Trane Tracer UC400 User Manual

14
BAS-SVX48H-EN
Table 5. Factory Programmed Terminations (continued)
Inputs/Outputs/Communication
Terminations
Factory Programmed Assumed Terminations
Binary Outputs (TRIAC)
BO4
Cooling, 2-Position Cooling, 3-Wire Floating Point Open Compressor 1
BO5
• Cooling, 3-Wire Floating Point Close
• Compressor 2
• Heating, 2-Position
(a)
BO6
• Heating, 2-Position
• Heating, 3-Wire Floating Point Open
• Electric Heat Stage 1
• Face and Bypass Damper Open
BO7
• Heating, 3-Wire Floating Point Close
• Electric Heat Stage 2
• Face and Bypass Damper closed
• Reversing Valve
BO8
• Outside Air Damper, 2-Position
• Economizer, 3-Wire Floating Point Open
BO9
Economizer, 3-Wire Floating Point close
Analog Outputs/Binary Inputs
AO1/BI4
• Frost protection Status
• Cooling, Analog valve
AO2/BI5
• Fan Status
• Heating, Analog Valve
• Heating, SCR Modulating Electric Heat
Communication IMC
ECM Engine Module
Pressure Inputs
PI1 Unused
PI2 Unused
(a)
For face and bypass damper control applications.
Binary Inputs
The UC400 Controller has three (3) binary inputs and two (2) analog outputs/binary inputs
(labeled BI1 through BI5), that can be configured as either analog outputs or binary inputs. Each
binary input associates an input signal of 0 Vac with open contacts and 24 Vac with closed
contacts. If changes are required, use the Tracer TU service tool to unlock the points on and
configure each of the inputs as normally open (NO) or normally closed (NC).
BI1; Occupancy
Occupancy BI1 saves energy by spreading space temperature setpoints when the zone is
unoccupied. Used as an occupancy input, BI1 has two (2) related functions:
• It changes the mode from occupied to occupied standby for controllers receiving a BAS-
communicated occupancy request.
• It can be hard wired to a binary switch or time clock to determine the occupancy mode as
either occupied or unoccupied for stand-alone controllers.
BI2; Condensate Overflow
Condensate Overflow BI2 prevents the condensate drain pan from overflowing and causing
water damage to the building. If BI2 is wired to a condensate overflow switch, and the level of
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Trane Tracer UC400 Specifications

General

Brand	Trane
Model	Tracer UC400
Category	Controller
Language	English