Debugging Functions - Fisher FSL-850B-H-3F Installation And Operation Manual

Note：
1. During quiet function, fan speed is un-adjustable.
2. When turning on auto quiet function, the unit will enter quiet running state according to
temperature difference between room temperature and setting temperature. In this case, fan speed is
adjustable. If temperature difference between room temperature and setting temperature ≥ 4 ℃ , fan will
keep its current speed; if 2 ℃ ≤temperature difference ≤3 ℃ ; fan speed will be reduce one grade ,but if it
is at min. grade, it is un-adjustable.; if temperature difference ≤1 ℃ , fan speed will be at min. grade
3. In auto quiet mode, fan speed can not be raised but reduced. If high fan speed is manually
adjusted, auto quiet mode will quit.
4.There is not auto quiet function in fan or dry mode. Quiet off is default after power failure and
then power recovery.
5 . If quite function is set, turbo function will be canceled.

5.14 Debugging Functions

Under off state of the unit, press Function and Timer buttons continuously for 5s into debugging
menu. Press Mode button to adjust the setting items and ▲ or ▼ button to set the actual value.
5.14.1 Ambient Temperature Sensor Setting
In debugging mode, press Mode button to adjust the temperature displayed location displaying
00, and press ▲ or ▼ button to adjust setting state at timer displayed location. There are 3 types for
selection:
① Indoor ambient temperature is that at return air inlet (01 is displayed at timer displayed location)
② Indoor ambient temperature is that at the place of displayer (02 is displayed at timer displayed
Fig.5.13 Quiet function setting
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