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FXVMA
Installation Instructions
LP-FXVMAxx-x
Applications
This document covers the mounting and wiring of the
FXVMA Variable Air Volume (VAV) Box Controller. For
more information about programming, configuring,
downloading, and/or commissioning the FXVMA, refer
to the FXVMA VAV Box Controller Technical Bulletin
(LIT-12011249).
The FXVMA is a VAV box controller in the Facility
Explorer line of products. The FXVMA is an integrated
assembly consisting of a high performance digital
controller, fast response actuator, and an accurate
Differential Pressure Transducer (DPT), all of which are
pre-wired together and integrated inside a single
enclosure.
The FXVMA is fully programmable using FX Builder, or
you can select and configure a pre-defined VAV box
control application using FX Builder Express.
Various software and accessories are available to
assist you during the commissioning of the FXVMA and
the VAV box. This includes FX CommPro, which has
computer-based downloading and commissioning
capabilities; and the Medium User Interface, which has
an easy-to-use hardware interface.
The FXVMA includes an embedded communication
capability that enables the FXVMA to integrate into an
N2 or BACnet® Master-Slave/Token-Passing (MS/TP)
(depending on model) network of a building automation
system.
Figure 1: FXVMA VAV Box Controller
Part No. 24-10143-47, Rev. D
North American Emissions Compliance
United States
This equipment has been tested and found to
comply with the limits for a Class A digital device
pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection
against harmful interference when this equipment is
operated in a commercial environment. This
equipment generates, uses, and can radiate radio
frequency energy and, if not installed and used in
accordance with the instruction manual, may cause
harmful interference to radio communications.
Operation of this equipment in a residential area is
likely to cause harmful interference, in which case
the user will be required to correct the interference
at his/her own expense.
Canada
This Class (A) digital apparatus meets all the
requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la Classe (A) respecte
toutes les exigences du Règlement sur le matériel
brouilleur du Canada.
FXVMA Installation Instructions
Issued April 16, 2009
Supersedes February 4, 2008
1
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Related Manuals for Johnson Controls LP-FXVMA Series
Summary of Contents for Johnson Controls LP-FXVMA Series
- Page 1 FXVMA Installation Instructions Part No. 24-10143-47, Rev. D LP-FXVMAxx-x Issued April 16, 2009 Supersedes February 4, 2008 Applications North American Emissions Compliance This document covers the mounting and wiring of the United States FXVMA Variable Air Volume (VAV) Box Controller. For more information about programming, configuring, This equipment has been tested and found to downloading, and/or commissioning the FXVMA, refer...
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Page 2: Installation
Installation 2. Make sure the FXVMA base is parallel to the VAV box (perpendicular to the damper shaft). If needed, Observe these guidelines when installing the FXVMA: use a spacer to offset tipping of the FXVMA caused • Transport the FXVMA in its original container to by the shaft bushings. - Page 3 9. For 90° boxes, rotate the coupler in the direction 4. Connect power wiring to the FXVMA. that the damper closes with the mechanical limit. The channel assignments for the inputs and outputs The open end-stop is automatically set for 90° vary according to the control application configuration.
- Page 4 Active Sensor Connection Use Figure 7, Figure 8, and Figure 9 to make the appropriate wiring connections to the Binary Outputs. The UI accepts a 0-10 VDC input signal from an active Refer to the configured FXVMA application sensor. The UI has an internal 75k ohm pulldown. The documentation for actual Binary Outputs used.
- Page 5 Configurable Output Wiring Details On/Off Device Connection The FXVMA features two field-connectable outputs that The configurable outputs are connected to on/off you can configure to control on/off devices (such as devices as shown in Figure 10. The FXVMA provides fans, 2-position valves, or heating elements), 24 VAC, 0.5 A triacs to operate on/off devices.
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Page 6: Setup And Adjustments
Network Room Module (NRM) Wiring Details Use Figure 14 to make the BACnet MS/TP bus connections to the FXVMA. The NRM connects to the Remote Display Bus of the FXVMA at the 4-terminal connection marked SENSOR. FXVMA You can connect the NRM up to 30.5 m (100 ft) from SHLD the FXVMA. -
Page 7: Setting The End-Of-Line (Eol) Switch
Setting the BACnet MS/TP MAC Address Troubleshooting The BACnet MS/TP MAC address switch sets a unique Use Table 5 to troubleshoot the FXVMA. address for the FXVMA on the BACnet MS/TP bus. Table 5: FXVMA Light-Emitting Diode (LED) Set the BACnet MS/TP MAC address using the DIP Codes switches on the face of the FXVMA. -
Page 8: Technical Specifications
The performance specifications are nominal and conform to acceptable industry standard. For application at conditions beyond these specifications, consult the local Johnson Controls® office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products.
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