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MXG461B Series Modulating Control Valve
with Magnetic Actuator
Connecting the Z366
Stem Heater
Specifications
Electrical
Functional data, actuator
Functional data, valve
1. Tested at 1.5 × PN (24 bar), similar to DIN 3230-3
2. For medium temperatures <32°F (0°C), the Z366 stem heating element is required.
3. Can be selected via DIP switch.
Siemens Building Technologies, Inc.
The Z366 includes connectors for the
stem heater.
The stem heater is designed for a
24 Vac power supply.
Low-voltage use only
24 Vac
Operating voltage
Frequency
Typical power consumption
Standby
Nominal apparent power
Suitable fuse
24 Vdc
Operating voltage
Input
Positioning signal Y
Impedance
Forced control
Impedance
Closing the valve (Z connected to G0)
Opening the valve (Z connected to G0)
No function (Z not wired)
Output
Position feedback signal voltage
Stroke measurement
Nonlinearity
Nominal pressure
Operating pressure p
e max
Pressure differential Δp
v max
Leakage
2)
Water temperature
3)
Valve characteristic
Resolution ΔH/H
100
Type of operation
Position when de-energized
Orientation:
Positioning time
Class 2 (SELV, PELV)
24 Vac +15/-10%
45 to 65 Hz
See Table 1 P
<1 W (valve fully closed)
See Table 1, S
Slow, see Table 1, I
20 to 30 Vdc
0/2 to 10 Vdc or 0/4 to 20 mA, or
0 to 20 Vdc Phs
0/2 to 10Vdc
100K ohm//5nF
0/4 to 20 mA
240 ohm//5nF
22K ohm
<1 Vac; <0.8 Vdc
>6 Vac; >5 Vdc
Phase-cut or positioning signal Y
active
0/2 to 10 Vdc; load resistance > 500Ω
current
0/4 to 20 mA; load resistance < 500Ω
Inductive
+3% of end value
ANSI 125 (PN 16)
1)
232 psi (16 bar)
See Table 1
A → AB Maximum 0.05% C
B → AB Depends on application data
(0.2% C
–4°F to 248°F (–20°C to 120°C)
Equal percentage or linear, optimized
near the closing point
>1 : 1000 (H = Stroke)
Modulating
A → AB closed
Upright to horizontal
<2 seconds
Technical Instructions
Document Number 125-4461
366 stem heater
Heating output 10 W
Figure 13. Z366 Stem Heater.
med
NA
N
V
)
V
May 3, 2006
M
Page 7
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