashes. 3 Press UNIT No. / SET TEMP (unit No. / room temperature) switch. Press or to select the group No. Display of the operation status of the selected group. 4 Press…

Individual operation method

Only operate the selected ones among the connected units. 1 Press ALL / GROUP / ONE (simultaneous / group / individual) switch. Switch the mode following the sequence of . Select "ONE (individual)". 2 Press the SET (set) switch. UNIT NO. (unit No.) display flashes. 3 Press UNIT No. / SET TEMP (unit…

Operation details setting method

Setting of the operation mode, room temperature, air rate and automatic swing. 1 Setting of ALL / GROUP / ONE (simultaneous / group / individual) For simultaneous operation, please set to "ALL (simultaneous)". For group operation, please make group setting following the sequence of Step 1, 2, 3, and…

Timer operation method

Timer function is not available in central controller SLA-2A-E. When connected to a weekly timer and a commercially available timer, this unit is able to perform timer operation. 1 ALL / GROUP / ONE (simultaneous / group / individual) setting For simultaneous operation, please set to "ALL…

Demand unit setting method

Demand control function is not available in SLA-2A-E central controller. Demand control is possible when the unit is connected to a demand controller. 1 ALL / GROUP / ONE (simultaneous / group / individual) setup Please set to "ALL (simultaneous)" to enable all units. For group settings, please set…

When the operation / abnormality display lamp lights in red

An abnormality occurs to the air-conditioner When the operation / abnormality display lamp corresponding to the group No. where the abnormal unit is located lights in red, the abnormal unit stops running. The LCD switches to the abnormality display shown in the following diagram and the displays of…

Filter sign reset (Please reset the filter after the cleaning)

1 ALL / GROUP / ONE (simultaneous / group / individual) setting 2 Set to "Central Controller" or "Central Remote Controller" through the CENTER / REMOTE (central controller / remote controller) switch. 3 Press FILTER RESET (filter reset) switch. Simultaneous: The filter sign lights and all units are…

: : within 1,000m. 0.75mm2~2.0mm2 standard wires (shielded wires in case of any interference) Spring SLA-2A-E SLA-1-E y Up to 3 central controllers SLA-2A-E are connectable to one network. In addition, combination with central controller SLA-2A-E is also possible. The maximum number of connectable…

Remote control operation is prohibited

when the demand is input. Remote control operation is prohibited and the operation mode is fan when thedemand is input. Open CENTER/REMOTE setting cannot be changed. Shorted(lactory default) Auto mode can be set. Auto mode cannot be set. Open Shorted(lactory default) CENTER/REMOTE setting can be…

Air Conditioning Control System Weekly Timer SCA-WT-E Component description and function All the contents are recorded on the LCD for explanation. Program Display Display of Week Display of Setting Mode : indicating the current week. : indicating day-off. : indicating the week set by the timer.…

Week & current time setting

1 Press MODE (setting mode) switch TIME (time setting) is displayed in the setting mode. 2 Press SELECT (select) switch The symbol flashes on the indicator of week. 3 Make the symbol pressing switch. 4 Press SELECT (select) switch The "hour" part of the TIME (current time) flashes. 5 Adjust the…

Setting of programmed operation

3-cycle programmed operation can be set for each day of a week. (Example) To operate the air-conditioners in the group No. 10 on Wednesday according to the following program: Program : operate during 9:05 a.m.~11:50 a.m. Program : operate during 1:05 p.m.~5:00 p.m. 1 Press MODE (setting mode) switch…

12 Press SELECT (select) switch

The "hour" part of OFF (power-off time) flashes. 13 Make it point to AM 1 1:-- by pressing switch. 14 Press SELECT (select) switch The "minute" part of OFF (power-off time) flashes. 15 Make it point to 50 by pressing switch. 16 Press SET (set) switch Setting for the program is done. The flashing…

ON/OFF Time Setting Rules

Please set the ON time to -:- - a.m. (morning) if only the OFF time is set. The On time can not be set alone. Regard the OFF time as the one in the next day if the ON time is later than the OFF time. (Example) If Wednesday 10:00 p.m. ~ 7:00 a.m. is set, the operation time will be: 10:00 p.m.…

Day-off setting

The timer setting by day can be temporarily cancelled through the day-off setting. [Example] To set Wednesday as a day-off: 1 Press MODE (setting mode) switch to display DAY OFF (day-off setting). 2 Press SELECT (select) switch The symbolflashes on the week. 3 Make point to "W (Wednesday)" by…

