Energy Efficient Easy to Install Extended Service Life. Vertical Direct Drive Blower Coils

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1 Energy Efficient Easy to Install Extended Service Life Engineered to save our customers money Eliminate the belt and pulleys Energy efficient EC Motor Improve indoor air quality Nominal CFM range of 00 to 3,000 CFM

2 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils

Table of content 3 Table of Contents -5 Features and Benefits -7 Unit Nomenclature 8 Nominal Capacity and Listing 9- Cooling Capacity Tables -5 Heating Capacity Tables Component Static Resistance

3 Table of content 3 Table of Contents -5 Features and Benefits -7 Unit Nomenclature 8 Nominal Capacity and Listing 9- Cooling Capacity Tables -5 Heating Capacity Tables Component Static Resistance Table 7 Sound Power Data 8- Fan Curves -3 Physical Data -5 Piping Stub-Out Location Electric Heaters Availability, Single Phase 7 Electric Heaters Availability, Three Phase 8 Motor Data 9 Factory-Installed Options 30 Distributed Weight Calculations 3 Filters 3-33 Options - Mixing Box 3 Serial Plate example International Environmental Corporation (IEC) works continually to improve its products. As a result, the design and specifications of each product may be changed without notice and may not be as described herein. Please contact IEC for information regarding current design and product specifications. Statements and other information contained herein are not express warranties and do not form the basis of any bargain between the parties but are merely IEC s opinion or commendation of its products. Manufacturer s standard limited warranty applies. 3 3

Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Direct Drive Blower Coils Meet the Versatile Needs of Our Customer These compact blower coils are ideally suited for a variety

These units provide comfort cooling and heating while offering a broad range of application flexibility between the traditional fan coil unit and a central station air handling unit.

The Direct Drive units can be ordered as: -pipe system -pipe system with electric heat -pipe system Direct expansion system cooling Direct expansion cooling with electric heat Direct expansion

4 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Direct Drive Blower Coils Meet the Versatile Needs of Our Customer These compact blower coils are ideally suited for a variety of ducted applications that require a range of 00 to 3000 CFM, capacities between.5 tons to 9 tons, and generally rated for applications up to.5 w.g of total static pressure. These units provide comfort cooling and heating while offering a broad range of application flexibility between the traditional fan coil unit and a central station air handling unit. Several configurations are available to meet the needs of different climates and applications. The Direct Drive units can be ordered as: -pipe system -pipe system with electric heat -pipe system Direct expansion system cooling Direct expansion cooling with electric heat Direct expansion cooling with hot water heating VDY units are floor-mounted and have a small footprint, allowing fit through a standard 3 door. HDY/VDY are available with left- or right-hand arrangements for design flexibility. Standard Features Variable speed EC Motors (/ HP to 3 HP with built-in thermal overload protection) provides energy savings, quiet operation and easy field adjustment. The motor/ blower assembly is easily removable for fast and efficient maintenance Double-sloped stainless-steel drain pan eliminates water accumulation to prevent mold growth Removable design for easy cleaning Three-sided tool-less filter access with magnetic panels and large size cabinet access panels make routine maintenance fast and efficient. Small footprint allows installation in variety of building constructions and applications Galvanized steel heavy gage cabinet construction enhances unit durability duct collar enables quick field installation Durable filter rack designed to accept, or filters for better IAQ Forward curved, statically and dynamically balanced fans for quieter unit operations Left or Right Hand arrangements for installation and design flexibility Options Variety of heating and cooling coil configurations offer flexibility to meet comfort requirements for most applications Double wall construction provides an easy-to-clean durable surface. Solid or perforated, it helps to reduce case-radiated sound in ducted applications and protects from water and mechanical damage Fully assembled mixing box with low-leak dampers supports outside air ventilation requirements MERV 8 and MERV 3 filter options up to media provide greater IAQ Electric heaters are factory mounted and ETL/cETL certified as an assembly Condensate float switch to prevent leaks and water damage Interlocking disconnect switch to shut off power when an emergency occurs

