BUILDING MANAGEMENT SYSTEM SCOPE AND DESIGN

GENERAL

Engage a controls specialist who shall be responsible for the design of the Building Monitoring System and associated electrical component control systems to meet the performance
requirements described in the specification and POINTS SCHEDULE. Refer Appendix C26A for POINTS SCHEDULE.

The controls specialist shall be responsible for the design, supply, installation, co-ordination, wiring and commissioning of mechanical control systems.

Refer BUILDING SERVICES GENERAL and BMS SERVICES – GENERAL for other general requirements.

SCOPE

The BMS system shall be Direct Digital Control (DDC) technology via Network Control Units (NCUs) and Distributed Process Units (DPUs) connected to a Local Area Network (LAN)
communication trunk.

Each BMS shall include:
(a) One PC based operator workstation, comprising processing unit, keyboard, colour monitor, mouse, and printer.

(b) Distributed Processing Units (DPUs) and Network Control Units (NCUs).

(d) Field devices.

(e) Power and control wiring associated with the MCS.

(f) Software and application programmes, and configuration thereof, as necessary for integrated operation of the MCS to suit the end user.

(g) Three only hand held tool per system for connecting to NCUs and DPUs.

DESIGN

General

The BMS of each building component shall be capable of connection to the Central BMS. The connected system shall be capable of providing individual point, DPU or NCU access coding
as necessary such that operator access to controls is able to be restricted to selected levels (e.g. data read only, low level programming, etc.) independently of their selected access level.

The communication bus systems shall be independent.

Software controlling mechanical services, other than specified global commands shall be resident in the Central BMS hardware. Failure of any component shall not prevent stand-alone
operation of sub-BMSs and vice versa.

All alarm sub-BMS reporting shall be repeated at the Central BMS workstations, without the need for operator access code input.

All graphics shall be accessible at all workstations with appropriate operator access code entry.

2 Design for Reliability

Refer BUILDING SERVICES – GENERAL: POWER QUALITY AND ELECTROMAGNETIC INTERFERENCE.

The height and location of the project makes repeated lightning strikes likely. Equipment installed shall provide a high level of reliability and show no degradation in performance due to
interference from outside sources, natural or man-made, that are present in the local environment. The Sub-Contractor shall be responsible for the adequate selection and provision
of all necessary protective measures. The Sub-Contractor shall take all reasonable precautions to avoid damage to equipment, ensure continuous reliable operation of equipment, and
minimise the effects of any damage that may occur.

Systems shall include, but not necessarily be limited to:
• Appropriate devices such as power conditioners, voltage stabilisers, harmonic filters or surge diverters to protect all equipment which may be sensitive to supply voltage conditions.

• Coarse surge diversion devices will be provided by the Electrical trade to main switchboards and at the DBs to limit surge voltages. Equipment connected downstream of these devices shall be protected from voltage surges up to the let-through voltage rating of the upstream surge diverter.

• All necessary earthing, screening, protection etc. for data, sensor and power supply cabling, so that each system will operate satisfactorily and without degradation in the local environment.

• Quick responding fine protection diodes and high performance gas filled surge voltage arresters on DDC I/Os, and if necessary optical isolation.

• Steel enclosures for all control equipment.

• System configurations such that any damage will be contained and not spread through a systems backbone wiring.

• Steel cable ducts or conduit for cable services within the services riser.

• Shielded cabling elsewhere.

.3 Control Hardware Locations

Provide NCUs or DPUs as appropriate at each MCC. NCUs and DPUs shall generally be located:
• Within Motor Control Centres (MCCs), in a segregated section of the panel, or

• Within Mechanical Control Panels (MCPs) adjacent to and powered from corresponding
MCCs, or

• For Fan Coil Units: Generally at the corresponding MCC as above (for ease of access).
Where the economics of the particular control specialist’s DPU selection, or spatial
limitations at the MCC, favour local mounting of DPUs at the FCU, they may be so
mounted, provided that, where such FCUs are exposed in an occupied space, plantroom,
or equipment room, the DPU shall be mounted in an MCP.

ELECTRICAL FOR MECHANICAL/MCS INTERFACE DESIGN

Refer CONTROLS – FUNCTIONAL DESCRIPTION, GENERAL.

INTERFACES WITH OTHER TRADES

1 Fire Protection Services

The Fire Protection Services Trade will provide an Interface Terminal Board (ITB) with labeled terminals, in each Fire Pump Room. The Fire Protection Services Trade will provide voltage
free I/O contacts wired to the ITBs. These will provide a vent system start output initiated from any pump start.

The Fire Protection Services Trade will provide an Interface Terminal Board (ITB) with labeled terminals, adjacent to the gas suppression control panels for electrical substations. The Fire
Protection Services Trade will provide voltage free I/O contacts wired to the ITBs. These will provide respective air conditioning/ventilation stop outputs initiated from respective gas flood
initiation.

The BMS Trade shall wire from the ITBs direct to the hard wired fan controls (i.e. not via the MCS).

2 Fire Alarm Services

In the event of a fire, the mechanical smoke control systems are designed to minimise the migration of smoke throughout non-fire-affected smoke zones.

The Fire Alarm System Looped LAN will be used to distribute critical fire information to appropriate field devices located in fire rated rooms. The fire resistant looped LAN is able to be
looped around the site so that each interface module has two separate information routes. It is unlikely for both routes to receive damage simultaneously.

In addition, submain cabling to MCCs that supply life safety equipment will be protected against fire damage from within the fire cell that the MCC services. The above concepts are
intended to minimise the risk of loss of life safety system control during a fire.

The Fire Alarm Trade will provide Fire Fan Control Panels in Fire Control Room, incorporating status indication and Test/Off/Auto switches for each smoke zone and life safety system.
These panels will be interfaced with the addressable Fire Alarm System

3 Mechanical Trade

The mechanical trade (Ventilation & Air conditioning) is to provide Interface Terminal Boards (ITBs) with wired voltage free contacts, adjacent to relevant equipment. The BMS Trade is to
wire from ITB to Mechanical Control System.

The BMS Services trade shall supply a pipe/duct/space mounted sensor (for input to MCS) to the mechanical Services trade.

4 Plumbing Services

The Plumbing Services Trade will provide voltage free output contacts wired to a labelled ITB located adjacent to the plumbing equipment as indicated in the FUNCTIONAL DESCRIPTION
and/or POINTS SCHEDULE.

The BMS Services Trade shall wire from the ITB to the MCS.

The BMS Services trade shall supply a pipe mounted pressure sensor (for pressure input to MCS) to the Plumbing Services trade.

5 Electrical Trade

Power Control and Monitoring System (PCMS).

The PCMS provides emergency load shedding outputs to the MCS. The MCS shall initiate shedding of VAC Services plant. The PCMS shall monitor the results of MCS load shedding via
electrical metering of MCC submains.

PCMS/MCS interfaces shall be located as required to provide sufficient repetition of outputs such as to ensure the MCS achieves the required response times specified elsewhere, with a
high level of reliability. Co-ordinate with PCMS trade.

.6 Gas Services

The Gas Services Trade will provide voltage free output contacts wired to a labelled ITB located adjacent to the gas motorized isolation valve as indicated in the FUNCTIONAL DESCRIPTION and/or POINTS SCHEDULE.