Bryant Legacy 549J 12 Series, Руководство по установке

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Use Fig. 47 and Table 11 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 fail -
ures (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 (see Fig. 46). Use the power from the
W7220 to power the CO
2
sensor OR make sure the ground for
the power supplies are common. See Fig. 48 for CO
2
sensor
wiring.
Fig. 48 — CO
2
Sensor Wiring
INTERFACE OVERVIEW
This section describes how to use the EconoMi$er
® X user in -
terface for:
• Keypad and menu navigation
• Settings and parameter changes
• Menu structure and selection
User Interface
The user interface consists of a 2-line LCD display and a 4-but -
ton keypad on the front of the economizer controller.
Keypad
Use the four navigation buttons (see Fig. 49) to scroll through
the menus and menu items, select menu items, and to change
parameter and configuration settings.
To use the keypad when working with menus:
• Press the ▲ (Up arrow) button to move to the previous
menu.
• Press the ▼ (Down arrow) button to move to the next
menu.
• Press the (Enter) button to display the first item in the
currently displayed menu.
• Press the (Menu Up/Exit) button to exit a menu’s item
and return to the list of menus.
Fig. 49 — W7220 Controller Navigation Buttons
To use the keypad when working with Setpoints, System and
Advanced Settings, Checkout tests and Alarms:
1. Navigate to the desired menu.
2. Press the (Enter) button to display the first item in the
currently displayed menu.
3. Use the ▲ and ▼ buttons to scroll to the desired parameter.
4. Press the (Enter) button to display the value of the
currently displayed item.
5. Press the ▲ button to increase (change) the displayed
parameter value.
6. Press the ▼ button to decrease (change) the displayed
parameter value.
NOTE: When values are displayed, pressing and holding the ▲or
▼ button causes the display to automatically increment or
decrement.
1. Press the (Enter) button to accept the displayed value
and store it in nonvolatile RAM. “CHANGE STORED”
displays.
2. Press the (Enter) button to return to the current menu
parameter.
3. Press the (Menu Up/Exit) button to return to the previ -
ous menu.
Menu Structure
Table 12 illustrates the complete hierarchy of menus and pa -
rameters for the EconoMi$er
®
X system.
The Menus in display order are:
• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS
Table 10 — 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 11 — HH57AC081 Sensor DIP Switch
USE
DIP SWITCH POSITIONS FOR SWITCHES 1, 2, AND 3
1 2 3
DA
OFF ON OFF
RA
ON OFF OFF
OA
OFF OFF OFF
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
2 LINE
LCD
MENU UP
(EXIT)
BUTTON
SCROLL
UP/DOWN
BUTTONS
SELECT
(ENTER)
BUTTON