5 Standard Vertical Direct Drive Blower Coil Features Eliminating the belt reduces install time, parts and maintenance Efficient EC Motor reduces operating costs: Soft start performance reduces the inrush current 3 speed operation allows the fan to run at low speed during light load conditions No belt squeal Soft start motor performance gradually increases fan speed Removable double-sloped stainless steel drain pan eliminates water accumulation Mixing box option circulates in outside fresh air Your Benefit Reduce Costs Experience Quieter Operation Improve Indoor Air Quality Applications Where the application calls for cooling capacities or external static pressures that can not be met with standard or high performance direct drive fan coil units; use an IEC vertical direct drive blower coil. Application Fit Vertical configuration, with 8 different sizes meet a multitude of room layouts and ventilation needs Wide variety of coil options Large Public Areas These units are ideal for applications with a large common area such as restaurants, airports, sports arenas, stadiums, private boxes, gymnasiums, exercise areas, locker rooms, atriums and foyers, auditoriums, shopping malls, equipment or mechanical rooms, and casinos, to name a few. Quality and Safety Every unit tested and inspected at the factory for trouble-free startup Optional condensate float switch Motors have built-in thermal overload protection Optional Interlocking Disconnect Switch ETL and cetl listed Operating Limitations The fan curves outline the airflow and static pressure range where it is acceptable to run these units. On units with electric heat, the minimum airflow shown on the operating envelope must be maintained to prevent electric heat nuisance trips. Installation Considerations (Reference IOM for details) The VDY units are typically installed in a closet or mechanical room. Attention should be paid to have enough clearance around the units for service and maintenance. Units are installed on a pad. Ensure that you have adequate pad height for proper trapping of the condensate drain. Acoustical Considerations With sound becoming more of a concern to design engineers, building owners and occupants, proper consideration should be given to the selection and placement of these units. To further reduce the sound level, additional measures can be taken. Some examples include: using flexible duct connectors lining the main supply and return ducts with acoustical absorption material placing the return air grilles as far away from the unit as possible. 5 5

6 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils UNIT SIZE 0 00 CFM CFM CFM 00 CFM 00 CFM CFM 00 CFM CFM CABINET OPTIONS Drain Pan AS Double Slope Stainless Steel Filter Options C sets of throwaway F Pleated MERV 8 G Pleated MERV8 M MERV with pleated pre-filter U MERV W MERV 3 Insulation C* Closed Cell W Standard Fiberglass S* Premium IAQ Fiberglass (Edges Sealed) G* Foil Face (Edges Sealed) *C, S & G not allowable w/ Double-Wall Mixing box N Front & Top Entering Air comes Standard with Single-blade Dampers Walls Construction Y Single-Wall (Standard) A Double-Wall Construction (Solid Liner) B Double-Wall Construction (Perforated) UNIT NOMENCLATURE COIL Rows BY KY LY 8 B / B7 / K / K7 / PY row DX GY Row DX P row heating (pre-heat position) & row DX G row heating (pre-heat position) row DX 7P row heating (pre-heat position) row DX 7G row heating (pre-heat position) row DX QY row DX 0A FY Row DX 0A Q row heating (pre-heat position) and row DX 0A F row heating (pre-heat position) row DX 0A 7Q row heating (pre-heat position) row DX 0A 7F row heating (pre-heat position) row DX 0A Total rows allowed is 8. Hand R L Right-hand Coil Connections Left-hand Coil Connections Standing in front of the unit facing the filter, hand is determined by looking into the air supply and assigning the hand to match the location of the cooling coil connections. Material(Tube/Fin/Coatings) Y Aluminum Fins w/ Galvanized Wrap S Aluminum Fins w/ Stainless Steel Wrap C Copper Fins with Stainless Steel Wrap

7 Accessories - Vents/Drains Y MAV(Std) A AAV(-Pipe) B AAV(-Pipe) C MAV w/ Drain (-Pipe) D MAV w/ Drain (-Pipe) E AAV w/ Drain (-Pipe) F AAV w/ Drain (-Pipe) MAV - Manual Air Vent AAV - Automatic Air Vent Accessories - TXV T TXV Valve (DX Only) Y None EC MOTOR Motor-Voltage/Phase/Hertz C 5//50-0 D 08//50-0 E 30//50-0 F 77//50-0 N 08/3/50-0 P 30/3/50-0 G 0/3/50-0 Horsepower C / HP E HP F.5 HP (Three Phase only) H 3 HP (Three Phase only) Motor Type M EC Motor, no board (0-0 VDC) N EC Motor, POT board, 3 discrete speeds ELECTRIC HEAT Heater Voltage Y None F 77//0 C 0//0 N 08/3/0 D 08//0 P 0/3/0 E 0//0 G 80/3/0 Heater Kilowatt Y None BY.0 EY.5 GY CY.5 FY 3 GA.5 DY FA 3.5 HY 5 JY PY NL 8 KY 7 QY RY 9.9 LY 8 NH 5 RH 5 NY 9.9 NJ SY 30 Note: Voltage rules required, motor & heater voltage must match. Dual power source is not available. Heater Stage Y None A -Stage, Single-Phase (- kw) B -Stage, Single-Phase (3- kw) C -Stage, 3-Phase (-30 kw) D -Stage, 3-Phase (-30 kw) E 3-Stage, 3-Phase (-30 kw) Rules apply for stages Applications BAY BA3Y BAJ BA3J BPR BP3R CONTROLS BPK BPH BPL BP3K BP3H BP3L st Digit is Control Voltage (B= volt); nd Digit is Type of Control (A=Motor Controls;P=Electric Heat & Motor Controls);Third Digit is Phase (=Single Phase;3=3 Phase);th Digit is Fusing and Disconnect (Y=Std. V Control Fusing and No Disconnect; J=Y plus 0 amp Disconnect; R=Std. V Control Fusing and Heater Fusing, No Disconnect; K=R plus 0 amp Disconnect; H=R plus 0 amp Disconnect; L=R plus 80 amp Disconnect (All electric heat includes thermal limit switch) Special Controls O Overflow Condensate Switch Low Voltage Package V 3-Speed Adjustable (Default) W Proportional (requires 0-0 VDC controller) 7 7

