Bryant LEGACY 580J*20M Series, Руководство по установке

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Table 8 — HH57AC081 Sensor Wiring Terminations
Use Fig. 36 and Table 9 to set the DIP switches for the desired
use of the sensor.
Table 9 — HH57AC081 Sensor DIP Switch
NOTE: When a 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. 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. 37 for
CO
2
sensor wiring.
Fig. 37 — CO
2
Sensor Wiring
INTERFACE OVERVIEW — This section describes how to
use the economizer’s user 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 econo-
mizer controller.
KEYPAD — The four navigation buttons (see Fig. 38) are used
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.
Fig. 38 — W7220 Controller Menu Buttons
Press the (Menu Up/Exit) button to exit a menu’s item
and return to the list of menus. To use the keypad when work-
ing 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 cur-
rently displayed item.
5. Press the ▲ button to increase (change) the displayed pa-
rameter value.
6. Press the ▼ button to decrease (change) the displayed pa-
rameter value.
NOTE: When values are displayed, pressing and holding the or
button causes the display to automatically increment.
7. Press the (Enter) button to accept the displayed value
and store it in nonvolatile RAM. “CHANGE STORED”
displays.
8. Press the (Enter) button to return to the current menu
parameter.
9. Press the (Menu Up/Exit) button to return to the previ-
ous menu.
MENU STRUCTURE — Table 10 illustrates the complete
hierarchy of menus and parameters for the EconoMi$er ® X
system.
The Menus in display order are:
• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS
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)
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