Trane Round In/Round Out Lista de partes Pagina 94

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94 VAV-PRC011M-EN
DDC Controls
The controller monitors zone temperature setpoints, zone temperature and its rate of change and
valve airflow (via flow ring differential pressure). The controller also accepts an auxiliary duct
temperature sensor input or a supply air temperature value from Tracer™ SC. Staged electric heat,
pulse width modulated electric heat, proportional hot water heat or on/off hot water heat control
are provided when required. The control board operates using 24-VAC power. The Trane L
ONMARK
DDC-UCM is also a member of the Trane Integrated Comfort™ systems (ICS) family of products.
When used with a Trane Tracer SC or other Trane controllers, zone grouping and unit diagnostic
information can be obtained. Also part of ICS is the factory-commissioning of parameters specified
by the engineer (see “Factory-installed vs. Factory-commissioned,” p. 10 for more details).
Note: Trane L
ONMARK
®
DDC-UCM controllers can also take advantage of factory-commissioned
quality on non-Trane systems through L
ONMARK open protocol.
Specifications
Supply Voltage
24 VAC, 50/60 Hz
Maximum VA Load
No Heat or Fan
8 VA (Board, Transducer, Zone Sensor, and Actuator)
Note: If using field-installed heat, 24 VAC transformer should be sized for additional load.
Output Ratings
Actuator Output:24 VAC at 12 VA
1st Stage Reheat:24 VAC at 12 VA
2nd Stage Reheat:24 VAC at 12 VA
3rd Stage Reheat:24 VAC at 12 VA
Binary Input
24 VAC, occupancy or generic.
Auxiliary Input
Can be configured for discharge or primary air temperature sensor.
Operating Environment
32 to 140°F, (0 to 60°C)
5% to 95% RH, Non-condensing
Storage Environment
-40 to 180°F (-40 to 82.2°C),
5% to 95%RH, Non-Condensing
Physical Dimensions
Width: 5.5" (139.7 mm)
Length: 4.5" (69.85 mm)
Height: 2.0" (44.45 mm)
Connections
1/4" (6.35 mm) Stab Connections
Communications
L
ONMARK – Space Comfort Control (SCC) profile with FTT-10 transceiver.
22 awg. unshielded level 4 communication wire.
Heat Staging
Staged electric, proportional or two-position hot water or pulse-width modulation.
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