Measurement
Temperature and humidity sensors, 0–100 Pa differential pressure transmitters for clean zones, filter pressure switches, CO₂ and VOC sensors, airflow sensors, chilled water flow meters.
HVAC AUTOMATION AND BMS / DESIGN, INSTALLATION, SERVICE
Parameters under control.
Equipment working as one.
A BMS ties air handling units, chillers, heaters and sensors into one system: it holds the parameter, raises alarms before a failure and records the course of the process as audit documentation. We design the 4 layers of the system (measurement, control, actuation, supervision) and integrate equipment over Modbus RTU/TCP, BACnet, M-Bus and OPC UA. Implementation for one hall takes 6–12 weeks.
Send an enquiry- System layers
- 4
- Differential pressure transmitter
- 0–100 Pa
- Pressure cascade
- 10–15 Pa
- -20% fan airflow
- approx. -50% power
- Implementation for a hall
- 6–12 weeks
- Protocols
- Modbus, BACnet, M-Bus, OPC UA
CLIMA LINE / CONTROLS COMMISSIONINGSee the project
THE SOLUTION STARTS WITH THE PROCESS
One view of the whole installation.
One window onto the entire infrastructure: visualisation instead of walking round the control panels. The factory controller of an air handling unit looks after its own unit. The BMS sees the whole infrastructure, maintains the 10–15 Pa pressure cascade in clean zones and keeps a trend archive for audit.
Control
Instrumentation and control (I&C) design, control panel prefabrication, PLC/DDC programming with PID control of heating, cooling and humidification, and pressure cascade logic.
Actuation and integration
Damper actuators, two- and three-way valves, variable speed drives on fans and pumps. Integration of multi-vendor equipment over Modbus RTU/TCP, BACnet, M-Bus and OPC UA. We also select smoke extraction systems for the specific facility.
Supervision
Browser-based visualisation, trend archive, alarms and audit reports.
REQUIREMENT → PARAMETER → DELIVERY → PROOF
Parameters,
not promises.
Every requirement has a parameter, a delivery method and proof that can be checked after commissioning.
| Requirement | Parameter | How we deliver | How we prove it |
|---|---|---|---|
| Pressure cascade in a clean zone | overpressure of 10–15 Pa, 0–100 Pa differential pressure transmitter | damper control with cascade logic in the PLC, overpressure loss alarm | continuous differential pressure trend in the BMS archive, audit report |
| Process temperature tolerance of ±1 °C | sensor uncertainty tighter than ±0.5 °C, PID control | sensor selected with a margin against the tolerance, controller tuning at commissioning | continuous temperature recording in the trend archive |
| Lower energy use by fans and pumps | power varies with the cube of speed: -20% airflow ≈ -50% shaft power | variable frequency drives instead of fixed-speed operation, compressor capacity control, schedules, free cooling, heat recovery | load profile recorded before and after the upgrade |
What does HVAC automation deliver in a manufacturing plant?
Proof that the parameter was held is the first function of a BMS in a regulated environment. Continuous recording of temperature, humidity and differential pressures is a condition of audit in pharmaceuticals, medical devices and food production: without a record there is no way to show that conditions were maintained between periodic qualifications.
Early warning alarms move service from breakdown mode to planned mode: the system flags parameter drift and filter fouling before process limits are exceeded. In clean zones the controls maintain an overpressure of 10–15 Pa between rooms and raise an alarm when it is lost.
What does an HVAC control system consist of?
An HVAC control system has 4 layers: measurement, control, actuation and supervision. The split matters at retrofit: in most plants 1–2 layers need replacing, not the whole system.
Measurement means temperature and humidity sensors, 0–100 Pa differential pressure transmitters for a 10–15 Pa cascade, filter pressure switches and CO₂ and VOC sensors. Sensor accuracy must be tighter than the process tolerance: with a ±1 °C requirement, a sensor with ±0.5 °C uncertainty uses up half the tolerance budget before the controller even starts working.
Control means a PLC or DDC in an I&C panel with PID control and pressure cascade logic; this is where it is decided whether the system can be extended or will be locked into one vendor’s software. Actuation means actuators, valves and variable frequency drives: fan power varies with the cube of speed, so reducing airflow by 20% cuts shaft power by around 50%.
Where do controls decide the outcome?
The narrower the process tolerance, the bigger the role of control: in pharmaceutical cleanrooms the controls are responsible for the 10–15 Pa pressure cascade and the audit record, in process cooling for chilled water temperature under variable load, in process ventilation for extraction capacity depending on the workstations in use.
We most often upgrade the control and actuation layers and keep sound mechanical equipment: a new controller and drives can cost less than a new air handling unit and deliver a comparable effect on the energy bill. From 11 January 2027, continuous temperature recording at workstations will also be the simplest evidence during an inspection by the National Labour Inspectorate (PIP) under Polish OHS regulation § 30a.
FROM BRIEF TO COMMISSIONING
A coherent design.
Clear next steps.
- 01
Survey
List of equipment, its interfaces (Modbus RTU/TCP, BACnet, M-Bus, OPC UA or I/O signals) and process tolerances.
- 02
Control logic
Schedules, capacity control by variable speed drives, pressure cascade, alarm thresholds and trend retention.
- 03
Commissioning
PID controller tuning, staged changeover of equipment during shutdown windows, training for maintenance staff. 6–12 weeks for one hall.
BEFORE WE START
Good to
know.
RELATED SOLUTIONS AND PROJECTS
LET’S START WITH YOUR PROCESS
Your technology.
Our engineering.
Describe what your production needs: facility, parameters, deadline.
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