Basic Documentation

217/332
Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Frost protection (basic types A and P) 03.10.2011
17.4 Connection diagrams
You can connect a frost protection unit to the input. The monitor must be connected
according to the following diagram:
G
G
G0
X...
G0
N
3140A06
AC 24 V
M
F3
T
X... M
You can connect an active temperature sensor with a DC 0…10 V = 0…15 °C
signal to the input: The sensor must be connected according to the following
diagram:
G
G
G0
G0
N
3140A07
AC 24 V
X... M
G1
B3
B
MG
You can connect a passive LG-Ni 1000 temperature sensor to the input. The
sensor must be connected according to the following diagram:
G
G
G0
X... M
G0
B3
N
3140A08
AC 24 V
B3 QAF63… frost sensor (air)
B3 QAE26.9 immersion temperature sensor (water)
F3 QAF81 frost protection unit (air)
N Universal controller RMU7..B
Connection diagram,
frost protection unit
Connection diagram, air
Connection diagram,
water
Key for the connection
diagrams