Case studies

Real BMS capability across real sites.

Selected projects demonstrating Lime's controls engineering, integration, programming, commissioning and ongoing support capability.

Switchboard interior with control devices

Healthcare

Bendigo Health

Staged redevelopment and systems integration

Facility: Hospital redevelopment including the Energy Centre, conference centre and car park / helipad.
Requirement: Modify and extend the building automation environment through a staged redevelopment while integrating new and existing building systems.
Lime BMS scope: Controls work across multiple stages, including modifications to the existing Sphere BMS environment, deployment of Siemens Apogee BMS technology and development of a custom interface between the existing Sphere BMS and the project access-control environment.
Technology: Sphere Systems BMS · Siemens Apogee BMS · Integration with Gallagher access-control environment and CCTV systems

Outcome

A staged controls solution that allowed existing and new systems to operate together while redundant BMS infrastructure was progressively retired.

Controller modules inside a BMS enclosure

Education

Greater Shepparton College

Centralised campus air-conditioning control

Facility: Multi-building secondary college campus.
Requirement: Provide centralised scheduling and BMS visibility for a large number of existing VRV, rooftop and stand-alone air-conditioning systems while retaining local/manual operational requirements.
Lime BMS scope: Implementation of a virtual BMS server environment with four Niagara supervisors, integrated with Honeywell controls and the connected HVAC systems.
Technology: Niagara supervisor software · Honeywell controls · Integration with Mitsubishi VRV/DX and other connected HVAC equipment

Outcome

Central scheduling and BMS control across multiple buildings, with a scalable architecture able to accommodate additional connected equipment.

Variable-speed drives in a controls enclosure

Education

Catherine McAuley College

Siemens BMS controls for sports expansion

Facility: Secondary college sports expansion including a sports hall.
Requirement: Provide BMS control and monitoring for the new facility, with the BMS operated from the school's virtual server environment.
Lime BMS scope: BMS controls design, Siemens controller and network equipment, programming, graphics and commissioning. The control strategy included CO₂-based economiser logic for the sports-hall ventilation system.
Technology: Siemens Apogee / Desigo controls

Outcome

The sports-facility mechanical services are monitored and controlled through the BMS, with outside-air operation managed by the programmed CO₂ control strategy.

BMS operator touchscreen on a control panel

Specialist facility

Horsham Glasshouse

Honeywell BMS maintenance and improvement

Facility: Glasshouse environment with mechanical plant, roof vents and blinds under BMS control.
Requirement: Resolve ongoing system and graphics issues, improve usability and keep the Honeywell controls environment supportable and current.
Lime BMS scope: Ongoing Honeywell BMS maintenance, fault investigation, software/graphics improvements and operational refinement.
Technology: Honeywell building-automation software and hardware

Outcome

Improved central operation and confirmation of the controlled mechanical plant, roof vents and blinds from the BMS operator station.

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