Air-to-Air Heat Pump Systems FAQ

• We recommend that you remove and clean the air filter every two weeks.

• After 240 hours of use the display on the head unit will flash a "CL" code. This is a reminder to clean the filter.

• Please refer to the Maintenance section of the product manual for the air filter removal and cleaning procedure.

Yes.

• If the air filter should be damaged at any point (during cleaning for example) it should be replaced with a new one.

• After 2,880 hours of use the display on the head unit will flash a "nF" code. The air filter should be replaced with a new one at this time.

• Please refer to the Maintenance section of the product manual for the air filter removal and replacement procedure.

• Check for damaged wiring.

• Check and clean air filters. If damage is found, replace the filter.

• Potential refrigerant leak. If leaking is evident please do not use the unit. We recommend that a qualified contractor be used to rectify the problem.

• Replace batteries in remote control.

• Ensure that nothing is blocking any air inlets and outlets, and that all grilles are clear of obstruction.

No, these two codes are triggered by automatic timers and are simply just reminders that it's time to carry out maintenance on the indoor head unit's air filter:

• "CL" - This is displayed every 240 hours of use and is a reminder to remove and clean the air filter.

• "nF" - This is displayed every 2,880 hours of use and is a reminder to replace the air filter with a new one.

Once you have taken the appropriate action based on which of the two codes is displayed, you must manually reset the code by doing the following:

• Press the "LED" button on your remote control 4 times, or press the "Manual Control" button 3 times.

• If the manual reset is not carried out, the code will continue to display every time you restart the unit.

The maximum length of line set that can be used between the outdoor unit and the indoor head unit depends on the specific model. For further information, please refer to the product manual .

An indoor head unit is designed to operate in one zone only (for example; A living room or a bedroom).

If you are looking to condition multiple rooms you can design a system that uses one outdoor unit that is paired to multiple indoor head units. Correct sizing and model choice for the application will be critical, so please refer to the product brochure for further details.

Yes, the indoor unit continuously circulates air as a way of determining the temperature of the room.

The fan will also speed up or down based on the settings that you have programmed.

This code may be caused by a supply voltage issue.

First thing to try is shut off the mains power supply to the equipment, wait for 10 minutes, and turn the power back on again. If the E2 is still displayed then the power supply should be tested by a qualified electrical contractor to ensure that it meets the requirements that are displayed on the rating label of the equipment.