Mitsubishi LGH 15-200RX3, U-042 Service Manual

LOSSNAY

HAND BOOK

(For EUROPE and OTHERS)

Issued January 2002 No. U-042

Model:

LGH-15RX

3-E

LGH-25RX

3-E

LGH-35RX

3

-E

LGH-50RX

3-E

LGH-80RX3-E LGH-100RX

3-E

LGH-100RX

3-E-60

LGH-150RX

3-E

LGH-200RX3-E LGH-200RX

3-E-60

Notice: The term of validity is for a year from the issued date.

MITSUBISHI ELECTRIC CORPORATION

Model name

The picture is shown LGH-100RX3-E

FOR DEALERS

Safety precautions

● Please take a time to read the following safety precautions before commencing with the maintenance work.

● They will help to maintain the Lossnay properly and safely.

Warning

Mis-operation could result in serious injury or death.

Caution

Mis-operation could result in injury and/or damage to property.

The symbols used in have the following meanings.

Warning

Caution

• Inspect the grounding wire and repair it if incomplete.

Request

● Make sure that the product operates correctly after maintenance.

—3——3—

1. Specifications

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB) Starting current

Insulation resistance Dielectric strength

LGH-15RX3-E Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 2 units 180 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82 %)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 17 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

0.48-0.52 0.34-0.35 0.24-0.25 0.48-0.52 0.34-0.36 0.24-0.25 0.57 0.39 0.27 0.58 0.40 0.27

104-122 74-83 52-59 104-123 74-85 52-59 119 85 58 120 85 58

150 150 120 150 150 120 150 150 110 150 150 110

42 42 33 42 42 33 42 42 31 42 42 31

9.2 4.1 2.6 9.2 4.1 2.6 12.2 6.1 3.6 12.2 6.1 3.6 90 40 25 90 40 25 120 60 35 120 60 35 77 77 80 - - - 77 77 81 - - 69 69 72 - - - 69 69 73 - - -

62.5 62.5 66 - - - 62.5 62.5 67 - - 26-27 24-25 21-22 26-27 24-25 21-22 28 25 22 28 25.5 22 33-34 31-32 26-27 33-34 31-32 26-27 35 32 27 35 32.5 27

Under 0.8/0.7 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

[A]

[W]

[m3/h]

[L/s]

[mmH2O]

[Pa]

[%] Heating Cooling

Measured at 1.5 m under the center of panel

Air outlets

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB) Starting current

Insulation resistance Dielectric strength

LGH-25RX3-E Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 2 units 180 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82 %)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 21 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

0.51-0.54 0.42-0.44 0.25-0.27 0.52-0.55 0.42-0.45 0.25-0.27 0.63 0.49 0.28 0.63 0.50 0.27

111-128 91-104 54-64 112-130 91-105 54-64 131 106 60 132 107 58

250 250 165 250 250 165 250 250 150 250 250 150

69 69 46 69 69 46 69 69 42 69 69 42

6.6 4.1 2.0 6.6 4.1 2.0 10.2 5.1 2.0 10.2 5.1 2.0 65 40 20 65 40 20 100 50 20 100 50 20 78 78 83 - - - 78 78 84 - - 69 69 74 - - - 69 69 75 - - -

62.5 62.5 68 - - - 62.5 62.5 70 - - -

26.5-27.5 25-26 21-22 27-28 25.5-26.5 21-22 28.5 25.5 21 29 26 21

33.5-34.5 32-33 26-27 34-35 32.5-33.5 26-27 35.5 32.5 26 36 33 26 Under 0.8/0.7 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

[A]

[W]

[m3/h]

[L/s]

[mmH2O]

[Pa]

[%] Heating Cooling

Measured at 1.5 m under the center of panel

Air outlets

—4——4—

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB) Starting current

Insulation resistance Dielectric strength

LGH-35RX3-E Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 2 units 220 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82 %)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 30 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

0.78-0.79 0.71-0.71 0.46-0.48 0.81-0.82 0.72-0.73 0.46-0.49 0.99 0.83 0.46 1.00 0.83 0.46

