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FMS1655L-S-0-1 | Johnson Controls | Pressure

ROOM PRESSURE CONTROLLER, ++/-0.50%, ++/-0.25" WC,

Manufacturer:Johnson Controls



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product family specifications

Pressure, Alarm, Display Range

±0.2500″ wc


±0.5% FS

Air Flow Sensor Type

Digital differential pressure

Control Resolution

±0.0010″ wc

Control Capability

Up to 4 independent spaces

Analog Inputs

4 universal, 4-20 mA, 0 to 5/10 VDC

2 thermistor inputs, NTC Type 2 or 3, 10KΩ at 25℃

Signal Output

4 universal, 4-20 mA, 0 to 5/10 VDC

Digital Inputs

4 active-high or active-low, 0 to 5 VDC or 0 to 24 VDC

Relay Outputs

4 sets of N.O. or N.C. contacts, 1 A @ 24 VDC


BACnet® MS/TP, Metasys® N2 open

Operating Temperature

32° to 125℉ (0° to 55℃)

Operating Humidity

10 to 95% RH (Non-condensing)

Power Requirements

24 VAC ±10%, 30VA

Password Protection

Up to 10 user passwords with 4 access levels


18-bit (262K) color TFT, 3.2″ diagonal, resistive touchscreen, 2500 cd/m2

Alarm Indication

Safety Halo™ 180° visual indication, Industry standard status colors with action icons

Alarm Silence

Touchscreen, auto-reset


Flush, thin, or surface

Exterior Dimensions

Stainless Steel Flush Mount Housing

5.6″W x 8.5″H x 1.9″D, (14.22 x 21.59 x 4.8. cm)

Stainless Steel Thin Mount Housing

5.6″W x 8.5″H x 0.5″D, (14.22 x 21.59 x 1.3 cm)

Plastic Surface Mount Housing

3″W x 5″H x 0.75″D, (7.62 x 12.7 x 1.9 cm)


6 to 14lbs


BLT Listing, ETL Listing, UL 61010-1, FCC Part 15, ICES-003


2 years

product family features

  • BACnet® MS/TP and Metasys® N2 native
  • Full-color, user-friendly touchscreen
  • Available in surface or flush mount
  • Password protection with four access levels
  • Real-time air changes per hour
  • Ability to simultaneously report room status, pressure, integrated thermostat, time, date, and room conditions

more information & related documents

Family Description

Triatek's FMS-1655 Room Pressure Controller features the innovative Safety Halo™ edge lighting that enables users to instantly monitor critical environments down long hospital or laboratory hallways. The FMS-1655 also features a user-friendly, modern touch screen that simultaneously displays room pressure, humidity, temperature, air changes, alarm status, time, and date. Users can control up to four different spaces with a single unit. It is available in surface mount, or the sleek stainless-steel flush mount for busy hallways.

Kele Description

ROOM PRESSURE CONTROLLER, ++/-0.50%, ++/-0.25" WC,


Johnson Controls

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