A facility manager isn't required to be an electrical or mechanical engineer. But they are required to have enough understanding of these systems to make sound decisions: when is the system inspected? When is it repaired? When is it replaced? And how do they deal with the maintenance company confidently? This guide is written for you.
Electrical Systems in Buildings: What You Should Know
A building's electrical system consists of several main components:
The electrical system's components
| Component | Its function | Periodic maintenance requirement |
|---|---|---|
| Main distribution board | Distributing current to the building | Quarterly inspection |
| Sub-distribution boards | Distributing current to the floors | Quarterly inspection |
| Backup generator | Running the building during a power outage | Monthly test + quarterly maintenance |
| UPS system | Protecting sensitive devices from a sudden outage | Quarterly inspection |
| Lighting network | Lighting the building | Periodic inspection and replacement |
| Protection and grounding systems | Protecting people from electric shock | Annual inspection |
⚠️ Safety warning: Only qualified technicians may work on electrical panels. Any unprofessional electrical work poses a fire and shock hazard and may void the building's insurance.
Preventive Maintenance for Electrical Systems
The electrical preventive program includes:
Monthly inspection
- Test-running the backup generator under load
- Checking the generator's fuel level and fluids
- Checking emergency lighting and evacuation routes
- Monitoring the basic electrical readings
Quarterly inspection
- Inspecting electrical panels and connections
- Testing protection breakers
- Measuring temperatures on connections with a thermal camera
- Inspecting and replacing faulty bulbs
Annual inspection
- A comprehensive test of the grounding and protection system
- Reviewing and updating the electrical drawings
- Assessing the condition of cables and wiring
Mechanical Systems: Air-Conditioning, Plumbing, and Elevators
A building's mechanical systems cover three main areas:
First: Air-conditioning and ventilation (HVAC) systems
Air-conditioning is the most energy-consuming and the most costly when it fails in Saudi buildings:
| Unit type | Key monthly maintenance tasks | Risks of neglect |
|---|---|---|
| Split | Cleaning filters, checking gas | Low efficiency, compressor damage |
| Central | Checking pumps, cleaning coils | Complete shutdown, costly repair |
| VRV/VRF | Checking electronics, gas pressure | Damage to control units |
| Ventilation network | Cleaning air ducts | Poor air quality, health problems |
Second: Plumbing and drainage systems
- Inspecting the water network and detecting leaks
- Testing water pressure on the different floors
- Maintaining and cleaning water tanks semi-annually
- Checking valves and connections
- Inspecting and cleaning grease traps in kitchens
- Testing lift pumps
Third: Elevators and escalators
Elevators have special, regulated maintenance requirements:
- A maintenance contract with an approved specialized company (mandatory)
- Regular monthly inspection with official documentation
- A comprehensive annual test and renewal of the safety certificate
- Following up on users' reports with complete seriousness
📌 Note: Elevator maintenance is subject to specific regulatory and oversight requirements. You must contract with approved elevator maintenance companies to obtain the required certificates.
Key Indicators of an Imminent Fault
A good maintenance team recognizes these indicators and reports them before the fault occurs:
In electricity
- Flickering or fluctuating lighting
- A burning smell near panels or sockets
- Abnormal heat in breakers or cables
- A sudden rise in electricity consumption
- Breakers tripping frequently
In air-conditioning
- Fluctuating cooling or not reaching the desired temperature
- Abnormal sounds from the unit
- A sudden rise in the electricity bill
- Water leaking from the unit
- A bad smell when the air-conditioning runs
In plumbing
- Low water pressure on certain floors
- Damp patches on walls or ceilings
- The sound of water drops behind walls
- An unexplained rise in the water bill
- Slow sewage drainage
💡 A reporting culture: Train your employees to report any abnormal indicator immediately. A problem addressed early costs a tenth of what it costs when it worsens.
Energy Efficiency: The Role of Maintenance
Good maintenance reduces energy consumption directly:
- Clean air-conditioning filters: Save 10–15% of electricity consumption
- Tightening insulation: Reducing cold-air leakage
- Lighting maintenance: Replacing old bulbs with LED
- Fixing leaks: Every small leak wastes water and energy
- Adjusting temperatures: Every degree above 24 saves ~3% electricity
What an Electrical and Mechanical Maintenance Contract Must Provide
- A clear list of the systems and equipment covered
- A detailed preventive maintenance schedule for each system
- Specialized technicians in each field (not one technician for everything)
- Documenting every inspection or maintenance operation
- Detailed checklists for each visit
- Proactively reporting problems before they worsen
- Periodic reports covering the status of each system
Conclusion
Understanding the basics of the electrical and mechanical systems in your building makes you a smarter client and a better partner to the maintenance team. You don't need deep technical details — you need enough understanding to ask the right question and make the right decision at the right time.
Frequently Asked Questions
A building electrician has special experience in building systems: panels, generators, commercial lighting systems, and protection systems. A general technician may be sufficient for simple work, but complex systems need a specialist.
Through regular monthly testing under load (actually running the generator for 30 minutes with a real electrical load). This test reveals problems before a real outage occurs.
Yes, integrated companies provide technicians from different specialties. This model is administratively convenient and reduces coordination. What matters is verifying there are actually specialized technicians in each field.