IRPV / IRDV Series

Product Information


General Information
Price Internal Retrofit Unit (variable air volume) are designed to replace mechanical constant volume regulators in existing Buensod and Krueger terminals. This retrofit is simply accomplished by removing the original mechanical regula­tor through the existing access panel and installing the retrofit unit on the old regulator flange. Factory drilled mounting slots are provided to accommodate the hole pattern of the old regulator flange.

In addition to the benefits of variable air volume operation, Price internal retrofit units offer enhanced control and reduced pressure drop when compared to the existing mechanical regulator. The choice of direct digital controls provides further advantages of monitoring and control.

  • Mchanical units can be easily retrofitted through the existing access door without ductwork modifications.
  • Units fabricated from 22 gauge zinc-coated steel, mechanically sealed, leak-resistant.
  • Slotted mounting holes are provided for fastening to existing regulator flange.
  • Damper leakage less than 2% of nominal flow at 3.0 in. inlet static as tested by ASHRAE Standard 130.
  • SP300 multipoint flow sensor designed to maintain control accuracy indepen-dent of field installation conditions.
  • Gauge taps for flow measurement and balancing supplied with factory mounted pneumatic controls (optional for digital controls by others).
  • Pressure independent operation.
  • Available with pneumatic, electronic or direct digital controls.
  • Actuator is factory-mounted, con¬≠troller is shipped loose for field mounting. Controls enclosure is an available option.


Product Key
Product Selection Checklist

  1. Select Unit Inlet Size based on control parameters.
  2. Select Control type (Pneumatic, Electronic, Digital) based on system design.
  3. Select Control Sequence based on system design.

Internal Retrofit For:
Buensod Design 14 Model H, HL Single Duct
Buensod Design 14 Model H, HL Dual Duct
Buensod Design 16 Model H, HL Single Duct
Buensod Design 16 Model H, HL Dual Duct
Krueger Model CVM Single Duct
Krueger Model CVM Dual Duct

Buensod is registered trademark of Hart & Cooley Inc.

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