Trane CCRC20, Manual

Page: 69 / 101

Controls
PKG-PRC002-EN 69
We’ve redesigned the self-contained unit
with the latest control technology to make
it even better! New modular DDC
controls with human interface (HI) panel
make self-contained units more flexible
and easier to operate.
Controls are Trane-designed to work with
Trane equipment for optimum efficiency.
The factory installs and commissions
each control component to ensure simple
and reliable operation.
Furthermore, the DDC control’s modular
design allows greater application
flexibility using up to twelve different
modules, dependent upon unit options.
You can order exactly what the job
requires as options, instead of one large
control package. And since unit features
are distributed among multiple printed
circuit boards, field replacement is easy.
Depending upon unit options, IntelliPak ®
units can operate as:
1) stand-alone
2) interface with Trane’s Tracer
® building
management system
3) interface with a generic (non-Trane)
building management system.
Available Input and Output
Points
RTM Module (on all units)
Binary inputs
• Emergency stop
• External auto/stop
• Unoccupied/occupied
• Dirty filter
• VAV changeover with hydronic heat
• Units with staged heat interface have 1-
3 additional points
Binary outputs
• VAV box drive max (VAV units only)
• CV Unoccupied mode indicator (CV units
only)
• Alarm
• Fan run request
• Water pump request (water-cooled only)
• Units with staged heat interface have 1-
3 additional points
Analog input
• Airside economizer damper minimum
position
Analog output
• Outside air damper actuator
Heat Module Option
• Analog output
Generic BAS Option (GBAS)
Binary inputs
• Demand limit contacts
Binary outputs
• Dirty filter relay
• Refrigeration fail relay
• Heat fail relay
• Supply fan fail relay
• Active diagnostics
Analog inputs
• Occupied zone cooling setpoint
• Occupied zone heating setpoint
• Unoccupied zone cooling setpoint
• Unoccupied zone heating setpoint or
minimum outside air flow setpoint
• Supply air cooling setpoint
• Supply air heating setpoint
• Supply air static pressure setpoint
Comparative Enthalpy Module (ECEM)
Option
Analog inputs
• Return air temperature
• Return air humidity
Ventilation Override Module (VOM)
Option
Binary inputs
• VOM mode A, unit off
• VOM mode B, pressurize
• VOM mode C, exhaust
• VOM mode D, purge
• VOM mode E, purge w/duct pressure
control
Binary output
• V.O. relay
Tracer ® Interface (TCI ) option
Binary input
• Enthalpy enable airside economizer
Binary outputs
• Compressor on/off status
• Ventilation status
• Condenser water flow status
• Heat status
Analog outputs
• Supply air pressure
• Supply air temperature
• Suction temperature of each circuit
• Entering economizer water
temperature
• Zone temperature
• Entering condenser water temperature
• Supply air temperature reset signal
• Morning warmup sensor temperature
• Entering air temperature
Analog inputs
• Cooling and heating setpoints
• VAV discharge air temperature
setpoints
• Supply air pressure setpoint
• Cooling and heating enable/disable
• Air economizer enable/disable
• Airside economizer minimum position
• Unit priority shutdown
Signature Series Self-Contained Units