8 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils AHRI Certification IEC s Vertical Direct Drive Blower Coil units are certified in compliance with Air-Conditioning, Heating, and Refrigeration Institute (AHRI) industry standard AHRI-0 for room fan coil units. Approved standard ratings are tabulated below. Nominal Capacity Range Model Unit Size Coil Rows Nominal CFM VDY C-ETL-US Listing IEC s Direct Drive Series blower coil units are listed by Intertek Testing Services (ITS). ITS s C-ETL-US listing signifies that IEC s blower coil units have been examined by ITS and comply with the minimum requirements of U.S. and Canadian national product safety standard, UL 995/CSA C. No. 3, and that IEC s manufacturing site has been audited. ITS s re-examination service includes periodic visits to IEC s factory to ensure continued compliance for all listed products. Water Pressure Drop (ft.water) Cooling Capacity (BTUH) Total Sensible 307 HEATING AND COOLING EQUIPMENT Power Input (Watts) , , , , , , , , , , , , , , , , , , NOTES:. Ratings are based on 80 F (.7 C) DB and 7 F (9. C) WB EAT, 5 F (7. C) EWT, 0 F (5. C) water temperature rise, high fan speed, motor voltage 5//0, and air flow under dry coil conditions.. For all application ratings, use IEC s computer selection program, the quick-selection ratings provided in this catalog, or contact your local IEC representative. 3. For additional information, please consult AHRI s website at 8 8

9 Cooling Capacity Unit Size CFM Rows 0 (/ HP) 08 ( HP) 0 (/ HP) EAT ( F) DB/WB EWT ( F) 75 / / / / / / / / / / / / / / / / / / / / / / / / / / / 3 5 ΔT Total Sensible WPD GPM ( F) (MBH) (MBH) (ft. wg.)

10 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Cooling Capacity, Cont d. Unit Size CFM Rows ( HP) (HP) 0 ( HP) EAT ( F) DB/WB EWT ( F) 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 ΔT Total Sensible WPD GPM ( F) (MBH) (MBH) (ft. wg.)

11 Cooling Capacity, Cont d. Unit Size CFM Rows (-/ HP) 30 (3 HP) EAT ( F) DB/WB EWT ( F) 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 75/3 5 75/ /3 5 ΔT Total Sensible WPD GPM ( F) (MBH) (MBH) (ft. wg.)

12 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Heating Capacity Unit Size CFM Rows 0 (/ HP) 08 ( HP) EWT ( F) ΔT LAT WPD MBH GPM ( F) ( F) (ft. wg.) NOTES:. Based on 70 F (. C) entering air temperature.. For leaving air temperature above 30 F (5. C) consult the factory.

13 Heating Capacity, Cont d. Unit Size CFM Rows 0 (/ HP) ( HP) EWT ( F) ΔT LAT WPD MBH GPM ( F) ( F) (ft. wg.) NOTES:. Based on 70 F (. C) entering air temperature.. For leaving air temperature above 30 F (5. C) consult the factory. 3 3

14 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Heating Capacity, Cont d. Unit Size CFM Rows ( HP) 0 ( HP) EWT ( F) ΔT LAT WPD MBH GPM ( F) ( F) (ft. wg.) NOTES:. Based on 70 F (. C) entering air temperature.. For leaving air temperature above 30 F (5. C) consult the factory.

