General Information
RT-SVX46G-EN
11
temperature sensing (uncovered). Wiring procedures vary
according to the particular application and equipment
involved. Refer to the unit’s wiring diagrams for proper
connections.
Remote Zone Sensor (BAYSENS073*)
This electronic sensor features remote zone sensing and
timed override with override cancellation. It is used with a
Trane Integrated Comfort™ building management
system.
Remote Zone Sensor (BAYSENS074*)
This electronic sensor features single setpoint capability
and timed override with override cancellation. It is used
with a Trane Integrated Comfort™ building management
system.
Remote Zone Sensor (BAYSENS077*)
This electronic sensor can be used with BAYSENS106*,
108*, 110*, 119* Remote Panels. When this sensor is wired
to a BAYSENS119* Remote Panel, wiring must be 18 AWG
Shielded Twisted Pair (Belden 8760 or equivalent). Refer to
the specific Remote Panel for wiring details.
RLCI - ReliaTel™ LonTalk® Communication
Interface (Optional)
This module is used when the application calls for an
ICSTM building management type control system that is
LonTalk®. It allows the control and monitoring of the
system through an ICS panel. The module can be ordered
from the factory or ordered as a kit to be field installed.
Follow the installation instruction that ships with each kit
when field installation is necessary.
RTCI - ReliaTel™ Trane Communication
Interface (Optional)
This module is used when the application calls for an
ICSTM building management type control system. It
allows the control and monitoring of the system through
an ICS panel. The module can be ordered as a kit to be field
installed. Follow the installation instruction that ships with
each kit when field installation is necessary.
RTOM - ReliaTel™ Options Module (Standard)
The RTOM monitors the supply fan proving, clogged filter,
supply air temperature, exhaust fan setpoint, supply air
tempering, Frostat™, smoke detector, and Variable Speed
Fan Control (17 Plus units only). Refer to system input
devices and functions for operation.
Single Zone Variable Air Volume (Standard),
Displacement Ventilation (Optional)
This sensor offers full supply fan modulation across the
available airflow range. In addition to full supply fan
modulation, the unit controls the discharge air
temperature to a varying discharge air temperature
setpoint in order to maintain space temperature.
Smoke Detector Sensor (Optional)
This sensor provides high limit “shutdown” of the unit and
requires a manual reset. The sensor is used to detect
smoke in the air conditioning or ventilation ducts.
Note:
Consult smoke detector manufacturer if daisy
chaining is required.
The supply air smoke detector samples supply air. The
return and plenum air smoke detectors sample return air.
The smoke detectors are designed to shut off the unit if
smoke is sensed. This function is performed by sampling
the airflow entering the unit at the return air opening.
Follow the instructions provided below to assure that the
airflow through the unit is sufficient for adequate
sampling. Failure to follow these instructions will prevent
the smoke detectors from performing its design function.
Airflow through the unit is affected by the amount of dirt
and debris accumulated on the indoor coil and filters. To
insure that airflow through the unit is adequate for proper
sampling by the return air smoke detector, complete
adherence to the maintenance procedures, including
recommended intervals between filter changes, and coil
cleaning is required.
Periodic checks and maintenance procedures must be
performed on the smoke detector to insure that it will
function properly. For detailed instructions concerning
these checks and procedures, refer to the appropriate
section(s) of the smoke detector Installation and
Maintenance Instructions provided with the literature
package for this unit.
In order for the supply air smoke detector or return air
smoke detector to properly sense smoke in the supply air
stream or return air stream, the air velocity entering the
smoke detector unit must be in accordance with
manufacturers recommended airflow limits.
Status Inputs (4 Wires Optional)
The ZSM can be wired to receive four (4) operating status
signals from the RTRM (HEAT, COOL, SYSTEM “ON”,
SERVICE).
Four (4) wires from the RTRM should be connected to the
appropriate terminals (7, 8, 9 and 10) on the ZSM.
Supply Fan Failure Input (Optional)
The Fan Failure Switch can be connected to sense indoor
fan operation:
FFS (Fan Failure Switch) If air flow through the unit is not
proven by the differential pressure switch connected to
the RTOM (factory set point 0.07-inch w.c.) within 40
seconds nominally, the RTRM will shut off all mechanical
operations, lock the system out, send a diagnostic to ICS,
and the SERVICE output will flash. The system will remain
locked out until a reset is initiated either manually or
through ICS.