Confirmation of time set by timer

The time set by the program timer can be confirmed. 1 Press CONFIRM (setting confirmation) switch is displayed. 2 Press SELECT (select) switch GROUP No. (group No.) 00 flashes. When not used in combination with central controller SLA2A-E, the group No. is not displayed and symbol above the week…

About power failure compensation

Hints The power failure compensation function is available in the weekly timer SCA-WT-E (which is set to invalid at the delivery from the factory). Please get in touch with the sales outlet of the air-conditioner. About Power Failure Compensation Function The setting status can be memorized when the…

Power source kit Power Cord Power Source 220V Attached Wire COM 220V GND 5V Signal Wire Connection network (terminal block A/B of the indoor unit or the outdoor unit) Indoor Unit The weekly timer is set to 1 for each network. Weekly Timer (SCA-WT-E) SLA-2A-E Outdoor Unit Indoor Unit Wiring Example…

1. Test Run

1.1 Standard Multi (FDCA140HKXEN4) 1.1.1 Procedure of test run The test run is work to confirm the following item and that it can meet the user's needs without incompatibility. (1) Confirmation of construction Use limitations: total number of indoor units / capacity, L / H of refrigerant pipe…

6 7 Height difference between indoor unit and outdoor unit Height difference between indoor units Installation space (indoor / outdoor units) The outdoor unit is the above the indoor unints : ≤ 30m The outdoor unit is the below the indoor unints : ≤ 15m Same as above Same as above ≤ 4m Refer to…

Service Check before test runs Do test run after the following matter is confirmed before test runs If test run is done directly with omitting the following procedures, troubles that have been no confirmed might occur sometimes after it is handed over. (1) Confirm if mixed use of signal wires and…

(4) Pairing (confirmation of indoor unit / outdoor unit combination)

• Purpose: For the combination of the indoor unit and the outdoor unit, the refrigerant pipes are connected according to the equipment blueprint, or / and the addresses of indoor unit / outdoor unit are set according to the equipment drawing, as the result, the combinations of indoor and outdoor on…

Confirm that temperature of heat exchanger of all indoor units at operation mode decreases when cooling and rises(1) when heating with QSS (the checker of air conditioner). Note (1) compared with stopping,cooling: 5 ~ 10deg heating: 10 ~ 20deg There are variations in the temperature with the…

(2) The data item and the display range: It is displayed on lower dot display part of the remote

control liquid crystal as shown in the above table and data with units is displayed on the right side within the range shown in the table. Remarks : Procedure for displaying data on remote controller The following operation can be done regardless of operating / stopping of the air-conditioner, data…

Service Points for test runs 1.1.4.1 Purpose of test runs Test run procedure described in the next pages to confirm whether the following each item is satisfied for all units at the site. If there are incompatibilities to be corrected, responsibility trader is requested to correct. After corrected…

1.1.4.2 Flow of test runs (Details will be described from next pages)

For one outdoor system, it takes the procedure and time shown in the figure below roughly to do test run. Compressor operating ∆ MAX Start ∆ test run (20 ~ 30 minutes) Full operating ∆ Judgment Pull down (20 ~ 40 minutes) Setting of taming operating • Indoor temperature when cooling: 20 ~ 25 (°C)…

Test run (Continued)

No. Content of work Remarks 2 Data item that should be acquired and measuring method * Data is rapidly acquired. The data of and points the indoor unit is continuously acquired (1) Items acquired from display data of remote controller before the operating situation of the (a)The compressor operating…

Note (1) Data list displayed by 7 segment

Code No Range of Code No Data item display Operating frequency or 0 ~ 120 (Hz) 20 Current of 0 ~ 50 (A) anomaly code compressor Outdoor temperature -20 ~ 43 (°C) 22 Opening of expansion 0 ~ 500 (Pulse) valve (heating) Temperature of heat -25 ~ 73 (°C) 25 Opening of expansion 0 ~ 500 (Pulse)…

test run (Continued)

About 30 minutes ∇ 35 minutes ∇ 45 minutes ∇ Start Ratings Hz attainment Pull-down completion Data confirmation / record Data confirmation / record Start Ratings Hz attainment or pull-down completion Data confirmation / record Data confirmation / record No. Content of work Remarks 4 Confirmation of…

Remarks * Anomaly detection frequency according to cause When the test run will end in about 60 minutes after it starts, • Discharge temperature anomaly the test run result is judged by comparing the recorded data (E36): five times / 60 minutes [over with the standard operating data given in 598…

Service Points for test run when using QSS (the checker of air conditioner) Attention: Do not connect more than one QSS or checker of air conditioner to carefully same network. (Otherwise, in the super-link communication density rises and communication error (E5, others) might be caused.) Necessary…

