Haier AH1-070B Manual page 25

6.6 Temperature Sensor Installation
(1) TC2 sensor should be attached after the distributor, on the coldest part of the heat exchanger pipe.
(2) TC1 sensor should be installed approximately 200mm behind the header of AHU heat exchanger.
(3) TC1/2 sensor should be insulated for optimized system performance.
(4) Room temperature sensor should be installed where room air enters.
Select IN/OUT sensor location
Example of room temperature sensor installation
Exhaust
Return Air Air Outdoor Air
Room temperature sensor location
Note
• B raze the sensor holder at location suggested above and fix the sensor with sensor clip.
• TC1/TC2 sensor should be installed where temperature of heat exchanger can be measured accurately.
• Additional backwater bend is required for horizontally mounted sensors.
• For vertically mounted sensors, the sensor sleeve needs to be inserted from the bottom up.
• When the sensor is installed, it should be fixed firmly and in full contact with the copper tube.The sensor and the
copper pipe should adopt the heat preservation sheath to prevent the detection of temperature deviation.
Header
Supply Air
*Refrigerant flow
Distributor
TC2 sensor
TC1 sensor
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Cooling Mode
Heating Mode