High And Low Pressure Sensors - Panasonic U-72MF2U9 Service Manual

11. High and Low Pressure Sensors

11. High and Low Pressure Sensors
11. High and Low Pressure Sensors
The connection ports for the high and low pressure sensors do not employ Schrader-type push-to-release
valves. Therefore it is necessary to recover refrigerant when removing and installing them.
Or it is one option to just disconnect the wire from failed sensor from PCB, and add a new sensor at high/low
pressure sampling port.
If you decide to literary replace the sensor, please first recover refrigerant from outdoor unit and then please
follow the following steps.
11-1. Removing the High and Low Pressure Sensors
(1) Follow the instructions in "1. Removing Panels" and remove the corresponding components from the outdoor unit
where the high pressure sensors will be removed.
(2) Disconnect the high (3P) & low (4P) pressure sensors' connector sockets (BLK) & (WHT) from terminals on the
outdoor unit control PCB of the outdoor unit where the high & low pressure sensors will be removed.
(3) Use 2 adjustable wrenches in combination to remove the high & low pressure sensors.
Please make sure the refrigerant is recovered before removing the sensors
CAUTION
the connection port does not employ a Schrader-type valve.
11-2. Installing the High and Low Pressure Sensors
(1) Use 2 adjustable wrenches in combination to install the high and low pressure sensors.
Type: 72, 96
Low Pressure Sensor
Outdoor Unit Repair Procedures
Outdoor Unit Repair Procedures Outdoor Unit Repair Procedures
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2WAY VRF SYSTEM
2WAY VRF SYSTEM
3WAY VRF SYSTEM
High Pressure Sensor
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