Features Of The Vtt Compressor; Configurations Of The Vtt Compressor Models; Compressor Module - Danfoss VTT Series Applications And Installation Manual

Features of the VTT
Compressor
Configurations of the VTT
Compressor Models
Figure 1
Major Components

Compressor Module

Item
Location Installed on Chiller
Compressor Module
Figure 2
Main Fluid Path with
IntraFlow (IFV)
Overview of the VTT Compressor
• Oil free, magnetic bearing, variable speed,
two-stage centrifugal compressors with
economizer option
• Nominal capacity ranges from 200 to 350 tons
• Voltage applications between 380 and 575 Volts
The VTT compressor, motor and power
assemblies are modular in design.
Drive Module
Installed on Chiller
This section provides a brief overview of the
Compressor Module.
The Compressor Module is comprised of
two portions:
• Aerodynamics - the aerodynamics portion
manages the compression of refrigerant
through the compressor from suction
to discharge comprising centrifugal and
IntraFlow technologies.
TM
• Water-cooled or equivalent evaporative cooled
chiller applications
• ETL certified
• HFC-134a refrigerant
CIM Board
Installed in OEM's Control
Panel
• Motor - The motor portion contains a direct-
drive, high-efficiency, permanent-magnet
synchronous motor powered by pulse-width-
modulating (PWM) voltage supply. The high-
speed variable-frequency operation that affords
high-speed efficiency, compactness and soft
start capability. Motor cooling is by liquid
refrigerant injection.
M-AI-VT-001-EN Rev.C.1
DC-DC Board
Installed in OEM's Electrical
Panel
Page 13 of 73