Prolon M2000 SERIES Quick Start Manuals page 5

cULus Listed; UL 916 Energy Management Equipment, File E364757, Vol.1
Bottom row:
common for all inputs
Disable Boiler Call (dry contact)
Use max heat setpoint (dry contact)
Proof of pump 2 (AO1) (dry contact)
Proof of pump 1 (DO5) (dry contact)
Return water temp sensor (10K thermistor)
Supply water temp sensor (10K thermistor)
Outside air temperature sensor
NET Port: Incoming RS485 network
REV.2.0 / PL-QCK-M2000-EN
(10K thermistor)
communication (modbus)
Controller's power source
(24VAC - Class 2)
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