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 normally-closed valve to shut off the gas flow.

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 flush mounted enclosure permits in-stallation directly into the wall for convenience, and elimination of obstructions in corridors or high traffic areas.

• Long Life
ASCO dust-tight industrial relay and solid-state rectifier 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.