Mitsubishi Electric LGH-F300RX5-E1 Handbook
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Mitsubishi Electric LGH-F300RX5-E1 Handbook

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LOSSNAY
HANDBOOK
MODELS
LGH-F300RX
LGH-F470RX
LGH-F600RX
LGH-F1200RX
Warning:
Repair work must be performed by the manufacturer, its service
agent or a similarly qualified person in order to avoid hazards.
-E1
5
-E1
5
-E1
5
-E1
5
March 2019
Name plate
Name plate
No. U194-C

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Summary of Contents for Mitsubishi Electric LGH-F300RX5-E1

  • Page 1 March 2019 No. U194-C LOSSNAY HANDBOOK MODELS Name plate LGH-F300RX LGH-F470RX LGH-F600RX LGH-F1200RX Name plate Warning: Repair work must be performed by the manufacturer, its service agent or a similarly qualified person in order to avoid hazards.

  • Page 2: Table Of Contents

    Contents 1. Safety precautions ............... 3 2. Specifications ................4-5 3. Outside dimensions ..............6-9 4. Electrical wiring diagrams ............. 10-12 5. Circuit board diagram ..............13 6. Fundamentals of operation ........... 14-36 7. Troubleshooting ..............37-55 8. Overhauling procedures ............56-58 9.

  • Page 3: Safety Precautions

    1. Safety precautions Read the following precautions thoroughly before the maintenance, and then inspect and repair the product in a safe manner. The types and levels of danger that may arise if the product is handled incorrectly are described with the warning symbols shown below.

  • Page 4: Specifications

    2. Specifications ─ 4 ─...
  • Page 5 ─ 5 ─...

  • Page 6: Outside Dimensions

    3. Outside dimensions LGH-F300RX Unit: Inch ( mm ) ─ 6 ─...
  • Page 7 LGH-F470RX Unit: Inch ( mm ) ─ 7 ─...
  • Page 8 LGH-F600RX Unit: Inch ( mm ) ─ 8 ─...
  • Page 9 LGH-F1200RX Unit: Inch ( mm ) ─ 9 ─...

  • Page 10: Electrical Wiring Diagrams

    4. Electrical wiring diagrams LGH-F300RX (High/Low/Extra-Low/Bypass switch) ─ 10 ─...
  • Page 11 LGH-F470RX -E1, LGH-F600RX (High/Low/Extra-Low/Bypass switch) ─ 11 ─...
  • Page 12 LGH-F1200RX ─ 12 ─...

  • Page 13: Circuit Board Diagram

    5. Circuit board diagram Circuit board diagram and check points Common for SA * Fan drive output voltage: Each 208 to 230 V AC fan drive (TAB5) EA fan drive SA fan drive Transformer (CN9) (CN10) primary (input) Power supply Common for EA 208 to 230 V AC (CN1)