15 Heating Capacity, Cont d. Unit Size CFM Rows ( / HP) 30 (3 HP) EWT ( F) ΔT LAT WPD MBH GPM ( F) ( F) (ft. wg.)

16 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Component Static Resistance Table (in w.c.) Unit Size Nominal CFM Dry Coil (includes cabinet) Row 5 Row Row 7 Row 8 Row " MERV 8 Pleated (Qty. ) " Throwaway " MERV 8 Pleated Filters " MERV w/prefilter MERV Pleated MERV 3 Pleated Mixing Box

17 Sound Power Data UNIT SIZE RATING FAN SPEED CFM SOUND POWER LEVEL, Lw (db reference one picowatt) 5 Hz 50 Hz 500 Hz K Hz K Hz K Hz 8K Hz A-wgt (dba) Motor HP CASING RADIATED NOTE DUCTED DISCHARGE NOTE 3 90 ESP / 8 CASING RADIATED NOTE DUCTED DISCHARGE NOTE 3,05 ESP NOTE CASING RADIATED NOTE DUCTED DISCHARGE NOTE ESP / NOTE CASING RADIATED NOTE DUCTED DISCHARGE NOTE 3,0,00@.50 ESP NOTE 5 CASING RADIATED NOTE DUCTED DISCHARGE NOTE 3,0,00@.50 ESP NOTE 5 CASING RADIATED NOTE DUCTED DISCHARGE NOTE 3,00,000@.50 ESP NOTE 5 CASING RADIATED NOTE DUCTED DISCHARGE NOTE 3,085,00@.50 ESP / 30 NOTE 5 CASING RADIATED NOTE DUCTED DISCHARGE NOTE ,000@.50 ESP Notes:. Unit Test Configuration: Front Return/Top Supply, Row, 0 FPI Coil, 5/ PH/ 0HZ VAC Motor, Fiberglass Filter, dual density fiberglass insulation.. Testing per AHRI 0-00:...3 Casing radiated with free inlet, Sound Rating of Ducted Air Moving and Conditioning Equipment. 3. Testing per AHRI 0-00:... Ducted discharge, Sound Rating of Ducted Air Moving and Conditioning Equipment.. Unit Test Configuration: Front Return/Top Supply, Row, 0 FPI Coil, 30/ PH/ 0HZ VAC Motor, Fiberglass Filter, dual density fiberglass insulation. 5. Unit Test Configuration: Front Return/Top Supply, Row, 0 FPI Coil, 30/3 PH/ 0HZ VAC Motor, Fiberglass Filter, dual density fiberglass insulation.. Sound power data is expressed in decibels, db RE: x 0- w (picowatts)

18 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils VDY Fan Curves Operating units outside the recommended operating range can cause the electric heater nuisance tripping, condensate carryover and/or fan instability. Recommended operating range control voltage settings shown for reference only. Consult factory for specific voltage settings per application..5 VDY0, / HP Motor.75 TOTAL STATIC PRESSURE RECOMMENDED OPERATING RANGE (0.0 VDC) (5. VDC) (.7 VDC) SCFM RPM VDY08, HP Motor (9.7 VDC) (0.0 VDC) TOTAL STATIC PRESSURE (5. VDC) RECOMMENDED OPERATING RANGE 0.5 (5. VDC) 0.5 (3.5 VDC) SCFM RPM

19 VDY Fan Curves, Cont d. VDY0, / HP Motor.5.5 TOTAL STATIC PRESSURE (. VDC) (0.0 VDC) RECOMMENDED OPERATING RANGE (8.5 VDC) (. VDC) (3.7 VDC) SCFM.5 RPM VDY, HP Motor.5 (0.0 VDC) (0.0 VDC).75 TOTAL STATIC PRESSURE.5.5 (. VDC) RECOMMENDED OPERATING RANGE (8. VDC) (.0 VDC) 0.5 (3.5 VDC) SCFM RPM

20 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils VDY Fan Curves, Cont d. 3 VDY, HP Motor.75.5 (0.0 VDC).5 TOTAL STATIC PRESSURE (5.3 VDC) RECOMMENDED OPERATING RANGE (9.0 VDC) 0.5 (.5 VDC) 0.5 (3.7 VDC) SCFM RPM VDY0, HP Motor TOTAL STATIC PRESSURE (0.0 VDC) RECOMMENDED OPERATING RANGE (8.5 VDC) (.8 VDC) (. VDC) SCFM RPM

