Trane Voyager Commercial, Installation, Operation And Maintenance Manual

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44 RT-SVX34R-EN
adjustable CFM setpoint value. The airflow can be
adjusted for altitude differences with the Outside
Airflow Adjustment Setpoint.
ReliaTel Dehumidification Module
(RTDM)
Figure 39. RTDM module
The RTDM provides a pulsed signal output to control
the Cooling and Reheat Modulating Valves. The RTDM
will also monitor the Entering Evaporator Temperature
as well as protect against a low refrigerant pressure in
the reheat circuit.
Conventional Thermostat Connections
(Available Only with CV)
This feature allows conventional thermostats to be
used in conjunction with the RTRM on Constant
Volume Applications only. It utilizes the conventional
wiring scheme of R, Y1, Y2, W1, W2/X, and G. Refer to
Figure 23, p. 36 for conventional thermostat
connections. Applicable thermostats to be used with
the conventional thermostat inputs are:
Table 21. Thermostats
Vendor Part # Trane Part #
Honeywell
T7300
Honeywell
T874D1082 BAYSTAT011
Enerstat MS-1N BAYSTAT003
TCI - Trane Communication Interface
(Optional)
This module is used when the application calls for an
ICS building management type control system. It
allows the control and monitoring of the system
through a Trane Tracer™ panel. The module can be
ordered from the factory or ordered as a kit to be field
installed. Follow the installation instructions that ship
with each kit when field installation is necessary.
LCI - LonTalk® Communication Interface
(Optional)
This module is used when the application calls for a
LonTalk building management type control system. It
allows the control and monitoring of the system
through a Trane Tracer Summit panel or 3rd party
LonTalk system. The module can be ordered from the
factory or ordered as a kit to be field installed. Follow
the installation instructions that ship with each kit
when field installation is necessary.
BCI - BACnet® Communication Interface
(Optional)
This module is used when the application calls for a
BACnet building management type control system. It
allows the control and monitoring of the system
through a Trane Tracer SC panel or 3rd party BACnet
system. The module can be ordered from the factory or
ordered as a kit to be field installed. Follow the
installations instructions that ship with each kit when
field installation is necessary.
WCI - Trane Air-Fi™ Wireless Comm
Interface (Optional)
The Trane® Air-Fi Wireless Comm Interface (WCI) is the
perfect alternative to Trane’s BACnet™ wired
communication links (for example, Comm links
between a Tracer™ SC and a Tracer UC400).
Minimizing communication wire used between
terminal products, zone sensors, and system
controllers has substantial benefits. Installation time
and associated risks are reduced. Projects are
completed with fewer disruptions. Future re-
configurations, expansions, and upgrades are easier
and more cost effective.
TD5 Display - 5" Touchscreen Display
The Tracer TD5 display is an optional display module
that operates in conjunction with the ReliaTel
Controller and allows you to view data and make
operational changes. More information on the Tracer
TD5 Display can be found in Installation, Operation,
and Maintenance Manual, RT-SVX49*-EN.
System Operation
Economizer Operation with a
Conventional Thermostat (CV Only)
If the ambient conditions are suitable for economizer
operation, the economizer is activated as the 1st step of
cooling from Y1. The dampers are controlled to provide
a supply air temperature of 50° F +/- 5° F. If the
economizer is disabled due to ambient conditions, the
1st stage of mechanical cooling is activated.
While economizing, if an additional stage of cooling is
activated from Y2, the 1st stage of mechanical cooling
is activated. If the economizer is disabled due to
ambient conditions, the 2nd stage of mechanical
cooling is activated.
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