Floor Mounted TFA Units

(Installation, Commissioning, Repair & Lifecycle Fresh Air Treatment Services)

Floor Mounted TFA Units in India

Bring treated outdoor air into your building with a system selected for its ventilation demand, humidity load and available installation space. Compress India supports Floor Mounted TFA Units with selection assistance, installation, testing, commissioning, repair and annual maintenance for commercial and industrial facilities.

Whether you are planning a new plant room or replacing an existing unit, airflow and cooling capacity are only part of the decision. Floor support, service access, duct connections and control integration also determine how reliably the system operates. Request a site assessment and a quotation based on your project requirements.

Floor Mounted TFA Units

What Are Floor Mounted Treated Fresh Air Units?

TFA Full Form and Fresh Air Treatment

TFA stands for Treated Fresh Air. A floor mounted treated fresh air unit conditions outdoor air before supplying it to occupied spaces or a connected HVAC distribution system. The floor mounted TFA working principle combines filtration, cooling and, when designed for it, moisture removal within a unit supported on the floor or an approved base.

Filtration, Cooling and Dehumidification of Outdoor Air

A floor mounted fresh air treatment unit uses filters to capture selected particulate contaminants and a cooling coil to remove heat. When the coil surface is below the incoming air's dew point, moisture condenses and drains away. A 100 percent fresh air floor mounted unit must be selected for outdoor conditions rather than room air conditions.

Role Alongside the Main Air Conditioning System

The TFA system handles the incoming ventilation air load and can contribute to space cooling, depending on its design. Room air conditioning usually handles the remaining internal loads. When comparing a floor mounted TFA vs floor mounted AHU, check the actual air arrangement: an AHU may mix return air with outdoor air, while a TFA typically treats outdoor air alone.

Horizontal and Vertical Floor Mounted TFA Configurations

Horizontal Floor Mounted TFA Units

A horizontal floor mounted TFA unit arranges its treatment sections along a horizontal airflow path. This can suit plant rooms with sufficient floor length and limited height. Check the complete arrangement, including filters, coil, fan, drain connection and service side, so the selected footprint accommodates both operation and component removal.

Vertical Floor Standing TFA Units

A vertical floor mounted TFA unit can offer a smaller footprint by using more installation height. A floor standing TFA unit is useful where floor area is constrained, provided overhead clearance, access panels and duct routing remain practical. Choose a purpose-designed vertical configuration rather than rotating a horizontal unit without manufacturer approval.

Supply Air Outlet Position and Duct Connection Layout

Outlet position affects duct bends, pressure losses and access around the equipment. Coordinate floor mounted TFA duct connections with the selected airflow direction, intake arrangement and supply distribution. Poorly placed transitions can restrict airflow or create noise; well-planned connections also keep ducts from obstructing filter doors, fan access and coil withdrawal.

Selecting the Configuration for Available Plant Room Space

To decide how to select a floor mounted TFA unit, review the plant room layout alongside the required air treatment duty. Allow for base height, drain trapping, pipework, electrical panels and maintenance routes. A floor mounted fresh air handling unit should fit the complete installation arrangement, not simply the vacant floor area.

DX and Chilled Water Cooling Options

DX Type Floor Mounted TFA Units with Compatible Condensing Units

A floor mounted DX TFA unit uses refrigerant within its cooling coil and requires a compatible outdoor condensing unit. Match the coil, expansion device, refrigerant, operating range and controls as a system. Floor mounted DX TFA refrigerant piping must follow the approved pipe sizes, length limits, height differences and insulation requirements of the selected equipment.

Chilled Water Floor Mounted TFA Units for Central HVAC Systems

A floor mounted chilled water TFA unit receives cooling from a central chilled water plant. Coil selection depends on available water temperature, flow and pressure conditions. Coordinate floor mounted TFA chilled water connections with control valves, balancing provisions, strainers and service access, and confirm that the plant operates whenever fresh air treatment is required.

Cooling Source, Capacity and Control Requirements

Floor mounting describes equipment placement; it does not determine the cooling source. DX or chilled water selection should consider the building's existing infrastructure, operating hours, humidity targets and available capacity. Review part-load control as well as peak duty, especially where ventilation continues during low room cooling demand or humid monsoon conditions.