  • Page 14: Fundamentals Of Operation

    6. Fundamentals of operation Description of the circuit operation ( 1 ) System Configuration Lossnay operates through the following system. System System Diagram Features Classification Details Basic 1 Lossnay • One remote controller oper- Lossnay System unit ates one Lossnay unit. 1 Remote Remote Transmission cable...
  • Page 15 System System Diagram Features Classification Details Systems Mitsubishi • Lossnay can be interlocked When PZ-60DR-E is used inter- City Multi with a maximum of 16 air Lossnay City Multi locked air condi- conditioning units. Indoor unit Transmission M-NET Remote with tioner •...
  • Page 16 Remote controller list 1 Remote controllers Rough Classification Fine Classification Product For Lossnay independent control Lossnay remote controller MA remote controller MA remote control- Wireless remote controller M-NET For City Multi air con- Compact remote controller ditioner ME remote controller M-NET remote controller Compact remote controller...
  • Page 17 ( 3 ) Fan control 1 Fan speed control for each system The control indicated below can be performed according to the system that is paired. Up to two of the Lossnay remote controllers PZ-60DR-E can be used in the same group, but they cannot be used together with a different remote controller.
  • Page 18 2 Fan speed control by function setting The following fan speed control can be set with PZ-60DR-E or the function selection switch (SW2) on the Lossnay circuit board. Setting Method PZ-60DR-E PZ-60DR-E Not Used Function Details ( Remote controller ( Function selec- function selection ) tion switch ) Extra High...
  • Page 19 Setting Method PZ-60DR-E PZ-60DR-E Not Used Function Details ( Remote controller ( Function selec- function selection ) tion switch ) Fan motor When TM4 9, 0 output settings, and TM3 6, 7 output set- TM4 9, 0 output setting delay stop tings are set to operation monitor with delay function 1 or 2, “Operation monitor with delay ( Operation...
  • Page 20 2 Damper control for each system The control indicated below can be performed according to the system that is paired. Up to two of the Lossnay remote controllers PZ-60DR-E can be used in the same group, but they cannot be used together with a different remote controller. When using two re- Caution mote controllers, be sure to use the same model of the remote controller.
  • Page 21 3 Bypass ventilation prohibited When the conditions described below are applicable, the ventilation mode will be fixed at Lossnay ventila- tion. When bypass ventilation has been set from the remote controller or the system controller, damper operation will be set to Lossnay ventilation, even though bypass ventilation is displayed on the ventilation mode display.
  • Page 22 b. When there is no interlocking with Mr. Slim and City Multi indoor units Pattern 1. Normal ventilation mode When PZ-60DR-E is used, operation will be at the setting of automatic ventilation adjustment pattern “1” of the remote controller function selection. When PZ-60DR-E is not used, operation will be at the OFF setting of function selection switch ( SW2-7 ) on the Lossnay circuit board.
  • Page 23 6 Ventilation mode change recommendation (RECOMMENDED, VENTILATION MODE) display When PZ-60DR-E is used and the ventilation mode is set to Lossnay ventilation or bypass ventilation, “RECOMMENDED” and “VENTILATION MODE” may be displayed alternately (for 10 minutes maximum). This function informs the user of the suitable ventilation mode according to the automatic ventilation algo- rithm.
  • Page 24 2 Interlock mode Lossnay can set the following four types of interlock modes for the start/stop signal from the external device. Setting Method Remote controller Interlock Other than pulse signal PZ-60DR-E Pulse signal input is not used mode input ( Remote controller ( Function selec- function selection ) *1 tion switch )
  • Page 25 ( 6 ) External input/output terminals on the Lossnay circuit board Located on the Lossnay circuit board are terminals for the external output of the Lossnay operating condition, and input terminals for external switching of the Lossnay fan speed and ventilation mode. 1 Output terminals The function and contact rating of each output terminal are described below.
  • Page 26 [1] For operating on High ( Extra High ) fan speed via external input Usually, ventilation is performed at Low/Extra Low fan speed, and there is automatic switching to High ( Extra High ) fan speed when dirty indoor air is detected by a CO sensor, etc.
  • Page 27 b. Bypass ventilation switching input This is used to force a changeover of the ventilation mode to bypass ventilation by means of the input of an external switch, etc. During the input of bypass ventilation switching, the ventilation mode display of the remote Operation controller and the system controller will change to bypass ventilation.
  • Page 28 ( 8 ) Trial operation function This function operates Lossnay without the need of a device ( such as a remote controller, or an external de- vice ) to control Lossnay. This function permits verification of the connection condition of the AC line and wiring when Lossnay has been set up.
  • Page 29 Night Purge mode is active; no operation 1:00 A.M. The outdoor temperature (OA) setting can be selected either 62.6°F (17°C) or Outdoor 82.4°F (28°C) by using Dip-Switch (SW2-7) in the Lossnay control box. temperature 62.6°F (17°C)/ Refer to the remote controller installation manual for more information. 82.4°F (28°C) or more (within 24 hours) Temperature monitoring...
  • Page 30 ( 10 ) Setting of function selection switches ( SW1, 2, 5 and 6 ) The associated switches are as listed below. * This function can also be set from PZ-60DR-E. When the function has been switched from the remote con- troller later on, the system will operate according to the setting of the remote controller.
  • Page 31 Type Name Specification Cold region operation at out- ON : When the indoor dew point is less than 41°F (6°C) door air temperature of 5°F (Indoor condition: 68°F (20°C) 40%RH) (-15°C) or lower OFF: When the indoor dew point is less than 53.6°F (12°C) (Indoor condition: 75.2°F (24°C) 50%RH) ( Factory setting ) Note 3 Type setting...
  • Page 32 1 Function selection mode The following functions can be changed with PZ-60DR-E function selection mode. Please change the set- tings as needed. Intermediate Dot matrix Selection Major items Function Notes items ( Names ) display display Change English display Dot matrix display characters English ( Factory setting ) Language...
  • Page 33 *2: When the 24-hour ventilation setting is ON, “24HR VENTILATION” is displayed during Extra Low fan speed operation. When the pulse input setting is ON, the 24-hour ventilation setting is not permitted. When two remote controllers are used, the 24-hour ventilation setting is not permitted from the “Sub” remote controller.
  • Page 34 Intermediate Dot matrix Selection Major items Function Notes items ( Names ) display display ON/OFF interlocked ( Factory setting ) Interlocking Interlock mode onoF item setting selection ON interlocked OFF interlocked External input signal priority Pulse input set- Without pulse input ( Factory setting ) ting With pulse input Without delay operation ( Factory setting )
  • Page 35 Total operation hours, Maintenance items display Dot display ON/OFF button button CLEAR button MENU (MONITOR/SET) button Back button Intermediate Dot matrix Major items Function Notes items ( Names ) display Total opera- Total operation Displays the total Lossnay operation hours. ( The 10,000 and 100,000 hours digits are displayed in tion hours hours display...
  • Page 36 ( 12 ) Operation sequence flowchart Power On System with System without Selection Lossnay remote controller Lossnay remote controller switch input Is there a Lossnay remote controller? Data input Data input Temperature data Temperature data (Outdoor air temperature/Indoor (Outdoor air temperature/Indoor temperature) temperature) Diverse error detection...

