Technical Instructions MXG461 Series Modulating Control Valve
Document Number 125-4461 with Magnetic Actuator
May 3, 2006
Page 10 Siemens Building Technologies, Inc.
This example shows only a schematic diagram, without installation-specific details.
Application
Examples
CAUTION:
1. Use the valve only as a mixing or straight-through valve, not a
diverting valve. Note the direction of flow.
2. Ensure that adequate air venting is provided for the entire hydronic
system.
3. Select a non-return valve with minimum pressure loss for the
circulating pipes.
SVAL0232R1
B
A
B
AB
B
A
A
AB
B
A
C
D E
AB
10 x DN [min. 0.5 m]
AB
B
A
A
AB
Key :
A Mixing circuit
B Mixing circuit with bypass
(underfloor heating system)
C Injection circuit
D Diverting circuit
E Injection circuit with throughport valve
Figure 17.
Service
CAUTION:
Do not disassemble the valve and actuator combination. This assembly is
factory-calibrated, and should only be replaced by qualified personnel.
•
•
•
•
The low-friction and robust, maintenance-free design makes regular servicing
unnecessary and ensures a long service life.
The valve stem is sealed from external influences by a maintenance-free gland.
If the red LED is lit, the electronics must be recalibrated or replaced.
If required, the circuit board can be replaced. Order part number ASE12.
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