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YSM/YDM B Series

AIR HANDLING UNIT

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Features

The modular air handling unit design concept provides the flexibility to meet the risingdemand of indoor air quality. A quality range of 33 units with airflows of 1,058 CMH to85,600 CMH and up to 1,500 pascals total static pressure. Our specially extruded aluminiumprofile posts, plastic injected corners and flush fitting panels and doors give the buildingdesigner and occupier a unit of aesthetic and clean lines unsurpassed in the marketplace.

All panels can be removed due to York’s unique locking device achieved by a specialaluminium profile and a safety PVC locking strip.

The YSM/YDM range can be manufactured to almost any configuration to meet customers’requirements.

Chilled water and DX cooling coils are manufactured from copper tubes with aluminium,copper or hydrophilic coated fins. Heating can be hot water coil or electric heaters.

RigidityManufactured from robust extruded aluminium profile, strong plastic injected corner and double skin panel with injected polyurethanefoams insulation adding rigidity to the unit. Polystrene foam insulation can be offered for YDM.

FlexibilityThe major components such as fans, cooling coils, heating coils, electric heater, filters etc can be selected as per design requirement togive complete application flexibility.

Unit can be delivered as completely assembled or completely knock down.

Your Choice Of BlowerYou have a choice of blower to meet your design and sound power requirement.

IAQ Design CompatabilityDouble skin panel construction allow easy inspection, cleaning and maintenance of the interior surface. Moisture intrusion and microbialgrowth are inhibited with non hydroscopics properties of polyurethane foam.

Condensate PanThree way pitch drain pan design discharges condensate quickly and prevent microbial growth.

Air TightnessProvided with a combination of closed cell insulation and silicon seals to ensure an air tight construction.

Easy AccessAn ingenious patented system, using an aluminium locking profile and a tubular EPDM strip, to ensure fastening of all panels and theireasy dismantling for service and maintenance.

FiltrationVarious option of flat filter and bag filter media available to meet the different air quality requirement.

The IAQ Air Handling Unit Design

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YSM/YDM B Series

CONSTRUCTIONExtruded, aluminium profile joined by 3D plastic rounded corners, forming the structural frame to house all internal components. Doubleskin construction is provided by “sandwich” type 25mm/50mm thick panel comprising 0.5mm thick galvanised steel internal skin withcolour bond external skin and injected with polyurethane foam of 40 kg/m3 density, providing an overall thermal transmission coefficientof U=0.68 W/M2K for 25mm and 50mm thick panel, U=0.34 W/M2K.

Sound reduction effect of the panels (measured under test by R = delta L x 10 log S/A, where delta L is the difference in sound pressurelevel across wall in dB, S is the panel surface in M2 and A the acoustic absorption of the test room in M2.) will not be less than:-

Panels are removable from the frame by means of a patented locking system made out of an extruded aluminium profile, held in place withone locking strip. This fastening method, together with an enhanced framework gasket ensure air tightness.

Unit sections are mounted on a thick galvanised steel bolted base frame, to assure stability and permit easy lifting, handling and positioningon site. Unit with sectional split(s), shall be provided with gaskets and sealing material as well as connection clamps, to permit quick andair tight site assembly.

CONTROL DAMPERSAir intake, mixing box dampers have contra-rotating blades (on request parallel operation) with driving shaft for servo-motor operation orlevel actuator for manual control. The standard galvanised steel blades will turn in counter-action providing a smooth operation requiring nolubrication.

FILTRATIONFilter sections are provided to house the following options:Pre-filters of washable type (85% arrestence) or disposable type (85% arrestence) to be arranged in aluminium sliding rails for sideremoval. Main filters, of bag type with 85% or 95% efficiency and 533.4mm (21”) deep housing. The section shall be accessible fromeither side with access door. Besides, filters such as carbon filter, chemical filter, electronic filter, and HEPA filter can be offered as option.