  • Page 37: Troubleshooting

    7. Troubleshooting Work precautions • When removing or touching a transformer, printed circuit board or other parts, make sure to turn off the power supply isolator. • When removing the circuit board, always hold it at both ends and remove carefully so as not to apply force to the surface mounted parts.
  • Page 38 7-2 Checklist ( 1 ) Troubleshooting 1: The system will not start properly. Initialization checklist from installation to operation ( Table 1-1 ) After checking the system, verify the checkpoints listed below. Power supply ( Table 1-1-1 ) Checkpoint Action Is the main power supply on? Turn on the main power supply.
  • Page 39 Signal cables from external devices ( Table 1-1-3 ) Check the following checkpoints when Lossnay is connected with level signal/pulse signal output devices and Mr. Slim units. Checkpoint Action Do the transmission cables meet regulations? ( Type, diameter ) Use specified cables. Is the signal cable wired at least 2 in.
  • Page 40 Signal cables to external devices ( Table 1-1-4 ) Check the following checkpoints when outputting the operation monitor, air supply fan operation monitor, mal- function monitor, bypass operation monitor, and operation monitor with delay function. Checkpoint Action Do the signal cables meet regulations? ( Type, diameter ) Use specified cables.
  • Page 41 System checklist ( Table 1-2 ) When using PZ-60DR-E or interlocking with external devices ( Table 1-2-1 ) Error Cause Action • Remote controller  Power is not supplied to the Lossnay, or power  Check the power supply to the Lossnay.
  • Page 42 Error Cause Action  The interlock mode is set to “ ON Interlocked ” Interlock operation  Check the Interlock mode setting or “ OFF Interlocked ” with the remote controller with the remote controller ( PZ- with external device ( PZ-60DR-E ) .
  • Page 43 Error Cause Action Group settings for  Power is not supplied to Lossnay, or power  Check the power supply to Lossnay Lossnay cannot that does not follow specifications is used. and perform the registration again. be made by using ...
  • Page 44 ( 2 ) Troubleshooting 2 An error code displays on the remote controller. The LED on the Lossnay circuit board is blinking or lit up. An error code displayed on the remote controller ( PZ-60DR-E ) or the M-NET controller, and blinking or illumina- tion of LED1 ( green ) or LED2 ( red ) on the circuit board shows the type of an error.
  • Page 45 Error code LED1 LED2 Error Cause Action ( green ) ( red ) LC 3602 Damper re- Damper board operation is not Remove the rod, and check SLC 3602 blinks lated error correct. whether the damper board can be moved manually. Connectors for the damper unit Check the connection of the lead wire are not correctly connected.
  • Page 46 Checklist of error codes displayed on PZ-60DR-E ( when using M-NET ) , M-NET controllers, and LED displays ( Table 2-2 ) Error code LED1 LED2 Error Cause Action ( green ) ( red ) 6600 Multiple There is another unit with the same Check the addresses of devices in blinks address error...
  • Page 47 LED1 LED2 Error code Error Cause Action ( green ) ( red ) 6603 Transmission Power is supplied to the same Adjust the wiring of the power sup- blinks cable error transmission cable from two or ply unit. more power supply units. The power supply unit is connect- ed to the TB3 side of the power supply expansion unit.
  • Page 48 ( 3 ) Troubleshooting 3: The remote controller operation is disabled or irregular. Checklist for PZ-60DR-E ( Table 3-1 ) Error Cause Action 1 Nothing displays on the  Transmission cable is connected to the  Check the transmission cable con- LCD.
  • Page 49 Error Cause Action 7 The ventilation mode  The bypass ventilation switching external  Check the bypass ventilation cannot be switched with input (CN16) is set to ON. switching input (CN16). (Refer to the remote controller. page 27) 8 When the main power ...
  • Page 50 ( 4 ) Troubleshooting 4: The Lossnay operation is disabled or irregular. Lossnay checklist ( Table 4 ) Error Cause Action 1 The fan does not oper- Connectors for the fan or connectors for the Check the lead wire connectors ate.
  • Page 51 Error Cause Action When PZ-60DR-E is used, “ RECOVERY 4 Lossnay operates when Check the power supply ON/ the main power is turned SETTING ” is set to “ on ” or “ AUTo ” with the OFF/AUTO setting with the PZ- 60DR-E function selection.
  • Page 52 Error Cause Action 8 The damper board does The outdoor air temperature is 46.4°F (8°C) Check the outdoor air tempera- not operate. or lower. ture. The bypass ventilation switching external Check the bypass ventilation input ( CN16 ) is set to ON. switching input ( CN16 ) .
  • Page 53 It is normal in the following cases. Error Cause Reference 1 Immediately after turning on LED1 blinks at 1 second intervals during starting operation (maximum Page the main power, LED1 (green) of 45 seconds). on the Lossnay circuit board blinks. 2 LED1 (green) on the Lossnay LED1 will be lit during the delay operation when the delay operation Page...
  • Page 54 Error Cause Reference 12 When PZ-60DR-E is used, Page In the following circumstances “ (“Locked” indicator)” is dis- “ (“Locked” indicator)” played, and the applicable function button cannot be operated. is displayed, and the remote • When the operation lock is enabled (Buttons other than the “ON/ controller cannot be operated.
  • Page 55 Temperatures and thermistor resistance table Resistance Resistance Resistance Resistance Resistance Temperature Temperature Temperature Temperature Temperature value value value value value ( kΩ ) ( kΩ ) ( kΩ ) ( kΩ ) ( kΩ ) (°F) (°C) (°F) (°C) (°F) (°C) (°F) (°C)

