IPV, IDV Series. Induction Terminal Unit F-354. Product Information. 5 DDC Controls Supplied by Others. D Digital

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1 Product Information General Information The Price model variable volume induction terminals are designed to provide the benefits of precise, efficient control of conditioned supply air to match room temperature loads and the energy conscientious use of ceiling plenum return air to insure satisfactory room air motion. The conditioned supply air (primary air) flowing through a carefully engineered variable aperture 'flow nozzle' provides the induction of the warm plenum air without the use of integral fans. Induction of ceiling plenum air has two major benefits. First, it helps to optimize energy use as it uses the 'free heating' available in the warm plenum air where it is required. Secondly, the induction of the plenum air causes a larger air volume delivery to the space, resulting in greater room air motion and increased comfort. The Price series of induction terminals is designed to operate efficiently over an inlet static pressure range from 0.5 in. to 4.0 in. It uses the Price SP300 multipoint inlet sensor to accurately measure the primary airflow under varying flow conditions. This series of terminals is available with several pneumatic (IPV) and digital (IDV) control schemes to satisfy most applications. 1 and 2 row hot water coils are also available to provide additional heating capability in perimeter applications. Construction Housing 22 gauge zinc-coated steel construction mechanically sealed and gasketed. Internal housing insulation 3 /4 in. fiberglass. Internal discharge plenum 1 in. thick foil backed duct board. Heavy gauge zinc-coated steel induction nozzle and return air damper. Full 2 in. zinc-coated steel discharge flange. Solid 1/2 in. zinc-coated return air damper shaft and induction nozzle shaft. Hot water coil accessory unit construction is copper tubing, aluminum fins. Airflow Schematic Model IPV8000 Product Key Features/Benefits IXV Control Type P Pneumatic D Digital Easily removable bottom access panel provides accessibility to induction nozzle and actuator for inspection and servicing. Multi-blade return air damper provides sensitive airflow control with minimum blade stick out, for tight installations. Low inlet static pressure requirements (0.5 in. w.g.) allow for reduced fan sizing. SP300 multipoint flow sensor designed to maintain control accuracy independent of field installation conditions. Gauge taps for flow measurement and balancing supplied with factory mounted pneumatic controls (optional for digital controls by others). XOOO Primary Air Control 5 DDC Controls Supplied by Others Options Available: Controller cover Foil faced internal insulation (FB 5 /8 in. [16] foil thick board fiberglass). F-354

2 Dimensional Data IPV 8000 Multi-Point Sensor (gauge taps optional) Notes: Internal insulation meets requirements of NFPA 90A and UL gauge zinc-coated steel housing mechanically sealed and gasketed, leak-resistant construction. Controls and induction damper may be left hand or right hand arrangement. Gauge taps are standard for units with factory mounted pneumatic controls. (optional with digital controls by others). Controls externally mounted. Clean, dry 20 psi [138 kpa] control air required. Options: Controller cover Hanger brackets Unit Size cfm Range L/s Range IP Units (in.) SI Units [mm] Inlet Return Air Discharge Inlet Return Air Discharge A B C D E F L W H A B C D E F L W H / /2 5 1 / / / / / /2 5 1 / / / / / / / / / / / / / / / / / / Dimensional Data with Hot Water Coil IPV 8000 Notes: Internal Insulation meets requirements of NFPA 90A and UL gauge zinc-coated steel housing mechanically sealed and gasketed, leakresistant construction. Controls, induction damper and reheat coil may be left hand or right hand arrangement. Gauge taps are standard for units with factory mounted pneumatic controls. Clean, dry 20 psi [138 kpa] control air required. Allow 1 1 /2 in. [38 ] minimum clearance for coil tubes as indicated. Controls externally mounted. Method of venting reheat coil is to be provides by installing contractor. Hot water coils have copper tubes and aluminum fins with O.D. sweat connections. Hot water reheat coil connection O.D. is 1 /2 in. [13] on size 6, 1 row. All other 1 row and 2 row are 7 /8 in. [22] O.D.. Options: Controller cover Hanger brackets Unit Size cfm Range L/s Range Copyright Price Industries Limited IP Units (in.) All Metric dimensions ( ) are soft conversion. SI Units [mm] Inlet Return Air Discharge Inlet Return Air Discharge A B C D E F L W H A B C D E F L W H / /2 5 1 / / / / / /2 5 1 / / / / / / / / / / / / / / / / / / F-355

