Bryant 581J-04A Installation Instructions Manual page 23

Table 7 — HH57AC081 Sensor Wiring Terminations
TERMINAL
NUMBER LABEL
1 S-BUS
2 S-BUS
Use Fig. 37 and Table 8 to set the DIP switches for the
desired use of the sensor.
Table 8 — HH57AC081 Sensor DIP Switch
DIP SWITCH POSITIONS FOR SWITCHES 1, 2, AND 3
USE
1
DA OFF
RA ON
OA OFF
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
failures (except SAT) will be issued and no economizing func-
tion will be available.
CO SENSOR WIRING — When using a CO
2
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
the ground for the power supplies are common. See Fig. 38 for
CO sensor wiring.
2
CO SENSOR
2
RED
24V
BLACK
YELLOW
+
ANALOG
BROWN
OUT
–
ORANGE
GREEN
1 POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION
AS REQUIRED.
Fig. 38 — CO
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
economizer controller.
KEYPAD — The four navigation buttons (see Fig. 39) 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.
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 the
2
sensor OR make sure
2
L1
(HOT)
L2
1
Sensor Wiring
2
• Press the (Enter) button to display the first item in
the currently displayed menu.
Fig. 39 — W7220 Controller Navigation 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
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 parame-
ter.
4. Press the (Enter) button to display the value of the
currently 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 incre-
ment.
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 pre-
vious menu.
MENU STRUCTURE — Table 9 illustrates the complete hi-
erarchy of menus and parameters for the EconoMi$er
tem.
The Menus in display order are:
• STATUS
• SETPOINTS
• SYSTEM SETUP
• ADVANCED SETUP
• CHECKOUT
• ALARMS
IMPORTANT: Table 9 illustrates the complete hierar-
chy. Menu parameters may be different depending on
the configuration. For example, if there is no DCV
(CO ) sensor, then none of the DCV parameters appear
2
and only MIN POS will display. If there is a CO
sor, the DCV MIN and DCV MAX will appear AND if
there is a 2 speed fan DCV MIN (high and low speed)
and DCV MAX (high and low speed will appear).
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sen-
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