Honeywell Design and Application User Manual

Section 11 - W7220 JADE™ Economizer Module
63-8594-02 Honeywell Economizers 112
S-BUS
S-BUS
OUTSIDE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
RETURN AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
ROOF TOP UNIT
Y1O
Y2O
Y1I
Y2I
OCC
E-GND
Y1
G
W2
W1
Y2
O/B
OCC
W7220 ECONOMIZER CONTROLLER MODULE
THERMOSTAT
MA
MA
C R
R(+)
C(-)
M32565C
IN THIS CONFIGURATION, AN OPTIONAL DISCHARGE AIR TEMP/HUMIDITY
(ENTHALPY) SYLKBUS SENSOR CAN BE ADDED FOR ADVANCED CONTROL
AS SHOWN IN THE LOWER LEFT OF THIS FIGURE.
DO NOT USE THE C7250 20K NTC SENSOR WITH THE OA TERMINAL IN THIS
CONFIGURATION.
WHEN USING A HEAT PUMP THERMOSTAT OR A PROGRAMMABLE 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.
1
4
1
2
CO2
SENSOR
2-10 VDC
(OPTIONAL)
IAQ (2-10V)
IAQ COM
IAQ 24V
ACT (2-10V)
ACT COM
ACT 24V
+
-
TR1
TR
IN
IN
M7215
MA TEMP
SENSOR
20K NTC
AUX1-0
AUX2-I
3
2
4
3
1K1
1K1
24 VAC
Fig. 8. Economizer with Sylk Bus sensors for enthalpy configuration with Honeywell
M7215 black motor.

Honeywell Design and Application Specifications

General

Brand	Honeywell
Model	Design and Application
Category	Controller
Language	English