27
Table 5 — Economizer Module - Right Hand
Terminal Blocks
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. 50 and Table 6 to locate the wiring terminals for each S-
Bus sensor.
Use Fig. 50 and Table 6 to locate the wiring terminals for
each enthalpy control sensor.
Fig. 50 — S-Bus Sensor DIP Switches
Table 6 — HH57AC081 Sensor Wiring Terminations
Use Fig. 50 and Table 7 to set the DIP switches for the de-
sired use of the sensor.
Table 7 — HH57AC081 Sensor DIP Switch
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
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. 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. 51 for CO
2
sensor wiring.
Fig. 51 — CO
2
Sensor Wiring
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. 52) are used to scroll
through the menus and menu items, select menu items, and to
change parameter and configuration settings.
LABEL
TYPE
DESCRIPTION
Top Right Terminal Blocks
AUX2 I
24 vac IN
The first terminal is not used.
OCC
24 vac IN
Shut Down (SD) or HEAT (W)
Conventional only
and
Heat Pump Changeover (O-B) in Heat
Pump mode.
E-GND
E-GND
Occupied/Unoccupied Input
EXH1
24 vac OUT Exhaust Fan 1 Output
AUX1 O
24 vac OUT
Programmable:
Exhaust fan 2 output
or
ERV
or
System alarm output
Bottom Right Terminal Blocks
Y2-I
24 vac IN
Y2 in - Cooling Stage 2 Input from
space thermostat
Y2-O
24 vac OUT Y2 out - Cooling Stage 2 Output to
stage 2 mechanical cooling
Y1-I
24 vac IN
Y1 in - Cooling Stage 2 Input from
space thermostat
Y1-O
24 vac OUT Y1 out - Cooling Stage 2 Output to
stage 2 mechanical cooling
C
COM
24 vac Common
R
24 vac
24 vac Power (hot)
DIP
SWITCH
LABEL
DIP
SWITCHES
(3)
S-BUS
2 PIN SIDE
CONNECTOR
S-BUS
TERMINALS
(1 AND 2)
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
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
Summary of Contents for WeatherMaster 50HC14
Page 4: ...4 Fig 2 Unit Dimensional Drawing 14 Size Unit ...
Page 5: ...5 Fig 2 Unit Dimensional Drawing 14 Size Unit cont HORIZONTAL ECONOMIZER VERTICAL ECONOMIZER ...
Page 8: ...8 Fig 4 Roof Curb Details ...
Page 24: ...24 Fig 46 Typical Humidi MiZer Adaptive Dehumidification System Humidistat Wiring ...
Page 39: ...39 Fig 54 50HC14 Control Box Component Locations with ComfortLink Controls ...
Page 40: ...40 Fig 55 50HC14 ComfortLink Control Wiring Diagram ...
Page 41: ...41 Fig 56 50HC14 ComfortLink Power Wiring Diagram ...
Page 42: ...42 Fig 57 50HC14 ComfortLink with Humidi MiZer Power Wiring Diagram ...
Page 44: ...44 Fig 60 PremierLink Wiring Schematic ...
Page 45: ...45 Fig 61 PremierLink Wiring Schematic with Humidi MiZer System Option ...
Page 53: ...53 Fig 80 RTU Open System Control Wiring Diagram ...
Page 54: ...54 Fig 81 RTU Open System Control Wiring Diagram with Humidi MiZer System Option ...
Page 64: ......
Page 65: ......