Mitsubishi Electric LGH-35RVX3-E User Manual

Warning:
Repair work must be performed by the manufacturer, its service
agent or a similarly qualified person in order to avoid hazards.
LOSSNAY ENERGY RECOVERY VENTILATOR
HANDBOOK
MODELS
LGH-15RVX3-E
LGH-25RVX3-E
LGH-35RVX3-E
LGH-50RVX3-E
LGH-65RVX3-E
LGH-80RVX3-E
LGH-100RVX3-E
LGH-160RVX3-E
LGH-200RVX3-E
May 2023 No. U318
Remote controller (Optional)
PZ-62DR-EA
PZ-62DR-EB
PZ-43SMF-E
Filter (Optional)
PZ-15RF3-E PZ-15RFP3-E PZ-15RFM3-E PZ-15RFH3-E
PZ-25RF3-E PZ-25RFP3-E PZ-25RFM3-E PZ-25RFH3-E
PZ-35RF3-E PZ-35RFP3-E PZ-35RFM3-E PZ-35RFH3-E
PZ-50RF3-E PZ-50RFP3-E PZ-50RFM3-E PZ-50RFH3-E
PZ-65RF3-E PZ-65RFP3-E PZ-65RFM3-E PZ-65RFH3-E
PZ-80RF3-E PZ-80RFP3-E PZ-80RFM3-E PZ-80RFH3-E
PZ-100RF3-E PZ-100RFP3-E PZ-100RFM3-E PZ-100RFH3-E
Nameplate
<LGH-15 to 100RVX3-E>
Nameplate
<LGH-160 and 200RVX3-E>

Mitsubishi Electric LGH-35RVX3-E Specifications

General

Model	LGH-35RVX3-E
Airflow Rate	350 m³/h
Heat Exchange Efficiency	82%
Voltage	220-240 V
Frequency	50 Hz
Application	Residential, Commercial
Air Flow	350 m³/h
Sound Pressure Level	25 dB(A)
Noise Level	25 dB

Summary

Safety Precautions

General Warning Precautions

Covers critical safety warnings regarding electrical hazards, modifications, and part usage.

Handling and Injury Precautions

Specifications

Electrical Wiring Diagrams

Wiring Diagrams for LGH-15 to 100RVX3-E

Illustrates the electrical connections for the control and power circuits.

Wiring Diagrams for LGH-160/200RVX3-E

Shows electrical wiring diagrams for dual-unit configurations.

Circuit Board Diagrams

Control Circuit Board Layout

Diagrams of the control circuit board with component and connector labels.

Power Circuit Board Layout

Troubleshooting

Service Precautions and Flowchart

Failure Mode 1: Lossnay Does Not Work

Troubleshooting steps for when the unit fails to operate.

Failure Mode 2: Remote Controller Does Not Work

Diagnosing issues when the remote controller is unresponsive.

Failure Mode 3: Remote Controller Operations Not Possible

Verifies settings and conditions preventing remote controller operations.

Failure Mode 4: Error Codes and LED Display

Explains error codes and LED indicators for troubleshooting.

Overhauling Procedures

Work Precautions for Servicing

Circuit Board Replacement Procedures