Standard and Combination Multi (FDCA224HKXE4 ~ FDCA1360HKXE4) 1.2.1 The purpose of test run 1.2.1.1 The meaning and effect of test run (1) During test run, it is not adequate for the latest KX Multi system to be only "capable of cooling and heating". In KX4, various technologies are required during…

Service The total flow of test run 1.2.2.1 Installation check and confirmation before test run <do not perform test run before check is completed> Confirmation before test run Installation check <address check> About equipment design check About installation check After the above checks are…

Service tool required for test run

In KX4 Multi system, the outdoor unit printed wiring board of the main unit has incorporated a standard function as MentePC below of collecting operation data of all indoor units connected and outdoor units and saving the operation data. The function will be used as service tool for address check…

Table 6.2 Specifications of necessary equipment for MentePC measurement

Maker·Product name·Product No. <Maker name: various computer makers > <Product name: omitted> <Product No.: omitted > Overview·Function·Purpose <Notebook PC> Specification: WindowsXP. Windows2000 WindowsMe · Windows98 < Maker name: I / O DATA company> <SD memory> <Product name: 256MB SD memory…

Test Run Installation check Before power is turned on, check to be sure that construction is properly proceeding by listening (partial check). The check is to prevent malfunction from happening during test run or after test run. 1.2.4.1 Check the use restrictions related to equipment design (KX4 8…

Are signal wires and power supply wires mixed or not? Resistance between terminal A ~ B (Ω) = 9100Ω ÷ (number of indoor units + outdoor units + SLA units) Make correction before power is turned on. Refrigerant piping material Is the size proper (Please refer to related information)? Is the quality…

1.2.5.2 Check to be sure that outdoor unit service valve has been opened… must check before

operation Before operation starts, test run operator should check to be sure that master/sub units' "service valves are fully open". [If unit is operated with operation valve closed, low pressure protection device will be actuated, E49 will be displayed and operation will be stopped.] Fig. 6.10 Gas…

1.2.5.4 Address check

· Turn on power and check in the sequence: outdoor unit → indoor unit. The method of checking without operating unit is as follows. Method 1 - method of using MentePC (Indoor unit information acquisition version MentePC_V3. 0.xls) <Refer to MentePC instruction manual etc.> Method 2 - method of using…

Start MentePC and acquire control information from outdoor unit and indoor unit. The addresses (See Fig. 6.17) of all the connected indoor units will be displayed in the "RAMDATA", "LOGDATA" worksheets of EXCEL. However, when the addresses of indoor units and outdoor units are changed, unit power…

(Make the display KX4……DipSW 50; SW8 (5) SW9 (0) Refer to Fig. 6.13)

· The number of connected indoor units should be the same as that shown in the blue print. ⇒If the numbers are not equal, please check the connection condition of ab wire connected to the indoor unit or check the indoor unit printed wiring board. Be sure to correct it to proper condition. Check the…

Test Run Pairing (indoor / outdoor units combination) check 1.2.6.1 Purpose If refrigerant piping connection and address setting of indoor / outdoor units are made according to the equipment design diagram, the combination of indoor / outdoor units can be determined by either refrigerant piping…

1.2.6.3 Check pairing by actual operation

1.2.6.3.1 Method of checking pairing by MentePC Operation content Remarks <Control before start> Pattern of starting varies with the control of crank case heater when power is turned on. Please pay attention to this. Moreover, turn on power 6 hours before starting, and increase oil temperature of…

Mode Selection

Real Time Monitoring Record Data Monitoring EEPROM Data Monitoring Load Saved Data Fig. 6.25 Setting screen of MentePC For detailed information, please refer to MentePC instruction manual. Service <MentePC [Program operation method] > (See Fig. 6.25) 1. Open EXCEL file "MentePC_V . .xls". 2. Macro…

Pairing operation

1.2.6.3.2 Method of checking pairing by remote controller and 7 segment display Operation content <Pairing operation> · Check the heat exchange temperature of all the object indoor units by "operation data display" of remote controller. · Check the indoor units corresponding to operation mode to be…

Data items to be acquired and measuring method, points

* Data should be acquired quickly in (1) Items acquired from MentePC and measuring file order to continuously acquire data (a) Outdoor unit: compressor operation frequency / compressor of indoor units before operation current / high pressure / low pressure / condition of outdoor unit changes…

Operation data check / timing and recording of measurement

(1) After measurement starts, observe the computer screen. When pressure reaches target value (low pressure 0.8MPa in cooling operation; high pressure 2.75MPa in heating operation), check to be sure that discharge temperature, current value, difference between indoor unit return air temperature and…

