JLM Mechanical specializes in VRF/VRV systems, commercial HVAC, and residential heating and cooling. With experience in complex multi-zone installations, refrigerant piping, commissioning, troubleshooting, repair, and system replacement, our team is equipped to handle everything from advanced commercial VRF applications to traditional HVAC systems.
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Specialized VRF / VRV Service From Installation to Commissioning
Whether the project involves troubleshooting one indoor unit, repairing a refrigerant leak, replacing a compressor, installing new refrigerant piping, or replacing an entire multi-zone system, JLM Mechanical provides the technical knowledge and hands-on experience required to work with complex VRF/VRV equipment.
Our focus is on accurate diagnosis, clean installation practices, proper refrigerant procedures, thorough commissioning, and dependable long-term operation.
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New VRF/VRV system installation
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Complete system replacements and changeouts
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VRF refrigerant piping installation and repair
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Troubleshooting and advanced diagnostics
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Manufacturer maintenance-tool diagnostics
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Leak detection and refrigerant repairs
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Nitrogen pressure testing
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System evacuation and dehydration
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Refrigerant recovery and charging
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Startup and commissioning
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Indoor fan coil repair and replacement
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Outdoor unit repair and replacement
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Branch controller and branch box service
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Compressor diagnosis and replacement
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Electronic expansion valve / EEV diagnosis and replacement
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PCB and control-board replacement
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Communication and control troubleshooting
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Thermostat, sensor, and thermistor diagnosis
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Coil repair and replacement
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Fan and blower motor replacement
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Condensate pump and drain repairs
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Electrical troubleshooting
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System error-code diagnosis
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Multi-zone performance troubleshooting
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Preventative maintenance
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Existing-system evaluation
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VRF retrofits and system upgrades
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Complete system startup and performance verification
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