NovaLynx Corporation________________________________________________________________________________
210-421x-A
Page 11
March 2021
7
CONNECTIONS
Please refer to the connection diagram in
Appendix A
of this manual.
The temperature sensor and AC adapter (NovaLynx 200-WS-21P, sold separately) are supplied with
connectors that fit the ¼" spade terminals on the temperature alarm circuit board. Extra connectors
are provided for connecting an earth ground and alarm relay connections. You will need a crimp tool or
heavy duty pliers to make these connections. You will also need to provide insulated wire for the earth
ground and relay connections. Stranded wire (14 to 16 AWG) is preferred.
Standard Wire
Wire Connector with an
Connector
extra lug for Earth Ground
7.1
Temperature Sensor Connection
Route the temperature sensor cable through the gland fitting and into the case. Connect the earth
ground connector with the tab facing down, to make room for the other connections. Attach the red
and black wires as indicated on the drawing.
Prepare a suitable length wire with a standard wire connector, and connect it to the lug on the earth
ground connector. Route the other end of this wire to a good earth ground – an electrical box with an
earth connection or a metal cold water pipe that actually enters the ground. Failure to provide a
ground may cause erratic operation and make the system more vulnerable to damage from nearby
lightning strikes
.
7.2
Power Connection
NOTE:
It is good practice to program the set points and delays, and then operate the system using the
visible LEDs and buzzer as alarm indicators for testing the system before connecting the relays to your
external equipment.
Route the wiring from the AC Adapter or other power supply through the cable gland and attach the
positive terminal (marked with red shrink wrap or a white stripe on one lead) to the ACin / DCin
terminal. Connect the ground wire to the ACin / DCgnd terminal. The power input accepts 12 volts AC
or DC.
NovaLynx recommends connecting the AC Adapter to an outlet with a surge suppressor. Power strips
with surge suppressors are often used to protect computer equipment and are readily available.
Check your connections to make sure there are no stray wires that could cause a short circuit. Plug in
your power supply. The green power LED should turn on and the word "Temp:" will be displayed. If you
see the word "Wind:" instead of "Temp:" then the DIP switches are in the wrong position. Refer to the
"DIP Switch Settings" section of the manual to correct this situation.
