VRV / VRF retrofit automation

Automate the VRV / VRF system you already own.

AmbiAutomation, part of the Ambimat Group, connects existing VRV and VRF air-conditioning systems to an on-site automation server and mobile application — for centralized HVAC control, scheduling, zone-level visibility, and energy optimization. No rip-and-replace.

Request a Demo Explore VRV Automation On-site server spec

Hardware, firmware, supervisory application, and field deployment — under one engineering organisation. Deployed across multiple commercial buildings in India.

BACnet IP MODBUS RTU IP65 NB-IoT / CAT 1 Edge logic
On-site automation server

An industrial gateway that integrates with your HVAC fleet.

The HVAC Bridge Board is a hardened, IP65 on-site server. BACnet IP and MODBUS RTU on the equipment side; encrypted Wi-Fi, Ethernet or cellular backhaul on the network side. Edge logic that keeps running when the internet drops.

See the spec sheet Request the brochure
RS232 / RS485 1.5 kV galvanic isolation Edge schedules Cellular fallback
Mobile + web app

Run the building's HVAC from a phone.

One application for every zone, floor, and site. Schedules, setpoints, alarms, audit log, role-based access — designed for facilities teams operating from the floor, not from a SCADA console.

App features Request a Demo
iOS & Android Role-based access Multi-site rollups Offline-tolerant
About AmbiAutomation

Engineering-led building automation.

From the same Ahmedabad embedded-engineering team that ships AmbiSecure and the eSIM Initiative — focused, for AmbiAutomation, on retrofit HVAC control.

01 · Who we are

Embedded-systems engineers, in-house.

The building-automation product line of the Ambimat Group. Hardware, firmware, cloud, supervisory application, and field deployment all under one engineering organisation in Ahmedabad. Manufacturing electronics in India since 1981.

02 · What we build

On-site servers and apps for HVAC.

The HVAC Bridge Board on-site server, plus mobile and web applications that put the whole building's HVAC in one screen.

03 · Who we help

Commercial & multi-zone buildings.

Offices and CRE, hotels, hospitals, institutions, retail, and light industrial facilities. Anywhere VRV / VRF runs on multiple zones.

04 · How we engage

Retrofit-first deployments.

Survey → plan → install → commission → operate. Live control within days, not quarters. Payback in 12–24 months for most sites.

The problem

Powerful HVAC systems, manual operation.

Most commercial buildings already run capable VRV / VRF systems. But control is fragmented across wall remotes, paper schedules, and facility staff walking floor to floor. The result: energy waste, inconsistent comfort, and no real visibility.

01

Fragmented control

Multiple remotes, floor-level setpoints, no single view of the building.

02

Energy waste

Empty zones cooled overnight; setpoints never tuned for occupancy.

03

Reactive maintenance

No early signals when a unit drifts, runs hot, or runs constantly.

The solution

An on-site server + a mobile app, sitting on top of your existing HVAC.

AmbiAutomation deploys a small, industrial on-site server that speaks BACnet IP and MODBUS RTU to your existing VRV / VRF, chillers, and VAVs. From there, your team uses a mobile and web application to monitor, schedule, and control every zone — centrally.

  • No rip-and-replace. Works with the HVAC equipment already on site.
  • BACnet IP and MODBUS RTU, plus encrypted Wi-Fi / Ethernet / cellular backhaul.
  • Edge-first: the server keeps controlling even when internet is down.
  • Web + mobile app for facilities teams, plus role-based access.
See how it works
How it works

Three components. One outcome.

01 · On-site server

HVAC Bridge Board

An IP65 industrial gateway. BACnet IP + MODBUS RTU, RS232 / RS485, Ethernet, Wi-Fi, GPRS/CAT 1/NB-IoT. Galvanic isolation. Edge logic.

Spec sheet →
02 · Mobile + web app

Centralized control

Schedule by zone or floor. Adjust setpoints. See live status. Receive alerts. Assign role-based access to facility, operations, and tenant users.

App features →
03 · Energy analytics

Optimization & reporting

Trend zone-level consumption. Detect units operating outside normal envelope. Tune schedules against occupancy. Export reports for compliance.

