Honeywell Design and Application User Manual

Section 12 - Sensors for Economizer Modules
63-8594-02 Honeywell Economizers 164
JADE
TM
Economizer (W7220) Sensors
The JADE
TM
economizer does not use the
same sensors as the legacy economizer
controllers. The JADE
TM
economizer controller
uses new digital sensors for control. The
Mixed Air Temperature and Outdoor Air
temperature only sensors are 20k negative
temperature coefficient, or NTC, sensors
(C7250).
The Outdoor Air, Return Air and optional
Discharge Air sensors communicate with the
JADE
TM
on a two-wire communication bus, or
Sylkbus. (C7400S). The JADE
TM
sensors can
be can either be wired using a two-pin Molex
connector or a two-pin side connector. Each
sensor unit pack includes a two-pin side
connector in the packaging.
All Outdoor Air, Return Air and Discharge Air
sensors are the same part number. During
installation, the sensor is set for the
appropriate type using the three-position DIP
switch located on the sensor.
Once installed, a sensor can be changed to a
different application by simply changing the
DIP switch setting. The brown or orange color
of the label matches the wiring terminals on
the JADE
TM
economizer controller.
The JADE
TM
recognizes the sensors and
configures the system to the valid sensors
installed in the system. If two sensors are set
as OA the JADE
TM
will give an error message
which will not clear until the sensor has been
reset.
DIP
SWITCH
LABEL
M32271B
SYLK BUS
TERMINALS
(1 AND 2)
DIP
SWITCHES
(3)
SYLK BUS
2 PIN SIDE
CONNECTOR
C7250A 20k temperature
sensors
C7400S Sylkbus sensors

Honeywell Design and Application Specifications

General

Brand	Honeywell
Model	Design and Application
Category	Controller
Language	English