Setra FLEX Operating Instructions
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Phone: (800) 257-3872 | Fax: (978) 264-0292 | www.setra.com
1.0 Introduction
The Setra FLEX™ provides a flexible room environmental
control and monitoring solution in a simple-to-use
package. An attractive flush-mount faceplate is
complemented by an intuitive graphical display to meet
any architectural requirement. The unit supports 3 rooms,
monitoring up to 6 parameters for each room. An optional
differential pressure sensor can be either factory-installed
in the unit or ordered separately and installed above the
ceiling. Integration with building automation systems is
made easy through either BACnet/IP or BACnet MS/TP
network protocols.
The modular design permits the unit to t in a variety
of wall thicknesses, from as little as 50 mm (1.97”) to
88.9 mm (3.5”). Either on-board or external sensors are
high accuracy 0.25% of full-scale differential pressure
transducers.
FLEXsoftwarecomesintwocongurations;monitor-only
(RM = room monitor), or monitor and control (RC = room
controller). Model RM will not have any control features
enabled for use. Model RC will have both monitor and
control features enabled, offering either Proportional-
Integral (PI) loop control or network command of VAV
boxes, venturi valves, hydronic reheat valves, or other
equipment that responds to voltage or milliamp signals or
network commands, respectively.
FLEX is fully-congurable on-site via simple menu
commands via the touch-screen, and requires no
programming. FLEX can also be congured over the
BACnet network once basic network communications
is established. A third option for conguration is to use
theUSBcloningfeature,whichpermitstheconguration
from a single master unit to be used as a template for all
subsequent units. Two levels of password protection and
a faceplate lock provide security from unauthorized use or
tampering.
1.1 Intended Use
FLEX is designed to monitor and control critical
environments, such as hospital operating rooms, isolation
rooms, compounding pharmacies, and other spaces that
require room pressure control and directional airflow.
Additional critical environments include laboratories,
vivariums, pharmaceutical manufacturing, clean rooms,
or any enclosed space where managed room pressure
(positive or negative) is desired. Up to 3 rooms are
supported by 1 FLEX unit.
FLEX RM will monitor and provide both visual and audible
alarms on any of 6 congured room parameters, such
as pressure, temperature, relative humidity, air changes
per hour (ACH), plus 2 user-dened parameters. FLEX
RC contains all the functionality of FLEX RM, but adds PI
control or network control of HVAC equipment.
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