Things that are normal
Normal Operating Sounds
S
ENCE
You may hear a pinging noise caused by water being picked up and thrown against
remove moisture and improve efficiency.
change the room temperature.
may overflow and drip from the outdoor side of the unit.
on and off with the compressor. You may also hear a fan noise stop and start.
regardless if the unit may be cooling or heating. Other times the fan will run longer
improve room comfort and balance.
continuously.
Digital makeup air unit will perform a system check upon power up, power cycle,
then go to the set point.
3-minute delay.
During the defrost cycle, both indoor and outdoor fans stop and the compressor will
operate in the cooling mode to remove frost from the outdoor coil. After defrost, the
unit will restart in electric heat to quickly warm the room to the desired comfort level.
minimum of 3 minutes after the compressor starts at any thermostat setting.
49-5000640 Rev. 2