Things that are normal
Normal Operating Sounds
"CLICK"
SILENCE
COMPRESSOR
PROTECTION
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You may hear a pinging noise caused by water being picked up and thrown against
the condenser on rainy days or when the humidity is high. This design feature helps
remove moisture and improve efficiency.
You may hear relays click when the controls cycle on and off or are adjusted to
change the room temperature.
Water will collect in the base pan during high humidity or on rainy days. The water
may overflow and drip from the outdoor side of the unit.
The indoor fan runs continuously when the unit is operating in the cooling mode,
unless the Smart Fan Auxiliary Control is set to cycle. This will cause the fan to cycle
on and off with the compressor. You may also hear a fan noise stop and start.
There are times when the fan on the unit will run even when the unit is not heating
or cooling. If the system is set up to be in continuous fan the indoor fan will run
regardless if the unit may be cooling or heating. Other times the fan will run longer
than the heating/cooling cycle or kick on occasionally. This is normal and is done to
improve room comfort and balance.
If the unit is equipped with a make-up air ventilation system, fans will run
continuously.
Digital makeup air unit will perform a system check upon power up, power cycle,
and once every 7 days if the unit is in occupancy mode. The system check lasts
approximately 45 seconds. During this time the fans will speed up, slow down and
then go to the set point.
You may notice a few minutes delay in starting if you try to restart the Zoneline too
soon after turning it off or if you adjust the thermostat right after the compressor has
shut off. This is due to a built-in restart protector for the compressor that causes a
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.
To protect the compressor and prevent short cycling, the unit is designed to run for a
minimum of 3 minutes after the compressor starts at any thermostat setting.
49-5000561 Rev. 1