Maintenance - Nordyne iQ Drive Installation Instructions Manual

The Outdoor Fan Does Not Shut Off When the Compressor
Does
• For normal operation the outdoor fan is designed to
run for 30 seconds after the compressor shuts off.
In Cooling, the Blower Slows Down and the Unit Is Not
Responding to Room Temperature
• Slowing of blower speed and suspension of normal
capacity control will occur when the unit goes into
Dehumidifi cation. If conditions for dehumidifi cation
persist, the unit will run cycles of 10 minutes in
dehumidifi cation, 5 minutes in normal cooling
(responding to room temperature).
The System Is In AUTO Mode, but It Won't Switch Quickly
From Heating to Cooling (or the Reverse)
• There is a confi gurable delay (Auto Changeover
Time) between operating in heating and restarting
in cooling (or the reverse) when in AUTO mode. The
default delay for this changeover is 60 minutes.
Although There Is a Large Demand At Startup, the
Compressor Only Runs at Medium Speed
• Regardless of demand the system will always start
and run at an intermediate speed for one minute.
Subsequently the speed may increase signifi cantly.
Humidifi cation or Dehumidifi cation Setpoints Are Not
Being Satisfi ed
• The fi rst priority of the system is to achieve
the temperature setpoint(s).
circumstances it will also satisfy humidity setpoints,
its ability to accomplish this is signifi cantly affected
by a variety of installation-based factors and
circumstances.
16

MAINTENANCE

Be certain the electrical power to the
outdoor unit and the furnace or air handler
is disconnected before doing the following
recommended maintenance.
•
•
•
•
While under most
IMPORTANT:
Inspect the indoor air fi lter monthly. Clean or replace it
at the start of each heating and cooling season or when
an accumulation of dust or dirt is visible. If the indoor
coil needs to be cleaned, contact a qualifi ed service
technician.
Inspect the condensate disposal line from the indoor coil
at the beginning of the cooling season to make sure it is
not obstructed.
Remove any leaves, grass clippings, and debris from
the outdoor unit coil, being careful not to damage the
aluminum fi ns. Dirt may be cleared from the coil by using
a water hose directed through the discharge fan grille
toward the outside of the unit.
Have a yearly inspection by a qualifi ed service technician
to ensure that the system is performing at its optimal
level.