Catalogue

40 UV-PRC004-EN
Controls
Why Trane Controls?
Whether involved in a retrofit or in new construction applications, Trane has the control design to
fit the systems requirements. The broad range of control packages offer a range from a field
convertible end-device package, to a complete building automation system solution with LonTalk
®
controls.
The good news is Trane
®
controls are factory-mounted, -wired, -tested and configured or
programmed with Trane
®
application expertise to provide comfort, efficiency, and reliability, as
well as, single-source warranty and service. With Trane’s integrated controls, the installed costs are
lower because the equipment has turn-key factory controls and every component of the system is
optimized to fit with the controller. Trane installs not only the controller, but also the hardware that
works intimately with the controller to allow the system to function properly (i.e., piping package,
valves, dampers, actuators, etc.). When a classroom unit ventilator with Trane
®
controls arrives to
the jobsite, it is completely ready for quick installation.
Table 29. Controller input/output summary
ZN520 UC400
Binary Outputs X
3-Speed Fan X X
2-Position Hydronic Valve X X
2-Position Fresh Air Damper X
1-Stage Electric Heat X X
3-Wire Economizer Damper X X
3-Wire Hydronic Valve X X
2-Stage Electric Heat X X
Reheat (hydronic or electric) X X
Generic X
(a)
(a)The generic input and output are for use with a Tracer Summit system only.
Binary Inputs
Condensate Overflow Detection X X
Low Temperature Detection X X
Occupancy X X
Generic Input X
(a)
Analog Inputs
Zone Temperature X X
Setpoint X X
Fan Mode: Auto, High, Medium, Low X X
Entering Water X X
Discharge Air X X
Outside Air X X
Generic X
(a)
Analog Outputs
Variable speed fan X
Field supplied analog valves X
Table 30. Controller function summary
ZN520 UC400
Control Functions
Entering Water Temp. Sampling (Purge) X X
Auto Changeover X X
Fan Cycling
Warm-Up X
Pre-Cool X
Data Sharing (Master/Slave) X
Random Start X X
Dehumidification X X
Single Zone VAV X
Staged Capacity (2-Stage Electric Supplementary) X X
Other Functions
Manual Test X in TU
Maintenance Timer X X
Setpoint Limits X X
UV-PRC004-EN.book Page 40 Monday, February 4, 2013 11:01 AM