The units are designed to meet specific customer needs. The construction details enable, a great deal of flexibility to meet varying capacity requirements and provide solution for all type of application air Psychometric needs and space constraints.

Each unit is designed and manufactured to exacting need of customer.

• • Double skin AHU provide High Indoor Air Quality since sand-witch pressure injected PUF insulated panels reduces risk of dirt accumulation, eliminates chances of moisture absorption and erosion of internal insulation. Further AHU interior can be periodically cleaned with wet mop.
• • Corrosion resistant stainless steel drain pan with adequate slope assures quick and complete drainage of condensed moisture ensuring no stagnant water and minimizes microbial growth.
• • Flexible construction enables that various sections/ component can be arranged in a manner to suit specific application requirement.
• • High PUF density provides better thermal insulation and sound attenuation properties and thus reduces casing breakout noise.

SALIENT FEATURES

Application : Cooling, Heating, Dehumidification,
Humidification in shopping malls, offices, restaurants, health care, multiplex, clean rooms and all type of industrial application

Wide capacity range :2040 CMH to 59500 CMH

Comfort to Industrial :pressure range from 250 Pa to 1500 Pa

Product Range for all Application :

1. Horizontal Floor Mounted (UHF series)
These units are suitable for large air quantity. The modular design allow flexible combination of component to suit specific application. These AHU’s are ideal for large commercial / office / industrial / hospitality / healthcare application.

2. Unitary Vertical Floor Mounted (UVF series)
These units are preferred when floor space is at a premium. Vertical units are units designed with filter coil & fan all arranged in a vertical frame. The advantage of these units are they occupy less floor space. Floor Plates where low ceiling height is a constraint multiple vertical units can be used to advantage. Where no AHU rooms are provided exposed units with supply air plenum can be used.

3. Ceiling Suspended Hide Away Type (CD / CB series)
These units are suspended from ceiling slab above false ceiling and thus require no floor space & AHU rooms. These units are suitable for commercial comfort application where space is at a premium. Multiple units can be used for multi tenant application where individual space control is required.

These Air Handling Units are manufactured in our Modern factory which is well equipped with sheet metal forming and PUF injection machine.

CONSTRUCTION FEATURES

CASING :

• Rigid corrosion resistant extruded aluminium hollow framework held together with fiber glass corner joints.

• Double skin sand-witched panels with inner skin of 24 G (0.6 mm) plain galvanized steel sheets & outer skin of 24 G (0.6 mm) pre-coated galvanized steel sheet.

• Casing Panels are injected with high pressure PUF insulation having density of 38±2 kg/m³. Standard AHU models have 25 mm thick panel.
• Die cast aluminium hinges and nylon handle on each access door.

• Assembly is done using self drilling and self tapping galvanized sheet metal screws.

• Horizontal & Vertical Units are skid mounted. The base frame is rugged in construction made from galvanized steel sheet.

• Standard AHU is having fan coil & pre-filter arranged in Draw through arrangement.

Fan & Motor

DIDW, Forward / backward curved AMCA certified centrifugal fan, belt driven complete with TEFC, squirrel cage induction, class ‘F’ insulation, IP-55 motor. Fan motor is suitable for 3 ph, 415 V ± 10%, 50 Hz AC. Fan & motor are mounted on a common base frame on vibration isolator.

Wet Deck

• Fans are centrifugal, DIDW forward curved. Fans are energy efficient & AMCA certified. Horizontal / Vertical AHU fans are belt driven while ceiling suspended AHU’s have both direct and belt driven models.

• Motors are TEFC, Squirrel Cage Induction type with class ‘F’ insulation confirming to IS 325. Motors are suitable for 3 phase 415±10% V, 50±5% Hz AC supply. Direct driven motors are suitable for single phase 220 V, 50 Hz AC supply. Energy efficient level 1 motor as per IS 12615 can be provided on request.

• Fan & Motor are mounted on common extruded aluminium channel base frame.

• The combined fan motor base frame is mounted on suitable vibration isolator to minimize vibration transmission.

• The fans are connected to the casing through fire resistant canvass.

• AHU outlet shall have flanged connection for duct connection.

• AHU can have either of the following air discharge orientation, Up Blast/ Top Horizontal/ Bottom Horizontal

COILS

• Can be either Chilled water / Hot water / brine / direct expansion type.

• Galvanized sheet steel end plates shall hold the copper tube pack.

