How does my Panasonic heat pump work in heating mode?
Unlike A/C mode, you do not have full control over the indoor unit fan in heating mode. In heating mode, the fan will not come on until the coil temperature is above 32 C / 90 F. If, at any point in the heating mode, the coil temperature drops below 32 C / 90 F, the fan will shut off.
For the best operation in the heating mode, we recommend setting the fan to Auto mode; this will let the fan run at the same speed as the outdoor unit. The heat pump can vary the fan speed by itself and will prevent the fan from always coming on and off.
This function prevents you from feeling cool and ensures that only warm air comes out in heating mode.
The green light will flash when you turn your heat pump to heating mode. This is standby mode and can last up to five minutes. The heat pump is warming up!
Auto air swing: The horizontal flap is fixed at a predetermined position in heating mode, and the vertical flaps swing left/right after the temperature rises.
Our saying in the winter season is set it and forget it! We do not recommend turning it off and on during the colder temperatures.
**IMPORTANT: WHEN THE WEATHER BECOMES VERY COLD (Below -10C)
Keep in mind your heat pumps are your secondary source of heat. Heat pumps need to enter defrost mode more often as the temperature drops further below freezing. On very cold days you must have your primary source of heat on and we recommend setting it 2 to 3 C below your heat pump temperature for ideal operation. Leave your heat pump set to the desired temperature in heating mode and the fan speed set to auto as usual.