Bryant 559K 08 Series Service And Maintenance Instructions page 48

Table 10 — HH57AC081 Sensor Wiring Terminations
TERMINAL
NUMBER LABEL
1 S-BUS
2 S-BUS
Use Fig. 71 and Table 11 to set the DIP switches for the desired
use of the sensor.
Table 11 — 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 function will be
available.
CO SENSOR WIRING
2
When using a CO sensor the black and brown common wires are
2
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 supplies are com-
mon. See Fig. 72 for CO sensor wiring.
2
CO Sensor
24V
+
Analog
Out
–
1 Power supply. Provide disconnect
means and overload protection
as required.
Fig. 72 — 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
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
Red L1
(Hot)
Black
L2
1
Yellow
Brown
Orange
Green
Sensor Wiring
2
®
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. 73) to scroll through the
menus and menu items, select menu items, and to change parame-
ter 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
currently displayed menu.
• Press the
and return to the list of menus.
2
Menu Up
(Exit)
Button
Fig. 73 — W7220 Controller Navigation Buttons
To use the keypad when working with Setpoints, System and Ad-
vanced Settings, Checkout tests and Alarms:
1. Navigate to the desired menu.
2. Press the
currently displayed menu.
3. Use the ▲ and ▼ buttons to scroll to the desired
parameter.
4. Press tthe
currently displayed item.
5. Press the ▲ button to increase (change) the displayed
parameter value.
6. Press the ▼ button to decrease (change) the displayed
parameter value.
NOTE: When values are displayed, pressing and holding
the ▲or ▼ button causes the display to automatically
increment or decrement.
7. Press the
X user
and store it in nonvolatile RAM. "CHANGE STORED"
displays.
8. Press the
parameter.
9. Press the
previous menu.
48
(Enter) button to display the first item in the
(Menu Up/Exit) button to exit a menu's item
Scroll
Up/Down
Buttons
(Enter) button to display the first item in the
(Enter) button to display the value of the
(Enter) button to accept the displayed value
(Enter) button to return to the current menu
(Menu Up/Exit) button to return to the
2 Line
LCD
Select
(Enter)
Button