Honeywell Design and Application User Manual

Section 11 - W7220 JADE™ Economizer Module
111 Honeywell Economizers 63-8594-02
ROOF TOP UNIT
Y1O
Y2O
Y1I
Y2I
OCC
24 VAC
E-GND
Y1
G
W2
W1
Y2
O/B
OCC
W7220 ECONOMIZER CONTROLLER MODULE
THERMOSTAT
CO2
SENSOR
2-10 VDC
(OPTIONAL)
MAT
MAT
OAT
OAT
C R
R(+)
C(-)
M32650D
IAQ (2-10V)
IAQ COM
IAQ 24V
ACT (2-10V)
ACT COM
ACT 24V
3
1
2
OAT TEMP
SENSOR
20K NTC
MS3103J
OR MS3105J
1
1
MA TEMP
SENSOR
20K NTC
S-BUS
4
5
S-BUS
AUX1-0
AUX2-I
NOTE THAT THE 20K NTC SENSOR CAN BE MOUNTED IN THE OAT TERMINALS ONLY IN THIS CONFIGURATION.
WHEN USING A HEAT PUMP THERMOSTAT, THERMOSTAT TERMINALS MAY DIFFER: W1 MAY BE LABELED O
OR B AND W2 MAY BE LABELED W.
WHEN USING A HEAT PUMP WITH DEFROST FEEDBACK, ADD AN ISOLATION RELAY BETWEEN O AND C.
2
2
3
3
1K1
1K1
Fig. 7. Stand-alone dry-bulb Economizer configuration with Honeywell MS3103J or
MS3105J communicating actuators.
Economizer with Sylk Bus Sensors
A standalone economizer with Sylk Bus
sensors has additional sensors attached using
Sylk Bus communications (see Fig. 8, Fig. 9
and Fig. 10). The Sylk Bus reduces wiring
requirements while providing additional
functionality.

Honeywell Design and Application Specifications

General

Brand	Honeywell
Model	Design and Application
Category	Controller
Language	English