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TE Technology TC-720 - Page 87

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87
39. LOW PWM % FAN
Write Command: 38
Read Command: 6c
Interpret: Allowable range is 0 to 100
10.
This is the low fan PWM % in cooling mode when using fan speed control.
LOW PWM % FAN should always be less than HIGH PWM % FAN.
40. FAN PWM % BOOST
Write Command: 39
Read Command: 6d
Interpret: Allowable range is 0 to 100
10,
this is the OUTPUT% at which the fan speed starts to increase from LOW
PWM% to HIGH PWM%.
41. FAN HEAT MODE (when Output >0%)
Write Command: 3b
Read Command: 6f
Interpret: 0 == FAN OFF DURING HEAT
1 == FAN AT LOW DURING HEAT
2 == FAN ON DURING HEAT (This proportionally increases the fan speed in the heating mode.
This is a beta feature and technical support is not available at this time.)
42. FAN DELAY TIMER COUNTS
Write Command: 3e
Read Command: 72
Interpret: Range 0 to 3276810; 1 count corresponds to 0.02 seconds
43. FAN PWM FREQUENCY
Write Command: 3c
Read Command: 70
Interpret: PWM frequency used for fan speed control (consult fan manufacturer for suitable frequency).
0 == 43,200 Hz
1 == 5,400 Hz
2 == 675 Hz
3 == 169 Hz
4 == 42 Hz
44. SET MODE
Write Command: 3d
Read Command: 71
Interpret: 0 == NORMAL SET
1 == RAMP/SOAK SET MODE
2 == PROPORTIONAL+DEAD BAND
45. RAMP/SOAK SEQUENCE START/STOP
Write Command: 08
Read Command: NA
Interpret: Send 1 to start sequence
Send 0 to abort sequence