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Mitsubishi Electric LGH-F300RX3-E Handbook

Lossnay energy recover ventilator
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LOSSNAY
HANDBOOK
MODELS
LGH-F300RX
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.
-E
3
-E
3
-E
3
Nameplate
Nameplate
April 2018
No. U112-B

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Summary of Contents for Mitsubishi Electric LGH-F300RX3-E

  • Page 1 April 2018 No. U112-B LOSSNAY HANDBOOK MODELS Nameplate LGH-F300RX LGH-F600RX LGH-F1200RX Nameplate 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 Safety precautions ................3 1. Specifications ............... 4-5 2. Dimensions ................5-6 3. Wiring diagrams ..............7-8 4. Troubleshooting ..............9-22 4-1 Service Flow..............9-10 4-2 Items to Check............11-21 4-3 Circuit Test Point............. 22 5. Overhaul procedures............23-28 5-1 Blower Parts .............. 23-25 5-2 Damper Movement Motor Part (All units available)...

  • Page 3: Safety Precautions

    Safety precautions GPlease be sure to read the following safety precautions thoroughly before commencing with the maintenance work, and conduct the inspection and repair of the product in a safe manner. GThe types and levels of danger that may arise if the product is handled incorrectly are described by using the warning symbols shown below.

  • Page 4: Specifications

    1. Specifications — 4 —...

  • Page 5: Dimensions

    2. Dimensions LGH-F300RX -E,LGH-F600RX Unit (inch) — 5 —...
  • Page 6 LGH-F1200RX Unit (inch) — 6 —...

  • Page 7: Wiring Diagrams

    3. Wiring diagrams LGH-F300RX -E,LGH-F600RX * Connect the wires shown as dotted lines. * Be sure to connect the grounding wire. * Breaker should be provided by the customer. Symbol explanation Relay contact (For mal- Motor for exhaust fan Motor for supply fan function monitor output) Capacitor CN1:...
  • Page 8 LGH-F1200RX * Connect the wires shown as dotted lines. * Be sure to connect the grounding wire. * Breaker should be provided by the customer. Symbol explanation Motor for exhaust fan TM1: Terminal block (Power supply) CN1: Connector (Transformer CN32: Connector (Remote control primary) selection) Motor for supply fan...

  • Page 9: Troubleshooting

    4. Troubleshooting 4-1 Service Flow Confirmation items Trouble Mode 1 The system will not start properly. 1 Condition of trouble – remote controller dis- play, etc. • Check the initialization checklist from 2 Frequency of trouble – date of start of opera- installation to operation (table 1-1).
  • Page 10 Error List Cancellation measures Remote LED 1 LED 2 controller (green) (red) Error Measures taken Reset Stop Error item display Display Display monitor Change Error ↓ power by Lossnay error (No. of (No. of output address delete supply Start code blinks) blinks) Fan motor...

  • Page 11: Items To Check

    4-2 Items to Check (1)Trouble Mode 1: The system will not start properly. Initialization checklist from installation to operation (Table 1-1) After checking the system, check the points below up to operation. Checkpoint Do the capacity of the main power supply on/off unit and wiring span meet specification? Is the specified power supplied to the Lossnay power terminal (TM1)? Is the wiring length of the transmission cable within specifications? When using PZ-41SLB-E:...
  • Page 12 System checklist 1Use this checklist when using a PZ-41SLB-E or an external device (Table 1-2-1) Symptom Cause Corrective action « Power is not supplied to the Lossnay, or power « Check the power supply to the Remote controller display does not outside specifications is connected.
  • Page 13 2System checklist when using the M-NET (Table 1-2-2) Symptom Cause Corrective action « The Lossnay is not set for interlocked opera- « Check the Lossnay address, and Does not interlock with City Multi. (The Lossnay tion, or is set for interlocked operation at the set for an address corresponding cannot be operated by wrong address.
  • Page 14 Symptom Cause Corrective action 1 When using City Multi and Lossnay interlocked The power display “ ” system (connected to the indoor unit system) does not display when power is supplied to the « The transmission cable is not correctly con- «...
  • Page 15 1Checklist of error codes displayed on the PZ-41SLB and LED displays (Table 2-1) LED1 LED 2 Error code Symptom Cause Corrective action (green) (red) « When using multiple Lossnay units, the « Turn off the main power supply and set LC 6608 —...
  • Page 16 2Checklist of error codes displayed on the PZ-52SF-E, M-NET controllers, and LED displays (Table 2-2) LED1 LED 2 Error code Symptom Cause Corrective action (green) (red) « There is another unit with the same « Check the addresses of devices in 6600 —...
  • Page 17 (3)Trouble Mode 3: The remote controller does not operate or operates irregularly. 1Checklist for when using the PZ-41SLB-E (Table 3-1) Symptom Cause Corrective action « Transmission cable is connected to the wrong « Check the transmission cable Nothing displays on the LCD.
  • Page 18 Symptom Cause Corrective action « It is less than 10 minutes since the power was « After supplying power to the sys- Displays “HO” and does not start. supplied to the system. tem, HO blinks for a maximum of about 10 minutes. (This is not an error.) «...
  • Page 19 (4)Trouble Mode 4: The Lossnay does not operate or operates irregularly. 1Lossnay checklist (Table 4). Symptom Cause Corrective action « Connectors for the fan connection or connec- « Check the lead wire connectors The fan does not operate. The fan does not operate tors for the control circuit section connection and the control circuit section normally.
  • Page 20 Symptom Cause Corrective action « When the outdoor air temperature is 14°F or « This is no error. Supply air fan periodical- ly stops operating. less, operation stops after a fixed period of about 10 minutes to keep the Lossnay Core from freezing.
  • Page 21 2Temperaturers vs. thermistor resistance table Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance Temperature Resistance (°F) value (kΩ) (°F) value (kΩ) (°F) value (kΩ) (°F) value (kΩ) (°F) value (kΩ) 88.85 - ∞ 19.4 17.92 46.4 9.57 73.4 5.38 100.4 3.17 21.2 17.16...

