Mars Remote Control Manual

Portable Room Air Conditioner Remote Control for: PS-81B, PS-101B

Contact: 517.787.2100 | www.marsdelivers.com | www.heatcontroller.com

Contents

• Features of remote control
• Indicators on remote controller
• Handling the remote controller
• Setting the clock
• Automatic operation
• Cooling/Heating/Fan only operation
• Drying operation
• Timer operation
• Example of timer setting
• Cautions

Specification

Features of Remote Control

The remote control features an LCD display showing current settings and status. Below the display are various buttons for operation.

Button Functions:

• 1 ON/OFF Button: Press to start operation; press again to stop.
• 2 MODE Select Button: Cycles through operation modes: AUTO → COOL → DRY → HEAT → FAN. Note: HEAT mode is not available on cooling-only models.
• 3 SWING Button (on some models): Activates automatic louver swing up and down. Press again to stop.
• 4 TEMP/TIME Button: Use the `+` side to increase temperature or advance timer clockwise. Use the `-` side to decrease temperature or move timer counter-clockwise. Pressing and holding both `+` and `-` for 3 seconds toggles between °C and °F display.
• 5 SLEEP Button: Activates/disables the sleep function for comfortable temperature and energy saving. Available in COOL, HEAT, or AUTO modes. The function is cancelled if MODE, FAN SPEED, or ON/OFF button is pressed.
• 6 RESET Button: Resets all current settings to initial defaults.
• 7 FAN Button: Selects fan speed: AUTO, LOW (///), MED (//////), or HIGH (/////////).
• 8 TIMER Button: Used to preset timer for ON (start) or OFF (stop) operation.
• 9 CANCEL Button: Cancels active TIMER ON, TIMER ON→OFF, or TIMER OFF→ON programs. If only TIMER OFF is set, pressing CANCEL cancels the timer and turns the unit ON. If no timer is set, pressing CANCEL has no effect.
• 10 CLOCK Button: Used to set the current time.
• 11 LED Button: Clears the digit display on the air conditioner; press again to reactivate.
• 12 LOCK Button: Locks all current settings, preventing further operation except unlocking. Press again to cancel LOCK mode.

Indicators on Remote Controller

The remote control display includes several indicators:

• Transmission Indicator: Lights up when transmitting signals to the indoor unit.
• Mode Display: Shows the current operation mode (AUTO, COOL, DRY, HEAT, FAN).
• ON/OFF Display: Indicates the ON/OFF status.
• Temp. Display: Shows the set temperature (17°C/62°F to 30°C/86°F). No temperature is displayed in FAN ONLY mode.
• Time Display: Shows Timer ON/OFF time (0-24 hours) or the current clock time. Clock time is shown when no AUTO-TIMER is active.
• Fan Speed Display: Shows selected fan speed: AUTO, LOW (///), MED (//////), HIGH (/////////). Displays AUTO in AUTO or DRY modes.
• Lock Display: Indicates when the LOCK function is active.
• Sleep Display: Indicates when the SLEEP function is active.

Note: All displays shown are for illustration purposes only.

Handling the Remote Controller

Location of the Remote Controller

Keep the remote controller within 8 meters of the indoor unit's receiver for optimal signal transmission. Ensure the controller can transmit signals without obstruction. Obstructions may cause a time lag of up to 15 minutes for timer operations.

Cautions for Handling

• Ensure curtains, doors, or other materials do not block signals between the remote and the indoor unit.
• Prevent liquid spills into the remote controller.
• Do not expose the remote controller to direct sunlight or excessive heat.
• If the indoor unit's infrared receiver is exposed to direct sunlight, the air conditioner may not function properly. Use curtains to shield the receiver.
• If other electrical appliances react to the remote controller, move those appliances or consult a dealer.

Replacing Batteries

The remote control uses two R03/LR03 dry batteries.

1. Slide the battery compartment cover off.
2. Replace old batteries with new ones, ensuring correct polarity (+ and -) is observed.
3. Reattach the cover by sliding it back into place.

After replacing batteries, it is recommended to set the remote controller's clock.

Setting the Clock

Setting the clock is necessary for the remote controller to function correctly, especially for timer operations. The clock display is active even when the air conditioner is off.

Initial Setting of the Clock

1. After inserting batteries, the clock display will show "12:00".
2. Press and hold the CLOCK button for 3 seconds; the time will begin to flash.
3. Use the TEMP/TIME button: press `+` to advance time by one minute (or 10 minutes when held), press `-` to move time backward by one minute (or 10 minutes when held).
4. Once the correct time is displayed, press the CLOCK button again, or release the `+`/`-` buttons and wait 5 seconds. The time will stop flashing and the clock will start operating.

Readjusting the Clock

To change the time after initial setting, press the CLOCK button for about 3 seconds until the display flashes, then follow steps 1 and 2 of the initial setting.

Note: The clock must be set before the AUTO-TIMER feature will operate. Clock accuracy is within 15 seconds per day.

Caution: Static electricity or high voltage can reset the clock. If the clock displays "12:00" (flashing), readjust it before use.

Operation Modes

Automatic Operation

In AUTO mode, the air conditioner automatically selects cooling, heating (if applicable), or fan-only operation based on the selected temperature and the current room temperature. Once set, these conditions are saved in the unit's memory.

To Start:

1. Ensure the unit is plugged in and powered. The OPERATION indicator on the indoor unit will flash.
2. Press the MODE button to select AUTO.
3. Use the TEMP/TIME button to set the desired temperature (typically between 21°C/70°F and 28°C/83°F).
4. Press the ON/OFF button to start the air conditioner.

To Stop: Press the ON/OFF button again.

