Jade Range W7220 - Manual (Page 7)

JADE ™ ECONOMIZER MODULE
7 62-0331—11
Fig. 5. Economizer with Sylk Bus sensors for enthalpy configuration with a Honeywell MS7505 or MS7503 Direct
Coupled Actuator.
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
C R
R(+)
C(-)
M32566D
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, 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
1
2
MS7503 OR MS7505
3
S-BUS
S-BUS
MAT
MAT
CO2
SENSOR
2-10 VDC
(OPTIONAL)
IAQ (2-10V)
IAQ COM
IAQ 24V
ACT (2-10V)
ACT COM
ACT 24V
MA TEMP
SENSOR
20K NTC
AUX1-0
AUX2-I
2
3
4
3
4
1K1
1K1
24 VAC