3 Dimensional Data IDV 5000 Notes: Internal Insulation meets requirements of NFPA 90A and UL gauge zinc-coated steel housing mechanically sealed and gasketed, leak-resistant construction. Controls and induction damper may be left hand or right hand arrangement. Digital controls supplied by control contractor. Consult customer service for approved components. Controls externally mounted. Gauge taps are standard for units with factory mounted pneumatic controls. Options: Controls enclosure Disconnect switch Hanger brackets Unit Size cfm Range L/s Range IP Units (in.) SI Units [mm] Inlet Return Air Discharge Inlet Return Air Discharge A B C D E F L W H A B C D E F L W H / /2 5 1 / / / / / /2 5 1 / / / / / / / / / / / / / / / / / / Dimensional Data with Hot Water Coil IDV 5000 Notes: Internal Insulation meets requirements of NFPA 90A and UL gauge zinc-coated steel housing mechanically sealed and gasketed, leak-resistant construction. Controls, induction damper and reheat coil may be left hand or right hand arrangement. Controls externally mounted. Allow 11/2 in. [38] minimum clearance for coil tubes as indicated. Method of venting reheat coil is to be provides by installing contractor. Water reheat coils are copper tubes and aluminum fins with O.D. sweat connections. Water coil connection O.D. is 1 /2 in. [13] on size 6, 1 row. All other 1 row and 2 row are 7 /8 in. [22] O.D.. Options: Controls enclosure Disconnect switch Hanger brackets Unit Size cfm Range L/s Range IP Units (in.) SI Units [mm] Inlet Return Air Discharge Inlet Return Air Discharge A B C D E F L W H A B C D E F L W H / /2 5 1 / / / / / /2 5 1 / / / / / / / / / / / / / / / / / / F-356

4 Controls Operating Sequence Principle of Operation Description The basic unit (see Figure 1) consists of a conditioned supply air inlet, with combination damper/jet flow nozzle (A), actuator (B), velocity sensor (C) and related control), an internal discharge plenum/duct (D), an acoustically lined casing (E), and a motorized induction damper (F). Standard Sequence of Operation If the room temperature rises above the set-point the thermostat resets the primary air damper/jet nozzle to a higher flow rate. When the room temperature exceeds the reset range of the thermostat the primary airflow is held constant at its design maximum and the induction damper is fully closed. This delivers 100% conditioned air to the space for maximum cooling (see Figure 2). As the space temperature starts to become satisfied the primary airflow is decreased. The nozzle-like design of the primary air damper creates a high velocity discharge jet directed into the internal discharge plenum. This jet action in turn creates a low pressure zone within the terminal casing. Simultaneously the induction damper modulates open to allow warm ceiling plenum air to be drawn into the terminal casing, mixed with the high velocity primary air in the internal discharge plenum and discharged from the terminal. The total supply air volume will tend to remain nearly constant (at or near the primary maximum rating) until the primary flow drops to about 50% of its maximum (see Figure 3). As the space thermostat becomes satisfied the primary supply damper/ nozzle will be throttled to its minimum flow position. At this point the induction damper will be in its full open position. The total air volume will also be at its minimum at this time (see Induction Performance Table on page F454). If the space temperature drops below the thermostat set-point the primary airflow will be maintained at its minimum setting resulting in the minimum rate of induced and mixed total air being delivered. At this point, if so equipped, the terminal unit s hot water coil will modulate open, proportionally to the heating load (or a separate downstream electric coil will energize) to satisfy the heating demand. Figure 1 Figure 2 Figure 3 Figure 4 Copyright Price Industries Limited All Metric dimensions ( ) are soft conversion. F-357

