Gas Electro-mechanical Valves
w w w . m a x o n c o r p . c o m
combustion systems for industry
Maxon reserves the right to alter specifications and data without prior notice.
© 2009 Copyright Maxon Corporation. All rights reserved.
10 - 30.1 -
13
E -
m
- 10/09
Electrical data
General
MAXON shut-off valves are electrically actuated from a power source. Standard assemblies include an internal holding solenoid or
clutch and printed circuit board.
Position switch wiring diagrams (reproduced below) are part of each valve assembly, summarizing electrical data and wiring for a
valve equipped with terminal block and a full complement of optional switches.
Good practice normally dictates that auxiliary switches in valves should be used for signal duty only, not to operate additional
safety devices.
Valve position switches are offered in SPDT (single pole/double throw). Recommended packages include one open switch and
one closed switch (VOS1/VCS1). Additional auxiliary switches are designated by VOS2/VCS2.
VCS (valve closed switch) is actuated at the end of the closing stroke. VOS (valve open switch) is actuated at the end of the
opening stroke.
Switch amperage ratings are shown on the schematic wiring diagrams below. DO NOT EXCEED rated amperage or total load
shown. Diagrams show valve with a full complement of switches. For normally-closed valves, the wiring diagram illustrates the
switch contact positions with the valve closed. For normally-open valves, the wiring diagram illustrates the switch contact position
with the valve open.
Figure 1: Normally-closed shut-off valves
Standard and CP
valves
High capacity
valves
(4” & 6” sizes only)
1-3
1-3
4-5
4-6
7-
8
7-9
7-
8
7-9
10-11 10-12
VOS-1
VOS-2
VCS-1
VCS-2
1 2 3 4 5 6 7
8
9 10 11 12
L(+) N(-)
M
VOS-1
VOS-2
VCS-1
VCS-2
SPDT
SPDT
DPDT
DPDT
SPDT
SPDT
L N
1102216/
N
ORMALLY CLOSED
V
AL
V
E
125
V
AC
1 AMP
2
8V
DC
5 AMP
SPDT (HS)
DI
V
ISIO
N
2 AREA
125
V
AC
15 AMP
125
V
AC
10 AMP
125
V
AC
10 AMP
250
V
AC
15 AMP
125
V
DC
10 AMP
250
V
AC
10 AMP
125
V
DC
0.5 AMP
250
V
DC
3 AMP
125
V
DC
0.3 AMP
P
M
A
5
1
.
0
C
D
V
0
5
2
P
M
A
5
2
.
0
C
D
V
0
5
2
SPDT (HC)
SPDT
DPDT
GE
N
ERAL PURPOSE AREA
1-3
4-5
4-6
7-
8
7-9
10-11 10-12
VOS-1
VOS-2
VCS-1
VCS-2
12 11 10 9
8
7 6 5 4 3 2 1
L(+) N(-)
M
VOS-1
VOS-2
VCS-1
VCS-2
SPDT
SPDT
DPDT
DPDT
SPDT
SPDT
L N
25643
N
1
2
3
4
PRI
N
TED CIRCUIT
BOARD
90
V
DC
125
V
AC
15 AMP
125
V
AC
10 AMP
125
V
AC
10 AMP
250
V
AC
15 AMP
125
V
DC
10 AMP
250
V
AC
10 AMP
125
V
DC
0.5 AMP
250
V
DC
3 AMP
125
V
DC
0.3 AMP
P
M
A
5
1
.
0
C
D
V
0
5
2
P
M
A
5
2
.
0
C
D
V
0
5
2
SPDT (HC)
SPDT
DPDT
GE
N
ERAL PURPOSE AREA
N
ORMALLY CLOSED
V
AL
V
E
151
Summary of Contents for DP
Page 1: ...Operation Manual 2016 MODELS MSF DP DPSL DPXSL DPX4T DPX8T DPX12T DPX16GT Grain Dryer ...
Page 2: ......
Page 4: ...2 ...
Page 6: ...GENERAL 2 01 01 2016 Dryer Labels Location 4 ...
Page 7: ...GENERAL 3 01 01 2016 5 ...
Page 14: ...12 ...
Page 24: ...STARTUP 10 01 01 2016 Alarm Limit Indication Error Messages 22 ...
Page 25: ...STARTUP 11 01 01 2016 23 ...
Page 26: ...STARTUP 12 01 01 2016 24 ...
Page 32: ...STARTUP 18 01 01 2016 GRAIN SHRINKAGE TABLE SHRINKAGE WHEN GRAIN IS DRIED TO THESE LEVELS 30 ...
Page 46: ...STARTUP 32 01 01 2016 Alarm Limit Indication Error Messages 44 ...
Page 47: ...STARTUP 33 01 01 2016 45 ...
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