169-187 154-167 97-110 176-192 156-172 97-111 215 180 97 217 180 97

350 350 230 350 350 230 350 350 210 350 320 210

97 97 64 97 97 64 97 97 58 97 89 58

15.3 7.1 2.6 15.3 7.1 2.7 19.4 5.1 2.0 19.4 5.1 2.0 150 70 25 150 70 26 190 50 20 190 50 20

79 79 84 - - - 79 79 85 - - -

68.5 68.5 75.5 - - - 68.5 68.5 76.5 - - -

65.5 65.5 72 - - - 65.5 65.5 73 - - -

31-32 28-30 23-24 31.5-32.5 28-30 23-24 32.5 27 21 33.5 28 21

39-40 35-37 29-30 39.5-40.5 35-37 29-30 40.5 34 27 41.5 35 27 Under 1.6/1.5 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

[A]

[W]

[m3/h]

[L/s]

[mmH2O]

[Pa]

[%] Heating Cooling

Measured at 1.5 m under the center of panel

Air outlets

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB) Starting current

Insulation resistance Dielectric strength

LGH-50RX3-E Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 2 units 222 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82 %)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 33 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

0.94-0.95 0.89-0.90 0.57-0.60 0.95-0.96 0.90-0.93 0.58-0.60 1.21 1.05 0.60 1.22 1.05 0.60

204-225 193-214 123-142 206-228 196-221 125-142 262 231 130 263 228 130

500 500 350 500 500 350 500 500 300 500 500 300 139 139 97 139 139 97 139 139 83 139 139 83

15.3 6.1 3.1 15.3 6.1 3.1 20.4 6.1 2.0 20.4 6.1 2.0 150 60 30 150 60 30 200 60 20 200 60 20

77 77 82 - - - 77 77 83.5 - - 67 67 73 - - - 67 67 75 - - -

61.5 61.5 68 - - - 61.5 61.5 70 - - -

32.5-33.5 30-31 23.5-24.5 33.5-34.5 30.5-31.5 23.5-24.5 32.5 28.5 23 33.5 29.5 23

40.5-41.5 38-39 29.5-30.5 41.5-42.5 38.5-39.5 30.5-30.5 40.5 36.5 29 41.5 37.5 29 Under 1.9/1.7 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

[A]

[W]

[m3/h]

[L/s]

[mmH2O]

[Pa]

[%] Heating Cooling

Measured at 1.5 m under the center of panel

Air outlets

—5——5—

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB) Starting current

Insulation resistance Dielectric strength

LGH-80RX3-E Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 2 units 245 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82%)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 61 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

1.8-1.8 1.7-1.7 1.4-1.4 1.7-1.7 1.6-1.6 1.4-1.4 2.1 1.9 1.5 2.0 1.8 1.4

392-418 368-396 304-332 370-394 348-374 298-330 455 405 315 425 390 305

800 800 670 800 800 670 800 800 660 800 800 660 222 222 186 222 222 186 222 222 183 222 222 183

14.3 10.2 7.1 14.3 10.2 7.1 23.5 12.2 8.2 23.5 12.2 8.2 140 100 70 140 100 70 230 120 80 230 120 80

78 78 80.5 - - - 78 78 81 - - 71 71 73 - - - 71 71 73.5 - - -

64.5 64.5 68 - - - 64.5 64.5 68.5 - - -

33.5-34.5 32-33 30-31 34.5-35.5 33-34 30.5-31.5 35 31 29 36 32 29.5

44.5-45.5 43-44 40-41 45.5-46.5 44-45 40.5-41.5 46 42 39 47 43 39.5 Under 3.8/3.1 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

[A]

[W]

[m3/h]

[L/s]

[mmH2O]

[Pa]

[%] Heating Cooling

Measured at 1.5 m under the center of panel

Air outlets

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB) Starting current

Insulation resistance Dielectric strength

LGH-100RX3-E,LGH-100RX3-E-60 Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 2 units 245 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82 %)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 72 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

