Turning The System Off (All Models); System Pressure Relief; Maintenance - Aprilaire 6202 Owner's Manual

Turning the System Off (All Models)

In order to shut off the system and prevent the Aprilaire
Control Panel from turning on your equipment, you need to
set ALL of your thermostats to the OFF mode. Depending on
your thermostats, this is done manually with a slide switch on
your thermostat's sub-base or with a digital push button. Consult
the Owner's Manual for your particular thermostat.
If leaving the home for a long period of time, set the Zone 1
thermostat to the Heat mode and adjust the set point to a
temperature that will prevent freezing in all areas of the home.
It is not recommended to turn off all thermostats for extended
periods in climates where freezing temperatures may occur.

System Pressure Relief

With a Zone Control System, some form of pressure relief
must be designed into the system to assure proper operation
and reduce the possibility of noise due to airflow. The method
of pressure relief that has been designed into your system
could include use of a bypass damper or the Zone Control
strategy of controlled pressure relief. With the Zone Control
strategy, a predetermined amount of air is allowed to pass
through a closed damper. The amount of air that is passed by
each damper (the bypass) is not enough to cause a noticeable
temperature change in a non-calling zone, but is enough to
relieve the higher system pressures.
So, if you feel small amounts of air entering into a non-
calling zone, what you are feeling is the bypass air.
Remember, this bypass is normal and provides pressure
relief for the system without causing a noticeable change
in temperature within that zone.

Maintenance

Once your Aprilaire Zone Control System is properly installed,
there is no maintenance required.