RDF230MB | |
---|---|
L, N, N | AC 230 V power supply, mains and neutral |
Q1 | Fan control output (relay output), Q1-low (AC 230 V) |
Q2 | Fan control output (relay output), Q2-middle (AC 230 V) |
Q3 | Fan control output (relay output), Q3 -high (AC 230 V) |
Y11 * | SPST relay output, 2-pipe cooling/heating, or 4-pipe cooling, normally open (AC 230 V) |
Y12 * |
SPST relay output, 4-pipe heating, normally open (AC 230 V) |
X1 | Multifunctional input, e.g., sensor or switch |
M | Input reference ground for X1 |
A, B | Modbus terminals, no isolation |
REF | Modbus reference ground |
Note
* 3-wire valve actuator can also be used for 2-pipe application with Y11 and Y12 connected and P04 configured.