Hisense HZX-4.0AEC Operation Installation Maintenance Manual page 13

l The selected heat exchanger of AHU must be designed for R410A.The design pressure of the heat
exchanger is 4.15 MPa. The burst pressure of heat exchanger and other pipes must exceed 12.45MPa.
Insufficient strength may cause the pipes to crack and result in gas leakage.
l Refrigerant leakage rate of the heat exchanger is no more than 5g per year.
l Water content and impurity content in the heat exchanger will cause blocking of refrigerant cycle
and failure of compressor and valve. Water content in the heat exchanger is no more than 60PPM.
Impurity content in the heat exchanger is no more than 100mg.
2.5 Capacity Control Mode
Capacity control mode means the kind of capacity control by AHU CONNECTION KIT to adapt the
system performance according to the the cooling and heating load required by the user.
(1) Inlet air (room air) temperature control
Capacity control: For controlling the inlet air (room air) temperature,the capacity is adapted so that
detection temperature of inlet air (room air) reaches the set temperature by remote controller.
Thermostat control: The thermostat becomes OFF if detection temperature of inlet air (room air) has
reached the set temperature by remote controller.
ROOM
ROOM
Installed in the return air side
Fresh