2.3-2.3 2.3-2.3 2.2-2.2 2.3-2.3 2.3-2.2 2.1-2.1 2.8 2.6 1.7 2.8 2.6 1.7

500-525 495-515 465-475 505-525 500-515 455-485 600 555 365 595 550 365

1000 1000 870 1000 1000 870 1000 1000 720 1000 1000 720

278 278 242 278 278 242 278 278 200 278 278 200

16.3 10.2 8.2 16.3 10.2 8.2 20.4 11.2 6.1 20.4 11.2 6.1 160 100 80 160 100 80 200 110 60 200 110 60

79 79 81 - - - 79 79 83 - - 70 70 73 - - - 70 70 76 - - -

64.5 64.5 67 - - - 64.5 64.5 71 - - -

36-37 34-35 31.5-32.5 37-38 35-36 33-34 36 34 30 37 35 31

47-48 45-46 41.5-42.5 48-49 46-47 43-44 47 45 40 48 46 41 Under 5.7/5.0 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

[A]

[W]

[m3/h]

[L/s]

[mmH2O]

[Pa]

[%] Heating Cooling

Measured at 1.5 m under the center of panel

Air outlets

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB)

Measured at 1.5 m under the center of panel

Air outlets Starting current Insulation resistance Dielectric strength

LGH-150RX3-E Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 4 units 245 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82 %)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 154 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

3.3-3.3 3.1-3.1 2.7-2.8 3.2-3.2 3.0-3.0 2.6-2.6 4.2 3.7 2.9 4.2 3.7 2.9

[A]

720-785 670-730 585-660 695-760 650-705 565-615 915 805 630 905 800 630

[W]

[m3/h]

[L/s]

[mmH2O]

Heating Cooling

1500 1500 1200 1500 1500 1200 1500 1500 1200 1500 1500 1200

417 417 333 417 417 333 417 417 333 417 417 333

14.0 10.2 5.1 14.0 10.2 5.1 21.0 12.0 7.0 21.0 12.0 7.0

[Pa]

[%]

137 100 50 137 100 50 206 118 69 206 118 69

79 79 81 - - - 79 79 81 - - 72 72 75 - - - 72 72 75 - - -

65.5 65.5 69 - - - 65.5 65.5 69 - - -

36.5-37.5 35.5-36.5 32.5-33.5 36.5-37.5 35.5-36.5 32.5-33.5 37 36 33 37 36 33

47.5-48.5 46.5-47.5 43.5-44.5 47.5-48.5 46.5-47.5 43.5-44.5 48 47 44 48 47 44 Under 6.8/5.9 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

Model Control signal Heat recovery system Heat recovery module material Cladding Heat insulating material Motor Blower Filter material Operating environment (Supply air) Functions Weight Power supply Ventilation mode Fan speed Current Power consumption

Air volume

External static pressure Temperature recovery efficiency

Enthalpy recovery efficiency (%)

Noise (dB)

Measured at 1.5 m under the center of panel

Air outlets Starting current Insulation resistance Dielectric strength

LGH-200RX3-E,LGH-200RX3-E-60 Serial single communication (M-NET transmission) Air-to-air total heat (sensible heat + latent heat) recovery Partition, spacing plate-special treated paper Galvanized steel sheet Self-extinguishing urethane foam Totally enclosed capacitor permanent split-phase induction motor, 4 poles, 4 units 245 mm dia.centrifugal fan Non-woven fabrics filter (Gravitational method 82 %)

-10 °C to 40 °C, RH 80 % or less (-15 °C (*1) to +40 °C, RH 80 % or less) Lossnay ventilation/Bypass ventilation High (Extra high)-Low switching 179 kg

Single phase 220-240 V/50 Hz Single phase 220 V/60 Hz

Lossnay ventilation Bypass ventilation Lossnay ventilation Bypass ventilation

Extra high High Low Extra high High Low Extra high High Low Extra high High Low

4.6-4.3 4.6-4.3 4.1-3.8 4.4-4.2 4.4-4.1 4.1-3.8 5.4 5.2 3.3 5.3 5.0 3.3

[A]

[W]

[m3/h]

[L/s]

[mmH2O]

[Pa]

