Honeywell JADE W7220 Product Data page 9

Economizer with Sylk Bus Sensors
A standalone economizer with Sylk Bus sensors has additional
sensors attached using Sylk Bus communications (see Fig. 9
and Fig. 10 on page 10). The Sylk Bus reduces wiring
requirements while providing additional functionality.
MA TEMP
SENSOR
20K NTC
MA
MA
S-BUS
S-BUS
CO2 IAQ (2-10V)
SENSOR IAQ COM
IAQ 24V
2-10 VDC
(OPTIONAL)
ACT (2-10V)
ACT COM
ACT 24V
TR
TR1
+
IN
-
IN
1
Fig. 9. Economizer with Sylk Bus sensors for enthalpy configuration with Honeywell M7215 black motor.
1
W7220 ECONOMIZER CONTROLLER MODULE
2
M7215
(OPTIONAL COMMUNICATING DCA)
OUTSIDE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
DISCHARGE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
24 VAC
1 IN THIS CONFIGURATION, THE MAT IS REQUIRED AND AN OPTIONAL DISCHARGE
AIR TEM/HUMIDITY (ENTHALPY) SYLKBUS SENSOR CAN BE ADDED FOR
ADVANCED CONTROL AS SHOWN IN THE LOWER LEFT OF THIS FIGURE.
2
IF THE COMMUNICATING ACTUATOR IS USED, IT IS CONNECTED TO THE S-BUS
TERMINALS USING 2-WIRE SYLKBUS
9
JADE™ ECONOMIZER MODULE
ROOF TOP UNIT
O/B
Y1 W1
N Y2
SD-O/B
OCC
E-GND
AUX
Y2I
Y2O
Y1I
Y1O
C R
THERMOSTAT
WIRING.
G
W2
M28979
63-2700—01