COILSCooling and heating coils are manufactured from copper tubes with aluminium fins bonded to the tubes through mechanical expansionand all housed in galvanised steel frames. Headers come with threaded male pipe connections and include drain and vent. Coils shall betested to 2,400 Kpa, with a maximum design operating pressure of 1,700 Kpa. Condensate pans will be of the “dry pan” design to ensurecomplete condensate removal and made of stainless steel 304 insulated with 12 mm closed cell foam.

FAN MOTOR ASSEMBLYFan section shall be fitted with double inlet, double width, forward curved or backward inclined centrifugal fan (air foil as option), dependingupon air volume and static pressure requirements. Fan inlets are aerodynamically designed and wheels statically and dynamically balancedaccording to rated air flow and speed. Bearings range from either sealed for life ball bearings for smaller fans, block type with self aligningball journals and split pillow blocks with grease points for larger fans.

Fan drives (V belt) shall be factory selected and installed to meet the required performances. Motor shall be TEFC type, class F insulation,IP55 protection. Total fan motor assembly shall be installed on a separate base frame supported and isolated from the unit structure byspring or rubber isolators. Flexible connections shall be provided between fan discharge and casing.

Options:- Dual speed motors (2/4,4/8,4/6,6/8 poles)- Frequency inverter drive for V.A.V applications.- Varies motor voltage and frequency.

Specifications

Mid frequency (Hz) 63 125 250 500 1000 2000 4000Reduction value (db) for YSM 7 13 18 28 39 40 43Reduction value (db) for YDM 8 14 18 36 45 41 43

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Specifications

OPTIONALa) COLD BRIDGE FREE DESIGNThe frame of the York Air Handling Unit is manufactured withbi-material. Internal structure made of extruded fiberglass frame couple with thermal breakproperty. It was tested up to 8.5C off coil temperature without sweating. Our thermal bridgingfactor was found to be at class TBI. (CEN prEN 1886i1997)

b) POSITIVE PRESSURISED SECTIONYork had come up with a brand new design which is the “Positive Pressurised Section” tomeet the precise environmental demands of high technology processes used in advancedcommercial and industrial applications. “Positive Pressurised Section” are meant to couplewith York’s AHU after the blower section. Units with “Positive Pressurised Section” are idealfor clean rooms, clean benches, semiconductor, hospital surgical theatres, food processing,pharmaceuticals, bio tech and chemical industries in which airborne contaminants mustbe carefully controlled. “Positive Pressurised Section” is a unique family of Diffuser andHEPA Filter Section. The Diffuser increases the pressure of a fluid by slowing it down andit will help to spread the air evenly to the HEPA Filter. All HEPA Filter are leak tested and arescanned with laser spectrometer with PSL particles to determine the overall efficiency inaccordance with IES-RP-CCO34-1. There are wide ranges of efficiencies of HEPA Filtersavailable ranging from 99.99% at 0.3m to 99.999995% at 0.12m. Casing leakage level(max. leak rate l / s. sqm) rated as class B.

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Technical Specification

YSM/YDM B Series

Model Coil Area Air Volume1 Cooling2 Capacity Maximum Fan Unit Height Unit Width Mixing Box MB with Pre YSM/YDM (m2) (CMH) (kW) Outlet Area (m2) (Module) (Module) Length 'X' (Module) Length 'Z' (Module) 20 x 20 0.250 2250 16 0.104 2 2 2 2 20 x 30 0.424 3812 30 0.163 2 3 2 2 20 x 40 0.597 5378 42 0.163 2 4 2 2 20 x 50 0.771 6941 56 0.163 2 5 2 2 30 x 30 0.741 6674 52 0.257 3 3 2 3 30 x 40 1.045 9410 69 0.324 3 4 2 3 30 x 50 1.350 12146 92 0.324 3 5 2 3 30 x 60 1.654 14882 117 0.324 3 6 2 3 30 x 70 1.958 17618 134 0.324 3 7 2 3

