Carrier VAV Zone II, Installation And Startup Manual

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Sequence of operation
VAV Zone II Controllers CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
48
The VAV Zone II supports 3 types of pressure-independent terminal configurations:

Single duct

Series fan-powered

Parallel fan-powered
The controller can operate as part of a linked system (VAV or VVT) or as a stand-alone controller.
Temperature sensors
The VAV Zone II supports the following temperature sensors:
Sensors Notes
Space temperature sensors:

Wireless Standard or Plus
1 You can average up to 5 wireless sensors.

ZS Standard, Plus, Pro 2
You can average up to 5 ZS sensors - a combination of temperature,
humidity, and/or CO
2 sensors.

T55 3
Push the sensor's override button from 2 to 10 seconds to initiate a
timed override.
If a network space temperature value is used, that value must be written
to the BACnet space temperature point (system_spt) at 1 to 5 minute
intervals or on a COV of 0.1 °F (.06 °C).
Supply Air Temperature (SAT)
sensor If the zone has ducted reheat, install an SAT sensor downstream of the
reheat source. The SAT is used in controlling the reheat.
If heat is not supplied, install the SAT sensor in the duct on the terminal's
leaving air side.
The SAT determines the air source mode should Linkage communication
fail or if the controller is stand-alone. See
Air Source Mode Determination
(page 57) for details.
1 To configure the control program for the desired user interaction with the sensor, see the Wireless Sensors
Application Guide . For detailed instructions, see the Wireless Sensors Installation Guide .
2 For basic user instructions, see the ZS Sensor User Guide . For detailed installation instructions, see the ZS
Sensors Installation Guide .
Sequence of operation