1.2.7.2 Evaluate by remote controller and 7 segment display

Data judgement Data measuring Operation method (1) Operation by remote controller of indoor units and 7 segment display of outdoor units. Operation content Remarks <Points of operation by operation data display function of remote controller and outdoor 7 segment display function> [Operation method]…

· Table 6.3 The list of "Operation data" displayed by remote controller

11 Indoor operation time 0 ~ 25500h 38 Expansion valve opening 0 ~ 500 (pulse) 2 (Main unit) Notes (1) No.: displayed on the right side on the top of remote controller LCD, representing the displayed data items. (2) Data items and display range: Dot display on the bottom of remote controller LCD…

(4) Operation of

outdoor 7-segment display and list of values By pressing SW8, SW9 as shown in Figure 6.32, the measured data can be displayed. SW8, SW9 Figure 6.32 Outdoor Board (7-segment display) Code No. — 1.2.8 Display Content Anomaly Code Pump Down Check Mode Outdoor Unit Setting CM1 Operation Frequency CM2…

References Attached Table 6.5 KX4 Multi Standard Data Sheet (for Mente PC) 1.2.9.1 KX4 Multi Standard Data Sheet (for Mente PC) 630 Service

1.2.9.2 KX4 Multi Standard Data Sheet (for new remote controller)

.6 5HP Multi Remote Control data sheet Customer Indoor unit Outdoor unit Date of delivery Filled by Model Manufacture No. Model Manufacture No. Model Manufacture No. Model Manufacture No. Model Manufacture No. Model Manufacture No. Model Manufacture No. Model Manufacture No. Model Manufacture No.…

1.2.9.3 KX4 construction checklist

Material name, system name 1.Indoor side Classification Please fill in model and unit No Check item 632 Check person: affiliation, name Criterion Is the installation space within Check through technical materials the restricted range? (inside the vent space, ceiling) (reaching distance, short…

2. Outdoor side

Service Is the installation space within Check through technical the restricted range? materials. Difference (no blown-in air (short circuit)) between outdoor air temperature and suction temperature is within 3 degrees Has the address of combination sub unit been Set SW4-7 to ON set? Have the…

Classification

Test Run Check item 3. System Is the refrigerant piping material qualified? Is the length of refrigerant piping within restricted range? Is the height difference between outdoor unit and indoor unit within limit value? 634 Criterion JIS, seamless phosphordeoxidized copper pipe Check through…

Are the signal wire and power Signal wire terminal block

cord mixed? resistance(appropriate value: 9100 / number of connected units, there are mixed wires under 100Ω) Are the internal & external Wiring mistake has been signal wires and remote resolved controller wires mixed? Is there any circular wiring in Circular wiring has to be the internal and…

2. Troubleshooting

2.1 Before Starting Troubleshooting 2.1.1 Confirmation of the error code on the remote controller (by pressing the inspection switch) and the inspection display and normal display lamps on PCBs (Printed circuit board) of indoor / outdoor units The microcomputer detects errors on electrical…

b) Check Indicator Table

Whether a failure exists or not on the indoor unit and outdoor unit can be know by the contents of remote controller error code, indoor / outdoor unit green LED (power pilot lamp and microcomputer normality pilot lamp) or red LED (check pilot lamp). Indoor unit LED Outdoor unit LED Green Red Green…

FDCA140HKXEN4

Remote controller error code Indoor unit LED Outdoor unit LED Green Red Green Red E30 Keeps flashing Stays OFF Keeps flashing 1 time flash E30 Unmatched indoor / outdoor connection E31 Keeps flashing Stays OFF Keeps flashing 1 time flash E31 Duplication outdoor unit address No. Outdoor unit address…

FDCA224, 280, 335HKXE4

Indoor unit LED Outdoor unit LED Green Red Green Red E30 Keeps flashing Stays OFF Keeps flashing 1 time flash E30 E31 Keeps flashing Stays OFF Keeps flashing 1 time flash E31 E32 Keeps flashing Stays OFF Keeps flashing 1 time flash E32 E36 Keeps flashing Stays OFF Keeps flashing 1 time flash E36-1 1…

FDCA335HKXE4-K, 400 ~ 1360HKXE4

Remote controller error code Indoor unit LED Outdoor unit LED Green Red Green Red E30 Keeps flashing Stays OFF Keeps flashing 1 time flash E30 Unmatched indoor / outdoor connection E31 Keeps flashing Stays OFF Keeps flashing 1 time flash E31 Duplication outdoor unit address No. Outdoor unit address…