  • Page 56: Overhauling Procedures

    8. Overhauling procedures Work precautions • When touching the electric components such as circuit boards and fan motors, do not touch the components for more than 5 minutes after power-off, and then start working. • Before replacing parts, repair troubled sections according to the instructions described in the troubleshoot- ing.
  • Page 57 3 Unscrew the fixing screws (two special (spl) screws M4, indicated by ), and remove the core guides (left (L) and right (R)). Core guide 4 Slide the connector covers (with the connector) toward the Lossnay core side, and then take them off from the unit.
  • Page 58 6 Take off the separators. Separator 7 Unscrew the screws (four PTT screws 5×10, indicated Motor ( for supply air ) by ) for the motor fix plate (SA side). (Remove the EA side motor in the same way.) Motor fi x plate When reassembling Reassemble the unit in the reverse order of disassembly.

  • Page 59: Parts Catalog

    9. Parts catalog Please note the following when using the parts catalog. 1. When ordering parts, always indicate the part number, part name, and the number of parts required. 2. It may take time for you to receive the parts. Make an inquiry about a rush order. 3.

  • Page 60: Lgh-F300Rx 5 -E1

    LGH-F300RX 16 pcs. 6 pcs. shows accessory parts. ─ 60 ─ LGH-F300RX...
  • Page 61 LGH-F300RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Maintenance cover W50 004 488 Special screw M4 W00 000 101 Core guide L W50 004 713 Filter stopper W50 016 710 PT screw 6x12 W00 000 060 Hanger set...
  • Page 62 Air supply fan assembly Air exhaust fan assembly ─ 62 ─ LGH-F300RX...
  • Page 63 LGH-F300RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 21 Special nut (M8) W00 000 121 Left-handed 22 Tab washer W00 000 134 23 Centrifugal fan W50 003 480  φ 220 24 Fan base W50 003 713...
  • Page 64 shows accessory parts. ─ 64 ─ LGH-F300RX...
  • Page 65 LGH-F300RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 57 Rod W50 004 156 58 PT screw 4x8 W00 000 050 59 Side plate W50 004 707 60 Special screw 4x3.5 W00 000 097 61 Wiring diagram W50 004 358...