21 VDY Fan Curves, Cont d. VDY,.5 HP Motor (0.0 VDC).5 (0.0 VDC) TOTAL STATIC PRESSURE (8.8 VDC) RECOMMENDED OPERATING RANGE (. VDC) (5. VDC) SCFM RPM VDY30, 3 HP Motor TOTAL STATIC PRESSURE (0.0 VDC) (9.0 VDC) (5.9 VDC) RECOMMENDED OPERATING RANGE 0.5 (5. VDC) 0.5 (3.7 VDC) SCFM RPM

22 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils VDY Unit Vertical Direct Drive Drawing is not to scale and is provided for reference only. Dimensions may vary with options ordered. Consult IEC website for up-to-date drawings. Size Fan Size 0 9 x 08 9 x 0 9 x 9 x 0 x 7 0/ x 0 30 x Depth Width Height 0 (508) 0 (508) (559) (559) (559) (0) 8 (7) 8 (7) 8 (7) 37 (90) 37 (90) 7 (9) 8 (9) 8 (9) 3-/ (97) 3-/ (97) 39-3/8 (000) 39-3/8 (000) 39-3/8 (000) 5-/8 () 5-/ (378) Supply Duct Return Duct Aux.Ctrl. Box Unit side to Unit bottom duct flange to duct flange A B C E F L M N 8-7/8 0-7/8 5-/8 -/ -/ -7/8-7/8 (5) (7) (38) () (35) () (8) (73) 8-7/8 0-7/8 5-/8 -/ -/ -7/8-7/8 (5) (7) (38) () (35) ( (8) (73) 8-7/8 0-7/8 -/ 33-/ 5-3/ 0-7/8-7/8 (5) (7) (5) (85) (0) (0) (8) (73) 8-7/8 0-7/8 -/ 33-/ 5-3/ 0-7/8-7/8 (5) (7) (5) (85) (0) (0) (8) (73) 0-3/8-5/8 3-7/8 5-3/ -5/8-7/8 3(7) () (305) () (5) (0) (8) (73) 3-7/8 3 7-/8 -/ 8 -/ -7/8 3-/8 (35) (330) (35) () (57) () (8) (79) -/ -/ -/ 3-5/8-7/8-3/ (3) (35) (0) () (73) (9) (8) (70) NOTES:. RH shown, LH opposite.. All dimensions are +/- /" ( mm). 3. Product specifications are subject to changes without notice.. Dimensions in parenthesis are shown in (millimeters). 5. Allow adequate spacing for maneuverability around unit to allow service through recommended access area.. C dimension is measured from coil side of unit. 7. Mixing Box option will vary return duct dimensions, refer to mixing box submittal.

23 VDY Unit with Optional Mixing Box Drawing is not to scale and is provided for reference only. Dimensions may vary with options ordered. Consult IEC website for up-to-date drawings. Size Fan Size Depth Unit Depth Width Height Supply Duct Return Duct Mix Box Aux.Box Unit side to duct flange Unit bottom to duct flange A B C E F H L M N 0 9 x 35-/ / 8-7/8 0-7/8 5-/8 -/ -7/8-7/8 (90) (508) (7) (97) (5) (7) (38) (0) (5) (79) () (8) (73) 08 9 x 35-/ / 8-7/8 0-7/8 5-/8 -/ -7/8 (90) (508) (7) (97) (5) (7) (38) (0) (5) (79) () (5) (73) 0 9 x 39-/ /8 8-7/8 0-7/8 -/ /8-7/8 (003) (559) (90) (000) (5) (7) (5) (838) (03) (330) (0) (8) (73) 9 x 39-/ /8 8-7/8 0-7/8 -/ /8-7/8 (003) (559) (90) (000) (5) (7) (5) (838) (03) (330) (0) (8) (73) 0 x 7 39-/ /8 0-3/8-5/ /8-7/8 (003) (559) (9) (000) () (305) () (09) (03) (330) (7) () (73) 0/ x 0 -/ 8 5-/8 3-7/8 3 7-/ / -7/8 3-/8 (05) (0) (9) () (35) (330) (35) (8) (03) (330) () (8) (79) 7-/ / -/ /8-7/8-7/8 30 x (07) (7) (9) (378) (3) (35) (0) (8) (5) (38) (9) (8) (73) NOTES:. RH shown, LH opposite.. All dimensions are +/- / ( mm). 3. Product specifications are subject to changes without notice.. Dimensions in parenthesis are shown in (millimeters). 5. Allow adequate spacing for maneuverability around unit to allow service through recommended access area.. C dimension is measured from coil side of unit. 7. Mixing Box option will vary return duct dimensions, refer to mixing box submittal. 8. Mixing Box options include: A) Knockdown base rails for field assembly; B) Pre-assembled Mixing Box. 9. Linkage kit supplied with Mixing Box is provided for field installation of actuator, consisting of crank arms, swivels, and either a 5 (sizes 0-) or 3 (sizes 0-30) length of 5/ rod. 0. Add (5) if using a Prefilter, or (0) filter. 3 3

