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The Serial-Stat™ Communicating thermostats allow full control and feedback of all functions and temperature readings on the thermostat. Besides their world class functionality, the Serial-Stat™ thermostat has a low profile, award winning design that blends well with any decor.
The Serial-Stat™ Communicating thermostats are available in several models in order to meet the needs of various types of HVAC equipment in the marketplace. All thermostats are manufactured in accordance with ISO9000 standards, with certification planned. The thermostats were designed with today's interiors in mind. These solid state electronic thermostats use state-of-the-art surface mount manufacturing technology incorporated into an extremely low profile, ultra-slim ABS plastic case. All versions include the following standard features: auto-changeover, selectable Celsius or Fahrenheit temperature display, fan selector switch, built-in short cycle protection, electronic calibration, Day/Night button for alternate setback setpoints, and user definable addressing from the front panel of the thermostat. No battery is required, and setpoint data and mode of operation is retained following power outages of any duration. All thermostat models can have multiple remote indoor sensors and one outdoor temperature sensors or one wet location sensor connected to them.
There are two columns of connectors on the thermostats. These connectors use the standard wiring and terminology for the HVAC industry. The feature connector, located on the left side of the thermostat backplate, has three main functions. They are the contact closure port, the remote sensor bus, and the communications bus.
The contact closure port provides the ability to remotely choose the day/night setpoint whenever CLK1 and CLK2 on the port are connected together. The most common use of this port is with an X-10 or security system relay.
The remote sensor bus allows the connection of one outdoor sensor and any combination of up to six remote indoor sensors and return air duct sensors.
The communications port allows for complete control and feedback
of all functions of the thermostat. There are four (4) models of the XCI
Serial-Stat™ communicating thermostat. All models offer full bi-directional
control any of the family of XCI Network Adapters through the RS-232 or
RS-485 interfaces.
The SST-1 single-stage thermostat will work for a large majority of the
HVAC units in the marketplace. The unit can control one (1) single stage
air conditioning compressor, and one (1) gas or electric heater.
SST-1 Data Sheet
SST-1 Installation Guide
The MST-1 multi-stage thermostat is designed for use with more complex
conventional HVAC systems. The unit can control one (1) multi-stage compressor,
and one (1) multi-stage gas or electric heater.
MST-1 Data Sheet
MST-1 Installation Guide
The HPT-1 heat pump thermostat is designed for use with the majority of
the heat-pump applications in the market. The unit can control one (1)
cooling stage and two (2) heating stages.
HPT-1 Data Sheet
HPT-1 Installation Guide
The HPT-2 heat pump thermostat is designed for use with the more complex
heat-pump applications in the market. The unit can control two (2) cooling
stages and three (3) heating stages.
HPT-2 Data Sheet
HPT-2 Installation Guide