Airzone iQ Zone, Installation Manual, Page: 9 / 46

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4. ZONING SYSTEM OPERATION
Some important characteristics of the iQ Zoning System are:
A) It operates with 12 VDC
B) It runs a single 4 conductor, stranded and shielded cable to all system elements
C) The dampers are powered open/powered close
D) The way the Airzone Controller communicates with the Zone Control Modules is based
on a communication protocol.
E) It communicates with the iQ Controller over two data wires.
Because of the flexibility of the Zoning System, and the High Performance objectives, each
zone requires the setting of some basic parameters in order to activate the system. Those
parameters must be set by the installer at the initial power on of the Zoning System and before
enabling the Zoning from the iQ Controller. Those basic parameters will indicate:
1) if the Zone Control Module will be a Master or Subordinate
2) the Zone Control Module address
3) Zone weight for a Master Zone Control Module
4) Master Zone number if the Module is defined as a Subordinate.
Each individual Zone Control Module requires a different address to be able to communicate
with the Airzone Controller. Zone Control Modules that will have a Thermostat connected to
them will have addresses ranging from 1 to 8, and they are called “Master Zone Control
Module”, while Zone Control Modules that will follow a given Master Controller, will have
addresses ranging from 9 through 32. Those Zone Control Modules are called “Subordinate
Zone Control Modules”.
While the Master Zone Control Module will have stored the Zone Weight, the Subordinate
Controller will store the Address of the Master Zone Controller to which it is subordinated.
Subordinate Zone Control Modules have to be used when a given zone requires the use of
more than one damper, because of the ductwork layout. In such a situation, to allow the whole
zone to be properly conditioned, all dampers will need to be controlled by the single Thermostat
connected to the Master Zone Control Module.
5. WIRING
The Zoning System wiring is very simple, but great care must be taken during its lay out and
connection. All wiring must be laid out with Plenum Cable, AWG20, Shielded type Belden
6402FE or equivalent. The cable should NOT be stapled in place. If it is required to have the
cable fixed to any part of the building structure, clamps with cable protection should be used.
DO NEVER strangle the cable.
Failure to follow these recommendations may result in an unreliable installation that will
seriously affect the operation of the iQ Zoning system.
Improper wiring is one of the two major causes of installation problems. Care must be taken in
following the cable or connector colors table, shielding, tightening of connector screws, short
circuits, etc.