24 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Piping Connection Location (Centerline to Centerline) Hydronic Cooling and Heating Coils Vertical, right hand unit with re-heat coil shown. D C CR - Cold Water Return HR - Hot Water Return CS - Cold Water Supply HS - Hot Water Supply RH - Right Hand LH - Left Hand B DRAIN A (5) -5/8() 0 0 -/(8) RH UNIT TELL-TALE -7/8(75) G 8-5/8(9) F 0-3/8() E LH UNIT TELL-TALE Coil Header Connection Size 8 Row Row Row Row HW Row HW Unit Size Nom. OD Nom. OD Nom. OD Nom. OD Nom. OD Size Size Size Size Size / / / 0.5 / / /.5 -/.5 -/.5 -/.5 -/.5 Unit Size 0/08 0/ 0/ 30 Coil Rows Cool Heat A B C D E F G 3-/ 5-/ / 3-3/ 5-3/ 7-9/ 7-9/ -/8-3/ 3-/ 5-/ 9-3/ 9-3/ 8-/8 3-3/ 5-3/ 9-3/ 9-3/ 8 0-/ 5-/8 7-/ / 5-7/ 7-7/ 7-9/ 7-9/ 7-3/ -3/8 5-/8 7-/8 9-3/ 9-3/ 8-/8 5-7/ 7-7/ 9-3/ 9-3/ 8 0-/ 7-3/ LH 0-5/8 5-5/8 9-5/ / RH 3-3/8 9-5/ / 7-3/8 3-5/8 0-3/8 7-9/ 7-3/ LH 0-5/8 5-5/8-3/ 9-3/ 7-3/ RH 3-3/8-3/ 9-3/ 8-/8 7-3/8 3-5/8 -/ 9-3/ 8 9-/ 5-5/8 0-/ 7-3/ LH -5/ 5-5/ 7-3/ 3-5/ 9-5/8 RH -/ 7-9/ 7-7/8 5-3/ 9-/ 5 7-3/ 8-3/ LH -5/ 8-/8 7-3/ 3-5/ -3/ RH -/ 9-3/ -9/ 7-7/8 5-3/ -/ 7-/ / 0-/ 5-5/ 7-/ 5-3/ 9 0-5/ 3-3/ 9-/8 7-7/8 5-5/ -5/ 8-/8 7-/ 5-3/ -/8 0-5/ 3-3/ -5/ 9-/8 7-/ 8 0-/

25 Piping Connection Location (Centerline to Centerline) R-0A Cooling with Hot Water Heating Vertical, right hand unit with pre-heat coil shown. D Coil Header Connection Size (Nominal OD in Inches) LL SL Row HW Row HW Unit Size Nom. Nom. Nom. Nom. OD OD OD OD Size Size Size Size 0- / / / 0.5 / / / / 0.5 -/.5 -/.5 -/.5 C B A (5) -5/8() 0 DRAIN HR - Hot Water Return HS - Hot Water Supply LL - Liquid Line SL - Suction Line 0 RH UNIT TELL-TALE H G -7/8(75) 8-5/8(9) F E LH UNIT TELL-TALE SIZE 0/08 0/ 0/ 30 COIL ROWS DX ONLY WATER A B C D E F G PRE-HEAT H -3/ -3/ 5-/ -/ 3-3/ -5/8-5/8 8-7/8 3-/ 3-/ -3/ -/ 7-/8 -/ 3-3/ -5/8-5/8 5-/8 7-/8-7/8 3-/ 3-/ -3/ 7-/8 -/ 5-/8 7-/8 -/ 3-3/ -5/8-5/8-3/ /8 -/8 -/8-5/8-3/ -/ 7-/8 5-/ 9-3/ -/ 3-3/ -5/8-5/8-3/ 7-/ -5/8 5-7/8-3/ -/ -5/8-5/8 5-3/8-3/ -/8 5-7/8 -/ -/8-7/8 5-3/8 0-3/8 3-7/8-3/8 -/ -5/8 5 5

