Carrier WeatherMaster 48HC07-12 Installation Instructions Manual page 26

Table 8 — Economizer Module - Right Hand
Terminal Blocks
LABEL TYPE
Top Right Terminal Blocks
AUX2 I 24 vac IN The first terminal is not used.
Shut Down (SD) or HEAT (W)
Conventional only
OCC 24 vac IN and
Heat Pump Changeover (O-B) in Heat
Pump mode.
E-GND E-GND Occupied/Unoccupied Input
24 vac
EXH1 Exhaust Fan 1 Output
OUT
Programmable:
Exhaust fan 2 output
24 vac or
AUX1 O
OUT ERV
or
System alarm output
Bottom Right Terminal Blocks
Y2 in - Cooling Stage 2 Input from
Y2-I 24 vac IN
space thermostat
24 vac Y2 out - Cooling Stage 2 Output to
Y2-O
OUT stage 2 mechanical cooling
Y1 in - Cooling Stage 2 Input from
Y1-I 24 vac IN
space thermostat
24 vac Y1 out - Cooling Stage 2 Output to
Y1-O
OUT stage 2 mechanical cooling
C COM 24 vac Common
R 24 vac 24 vac Power (hot)
S-BUS SENSOR WIRING — The labels on the sensors and
controller are color coded for ease of installation. Orange la-
beled sensors can only be wired to orange terminals on the con-
troller. Brown labeled sensors can only be wired to S-bus
(brown) terminals. Use Fig. 42 and Table 10 to locate the wir-
ing terminals for each S-Bus sensor.
Use Fig. 42 and Table 9 to locate the wiring terminals for
each enthalpy control sensor.
S-BUS
TERMINALS
(1 AND 2)
Fig. 42 — S-Bus Sensor DIP Switches
DESCRIPTION
DIP
SWITCH
LABEL
DIP
SWITCHES
(3)
S-BUS
2 PIN SIDE
CONNECTOR
Table 9 — HH57AC081 Sensor Wiring
TERMINAL
NUMBER LABEL
1 S-BUS
2 S-BUS
Use Fig. 42 and Table 10 to set the DIP switches for the
desired use of the sensor.
Table 10 — 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. 43 for
CO sensor wiring.
2
CO SENSOR
2
24V
ANALOG
OUT
1 POWER SUPPLY. PROVIDE DISCONNECT
MEANS AND OVERLOAD PROTECTION
AS REQUIRED.
Fig. 43 — 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 econo-
mizer controller.
KEYPAD — The four navigation buttons (see Fig. 44) 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.
26
Terminations
TYPE DESCRIPTION
S-BUS
Communications
S-BUS
(Enthalpy Control
Sensor Bus)
S-BUS
Communications
S-BUS
(Enthalpy Control
Sensor Bus)
2
ON OFF
OFF OFF
OFF OFF
2
sensor OR make sure
2
RED L1
(HOT)
BLACK
L2
1
YELLOW
+
BROWN
–
ORANGE
GREEN
Sensor Wiring
2
3
sensor the