Hisense Hi-Therma Series Service Handbook page 435

Hi-Therma Split system - Indoor unit (AHM-044/060/080HCDSAA)
Step 4: As shown above, remove the 2 fastening nuts and remove the plate heat exchanger fixing plate、
insulation foam and plate heat exchanger assembly.
Step 5: The installation of heat exchanger components can be realized according to the above reverse steps.
Water Inlet
●
The above piping is brazed with the plate heat exchanger. If it is to be removed, the welding process is required.
● The water pressure sensor and water inlet pipe are also brazed. If they need to be replaced, they need to be welded.
●
During the operation of the above procedures, pay attention to protect the threads at the connecting end of the piping to avoid damage
leading to poor connection.
● Please seal and protect the end of the piping to avoid pipe blockage caused by foreign matters.
Plate heat exchanger assembly
Insulation foam
Heat Exchanger Water Outlet Pipe
Water Pressure Sensor
Refrigerant Gas Pipe
Refrigerant Liquid Pipe
414
Fixing plate of plate heat exchanger
Fastening nut