2 - 331234567893WAY VRF SYSTEMOutdoor Unit Repair Procedures11. High and Low Pressure Sensors2WAY VRF SYSTEMOutdoor Unit Repair Procedures11. High and Low Pressure Sensors2WAY VRF SYSTEMOutdoor Unit Repair Procedures(1) Follow the instructions in “1. Removing Panels” and remove the corresponding components from the outdoor unitwhere the high pressure sensors will be removed.(2) Disconnect the high (3P) & low (4P) pressure sensors’ connector sockets (BLK) & (WHT) from terminals on theoutdoor 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.11. High and Low Pressure SensorsPlease make sure the refrigerant is recovered before removing the sensorsthe connection port does not employ a Schrader-type valve.CAUTIONThe connection ports for the high and low pressure sensors do not employ Schrader-type push-to-releasevalves. 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/lowpressure sampling port.If you decide to literary replace the sensor, please first recover refrigerant from outdoor unit and then pleasefollow the following steps.11-1. Removing the High and Low Pressure SensorsLow Pressure Sensor(1) Use 2 adjustable wrenches in combination to install the high and low pressure sensors.11-2. Installing the High and Low Pressure SensorsType: 72, 96High Pressure Sensor
