Johnson Controls FMS-1655 Series, Installation Manual, Page: 10 / 70

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Due to continuous improvement, JCI reserves the right to change product specifications without notice.
The JCI FMS-1655 Room Pressure Controller
is an ultra-sensitive instrument used to
monitor and/or control air pressure in hospital
rooms, labs, and clean rooms. This unit
is capable of measuring and displaying
differential air pressures as low as 0.0001
“WC or 0.0249 Pa. The FMS-1655 may be
used to control differential pressures down to
0.0040 ”WC or 1 Pa.
Key features of the FMS-1655 include:
• Full-color touchscreen display with
programmable display options and
adjustable backlight
• Intuitive user interface simplifies setup
and configuration of unit
• Display background changes color to
indicate room status at a glance
• Patented Safety Halo™ with color-coded
180° edge lighting
• Automated clean cycle with fully
programmable duration for quick
turnaround of patient or isolation room
• Audible and visual alarm annunciation
• Internal or remote sensor options
available with up to four sensors total
(one internal, three remotes OR four
remotes)
• Auxiliary universal analog inputs for use
with optional sensors
• Four independent PID control loops for
controlling damper actuators, speed
drives, hot water valves, humidifiers, etc.
• Digital input used to monitor the door
switch of the monitored room
• Relay outputs used for transmitting alarm
condition to remote location
• Dedicated thermistor inputs for
temperature control applications
• Multi-level password protection of
touchscreen user interface
• Zero calibration feature allows in-field
recalibration of zero pressure reading
• Multi-protocol native (BACnet® or
Metasys® N2) for easy integration with
any BMS
• Manual override of analog and relay
outputs assist with test and balance
procedures
• Comprehensive real-time view
• Built-in diagnostics tool
• Easy-to-install backplane/backplate
assembly facilitates permanent
termination of all wiring
The FMS-1655 features enhanced graphics
the patented Safety Halo.™ This simple yet
elegant feature significantly enhances the
alarm status indication of the FMS-1655 by
providing full 180-degree visibility. The Safety
Halo™ is shipped from the factory enabled at
full brightness, but may be dimmed or even
disabled completely from the display setup
menus.
The FMS-1655 is equipped with a 3.2”
diagonal full-color touchscreen display
in portrait orientation (240 x 320). The
password-protected menu tree is very intuitive
and simplifies the setup and configuration of
the unit. The menus incorporate touch-based
interfaces such as sliders, radio buttons, and
dialog popups to facilitate the ease-of-use of
the FMS-1655.
The display implements bright graphical color
changes to indicate the three different alarm
status indications of the monitored isolation
room. These graphical backgrounds indicate
“ Normal ” when the differential pressure is
within defined limits, “ Warning ” when the
differential pressure is approaching an
out-of-limits condition, and “ Alarm ” when the
differential pressure is outside the defined
acceptable and safe limits.
The differential pressure ranges for these
conditions are easily configured by the user
for the specific installation when necessary,
either directly from the touchscreen display or
over the network from the BMS. The graphical
background changes provide an at-a-glance
overview of the monitored isolation room
differential pressure conditions.
Alarm conditions may be defined by the
user, in terms of desired differential pressure
settings for the room being monitored.
When an alarm condition occurs, it may be
annunciated in four user-definable ways:
1) on the display, 2) with an audible alarm,
and 3) transmitted via contacts to a remote
monitoring station and 4) over the BMS
network. The alarm will automatically reset
when the unit has sensed that the room
differential pressure has returned to proper
limits. The attendant may easily mute the
audible alarm by touching the alarm audible
button on the bottom of the display.
For many applications, it is important to have
other variables such as anteroom differential
pressure or relative humidity displayed along
with the isolation room differential pressure.
The FMS-1655 provides for this by means of
three additional universal analog inputs, which
may be configured for either current loop
operation or voltage input operation. Each
input may be scaled as needed to display
correct values, and may have an engineering
units selection associated. The configuration
of each analog input is field selectable
through the use of miniature dipswitches on
the controller unit.
GENERAL
Overview