5 Performance Data Typical Selection Guide Discharge NC Basic Unit Ps Across Unit Radiated NC Basic Unit Ps Across Unit Minimum Operating Inlet Static Pressure w/ 1 or 2 Row Unit Airflow Basic Unit H.W. Coil 0.5 in. w.g.1.5 in. w.g.3.0 in. w.g. 0.5 in. w.g.1.5 in. w.g.3.0 in. w.g. Size cfm L/s in.w.g Pa in.w.g Pa 125Pa 375Pa 750Pa 125Pa 375Pa 750Pa NCs are derived from sound power levels, which are obtained in accordance with AHRI Standard and ASHRAE Standard NCs are derived from sound power levels which include duct end corrections per AHRI Standard Blank spaces (--) indicate NCs less than Asterisks (*) indicate minimum static pressure of the unit exceeds the minimum operating pressure across the unit. 5. Airflow is given in L/s and cfm. 6. Pressure is given in Pa and in. w.g. 7. P s is the difference in static pressure from inlet to discharge of the unit. 8. NC values are calculated based on typical attenuation values outlined in Appendix E, AHRI Standard , A Procedure for Estimating Occupied Space Sound Levels in the Application of Air Terminals and Air Outlets. Typical Attenuation Values: Radiated Sound Total Deduction Octave Band Mid Frequency, Hz All Sizes Discharge Sound Total Deduction Octave Band Mid Frequency, Hz < 300 cfm cfm > 700 cfm F-358

6 Typical Selection Guide NC levels presented in the Typical Selection Guide are based on typical attenuation values as outlined in AHRI Standard , Appendix E. AHRI Standard , Appendix E provides typical sound attenuation values for air terminal discharge sound and air terminal radiated sound. The typical attenuation values are recommended for use by manufacturers to estimate application sound levels. In product catalogs the end use environments are not known and the factors presented in AHRI Standard are provided as typical attenuation values. Use of these values will allow better comparison between manufacturers and give the end user a value which will be expected to be applicable for many types of spaces. Following is a detailed description of the typical attenuation values used to determine NC levels. Radiated Sound Table E-1 of Appendix E provides typical radiated sound attenuation values for three types of ceilings: Type 1 Glass Fiber; Type 2 Mineral Fiber; Type 3 Solid Gypsum Board. Since Mineral Fiber tile ceilings are the most common construction used in commercial buildings, the attenuation values in the Typical Selection Guide are based on Type 2 Mineral Fiber. The following table provides the calculation method for the radiated sound total attenuation values based on AHRI Standard Octave Band Mid Frequency, Hz Environmental Effect Ceiling/Space Effect Total Attenuation Deduction The ceiling/space effect assumes the following conditions: 1. 5/8 in. tile, 20 lb/ft 3 density 2. The plenum is at least 3 ft deep 3. The plenum space is either wide (over 30 ft) or lined with insulation 4. The ceiling has no significant penetration directly under the unit. Discharge Sound Table E-1 of Appendix E provides typical discharge sound attenuation values for three sizes of terminal units. 1. Small box defined as a unit with discharge duct of approximately 8 in. x 8 in. and capacity less than 300 cfm. 2. Medium box defined as a unit with discharge duct of approximately 12 in. x 12 in. and capacity between cfm. 3. Large box defined as a unit with discharge duct of approximately 15 in. x 15 in. and capacity of greater than 700 cfm. The following tables provide the calculation method for the discharge sound and total attenuation values based on AHRI Standard Small Box Octave Band Mid Frequency, Hz Airflow < 300 cfm Environmental Effect ft [1.5 m] Duct Lining End Reflection ft [1.5 m], 8 in [200 mm] Flex Duct Space Effect Sound Power Division Total Attenuation Deduction Medium Box Octave Band Mid Frequency, Hz Airflow cfm Environmental Effect ft [1.5 m] Duct Lining End Reflection ft [1.5 m], 8 in [200 mm] Flex Duct Space Effect Sound Power Division Total Attenuation Deduction Large Box Octave Band Mid Frequency, Hz Airflow > 700 cfm Environmental Effect ft [1.5 m] Duct Lining End Reflection ft [1.5 m], 8 in [200 mm] Flex Duct Space Effect Sound Power Division Total Attenuation Deduction For a complete explanation of the attenuation factors and the procedures for calculating room NC levels, please refer to AHRI Standard NC vs Sound Power Levels Compare Them Carefully Price represents the sound performance data for the induction terminals in two manners. The laboratory attained discharge and radiated sound power levels for each unit at various flows and inlet static pressures is presented in the Acoustical Data tables. This data is derived in accordance with AHRI Standard 880 and shows the 'raw' sound power levels of the terminal in the 2nd through 7th octave bands with NO attenuation allowances. This data includes AHRI standard ratings which are on record with the Air-Conditioning Refrigeration Institute. Price also offers this Typical Application and Selection Guide to assist you in selecting the proper size and configuration of terminal for your needs. The attenuation allowances listed are based on values Copyright Price Industries Limited suggested in AHRI Standard , Appendix E. The suggested attenuation allowances are intended to be representative of typical jobsite constructions. If your conditions differ significantly from these it is recommended you utilize the sound power level data on pages F306 and the procedures outlined in AHRI Standard If the NC levels listed in the Price catalog are being compared to other manufacturers Catalogd NC information, a careful review of the other manufacturers attenuation allowances must be made. If allowances other than recommended AHRI Standard , Appendix E are used, a fair comparison of NC levels cannot be performed. All Metric dimensions ( ) are soft conversion. F-359

