Objectives

The primary objective of this tender is to procure after-service repair for central air conditioning (HVAC) systems at Hlabisa Hospital. The aim is to ensure the proper functioning, maintenance, and repair of HVAC equipment to support patient care, infection prevention, and operational efficiency within the hospital facilities.

Scope

The scope of work includes:

• Inspection and detection of gas leaks on HVAC systems.
• Repair of identified leaks and faulty components.
• Testing all compressor windings and flushing systems.
• Re-gassing units after repairs.
• Replacement of parts such as driers, electronic switches, expansion valves, compressors, and control components.
• Repair and replacement of faulty compressors and electrical components.
• Commissioning and testing of repaired systems to ensure operational readiness.
• Guaranteeing repairs against defective parts and workmanship for a period of twelve months.
• Providing necessary documentation, reports, and certificates of conformity post-repair.

Technical Requirements

The technical requirements specify:

• Complete repair of HVAC systems including detection and repair of gas leaks.
• Replacement of compressors, driers, electronic switches, expansion valves, and other critical components.
• Pressure testing and flushing of systems with nitrogen and 141b refrigerant.
• Re-gassing with appropriate refrigerants (R22/507, R410a).
• Calibration and reset of controllers to ensure system functionality.
• Guarantee of repairs for 12 months post-completion.
• Compliance with occupational health and safety standards, including certification of conformity.
• Adherence to specified timeframes, with a completion period of two weeks from contract award.

Skills and Skills Requirements

The tenderer must demonstrate:

• Valid CIDB Grade 3 ME (Grade 3) certification.
• Proven experience in HVAC plant equipment maintenance and repair, with at least three (3) references.
• Certification of Gas handling (SAQCC) for refrigerant systems.
• Public liability insurance coverage of at least R3,000,000.
• Ability to perform system diagnostics, leak detection, component replacement, and pressure testing.
• Qualified technicians with appropriate trade certificates and registration.
• Knowledge of occupational safety standards and ability to produce certificates of conformity.
• Capacity to complete repairs within the specified two-week period and provide comprehensive reports and documentation.