AIR HANDLING UNITS are manufactured according to the most advanced technical specification and under strict quality control. Each and every part of the unit is fabricated / manufactured in-house and goes through various tests before being fitted to the main unit. The complete unit is Factory assembled and tested for leakages, vibration, airflow, temperature variation, sound levels etc. Only after all the tests are completed, and qualified by the quality control department, the machine is shipped to the customer’s site
Air Handling Unit
SASA air handling units are manufactured according to the most advanced technical specifications and strict quality control. Every part of the unit is fabricated/ manufactured in-house. The unit is fabricated/ manufactured in house and goes through various tests before being fitted to the main unit. Unit is tested in the factory for temperature variation, leakages, vibration, airflow, sound levels etc. After all the tests are completed and qualified by the quality control department, the machine is shipped to the customer’s site.
Today, from the deserts of Sindh to the mountains of the frontier region, SASA’s name has become synonymous with Quality & Reliability. The complete range of SASA Air Handling Units is made from the conclusion of optimum thermal design aerodynamic and acoustic performance. A wide range of 14 models provides nominal airflow ranging from 1000 cm to 28500 cm with a single or multi zone horizontal type arrangement meeting most of the HVAC applications and requirements. The units can be easily dismantled for transport and installed within the difficult entries.
- Pharmaceutical Grade Air Handling Units.
- Hygienic Air Handling Units.
- Industrial & Commercial Grade Air Handing Units.
Model Features
Construction: (As per International Standards):
- Italian Hardware.
- PU-Loaded Aluminum Profile/Frame Structure.
- Outer G.I sheet with Powder/Color Coated 0.8~1.0mm thickness.
- Inner G.I/SS Sheet 0.7~0.8mm thickness.
- Stainless Steel Drain Tray 2mm thickness.
- Double Skinned PU Injected Panels.
- Air Tight Door with Die Casted Imputed Handles.
- M.S C-Channel Bottom Base.
- Vibrating Isolators below Fan+ Motor Assembly.
- Motorized/Manual SA, FA, RA, By-Pass Volume Control Dampers-Die Casted Aluminum Blades, Gears and Frame with sealant gasket.
- Thermal Barrier in-between inner and outer sheet by imported gaskets.
- Door Tightness leak proof gaskets.
- Pressure & Temperatures Ports.
- Inspection windows with water proof lights
Centrifugal Fans:
- AMCA Certified Centrifugal Fans:
- Computerized Fan Selection by Certified & Registered software from concern authority.
- FC-DWDI, G.I Constructions Blades and Housing with MS Angle Chair/Base.
- BC-DWDI M.S Constructions Blades and Housing with Angle Chair/Base.
- Plug Fans S Constructions Blades and Housing with Angle Chair/Base.
- Statically and Dynamically Balanced with Die Casted Balanced Pulley and Imported Belts
- NTN/FAG/SKF Bearings
- Carbon Steel Shaft
Cooling/Heating Coils:
- Best Quality, Certified Coils are used as per requirement.
- Computerized Coil Selection by Certified & Registered software from concern authority.
- Chilled Water Cooling Coils, Copper Pipes 23Guage, and Hydrophilic Coated Aluminum Fins 0.14mm thickness.
- Pre Cooling Coils, if required.
- Steam/Hot Water Cooling Coils, Copper Pipes 20Guage and Hydrophilic Coated Aluminum Fins 0.14mm thickness
- DX-Cooling Coils, Copper Pipes 23Guage, and Hydrophilic Coated Aluminum Fins 0.14mm thickness.
- Electric Heater if required,
- Multiples Cooling Heating Coils if required
Motors:
- VFD Compatible Electrical Motors of Different brands are used Like Siemens, ABB or Equivalent Imported Brand
- Variable Frequency Device with different communication protocols are used on request.
- IP-55 Class-F, Standard & Explosion Proof Motors as per requirement
Filters:
- G4 Aluminum Mesh Washable Filters, 35% efficiency.
- G3 Synthetic Media Multi-V Filters 80% efficiency.
- F6, F7 & F9 Bag Type or Pleated Type Filters 65% and 95% efficiency.
- H-23 HEPA Filters 99.99% efficiency.
- All above filters can be used/installed AHU as per requirement or design
On Request:
- Mixing Sections.
- Diffusers sections
- Double Cooling Coils, DX with Condensing Units & Chilled Water.
- Reheat Coils or Electric Heater.
- Dehumidification Sections for Desiccant wheel/Heat Pump.
- Pressure & Temperatures gauges.
- Inspection windows with water proof lights
- Spares ( Motor, Fan, Pulleys, Belts and Filters)
- Double Decker Type, Floor Standing Type, Horizontal Type, Vertical Type, Top Suction Top Discharge, Rear Suction Side Discharge (As per Site Conditions)
- Pre-Cooling Coil, etc…
Mixing Section of air handling unit
For applications having the requirement of mixing fresh and returned air, a mixing section with two dampers is provided.
Dampers
Control dampers are off the galvanized frame. Air dampers have opposed airfall blades.
Fan Section
Forward curved or backward inclined fans can be provided to suit the required applications. Forward curved fans are constructed of galvanized steel and are tested in accordance with ARI standard 430, suitable for external static pressure up to 2.5degree w.g. Backward inclined wheels are of mild steel construction, wide structure members to provide maximum rigidity and are tested in accordance with ARI standard 430, and suitable for external static pressure up to 6 w.g. Backward inclined wheels are of non-overloading characteristics.
A unique feature of this range of fans is the interchangeability of the impellers within the same housing. This feature allows upgrading or modifying the AHU as per the site’s requirement. The impellers are statically and dynamically balanced.
Fan Bearings
Fan bearings are the self-aligning type with grease-able ball bearings selected for a minimum of 20,000 operating hours. Bearings are provided with extended lubricating nipples for ease of periodic greasing. Generally, two types of ball bearings are installed on the fan shaft.
- Sealed-bearing is lubricated for life and is covered in a unique rubber anti-vibration housing, which provides sound insulation and smooth running.
- Pillow-block bearings are provided for heavy-duty fans; greasing nipples are provided for easy maintenance.
Vibration Isolation
Rubber isolators are standard for SASA SAH units with internally mounted motor and fan assembly providing excellent vibration isolation. Fan and motor are mounted on the same rigid, rugged steel frame as standard.
Flexible Connection
Fan discharge is connected to unit discharge by internal flexible duct connectors to reduce the unit’s vibration further.
Filters
Every type of filter can be integrated in the SAH unit.
Flat Filter
The Bag filters are provided in a separate section in the unit. Synthetic fiber Filtration media is used that is here and water-resistant, having a final pressure drop of 1.0 deg wg.
HEPA Filter
The Hepa filters are provided in a separate section in the unit, having an initial pressure differential of 1.0 deg wg to a final pressure drop of 2.4 wg.
Coil Section
SAH units Coil sections are provided for humidification and dehumidification. The coil sections include chilled water, hot water, direct expansion or steam coils. All soils are easily removable from the coil section of the unit.
Coil Assemblies
SAH units’ coils are designed and tested for maximum heat transfer efficiency between circulating mediums, i.e., air and water (Or refrigerant). The basic heat transfer at the coil surface has been perfected by fin contour and staggered tube configuration.
