VariTrane™ Round In Round Out
VariTrane™ Round In Round Out
The Round-in/Round-out VAV unit (VRRF) is a retrofit product designed to simplify upgrading of an existing old-style VariTrane™ units to DDC.
Product Overview
VariTrane™ Round Inlet/Round Outlet
Round Inlet/Round Outlet (VRRF) units are designed to improve energy efficiency and reduce overall operating cost in existing systems.
Typical VRRF retrofit applications include:
- Bypass/replace existing mechanical regulator (air valve)
- Upgrade building and/or unit controls (e.g. Pneumatic to BACnet®) with or without replacing the mechanical regulator (air valve)
- Convert Constant Air Volume System to Variable Air Volume System
- Convert pressure dependent Variable Air Volume System to pressure independent Variable Air Volume System (e.g. Trane® VariTrac®)
- Convert Multizone (Dual Duct) Systems to Variable Air Volume System
VRRF units are also applied in non-retrofit or new applications, notably small building variable air volume systems also known as Zoned Rooftop Systems.
Overview
- Available Sizes: 4 in. to 16 in.
- Airflow Range: 0 - 4,000 cfm
- Available for installation in both vertical and horizontal airflow
- Optional adapter plate for easy integration with legacy Trane VAV units
- Optional LEED wrap for preventing contamination during the construction phase
- Optional factory mounted, wired, tested and commissioned pressure independent controls
- DDC (Comm3 or Comm 4), LonTalk, BACnet Communication
- Trane Air-Fi® Wireless Communication
- Additional factory mounted, wired, tested options
- Modulating actuator
- Power fuse
- Control power transformer
- Toggle disconnect switch
- Relay kits
- Duct temperature sensor
- Modulating hot water control valves
Resources
Brochure
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VariTrane™ Sales - 4 pageVAV-SLB004-EN2MB
Catalog
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Round Inlet/Round Outlet (VRRF)VAV-PRC016*-EN
Installation Operation Maintenance (IOMs)
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Round-In/Round-OutVAV-SVN09*-EN
Building Systems Upgrades
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HVAC System Retrofits
Not sure where to start? Trane’s experts can evaluate whether a retrofit or replacement will provide the better ROI. We are here to help!