• The coil tubes are plain copper having 12.7 mm OD. The coil tube arrangement is multi circuited with choice of 2/4/6/8 row deep in the direction of air flow.

• Tubes are mechanically expanded for better bonding with aluminium fins for efficient heat transfer.

• Free flow aluminium fin configuration provide better heat transfer and less air pressure drop. Depending on application, one can choose from 8/10/12 FPI fins spacing.

• Water / brine coils are self drainage and vented type.

• Coil header shall be of copper

DRAIN PAN

Wide drain pan facilitates quick draining of condensate. Drain pan is fabricated out of corrosion resistance 22 G stainless steel. To avoid surface condensation, drain pan is insulated with closed cell insulation.

FILTER

• Standard units are provided with sliding box type pre-filter with synthetic non woven media. The filter is of EU 4 grade as per EN 779 standard. The filters are washable type and are 50 mm thick for floor mounted and 25 mm thick for ceiling suspended.

ACCESSORY (UHF series only )

•Access door in fan / fine & HEPA filter section (as applicable).
• Marine lamp in fan section for better visibility.
• View port in fan section
• Door limit switch to switch off the motor automatically for personnel safety.

DOUBLE SKIN HORIZONTAL FLOOR MOUNTED

Note :

• a. Coil Face area indicated is based on 500 FPM (2.54 m/s) coil face velocity
• b. Motor rating indicated is based on total static pressure of 50 mm WG
• c. Unit Dimensions indicated are approximate only based on “DRAW THRU” arrangement with Fan, Cooling Coil & Pre-filters, Casing Panels thickness considered is 25 mm, Coil considered is of 4 RD.
• d. Standard models include forward curved, DIDW Centrifugal Fans
• e. Motors are suitable for 3 Ph, 415 V, 50 Hz, AC
• f. Specifications are subject to change without notice.

DOUBLE SKIN VERTICAL FLOOR MOUNTED

Note :

• a. Coil Face area indicated is based on 500 FPM (2.54 m/s) coil face velocity
• b. Motor rating indicated is based on total static pressure of 40 mm WG
• c. Unit Dimensions are approximate. Casing Panels thickness considered is 25 mm, Coil considered is of 4 RD.
• d. Standard models include forward curved, DIDW Centrifugal Fans
• e. Motors are suitable for 3 Ph, 415 V, 50 Hz, AC
• f. AHU are with up blast fan discharge
• g. Specifications are subject to change without notice.

DOUBLE SKIN CEILING SUSPENDED - DIRECT DRIVEN

Note :

• a. Coil Face area indicated is based on 500 FPM (2.54 m/s) coil face velocity
• b. Motor rating indicated is based on total static pressure of 30 mm WG
• c. Unit Dimensions are approximate. Casing Panels thickness considered is 25 mm, Coil considered is of 4 RD.
• d. Standard models include forward curved, DIDW Centrifugal Fans
• e. Motors are suitable for 1 Ph, 220 V, 50 Hz, AC
• f. AHU are with bottom horizontal fan discharge
• g. Specifications are subject to change without notice.

DOUBLE SKIN CEILING SUSPENDED - BELT DRIVEN

Note :

• a. Coil Face area indicated is based on 500 FPM (2.54 m/s) coil face velocity
• b. Motor rating indicated is based on total static pressure of 40 mm WG
• c. Unit Dimensions are approximate. Casing Panels thickness considered is 25 mm, Coil considered is of 4 RD.
• d. Standard models include forward curved, DIDW Centrifugal Fans
• e. Motors are suitable for 3 Ph, 415 V, 50 Hz, AC
• f. AHU are with bottom horizontal fan discharge
• g. Specifications are subject to change without notice.

OPTIONS AVAILABLE

• • Outer & inner skin thickness.
• • Inner skin material - Aluminium
• • Casing panel thickness 43 mm.
• • Mixing box.
• • Backward curved DIDW centrifugal Fan
• • Plug type fan
• • Low leakage aluminium damper for supply, return & fresh air.
• • 2/ 4 pass PVC mist eliminator.
• • Fine / HEPA filter section with filter of required EU/ MERV rating.
• • Vacant Electric heater Section
• • Vacant Humidifier section
• • Overhead canopy for out door installation.
• • AHU in blow through design
• • Two Tier design having heat recovery wheel with separate supply & return air fan.
• • Treated Fresh air unit with Heat Pipe or cross flow plate heat exchanger
• • Separate supply air and return air fan with air economizer section.