Trane Tracer User Manual

VAV-SVX07B-EN 15
Wiring Installation
• Replace the control box cover after field wiring to prevent any electromagnetic interference.
•Review Tab l e 4 for factory-installed components and voltage amperage.
Table 4. Binary Load Valves
Table 3. Calculating Actual VA Requirements
Item Sub VA Draw Per I/O (24 Vac)
Maximum Total VA Draw (24
Vac)
UC400 Board
UC400 (No I/O) 8 VA
5 x AI 0.2 VA per AI 1 VA
2 x UI 0.13 VA per UI 0.25 VA
2 x PI 0.13 VA per PI 0.25 VA
3 x BI 0.17 VA per BI 0.5 VA
2 x AO 1 VA Per AO 2 VA
3 x BO (Relay) 1 VA Per Relay (No Load) 3 VA
6 x BO (TRIAC) 0.34 VA Per TRIAC (No Load) 1 VA
Subtotal for UC400; 16 VA
24 Vdc Supply
200 mA
(a)
1 VA Per 25 mA DC 8 VA
Total for UC400; 24 VA
Binary Outputs (Relay and TRIAC)
BO1 to BO3 Refer to “Device Connections,” p. 10 Refer to “Device Connections,” p. 10
BO4 to BO9 0.5 A- 12 VA@ 24 Vac 12 VA Maximum
Below is an example calculation for a cooling-only box current requirements:
Description Draw
• UC400 no I/O
• Setpoint and Zone Temperature
•Flow
• Occupancy Input
• Binary for Air Damper (only one energized at a time, not
including actuator draw)
•Total
•8 VA
•0.4 VA
• 0.13 VA
• 0.17 VA
• 0.34 VA
• 9.2 VA (Plus air damper draw)
With a Trane F Series Box: 13.2 VA Total
(a) See device connected to DC supply for current draw.
Style Volt Amps
F - Style Actuator 4 VA
Air Valve Actuator C through E Style 12 VA
Fan Power Fan Output 6 VA
Hot Water Proportional 4 VA
Hot Water 2 Position 6.5 VA
Electric Heater Magnetic Contactor 10 VA
Electric Heater Mercury Contactor 12 VA
Note: VariTrane cooling-only Series D and E models consume 20 VA (12 VA for the actuator and 8 VA for the board). The
heating output ratings remain the same.

Trane Tracer Specifications

General

Manufacturer	Trane
Memory	Varies by model
Dimensions	Varies by model
Weight	Varies by model
Model	Tracer
Communication Protocols	BACnet
User Interface	Web-based
Network Compatibility	Ethernet, RS-485
Category	Controller
Input Voltage	24 VAC
Humidity Range	non-condensing