Ingersoll-Rand ReliaTel, Manual, Page: 40 / 176

40 RT-SVD03L-EN
ReliaTel ™ ™ Option Module (RTOM)
Figure 25. ReliaTel ™ ™ option module (RTOM)
Discharge Air Setpoint
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+
Modulating Gas
Heat Output
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Fan output signal
DACR
DA Cool
Fan Speed
RTOM Location
3 to 10 Tons
The RTOM is installed in the indoor fan section. When
field installed, it comes with a short harness which
allows both ends of the unit control harness to be
attached.
12.5 to 50 Tons
The RTOM is installed in the control panel.
RTOM Inputs
J1, J2 Inputs
J1 provides 24VAC power and MODBUS
communication to and from the RTRM (via the COMM
module if used). J2 sends power and communication
to the ECA (if used).
J3 Inputs
• J3-1 to J3-2 – Allows supply air tempering when
using a mechanical ZSM. Removed = supply air
tempering enabled, installed = disabled. Supply air
tempering can also be enabled or disabled by using
the BAYSENS119* or a Trane
® ICS system.