E53

Indoor unit LED Outdoor unit LED Green Red Green Red Keeps flashing Stays OFF Keeps flashing Keeps flashing Stays OFF Keeps flashing Keeps flashing Stays OFF Keeps flashing Keeps flashing Stays OFF Keeps flashing E61 Keeps flashing Stays OFF E63 Keeps flashing Stays OFF E54 E59 E60 Outdoor LED…

c) Display sequence of error, inspection display lamp

1) One kind error Display corresponding to the error is shown. 2) More than one errors. Section Display section Error code of remote controller • Displays the error of higher priority (When plural errors are persisting) Inspection LED (red) of indoor E1 > E10 > E 11 > E2 > E3 > E5 > E7 > E9 > E 12 ⋅…

Error

code Error detail Excessive number of indoor unit Transmission error between inverter and outdoor unit PCB E43 E45 Timing of error detection This error is detected when the number of connectable units is set over the specified value at remote control addressing. With a delay of 3 minutes, a recovery…

Service Diagnosis by the power supply reset When any error occurs, reset the power supply as described below to see if it is the result of accidental noise, etc. Check at the indoor unit side. Error Is any error code display? NO YES Check the error code displayed ON / OFF switch OFF Does the error…

When noises intruded into the microcomputer of printed circuit board; State of operation becomes

abnormal such as the units perform irregular operation while the remote controller is not operated, the operation cannot be stopped with the remote controller, etc. Electro magnetic noise prevention (example) the entire surface of control box or • Cover the inside of unit cover with the cover foil…

Cooling operation

Cooling operation Auxiliary electric heater: OFF NO Swing flap? YES NO YES Set direction of air flow Swing flap Program dry on / off? Moisture prevention conditions? Moisture prevention position ON Program dry operation To the page previous OFF Program dry display: cancelled Fan operating at set…

Heating operation

Heating operation Drain-up kit: OFF Swing flap? NO YES Air flow direction setting Swing flap Defrost operation in progress? YES NO Hot start in progress YES NO Defrost/Hot start display:ON Defrost/Hot start display: OFF YES Recycling guard timer ON (5 minutes)? NO YES Test run in progress? NO…

Fan operation

Fan operation NO Swing flap? YES Swing flap Air flow direction setting Fan: Operating at set air flow rate Electronic expansion valve: closed Program dry operation Program dry operation Program dry display Thermostat status? OFF Fan MF: 6 minutes stopped then L operation ON Fan MF: operation: L…

Outdoor unit operation flowchart

Power on Initialize electronic expansion valve Fan or temperature control? Fan Temperature control Restart prevention in progress (5 minutes)? YES NO Has indoor unit thermostat on operation signal been output to more than 1 unit? NO YES Actuation of safety device? YES Outdoor unit malfunction…

Cooling operation

Cooling operation YES Start control in progress? NO YES Oil equalization in progress? NO YES Compressor protection operation in progress? NO Low temperature protection operation in progress? NO YES Inverter compressor magnetic contactor ON Inverter output frequency 30~116Hz 30~116Hz 30~116Hz 38Hz…

b) Set the Dip Switch to the same position before PCB is replaced

Set the Dip Switch to the ON if with jumper wire or to the OFF if without jumper wire. c) Connect the Fast on terminal and the connector to the PCB. Match the wiring color of the fast on terminal to the color printed on the PCB and connect them together with. Note(1) Please connect the PCB carefully…

Function of DIP switches (SW5, 9)

Switch Function ON Test run of condensate pump motor SW5-1 OFF Normal ON Humidifier residual operating: effective SW5-2 OFF Humidifier residual operating: ineffective ON Input: Reverse Invalid SW5-3 OFF signal: Run stop ON Emergency stop signal: Invalid SW5-4 OFF Emergency stop signal: Valid Note…

(4) Check method when the error code is displayed

Remote controller or Indication board: Inspection LED, error code Indoor unit PCB: Red LED ( inspcetion display), Green LED ( CPU. normal display ) Outdoor unit PCB: Red LED ( inspcetion display), Green LED ( CPU. normal display ) (5) Check procedure depending on indication lamps (For the indoor…

Error display : No display

LCD display : No display 2 [Power supply line error] Outdoor unit Red LED Stays OFF Green LED Stays OFF Unit is normal (Malfunction by noisse) YES Indoor unit Red LED Stays OFF Green LED Stays OFF YES Power supply checked between L1 ~ N or L , N Indoor/outdoor YES unit transfomer CNW2 (indoor). CNA2…

