Honeywell Design and Application User Manual

Section 11 - W7220 JADE™ Economizer Module
63-8594-02 Honeywell Economizers 114
C7400S
OUTSIDE AIR
TEMP/HUMIDITY (ENTHALPY)
SYLKBUS SENSOR
C7400S
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
C(-)
M32653D
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.
1
1
THE S-BUS COMPONENTS MAY BE DAISY CHAINED TO ANOTHER S-BUS
COMPONENT.
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
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
3
1
2
MS3103J
OR MS3105J
S-BUS
4
5
S-BUS
2
R(+)
24 VAC
3
3
4
1K1
1K1
4
Fig. 10. Economizer with Sylk Bus sensors for enthalpy configuration with a Honeywell
MS3103J or MS3105J communicating actuators.
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.
Fig. 11. Economizer LCD and Keypad
Layout.
M32274A
2 LINE
LCD
SELECT (ENTER)
BUTTON
SCROLL
(UP/DOWN)
BUTTONS
MENU UP
(EXIT)
BUTTON

Honeywell Design and Application Specifications

General

Brand	Honeywell
Model	Design and Application
Category	Controller
Language	English