Installation Guide for SDC 1091AIWD Fail-Safe Concealed Mortise Bolt Lock

Quick Guide for Installation

The SDC 1091AIWD is a concealed mortise bolt lock designed for easy installation in existing entrances. The process involves mortising a cutout, attaching the wiring, inserting the lock, and securing it with two attaching tabs. The unit includes a PR-1000 Power Regulator to reduce power consumption and heat, which is recommended for optimal performance.

Installation Instructions

Overhead Installation (Horizontal):

• Examine the top rail of the door to locate the strike plate position.
• Mark the door for the end of the strike plate and make a corresponding mark on the header.
• Locate the center line of the door thickness on the header and attach the adhesive cutout template.
• Center punch the tab-mounting screw locations, counter-sink for #10 screws, and saw or rout out the cutout area.

Sidejamb Installation (Vertical):

• Examine the lock stile jamb for the point nearest the center of the door height.
• Mark the door stile horizontal for the top end of the strike plate and make a corresponding mark on the jamb.
• Attach the adhesive cutout template to the jamb, aligning the top of the cutout with the horizontal mark.
• Center punch the tab-mounting screw locations, counter-sink for #10 screws, and saw or rout the cutout.

Finalizing Installation:

• Attach the mounting tabs inside the cavity.
• Connect power supply leads to the lock leads.
• Insert the lock into the cutout. When installed horizontally, the bolt end must be nearest the lock stile. When installed vertically, the bolt must be at the top end of the cutout.
• Secure the lock with #10-32 machine screws.
• Use the strike plate as a template to mark and drill screw holes, then mortise and attach the strike.

Auto Relock Switch (ARS) Adjustment

The Automatic Relock Switch (ARS) is factory-set for a 1/8 inch clearance between the top of the door and the transom bar or head jamb. If there is a wider gap, you can compensate for it:

• Loosen the lock nut on the switch assembly.
• Turn the assembly clockwise to adjust for a wider door gap.
• Tighten the lock nut once the adjustment is satisfactory.

Wiring and Power Configuration

The PR-1000 Power Regulator is included to reduce heat and increase solenoid life. DC voltage is recommended for improved heat reduction.

• Solenoid Voltage: Configure for 12VDC (900mA max) or 24VDC (450mA max) as indicated in the wiring diagrams.
• Wiring with PR-1000: Connect the PR-1000 between the power source and the lock. The regulator accepts 12/24 VDC/VAC (+/-10%).
• Wiring without PR-1000: Connect the solenoid directly to the power source and access control switch, ensuring correct voltage polarity.

Troubleshooting

• Bolt does not project: Check voltage and alignment of the strike.
• Bolt projects but chatters: Voltage is too low.
• Bolt will not retract: Strike is mis-aligned.

Technical Data

• Face Plate: 8-1/2 inch x 1-1/2 inch x 1/8 inch.
• Strike: 4 inch x 1-1/2 inch x 1/8 inch.
• Bolt: 5/8 inch diameter, solid stainless steel.
• Bolt Throw: 3/4 inch.
• PR-1000 Module: 3-3/4 inch x 1-1/4 inch x 1/2 inch.