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S-Bus Sensor Wiring
The labels on the sensors and controller are color coded for
ease of installation. Orange labeled sensors can only be wired
to orange terminals on the controller. Brown labeled sensors
can only be wired to S-bus (brown) terminals. Use Fig. 46 and
Table 9 to locate the wiring terminals for each S-Bus sensor.
Use Fig. 46 and Table 9 to locate the wiring terminals for
each enthalpy control sensor.
S-BUS
TERMINALS
(1 AND 2)
Fig. 46 — S-Bus Sensor DIP Switches
Table 9 — HH57AC081 Sensor Wiring Terminations
TERMINAL
NUMBER
LABEL
1
S-BUS
2
S-BUS
Use Fig. 46 and Table 10 to set the DIP switches for the de-
sired use of the sensor.
Table 10 — HH57AC081 Sensor DIP Switch
DIP SWITCH POSITIONS FOR SWITCHES 1, 2, AND 3
USE
1
DA
OFF
RA
ON
OA
OFF
NOTE: When an S-Bus sensor is connected to an existing net-
work, it will take 60 minutes for the network to recognize and
auto-configure itself to use the new sensor.
During the 60-minute setup period, no alarms for sensor
failures (except SAT) will be issued and no economizing func-
tion will be available.
CO
Sensor Wiring
2
When using a CO
sensor the black and brown common
2
wires are internally connected and only one is connected to
"IAQ COM" on the W7220. Use the power from the W7220 to
power the CO
sensor OR make sure the ground for the power
2
supplies are common. See Fig. 47 for CO
DIP
SWITCH
LABEL
DIP
SWITCHES
(3)
S-BUS
2 PIN SIDE
CONNECTOR
TYPE
DESCRIPTION
S-BUS
Communications
S-BUS
(Enthalpy Control
Sensor Bus)
S-BUS
Communications
S-BUS
(Enthalpy Control
Sensor Bus)
2
3
ON
OFF
OFF
OFF
OFF
OFF
sensor wiring.
2
CO
SENSOR
2
24V
ANALOG
OUT
1
POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION
AS REQUIRED.
Fig. 47 — CO
Interface Overview
This section describes how to use the EconoMi$er
interface for:
•
Keypad and menu navigation
•
Settings and parameter changes
•
Menu structure and selection
User Interface
The user interface consists of a 2-line LCD display and a 4-
button keypad on the front of the economizer controller.
Keypad
Use the four navigation buttons (see Fig. 48) to scroll
through the menus and menu items, select menu items, and to
change parameter and configuration settings.
To use the keypad when working with menus:
•
Press the ▲ (Up arrow) button to move to the previous
menu.
•
Press the ▼ (Down arrow) button to move to the next
menu.
•
Press the
(Enter) button to display the first item in the
currently displayed menu.
•
Press the
(Menu Up/Exit) button to exit a menu's item
and return to the list of menus.
Fig. 48 — W7220 Controller Navigation Buttons
To use the keypad when working with Setpoints, System
and Advanced Settings, Checkout tests and Alarms:
1.
Navigate to the desired menu.
2.
Press the
(Enter) button to display the first item in the
currently displayed menu.
3.
Use the ▲ and ▼ buttons to scroll to the desired
parameter.
29
RED
L1
(HOT)
BLACK
L2
1
YELLOW
+
BROWN
–
ORANGE
GREEN
Sensor Wiring
2
user
®
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