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Pg. 15
Use DIP switch S6 located on the side of thermostat
to select BMS (A,B) network protocol:
- S6 ON – BACnet
- S6 OFF - MODBUS
BMS – BACnet/Modbus (Chroma-FP-OD-AB only!)
BACnet
Modbus
Temperature
Sensor error
“SensErr 2” Will appear on display.
Slaves
communication
error
Aux1 - Slaves communication error
“Aux1” and “00” Will appear on display.
Slaves – Communication error
Temperature sensor readings is out of reliable measuring range
Low temperature readings: Ambient temperature < -31°F/-35°C
High temperature readings: Ambient temperature > 91°F/35°C
2
Temperature readings and Communication errors
Temperature sensor is not connected or short circuit
Chroma-FP-OD Series
Owner’s manual & Technician Settings
1-800-443-2640
www.chromalox.com
“SensErr” Will appear on display with internal sensor fault .