Ecoer EAHAEC-36 - 7.2 Safety Features; 7.3 Basic Functions

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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
Compressor three-minute delay at restart
Compressor functions are delayed for up to ten seconds upon the first startup of the unit, and are delayed for
up to three minutes upon subsequent unit restarts.
Automatic shutoff based on discharge temperature
If the compressor discharge temperature exceeds a certain level for nine seconds, the compressor stops
operation.
Inverter module protection
The inverter module has an automatic shutoff mechanism based on the unit’s current, voltage, and temperature.
If automatic shutoff is initiated, the corresponding error code is displayed on the indoor unit and the unit stops
operation.
Indoor fan delayed operation
• When the unit starts, the indoor fan will operate after a period of setting time.
• If the unit is in heating mode, the indoor fan is regulated by the anti-cold wind function.
Compressor preheating
Preheating is automatically activated when T4 sensor is lower than setting temperature.
Sensor redundancy and automatic shutoff
• If one temperature sensor malfunctions, the air conditioner continues operation and displays the
corresponding error code, allowing for emergency use.
• When more than one temperature sensor is malfunctioning, the air conditioner stops operation.
Abbreviation
Element
T1
Indoor room temperature
T2
Coil temperature of evaporator
T3
Coil temperature of condenser
T4
Outdoor ambient temperature
TP
Compressor discharge temperature
TS
Setting temperature
Tsc
Adjusted setting temperature
In this manual, such as CDIFTEMP, HDIFTEMP2, TCE1, TCE2...etc., they are well-setting parameter of EEPROM.
7.3.2 Fan Mode
When fan mode is activated:
• The outdoor fan and compressor are stopped.
• Temperature control is disabled and no temperature setting is displayed.
• The indoor fan speed can be set to low, medium, high, turbo and auto.
• Auto fan: In fan-only mode, AC operates the same as auto fan in cooling mode with the temperature set at
75℉. Please refer to the indoor auto fan control on page 69 and page 70.
7.2 Safety Features
7.3 Basic Functions
7.3.1 Abbreviation
Unit element abbreviations