Apex Technical Services has recently completed works on the Horizon Power Upgarde. This project involved the supply and installation of Mechanical Services in a fitout project. Apex was engaged by Shape (Builder).

This project included:

  • Supply and installation of new AC’s and BMS as designed by the Engineering Consultants.
  • Supply and installation of new duct and diffusion
  • Supply and installation of new fire dampers

Scope of work

Within the scope of this project the contractor will undertake but not be limited to;

  • Provide pre filter’s for the floor air handling units – remove post
  • Provide all new supply air diffusers fittings and air boots as indicated on the drawings, together with new acoustic flexible duct and butterfly dampers as
  • Provide mechanical services shop drawings at a scale of 1:50 for review and approval prior to any works starting on
  • Provide linear grilles and air boots for supply and return air to all areas with flush ceilings. Non used sections of linear to have black expanded mesh
  • All new linear slot boots to be internally insulated and come complete with metal spigot in neck that is adjustable from the face of the grille.
  • Relocate air/light fittings as indicated on the drawings – provide new acoustic flexible
  • All new & relocated diffusion must be hung from slab. No load to be imparted to ceiling structure. Max drill depth in slab
  • Relocate sensors  as       Final locations to be confirmed on site prior to installation in conjunction with the Interior Designer.
  • Advise head contractor of access panel requirements to ensure the safe service and maintenance of existing and new mechanical services equipment can be
  • Existing ‘HPCC’ and ‘IT DATA CENTRE’ are to remain operational at all time throughout the project.
  • Provide new supply, relief and exhaust air ductwork as indicated on the
  • Modify existing and provide new supply air ductwork as indicated on the
  • Repair ductwork and seal air tight where ductwork connections have been
  • Commissioning of all new and existing equipment to ensure correct operation and optimum performance is achieved.
  • Air balancing of all new and existing air conditioning
  • Mechanical contactor to allow five (5) hours of a senior commissioning technician / engineer for the first month of occupation and two (2) hours per month thereafter for the warranty period – allow to make minor changes to address any tenant comfort issues. – per pod
  • Mechanical contactor to demonstrate full operation of the system to the incumbent mechanical sub- contractor and base building engineers – particularly in relation to on floor return/relief air pressurisation. Mechanical contactor to allow for the costs of the third
  • Mechanical contactor to provide pressure drop calculations and engineering checks submitted and signed by a certified mechanical engineer for approval.
  • Provide solid ‘spiro’ ductwork for all flexible ductwork that passes through slab to slab walls. Ductwork to be sealed in accordance with acoustic engineers
  • All services that penetrate new acoustic vinyl above ceiling are to be sealed in accordance with acoustic engineers
  •  Provide acoustic transfers and fire dampers for any penetrations of air conditioning services through fire and acoustic environments – refer to architectural drawings for
  • Pod 1 – The Incubator room – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working
  • Pod 1 – Meeting Room 1 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 1 – Meeting Room 2 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 1 – Meeting Room 3 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 1 – Meeting Room 4 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 1 – Communications Rooms – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable.
  • Pod 1 – Tea Prep – Provide in line exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Fan to be controlled via lighting
  • Pod 2 – Open plan 1 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 2 – Open plan 2 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 2 – Staff Breakout – Provide in line exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Fan to be controlled via lighting
  • Pod 2 – Utilities – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable.
  • Pod 2 – Lab/Workshop – Provide in line exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Fan to be separately switched and discharge to atmosphere.
  • Pod 3 – Open plan 1 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 3 – Open plan 2 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 3 – Tea Point – Provide in line exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Fan to be controlled via lighting
  • Pod 3 – Utilities – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable.
  • Pod 4 – Open plan 1 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 4 – Open plan 2 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 4 – Tea Point – Provide in line exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Fan to be controlled via lighting
