34
TC5-1N5FAB rev.06
TC5-1N5FAB
•
If you activated the temperature curve yesterday, the current day num-
ber of the temperature curve is d6. Therefore, if you activate the minimum
speed curve today, it will effectively be in operation in 4 days, when the
current day number of the temperature curve reaches d10. In the mean-
time, the fans will run at the specified single minimum speed (see
example 2).
•
If you activated the temperature curve six days ago, the current day
number of the temperature curve is d11. Therefore, if you activate the mini-
mum speed curve today, it will effectively be in operation the moment you
activate it. In this case, the current minimum speed will be a value between
10% and 20%.
39
TC5-1N5FAB rev.06
TC5-1N5FAB
3
Adjusting Stage 3 Offset
If the floating stage 3 option is enabled (internal switch #10 ON), an offset
must be adjusted for the stage 3. This Offset determines at which tem-
perature the stage 2 fans starts and the temperature at which the stage 3
fans returns to a stop. The Stage 3 Offset can be adjusted between 0°F
and 20°F (0°C and 11.1°C).
n
Set the selection knob to
STAGE 2/3
The current differential for Stage
2 is displayed, alternating with the letters "
St.2"
and
"dif
".
n
Press the push-button. The current offset for Stage 3 is displayed,
alternating with the letters "
St.3"
and
"OFt
".
n
Use the adjustment knob to adjust the offset to the desired value.
4
Adjusting Stage 3 Differential
If internal switch # 7 is set to OFF, Stage 3 can be used to operate constant-
speed cooling fans. The Stage 3 cooling differential is the temperature
difference between the moment the Stage 3 constant-speed fans start to run
and the moment they turn off (see the diagram above). The differential 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 2/3
The current differential for Stage
2 is displayed, alternating with the letters "
St.2"
and
"dif
".
n
Press the push-button. The current differential for Stage 3 is displayed,
alternating with the letters "
St.3"
and
"dif
".
n
Use the adjustment knob to adjust the differential to the desired value.
