Stewart FILMSCREEN STI-1 Wall Plate Instructions

Stewart FILMSCREEN STI-1 Wall Plate

Product Information

The STI-1 wall plate is a product manufactured by Stewart Film Screen Corporation. It is designed to replace the side plate on the Classic Model A electric screen. The wall plate comes with a wiring diagram for both the side plate and relay. It also has an optional 12V DC transformer that can be used to operate the screen by connecting it to a switch or AC outlet.

Product Usage Instructions

1. Before replacing the side plate, make sure the electric screen’s power cord is unplugged or the circuit breaker has been shut off.
2. Remove the existing side plate at the end of the screen.
3. Disconnect the wire nuts.
4. Refer to the STI-1 Side Plate wiring diagram for proper installation.
5. Connect the wires as follows:
   • Motor: Green wire is positive 12 volts (+), Sleeve is negative 12 volts (-).
   • Neutral: White wire.
   • Wire to projector or transformer: Red, black, and yellow wires.
6. If using a transformer, connect it to a switch or AC outlet and switch the secondary or output of the transformer, NOT the 120V input of the transformer.
7. Refer to the STI-1 Relay wiring diagram for proper installation.
8. Connect the wires as follows:
   • Motor: Green wire is positive 12 volts (+), Sleeve is negative 12 volts (-).
   • Neutral: White wire.
   • Wire to projector or transformer: Red, black, and yellow wires.
9. If using a transformer, connect it to a switch or AC outlet and switch the secondary or output of the transformer, NOT the 120V input of the transformer.

STI Wall Plate for Classic Model A Work Instruction

STEWART FILMSCREEN CORPORATION

STI Wall Plate for Classic Model A Work Instruction
Document Identifier| Revision| Date Approved| Date Effective
QW-751| A| 1-12-22| 1-14-22

Responsibility and authority:

| Process Owner| Position / Title
Dino von Noy|  | QA Manager

PURPOSE
Instructions to correctly replace the Side Plate on Classic Model A.

Scope
This procedure applies to properly replace Side Plate on Classic Model A brand.

Definitions
None applicable

Definitions
None applicable.

Procedures

STI-1 Relay Replacement Instructions – Classic Model A Remove existing side plate / trigger relay

1. Make sure the electric screen’s power cord is unplugged or the circuit breaker has been shut off.
2. Remove the existing side plate at the end of the screen.
3. Disconnect the wire nuts

Install new side plate  trigger relay

1. Use the diagrams below for proper wiring connections.
2. Do not connect the incoming AC hot (black) to the motor black – it connects to “yellow”
3. Secure wire connections with wire nuts.
4. Reinstall the endplate and supply AC to the unit.

Trigger operational information
The STI-1 relay receives a 12 vdc trigger input signal to deploy the screen. At that time the LED indicator will light up and remain lit while the screen is “down”. When the trigger signal is terminated, the LED will go out and the screen will retract. It is important to remember to allow the screen to fully deploy or retract before switching directions of the trigger signal. Never reverse a trigger signal when the motor is operational. Always allow the motor to fully cycle and stop before sending or removing the trigger signal.

STI-1 Side Plate wiring diagram

• Optional 12 VOLT DC Transformer can be used to operate the screen by connecting it to a switch or a AC outlet. Red Black Yellow Green Neutral is White.
  NOTE
  If using a transformer, switch the secondary or Output of the transformer NOT the 120V Input of the transformer.

STI-1 Relay wiring diagram

Optional 12 VOLT DC Transformer can be used to operate the screen by connecting it to a switch or a AC outlet. Red Black Yellow Green Neutral is White Black.

NOTE
If using a transformer, switch the secondary or Output of the transformer NOT the 120V Input of the transformer.

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