26 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Electric Heater Selection Electric heaters are available on IEC Direct Drive blower coils for total electric heat. Total Electric Heat Total electric heat eliminates the requirement for a boiler and provides heating and/or cooling on an individual basis throughout the year. Electric heat is available only for single source power (motor and heater voltage the same). Heater Construction Single Phase Electric Heater Availability The heater coils are made of high-grade resistance wire and they are supported by ceramic insulators on plated steel brackets. These heat elements are suspended directly in front of the outlet after the blower and the coil. An auto and a manual thermal limit switch protect the heater in the event of air failure. For electric heat control options refer to page 9. kw Electric Heat Amps Unit Size Heater Stages Single Phase ( or stage) V 08V 0V 77V stg stg stg stg stg stg stg stg stg stg stg stg X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Available option Not available option NOTES:. Electric Heating Capacities BTUh)=Heater kw x 33. Electric Heater Amperage for Single-phase Power = (Heater kw x 000)/Applied Voltage

27 Three Phase Electric Heater Availability kw Electric Heat Amps Three Phase (, or 3 stage) Unit Size Heater Stages 8 0 0/ 30 08V 0V 80V stg stg stg stg stg stg stg stg 3stg stg stg 3stg stg stg 3stg stg stg 3stg X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X Available option Not available option NOTES:. Electric Heating Capacities BTUh)=Heater kw x 33. Electric Heater Amp. for 3-phase Power = (Heater kw x 000)/(Applied Voltage x.73). 7 7

28 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Motor Data Thermal Overload Protection All standard motors on Vertical Direct Drive units furnished by IEC contain internal thermal overload protection. The overload automatically resets when the temperature returns to a safe limit. These thermal overloads replace the need for motor starters. Motor Performance Data (Full Load AMPS) MOTOR TYPE VOLTAGE UNIT SIZE 0, 0 08,,, 0 30 MOTOR HORSEPOWER AND FLA / HP HP -/ HP 3 HP -PHASE SINGLE SPEED STANDARD EFFICIENCY 3-PHASE SINGLE SPEED STANDARD EFFICIENCY 5V/ PHASE/50-0 HZ. 0.7 N/A N/A 08V/ PHASE/50-0 HZ N/A N/A 30V/ PHASE/50-0 HZ N/A N/A 77V/ PHASE/50-0 HZ N/A N/A 08V/3 PHASE/50-0 HZ V/3 PHASE/50-0 HZ V/3 PHASE/50-0 HZ

29 Factory Installed Options Controls: Motor Controls: Two controls schemes are available: 3 - Speed adjustable. Proportional (0-0 VDC) Electric Heat Controls Electric heaters come standard with a transformer, heater contactors, electric heat fusing, a terminal strip and -volt control fusing. Condensate Float Switch A water-level sensing device designed to prevent drain pan overflow. The standard switch is wired normally closed. Switches are available only in V. An optional interlocking disconnect switch is available. Control Box Electric Heater Limit Switch Knob Auxillary Control Box (supplied when ordered with Heater Fuses 3-speed controls) Disconnect Switch Bonded Ground V Control Fuse Wrapper Serial Plate Wiring Diagram Contactors Terminal Strip (inside the door) Transformer Above is the example of Control box for Size 0 unit with electric heat and disconnect switch. Equipment Ground Terminal Motor Control Board 9 9

30 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Unit Total Weight The following operating weight information is based on 8-row water-filled coils and double wall cabinet construction. For a different coil and cabinet options, use the weight correction factor table. Vertical Units (Top View) B A A B LH COIL RH COIL D C C D NOTE: Some unit components are removed for clarity. Vertical Unit Corner Weight VDY Unit No Electric Heat (lb.) With Electric Heat (lb.) A B C D Total A B C D Total Total Unit Weight Adjustment (lb.) VDY These weights are for 8-row water-filled coils and double wall construction. For a different number of rows, total unit weight can be determined by steps below: a. Identify the size of unit and number of rows b. From the previous table, identify the total weight of the unit c. From the table below, identify the correction factor and deduct this factor from the total weight. Options Row Coil Row Coil Row Coil Row Coil Single Wall Construction NOTE:. Unit weights (shown in pounds), +/- 0 percent, are based on the largest water-filled coil

