Johnson Controls VFD66 Series Product/Technical Bulletin
Condenser fan speed controls
Hide thumbs
Also See for VFD66 Series:
- Quick start commissioning manual (3 pages) ,
- User manual (40 pages) ,
- Product/technical bulletin (18 pages)
Table of Contents
Advertisement
VFD66 Series Condenser Fan Speed Controls
The VFD66 Series Condenser Fan Speed Controls
regulate the speed of three-phase condenser fan
motors in refrigeration and Heating, Ventilating, and
Air Conditioning (HVAC) systems by varying the
frequency and voltage of the power supplied to the
motor.
The VFD66 control accepts an input signal from the
P35 Pressure Transducer, P499 Electronic Pressure
Transducer, System 350
device that provides a 0-5 VDC or 0-10 VDC analog
output signal.
The application-specific design of the VFD66 control
provides a simple interface, which makes the control
easy to understand and operate.
Features and Benefits
Isolated Input Circuitry
Simultaneous Acceptance
of Two Similar Inputs
Compact Design
Three-Phase, 208/230, or
400/460 VAC Models
Few End-User Settings
© 2010 Johnson Controls, Inc.
Code No. LIT-125467
Part No. 24-7664-1555, Rev. F
™
controls, or any other
Product/Technical Bulletin
Figure 1: VFD66 Condenser Fan Speed Control
with NEMA 1 Enclosure
Permits application with 0-5 VDC or 0-10 VDC
controllers, sensors, transducers, and
Johnson Controls System 350 controls
Allows use on dual refrigeration circuits
cooled by a single fan
Provides installation ease and flexibility
Handle three-phase motors ranging up to
10.6 amperes at 208/230 VAC or 5.5 amperes
at 400/460 VAC
Provide fast and easy installation and setup
VFD66
Issue Date
January 5, 2010
www.johnsoncontrols.com
1
Advertisement
Table of Contents
Related Manuals for Johnson Controls VFD66 Series
Summary of Contents for Johnson Controls VFD66 Series
- Page 1 VFD66 Issue Date January 5, 2010 VFD66 Series Condenser Fan Speed Controls The VFD66 Series Condenser Fan Speed Controls regulate the speed of three-phase condenser fan motors in refrigeration and Heating, Ventilating, and Air Conditioning (HVAC) systems by varying the frequency and voltage of the power supplied to the motor.
- Page 2 Heat 7-1/2 (117) Sink (190) 7-1/4 (184) 3 conduit openings 1/4-in. (6 mm) 1/2-in. trade size mounting screws, 7/8-in. (22 mm) actual size 4 places Figure 2: VFD66 NEMA 1 Enclosure Dimensions VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
- Page 3 Bracket system malfunction. Ground Potentiometers Connection Terminals Route wiring from input devices through this conduit entry hole. Figure 3: Jumper Block, Terminal Block, and Potentiometer Locations VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
- Page 4 Use Terminal 3 to connect an optional second input device to the VFD66 (Figure 5). Black Second P499 Transducer (Common) White (Optional) (Second Output Signal) Figure 5: Wiring P499 Transducers to VFD66 Terminal Block 3 (TB3) VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
- Page 5 600 volts. (CE mark): Maximum terminal tightening torque for all VFD66 • controls electrical terminals is 5 lb·in (0.565 N·m). 72/23/EEC (Low Voltage Directive) • 89/336/EEC (EMC Directive) VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
-
Page 6: Setup And Adjustments
Control settings are established by positioning six jumpers and adjusting two potentiometers. Factory default settings have all the jumpers in the installed position and the potentiometers set fully clockwise. (See Table 4, Figure 3 and Figure 9.) VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin... - Page 7 See Figure 10 for temperature de-rating for Temperature De-Rated 208/230 VAC models. See Figure 11 for temperature De-Rated Altitude Maximum de-rating for 400/460 VAC models. Maximum Multiplier = Output Output Amperes Amperes VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
- Page 8 Input type varies with device. Transducer may provide 0-5 VDC or 0-10 VDC signal. A 0-10 VDC transducer must be separately powered. Note that a non-ratiometric transducer generates more error than ratiometric transducers. VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
- Page 9 P2 determines whether the motor idles at minimum speed or shuts off at minimum speed. P2 must be set at full CCW or full CW position; intermediate settings have no effect. VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
- Page 10 Figure 13: Electronic Pressure Transducer Input P1 adjusts the pressure setpoint and establishes the Mode, 0-500 psi P499 Transducer pressure value at which the VFD66 controls drive the fan motor at maximum speed. VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
-
Page 11: Operation
When the ALARM LED flashes, the VFD66 control has Figure 16.) shut down the motor. The number of times the ALARM LED flashes indicates the cause of the fault. (See Troubleshooting.) POWER ALARM (Green) (Red) Figure 14: LED Display VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin... - Page 12 The number of times the ALARM LED If the supply voltage drops to 276 VAC flashes indicates the cause of the fault. See Table 12. (60% of 460 VAC), the VFD66 control can only provide VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
- Page 13 Reapply power. If problem Modulation microprocessor persists, replace VFD66 control. Generator operation. Fault Logic Fault Internal circuitry fault Internal fault Shut off power. Wait 5 minutes. Reapply power. If problem persists, replace VFD66 control. VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...
-
Page 14: Selecting A Motor
FLA. Required Motor Specifications 3. Adjust the VFD66 control’s current rating for Motors used with the VFD66 Series Controls must: temperature and altitude. See De-Rating the VFD66 Control for High Temperatures and High have variable torque operation Altitudes. - Page 15 For applications that require 0-10 VDC pressure transducers, refer to the P499 Series Electronic Pressure Transducers Product/Technical Bulletin (LIT-12011190) for more information on available 0-10 VDC models. Table 13: Pressure Transducers, Temperature Controls, and Other Accessories for VFD66 Series Controls Product Code Description Accessory Information Number...
-
Page 16: Repairs And Replacement
NEMA 1 Enclosure with Fan Repairs and Replacement Field repairs of the VFD66 control should not be made. For a replacement VFD66 control or input devices, contact your local Johnson Controls/PENN distributor. VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin... -
Page 17: Technical Specifications
507 E. Michigan Street, Milwaukee, WI 53202 Metasys® and Johnson Controls® are registered trademarks of Johnson Controls, Inc. All other marks herein are the marks of their respective owners. © 2010 Johnson Controls, Inc. VFD66 Series Condenser Fan Speed Controls Product/Technical Bulletin...