  • Page 66: Lgh-F470Rx 5 -E1

    LGH-F470RX 16 pcs. 6 pcs. shows accessory parts. ─ 66 ─ LGH-F470RX...
  • Page 67 LGH-F470RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Maintenance cover W50 004 489 Special screw M4 W00 000 101 Core guide L W50 004 714 Filter stopper W50 016 711 PTT screw 4x8 W00 000 009 Cover W50 003 708 Lossnay core W50 004 720...
  • Page 68 Air exhaust fan assembly Air supply fan assembly ─ 68 ─ LGH-F470RX...
  • Page 69 LGH-F470RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 21 Special nut (M12) W00 000 117 Left-handed 22 Washer (12) W00 000 123 23 Centrifugal fan W50 004 480  φ 245 24 Fan base W50 003 715 25 Inlet ring W50 004 725 26 PTT screw 5x10...
  • Page 70 shows accessory parts. ─ 70 ─ LGH-F470RX...
  • Page 71 LGH-F470RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 57 Rod W50 004 152 58 PT screw 4x8 W00 000 050 59 Side plate W50 004 707 60 Special screw 4x3.5 W00 000 097 61 Wiring diagram W50 004 358 62 Control cover W50 004 705 63 PP screw 4x8...

  • Page 72: Lgh-F600Rx 5 -E1

    LGH-F600RX 16 pcs. 6 pcs. shows accessory parts. ─ 72 ─ LGH-F600RX...
  • Page 73 LGH-F600RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Maintenance cover W50 004 489 Special screw M4 W00 000 101 Core guide L W50 004 715 Filter stopper W50 016 711 PTT screw 4x8 W00 000 009 Cover W50 003 708 Lossnay core W50 004 721...
  • Page 74 Air exhaust fan assembly Air supply fan assembly ─ 74 ─ LGH-F600RX...
  • Page 75 LGH-F600RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 21 Special nut (M12) W00 000 117 Left-handed 22 Washer (12) W00 000 123 23 Centrifugal fan W50 004 480  φ 245 24 Fan base W50 003 715 25 Inlet ring W50 004 725 26 PTT screw 5x10...
  • Page 76 shows accessory parts. ─ 76 ─ LGH-F600RX...
  • Page 77 LGH-F600RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 57 Rod W50 004 152 58 PT screw 4x8 W00 000 050 59 Side plate W50 004 707 60 Special screw 4x3.5 W00 000 097 61 Wiring diagram W50 004 358 62 Control cover W50 004 705 63 PP screw 4x8...

  • Page 78: Lgh-F1200Rx 5 -E1

    LGH-F1200RX 16 pcs. 6 pcs. shows accessory parts. ─ 78 ─ LGH-F1200RX...
  • Page 79 LGH-F1200RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Maintenance cover W50 004 489 Special screw M4 W00 000 101 Core guide L W50 004 715 Filter stopper W50 016 711 PTT screw 4x8 W00 000 009 Flange W50 004 704 Hanger W50 001 382...
  • Page 80 Air exhaust fan assembly Air supply fan assembly ─ 80 ─ LGH-F1200RX...
  • Page 81 LGH-F1200RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 21 Special nut (M12) W00 000 117 Left-handed 22 Washer (12) W00 000 123 23 Centrifugal fan W50 004 480  φ 245 24 Fan base W50 003 715 25 Inlet ring W50 004 725 26 PTT screw 5x10...
  • Page 82 shows accessory parts. ─ 82 ─ LGH-F1200RX...
  • Page 83 LGH-F1200RX5-E1 Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 53 Bush W00 000 277 56 Rod W50 004 150 57 Wiring diagram W50 004 359 58 PT screw 4x8 W00 000 050 59 Control cover W50 004 712 60 Special screw 4x10 W00 000 096 61 Side plate R...

This manual is also suitable for:

Lgh-f470rx5-e1Lgh-f600rx5-e1Lgh-f1200rx5-e1

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