ΙΙΙ
. Indoor unit
6. Refrigerant system diagram
(Cooling only & heat pump)
ΙΙΙ
46
6-1. Refrigerant system diagram
6-2. Main parts status
(1) Temperature sensor (EIS, Evaporator Inlet Sensor)
Used to measure the refrigerant temperature at the inlet of heat exchanger which is used
to control the electronic expansion valve.
(2) Temperature sensor (EOS, Evaporator Outlet Sensor)
Used to measure the refrigerant temperature at the outlet of heat exchanger which is used
to control the electronic expansion valve.
(3) Temperature sensor (IATS, Indoor Air Temperature Sensor)
Used to measure the indoor temperature which is used to control operation of the indoor
and outdoor unit.
(4) Electronic expansion valve (EEV) kit
Uses the MICOM of the indoor unit to control the opening of electronic expansion valve by comparing the
temperatures of inlet and outlet sensors to provide optimum control of the refrigerant flow.
(5) Strainer
Used to remove any impurities from the piping.
motor
fan
temperature
sensor
temperature sensor
temperature sensor
heat exchanger
electronic expansion valve kit
strainer
strainer
3-2.Indoor unit_TM_E_06890 2/27/03 10:14 AM Page 46
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