If AUTO mode is not comfortable, manual adjustments can be made. Fan speed is automatically controlled in AUTO mode.

Cooling/Heating/Fan Only Operation

To Start:

1. Ensure the unit is plugged in and powered. The OPERATION indicator on the indoor unit will flash.
2. Press the MODE button to select COOL, HEAT (if available), or FAN ONLY.
3. Use the TEMP/TIME button to set the desired temperature (typically between 21°C/70°F and 28°C/83°F).
4. Press the FAN SPEED button to select the fan speed: AUTO, LOW (///), MED (//////), or HIGH (/////////).
5. Press the ON/OFF button to start the air conditioner.

To Stop: Press the ON/OFF button again.

Note: For FAN ONLY mode, temperature control is not applicable. Only steps 1, 3, and 4 are needed.

Drying Operation

To Start:

1. Ensure the unit is plugged in and powered. The OPERATION indicator on the indoor unit will flash.
2. Press the MODE button to select DRY.
3. Use the TEMP/TIME button to set the desired temperature (between 21°C/70°F and 28°C/83°F).
4. Press the ON/OFF button to start the air conditioner.

To Stop: Press the ON/OFF button again.

Note: Fan speed cannot be adjusted in AUTO and DRY modes.

Timer Operation

The timer allows you to set the air conditioner to turn ON or OFF automatically.

Setting Timer ON or Timer OFF

1. Press the TIMER button. The display will show "0.0" and the TIMER ON or TIMER OFF indicator will flash.
2. Use the TEMP/TIME button to set the desired time. Increments are 0.5 hours up to 10 hours, then 1-hour increments up to 24 hours. The selected time registers after a few seconds.
3. After setting, ensure the TIMER indicator on the indoor unit display is illuminated.

Canceling Timer Settings

Press the CANCEL button to cancel any active timer setting.

Changing Timer Settings

Repeat steps 1-3 to change existing timer settings.

Cautions:

• The remote controller automatically transmits timer signals at the specified time. Keep the remote in a location where it can transmit signals properly.
• The effective operation time set by the remote controller is limited to 24 hours.

Example of Timer Setting

TIMER ON (Timer Start Operation)

This feature allows the unit to turn on automatically at a set time.

Example: To start the air conditioner in 8 hours.

1. Press the TIMER button until the TIMER ON indicator is displayed and the time flashes.
2. Use the TEMP/TIME button to display "8.0" next to the TIMER ON indicator.
3. Wait 3 seconds; the setting time stops flashing, and the function is activated.

TIMER OFF (Timer Stop Operation)

This feature allows the unit to turn off automatically at a set time.

Example: To stop the air conditioner in 6 hours.

1. Press the TIMER button until the TIMER OFF indicator is displayed and the time flashes.
2. Use the TEMP/TIME button to display "6.0" next to the TIMER OFF indicator.
3. Wait 3 seconds after releasing the TEMP/TIME button; the function is activated.

Combined Timer

You can set both ON and OFF timers simultaneously.

TIMER OFF → TIMER ON (On → Stop → Start Operation)

This feature is useful for stopping the unit overnight and starting it in the morning or upon return.

Example: Stop in 2 hours, start in 10 hours.

1. Press the TIMER button until TIMER OFF is displayed and the time flashes.
2. Use TEMP/TIME to set "2.0" for TIMER OFF.
3. Press the TIMER button again to display TIMER ON.
4. Use TEMP/TIME to set "10" for TIMER ON.
5. Wait 3 seconds; the TIMER ON time stops flashing, and the function is activated.

TIMER ON → TIMER OFF (Off → Start → Stop Operation)

This feature allows the unit to start before you wake up and stop after you leave.

Example: Start in 5 hours, stop in 8 hours.

1. Press the TIMER button; TIMER ON displays and the time flashes.
2. Use TEMP/TIME to set "5.0" for TIMER ON.
3. Press the TIMER button again to display TIMER OFF and its time.
4. Use TEMP/TIME to set "8.0" for TIMER OFF.
5. Wait 3 seconds; the TIMER OFF time stops flashing, and the function is activated.

General Cautions

1. When replacing batteries, do not use old or different types of batteries, as this may cause malfunction.
2. If the remote controller is not used for several weeks or more, remove the batteries to prevent leakage damage.
3. Battery life is approximately half a year under normal use. Replace batteries when the unit no longer beeps upon receiving a signal or the transmission indicator fails to light.
4. Ensure there are no barriers between the remote controller and the indoor unit's receiver for proper operation.
5. Keep the remote controller away from all liquids.
6. Protect the remote controller from high temperatures and radiation.
7. Keep the indoor unit's receiver out of direct sunlight to prevent malfunction.
8. Keep the controller away from Electro-Magnetic Interference (EMI) from other household appliances.

Note on Button Design and Functionality:

• Button designs may vary slightly from the model purchased; the actual shape prevails.
• If a referenced button is missing on your remote, the corresponding function is not available.
• In case of discrepancies between remote control illustrations and the USER'S MANUAL, the USER'S MANUAL description takes precedence.

Compliance Information:

This device complies with national regulations. In Canada, it complies with CAN ICES-3(B)/NMB-3(B). In the USA, this device complies with part 15 of the FCC Rules. Operation is subject to two conditions: (1) the device may not cause harmful interference, and (2) it must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy. If not installed and used according to instructions, it may cause harmful interference to radio communications. If interference occurs, the user is encouraged to try correcting it by:

• Reorienting or relocating the receiving antenna.
• Increasing the separation between the equipment and receiver.
• Connecting the equipment to a circuit different from the receiver's.
• Consulting a dealer or experienced radio/TV technician.

Changes or modifications not approved by the party responsible for compliance could void the user's authority to operate the equipment.