Trane IntelliPak with Symbio 800 Programming Manual page 84

Troubleshooting
Diagnostics Target
Comm Loss: External
Unit
Auto Stop
Comm Loss: EXV 1
CktX
Circuit
where X = "1" or "2"
Comm Loss: Final Filter
Unit
Pressure Sensor
Comm Loss: Heat
Control Board Manf X
Heat
where X = "1" or "2"
Comm Loss: Heat Ctrl
Heat
Board Manf 1 Server
Comm Loss: Hot Gas
Circuit
Bypass Valve Ckt1
Comm Loss: Local BAS
Unit
Interface
84
Severity Persistence
Immediate
Latching
Shutdown
Immediate
Latching
Shutdown
Warning Non-Latching
Warning Non-Latching
Warning Non-Latching
Immediate
Latching
Shutdown
Warning Non-Latching
Condition / Response
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Unit operation is terminated immediately.
Circuit X is inhibited.
Continual loss of communication between the
Symbio™ 800 and the EXV has occurred for a 30
second period, or EXV Steps Maximum Position has
not been received.
If EXV Steps Maximum Position has not been
received, the controller will periodically request EXV
Steps Maximum Position, since it is only transmitted
upon request.
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
No unit response.
Continual loss of communication between the
Symbio™ 800 and the MODBUS
control board) has occurred for a 30 second period.
All burners on the manifold are locked out.
Staged Gas Heat control boards only.
No serial communication with the 1285's own
®
MODBUS server control board the manifold.
Any subsequent burners on that manifold are also
locked out. Any prior burners that exist on that
manifold are allowed to continue running.
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period, OR Hot Gas Bypass Valve Steps
Maximum Position has not been received.
If Hot Gas Bypass Valve Steps Maximum Position has
not been received, the controller will periodically
request Hot Gas Bypass Valve Steps Maximum
Position, since it is only transmitted upon request.
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Use last valid BAS setpoints.
Diagnostic is cleared when successful communication
is established with the LonTalk
®
BACnet LLID (BCIC).
Reset Level
Remote
Remote
Remote
®
Server (heat
Remote
Remote
Remote
Remote
®
LLID (LCIC) or
RT-SVP011E-EN