Error display : E 1

[Communication error between remote controller~Indoor unit] Indoor and outdoor unit Stays OFF Red LED Keeps flashing (1) Green LED Is the remote controller covering multiple units? Note (1) With the separate power supplies for indoor / outdoor units, the outdoor unit green LED may flash in some…

Outdoor unit

Indoor unit Red LED Stays OFF or Lights continuously Red LED Stays OFF Green LED Stays OFF or Lights continuously Green LED Keeps flashing Power supply reset YES Is it normalized? Unit is normal. (Runaway of indoor unit CPU due to noise, etc. Transient trouble) NO Defective indoor unit PCB Replace.…

Error display : E 7 Red LED Green LED [Detective Return air thermistor] Indoor unit 1 time flash Keeps flashing Red LED Green LED Is the return air thermistor connector connection OK? Outdoor unit Stays OFF Keeps flashing Is the return air thermistor characteristics OK or is there a broken wire? YES…

Service [Control of 1 remote controller VS multiple units Excessive number of indoor units (more than 17 units)] Error display : E 10 Red LED Green LED Indoor unit Stays OFF Keeps flashing Are more than 17 units connected to a remote controller? Red LED Green LED YES Outdoor unit Stays OFF Keeps…

Error display : E 16

Red LED Green LED [Indoor unit fan motor anomaly] (FDTA112, FDTA140, FDKA28 ~ 45 only) Indoor unit 1 time flash Keeps flashing Red LED Green LED Outdoor unit Stays OFF Keeps flashing Only case of FDT112, 140 type Anomalous data check with remote controller After check reset, fan runs on weak. NO…

 Only case of FDK28~45 type

After check reset, fan runs on weak. Anomalous data check with remote controller NO Fan ON ? Check the circumstances. YES 3 (black) is GND. Is the voltage DC 280 between CNM 1 and 3 (red – black)? NO Replace the indoor unit’s board. NO Was it reproduced? YES YES YES 3 (black) is GND. Is the voltage…

Error Diagnosis Procedures at the Outdoor Unit Side

Parts No. Model PCB505A042NC PCB505A042MB FDCA140HKXEN4 FDCA224, 280, 335HKXE4 PCB505A042MD FDCA400, 450, 504, 560, 615, 680HKXE4, FDCP335HKXE4-K Heat Heat Heat Heat Low-pressure sensor exchanger 4 exchanger 3 exchanger 2 exchanger 1 Cooling time Demand Communication Under dome Silent Two…

Name

ON SW4-6 SW4-5 OFF _ SW4-7 ON OFF ON OFF ON OFF Function Demand change (Compressor Capacity) 0% Demand change (Compressor Capacity) 40% Demand change (Compressor Capacity) 60% Demand change (Compressor Capacity) 80% Address setup of master / slave unit-slave Address setup of master / slave…

Model change over switch (SW4)

FDCA224, 280, 335HKXE4

TBX

normal if it flashes. Please make sure the CNI1 connector when it is not lighting. CNP1 Service Note (1) 7 segments display the operating frequency etc. by setting SW8 and 9. (Refer to 410 page ) H EEV EEV C CNT2 Blue Red White CNI2 R T LED2 LED1 Green Red DC280V P1 if it flashes. (Green) * LED2 The…

FM02

P3 N CNA1 Tr CNX1 F (5A) Blue White Red CNM1 CNK CNZ1 CNT1 CNT2 CNK CNZ1 CNT1 CNT2 LED1 LED2 LED3 Red Green Green normal if it flashes. · Please make sure the CNI1 connector when it is not lighting. 1 2 CNP1 Noise filter To So Ro Diode module G AC2 AC3 LED2 LED1 Green Red -6 is normal if it flashes.…

CNEEV2

EEV H2 CNEEV1 EEV H1 normal if it flashes. · Please make sure the CNI1 connector when it is not lighting. CNP1 1 2 Service Note (1) 7 segments displays the operating frequency etc. by setting SW8 and 9. (Refer to 472 page ) EEV SC CNEEV3 CNK CNZ1 CNT1 CNT2 CNK CNZ1 CNT1 CNT2 Electronic expansion…

1 Service Check procedure depending on indication lamps (For the outdoor unit) Error display : E 3 [Error on the outdoor unit signal wire] (Detected during operation only) Power supply check between L1 ~ N or terminal block Indoor unit Red LED 2 time flash Green LED Keeps flashing NO Power not…

Error display : E 5

Red LED Green LED [Outdoor unit signal wire error, power supply error] Indoor unit 2 time flash Keeps flashing (1) Did turn off the power of outdoor unit during operatioon? Outdoor unit Red LED Stays OFF Green LED Stays OFF YES Power supply ON NO • Blown fuse? • Broken or loose wire at L1, L2 or N…

