Technical Bulletin—TC-9100 Universal Controller
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Introduction
The TC-9100 Universal microprocessor-based DDC Controller provides
room temperature control and is designed for use with HVAC terminal
units having a heating and/or cooling function, with and without fan-
assisted air circulation or flow control by damper positioning.
Applications include fan coil units, hot-water radiators and cold ceilings,
variable air volume (VAV) units, and small air handling units.
The controller is fully configurable to provide a wide range of control
strategies using its four analog inputs to measure temperatures and flow
rates, its two digital inputs to detect environmental conditions such as
space occupancy, window opening or fan failure, and its seven analog or
binary outputs to control heating, cooling and air flow control devices. A
RS-1100 or TM-9180
series room command module provides set point
adjust capabilities and a temporary occupancy override of the
COMFORT, STANDBY and NIGHT operating modes of the controller.
The TM-9180 can also provide local time scheduling of the operating
mode when the controller is not overridden by a supervisory system. The
controller has a low limit temperature protection feature and automatic set
point compensation for the winter and summer seasons.
When connected to a communications bus, the controller provides
operating data to a supervisory system, which also allows a user to
modify control set points and to set the operating mode of the controller
either manually or according to a time schedule.
The TC-9100 controller is part of the System 91 series of controllers and
is fully compatible with the Metasys network system. The compact size
of the controller makes it easy to mount within the terminal unit housing,
above a false ceiling or within a small control cabinet.
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Figure 1: TC-9100 Universal
Controller
Figure 2:
RS-1160
Room
Command Module