Co2 Sensor Wiring; Interface Overview; User Interface; Keypad - Carrier RHV090-120 Installation Instructions Manual

S-BUS
Terminals
(1 and 2)
Fig. 43 — S-Bus Sensor DIP Switches
Table 8 — HH57AC081 Sensor Wiring Terminations
TERMINAL
NUMBER LABEL
1 S-BUS
2 S-BUS
Use Fig. 43 and Table 9 to set the DIP switches for the
desired use of the sensor.
Table 9 — 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
network, 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 SENSOR WIRING
2
When using a CO sensor, the black and brown common
2
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
sensor OR make sure the ground for the
2
power supplies are common. See Fig. 44 for CO
wiring.
30
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
sensor
2
Specifications subject to change without notice.
CO Sensor
2
24V
+
Analog
Out
–
1 Power Supply. Provide Disconnect
Means and Overload Protection
As Required.
Fig. 44 — CO

INTERFACE OVERVIEW

This section describes how to use the EconoMi$er
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. 45) 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.
• Press the (Menu Up/Exit) button to exit a menu's
item and return to the list of menus.
Menu Up Menu Up Menu Up
Scroll Scroll Scroll
(Exit) (Exit) (Exit)
Up/Down Up/Down Up/Down
Button Button Button
Buttons Buttons Buttons
Fig. 45 — W7220 Controller Navigation Buttons
To use the keypad when working with Set Points, 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.
Red L1
(Hot)
Black
L2
1
Yellow
Brown
Orange
Green
Sensor Wiring
2
®
2 Line 2 Line 2 Line
LCD LCD LCD
Select Select Select
(Enter) (Enter) (Enter)
Button Button Button
RHV-090-120-01SI
X user