60
Correspondence table:
10.2 Pressure sensor
The high and low values for the HP/LP pressure sensors are given below:
The sensors are adjusted using parameters P30 to P39.
Measurement range:
- Power supply: 5 V DC
- Signal: 0.5 - 4.5 V
Short-circuit faults will be detected by a voltage ≥ 4.75 V.
Open-circuit faults will be detected by a voltage ≤ 0.25 V.
The pressure values given are for relative pressure.
The HP sensor will:
- Monitor the HP pressure in the circuit and relay this information
- Control the unit using the HP
- Control the condensing pressure
The LP sensor will:
- Monitor the LP pressure in the circuit and relay this information - Monitor for refrigerant leaks before turning on stages
When reading the operation parameters for the pressure levels, the sensors can be adjusted with the OK button if is a difference is
found between a value that is read and the corresponding value measured by a pressure gauge.
Example:
Press OK to access and change the adjustment value.
Press OK to confirm the new adjustment value and go back to the
operation parameter.
Press ESC to cancel any changes made and go back to the
operation parameter.
This readjustment will be used to correct the difference between the value
measured by a pressure sensor and the value read on a pressure gauge.
The resulting new slope will then be used for control.
CONTROL AND OUTDOOR
SENSOR 10 KΩ
P 3 x x H P x P R E S S U R E ↑
x x . x b ↓
S E N S O R A D J U S T M E N T H P x
x x . x b 0 . 0 b
Calculation
with
adjustment
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