Airstream TC5-2V4SA User Manual page 45

ZONED HEATERS
To configure your system for zoned heaters, set dipswitch # 8 to ON. Since
the two heater outputs function independently, different probes are assigned
to each output: Probes 1 and 2 are assigned to Heater 1 and Probes 3 and
4 are assigned to Heater 2. Individual probes can be turned on or off using
the dipswitch settings. If both probes are activated for a given heater, the
average temperature from both probes is used. To use stages 5 and 6 for
heating, set internal switches # 6 and 7 to ON. To use only stage 6 for
heating, set internal switch # 6 to ON and # 7 to OFF.
Both heating zones can have negative and positive heater offsets. A nega-
tive offset is used when controlling heat mats, for example.
To avoid ventilation problems when using zoned heating, a special protec-
tion is built into the device. Suppose the animals are young and confined to
one part of the building (zone 1) while the rest of the building is heated at a
minimum level (zone 2). If the temperature difference between zones is too
ZONE 2
PROBES 3 & 4
NOT USED
MINIMUM HEAT
great and zone 1 fans operate according to the average temperature for both
zones, cooling in zone 1 may be insufficient. A built-in protection will oper-
ate the fans according to the probes of the zone with the highest tempera-
ture whenever the temperature difference between zones is greater than a
user-defined value.
TC5-2V4SA
ZONE 1
PROBES 1 & 2
YOUNG ANIMALS
TC5-2V4SA rev.06
45