Wiring Application Examples - Honeywell Design and Application Technical Reference Manual

This section describes the wiring
configurations for the JADE™ Economizer
system. The configurations are:
—"Stand-alone Economizer"
—"Economizer with Sylk Bus Sensors" on
page 116
MA TEMP
SENSOR
20K NTC
MA
MA
OAT
OA TEMP
1
OAT
SENSOR
20K NTC
CO2
IAQ (2-10V)
SENSOR
IAQ COM
2-10 VDC
IAQ 24V
(OPTIONAL)
ACT (2-10V)
ACT COM
ACT 24V
TR
TR1
M7215
IN +
-
IN
1 NOTE THAT THE C7250 20K NTC SENSOR CAN BE MOUNTED IN THE OAT ONLY IN THIS
WHEN USING A HEAT PUMP THERMOSTAT, THERMOSTAT TERMINALS MAY DIFFER: W1 MAY BE LABELED O
2
OR B AND W2 MAY BE LABELED W.
3 WHEN USING A HEAT PUMP WITH DEFROST FEEDBACK, ADD AN ISOLATION RELAY BETWEEN O AND C.
Fig. 4. Stand-alone dry bulb Economizer configuration with black motor M7215.

Wiring Application Examples

W7220 ECONOMIZER CONTROLLER MODULE
109
Section 11 - W7220 JADE™ Economizer Module
Stand-alone Economizer
The most basic configuration is the stand-
alone Economizer (see Fig. 4 and Fig. 6). A
stand-alone Economizer is directly wired to
sensors, actuators, thermostat, and
mechanical controls in the roof top unit. It does
not require Sylk Bus communications.
O/B
3
1K1
AUX2-I
OCC
E-GND
AUX1-0
Y2I
Y2O
Y1I
Y1O
C R
1K1
R(+)
24 VAC
C(-)
2
CONFIGURATION.
ROOF TOP UNIT
Y1 W1 G
W2
OCC Y2
THERMOSTAT
M28980C
Honeywell Economizers 63-8594-02