7 Application Details Induction Performance Inlet Static Discharge Static % Primary Air Pressure (in. w.g.) c/w 1 or 2 Row Pressure Basic Assembly H.W. Coil (in. w.g.) Total Discharge Air (Expressed as a % of the Primary Air Volume) Size 6 and Inlet Static Discharge Static % Primary Air Pressure (in. w.g.) c/w 1 or 2 Row Pressure Basic Assembly H.W. Coil (in. w.g.) Total Discharge Air (Expressed as a % of the Primary Air Volume) Size 10 and Inlet Static Discharge Static % Primary Air Pressure (in. w.g.) c/w 1 or 2 Row Pressure Basic Assembly H.W. Coil (in. w.g.) Total Discharge Air (Expressed as a % of the Primary Air Volume) Size Induction value (percentage) based on maximum rated flow and a minimum of zero induction percentages may vary at other flow settings. Air Volume Charts IPV Capacity Unit Size L/s Min. L/s cfm Min. cfm IEV/IDV Capacity Unit Size L/s Min. cfm Min The air volume ranges listed are recommended for optimum performance. Selection of airflow limits below the listed values is not recommended. Stability and accuracy may not be acceptable at lower than recommended airflow limits. F-360

8 Discharge Sound Power Levels, Basic Assembly Sound Power Levels Lw db re Watts 1.5 in. w.g. [125 Pa] 2.5 in. w.g. [250 Pa] 3.0 in. w.g. [375 Pa] Unit Airflow Octave Band Octave Band Octave Band Size L/s cfm Test data obtained in accordance with AHRI Standard and ASHRAE Standard Sound power levels include duct end corrections per AHRI Standard Please refer to page F25 for more details. 3. Airflow given in L/s and cfm. 4. Pressure is given in Pa and in.w.g. 5. AHRI certified data is highlighted in blue. All other data are application ratings. 6. Application ratings are outside the scope of the AHRI 880 Certification Program. 7. Asterisks (*) indicate minimum static pressure of the unit exceeds the minimum operating pressure across the unit. 8. Dashes (--) indicate sound power levels below for each octave band; values below these sound power levels are considered below significance per AHRI 880. Copyright Price Industries Limited All Metric dimensions ( ) are soft conversion. F-361

9 Radiated Sound Power Levels, Basic Assembly Sound Power Levels Lw db re Watts 1.5 in. w.g. [125 Pa] 2.5 in. w.g. [250 Pa] 3.0 in. w.g. [375 Pa] Unit Airflow Octave Band Octave Band Octave Band Size L/s cfm Test data obtained in accordance with AHRI Standard and ASHRAE Standard Sound power levels include duct end corrections per AHRI Standard Please refer to page F25 for more details. 3. Airflow given in L/s and cfm. 4. Pressure is given in Pa and in.w.g. 5. AHRI certified data is highlighted in blue. All other data are application ratings. 6. Application ratings are outside the scope of the AHRI 880 Certification Program. 7. Asterisks (*) indicate minimum static pressure of the unit exceeds the minimum operating pressure across the unit. AHRI Certification Rating Points Unit Rated Airflow Minimum Operating Pressure Required Discharge Sound Power Level, db at 1.5 in. w.g. [375 Pa] Octave Band Radiated Sound Power Level, db at 1.5 in. w.g. [375 Pa] Octave Band Size L/s cfm Pa. in. Water L/s, liters per second. 2. cfm, cubic feet per minute. 3. Pa, Pascals gauge. 4. Sound power levels expressed in decibels, (db) re watts. 5. Sound power levels include duct end corrections per AHRI Standard Please refer to page F25 for more details. F-362

