Haier HR24D1VAR — технические характеристики датчиков и управления в системах кондиционирования [36/41]

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3.2 Outdoor discharging temp. sensor: R80=50Kf3%, B25/80=4450Kf3%, with copper terminal

3.5 Signal continueous detecting time:

Pressure switch 30seconds

Sensor value 20seconds

Sensor failure (short circuit/open circuit) 2minutes

4. PCB port function

4.1 CN1üü1,2,3,4 are corresponding to the input signal of R,C,Y,O. R: live line, 24VAC; C: neutral

line, 0VAC; Y: 24V compressor input signal; O: 24V 4-way valve input signal. 5 is electric heating

output signal, and used as 24V signal output to start up the electric heating function when

defrosting. 6: pre-set.

See the figure, from left to right, they are 1,2,3,4,5,6.

4.2 CN2üü24VAC control signal + 0VAC neutral line output; to control AC contactor winding.

4.3 CN3üü24VAC control signal + 0VAC neutral line output; to control 4-way valve winding.

4.4 CN4, CN5üüfan motor control port to control the neutral line of outdoor motor.

4.5 CN6üüoutdoor coil temp. sensor connector; the coil temp. sensor connected /disconnected

failure: 30seconds later alarm; the failure can be resumable.

3.3 High pressure switch: N.C. type pressure switch, the open pressure: 435Psi / close pressure:

3.4 Low pressure switch: N.C. type pressure switch, the open pressure: 7.25Psi / close pressure:

377Psi; (adjustable)

21.75Psi; (adjustable)

Central Air Conditioning Model: Heat Pump, HR13-D1