[%] Heating Cooling

1000-1020

995-1020 900-905 960-995 955-975 885-900 1175 1130 735 1155 1090 720

2000 2000 1400 2000 2000 1400 2000 2000 1400 2000 2000 1400

556 556 389 556 556 389 556 556 389 556 556 389

14.0 8.2 8.5 14.0 8.2 8.5 20.0 9.0 7.0 20.0 9.0 7.0 137 80 83 137 80 83 196 88 69 196 88 69

79 79 83 - - - 79 79 83 - - 70 70 76 - - - 70 70 76 - - -

64.5 64.5 71 - - - 64.5 64.5 71 - - -

39-40 37-38 35.5-36.5 39.5-40.5 37.5-38.5 36-37 38.5 36.5 34.5 38.5 36.5 34.5

50-51 48-49 46.5-47.5 50.5-51.5 48.5-49.5 47-48 49.5 47.5 45.5 49.5 47.5 45.5 Under 13.0/9.7 A or less 10 MΩ or more (500 V megger) AC 1500 V 1 minute

—6——6—

2. Dimensions

SA

(supply air)

RA

(return air)

OA

(outside air)

EA

(exhaust air)

10

Ceiling suspension fixture

Position where Ceiling suspension fixture is changed

Power cord opening

275

90

Maintenance space for heat exchanger, air filters, and fans

Position where duct direction is changed

High-performance filter (sold separately attachment position)

Heat exchanger (Lossnay core)

Air exhaust fan

Damper plate

Maintenance cover

Control box

Air supply fan

Ceiling suspension fixture

54 780 54

φ 110

φ 97.5

600 or more

450

610

119

150 to 250

119

64122

700

119

Air filters

Inspection

opening

()

102

700

102

735

530

22

765

10

275

90

63 780 63

102

φ 160

φ 142

SA

(supply air)

RA

(return air)

OA

(outside air)

EA

(exhaust air)

Ceiling suspension fixture

Maintenance space for heat exchanger, air filters, and fans

Heat exchanger (Lossnay core)

Air exhaust fan

Damper plate

Maintenance cover

Control box

Air supply fan

Ceiling suspension fixture

600 or more

150 to 250

Air filters

Inspection

opening

Power cord opening

Position where duct direction is changed

High-performance filter (sold separately attachment position)

Position where Ceiling suspension fixture is changed

()

LGH-15RX3-E

Unit (mm)

Attention

*

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming. The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

* Specifications subject to change without notice.

LGH-25RX3-E

Attention

*

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming.

Unit (mm)

The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

—7——7—

* Specifications subject to change without notice.

—8——8—

Unit (mm)

SA

(supply air)

RA

(return air)

OA

(outside air)

EA

(exhaust air)

40

Ceiling suspension fixture

317

90

Maintenance space for heat exchanger, air filters, and fans

Heat exchanger (Lossnay core)

Air exhaust fan

Damper plate

Maintenance cover

Control box

Air supply fan

Ceiling suspension fixture

63 888 63

φ 160

φ 142

600 or more

650

874

124

150 to 250

124

90622

790

124

Air filters

Inspection

opening

Power cord opening

Position where duct direction is changed

High-performance filter (sold separately attachment position)

Position where Ceiling suspension fixture is changed

()

SA

(supply air)

RA

(return air)

OA

(outside air)

EA

(exhaust air)

40 317

90

Maintenance space for heat exchanger, air filters, and fans

Air exhaust fan

Damper plate

Maintenance cover

Control box

Air supply fan

Ceiling suspension fixture

79 888 79

φ 208

φ 192

600 or more

745

1016

124

150 to 250

124

104822

790

124

Inspection

opening

Power cord opening

Position where duct direction is changed

Ceiling suspension fixture

Heat exchanger (Lossnay core)

Air filters

High-performance filter (sold separately attachment position)

Position where Ceiling suspension fixture is changed

()

LGH-35RX3-E

LGH-50RX3-E

*

Attention

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming. The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

*

Attention

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming. The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

* Specifications subject to change without notice.

—9——9—

LGH-80RX3-E

LGH-100RX3-E,LGH-100RX3-E-60

*

Attention

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming. The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

*

Attention

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming. The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

Unit (mm)

* Specifications subject to change without notice.