10 1 and 2 Row Hot Water Coil Data IP Units Unit Size 6 Coil HD Airflow Rate (cfm) Rows gpm Loss Row Single Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Unit Size 8 Coil HD Airflow Rate (cfm) Rows gpm Loss Row Single Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Unit Size 10 Coil HD Airflow Rate (cfm) Rows gpm Loss Row Multi Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Unit Size 12 Coil HD Airflow Rate (cfm) Rows gpm Loss Row Single Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps See Performance Notes on F458. Copyright Price Industries Limited All Metric dimensions ( ) are soft conversion. F-363

11 1 and 2 Row Hot Water Coil Data IP Units Unit Size 14 Coil HD Airflow Rate (cfm) Rows gpm Loss Row Multi Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Correction Factors 1 and 2 Row Hot Water Coils T F Factor Tabulated values are in MBH (thousands of Btu per hour) 2. Tables are based on a temperature difference of 125 F (180 F entering water temperature and 55 F entering air temperature). For other temperature differences, multiply MBH values by factors as listed above. 3. Minimum air and water flow values are based on ASHRAE recommendations for coil selection. For selections outside these tabulated air or water flow values, please consult your Price representatives. 4. Do not select coils for a leaving air temperature above 120 F. 5. HD (Head) loss is in ft of water. 6. Through the coil Ps is the pressure drop in in. of water across the coil. 7. For fan capacity with coils, see fan curves. 8. Air Temperature rise = ATR ATR( F) = 927 x MBH/cfm. 9. Water Temperature Drop = WTD WTD( F) = 2.04 x MBH/gpm. 10. Values in tables are listed for 0 ft of altitude and no glycol in the system. 11. Connections: One Row Size 6-1/2 in. OD male solder, All others 1 Row, 7/8 in. OD male solder, 2 row size 6 2 Row 7/8 in. OD male solder. 12. For information outside the ranges used in the table, consult your Price representative for accurate coil information. 13. Heating coils used in this unit have performance rated and certified in accordance with the current edition of AHRI Standard 410. F-364

12 1 and 2 Row Hot Water Coil Data SI Units Unit Size 6 Coil HD Airflow Rate (L/s) Rows L/s Loss Row Single Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Unit Size 8 Coil HD Airflow Rate (L/s) Rows L/s Loss Row Single Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Unit Size 10 Coil HD Airflow Rate (L/s) Rows L/s Loss Row Multi Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Unit Size 12 Coil HD Airflow Rate (L/s) Rows L/s Loss Row Single Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps See Performance Notes on F460. Copyright Price Industries Limited All Metric dimensions ( ) are soft conversion. F-365

13 1 and 2 Row Hot Water Coil Data SI Units Unit Size 14 Coil HD Airflow Rate (L/s) Rows L/s Loss Row Multi Circuit Through the Coil, Ps Row Multi Circuit Through the Coil, Ps Correction Factors 1 and 2 Row Hot Water Coils T C Factor Tabulated values are in KW. 2. Tables are based on a temperature difference of 64 C (82 C entering water temperature and 18 C entering air temperature). For other temperature differences, multiply MBH values by factors as listed above. 3. Minimum air and water flow values are based on ASHRAE recommendations for coil selection. For selections outside these tabulated air or water flow values, please consult your Price representative. 4. Do not select coils for a leaving air temperature above 49 C. 5. HD (Head) Loss is in kpa. 6. Through the Coil Ps is the pressure drop in Pa across the coil. 7. Air Temperature rise = ATR ATR( C) = 829 x kw/l/s (Airflow) 8. Water Temperature Drop = WTD WTD( C) = x kw/l/s (Water Flow) 9. Values in tables are listed for 0 meters of altitude and no glycol in the system. 10. Connections: One Row, Size 6 13mm OD male solder All other 1 Row sizes, 22mm OD male solder. Two Row 22 mm OD male solder. 11. For information outside the ranges used in the table, consult Price your representative for accurate coil information. 12. Heating coils used in this unit have performance rated and certified in accordance with the current edition of AHRI Standard 410. F-366