Ingersoll-Rand ReliaTel, Manual, Page: 97 / 176

RT-SVD03L-EN 97
Thermostats and Sensors
Protocol of Communications
It is possible, though not recommended, to connect
multiple control devices to a ReliaTel
™ system. The
terminal strip is arranged such that simultaneous
connection of ICS communication (Tracker
® , Tracer ® ,
Summit, VariTrac ® ), mechanical zone sensor module
(ZSM), programmable zone sensor, and a conventional
thermostat is possible. Of course, only one device can
control the unit at a time. Following is a protocol of
communication; if communication fails, the RTRM
seeks the next lower priority level device. If no device is
connected, the unit will not run except during the TEST
MODE.
• Highest priority - ICS (Tracker
®
, Tracer
®
, Summit,
VariTrac ® ) - Using BAYSENS013, 014, 017 as
needed
• Next priority - Programmable Zone Sensor
(BAYSENS019, AYSTAT666, BAYSENS020)
• Next priority - Mechanical ZSM (BAYSENS006-11B,
AYSTAT661-664)
• Least priority - Conventional Thermostat (R, G, Y,
W, C)
It is possible to connect multiple devices. Doing so
increases the chance for error in application and
troubleshooting.
N No otte e:: 27.5 to 50 tons VAV conventional thermostat
inputs do not work and are ignored by the RTRM.
On power up, the RTRM looks for a zone temperature
input (J6-1, J6-2). If it doesn’t see one, it then ignores
zone sensor inputs and looks for thermostat (RGYW)
inputs.
However, if the unit does see a valid zone temperature
input on startup then the thermostat (RGYW) inputs are
ignored. A programmable zone sensor will take priority
over either input when connected, and an ICS system
takes the highest priority.
Table 70. Thermostat and sensor descriptions
Accessory Model #
Zone Sensor Module
Description
Required #
Conductors
Terminal Connections at
J6
Heat/Cool
BAYSENS106*/ASYSTAT106*
Single Set Point/Manual
change Over
4
1,2,3,4
BAYSENS108*
Dual Set Point Manual/Auto
Change Over
5
1,2,3,4,5
BAYSENS110*/ASYSTAT111*
Dual Set Point with LEDs
Manual/Auto Change Over
10
1,2,3,4,5,6,7,8,9,10
BAYSENS119*/ASYSTAT666*
Programmable with Night
Setback and LCD Indicators
3-7
7,8,9,10,11,12,14 (7-10 are
optional)
BAYSENS077* Remote Sensor 2
1,2
BAYSENS135*/ASYSTAT709A
Digital Dual Setpoint with
Manual /Auto Changeover
11
1,2,3,4,5,6,7,8,9,10
Heat Pump
BAYSENS107*/ASYSTAT107*
Single Set Point Manual
Changeover
6
1,2,3,4,5,6,7
BAYSENS109*/ASYSTAT109*
Dual Set Point with LEDs
Manual/Auto Changeover
10
1,2,3,4,5,6,7,8,9,10
BAYSENS019*/ASYSTAT666*
Programmable with Night
Setback and LCD Indicators
3-7
7,8,9,10,11,12,14 (7-10 are
optional)
BAYSENS077* Remote sensor 2
1,2
BAYSENS031*
Digital Heat Pump Dual
Setpoint with Manual/Auto
Changeover
11
MZVAV 27.5 to 50 tons
BAYSENS119*
Programmable with Night
Setback and LCD indicators
3-7
7,8,9,10,11,12,14 (7-10 are
optional)
BAYSENS021
VAV Setpoint Panel w/LED’s
9
1,2,3,4,6,7,8,9,10
Tracer®/Tracker® ICS
BAYSENS073*
Override Sensor with Override
/ Cancel
2
1,2
BAYSENS074*
Override Sensor with Setpoint
and Override / Cancel
3 1,2,3