Objectives

The primary objective of this tender is to replace the condenser coils for the theatre air conditioning system at Hlabisa Hospital. The project aims to upgrade the HVAC system to ensure reliable, efficient, and continuous performance, maintaining optimal indoor environmental conditions within the hospital's theatre facilities. Additionally, the work includes detecting and repairing gas leaks, re-gassing the units, and providing a 12-month guarantee on all repairs.

Scope

The scope of work encompasses the following activities:

• Site visit for measurement and assessment prior to tendering.
• Removal of existing HVAC outdoor coil units, including all preparation and disposal of scrap materials, ensuring no damage to existing infrastructure or patient/workers safety.
• Supply and installation of new copper coil units matching existing specifications, including welding and joining procedures.
• Replacement of all oil separators, driers, expansion valves, and electrical switches (LP/HP).
• Replacement of compressors if deemed necessary; otherwise, the existing compressors will be retained.
• Inspection and testing of the entire system, including leak detection, flushing, pressure testing, and re-gassing.
• Ensuring system operation using existing control boxes without replacement.
• Provision of a 12-month guarantee on workmanship and parts.

The work must be carried out with minimal disruption, ensuring safety and integrity of the existing systems and infrastructure.

Technical Requirements

• Complete system replacement with new copper coils, oil separators, and associated components.
• Gas leak detection and repair, followed by system flushing, pressure testing, and re-gassing.
• Replacement of electrical components including LP/HP switches and expansion valves.
• Compressor replacement if necessary; otherwise, existing compressors are to be used.
• System commissioning, testing, and handing over in working order.
• Guarantee of 12 months on all repairs and parts.
• Compliance with relevant South African HVAC standards and safety regulations, including certification of conformity.
• Site visit prior to tendering to assess existing conditions and equipment.

Skills and Experience Requirements

• Valid CIDB registration with a minimum grade of 2ME.
• Proof of previous experience (at least three references) in HVAC plant equipment installation, repair, and maintenance.
• Valid CSD registration.
• Proof of gas certification, either through a recent (not older than 3 months) certified gas certificate or a valid written agreement with registered personnel.
• Qualified artisans/technicians with current employment proof (certified copies not older than 3 months) working on the project.
• Competence in handling HVAC systems, including leak detection, system flushing, and component replacement.
• Ability to perform site assessments and measurements by sending qualified personnel.
• Knowledge of South African HVAC standards, safety regulations, and environmental compliance.