Interguard Complete Interlock Kit for 3 Doors

FAQ

What’s included in the 3-door interlock kit?

The kit includes: 1 x IG432 controller with integral PSU, 6 x S1718S request to release buttons with status LEDs and sounder, 1 x S1719S maintenance key switch, 3 x MCP-GS-11 DPCO emergency release units, and comprehensive fitting instructions. You will need to provide door locks, door contacts, and interconnecting cable to complete the installation.

Why are there Six request buttons for a 3-door system?

The kit includes six S1718S request to release buttons to provide control from both sides of each door. This allows users to request access whether approaching from inside or outside each interlocked door, providing maximum flexibility and convenience in the door layout and traffic flow design.

What door locks and contacts do I need to purchase separately?

You’ll need to select appropriate locks based on your operating mode and security requirements. Options include electromagnetic locks (maglocks), electric strikes, or monitored locks. You’ll also need three door contacts (typically magnetic reed switches) to monitor door position. Hoyles can provide guidance on suitable products for your specific application – call +44(0)1744 886600 for advice.

What is the S1718S request to release button?

The S1718S is an integrated unit combining a request to release button with red/green LED status indication and an audible sounder. This provides users with both visual and audio feedback about door status and access requests. The LEDs indicate when doors are locked, released, in use, or if there’s a breach or fire alarm condition, while the sounder confirms button presses and alerts.

How does the maintenance key switch work?

The S1719S maintenance key switch allows authorized personnel (typically maintenance staff or facility managers) to override the interlock system when necessary for servicing, testing, or emergency situations. When activated with the key, it can release doors regardless of interlock status, while still maintaining monitoring and alarm capabilities.

What are the DPCO emergency release units used for?

The MCP-GS-11 DPCO (Double Pole Changeover) emergency release units provide immediate door release capability for life safety compliance. The changeover contacts allow integration with both the door lock release circuit and alarm/monitoring systems. When activated, they release the door while signalling that emergency egress has been used, ensuring both safety and security monitoring.

Can I integrate this with my existing access control system?

Yes, the IG432 controller has request to release inputs that can accept signals from card readers, keypads, biometric devices, or any access control system providing a normally open contact closure. The request buttons included in the kit can work alongside or be replaced by access control devices depending on your security requirements.

What operating mode should I choose?

Mode 1 is suitable when doors are normally unlocked with automatic locking when one door opens. Mode 2 keeps doors locked and requires request to release, recommended for most applications to minimize breaches. Mode 3 uses monitored locks or automatic door operators for the highest security level. Hoyles’ experienced team can advise on the best mode for your specific application.

How does the audible sounder on the S1718S work?

The integrated sounder provides audio feedback to users when they press the request button, confirming their action has been registered. It can also provide different tones or patterns to indicate various system states such as access granted, access denied, or alarm conditions, enhancing the user experience and system awareness.

Is this kit suitable for cleanroom applications?

Yes, the IG432 system has been specifically designed for cleanroom environments and is used worldwide in pharmaceutical, medical device, biotechnology, and food production facilities. The interlock ensures sequential door access to maintain pressure differentials and environmental separation. The privacy and de-fog functions support decontamination and gowning procedures essential in controlled environments.

What industries use this interlock system?

Hoyles has extensive experience across diverse sectors including high security applications, cash handling facilities, jewellers, police stations, pharmaceutical manufacturing, medical device production, food processing, cleanrooms, laboratories, and any facility requiring controlled access between segregated areas. Each industry benefits from the system’s flexibility, reliability and configurable security levels.

What support is available for specifying and installing the system?

Hoyles provides comprehensive technical support including no-obligation advice on your door interlocking requirements. Their experienced team can help specify the correct locks, contacts and cable for your application, advise on operating mode selection, and provide installation guidance. Contact them at +44(0)1744 886600 or sales@hoyles.com for expert assistance.