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Ancillary Functions
The SMT-131 has a number of additional capabilities such as communications with Building
Automation systems via its Modbus communications port. The SMT-131 will automatically control
temperature set points based on occupancy of the room when a suitable door switch and
movement sensor is fitted. The SMT-131 can even automatically shut down the air conditioning
system if balcony doors or windows are left open when the optional door / window switch are
fitted.
When you wish indication of the room status and an integrated doorbell from the hall way
outside the room, the SMT-131 can be fitted with the optional “HOT-243” hall panel.
Complete System Overview
The SMT-131 is the hub of a
compressive room comfort and
energy control system. As shown in
the picture the SMT-131 accepts
door, window and PIR contact
inputs to automatically control
temperature set points. The HOT
243 wall controller mounted in the
hallway outside of the room
provides feedback of the guests
needs
to
housekeeping
plus
provides a convenient button to
activate the SMT-131 internal door
bell.
Regardless of the need to control conferential HVAC systems, 2 or 4 pipe fan coils with
modulating valves the SMT-131 has the necessary outputs to achieve your control needs.
Occupancy Detection
The SMT-131 has sophisticated logic
that when connected to your choice
of movement sensors, door and
window switches will automatically
control the set point and mode of
the SMT-131.
Using part or all of the functions
described below are completely
optional. The SMT-131 will function
perfectly as a HVAC controller without the door, window or occupancy detection logic enabled.
DO NOT APPLY EXTERNAL VOLTAGES TO THESE INPUTS
Summary of Contents for SMT - 131
Page 1: ...SMT 131 Manual Ver 2 1...