40 x 40 1.419 12769 98 0.511 4 4 2 3 40 x 50 1.831 16484 131 0.642 4 5 2 3 40 x 60 2.244 20196 160 0.642 4 6 2 3 40 x 70 2.657 23911 181 0.642 4 7 2 3 40 x 80 3.069 27623 215 0.642 4 8 2 3

50 x 50 2.313 20822 165 0.642 5 5 2 3 50 x 60 2.835 25513 199 0.806 5 6 2 3 50 x 70 3.356 30204 229 1.014 5 7 2 3 50 x 80 3.877 34895 270 1.014 5 8 2 3

60 x 60 3.425 30827 241 1.014 6 6 3 4 60 x 70 4.055 36493 275 1.277 6 7 3 4 60 x 80 4.685 42163 326 1.277 6 8 3 4

70 x 70 4.754 42786 326 1.277 7 7 3 4 70 x 80 5.492 49432 383 1.277 7 8 3 4

Model Coil Area Air Volume1 Cooling2 Capacity Maximum Fan Unit Height Unit Width Mixing Box MB with Pre YDM (m2) (CMH) (kW) Outlet Area (m2) (Module) (Module) Length 'X' (Module) Length 'Z' (Module)

70 x 90 6.25 56.270 440 1.605 7 9 3 4

70 x 100 7.02 63.240 502 1.605 7 10 3 4

70 x 110 7.79 70.210 561 1.605 7 11 3 4

70 x 120 8.45 75.990 614 1.605 7 12 3 4

80 x 80 6.13 55.250 424 1.605 8 8 3 4

80 x 90 6.99 62.900 490 1.605 8 9 3 4

80 x 100 7.85 70.550 558 1.605 8 10 3 4

80 x 110 8.7 78.370 628 1.605 8 11 3 4

80 x 120 9.44 85.000 678 1.605 8 12 3 4

Note :

1. Air Volume is based on face velocity of 2.5 m/s.2. Cooling capacity is based on air on coil of 26.7CDB/19.4 CWB, chilled water temperature of 6.7/12.2C at 2.5 m/s face velocity.3. To Calculate Unit Dimension, "Module" = 342mm ie YSM 40 X 60 Height : (4 X 342 + 58 + 100) mm Width : (6 X 342 + 58) mm

For YDM 40 X 60Height : (4 X 342 + 108 + 100) mmWidth : (6 X 342 + 108) mm4. Maximum Shipping Length : 60 Wide Unit = 8 Module Long, > 60 Wide Unit = 6 Module Long.5. Overall installed length for each section split add 58 mm for YSM and 108 mm for YDM to above dimensions.

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Technical Specification

MODEL FAN SECTION Available Fan Discharge Maximum Motor Motor Mounting R/RI Discharge T/TI Discharge Fan Size Size (mm) Size (KW) Position Length 'Y' (Module) Length 'Y" (Module)

