Connection; Connection Terminals - Lutron Electronics LR-HVAC-230-S Setup Manual

Connection

Connection terminals

Room Thermostat, LR-HVAC-230-S, Application and Set-Up Guide
MUX MUX COM
L, N Operating voltage 230 V~
Q1 Control output "Fan speed 1 230 V~"
Q2 Control output "Fan speed 2 230 V~"
Q3 Control output "Fan speed 3 230 V~"
Y11,Y21 Control output "Valve" 230 V~ (N.O., for normally closed
valves), output for compressor or output for electrical
heater
X1, X2 Multifunctional input for temperature sensor or potential-free
switch
Factory setting:
X1 = Operating mode switchover contact
X2 = External sensor
(function can be selected via parameter P38 / P40).
M Measuring neutral for sensor and switch
MUX RS485 Modbus connection
_
RS485 Modbus connection
COM RS485 Modbus signal / common ground
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