Drill Rigs Air Conditioning and HVAC Repairs

HVAC systems on drill rigs

Engine or hydraulically driven compressor, condenser mounted clear of drill dust where possible, pressurised operator cab with heavy-duty filtration. Drilling generates fine, abrasive rock dust in high concentration close to the operator station, which loads filters and abrades components faster than general earthmoving work.

Common faults we find on drill rigs

• Rapid filter blockage
• Condenser blinding with fine dust
• Loss of cabin pressurisation
• Evaporator fouling
• Compressor drive faults

Diagnostic process

• Operator interview and fault confirmation with the machine running under load
• Visual inspection of condenser, belts, hoses, wiring and cabin filters
• High and low side pressure testing against the manufacturer's specification
• Electronic leak detection, dye tracing or nitrogen pressure testing where required
• Electrical fault finding on clutches, relays, pressure switches and control modules
• Written findings, parts list and repair recommendation before work proceeds

Repair approach

• Correct recovery of refrigerant before any component is opened
• Compressor, condenser, evaporator, drier, valve, blower and harness repairs or replacement
• System flushing and drier replacement after contamination or compressor failure
• Vacuum, leak hold test, charge by weight and oil balance to specification
• Function test across the full temperature range with cabin outlet readings recorded

Preventative maintenance recommendations

Shortest filter intervals of any category, regular evaporator inspection and cabin pressure verification at each service.