20*30 250 330 4 Side 2M 2M

280 370 1.5 / 7.5 Side / Rear 2M / 3M 2M / 3M

315 420 0.75 / 7.5 Side / Rear 2M / 3M 2M / 3M

20*40 250 330 4 Side 2M 2M

280 370 7.5 Side 2M 2M

315 420 7.5 Side 2M 2M

20*50 250 330 4 Side 2M 2M

280 370 7.5 Side 2M 2M

315 420 7.5 Side 2M 2M

30*30 280 370 1.5 / 7.5 Side / Rear 2M / 3M 2M / 3M

315 420 0.75 / 7.5 Side / Rear 2M / 3M 2M / 3M

30*40 315 420 7.5 Side 2M 2M

30*50 400 520 11 Side 3M 3M

450 580 11 Side 3M 3M

30*60 400 520 11 Side 3M 3M

450 580 11 Side 3M 3M

30*70 400 520 15 Side 3M 3M

450 580 22 Side 3M 3M

40*50 450 580 11 Side 3M 3M

500 650 11 Side 3M 3M

40*60 500 650 18.5 Side 3M 3M

560 730 18.5 Side 3M 4M

630 810 11 Side 4M 4M

40*70 500 650 18.5 Side 3M 3M

560 730 18.5 Side 3M 4M

630 810 11 Side 4M 4M

40*80 560 730 37 Side 3M 4M

630 810 30 Side 4M 4M

Vertical Unit

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Technical Specification

YSM/YDM B Series

Horizontal Unit

MODEL FAN SECTION Available Fan Discharge Maximum Motor Motor Mounting R/RI Discharge T/TI Discharge Fan Size Size (mm) Size (KW) Position Length 'Y' (Module) Length 'Y" (Module) 20*20 180 240 3 Rear 2M 2M 250 330 4 Rear 2M 2M 20*30 250 330 4 Side 2M 2M 280 370 1.5/7.5 Side / Rear 2M / 3M 2M / 3M 315 420 0.75 / 7.5 Side / Rear 2M / 3M 2M / 3M 20*40 250 330 4 Side 2M 2M 280 370 7.5 Side 2M 2M 315 420 7.5 Side 2M 2M 20*50 250 330 4 Side 2M 2M 280 370 7.5 Side 2M 2M 315 420 7.5 Side 2M 2M 30*30 280 370 1.5 / 7.5 Side / Rear 2M / 3M 2M / 3M 315 420 0.75 / 7.5 Side / Rear 2M / 3M 2M / 3M 30*40 315 420 7.5 Side 2M 2M 30*50 400 520 11 Side 2M 3M 450 580 11 Side 3M 3M 30*60 400 520 11 Side 2M 3M 450 580 11 Side 3M 3M 30*70 400 520 15 Side 2M 3M 450 580 22 Side 3M 3M 40*50 450 580 11 Side 3M 3M 500 650 11 Side 3M 3M 40*60 500 650 18.5 Side 3M 3M 560 730 18.5 Side 3M 3M 630 810 11 Side 3M 3M 40*70 500 650 18.5 Side 3M 3M 560 730 18.5 Side 3M 4M 630 810 11 Side 3M 4M 40*80 560 730 37 Side 3M 4M 630 810 30 Side 3M 4M 50*50 500 650 11 Side 3M 3M 50*60 560 730 18.5 Side 3M 4M 630 810 11 Side 3M 4M 50*70 630 810 11 Side 3M 4M 710 910 37 Side 4M 4M 800 1020 22 Side 4M 5M 50*80 630 810 30 Side 3M 4M 710 910 37 Side 4M 4M 800 1020 22 Side 4M 5M 60*60 560 730 18.5 Side 3M 4M 630 810 11 Side 3M 4M 60*70 710 910 37 Side 4M 4M 800 1020 22 Side 4M 5M 60*80 710 910 37 Side 4M 4M 800 1020 22 Side 4M 5M 900 1140 56 Side 5M 5M 70*70 710 910 37 Side 4M 4M 800 1020 22 Side 4M 5M 70*80 710 910 37 Side 4M 4M 800 1020 22 Side 4M 5M 900 1140 56 Side 5M 5M 70*90 900 1140 56 Side 5M 5M 1000 1260 56 Side 5M 6M 70*100 900 1140 56 Side 5M 5M 1000 1260 56 Side 5M 6M 70*110 1000 1260 75 Side 5M 6M 70*120 1000 1260 75 Side 5M 6M 80*80 1000 1260 22 Side 5M 6M 80*90 1000 1260 56 Side 5M 6M 80*100 1000 1260 56 Side 5M 6M 80*110 1000 1260 75 Side 5M 6M 80*120 1000 1260 75 Side 5M 6M

8 Jalan Pengapit 15/19, P.O. Box 7196, 40706 Shah Alam, Selangor Darul Ehsan, Malaysia.Copyright by O.Y.L. - Condair Industries Sdn. Bhd., 2004. All rights reserved.Subject to change without notice. Printed in Malaysia.ALL RIGHTS RESERVED

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