Applications of Floor Mounted TFA Units

Office Buildings, IT Parks and Commercial Complexes

Floor mounted TFA units for office buildings can serve ventilation zones from dedicated plant rooms. Selection should reflect occupancy, operating schedules and the fresh air distribution network. Coordinate supply with building exhaust and pressure requirements, while controlling temperature and moisture so incoming outdoor air does not overwhelm the room cooling system.

Hotels, Shopping Malls and Hospitality Facilities

Floor mounted TFA units for hotels support fresh air delivery to occupied areas with different usage patterns. Shopping malls may require separate schedules for retail, common areas and other zones. Account for exhaust replacement air, odour-sensitive intake locations and acoustic requirements when integrating ventilation with the wider hospitality or commercial HVAC system.

Hospitals, Laboratories and Pharmaceutical Facilities

Floor mounted TFA units for hospitals and pharmaceutical facilities require application-specific filtration, humidity and pressure coordination. For cleanrooms, the unit supports the overall air treatment design; it does not establish a cleanliness classification by itself. Assess supply and exhaust separation, downstream filtration and any restrictions on energy recovery for the particular process or clinical area.

Industrial Buildings and Manufacturing Areas

Industrial floor mounted TFA units can treat ventilation or replacement air for manufacturing spaces. Selection must account for outdoor conditions, dust exposure, process exhaust and production schedules. Where processes release fumes or other contaminants, fresh air treatment should be coordinated with suitable local exhaust and extraction rather than treated as a substitute for them.

Floor Mounted TFA Specifications and Capacity Selection

Fresh Airflow Requirements in CFM or m³/h

Floor mounted TFA airflow capacity is specified in CFM or m³/h, based on the project's ventilation calculation. Occupancy, space use, exhaust replacement and pressure requirements can all influence the result. Confirm the design airflow at the required operating resistance, rather than selecting from a free-air fan rating or floor area alone.

Cooling Capacity in TR or kW

Floor mounted TFA cooling capacity must cover the heat and moisture removed from the incoming outdoor air at the design airflow. Specify capacity in TR or kW together with the inlet and leaving air conditions. A room air conditioner capacity rule cannot reliably size a system treating 100% outdoor air.

Outdoor Design Conditions and Sensible–Latent Loads

Sensible load relates to reducing air temperature; latent load relates to removing moisture. Both matter when preparing floor mounted TFA technical specifications. Evaluate hot summer conditions and humid seasonal conditions separately, since the highest humidity demand may occur when outdoor temperature is below its peak. Selection should address the relevant operating conditions for the project.

External Static Pressure for Ductwork and Filtration

Floor mounted TFA external static pressure should reflect the resistance of the external duct network, intake, terminals and other connected components. Internal filters and coils must also be accounted for in fan selection, without double-counting them as external resistance. Allow for the specified filter loading condition so airflow remains achievable as filters accumulate dust.

Supply Air Temperature, Dew Point and Humidity Targets

Specify the supply temperature and moisture target together. Dew point helps define moisture content, while relative humidity changes with temperature. Floor mounted TFA temperature and humidity control should be designed around the building or process requirement; supplying cool air alone does not confirm adequate dehumidification or a particular room humidity level.

Fan Power, Electrical Supply and Operating Noise

Check fan input power at the selected duty, motor rating, electrical supply and starter or drive requirements. An energy efficient floor mounted TFA unit needs a suitable fan and control arrangement as well as low unnecessary pressure losses. Assess sound data, duct transmission and nearby occupied spaces before deciding whether acoustic treatment is required.

Plant Room, Base Support and Installation Space Requirements

Equipment Footprint, Height and Available Floor Space

Floor mounted TFA dimensions should include every selected section, the base and the connection arrangement. Reserve space for access doors, pipework and electrical panels in addition to the casing footprint. A double skin floor mounted TFA unit may also need insulation and casing features suited to the operating temperature and plant room environment.

