Airstream TC5-2V4SA User Manual page 38

TC5-2V4SA
3 Adjusting Stage 2 Bandwidth
The Stage 2 bandwidth is the temperature interval within which the Stage 2
variable speed fans increase or decrease in speed proportionally to the
temperature (see the diagram above). The bandwidth can be adjusted
between 0.5°F and 20.0°F (0.3°C and 11.1°C).
n
Set the selection knob to STAGE 2 — OFFSET/BANDWIDTH. The
current offset for Stage 2 is displayed, alternating with the letters "OFT".
n
Press the push-button. The current bandwidth for Stage 2 is displayed,
alternating with the letters "bd".
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Use the adjustment knob to adjust the bandwidth to the desired value.
4 Adjusting Stage 2 Minimum Speed
The minimum speed can be adjusted between 10% and 100% of the full speed
of the fans.
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Set the selection knob to STAGE 2 — MIN. SPEED. The current
minimum speed for Stage 2 flashes on the display.
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Use the adjustment knob to adjust the minimum speed to the desired
value.
5 Adjusting Stage 3 - 6 Differentials
The Stage 3 - 6 cooling differentials are the temperature differences between
the moment the constant-speed fans start to run and the moment they turn
off for each stage (see the diagram above). The differentials can be adjusted
between 0.5°F and 20.0°F (0.3°C and 11.1°C).
n
Set the selection knob to COOLING — DIFFERENTIALS 3-6. The
current differential for Stage 3 is displayed, alternating with the letters
«St. 3».
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TC5-2V4SA rev.06