Airzone iQ Zone, Installation Manual, Page: 26 / 46

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PERC represents the Zone Weight. This is the Zone CFM related to the nominal CFM
delivered by the System. Given that the ductwork was designed to evenly distribute
conditioned air to every room in the house, the size of the ducts connected to a given area
will give the installer a good idea of the Zone’s CFM share. For example if the System
delivers 900 CFM (3 Ton unit), and the Zone takes 200 CFM, then the PERC will be
(200/900) x 100= 22%.
The PERC range is from 10% to 100% in steps of 1%. When scrolling with the arrow keys,
the display will show the balance of PERC remaining from 100%. Therefore if a zone was
already configured with PERC= 20, the display will show 80, and the installer has to choose
the percentage for the zone that is being configured. This is done to help the installer to
properly adjust and balance the required CFM by zone in the house. This is a very important
factor to achieve maximum comfort and efficiency from the iQ Zoning System.
When the thermostat enters into this parameter setup, the display will look like the following
When the selected value is flashing on the screen, a touch on the Airzone icon will set the
parameter, and force the thermostat to the OFF mode, exiting from the initial set up mode.
Upon entering this parameter, the thermostat will go to OFF mode. Be sure to power it on
again before proceeding to configure the next Zone control module.
10.3 Subordinate Zone Control Module Initial Set up
Once all Zone control modules with a thermostat attached to them are configured, all those
Zone control modules that are subordinated to each Master Zone control module, must be
configured. To be able to configure those Zone control modules, a thermostat has to be
temporarily connected to them.
When connecting the auxiliary thermostat it will show the same screen as before. The
ZCon
parameter in this case has to be set to Sub , with a touch on the Airzone icon. The following
parameter, same as for the Master Zone control module, will be the address
(
ZCid
).
In this
case the address available range will be from 9 to 32. Once the address is selected, the next
parameter will be
TCId .
tCId , stands for Thermostat Controller ID, or in other words, is the address of the Master
Zone control module to which this zone control module will be subordinated. When scrolling
with the arrow keys, the display will show the addresses of all the Master Zone control
modules that have a thermostat connected to it. If the Master Zone control module does not
have a thermostat connected to it at the time of the configuration, its address will not show
10
0
pErC