Memory Backup, Room air sensor fault E01

Sequence of Operation – Wall mounted thermostat mode

Note: While in Remote thermostat mode (see configuration), only the “FAN” and “TIME” buttons are acti- vated and will beep when pressed.

Memory Backup:

In the event of a power failure the control will retain all of it’s settings including the mode of operation. When power is restored, after a three minute time delay, the control will re- turn to the mode of operation that it was in prior to the power failure.

Fault conditions

Room air sensor fault: E01

If the room air sensor is disconnected, damaged or malfunctions the LCD display will flash error code “E01” to signify that a fault has occurred. Operation will con- tinue with the control using the last known value for the room air sensor.

Condensate fault: E02

If the control senses a condensate fault condition either through the optional con- densate pumps safety switch or the drain pan sensors, the LCD display will flash error code “E02”. The compressor will switch off for a minimum of three minutes and until the fault condition is corrected.

ID coil sensor fault: E03

The indoor coil sensor monitors the tem- perature of the indoor coil. If a freeze condition exists continuously for three minutes, the LCD will display error code “E03” to signify that a fault has occurred. The compressor will switch off for a mini- mum of three minutes and until the fault condition is corrected. Also, if the micro- processor detects an evaporator freeze condition four times within a 24 hour pe- riod, the filter check indicator will appear.

INFRARED Remote Control Option

Operational range 55- 90° F (in 1° increments.)

Figure 6

Pressing the “+” will increase the set point temperature setting. Pressing the “-“ button will de- crease the setpoint temperature setting.

Dry

Pressing the “DRY” button will place the unit in Dry Mode.

FAN

Pressing the “FAN” button will place the unit in fan mode.

HEAT

Pressing the “HEAT” button will place the unit in Heat mode.

COOL

Pressing the “COOL” button will place the unit in Cool mode.

Note: Batteries Included.

Power

Pressing the “POWER” button will turn the unit On or Off.

AUTO

Pressing the “AUTO” button will place the unit in Auto changeover mode.

FAN SPEED

Pressing the “FAN SPEED” but- ton will scroll the unit through fan the fan speed selection. The se- quence is High, Low and Auto.

Louver

Pressing the “LOUVER” button will enter the Louver Configura- tion mode. While in Louver Con- figuration mode, each successive press of the louver button will scroll through the louver positions. After idle for 10 seconds, the control will exit the Louver Configuration mode.

WLCA/WLHA High Wall Evaporator

www.enviromaster.com

WLHA, S1C specifications

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EMI S1C Memory Backup, Room air sensor fault E01, Condensate fault E02, ID coil sensor fault E03

Models: WLHA S1C