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It may be recommended to install a latch switch on the zone A or
zone B curtain power unit to stop the stage 1, 2 and 3 cooling fans
as the curtains open for natural ventilation (refer to the USING
THE CONTROLLER section).
ALL WIRING MUST BE DONE BY AN AUTHORIZED
ELECTRICIAN AND MUST COMPLY WITH APPLICABLE
CODES, LAWS AND REGULATIONS. BE SURE POWER
IS OFF BEFORE DOING ANY WIRING TO AVOID
ELECTRICAL SHOCK AND EQUIPMENT DAMAGE.
Temperature Probes
T
he controller is supplied with one room probe for zone A connected to
terminal # 1, one room probe for zone B connected to terminal # 2 and one
outside probe connected to terminal # 4.
CAUTION : The probes operate under low voltage and are isolated from the
supply. Be sure the probe cables remain isolated from all high voltage
sources. Do not route the probe cables and other power cables through the
same electrical knockout. Do not run the probe cables next to other power
cables. When crossing over other cables, cross at 90
Extending the Probes
Each probe can be extended up to 500 feet (150 meters). To extend a probe:
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 (the
cable dimension should not be under 18 AWG).
It is preferable to weld the cable joint to ensure a proper contact
between the two cables.
Do not ground the shielding.
o
.
TC4-2N6F.rev.07
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