MEP vs ELV: Detailed Guide for Hospital Facilities Management and Building Projects MEP and ELV are two closely connected disciplines in modern buildings. MEP provides the essential mechanical, electrical, plumbing, and life-safety infrastructure, while ELV systems support communication, security, monitoring, automation, and integrated building operations. In hospitals, successful MEP–ELV coordination is especially important because equipment failures, incorrect control sequences, or poorly coordinated interfaces can affect patient safety, clinical operations, and utility continuity. 1. Understanding the difference MEP — Building Infrastructure Mechanical, Electrical and Plumbing MEP systems generate, distribute, and manage the physical services needed to operate a building. HVAC, chillers, AHUs, FCUs and ventilation Electrical power distribution and lighting Water supply, drainage and plumbing Firefighting systems Standby generators, UPS and associated infrastructure Medical gas...
8 Steps of a Gemba Walk — Practical Guide for MEP, HVAC & Facility Management
A Gemba Walk is a Lean Management practice in which managers visit the actual workplace to observe how work is performed, understand problems, engage with employees, and identify opportunities for continuous improvement.
The Japanese word Gemba means “the actual place.” In Facility Management, this may be a chiller plant room, an AHU room, a hospital maintenance workshop, a central utility area, or a building maintenance site.
The objective is not to blame staff. It is to understand the process, improve safety, reduce waste, enhance reliability, and deliver better service.
The 8 steps at a glance
1. Identify the purpose
Define the problem or improvement objective before visiting the workplace.
Example: Reduce repeated chiller alarms or delayed maintenance work orders.
2. Understand the process
Review the SOP, workflow, maintenance history, KPIs, and expected operating standards.
Example: Understand the chilled-water system's normal operating sequence before observing it.
3. Select the right time
Visit when the process is operating and the relevant activity can be observed safely.
Example: Observe the plant during peak cooling demand or a routine shift handover.
4. Go with respect
Explain the purpose, listen to the team, and ask open-ended questions without assigning blame.
Example: “What makes this maintenance task difficult to complete on time?”
5. Observe the process
Watch the work as it happens. Look for delays, rework, unsafe conditions, unnecessary movement, and process variation.
Example: Check whether pump readings are recorded correctly and abnormal readings are escalated.
6. Go where value is created
Visit the actual point of work rather than relying exclusively on reports or meetings.
Example: Inspect the equipment, work order, tools, spare parts, and maintenance records at the location.
7. Compare actual vs. ideal
Compare observed performance with approved standards, SOPs, targets, and expected results.
Example: Compare actual chilled-water supply temperature and return temperature with design and operating criteria.
8. Follow up and improve
Record findings, assign responsibility, agree on deadlines, implement corrective actions, and verify the results.
Example: Resolve recurring pump faults, monitor repeat failures, and update the maintenance procedure if required.
Practical example: Gemba Walk in a hospital chiller plant
Suppose a facility manager notices repeated chilled-water temperature complaints in critical hospital areas.
Gemba Walk — Field Example
Observation
Review chiller readings, pump operation, BMS trends, valve positions, and operator logbooks.
Ask the team
Are the alarms recurring? Are sensors calibrated? Is the required water flow available? Are operating procedures being followed?
Identify the gap
Compare actual temperature, differential pressure, flow, and equipment status against approved design and operating limits.
Take corrective action
Investigate the root cause, correct confirmed faults, assign responsibilities, and monitor performance after the intervention.
The key principle is to verify the cause before recommending a solution. A temperature complaint may result from inadequate flow, a control-valve issue, sensor error, incorrect scheduling, or another problem. The Gemba Walk helps establish what is actually happening.
Questions to ask during a Gemba Walk
Area | Useful question |
|---|---|
Safety | Is the task being performed safely? |
Standardization | Is the approved SOP being followed? |
Quality | Are the required readings and checks satisfactory? |
Equipment | Are there recurring faults or abnormal conditions? |
Workflow | What causes delays or unnecessary work? |
People | What difficulties does the team experience? |
Improvement | What change would make the work safer or easier? |
Follow-up | How will we verify that the problem is resolved? |
Gemba Walk action tracker
Use this simple template to convert observations into measurable improvement.
Finding | Action | Responsibility | Target date | Verification |
|---|---|---|---|---|
Repeated pump alarm | Investigate root cause | Mechanical team | Agreed date | Alarm recurrence |
Incomplete inspection records | Improve checklist and review | Shift supervisor | Agreed date | Record compliance |
Delayed spare parts | Review critical-spares availability | Stores / Maintenance | Agreed date | Waiting time |
Common mistakes to avoid
Treating the walk as a staff performance inspection.
Making assumptions without observing the process.
Interrupting critical work or creating safety risks.
Focusing only on equipment instead of the complete workflow.
Recommending solutions before identifying root causes.
Recording observations without assigning follow-up actions.
Closing actions without checking whether the improvement worked.
Gemba Walk and continuous improvement
A Gemba Walk works best when linked with the PDCA cycle:
PLAN
Define the problem and target.
DO
Test the improvement.
CHECK
Measure the results.
ACT
Standardize or adjust.
Repeat the cycle to sustain continuous improvement.
For Facility Management, useful measures include equipment availability, repeat-failure rate, preventive maintenance compliance, work-order response time, energy consumption, safety observations, and corrective-action closure.
Final takeaway: Gemba Walk is not about managing from a desk. It is about going to the workplace, observing the actual process, listening to people, identifying gaps, and ensuring that improvements deliver measurable results.
Go and see → Ask and understand → Identify gaps → Improve → Verify results.
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