Page 2
The enclosure has a hinged cover with a latch. Open the
cover by pulling slightly on the latch on the right side of
the enclosure. At the same time pulling on the cover.
Make wiring connections as per the “Wiring” illustrations.
See Figure 9.
Swing door closed until securely latched. For added
security, 2 screws are provided that may be installed in
the integrated screw tabs. See Figure 5.
WIRING
Deactivate the 24 Vac/dc power supply until all connections are made to the device to prevent electrical
shock or equipment damage. Follow proper electrostatic discharge (ESD) handling procedures when
installing the device or equipment damage may occur. Use 14-22 AWG shielded wire for all connections
and do not locate the device wires in the same conduit with wiring used to supply inductive loads such
as motors. Pull enough wire into the enclosure to reach the terminal blocks and complete the wiring
connection according to the wiring diagram. Make all connections in accordance with national and local
codes.
Connect the plus DC or the AC voltage hot side to the PWR terminal and the power supply common is
connected to the COM terminal. The device is reverse voltage protected and will not operate if connected
backwards. It has a half-wave power supply so the supply common is the same as the signal common. Use
caution when wiring multiple devices or when grounding the secondary of a transformer to ensure that
the circuit ground point is the same on all devices and the controller.
The sensor can be ordered with four output options. Analog options include 4-20 mA active output or
voltage output configurable as 0-5 Vdc or 0-10 Vdc. Network options include BACnet® or Modbus.
The analog outputs are available on the CO, TEMP and
NO
2
terminals. The signal type may be ordered as either
voltage or 4-20 mA active outputs. The voltage model
is selectable for either 0-5 or 0-10 Vdc via the menu (the
factory default is 0-5 Vdc). The current outputs operate
in the active mode and do not require a loop power
supply. This means that the signal current is generated
by the sensor and the outputs must not be connected
to a powered input or device damage will result. Check
the controller Analog Inputs (AI) to determine proper
connection before applying power. Both current and
voltage output signals are referenced to the COM terminal.
The analog output signals are typically connected directly
to the Building Automation System (BAS) and used as
control parameters. See Figure 6.
Figure 5
Figure 6
Typical wiring for 24 Vdc power from controller
Typical wiring for 24 Vac power from controller
Controller
Controller
24 Vac Transformer
PWR
COM
CO
TEMP
NO2
PWR
COM
CO
TEMP
NO2
+24 Vdc
COMMON
Analog Input
Analog Input
Analog Input
COMMON
Analog Input
Analog Input
Analog Input
24 Vac
COMMON
-
+
STATUS STROBE ALARM
UP
TEST
RL1
RL2
DOWN
MENU
PWR CO
M
TEST
B+ A- SHLD
CO TEMP NO2
RP RC CSLP SCLM SD
AP
SDA
M
RT+ RT-
NC1 COM1 NO1 NC2 COM2 NO2
IN-GE-GDTXXX-06
Copyright © Greystone Energy Systems, Inc. All Rights Reserved Phone: +1 506 853 3057 Web: www.greystoneenergy.com
