Control Unit Mains Supply Connections - Ametek Thermox Series 2000 WDG-IV User Manual

•
For AC mains supply wiring, use between 12 and 14 American Wire
Gauge (AWG) or equivalent metric between 3.3 mm
all signal wiring, use 18 to 22 AWG (0.82 mm
connections, Figure 3-17 shows the recommended sensor cable types
for various WDG-style sensors.
•
Use the conduit entry point closest to the connections you are making.
Do not add any additional conduit entry holes!
•
You may use 1" conduit with a 3/4" adapter at the entry to the Series
2000 controller for signal and sensor wiring.
WDG sEnsoR tYPE
WDG-IV
(O2 ONLY)
WDG-IVC
(COMBUSTIBLES)
WDG-IVCM
(COMBUSTIBLES/METHANE)
Figure 3-17. Required sensor cable wiring (minimum acceptable grades).

Control Unit Mains supply Connections

The Series 2000 control unit can operate using between 85 to 250 volts AC,
47 to 63 Hz. There is no power switch or circuit breaker on the control
unit, and it must be protected by installing it on a circuit-protected line,
maximum 15 amperes, with a switch or circuit breaker in close proximity
to the control unit and within easy reach of an operator. Mark the switch
or circuit breaker as the control unit disconnecting device.
Mains supply connections to the control unit are as follows:
Line - Line connection
Neutral - Neutral connection (USA)
Chassis Stud - Equipment ground (protective conductor)
nUMBER oF tWIstED
PaIRs nEEDED
6 (to 40 ft)
8 (40 to 10000 ft - must
use remote sense)
8 (to 40 ft)
12 (40 to 10000 ft - must
use remote sense)
Do not run control unit AC mains supply wiring in the same conduit
with other AC line power wires. By keeping this wiring separated,
you prevent transient signals from reaching the control unit.
2
2
to 0.33 mm
GaUGE oF WIRE
22 AWG (to 250 ft)
4
18 AWG (to 1000 ft)
18 AWG
18 AWG
2
and 2.1 mm . For
2
). For sensor
Installation | 3-21