Wiring Diagram - Genebre 3902 Manual Del Usuario

INSTRUCTION
5. Cool/heat shift: When the thermostat is used for 2-pipe application, move the power supply switch to
"", the system will enter into cooling state, the LCD will show the cooling state symbol "". Move the
switch to "", the system will enter into heating state, the LCD will show the heating state symbol "".
Move the switch to "", the LCD will be shut off, and then the system will be shut off, too. When it is
used for 4-pipe application, move the power supply switch to "ON" position, the system will be
powered on and start to work, the cool/heat state will shift automatically according to the ambient
temperature and setting temperature, and output control signal to control corresponding actuator.
Move the power supply switch to "OFF" position, the LCD will be shut off and then the system will be
shut off, too.
6. Built-in/external sensor: When built-in NTC thermistor is used, the jumper J3 should be put to "Int"
position. If the external NTC sensor is used, the wire of the external sensor should be connected with
terminal Rx, and the jumper J3 should be put to "Ext" position.
7. Fan: When the thermostat is in cooling or heating state, move the fan switch
display corresponding air volume symbol. The terminals will output power and provide operating
power supply for the fan. If the thermostat isn't connected to the fan, only
the LCD. The symbol
correctly.
8. Temperature setting: When user presses
temperature setting will show increase or decrease accordingly (Default value is 25 /
centigrade calculation, the increase/decrease rate is 1
Fahrenheit calculation, the increase/decrease rate is 1
stops pressing the button for over 5 seconds, the thermostat will change the setting temperature data
in its memory, and save the updating data. The LCD will show the ambient temperature.
(You can choose the initialization setting point as 22
9. The temperature range shown on the LCD is 0

WIRING DIAGRAM

can only be shown when the thermostat is connected to fan completely and
（increase）/ （decrease）button, LCD display
△ ▽
, the adjusting range is 10~30
℃
o
F, the adjusting range is 50~86
/72℉, 23 / 74℉ or 25 /
℃ ℃
℉ ~ 99 ℉.
~ 40 or 32
℃ ℃
- - , the LCD will
or can be shown on
o
77 F). For
℃
℃
o
F. When user
77 ℉.)
℃
R04
; for
5