Floor Load, Base Frame and Plinth Requirements

Floor mounted TFA foundation requirements depend on the selected unit's operating weight and load distribution. Confirm floor capacity and provide an approved floor mounted TFA base frame or plinth arrangement. Plan floor mounted TFA plinth installation with enough height for the required drain trap; a generic base height may leave the drainage arrangement unworkable.

Vibration Isolation and Flexible Duct Connections

Select floor mounted TFA vibration isolators for the equipment load, fan characteristics and support structure. Suitable flexible duct connections and independently supported pipework help limit vibration transfer. Isolation must be coordinated with stable support, alignment and service access; adding flexible connections alone will not correct fan imbalance or unsuitable mounts.

Service Clearances for Filter, Fan and Coil Removal

Floor mounted TFA maintenance clearance must allow complete component removal, not just opening an access panel. Review filter withdrawal, fan and motor access, coil pull space and maintenance lifting needs. Floor mounted TFA filter access should remain unobstructed after ducts, cable trays and piping are installed, reducing avoidable disruption during routine service.

Delivery Routes, Door Openings and Sectional Assembly

Check delivery routes against floor mounted TFA weight, section dimensions, door openings and available lifting equipment. A modular floor mounted TFA unit can simplify access where the manufacturer permits sectional delivery and assembly. Confirm the handling method, joint sealing and final alignment before ordering equipment for a restricted plant room.

Filtration, Humidity Control and Condensate Management

Pre-Filters, Fine Filters and Application-Specific Filtration

Pre-filters protect downstream components from larger particles, while selected fine filters provide additional particulate control. A floor mounted TFA with multistage filtration must have enough fan capability for the complete filter arrangement. Choose filtration efficiency, sealing and replacement access for the application; higher efficiency alone does not compensate for bypass leakage or insufficient airflow.

Cooling Coil Selection for Hot and Humid Conditions

Choose the coil using entering air conditions, airflow, available cooling source and required leaving air moisture content. Coil geometry and air velocity affect heat transfer, pressure loss and moisture carryover. Humidity-sensitive projects need a selection that addresses latent duty at relevant seasonal conditions, supported by controls that maintain the required performance.

Reheat and Optional Heat Recovery Configurations

Reheat may be required after dehumidification when the air would otherwise be too cold for the space. A floor mounted TFA with heat recovery can reduce treatment load where a suitable exhaust stream is available. Evaluate recovery type, cross-leakage risk and maintenance needs; recovery supports the design but does not replace the required cooling and humidity control.

Condensate Drain Pan, Trap and Drainage Connections

Provide an accessible drain pan and a floor mounted TFA drain trap arrangement sized for the pressure at the drain connection. Floor mounted TFA condensate drain piping needs appropriate fall, support and cleaning access. Check the trap and drainage while the fan operates, since a drain that flows with the unit stopped may back up during operation.

Casing Insulation and Vapour Barriers for Condensation Control

Floor mounted TFA insulation helps limit heat gain and external surface condensation. Insulation thickness, thermal bridges and vapour barrier continuity should suit the air temperature and surrounding humidity. Seal joints, access panels and cold pipe connections carefully; damaged insulation or gaps in the vapour barrier can cause sweating even when the cooling system operates correctly.

Controls, Automation and HVAC Integration

Temperature and Humidity Monitoring

Use sensors placed to represent the intended control condition, whether at the supply duct, occupied zone or another specified location. Temperature, relative humidity and calculated dew point can provide different information. Verify sensor accuracy and control setpoints so a comfortable temperature reading does not conceal excessive moisture in the delivered air.

Fan Speed Control and Fresh Air Operating Schedules

Floor mounted TFA VFD integration can adjust fan speed to the approved ventilation sequence. A floor mounted TFA with EC fans offers another controllable fan option where suitable. Set minimum airflow limits and operating schedules carefully so energy adjustments preserve ventilation, pressure balance and coil operating requirements during occupied periods.

Cooling System Interlocks and Control Sequences

Coordinate fan operation, airflow proving, cooling availability, valve or compressor control and any reheat stage. Define responses to fan faults, cooling failure and drainage alarms around equipment protection and the building's ventilation needs. The sequence should also address startup and low-load operation rather than relying only on a single temperature setpoint.

