6 CNT-SVX08F-EN
Overview
This guide provides installation and configuration information for the Tracer MP501 controller, as
well as a description of its operations. The overview includes a product description, specifications,
and descriptions of additional components needed in some MP501 applications.
Product Description
The MP501 is a configurable, multi-purpose controller used to provide direct-digital control for
heating, ventilation, and air conditioning (HVAC) equipment. The controller can operate as a stand-
alone device or as part of a building automation system (BAS). Communication between the
controller and a BAS occurs via a LonTalk® communication link.
The MP501 provides a single control loop with th
e following
output types: 2-stage, tri-state
modulating, and 0–10 Vdc analog. The controller can be configured in two possible modes:
• Space Comfort Controller (SCC)
• Generic
In SCC mode, the MP501 conforms to the LonMark® Space Comfort Control profile and controls
sp
ace temperature to an active setpoint.
SCC mode supports the following applications:
• Heating control loop
• Cooling control loop
• Two-pipe heat/cool automatic cha
ng
eover using a communicated supply water temperature
value
In generic mode, the MP501 provides control flexibi
lity
in a variety of applications that do not
necessarily follow a LonMark profile. The control loop accepts inputs of the following types:
temperature, pressure, flow, percent, or parts per million (ppm).
Generic mode supports many applications including:
• Fan speed control based on duct static pressure
• Pump speed control based on water differential pressure or flow
• Humidifier control based on space or duct relative humidity
Storage Environment
If a MP501 is to be stored for a substantial amount of time, store it in an indoor environment that
meets the following requirements:
• Temperature: –4° to 160°F (–20° to 70°C)
• Relative humidity: 10–90%, non-condensing
Dimensions
Plastic Cover Model
• Height: 5.375 in. (137 mm)
• Width: 6.875 in. (175 mm)
• Depth: 2 in. (51 mm)
Metal Cover Model
• Height: 9.0 in (25 mm)
• Width: 10.37in. (263 mm)
• Depth: 2.25 in. (58 mm)