31 Filters The Direct Drive cabinet model unit has a set of pleated MERV 8 filters furnished as standard equipment. Unit Size Filter Quantity Nominal Filter Sizes Inches (Millimeters) VDY 0 -/" x " (9 x 0) 08 -/" x " (9 x 0) 0 8-/" x 33" ( x 838) 8-/" x 33" ( x 838) 8-/" x -/" ( x 5) 0/ 0-/ x " (5 x 559) 30 9" x " (737 x 559) Universal Filter Rack Design - Features and Benefits Side and top filter removal No tools needed for easy filter change, usage of super strong magnets in place of hardware Choice of, or filters Easy to modify in the field for either, or filters Robust design eliminates unit s sagging " FILTER " FILTER C SEE DETAIL X MAGNETS SEE DETAIL Y DETAIL X FILTER SUPPORT ANGLE BRACKET D " FILTER A B FILTER SUPPORT ANGLE BRACKET " FILTER BRACKET MOUNTING HOLES " FILTER BRACKET MOUNTING HOLES DETAIL Y 3 3

32 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Mixing Boxes Mixing boxes can be used when outside air is required. Mixing boxes come with base rails. Refer to the drawings on pages 3 and 33 for additional information. Mixing Box with Base Rails Mixing box option includes : ) knockdown base rails for field assembly, and ) pre-assembled mixing box. Base rails are letter coded for ease of assembly and all hardware required for assembly is included. Linkage kit consists of crank arms, swivels, and either a 5 (sizes 0-) or a 3 (sizes 0-30) length of 5/ rod provided for field installation of actuator. Consult factory for the V damper actuator option. Mixing box option adds 3 to the unit height due to the base rails. TOP/FRONT INLET MIXING BOX Base Rail Details (5) A W FRONT VIEW (5) D SIDE VIEW 3(7) Vertical Units Dimensions - Inches (Millimeters) Unit Type and Size W D A VDY0 8 (7) 35.5 (90). (09) VDY08 8 (7) 35.5 (90). (09) VDY0 37 (90) 39.5 (003) 8. (0) VDY 37 (90) 39.5 (003) 8. (0) VDY 7 (9) 39.5 (003) 8. (0) VDY0/ 8 (9).5(05) 8. (0) VDY30 8 (9) 7.5(07) 0. (5) 3 3

33 Mixing Boxes Mixing Box Details TOP VIEW TOP/FRONT INLET - VDY A (0).().() B W A H 3(7) (5) C (5) Dimensions - Inches (Millimeters) Unit Size H W A B C (70) 8 (7) (5) (0) (79) (70) 8 (7) (5) (0) (79) (5) 37 (90) 8 (03) 33 (838) 3 (330) 0.5 (5) 37 (90) 8 (03) 33 (838) 3 (330) 0.5 (5) 7 (9) 8 (03) 3 (09) 3 (330) 0/.75 (578) 8 (9) 8 (03) (8) 3 (330) 30 3 (787) 8 (9) 0 (5) (8) 5 (38) Note: Add (5) to total unit length if using prefilter or filter with mixing box option

Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Serial Plate example INTERNATIONAL ENVIRONMENTAL CORP For Replacement Parts Call -8-3-778 Model No: VDY00033 Unit Serial No:

34 Horizontal Vertical Direct Drive Direct Blower Drive CoilsBlower Coils Serial Plate example INTERNATIONAL ENVIRONMENTAL CORP For Replacement Parts Call Model No: VDY00033 Unit Serial No: ELECTRICAL ENV/PERF Motor(s): QTY of Motor(s): Motor VPH: Motor FLA: Motor HP: HP Min Circ Amps: 5.9A Heater AMPS:.A Heater Kw: 3.0 kw Heater VPH: E //0 7.0A Motor Current:.30A 08//0 Max ESP: - Max Inlet Water Temp: Max Outlet Air Temp: - Max Hot Water or Steam: High Side Coil Design: Low Side Coil Design: Coil Test: 300 PSIG Refrigerant Type: ARI Model: F PSIG Max Water Coil Leaving Air or Max Motor AMB: Max Fuse or Max Circ Breaker (HACR Type NEC): - 5A - SCCR: 5KA Replacement Parts: Manufactured in the USA Unit Intended for Indoor Use Only & Suited For 0.00 Clearance From Combustible Surfaces 3 3

35 35 35

36 Contact your local IEC Sales Representative for further details and pricing applicable to this product. Visit our website (iec-okc.com) to find your local IEC Sales Rep. IEC Catalog Part #: I CA-09(/09) 09 International Environmental Corporation (IEC) PO Box 598 Oklahoma City, OK P: F:

DIRECT DRIVE BLOWER COILS

DIRECT DRIVE BLOWER COILS Horizontal HDY Vertical VDY Upgrade to IEC s Direct Drive Blower Coils Energy Efficient Energy Efficient Easy Easy to Installation Install Extended Service Life Engineered to