The scope of work relates to the maintenance and operation of the primary HVAC system components. The service provider is expected to be knowledgeable and experienced in operating and maintaining similar systems.  includes the following activities but not limited to:

• Semi Comprehensive service agreement for 2 chillers. Includes all service consumables, spare parts and breakdowns, but excludes major assemblies as detailed more specifically below..

• FAHU with HRW - 2 Nos. Including FAHU Bag filter replacement 2 times per year - 2 sets and drive belts as required. Bag filter manual cleaning monthly 10 times per year. HRW disinfection and cleaning 4 times per year.

• Chilled water pumps and valves - 5 Nos.

• Chilled water chemical dosing unit and pressurisation unit. Including all chemicals for top ups. Excludes refills.

• 12 monthly maintenance visits to monitor the system efficiency and make the required adjustments to keep the system operating at peak efficiency.. 

• Quarterly microbiology analysis (4 samples/year) for closed chilled water system per annum. Includes monitoring water quality and contamination levels to advise on system flushing requirements.

• Vendors should only submit a fully detailed proposal after site visit to ensure the full scope of work required and access conditions are fully understood.

• This is an output based service agreement where the delivery of the services is based on ensuring that the equipment is fully functional and continuously available for cooling the Premises to meet the demands of the Owners. The Service Provider shall provide the necessary resources required to deliver the Services in accordance with the preventative maintenance service schedule set by the Original Equipment Manufacturer and any reactive maintenance required to rectify any cause of breakdown. The service schedule may be varied at any time by the Employer’s Representative to suit the needs of the Premises. The Service Provider should maintain the same personnel for continuity and efficiency of the service delivery. The Employer’s Representative reserves the right to disapprove of any service provider’s personnel on reasonable grounds.

• The Service includes all parts and consumables required for carrying out the scheduled maintenance as required by the OEM operating and maintenance manuals or Industry Best Practise. This includes all:

• [Chillers:] lubricants, refrigerants, nitrogen, seals, gaskets, filters, solenoids, valves, economisers, solders, flux, tape, testing equipment, tools, wires, fuses, breakers, sensors, transducers, electronic relays, circuit boards, displays, insulation, pipes, hoses, coil cleaning chemicals, anti corrosion paint and components, etc. Excluding replacement or overhauling of major assemblies such as compressors, condensers, coolers, motors and chassis or frame, leak repair work to coolers and condensers. 

• [Fresh Air Handling Units and Central Exhaust] lubricants, seals, gaskets, filters twice annually, insulation, drive belts, solders, flux, tape, testing equipment, alignment equipment, tools, wires, fuses, breakers, sensors, transducers, pipes, hoses, coil cleaning chemicals, heat recovery wheel cleaning chemicals, paint and components, etc. Excluding replacement of major assemblies such as cooling coils, motors, fans, actuators, valves and chassis or frame.

• [Pumps] lubricants, seals, gaskets, paint, cleaning chemicals, bolts, carbon brushes, terminal contact cleaning chemicals, shear pins, alignment tools, anti vibration mountings, calibration equipment etc. Excluding motors, windings, impellers and bearings.

• [Dosing and make-up pressure pumps] lubricants, seals, gaskets, cleaning chemicals, dosing chemicals, floats, pressure switches, level sensors, unions, hoses, paint, calibration and testing equipment, etc. Excluding pressure vessels, pumps, motor windings, bearings, impellers.

• [Smoke Control Fans] Check operation quarterly (may require liaising with the Fire Alarm Contractor) and general maintenance, cleaning contacts, lubricating bearings and checking blades are secure.

• General exclusions; Eddy current testing, damage caused by external sources, BMS related works, works caused by deficiency of design or installation, any extensive steel or civil works including full repainting.

• 24/7 call out service for breakdowns to be provided.

• Provide information, guidance and operating instructions to the permanent technical staff located in the building on proper and safe operation and monitoring of the equipment covered under this agreement.

• Provide Energy Management services by adjusting all valves, pumps, VFD, PLC, Chillers and Air Handling Units to maximise operating efficiency and minimise energy consumption with the changes in seasonal temperatures and cooling load demands.

• Attendance staff during rebalancing, if necessary. If it becomes necessary due to poor zone cooling in any floor or section of the building, the service provider will be required to provide their technical and service support along with the main MEP/FM staff to measure and rebalance the air supply and exhaust and chilled water supply and return flow balancing. This will be considered as part of the contracted service scope.

• The chosen contractor is expected to have a sound knowledge of energy saving requirements and technologies and is expected to provide advise, suggestions and costings for implementing new equipment and IOT technologies that can offer substantial savings during the operation of the cooling and air handling equipment.

Important: The service provider must visit the site and verify the quantity and condition of assets covered under the maintenance agreement.