BMS Integration, Filter Alerts and Fault Monitoring

Floor mounted TFA BMS integration can make operating status, temperatures, humidity readings and selected alarms available to facility teams. Agree the communication interface, point list and alarm priorities before installation. Differential pressure monitoring can support filter maintenance decisions, while fault histories help identify recurring airflow, cooling or control problems.

Floor Mounted vs Ceiling Suspended TFA Units

Floor Space, Ceiling Clearance and Support Requirements

Floor mounted equipment occupies plant room or other approved floor space and needs a suitable supporting base. Ceiling suspended equipment uses overhead space and requires approved suspension supports. Compare the available structure, drain routing and access arrangement together; the mounting choice should fit the building layout and the complete installation requirements.

Airflow Capacity and Equipment Configuration

Mounting style alone does not establish airflow or cooling capacity. Floor mounted units may accommodate longer or more varied section arrangements where space permits, while suspended designs may suit constrained layouts. Compare selected equipment at the same airflow, pressure, filtration and cooling conditions to make a meaningful configuration decision.

Maintenance Access and Component Replacement

Floor level access can simplify servicing when sufficient space is reserved around the unit. Suspended units need practical access platforms, ceiling openings or other planned arrangements. In both cases, confirm how filters, motors and coils will be removed; an accessible inspection panel is not necessarily enough for major component replacement.

Installation and Lifecycle Cost Comparison

Compare complete installed costs, including supports, lifting, access, ducts, pipes, drains and electrical work. Lifecycle cost also depends on fan duty, cooling efficiency and maintenance effort. A lower equipment price can be offset by difficult service access or excessive duct resistance, so assess both installation practicality and ongoing operation.

Floor Mounted TFA Installation and Commissioning by Compress India

Compress India coordinates floor mounted TFA installation with the equipment layout, connected services and performance requirements. Define the agreed scope before work begins, including installation responsibilities, testing requirements and handover records.

Site Survey and Equipment Layout Coordination

A site survey checks available space, intake location, duct routes, cooling connections and electrical provisions. It should also identify access restrictions and base requirements before equipment selection is finalised. Involve the floor mounted TFA installation contractor early enough to resolve layout conflicts before ducts, pipes and permanent supports are installed.

Unit Placement, Levelling and Vibration Isolation

Inspect the supporting base and isolator arrangement before positioning the equipment. Floor mounted TFA levelling and alignment should follow the approved unit drawings and installation instructions. Check section joints, access doors and drain elevation after assembly, and ensure connected services do not pull the casing out of alignment or bypass the vibration isolation.

Fresh Air Intake, Supply Ducting and Cooling Connections

Locate the floor mounted TFA fresh air intake away from unsuitable exhaust discharges and other contamination sources, with weather protection appropriate to the design. Connect supply ducts and the selected cooling circuit with suitable supports. A unit installed inside a plant room still needs a properly routed outdoor air intake rather than drawing plant room air.

Electrical Wiring, Controls, Insulation and Drainage

Verify power supply, protection, earthing, motor connections and control wiring against the approved design. Complete pipe and duct insulation, seal vapour barriers and test condensate drainage. For DX systems, include the required pressure testing, evacuation and refrigerant commissioning procedures; for chilled water systems, include the specified cleaning, venting and balancing checks.

Airflow Balancing and Temperature–Humidity Performance Testing

Floor mounted TFA airflow balancing verifies delivery at the unit and relevant supply points. Record airflow, pressures, entering and leaving air conditions, cooling source conditions and motor readings. Floor mounted TFA testing and commissioning should assess temperature and moisture performance against the design while clearly recording the weather and load conditions present during testing.

Functional Checks and Commissioning Reports

Test operating modes, schedules, interlocks, alarms and BMS points where included. Check drainage under operating conditions and verify the specified control responses. Handover records should identify measured results, setpoints, equipment details and outstanding items, giving facility teams a practical operating reference without implying that one test has verified every seasonal condition.