  • Pod 4 – Utilities – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable.
  • Pod 4 – Communications Rooms – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable.
  • Pod 5 – Open plan 1 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 5 – Open plan 2 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 5 – Tea Point – Provide in line exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Fan to be controlled via lighting
  • Pod 5 – Utilities – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable.
  • Pod 5 – Communications Rooms – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable
  • Pod 6 – Open plan 1 – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 6 – Boardroom – Provide an air cooled 3 pipe ‘Daikin’ VRV fan coil unit complete with associated ductwork, fittings, controls, connection to BMS, refrigeration pipework, condensate drain (with pump) etc to form a complete working solution
  • Pod 6 – Tea Point – Provide in line exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Fan to be controlled via lighting
  • Pod 6 – Utilities – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable.
  • Pod 6 – Communications Rooms – Provide thermostatically controlled exhaust fan complete with associated ductwork, fittings, controls etc. to form a complete working solution. Thermostat to be set at 25 degrees Celsius (adjustable) and lockable
  • Pod 1 & 4 – provide new air cooled ‘Daikin’ VRV condensing unit complete with concrete plinth, anti vibration mounts etc. to form a complete working
  • Pod 2 & 5 – provide new air cooled ‘Daikin’ VRV condensing unit complete with concrete plinth, anti vibration mounts etc. to form a complete working
  • Pod 3 & 6 – provide new air cooled ‘Daikin’ VRV condensing unit complete with concrete plinth, anti vibration mounts etc. to form a complete working
  • Allow for additional five (5) new 600X600 swirl type supply are diffusers complete with internally insulated cushion head, adjustable metal spigot, 3m acoustic flex – per
  • Provide new ‘Daikin’ central controller for all new supplementary air conditioning. Central controller to be connected to base building Final location of controller to be confirmed on site.
  • Provide new ‘Daikin’ remote sensors for all new supplementary air conditioning
  • Provide new ‘Daikin’ BACnet gateway to allow connection of new system to existing
  • Pod 1 – Provide new 24 pole mechanical services expansion board complete with 160A main switch and 50mm² 4C XLPE+16mm E submain from tenancy DB to new expansion board. Enclose new submain in conduit and label. Provide new meter to match
  • Allow to relocate one (1) base building fan coil unit including ductwork, pipe work etc – per
  • Provide fire and/or smoke signal to all non computer room supplementary air conditioning units and shut down units and outside air fans when signal occurs including connection to the base building fire relay and associated cabling.
  • Provide fire and/or smoke signal to all supplementary air conditioning units and shut down units and outside air fans when signal occurs including connection to the base building fire relay and associated cabling.
  • Provide new outside air systems complete with fans, ductwork, penetrations, fire dampers, roof cowls etc. to provide a complete working
  • Provide one (1) new C02 sensor connected to BMS per fan coil
  • Provide new modulating motorised dampers at outside air spigot of each air conditioning unit. Damper is to be interlocked with corresponding air conditioning unit/fan and controlled via new CO2 sensors within
  • Provide condensate pumps and pipe work back to sewer/waste stack for air conditioners as required.
  • Provide an approved drip tray complete with condensate drain for each air conditioning
  • Provide moisture detection sensor within safety tray of all air conditioning units. If moisture detected air conditioning unit to shut off and provide fault alarm to local labelled visual indicator and BMS.
  • Provide acoustic blanket between ceiling and air conditioning units to ensure noise levels are in accordance with AS 2107:2000. Nominal size 10m² per air conditioning
  • Acoustically wrap new air conditioning units and fans to ensure noise levels are in accordance with AS 2107:2000.
  • Connect power supplies to the air conditioning units from supplies
  • Submit a sample of each item for approval prior to placing
  • Provide Four (4) hours of onsite training at the completion of the project with the client to demonstrate how to operate the system – per
  • Provide ‘Traffolyte” labelling of all new equipment. Label to be permanently fixed to corresponding
  • Provide as constructed drawings.
  • Provide twelve (12) months warranty maintenance with four (4) maintenance visits for all equipment provided under this
  • Provide twelve (12) months defect liability period on all equipment and labour provided under this contract.
  • Provide twenty four (24) hour “call out service” for all equipment provided under this contract for the duration of the defects liability period. Call outs to be attended within two (2) hour time frame from placement of

