Carrier 50HCQ12 Installation Instructions Manual page 31

S-Bus Sensor Wiring
The labels on the sensors and controller are color coded for ease of
installation. Orange labeled sensors can only be wired to orange
terminals on the controller. Brown labeled sensors can only be
wired to S-bus (brown) terminals. Use Fig. 48 and Table 10 to lo-
cate the wiring terminals for each S-Bus sensor.
Use Fig. 48 and Table 10 to locate the wiring terminals for each
enthalpy control sensor.
S-BUS
TERMINALS
(1 AND 2)
Fig. 48 — S-Bus Sensor DIP Switches
Table 10 — HH57AC081 Sensor Wiring Terminations
TERMINAL
NUMBER LABEL
1
S-BUS
2
S-BUS
Use Fig. 48 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.
DIP
SWITCH
LABEL
DIP
SWITCHES
(3)
S-BUS
2 PIN SIDE
CONNECTOR
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
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 (see Fig. 47). Use the power from the W7220 to power
the CO sensor OR make sure the ground for the power supplies
2
are common. See Fig. 49 for CO
CO SENSOR
2
24V
ANALOG
OUT
1 POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION
AS REQUIRED.
Fig. 49 — CO
Interface Overview
This section describes how to use the EconoMi$er
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. 50) 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.
MENU UP
SCROLL
(EXIT)
UP/DOWN
BUTTON
BUTTONS
Fig. 50 — W7220 Controller Navigation Buttons
31
sensor wiring.
2
RED L1
(HOT)
BLACK
L2
1
YELLOW
+
BROWN
–
ORANGE
GREEN
Sensor Wiring
2
®
SELECT
(ENTER)
BUTTON
X user inter-
2 LINE
LCD