Position where duct direction is changed

Air exhaust fan

149

Damper plate

1030

Ceiling suspension fixture

RA

(return air)

1036

SA

(supply air)

Power cord opening

22

Air supply fan

Control box

Maintenance cover

φ 258

φ 242

90

10

398

EA

(exhaust air)

690

1004

OA

(outside air)

Maintenance space for heat exchanger, air filters, and fans

Heat exchanger (Lossnay core)

Position where Ceiling suspension

()

fixture is changed

Ceiling suspension fixture

149

Inspection

600 or more

150 to 250

79 1164 79

opening

High-performance filter (sold separately attachment position)

149

Air filters

Position where duct direction is changed

Maintenance space for heat exchanger, air filters, and fans

Position where Ceiling suspension

()

fixture is changed

Ceiling suspension fixture

Air exhaust fan

EA

(exhaust air)

920

1231

OA

(outside air)

600 or more

150 to 250

Heat exchanger (Lossnay core)

79 1164 79

Damper plate

149

1030

149

Inspection

opening

149

Air filters

Ceiling suspension fixture

RA

(return air)

1263

SA

(supply air)

Power cord opening

22

Air supply fan

Control box Maintenance cover

High-performance filter (sold separately attachment position)

φ 258

φ 242

90

10

398

—10——10—

LGH-200RX3-E,LGH-200RX3-E-60

LGH-150RX3-E

*

Attention

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming. The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

*

Attention

1. If condensation is expected to form, heat up the fresh outside air using a duct heater, etc.

2. An inspection port (450 × 450 – 600 × 600 mm) must be installed on the filter and Lossnay core removing side.

3. The two outdoor ducts must be covered with heat-insulating material in order to prevent condensation from forming. The two indoor ducts may be covered with heat-insulation if Lossnay is to be installed in the circumstance of higher temperature in summer.

4. Installing the duct damper is preferred also to prevent the outdoor air introduced to room if there has strongthern wind, when the unit operates or stops.

5. The outside ducts must be tilted at a gradient (1/30 or more) down toward the outdoor area from Lossnay unit.

Unit (mm)

* Specifications subject to change without notice.

Air exhaust fan

Damper plate 1030

Ceiling suspension fixture

964

Air supply fan

φ 350

1046

26

705

RA

(return air)

SA

(supply air)

800

100

EA

(exhaust air)

1004

OA

(outside air)

600 or more

Maintenance space for heat exchanger, air filters, and fans

Ceiling suspension fixture

510

Inspection

Air filters

opening

1662 1164

150 to 250

Heat exchanger (Lossnay core)

249130 249 130

Control box

Maintenance cover

High-performance filter (sold separately attachment position)

Power cord opening

(exhaust air)

(outside air)

Maintenance space for heat exchanger, air filters, and fans

Air exhaust fan

EA

740

1231

OA

600 or more

150 to 250

Heat exchanger (Lossnay core)

Ceiling suspension fixture

Damper plate

1030

Inspection

opening

Air filters

1662 1164

249130 249 130

Ceiling suspension fixture

Air supply fan

Control box

Maintenance cover

High-performance filter (sold separately attachment position)

Power cord opening

1194

RA

(return air)

1273

SA

(supply air)

26

705

φ 350

800

100

—11——11—

3. Wiring diagrams

GM

231456AB

S

13

9 8 7

M1

M2

Operation monitor output MAX MIN

AC 240 V 2A AC 220 V 100 mA DC 24 V 2A DC 5 V 100 mA

Malfunction monitor output MAX MIN

AC 240 V 1A AC 220 V 100 mA DC 24 V 1A DC 5 V 100 mA

N L

PE

SA1

SA2

SW5

SW2

SW1

WHITE

BLUE BLUE

GREY

ORANGE ORANGE

BROWN BROWN

RED

YELLOW

BROWN

BLUE

Breker

TH1(OA)

PZ-41SLB

PZ-52SF

CN16

High Low

Unchaged a-contact

High/Low select connector

CN7

CN2

CN6

CN1

6

1

S1

S2

TM1

GREEN/YELLOW

CN32

TB5

Transmission cable

Uncharged a-contact

12V or

24V DC

(non-polar)