Floor Mounted TFA Maintenance, Repair and AMC Services

Compress India provides floor mounted TFA maintenance services and corrective support for airflow, cooling, humidity and drainage problems. A floor mounted TFA annual maintenance contract can define inspection frequency, reporting and service coverage around the equipment and site conditions.

Filter Replacement and Cooling Coil Cleaning

Plan floor mounted TFA filter replacement using filter condition, differential pressure, operating hours and environmental exposure. Floor mounted TFA cooling coil cleaning should remove accumulated dirt while protecting coil fins and drainage components. Inspect seals and filter seating after service, since air bypass can reduce treatment quality even when new filters are installed.

Fan, Motor and Vibration Inspection

Inspect the fan wheel, motor, bearings, mounts and drive components where fitted. Check operating current, vibration and alignment against the equipment requirements. Floor mounted TFA fan motor repair should address the cause of the fault, including mechanical resistance, unsuitable operating duty or electrical problems, rather than treating motor replacement as the complete diagnosis.

Drain Pan and Condensate Line Servicing

Floor mounted TFA condensate drain cleaning includes the pan, accessible trap and connected drainage route. Check for blockages, corrosion, poor fall and air leakage at the trap. If the unit leaks water, inspect coil carryover and external surface condensation as well as the drain, then verify operation after the corrective work.

Troubleshooting Low Airflow, Poor Cooling and High Humidity

Low airflow may result from loaded filters, duct restrictions, fan faults or incorrect speed settings. Poor cooling can involve the coil, cooling source or controls, while high humidity may also indicate inadequate latent capacity or operating sequences. Floor mounted TFA repair services should use measurements to distinguish these causes before recommending corrective work.

Cooling Circuit, Valve and Control Fault Diagnosis

For chilled water equipment, check water temperature, flow, valve response, strainers and coil air removal. For DX systems, inspect the refrigerant circuit, condensing unit and expansion control using appropriate procedures. Diagnose and repair refrigerant leaks before any required recharge; repeated topping up does not resolve the underlying fault or restore reliable performance.

Preventive Maintenance and Retrofit Upgrades

A floor mounted TFA maintenance checklist should cover filters, coils, fans, drains, sensors, controls and connected cooling services. Tailor floor mounted TFA preventive maintenance to site conditions. A floor mounted TFA retrofit may improve filtration, controls or fan operation, provided the existing casing, cooling capacity, electrical system and available service space support the proposed changes.

Floor Mounted TFA Unit Cost in India

Floor mounted TFA unit price in India varies with the selected duty and installation scope. Request an itemised quotation so equipment, connected services and optional features can be compared on the same basis.

Equipment Cost Factors: Airflow, Cooling Type and Filtration

Airflow, cooling capacity, fan pressure, DX or chilled water arrangement and filtration stages influence equipment cost. Casing construction, coil materials and control requirements also affect the selection. Provide the actual design conditions when approaching a floor mounted TFA unit supplier so quotations reflect equivalent performance rather than nominal capacity alone.

Base Support, Ductwork, Piping and Installation Costs

Floor mounted TFA installation cost depends on support works, duct lengths, cooling pipe routes, insulation, drains and electrical connections. Delivery access and lifting arrangements can also influence site costs. Define these items separately from the equipment supply so the quotation identifies responsibilities and avoids leaving essential connection or access works unaccounted for.

Controls, Acoustic Treatment and Optional Recovery Modules

Additional sensors, drives, BMS interfaces, acoustic provisions and recovery modules can change project cost and equipment dimensions. Specify what each option must achieve before including it. Compare the complete arrangement, including added pressure resistance and maintenance needs, so an optional feature improves the system without creating an overlooked installation or operating constraint.

Fan Energy, Cooling System Operating Costs and Maintenance Expenses

Operating cost includes fan electricity and the energy used by the cooling source, associated pumps and any reheat. Maintenance costs include filters, cleaning, inspections and eventual component replacement. Assess annual schedules and realistic load conditions when comparing options; an efficiency label alone does not establish the lowest lifecycle cost for the project.

