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 The
VT7200 PI thermostat family is specifically designed for zoning
applications.
Typical applications include local hydronic reheat valve
control and pressure dependent VAV with or without
local reheat. The product features a backlit LCD display
with dedicated function menu keys for simple operation.
Accurate temperature control is achieved due to the
product’s PI proportional control algorithm, which
virtually eliminates temperature offset associated with
traditional, differential-based thermostats. Models are
available for 3 point floating and analog 0 to 10 Vdc
control. In addition remote room sensing is available.
They all contain an SPST auxiliary switch that can be
used to control lighting or auxiliary reheat. All devices
are also available with Echelon or BACnet MS-TP network adapter.
The VT7300 PI thermostat
family is specifically designed
for fan coil control. The product features a backlit LCD
display with dedicated function menu buttons for simple
operation. Accurate temperature control is achieved due
to the product’s PI proportional control algorithm, which
virtually eliminates temperature offset associated with traditional,
differential-based thermostats.
Models are available
for On/Off, 3 point floating and analog 0 to 10 Vdc control. All
models contain can control three, two or single fan speed. 3 additional
inputs are also provided for various functions.
All models feature
configurable System and Fan button functions to meet all possible
applications. They all contain an SPST auxiliary switch that can
be used to control lighting or auxiliary reheat.
The RZ VT7600 PI thermostat family
is specifically designed for single stage and multi-stage control
of heating/ cooling equipment such as rooftop and self-contained
units. The product features an intuitive, menu-driven, backlit
LCD display which walks users through the programming steps, making
the process extremely simple. Accurate
temperature control is achieved due to the product’s PI
time proportional control algorithm, which virtually eliminates
temperature offset associated with traditional, differential-
based thermostats.
All models contain two digital inputs,
which can be set by the user to monitor filter status, activate
a remote temporary occupancy switch, and/or used as a general
purpose service indicator. In addition, depending on the model,
up to three remote sensor inputs are available.
All models contain a SPST auxiliary
switch, which can be used to control lighting or disable the economizer
function and a discharge air sensor input. For more advanced applications,
an economizer control logic has been integrated onto the thermostat
for use with proportional damper economizer actuators. |