TM2

Shield wire

3

External control input

10

TM3

SW3

X2

X1

X5

High

Extra high

BLUE

Exhaust fan motor

CN10

CN9

High

Supply fan motor

WHITE

ORANGE

YELLOW

GREY

BLACK

X4

X3

Extra high

SW4

1

5

1

5

CN8-1

RED

CN8-2

BROWN

ZNR102

DSA1

C101

Fuse 250V 6.3A

ZNR101

C

TR

M-NET-transmission cable

LS

CN5

TH2(RA)

Lossnay unit MAX 15 units

Mr.Slim

X8

X7

N L

Power supply 220-240 V ~50Hz 220 V ~60Hz

* Specifications subject to change without notice.

■ Symbol explanation

M1 : Motor for exhaust fan M2 : Motor for supply fan C : Capacitor GM : Motor for Bypass movement LS : Microswitch TH1 : Thermistor for outside air TH2 : Thermistor for return air SW1 : Switch (Main/Sub change) SW2, 5

: Switch (Function selection)

SW3 : High/E.high select switch

(Exhaust fan)

SW4 : High/E.high select switch

(Supply fan) TM1 : Terminal block (Power supply) TM2 : Terminal block (Transmission

cable and external control input) TM3 : Terminal block (Monitor output) TB5 : Terminal block

(M-NET Transmission cable) S1, S2

: Connector (Power supply) TR : Control circuit transformer X7 : Relay contact

(For operation monitor output)

X8 : Relay contact

(For malfunction monitor output)

CN1 :

Connector (Transformer primary)

CN2 :

Connector

(Transformer secondary) CN5 : Connector (Thermistor) CN6 : Connector (Microswitch) CN7 : Connector

(Motor for Bypass operation) CN8-1

: Tab connector (Fan motor)

CN8-2

: Tab connector (Fan motor) CN9 : Connector (Fan motor) CN10 : Connector (Fan motor) CN16 : Connector (High/Low switch) CN32 :

Connector (Remote control selection)

SA1 : Address setting rotary switch

(10 digit)

SA2 : Address setting rotary switch

(1 digit)

MARK

: Indicates terminal block

: Connector

: Board insertion connector or fas-

tening connector of control board

*1

*

Attention

1. This must be used with Mitsubishi Electric Air-Conditioner Network System. (MELANS)

2. External control input (TM2) is impossible to use on the Lossnay addressed to “Sub” (SW1) unit.

3. PZ-41SLB and PZ-52SF cannot be used simultaneously.

■ NOTE

1. TM1, TM2, TM3, TB5 shown in bold lines are field work.

2. Breaker should be provided by the customer.

3. Be sure to connect the grounding wire.

LGH-15RX

3

-E,LGH-25RX3-E,LGH-35RX3-E,LGH-50RX3-E,LGH-80RX3-E,LGH-100RX3-E,LGH-100RX3-E-60

—12——12—

NL

PE

2

3 1

4

5

6

A

B

S

9

87

10

C

Supply fan motor

Exhaust fan motor

Supply fan motor

Exhaust fan motor

C

M2

M1

M2

M1

ABS65

LS

GM

LS

GM

TM3

CN10 CN9

1

5

1

5

CN8-1

CN8-2

ZNR102

DSA1

C

TB5TM2

TM1

GREEN/YELLOW

BROWN RED

BLACK

GREY

YELLOW

ORANGE

BLUE

WHITE

GREEN/YELLOW

X3

X4

X1

X2

WHITE

SA1

SA2

SW5SW2

SW1(Main)

CN16

CN7 CN2 CN6

CN1

611

S1 S2

CN32

(TB5)

TM2

3

C101

ZNR101

C

TR

CN5

TH2(RA)

TH1(OA)

BROWN

BLUE

ORANGE

GREY

BLUE

BROWN

RED

YELLOW

WHITE

Fuse 250V 6.3A

X5

X7 X8

31

CN16

High

Low

Unchaged a-contact

High/Low select connector

Uncharged a-contact

Shield wire M-NET-transmission

cable

External control input

Transmission cable Lossnay unit

MAX 7 units

Breker

Mr.Slim

(non-polar)

