86 RT-SVP011E-EN
Troubleshooting
Comm Loss: Return Air
Humidity
Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 - 35 second period.
This drives a ‘fall back’ response to economizer
enthalpy decision.
Remote
Comm Loss: Return Air
Te
mperature
Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 - 35 second period.
This drives a ‘fall back’ response to economizer
enthalpy decision, and possibly Rapid Restart
control.
Remote
Comm Loss: Space CO2 Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Demand Control Ventilation (DCV) is disabled.
Remote
Comm Loss: Space
Humidity
Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 - 35 second period.
Dehumidification and humidification will be disabled.
Remote
Comm Loss: Space
Pressure
Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Statitrac control is disabled. Relief damper and fan
control falls back to outside air damper tracking.
Remote
Comm Loss: Space
Temp Cooling Stpt
Wired
Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Space Temp Cooling Stpt Active should fall back to
Space Temp Cooling Stpt Default.
Remote
Comm Loss: Space
Temp Heating Stpt
Wired
Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Space Temp Heating Stpt Active should fall back to
Space Temp Heating Stpt Default.
Remote
Comm Loss: Space
Temperature
Unit Warning Non-Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Multi-zone: If Space Temperature Active is invalid, all
functions requiring space temperature will be
inhibited.
Single-zone: Unit operation is inhibited.
Remote
Comm Loss: Staged
Electr
ic Heat Relay X
where X is “1”, “2”, “3”
or “4”
Unit
Normal
Shutdown
Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
All heating will be inhibited. The unit will provide
sup
ply fan operation for ventilation.
Remote
Comm Loss: Suction
Pressure CktX
where X is “1” or “2”
Circuit
Immediate
Shutdown
Non-Latching
Continual loss of communication between the
S
ymbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Circuit X operation is inhibited.
Remote
Comm Loss: Suction
Temperature 1 CktX
where X is “1” or “2”
Circuit
Immediate
Shutdown
Latching
Continual loss of communication between the
Symbio™ 800 and the LLID/Hex IO has occurred for
a 30 second period.
Circuit X operation is inhibited.
Remote
Diagnostics Target Severity Persistence Condition / Response Reset Level
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