St John of God Midland Private Hospital, located in Midland, Western Australia, is a new 123-bed private hospital purpose-built to meet the growing healthcare needs of Perth’s eastern corridor, including Midland and surrounding Wheatbelt communities.

Planned to open in August 2026, the hospital features eight operating theatres, a Cath Lab with advanced technology, and patient-focused facilities designed to provide a contemporary, welcoming environment that enhances care and healing for patients, families, and clinicians alike.

Our Services

Dewick & Associates provided comprehensive O&M manuals for the hospital’s critical mechanical services and medical gas systems, supporting both commissioning and long-term facility management. The documentation is structured, technically accurate, and aligned with regulatory requirements, ensuring it is both practical and accessible for builders, hospital staff, and maintenance teams.

Technical authoring of O&M Manuals enabling efficient plant operation and effective maintenance for equipment longevity, including:

• Detailed project, emergency and manufacturer contact lists
• Technical descriptions of installed systems 
• Clear operating instructions
• Safety in maintenance guidance and preventative maintenance log sheets
• Fault finding instructions for each installed system
• Schedules of equipment and associated manufacturer’s literature
• Asset registers which will be fed into and used by the Facility Management system. 
• Section for the insertion of certificates, commissioning reports and as-installed drawings
• Provided inline with the clients specific format

The Mechanical and Gas Systems include:

Medical Gas Systems O&M Manual

The manual covers the medical gas systems serving Ground Floor to Level 4, commissioned by Centigrade Mechanical Contracting Pty Ltd in March 2026.

Scope of Installation:

• Medical Gases: Oxygen, Medical Breathing Air, Nitrous Oxide, Carbon Dioxide, and Instrument Air Systems: Scavenger and Suction
• Equipment: Medical air compressors, receivers, desiccant dryers, central scavenging units, medical vacuum suction pumps, instrument air compressor
• Infrastructure: 18 isolation valve boxes, 20 Medical Gas Alarm Panels (MGAPs), associated pipework, electrical services, and automatic controls

Benefits for Stakeholders:

• Builders: Supports commissioning, compliance checks, and handover verification.
• Hospital Staff: Clear guidance on safe operation, routine checks, and emergency procedures.
• Patients: Ensures reliable, uninterrupted delivery of critical medical gases, directly supporting patient safety and care quality.

Mechanical Services O&M Manual

Commissioned in February 2025, this manual details the hospital’s critical mechanical services installation, encompassing heating, ventilation, air conditioning, and specialised systems.

Key Mechanical Systems:

• Thermal Plant: Three air source heat pumps (HHW), three chillers (ChW), one cooling tower (CW), pumps, buffer tanks, and ancillary equipment including chemical dosing and filtration systems
• Air Handling & Conditioning: 31 ChW/HHW air handling units (AHUs), 18 ChW/HHW fan coil units (FCUs), 7 split ducted air conditioning systems, 1 wall-mounted split AC
• Ventilation: Kitchen ventilation, 54 ducted general exhaust systems, smoke exhaust systems, toilet exhaust, pressurisation systems for the Central Comms Room and stairwells
• Specialised Equipment: 101 variable air volume (VAV) terminal units, 12 resistive steam humidifiers, 2 in-row computer room AC (CRAC) units

Benefits for Stakeholders:

• Builders: Provides accurate documentation for commissioning, system verification, and project handover.
• Hospital Operators: Enables proactive maintenance, troubleshooting, and system optimisation.
• Patients: Supports a comfortable, safe environment with reliable HVAC and ventilation systems essential for clinical care.

Dewick & Associates also provided commissioning plans for the project. This strategic document outlines the process, schedule, and responsibilities for testing a building’s systems to ensure they operate exactly as designed, including:

• Technical descriptions of installed systems
• Requirements of the commissioning process
• Equipment certification and calibration details
• System specific commissioning procedures 
• Detailed Inspection and Test Plans (ITP’s)
• Commissioning test record sheet templates
• Green Star (AU) compliant  

By delivering high-quality, accessible manuals, we help sub-contractors and the builder meet project obligations, enable hospital teams to operate and maintain systems effectively, and ultimately support patients with safe, reliable, and comfortable hospital environments.

Have an inquiry? Contact us.
Want to find out about other projects? Check out our project portfolio.

References and Sources

Image credit – Supplied by St John of God Midland Private Hospital.

Medical Gas and mechanical Services Provider – Centigrade Mechanical Contracting is made up of four divisions work from our Head Office in Balcatta, Perth. These specialised teams can work collectively or separately on projects to meet client needs and delivery. Centigrade has a proven track record in delivering quality projects safely, on time, and within budget to deliver our commitments to our clients. The focus sectors of their operations are Commercial, Industrial, Healthcare, Educational and Resource.

Project Client– St John of God Midland Private Hospital is a contemporary private healthcare facility in Perth’s eastern suburbs, operated by St John of God Health Care and opened in 2015. It provides specialist medical and surgical services with a focus on patient-centred care, modern facilities, and access to leading clinicians for the surrounding metropolitan and Wheatbelt regions.