See the math →
Key benefits

Built for facility managers, building owners, and integrators.

Retrofit-friendly deployment

Most installs go live without modifying your existing IT or HVAC infrastructure. Cellular fallback means no router changes required.

Centralized HVAC visibility

One screen for every zone, every floor, every site. Status, setpoints, alarms, and trends — in real time.

Energy optimization

Schedule against occupancy, cap setpoints, identify runaway units. Typical buildings recover the install in 12–24 months.

Maintenance visibility

Early warnings before an outage. Reduce on-floor walks. Trace performance per unit, per zone, over time.

Security-first architecture

Encrypted backhaul over TLS. Edge logic that never depends on a single cloud path. Role-based access on the app.

Mobile-first operation

Field teams act from a phone. No SCADA console, no separate workstation, no proprietary controller required.

Where it fits

Multi-zone buildings, anywhere.

Offices, commercial real estate, hotels, hospitals, educational institutions, and light industrial facilities — anywhere VRV / VRF runs on multiple zones.

Offices & CRE

Per-floor scheduling, tenant-aware comfort, after-hours overrides.

Hotels

Occupancy-aware setpoints, room-by-room recovery, central operations view.

Institutions

Term-based schedules, classroom-level zoning, energy reporting.

Industrial

Process-area comfort + air handling, integrated with MODBUS RTU PLCs.

Explore industries
Featured Ambimat platforms

Part of the Ambimat engineering ecosystem.

AmbiAutomation is an Ambimat group company. Below are selected sibling platforms within the Ambimat engineering ecosystem — they are featured here for context, not as a complete list of Ambimat's offerings.

Parent ecosystem

Ambimat Electronics

An embedded-electronics engineering group operating in India since 1981. The Ambimat ecosystem spans multiple offerings across hardware, embedded systems, identity, telecom, and building automation — AmbiAutomation is one of them.

Visit ambimat.com →
Featured sister platform

AmbiSecure

Hardware-rooted identity — FIDO, PIV, JavaCard, secure elements, PKI infrastructure. For governments, enterprises, and connected-product OEMs. The eSIM Initiative is a focused platform within AmbiSecure.

Visit ambisecure.ambimat.com →
Featured platform · AmbiSecure

eSIM Initiative

SIM-based authentication platform — eSIM / eUICC, secure-element engineering, IoT trust anchors for telecom operators and connected-product OEMs. Operated as a focused initiative within AmbiSecure.

Visit esim.ambimat.com →

AmbiSecure, the eSIM Initiative, and AmbiAutomation are featured here for context. The Ambimat engineering ecosystem includes additional offerings beyond those shown.

Frequently asked

Common questions.

Do I need to replace my existing VRV / VRF system?

No. AmbiAutomation is a retrofit. An on-site automation server connects to your existing VRV / VRF units, chillers, and VAVs over BACnet IP or MODBUS RTU — the equipment is retained.

What does AmbiAutomation add to an existing HVAC system?

A supervisory layer: centralized control, scheduling, zone-level monitoring, and energy optimization, delivered through an on-site automation server plus a mobile and web application.

Does the system keep working if the internet goes down?

Yes. The on-site server runs edge logic, so schedules, alarms, and overrides keep operating when backhaul is interrupted. The cloud layer is optional and used for multi-site rollups and reporting.

How much HVAC energy can centralized control save?

HVAC is typically 40–60% of a commercial building's electricity bill. Disciplined schedules and setpoints, measured against a documented baseline, typically recover 15–30% of HVAC energy over a 12–24 month payback.

Which HVAC brands are supported?

Any system that exposes a BACnet IP or MODBUS RTU interface — including Daikin, Mitsubishi Electric, Hitachi, LG, and Toshiba VRV / VRF systems — natively or through an OEM gateway. A site survey confirms protocol exposure for the installed equipment.

Engage AmbiAutomation

Send us a site brief.

Number of floors, HVAC make and model, current control mechanism, and the outcomes you want. Our engineering team will return a deployment shape and timeline within one business day.

Talk to engineering Discuss a deployment