User Interface - Honeywell Design and Application Technical Reference Manual

Section 11 - W7220 JADE™ Economizer Module
MA TEMP
SENSOR
20K NTC
MAT
MAT
S-BUS
S-BUS
IAQ (2-10V)
CO2
SENSOR
IAQ COM
2-10 VDC
IAQ 24V
(OPTIONAL)
ACT (2-10V)
ACT COM
ACT 24V
1
2
3 S-BUS
4 S-BUS
5
1
Fig. 10. Economizer with Sylk Bus sensors for enthalpy configuration with a Honeywell

User Interface

The user interface consists of an LCD display
and a 4-button keypad on the front of the
Economizer module. The LCD is a 16
character by 2 line dot matrix display.
Keypad
The four navigation buttons illustrated in
Fig. 11 are used to scroll through the menus
and menu items, select menu items, and to
change parameter and configuration settings.
63-8594-02 Honeywell Economizers
W7220 ECONOMIZER CONTROLLER MODULE
2
MS3103J
OR MS3105J
C7400S
OUTSIDE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
C7400S
RETURN AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
MS3103J or MS3105J communicating actuators.
24 VAC
1 IN THIS CONFIGURATION, 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 THE S-BUS COMPONENTS MAY BE DAISY CHAINED TO ANOTHER S-BUS
COMPONENT.
WHEN USING A HEAT PUMP THERMOSTAT, THERMOSTAT TERMINALS
3
MAY DIFFER: W1 MAY BE LABELED O OR B AND W2 MAY BE LABELED W.
4 WHEN USING A HEAT PUMP WITH DEFROST FEEDBACK, ADD AN
ISOLATION RELAY BETWEEN O AND C.
MENU UP
(EXIT)
BUTTON
Fig. 11. Economizer LCD and Keypad
114
ROOF TOP UNIT
O/B
Y1 W1
OCC Y2
4
1K1
AUX2-I
OCC
E-GND
AUX1-0
Y2I
Y2O
Y1I
Y1O
1K1
C R
R(+)
C(-)
3
THERMOSTAT
SELECT (ENTER)
BUTTON
SCROLL
(UP/DOWN)
BUTTONS
Layout.
G
W2
M32653D
2 LINE
LCD
M32274A