Emerson ASCO 108D10C DC Relay Panel, ASCO 173A19 Brochures and Data Sheets
ASCO Relay Control Panels
Applications
ASCO relay control panels were
originally designed to New York
City Board of Education specications to operate ASCO DC solenoid
valves controlling gas ow to school
kitchens, domestic cooking classes,
ceramic and metal shops. Because of
its many features and silent operation, the ASCO relay panel has also
been used in many other similar
institutions and schools outside New
York City. Vandalism and malicious
mischief have caused some city
governments to make it mandatory
that the gas supply be secured during
hours when schools are closed. Other
governmental bodies and consulting engineers have also recognized
this need, and specify the ASCO relay
panel even when not mandated by
code.
ASCO relay panels may also be used
in industrial and commercial installations where control of various gases
and uids are important.
ASCO Relay Panel
Catalog No 108D10C
Input Voltage: 120 volts, 60Hz
Output Voltage: 80 volts DC
Output Current: 0.8 amp maximum
Operations
Operating the key switch on the
control station energizes the relay,
opening a normally closed ASCO DC
solenoid valve which turns on the gas
ow.
Panel Features
• Reliability
ASCO’s long experience in control
assures a highly dependable system
especially when used in combination
with ASCO valves. If the control voltage is lost completely, or reduces to
approximately 50% of normal value,
the relay de-energizes the normallyclosed valve to shut off the gas ow.
The gas may also be shut off by
depressing the normally closed pushbutton switch located on the control
station.
The valve will not open at restoration of voltage until an authorized
person operates the key switch on the
control station. This eliminates the
danger of gas unknowingly escaping.
For convenience, auxiliary push-buttons, ASCO Catalog numbers 173A19
and 173A20 may be located at
various access points throughout the
building, for immediate shutoff under
emergency conditions.
• Silent Operation
Utilization of DC output provided by
the relay panel to the valves eliminates constant AC hum.
• Appearance
Shallow-depth NEMA Type 1 ush
mounted enclosure permits in-stallation directly into the wall for convenience, and elimination of obstructions in corridors or high trafc areas.
• Long Life
ASCO dust-tight industrial relay and
solid-state rectier are designed to
provide long life.
• Ease of Installation
Clearly marked terminals and installation drawings located on inside of
door.
• Approvals
Originally designed for and approved
by the New York City Board of
Education for use in public schools.
AC Relay Control Panel
Catalog No. 108D90C provides the
same features as the DC panels
previously described, except with
120/60 AC voltage output for AC
valves. Features a key-operated
switch with manual “on” and “off”
buttons directly on the cover.
108D90C is for ush mount applications and supports surface mount
installations.
The 108D90C is also available with
24 VAC, 24 VDC, 208 VAC, and 240
VAC output. Contact ASCO for
further details.
Relay Control Panels
Dimensions
Control System Schematic
Master Control Station
Catalog No. 216C89 consists of
a key-operated, normally-open
switch and a normally-closed
pushbutton mounted in a stainless
steel faceplate for ush installation.
Switches are labeled “Open” over
the key switch and “Shut” over the
pushbutton. Four inch square wall
box is not included. Required for
use with 108D10C; not applicable
to 108D90C installs.
108D10C
216C89
Control Stations
Catalog No. 173A19 (ush
mounted) and Catalog No 173A20
(surface mounted) consist of a momentary mushroom push-button
labeled “Emergency Stop”. When
the button is depressed power to
valves is shut off, cutting off gas
ow in less than 0.1 seconds.
Solenoid Valves
Series 8215 Solenoid Valves feature
2-way normally-closed operation
for gas service. They are explosion
proof and designed to handle
low pressure city gas. Control
voltage is 80 to 90 volts DC or
120/60 volts AC.
173A19
DC Valves for use with Panel 108D10C
Pipe
Size
(ins.)
1/2 EF8215G20 25 4.4 11.6
3/4 EF8215G30 25 5.1 11.6
1 1/4 EF8215B60 25 32 14.9
1 1/2 EF8215B70 25 35 14.9
Catalog
Number
1 EF8215B50 25 21 14.9
2 EF8215B80 15 60 14.9
Max.
Pressure (psi)
CV
Flow
Factor
Holding
Watts
AC Valves for use with Panel 108D90C (replaces AEP7200)
Pipe
Size
(ins.)
1/2 EF8215G20 50 4.4 10.1
3/4 EF8215G30 50 5.1 10.1
1 1/4 EF8215B60 25 32 15.4
1 1/2 EF8215B70 25 35 15.4
Catalog
Number
1 EF8215B50 25 21 15.4
2 EF8215B80 25 60 15.4
Max.
Pressure (psi)
CV
Flow
Factor
Holding
Watts
Solenoid Valves
Order by Catalog Number and Voltage
(Ex. EF8215G20 80-90VDC)
Contact ASCO Valve, Inc. at
800-972-2726
www.ascovalve.com
Gas Panels, Master Stations, and
Control Stations
Order by Catalog Number
(Ex. 108D10C)
Contact ASCO Power Technologies at
800-800-2726
www.ascopower.com
Emerson Network Power
ASCO Power Technologies,
50 Hanover Road, Florham Park, NJ, 07932
EmersonNetworkPower.com/ASCO
Emerson, Emerson Network Power are trademarks
of Emerson Electric Co. or one of its afliated companies.
©September, 2013 Emerson Electric Co.
3178 R4
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