Communication Configurations
Note: The Tracer ZN.520 is a | connect to a maximum of 120 |
configured controller. It will | Tracer ZN.520 controllers. |
not operate without a valid |
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downloaded configuration |
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file. |
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The Tracer ZN.520 controller sup- |
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ports ICS and |
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munications as well as stand- |
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alone operation. A number of con- |
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trol features may be configured at |
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the factory or by using the Rover |
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service tool. (See “Configuration” |
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on page32, for more information.) |
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The ICS system also allows all of the classroom unit ventilators to share information without the presence of hardwired sensors at each unit. Some typical shared points include outside air temper- ature, entering water temperature, and occupancy schedules.
Peer-to-Peer
Communications
On a
Integrated Comfort System
Note: The Tracer ZN.520 controller may only be used with Tracer Summit version
11.0or greater with a Comm5 communications card.
Classroom unit ventilators can op- erate as part of a large building au- tomation system controlled by Tracer Summit. The Tracer ZN.520 is linked directly to the Tracer Summit via a twisted pair commu- nication wire. Each Tracer Summit building automation system can
Figure 4: Communications link wire
The ICS system allows for com- plete communication with the classroom unit ventilators via Tracer ZN.520 unit controller. All points connected to the Tracer ZN.520 may be observed from the Tracer Summit
system, multiple Tracer ZN.520 controllers may share data, via a twisted pair communication wire,
without the need for a Tracer Sum- mit system. (See Figure 5: “Peer-
The Rover service tool is required to set up
Figure 5: Peer-to-peer communication connections
11 |
