Trane IntelliPak 2 Series, Инструкция по установке, эксплуатации и обслуживанию

Страница: 85 / 220

RT-SVX24Q-EN 85
External Stop Input
A normally closed (N.C.) switch wired to the RTM may
be used during emergency situations to shut down all
unit operations. When opened, an immediate
shutdown occurs. When the contacts are closed, the
unit will resume normal operation after minimum
delays have occurred. Refer to the appropriate
illustrations in
Figure 59, p. 86 for the proper
connection terminals in the unit control panel.
Occupied/Unoccupied Contacts
To provide Night Setback control if a remote panel
w
wiitth h N NS SB B was not ordered, a field supplied contact
must be installed. This binary input provides the
Occupied/Unoccupied status information of the
building to the RTM. It can be initiated by a time clock,
or a Building Automation System control output. The
relay’s contacts must be rated for 12 ma @ 24 VDC
minimum. Refer to the appropriate illustrations in
Figure 63, p. 90 and Figure 62, p. 89 for the proper
connection terminals in the unit control panel.
Demand Limit Relay
If the unit is equipped with a Generic BAS Module, 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 either 50% or 100%.
Demand limit can be initiated by a toggle switch
closure, a time clock, or an ICS™ control output. These
contacts must be rated for 12 ma @ 24 VDC minimum.
Outside Air Sensor (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
Figure 63, p. 90 and Figure 62, p. 89 for the proper
connection terminals in the unit control panel. Refer to
Table 43, p. 84 for Temperature vs. Resistance
coefficient.
Generic Building Automation System
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 the form of analog inputs for
cooling, heating, demand limiting, and supply air
pressure parameters.
Refer to Figure 63, p. 90 and Table 44, p. 90 for the
input wiring to the GBAS module and the various
desired setpoints with the corresponding DC voltage
inputs for VAV, SZVAV and CV applications.
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