RDF230

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

Note

* 3-wire valve actuator can also be used for 2-pipe application with Y11 and Y12 connected and P04 configured.