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    » DSI Motor Control Circuit (MCC)
    » DSI Push Button Egress

Design Info & Specs

Approvals & Listings CAD Details & More Info

DSI Group Control Panel (GCP)

Smoke and Fire Curtain option

Function
The GCP provides power to the MCC units when the fire alarm status is normal (closed). If the fire alarm is activated, the MCC units are powered down allowing the curtains to deploy via gravity to their operational fire position. When the alarm is reinstated, the MCC’s are powered up retracting the curtains. If there is a main power failure, the back-up batteries provide power to the MCC’s for up to 3 hours (subject to load) and prevent deployment until discharged, unless overridden by an alarm signal. Delayed descent and delayed reset functions are fitted as standard.

Integral Battery Back up
Up to 3 hour power supplied by two 7Ah rechargeable sealed lead acid cells.

Testing
Key switch control on panel.

Status Indication
LED series on panel: Green=main power healthy, Red=fire status, Bottom Green=battery failure.

Compatibility
The GCP runs up to 5 MCC unites (5 motors) from the 24v ring output. Two stage descent (with brake motors) is fitted as standard and is adjustable to suit project requirements.

Options
Optional modules for delayed descent, split drop, and BMS relays are available as an upgrade.

GCP Box

Operation In Case Of Fire Or Loss Of Power

  • 1. Electrician to supply and run 4- solid 12 gauge color coated wires (12-4) for low voltage loop.
  • 2. Electrician to supply and mount 2- double gang “J” boxes at each smoke curtain and at GCP.
  • 3. “J” boxes must be clearly labeled “in” for incoming from GCP and “out” fore wire going out to the next smoke curtain or back to GCP.
  • 4. See MCC electrical requirements for further details on the location of “J” boxes.
  • 5. The maximum allowable length of the entire 24 volt loop from GCP to all mcc’s and back is 250 feet.
  • 6. Allow at least 6 feet of extra wire inside each “J” box in order for door systems to make final connections. There shall be no splices in wire loop.
  • 7. “In” and “out” wire must be run in separated conduit.
  • 8. All “J” boxes must be clearly labeled.

Specifications

Type Description
Dimensions 15-1/2” H x 13-1/2” W x 4” D
Finish White powder coated mild steel
Power supply 120-130v 60Hz AC
Fire signal Open on fire, normally closed volt free contacts

Options

GCP Diagram
MCC Unit box

DSI Motor Control Circuit (MCC)

Smoke and Fire Curtain option

Compatibility
All existing C and D series systems which include the MCC in a remote enclosure. Up to 5 MCC’s can be connected to each GCP.

Installation
The MCC should be mounted on the head box above the relevant motor position. In cases where the MCC needs to be mounted remotely, the motor cable must be protected. Where distances may exceed 5 feet, contact Door Systems for guidance.

Operation
For large curtains with a longer ascent time, the link RL1 can be removed to increase the time where the MCC drives the motor. With the link in, the timer drivers for 45 seconds, and with the link out, this increases to 90 seconds. The green LED on the PCB illuminates to show when the motor is driving at full power. When the curtain has fully retracted, the MCC “stalls” the motor and the “fold back” voltage of 3.5v holds the curtain up.

Operation In Case Of Fire Or Loss Of Power

  • 1. Electrician to supply and run 4- solid 12 gauge color coated wires (12-4) for low voltage loop.
  • 2. Electrician to supply and mount 2- double gang “J” boxes at each smoke curtain and at GCP.
  • 3. “J” boxes must be clearly labeled “in” for incoming from GCP and “out” fore wire going out to the next smoke curtain or back to GCP.
  • 4. See MCC electrical requirements for further details on the location of “J” boxes.
  • 5. The maximum allowable length of the entire 24 volt loop from GCP to all mcc’s and back is 250 feet.
  • 6. Allow at least 6 feet of extra wire inside each “J” box in order for door systems to make final connections. There shall be no splices in wire loop.
  • 7. “In” and “out” wire must be run in separated conduit.
  • 8. All “J” boxes must be clearly labeled.

Specifications

Type Description
Dimensions 6-1/2” H x 9-1/2” W x 2” D
Finish White powder coated mild steel

Options

MCC Diagram
Push Button Egress

DSI Push Button Egress

This is a refined metal push button with polished stainless surface and silver contact material. It takes screw terminals as connectors so that it’s easy to be assembled or removed on a project without soldering.

Specifications

Description
Mounting cut hole 16mm (0.63” or about 5/8”)
Head diameter 18mm operation
Type Momentary (Self return)
Switch contact 1NO (Normally open)
Max switch rating 3A/250VAC
Terminal type Screw
Body material Stainless steel
Button material Stainless steel
Contact material Silver plated gold
Degree of protection IP67
Operation temperature -20°C – 55°C
Panel thickness 1 – 6mm
Mechanical life 1,000,000 cycles
Function Momentary

Door Systems® smoke and fire protective curtain company is a nationwide company and it’s service areas include but not limited to the following cities and surrounding areas:

Albuquerque, Arlington. Atlanta, Austin, Baltimore, Boston, Charlotte, Chicago, Cleveland, Colorado Springs, Columbus, Dallas, Denver, Detroit, El Paso, Ft. Collins, Ft. Lauderdale, Fort Worth, Fresno, Hartford, Houston, Indianapolis, Jacksonville, Kansas City, Las Vegas, Long Beach, Los Angeles, Louisville, Memphis, Mesa, Miami, Milwaukee, Minneapolis, Nashville, Newark, New Orleans, New York City, Oakland, Oklahoma City, Omaha, Orlando, Philadelphia, Phoenix, Pittsburgh, Portland, Raleigh, Richmond, Rochester, Sacramento, Salt Lake City, San Antonio, San Diego, San Francisco, San Jose, Seattle-Tacoma, St. Louis, Tampa, Tucson, Tulsa, Virginia Beach, Washington DC, Wichita

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