Along with floor mounted TFA units, explore DX type, chilled water based, ceiling suspended, modular and low-temperature dehumidification fresh air systems for different installation spaces and air treatment requirements.

DX Type Treated Fresh Air Units

DX Type Treated Fresh Air Units

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Chilled Water Based TFA Units

Chilled Water Based TFA Units

Learn More
Ceiling Suspended TFA Units

Ceiling Suspended TFA Units

Learn More
Modular Fresh Air Units

Modular Fresh Air Units

Learn More
Low-Temperature Dehumidification TFA Units

Low-Temperature Dehumidification TFA Units

Learn More

Frequently Asked Questions About Floor Mounted TFA Units

How Is a Floor Mounted TFA Unit Different from a Floor Standing AC?

A floor standing air conditioner or portable air conditioner generally cools recirculated room air. A floor mounted TFA unit is designed to treat incoming outdoor ventilation air. Their duties differ, so a room cooling appliance should not be assumed to provide the ventilation or moisture treatment required from a TFA system.

Should I Choose a Horizontal or Vertical TFA Unit?

Choose the configuration that fits the required airflow path, plant room footprint, available height and service access. Horizontal equipment needs suitable length; vertical equipment needs suitable height. Review the manufacturer's approved arrangement and connections rather than choosing orientation solely from the space occupied by the casing.

How Much Floor Space and Maintenance Clearance Are Required?

The selected unit's drawings determine its footprint and service clearances. Allow additional room for filter withdrawal, fan and coil removal, pipe connections, the drain trap and electrical access. There is no single clearance that suits every model; include component replacement space when planning the installation.

Does the Unit Need a Chiller or an Outdoor Condensing Unit?

A chilled water TFA needs a suitable chilled water source, usually a central chiller system. A DX TFA needs compatible condensing equipment and refrigerant controls. Confirm the selected cooling arrangement, available capacity and operating hours before finalising the unit; floor mounting does not determine which source is required.

How Are Airflow and Cooling Capacity Calculated?

Airflow comes from the ventilation requirement, with exhaust replacement and pressure balance considered where applicable. Cooling capacity comes from treating that air from the outdoor design condition to the required supply condition. The calculation must include sensible and latent loads rather than relying on room area alone.

Can a Floor Mounted TFA Unit Be Installed Outdoors or on a Rooftop?

Yes, when the selected equipment and installation are designed for that environment. Confirm weather protection, suitable electrical provisions, structural support, drainage and maintenance access. An indoor floor mounted unit should not be assumed suitable for exposed outdoor or rooftop use without the required specification and manufacturer approval.

Can These Units Control Humidity During Monsoon?

They can when the coil, cooling source, airflow and controls are selected for the relevant moisture load. Reheat may also be needed to avoid overcooling. Check the supply air dew point and the building's other moisture sources; temperature control alone does not guarantee the required indoor humidity.

Which Filters Are Suitable for My Application?

Filter selection depends on outdoor contamination, required air quality and the application. Offices and process spaces may need different arrangements. Specify efficiency, sealing, pressure resistance and access together, and coordinate specialised filtration with the full HVAC design rather than adding a high-resistance filter without checking fan capacity.

How Are Noise and Vibration Controlled?

Floor mounted TFA noise control combines suitable fan selection, duct design and acoustic treatment where required. Vibration control includes correctly selected isolators, balanced rotating components and properly supported connections. Diagnose the source before adding treatments, since fan faults, structural transmission and duct noise require different corrective measures.

Can an Existing TFA Unit Be Replaced or Upgraded?

Yes, after checking its current duty, condition and connected services. Floor mounted TFA replacement requires compatible space, support, duct, cooling and electrical arrangements. Upgrades should also account for added filter resistance, control compatibility and maintenance access so the revised system can achieve its intended operating performance.

What Information Is Needed for a Quotation?

Share the project location, application, required airflow, outdoor design conditions, cooling source, supply air targets, filtration requirements and available layout. For existing installations, include equipment details, photographs and current problems. These inputs help define equipment selection, connection works, commissioning and maintenance requirements for an accurate scope.