Controls

All controls works to be completed by base building incumbent controls contractor.

The controls associated with this project will:

  • Initiate units to maintain space temperature of 22o+ 5oC.
  • Have controllers for supplementary a/c units, which are to be ‘Daikin’ proprietary wall mounted controllers.
  • Interface the supplementary air conditioning systems with existing
  • Contractor to allow to update all graphics as
  • Relocate sensors as required. Final locations to be confirmed on site prior to installation in conjunction with the Interior Designer. Allow for relocation of five (5) sensors per floor during warranty
  • Recalibrate all existing temperature sensors.
  • Commission system and provide results and literature for insertion into O & M
    • OPEN PLAN SUPPLEMENTARY AIR CONDITIONING UNITS (INC O/AIR FANS)
      • PAC units are enabled and available to run 24/7 and operate in conjunction with base building A/C
      • Units are interfaced with the base building BMS and air conditioning System within zone served by unit.
      • The PAC will be activated via start signal from BMCS.
      • Signal will initiate unit if the internal load controlled by the base building air conditioning System is insufficient to maintain the temperature within the
      • The PAC unit will only be activated if the temperature range is exceeded for 5mins or the CO2reading from the sensor within the zone requires additional conditioned outside air to be supplied. Unit cooling cycle will be disabled when room temp drops below set point for more than 5mins. Once initiated PAC unit fan will run continuously until timeclock signal disables
      • Outside air is provided via a new tenant outside air system. The system is to be turned on/off by the The outside air system will be turned off if the smoke spill fans are required to operate.
      • Air is ducted from outside air system to a motorised damper fitted to A/C.
      • On A/C start base building tenant outside air fan will be initiated, CO2 sensor located within space will sample air quality & modulate damper to maintain air
      • Units to have run fault indication at front
      • Cooling signal for unit to start:
      • AC compressor to cycle on cooling demand
    • MEETING ROOM SUPPLEMENTARY AIR CONDITIONING UNITS
      • PAC units are enabled and available to run 24/7.
      • Start signal via locally mounted pushbutton timed
      • Units to have run/ fault indication at front end and local run and fault indication
      • Signal will initiate unit if the internal load controlled by the base building air conditioning System is insufficient to maintain the temperature within the
      • Outside air is provided via a new tenant outside air system. The system is to be turned on/off by the The outside air system will be turned off if the smoke spill fans are required to operate.
      • Air is ducted from outside air system to a motorised damper fitted to A/C.
      • On A/C start damper to drive open and base building tenant outside air fan to
      • Units to have run fault indication at front
      • Cooling signal for unit to start:
      • AC compressor to cycle on cooling demand
    • COMMS ROOMS

Provide one (1) computer room environment monitoring system per comms room. Standalone system with GSM dial out for the following alarms.

  • Computer room high temperature >26o

Commissioning

Engage Stuart Cocks from Caldera Consulting Group M : 0402 257 136 136 (or approved equal 3rd Party commissioning company) to carry out the air balancing associated with this project:

REFER to Section “MECHANICAL COMMISSIONING” of this specification.

  • Balance base building air conditioning system to + or – 10% of the design
  • Balance supplementary air conditioning system to + or – 10% of the design

Associated work by the Head Contractor

The head contractor shall provide the following:

  • Removal, relocation, replacement, and reinstatement cutting of all ceiling tiles, T-bars and ceiling hangers as necessary for the services
  • All penetrations for services access and fire rating penetrations required. All penetrations are to be approved by the building owner’s preferred structural engineer and undertaken after office hours. Allow for all associated cost of the structural engineering approval and after hours
  • Cut flush plaster ceiling and tile ceiling for the installation of
  • Removal of all site rubbish.
  • Cut and make good of electrical perimeter and base building skirting
  • All structural support
  • Site amenities. Water and temporary power.
  • Access to be provided for the installation.
  • Cleaning of the site on completion of the installation to an acceptable commercial standard inclusive of light fittings.
  • All protective sheeting or materials.
  • Hidden framed access panels as
  • Provide penetrations, cut, patch, chase and make good the existing building structure and the new partition layout as
  • Co-ordinate any associated work required. This liaison is to include coordination of access requirements to one side of partitions until cabling is complete and for floor penetrations necessary to service island work stations.
  • Remove, reinstate or cutting of floor and carpet tiles necessary to accomplish the works. Replace existing floor and carpet tiles as necessary to provide an “as new”
  • Cutting of floor tiles within Computer room for cable access as
    • CEILING ACCESS PANELS

The mechanical services contractor shall make their own assessment of access panel requirements for all servicing, commissioning, future maintenance, etc. The mechanical services contractor shall advise the Head Contractor of any access panels required for the Head Contractor to include in his tender price. No additional access panels will be paid for during the construction period. Note – all final access panel locations are to be submitted to the Engineer for approval.

  • SEALING OF PENETRATIONS

All penetrations of trays and / or ducts through the building fabric of chambers subject to suction or pressurisation shall be sealed.

Floor penetrations for cable risers shall be made weatherproof progressively during the construction of the works to minimise weather damage or effects of internal flooding within the building.

Wherever services penetrate walls, floors or ceilings, acoustic sealant shall be supplied and installed to maintain a degree of acoustic separation at least equal to the materials penetrated.

Where services penetrate fire walls, ceilings, floors or other fire rating barrier, sealant for those penetrations shall be sealed to the approval of the following Authorities.

Building Authority Fire Authority Supply Authority

The preferred method of sealing penetrations around cables and cable trays shall be by the use of fire retardant pillows packed tightly both sides of the penetrations. Pillows shall be Pyropanel Intumex PS pillows or equal complying pillow system. Internal fire barriers using intumescent fire retardant materials hall be used within all ductwork passing through the fire rated walls or floors. All fire retardant materials used shall have been tested C.S.I.R.O. Building Research Section to maintain the intended fire rating.