24V DC

12V or

PZ-41SLB

PZ-52SF

2

3 1

4

5

6

A

B

S

9

87

10

(TM3)

CN10 CN9

Extra high

1

5

1

5

CN8-1

CN8-2

ZNR102

DSA1

BROWN

High

Extra high

High

SW4

BLACK

GREY

YELLOW

ORANGE

BLUE

WHITE

SW3

Extra high

High

Extra high

High

SW4 SW3

X3

X4

X1

X2

WHITE

SA1

SA2

SW5SW2

SW1(Sub)

(CN16)

CN7 CN2 CN6

CN1

611

S1 S2

(CN32)

(TB5)

(TM2)

3

C101

ZNR101

TR

CN5

TH2(RA)

TH1(OA)

BROWN

BLUE

ORANGE

GREY

BLUE

BROWN

RED

YELLOW

WHITE

Fuse 250V 6.3A

X5

X7 X8

Power supply 220-240 V ~50Hz 220 V ~60Hz

NL

Operation monitor output MAX MIN AC 240 V 2A AC 220 V 100 mA DC 24 V 2A DC 5 V 100 mA

Malfunction monitor output MAX MIN AC 240 V 1A AC 220 V 100 mA DC 24 V 1A DC 5 V 100 mA

* Specifications subject to change without notice.

■ Symbol explanation

M1 : Motor for exhaust fan M2 : Motor for supply fan C : Capacitor GM : Motor for Bypass movement LS : Microswitch TH1 : Thermistor for outside air TH2 : Thermistor for return air SW1 : Switch (Main/Sub change) SW2, 5

: Switch (Function selection)

SW3 : High/E.high select switch

(Exhaust fan)

SW4 : High/E.high select switch

(Supply fan) TM1 : Terminal block (Power supply) TM2 : Terminal block (Transmission

cable and external control input) TM3 : Terminal block (Monitor output) TB5 : Terminal block

(M-NET Transmission cable) S1, S2

: Connector (Power supply) TR : Control circuit transformer X7 : Relay contact

(For operation monitor output)

X8 : Relay contact

(For malfunction monitor output)

CN1 :

Connector (Transformer primary)

CN2 :

Connector

(Transformer secondary) CN5 : Connector (Thermistor) CN6 : Connector (Microswitch) CN7 : Connector

(Motor for Bypass operation) CN8-1

: Tab connector (Fan motor)

CN8-2

: Tab connector (Fan motor) CN9 : Connector (Fan motor) CN10 : Connector (Fan motor) CN16 : Connector (High/Low switch) CN32 :

Connector (Remote control selection)

SA1 : Address setting rotary switch

(10 digit)

SA2 : Address setting rotary switch

(1 digit)

MARK

: Indicates terminal block

: Connector

: Board insertion connector or fas-

tening connector of control board

*1

*

Attention

1. This must be used with Mitsubishi Electric Air-Conditioner Network System. (MELANS)

2. External control input (TM2) is impossible to use on the Lossnay addressed to “Sub” (SW1) unit.

3. PZ-41SLB and PZ-52SF cannot be used simultaneously.

■ NOTE 1. TM1, TM2, TM3, TB5 shown in bold lines are field work.

2. Breaker should be provided by the customer.

3. Be sure to connect the grounding wire.

LGH-150RX

3

-E,LGH-200RX3-E,LGH-200RX3-E-60

—13——13—

4. Maintenance procedures

4-1 Blower Parts

1Remove the cover fixing screw. 2Pull back the hinged clip.

2Open the door and lift off of the hinge brackets.

3Remove Filters from the unit. 4Remove Cores from the unit.

LGH-15RX3-E~LGH-100RX3-E type

Hinge Maintenance Cover

LGH-15RX

3-E~LGH-100RX3-E type

Core

Screw Screw

Filter Filter Control Box Cover

LGH-150RX

3-E,LGH-200RX3-E type

Hinge Maintenance Cover

LGH-150RX

3-E,LGH-200RX3-E type

Core

—14——14—

5Remove screw from the core-guide,Remove core-

guide.

