Airstream TC4-NVS Mode D'emploi page 12

TC4-NVS
2 Extending the Probes
Each probe can be extended up to 500 feet (150 m):
Use a shielded cable of outside diameter between 0.245 and 0.260
in (6.22 and 6.60 mm) to ensure the cable entry is liquid tight
(cable dimensions should not be under 18 AWG). Do not ground
the shielding.
It is preferable to solder the cable joint to ensure a proper contact
between the two cables.
CAUTION
crossing over other cables, cross at 90
3 Detecting Faulty Probes
If a faulty probe is detected, the Defective Probe pilot light turns on. The
room temperature shown on the display is then the average temperature
measured by the probes in working condition. The controller will operate
according to this temperature.
To identify the faulty probe:
Set the selection knob to AMBIENT. The room temperature is dis-
played.
Press the push-button. If the probe connected to terminal # 1 is not
faulty, "Pr 1" is displayed, alternating with the temperature measured
by the probe. Otherwise, "Pr 1" alternates with "P".
Keep pressing the push-button to view the status of the other probes.
NOTE:
If all the probes are defective, the controller operates the cooling
stages in minimum ventilation mode.
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TC4-NVS.rev.04
: Do not run probe cables next to other power cables. When
o
.