Bryant Preferred Series User Manual

56
Fig. 72 — S-Bus Sensor DIP Switches
Use Fig. 72 and Table 26 to set the DIP switches for the desired
use of the sensor.
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
2
Sensor Wiring
When using a CO
2
sensor, the black and brown common 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
2
sensor OR make sure the ground for the power supplies are com-
mon. See Fig. 73 for CO
2
sensor wiring.
Fig. 73 — CO
2
Sensor Wiring
INTERFACE OVERVIEW
This section describes how to use the EconoMi$er
®
X user inter-
face 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. 74) 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 (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. 74 — 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 (Enter) button to display the first item in the
currently displayed menu.
3. Use the ▲ and ▼ buttons to scroll to the desired
parameter.
4. Press the (Enter) button to display the value of the
currently displayed item.
Table 25 — HH57AC081 Sensor Wiring Terminations
TERMINAL
TYPE DESCRIPTION
NUMBER LABEL
1 S-BUS S-BUS
S-BUS
Communications
(Enthalpy Control
Sensor Bus)
2 S-BUS S-BUS
S-BUS
Communications
(Enthalpy Control
Sensor Bus)
Table 26 — HH57AC081 Sensor DIP Switch
USE
DIP SWITCH POSITIONS FOR SWITCHES 1, 2, AND 3
123
DA OFF ON OFF
RA ON OFF OFF
OA OFF OFF OFF
DIP
Switch
Label
DIP
Switches
(3)
S-Bus
2 Pin Side
Connector
S-Bus
Terminals
(1 and 2)
CO
2
SENSOR
24V
ANALOG
OUT
L1
(HOT)
L2
RED
BLACK
YELLOW
BROWN
ORANGE
GREEN
+
–
POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION
AS REQUIRED.
1
1

Bryant Preferred Series Specifications

General

Brand	Bryant
Model	Preferred Series
Category	Air Conditioner
Language	English