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SYSTXNNRCT01: Installation Instructions
1. Remove cover to access mounting holes.
2. Mount back plate to wall using screws and wall anchors provided.
3. Level back plate and tighten screws.
CAUTION
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
Improper wiring of the ABC connector will cause the system to operate
improperly. Check to make sure all wiring is correct before proceeding
with installation or turning on of power.
Connect Communicating Systems
Connect the A, B, and C wires from the communicating system to
terminals labeled A1, B1, and C1. Connect the second communicating
system (if present) to the terminals labeled A2, B2 and C2.
ABC bus wiring only requires a three-wire connection; however, it is
good practice to run thermostat cable greater than three wires in the
event of a damaged or broken wire during the installation.
It is recommended that the following color-code be used when wiring
each ABC connector:
A - Green
B - Yellow
C - White
NOTE: The D-wire (red- 24VAC hot) from the communicating
system is NOT connected to the Remote Access Module.
It is not mandatory that the above color code be used, but each ABC
connector in the system MUST be wired consistently.
RS-232 Connector – Home Automation System
Interface
An RS-232 port has been provided for connection to home automation
equipment. Consult your home automation supplier for support. If the
particular home automation supplier needs information for the interface,
you may supply the latest version of the SAM Remote Access Interface
Specification, found on HVACpartners, to the home automation supplier.
Designing and providing the interface to the communicating system
through the RS-232 communication port on the Remote Access Module
is the responsibility of the home automation supplier. Contact your
Distributor Service Manager for details, if required.
Connect Power Source
A field-supplied 24VAC 40VA transformer is required to power the
Remote Access Module. An accessory plug-in transformer is available
to order through the Replacement Components group (part No.
SYSTXNNXFM01).
The accessory plug-in transformer is heavy. Make sure it is secured to
the power outlet with an appropriate screw through the base on the
transformer.
NOTE: Do NOT connect the "D" communication bus wire (24VAC hot)
from the communicating system to the Remote Access Module. This
may cause damage to the Remote Access Module, the comunicating
system, or both.
System Start-Up
The communicating system wall control will automatically find the
Remote Access Module at system power on during the system
self-installation sequence. If the Remote Access Module (aka SAM
"System Access Module") is being added to an existing system, initiate a
full system re-install sequence to ensure that the SAM is discovered
properly.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Data A
Data B
24AC (Com)
The wall control will enter the system installation screens automatically
and will display the Equipment Summary screen when finished. For the
newer communicating systems, the word SAM will appear toward the
bottom right of the Equipment Summary screen.
If SAM is not displayed on the Equipment Summary screen, or if "no
SAM" is displayed in the communicating Equipment Summary screen,
check connections to the ABC wires as well as ensure the Yellow LED is
lit on the Remote (this ensures the module has power). The Green LED
will be lit next to each ABC connection if the User Interface has
established communications.
NOTE: The Yellow Status LED may begin to flash status codes when
used with newer generation communicating systems. This is due to the
fact that the network interface within the SAM enclosure was removed
for this model. The following status codes should be ignored when using
the Remote Access Module with newer generation communicating
controls:
Code 61: Radio out of range
Code 62: Loss of communication with radio or Ethernet device
Code 63: Radio not registered
Code 66: Ethernet/Wi-Fi not detected
Code 67: No communication with server
Troubleshooting
FAULT INDICATORS - Under normal operation, the Yellow and Green
LED will be on continuously (solid). If the Remote Access Module does
not receive communications with the communicating system, the green
LED will not be on. If there are faults present, the yellow LED indicator
will blink a two-digit status code. The first digit will blink at a fast rate,
the second at a slow rate.
NOTE: When the SAM is used with the newer communicating systems,
it may display status codes that are unique to the previous generation
UID/UIZ systems, but are irrelevant when the Remote Access Module is
used with the newer communicating systems. These codes should be
ignored. See below.
Status
Description
Code
45
Board Failure
Loss of communication
62
with Ethernet device
64
Auxiliary sensor active
Ethernet network not
66
detected
No communication with
67
server
NOTE: The 62, 66 and 67 status codes should be IGNORED for newer
generation communicating systems.
2
Resolution
Remote Access Module
Replace
Ignore fault. No action required.
Auxiliary sensor terminals are
shorted by external device.
Ignore fault. No action required.
Ignore fault. No action required.
.
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