Trane IntelliPak Installation, Operation And Maintenance Manual page 68

Installation
Demand Limit Relay (5K89)
If the unit is equipped with a Generic BAS Module (1U51),
(i.e. unit model number digit 28 is a "B", "K", or "R"), a
normally open (N.O.) switch may be used to limit the
electrical power usage during peak periods. When
demand limit is initiated, the mechanical cooling and
heating operation is limited to 50% or 100% (20-30 ton) or
25%, 50%, 75%, or 100% (40-130 ton). Demand limit can be
initiated by a dry contact closure or BAS input.These
contacts must be rated for 12 ma @ 24 VDC minimum.
Outside Air Sensor (3RT3) - (BAYSENS016*)
This device senses the outdoor air temperature and sends
this information in the form of an analog input to the RTM.
It's factory installed on units with an economizer, but can
be field provided/installed and used for informational
purposes on units without an economizer. Refer to the
appropriate illustrations in
p. 75 for the proper connection terminals in the unit
control panel. Refer to Table 31, p. 67
Resistance coefficient.
Generic Building Automation System (1U51)
The Generic Building Automation System (GBAS) module
allows a non-Trane building control system to
communicate with the rooftop unit and accepts external
setpoints in form of analog inputs for cooling, heating,
demand limiting, and supply air pressure parameters.
Generic Building Automation System Module (GBAS 0-5
VDC) - Provided for those cases where non-Tracer building
management system is used.The GBAS module provides
a binary input for Demand Limiting, four (4) analog inputs
for setpoint adjustment and five (5) relay outputs for
diagnostic reporting. Inputs can use a potentiometer or 0-
5 VDC signal.
Generic Building Automation System Module (GBAS 0-10
VDC) - Used to provide broad control capabilities for
building automation systems other thanTrane'sTracer
system.The GBAS module provides a binary input for
Demand Limiting, four (4) analog inputs for setpoint
adjustment and four (4) analog outputs as well as one (1)
relay output for diagnostic reporting. Inputs can use a
potentiometer or 0-10 VDC signal.
Refer to Figure 47 for the input wiring to the GBAS module
and the various desired setpoints with the corresponding
DC voltage inputs for both VAV and CV applications.
For complete application details of the module, refer to
Engineering Bulletin UN-PRB001-EN.
Wall or Duct Mount Humidity Sensor (5U108) -
(BAYSENS036* or BAYSENS037*)
This field-installed humidity sensor is mounted in the
space or in the return air duct, sending an analog input to
the RTM 1TB16-10 and 1TB16-11. It must be ordered/
installed for dehumidification control with modulating hot
gas reheat, but can also be used for humidification
applications.
68
Figure 40, p. 57 or Figure 47,
forTemperature vs.
Note: If the unit has Comparative Enthalpy installed and
enabled, the ECEM Return Humidity input can be
used for dehumidification/ humidification instead
of the RTM humidity input.
RT-SVX36K-EN