Part no. :
Delta model no. : HEC2010FFA
Page 12
6. If any abnormal acoustic noise from air conditioner happened, please turn off the product and contact with
customer services.
7. The refrigerant is environmental friendly product of R134a. Little refrigerant leakage (< 5 g/ year) is allowed
for application. If refrigerant leakage seriously, please turn off the power and wait for at least 2 hours to
make sure the refrigerant fully exhaust. Please also contact the services to replace spare parts.
8. The compressor electrical protecting cover is sealed with silicon for IP55 requirement. Please do not
dismantle the sealed cover or will lose the quality assurance of the compressor.
1-6. Thermal and Airflow
The internal and external air flow circulation is shown as the figure. Through separated mechanism
design, internal and external air flow won’t be mixed since the waste heat can be dissipated from the
cabinet to the ambience. Internal temperature sensor is placed at return air stream to provide reliable
temperature measurement and safety of operation.
The waste heat generated from the internal equipment will be absorbed by the refrigerant through the
evaporator and dissipate to the ambience by the condenser of external side.