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