Carrier 50HCQD07, Руководство по установке

Страница: 34 / 52

34
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. 47 and
Table 8 to locate the wiring terminals for each S-Bus sensor.
Use Fig. 47 and Table 8 to locate the wiring terminals for each
enthalpy control sensor.
Fig. 47 — S-Bus Sensor DIP Switches
Table 8 — HH57AC081 Sensor Wiring Terminations
Use Fig. 47 and Table 9 to set the DIP switches for the desired
use of the sensor.
Table 9 — HH57AC081 Sensor DIP Switch
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 ® 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-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
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
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