  • Page 22: Circuit Test Point

    4-3 Circuit Test Point LED1 (green) • When blinking, there is an error with the Lossnay unit (number of blinks indicates the type of error). • Blinks at 1 second intervals when starting. • Lit during delayed start, normally off at other times. Exhaust fan operation unit (combined) Exhaust fan operation unit Fuse (6.3 A/250 V)

  • Page 23: Overhaul Procedures

    5. Overhaul procedures 5-1 Blower Parts 1Remove the cover fixing screw. 2Pull back the hinged clip. 2Open the door and lift off of the hinge brackets. LGH-F300RX -E,LGH-F600RX LGH-F1200RX Hinge Maintenance Cover Hinge Maintenance Cover Screw Screw 3Take hold of the handle and draw the Lossnay cores out from the unit.
  • Page 24 4After pulling out the Lossnay cores.Pull the air filters, Lossnay core Velcro located at the bottom left and right of the Lossnay cores, off the velcro that holds them in place. Air filters 5Remove screw from the core-guide,Remove core- guide. Core Guide 6Remove separator from the blower portion.

  • Page 25: Damper Movement Motor Part (All Units Available)

    7Remove screws from the motor base. Motor Base Motor 8Remove the pre-assembled blower. Pre-assembled Blower 5-2 Damper Movement Motor Part (All units available) 1Remove (2) screws out from the damper motor Damper Motor Cover cover. — 25 —...

  • Page 26: Circuit Board Part

    2Take the damper movement motor out of the cover. Damper Movement Motor 5-3 Circuit Board Part (1)LGH-F300RX -E,LGH-F600RX 1Remove (2) screws from the control cover and open the control cover. Control Cover Caution: When assembling again, should clamp same as right fig.
  • Page 27 2Remove (2) screws from capacitors. Capacitors 3Remove all harnesses connected to the circuit board. 4Take the circuit board out. Circuit Board (2)LGH-F1200RX 1Remove (2) screws from the control cover and open the control cover. Control Cover — 27 —...
  • Page 28 2Remove all harnesses connected to the circuit board. 3Take the circuit board out. Circuit Board — 28 —...

  • Page 29: Parts List

    6. Parts list Please note the following when using the parts list. 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 30: Lgh-F300Rx3-E

    LGH-F300RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety Flange R50 028 610 Hanger R50 476 380 PTT screw 5x10 H00 189 007 Hanger support R50 483 705 Hanger cover Y50 061 704 Maint. cover Y50 062 707...
  • Page 31 LGH-F300RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 31 Special nut (8) R50 331 067 Left-handed 32 Tab washer M34 398 077 33 Centrifugal fan R50 351 480 φ 220  34 Fan base R50 478 707...
  • Page 32 LGH-F300RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 51 Motor cover Y50 061 693 52 PTT screw 4x6 H00 312 007 53 Pull spring R50 069 156 54 Damper support R50 472 716 55 Special bush M31 234 089...
  • Page 33 55 56 59 60 61 73 74 75 76 77 — 33 —...

  • Page 34: Lgh-F600Rx3-E

    LGH-F600RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety PTT screw 4x12 H00 000 488 Flange R50 430 609 PTT screw 4x8 H00 000 487 Hanger R50 095 380 PT screw 6x12 H00 000 244 Maint. cover Y50 039 707 Core guide R50 219 381 Filter...
  • Page 35 LGH-F600RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 31 Special nut (M12) R50 218 067 Left-handed 32 Washer (12) K83 466 113 33 Centrifugal fan R50 479 480 φ 245  34 PT screw 6x20 H00 157 008 35 Spl washer (6) M34 043 080 36 Spacer...
  • Page 36 LGH-F600RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 51 Motor cover Y50 061 693 52 Pull spring R50 074 156 53 Damper support R50 473 715 54 Special bush M31 234 089 55 Damper R50 473 716 56 Damper motor Y50 061 260 AC220･240V...
  • Page 37 56 57 59 60 61 62 73 74 75 76 77 — 37 —...

  • Page 38: Lgh-F1200Rx3-E

    LGH-F1200RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety PTT screw 4x14 H00 000 333 Flange R50 220 607 Hinge R50 466 344 PTT screw 4x10 H00 000 332 Hanger R50 111 381 PT screw 6x12 H00 000 244 Maint.
  • Page 39 LGH-F1200RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 31 Special nut (M12) R50 218 067 Left-handed 32 Washer (12) K83 466 113 33 Centrifugal fan R50 479 480 φ 245  34 PT screw 6x20 H00 157 008 35 Spl washer (6) M34 043 080 36 Spacer...
  • Page 40 LGH-F1200RX3-E Critical Q'ty Name of part Parts No. Remarks pcs/unit safety 51 Motor cover Y50 061 693 52 Pull spring R50 074 156 53 Damper support R50 473 715 54 Special bush M31 234 089 55 Damper R50 473 716 56 Damper motor Y50 061 260 AC220･240V...
  • Page 41 54 55 56 57 58 59 60 61 61 61 87 88 66 67 68 69 70 71 73 74 83 84 85 77 78 79 80 81 82 — 41 —...

This manual is also suitable for:

Lgh-f600rx3-eLgh-f1200rx3-e

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