Error display : E 30

[Connection error indoor and outdoor unit] 7-segment display : E 30 Red LED Green LED Indoor unit Stays OFF Keeps flashing Connection of indoor and outdoor unit OK? Red LED Green LED NO Outdoor unit 1 time flash Keeps flashing Repair YES Defective outdoor unit PCB Replacement 4 Error display : E 31…

Troubleshooting Error display : E 35 [Air-conditioning overload operating] [Only FDCA140 and HKXE4] Outdoor Red·LED Turning off Continuously Green·LED flashing Is the characteristic of the sensor of the outdoor heat exchanger normal YES Flashing once Continuously Green·LED flashing Red·LED Check the…

Error display : E 37

[Defective outdoor unit heat exchanger and sub-cooling coil thermistor] 7-segment display : E 37-1 E 37-2 E 37-3 E 37-4 E 37-5 E 37-6 Is the outdoor unit heat exchanger and sub-cooling coil themistor connector OK? Red LED Green LED Indoor unit Stays OFF Keeps flashing Red LED Green LED Note (1)…

Troubleshooting Error display : E 39 [Defective discharge pipe thermistor] 7-segment display : E 39-1 E 39-2 Outdoor unit 1 time flash (1) Red LED Keeps flashing Green LED Indoor unit Stays OFF Keeps flashing Red LED Green LED Note (1) Single flashing of outdoor unit LED indicates Tho-D1 (E39…

Service Error display : E 41 [Power transistor overheating] 7-segment display : E 41-1 E 41-2 Red LED Green LED Outdoor unit 1 time flash (1) Red LED Keeps flashing Green LED Indoor unit Stays OFF Keeps flashing Note (1) Single flashing of outdoor unit LED indicates power transistor (CM1) overheat…

Error display : E 42

[Current cut] 7-segment display : E 42-1 E 42-2 Red LED Green LED Indoor unit Stays OFF Keeps flashing Outdoor unit 1 time flash (1) Red LED Keeps flashing Green LED Note (1) Single flashing of outdoor unit LED indicates current cut (CM1) and double flashing indicates current cut (CM2). Is the power…

Service Error display : E 43 [Excessive number of indoor units connected] 7-segment display : E 43 Indoor unit Stays OFF Keeps flashing Red LED Green LED Red LED Green LED (1) Doesn't the number of indoor unit connected exceed the specified value? YES Outdoor unit 1 time flash Keeps flashing Repair…

Troubleshooting Error display : E 46 7-segment display : — Red LED Green LED [ Automatic address setting and remote controller address setting coexstents in the same network Indoor unit Stays OFF Keeps flashing Red LED Green LED Are automatic address and remote controller address coexist in on the…

Service Error display : E 49 [Low pressure anomaly] 7-segment display : E 49 Indoor unit Stays OFF Keeps flashing Red LED Green LED Outdoor unit 1 time flash Red LED Keeps flashing Green LED Is the connection of the low pressure sensor connector OK? NO Correction YES Does the pressure (actual…

Troubleshooting Error display : E 54 [Defective low pressure and high pressure sensor] 7-segment display : E 54-1 E 54-2 Red LED Green LED Indoor unit Stays OFF Keeps flashing Outdoor unit 1 time flash (1) Red LED Keeps flashing Green LED Note (1) Flashing once when the low-pressure pressure sensor…

Service Error display : E 60 [Compressor rotor position detection error] 7-segment display : E 60-1 E 60-2 Indoor unit Stays OFF Keeps flashing Red LED Green LED Red LED Green LED Outdoor unit 1 time flash (2) Keeps flashing Notes (1) Check if the power supply system is normal. (2) Single flashing…

Checking the power transistor module (including the drive circuit)

Is there any breakage or burn damage in the power transistor module? NO YES Is there a short circuit between the power transistor module terminals? *1 NO YES Compressor operation Is the compressor current inter-phase balance good? YES Normal NO There is a difference of 10% or greater in the current…

Method for judging operating condition

a) Operate it with the test run switch on the outdoor control board. SW5-1 ON SW5-2 OFF ON test run for heating test run for cooling OFF Normal and the test run ends b) Make sure the flashing status of 6 LEDs c) Judges according to the flashing status of LED Flashing status of 6 LEDs flash 6 LEDs…

Troubleshooting Inspection Method When There Is No Error Display Louver motor does not operate Inspect at the indoor unit side. Does the louver operate at power on? Operate more than 1 min. later NO NO Is LM wire broken? YES YES Normal Turn off and back on again the power and check the motion of LS…