6Remove separator from the blower portion.

7Remove screws from the motor base.

8Remove the pre-assembled blower.

Core Guide

Separator

Motor Base Motor

Pre-assembled Blower

—15——15—

4-2 Damper Movement Motor Part (All units available)

4-3 Circuit Board Part

(1)LGH-15RX3-E~LGH-100RX3-E type

1Remove (3) screws from the control box cover.

1Remove (2) screws out from the damper motor

cover.

2Take the damper movement motor out of the cover.

Damper Motor Cover

Damper Movement Motor

Control Box Cover

—16——16—

2Remove (2) screws from capacitors.

3Remove all harnesses connected to the circuit

board.

4Take the circuit board out.

Capacitors

Circuit Board

—17——17—

(2)

LGH-150RX3-E,LGH-200RX3-E (-60) type

1Remove (4) screws from the control box cover.

2Remove all harnesses connected to the circuit

board.

3Take the circuit board out.

—18——18—

Address setting switches (SA1 and SA2)

(The factory setting is "0".)

Function selection switch

(The factory setting is SW5 and SW6 set to "ON", and all others set to "OFF".)

(Sub)

Blue

To motor (capacitor)

Transformer

PCB Ground wire

P section

Must be securely grounded.

*When inserting the PCB ASSY into the spacer,

press down on the circuit board near the spacer before inserting it.

To motor and GM ground

Special High/High selection switch

(The factory setting is "Special High".)

To motor and GM ground

Brown

Main/Sub selection switch

(The factory setting is "Sub".)

Main/Sub selection switch

(The factory setting is "Main".)

Function selection switch

(The factory setting is SW5 and SW6 set to "ON", and all others set to "OFF".)

Address setting switches (SA1 and SA2)

(The factory setting is "0".)

CAUTION Unit : LGH-150RX3-E,LGH-200RX3-E All settings should be re-set the same as

previous.

a.Main/Sub change switch (SW1)

Upper PCB : Main

Lower PCB : Sub b.Address switch (SA1,SA2) c.Function switch (SW2,SW5) d.Fan speed selection switch (SW3,SW4)

—19——19—

—20——20—

5. Parts list

Please note the following when using the parts list.

1. To order parts, contact the nearest office of MITSUBISHI ELECTRIC Cor

poration.

2. When ordering parts, always indicate the part number, part name, and number of parts required.

3. Parts are not always available, and it may take time for you to receive them.

4. There may be specification improvements or prices changes.

5. Specifications and prices are as of January 2002.

6. Parts marked are critical for safety. To maintain safety and performance, always replace these parts with the parts prescribed.

7. The numbers that are circled in the exploded view are the same as the reference number for the part being indicated.

Description of screw abbreviations

Screw

4 × 16

Abbreviation

PC screw PRC screw PP screw SW · PP screw PPT screw PCT screw PTT screw PT screw SET screw SQ · SET screw P · SET screw PMT screw HS · SET screw P · R · W screw P · C · W screw P · R · C . W screw R · W screw PW · PP screw SW-PW · PP screw

Description

Cross recess flat head machine screw Cross recess oval head machine screw Cross recess pan head machine screw Cross recess pan head screw with spring washer Cross recess tapping screw Cross recess flat head tapping screw Cross recess truss head tapping screw Cross recess truss head machine screw Slotted head stop screw Square head stop screw Pan head stop screw Primer truss head screw Hexagon head stop screw Cross recess round wood screw Cross recess flat head wood screw Cross recess round and flat wood screw Slotted round wood screw Cross recess pan head screw with small washer Cross recess pan head machine screw with spring washer and flat washer

Screw diameter Length

Mitsubishi LGH 15-200RX3, U-042 Service Manual [eng]

Contents

Safety precautions

1. Specifications

2. Dimensions

3. Wiring diagrams

4. Maintenance procedures

4-1 Blower Parts

4-2 Damper Movement Motor Part (All units available)

4-3 Circuit Board Part

5. Parts list