High And Low Pressure Sensors - Sanyo CHDXR09663* Service Manual

11. High and Low Pressure Sensors

The outdoor unit connection ports for the high and low pressure sensors employ Schrader-type push-to-release
valves. Therefore it is not necessary to recover refrigerant when removing and installing them.
11-1. Removing the High and Low Pressure Sensor
(1) Follow the instructions in "1. Removing Panels" and "2. Removing Electrical Component Box and Duct" and
remove the corresponding components from the outdoor unit where the high pressure sensor will be
removed.
(2) Disconnect the high & low pressure sensor connector socket (3P) (BLK) & (WHT) from terminals CN009 and
CN024 on the outdoor unit control PCB of the outdoor unit where the high & low pressure sensor will be
removed.
(3) Use 2 adjustable wrenches in combination to remove the high & low pressure sensors.
When removing the high & low pressure sensors, internal pressure will be applied by
CAUTION
the refrigerant in the outdoor unit. The high & low pressure sensor connection ports on
the outdoor unit employs 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.
Fig. 29
2 - 35
W-2WAY ECO-i SYSTEM
Outdoor Unit Repair Procedures
High pressure
sensor
Low pressure
sensor
2