Four way valve does not switch during heating operation

Is the voltage between connector CNN1 1 and 2 AC 380 / 415 V? YES Defective 20S Replacement NO Defective outdoor unit PCB Replacement Check method for operation of the indoor electronic expansion valve of indoor unit Make sure the indoor unit controller → the output of expansion valve according to…

Functions of the Control Circuit Board of the Outdoor Unit 2.6.1 Control cabinet of the outdoor unit KX4 series (5 - 12 HP) Model: FDCA335HKXE4 Control cabinet of the outdoor unit KX4 series (5 - 12 HP) Unit number: Picture No. 1 Description: Outdoor unit control cabinet Special notes: External…

Service Control cabinet of the outdoor unit KX4 series (12 - 24 HP) Model: FDCA335HKXE4-K Control cabinet of the outdoor unit KX4 series (12 - 24 HP) Unit number: Picture No. 1 Description: Outdoor unit control cabinet Special notes: External operation Forced cooling and heating Repair Service…

1. Safety Solutions for Refrigerant Leakage

When an air-conditioner is installed in the room, it should be ensured that the critical concentration of the indoor refrigerant gas won't be exceeded in case of refrigerant leakage. R410A is used by the air-conditioner. Although the refrigerant itself is non-toxic, incombustible and safe, the size…

(iii) Locations having inner walls but no effective openings

Calculate the refrigerant concentration based on results obtained through Step and . [Calculation method] Total refrigerant charging amount for the refrigerant equipment (kg) Cubage of the smallest room where a machine containing refrigerant is installed (m3) = Refrigerant concentration (kg/m3) In…

(4) Special attentions should be paid to piping connections inside residential areas. The constructions should be performed in strict accordance with JIS specifications and a complete air-tightness test should be performed after the constructions are completed. In addition, anti-seismic measures…

Total refrigerant charging amount

for the refrigerant equipment Room cubage A range of 0.3kg/m3 (Installation of mechanical ventilation device is not required) n tio tila e n Ve olum v Room cubage (m3) If the range shown as oblique lines is entered, effective ventilation openings should be set up to increase the room cubage or…

Appendix Flowchart of Countermeasures Against Refrigerant Leakage Select the air-conditioning system. * See Figure 4 for the range of the oblique lines Select OK (A mechanical ventilation device is not required) Total refrigerant charging amount in the system / room cubage See Figure 4. Set up…

Check on use limitations related with equipment designs

• The check is chiefly done by listening and investigation of actual conditions, and the correction treatment is proposed to the trader. No. The number in which indoor unit can be connected Capacity in which indoor unit can be connected Is the driving always under the state of the capacities…

KX4 Equipment Design Check Sheet

Model: User: No. Sequence Classificanumtion ber Items to be checked Standard Is the load calculation made under both cooling and heating conditions? Models matching with higher load must be selected Is the selection of the air-conditioner based on the various corrected capacities? Corrections based…

Check related with construction

• The check is chiefly done, and then the correction is proposed to the trader . No. Item Reference Capacity described in material (excessive to improper Capacity of breaker for protection) power supply With the leak breaker (INV unit corresponding to INV) Use terminals for the Local wiring terminal…

KX4 Construction Check Sheet

Model : User : No. 1 Indoor / Outdoor Sequence Classificanumtion ber Items to be checked Standard Is the installation space for indoor and outdoor units within the specified limit? • Ventilation space • Indoor unit: dimension above the ceiling Check whether the outdoor unit has any index of air…

Standard 19 Are the materials of refrigerant piping qualified? • Phosphor deoxidised seamless tube 20 Do the dimensions of the refrigerant piping depend on the capacity of the indoor unit? • Dimensions: based on the capacity of the indoor units 21 Water return pipes must not be installed in the…

Air-tightness test

Sequence Classificanumtion ber 41 Items to be checked 45 Vacuuming & refrigerant enclosure System 44 46 Standard Result Has an air-tightness test been performed? • Pressure: R22=2.94MPa, R407C=3.23MPa • Gas used: nitrogen • Standard: the pressure must keep constant for 24 hours. (Temperature…

KX4 Test Run Check Sheet

Model : User : No. Items to be checked Standard Has any confirmation been made on whether there is any crossing of the signal wire and the power cord? • The resistance should be measured at the terminal block (A, B) of the signal wire and the measured value should be close to the one calculated with…

MEMO

700 Appendix

Кондиционеры Mitsubishi Heavy Industries серии SRK-HJ. Полный сервис-мануал

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