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Data centre automatic doors: interlocks, logged access, cooling, uptime

Data Centre Automatic Doors: Interlocked, Logged and Always On

Data centre automatic doors control who reaches the servers, keep the cooling inside and must never stop working, even in a power cut.

For specifications, sizes and a project quote, see our commercial automatic doors page. This guide explains what data centre automatic doors need to do, which door suits each entrance, how they are installed and serviced, and what they cost. We do commercial pedestrian entrances only: no garage doors, gates, roller shutters or private homes.

Data centre automatic doors: interlocks, logged access, cooling, uptime
Data centre automatic doors in four points.

Table of Contents

What data centre automatic doors need to do

Every entrance is different, but data centre automatic doors share the same six requirements.

Interlocked entry

Two doors form a mantrap: the inner door opens only after the outer door has closed and the person is verified, so tailgating is prevented.

Logged access

Every opening is linked to card or biometric access control and logged, so the site can prove who entered and when.

Cooling and pressure

Doors must close promptly and seal well to keep cool air in the halls and hold the pressure the cooling design needs.

Uptime

Battery backup and a defined power-failure behaviour are essential; the door must not fail open or shut without warning.

Equipment movement

Loading routes need wide openings for server racks, often on a separate door from staff entry.

Change control

Work is planned through the site’s change-control process and carried out with escorts.

Which door suits each data centre entrance

These are the starting points we use for data centre automatic doors. Every doorway is confirmed on site.

Entrance What we usually specify
Visitor entrance Interlocked sliding mantrap
Hall entry Sliding with biometric access
Loading route Wide sliding door
Office area Sliding with card access
Plant room Swing with access control
Data centre automatic doors: which door suits each entrance
Which door suits each entrance.

The operators behind data centre automatic doors

Most data centre automatic doors we install run on one of two operators, both imported and assembled at our Laser Park base in Roodepoort and tested to one million operating cycles: the MC-125 automatic sliding door, from R27 590 excluding VAT, and the MCW-100 swing door operator, from R15 900 excluding VAT. Both carry 24 months on the operator.

To see how the drive works, read our automatic sliding door mechanism guide.

Common faults on data centre automatic doors

Interlock logic and access-control wiring faults, worn seals, and batteries that fail during an outage. Most of these start as wear that a six-monthly service would have caught. See automatic door repairs.

Installing data centre automatic doors

Every project starts with photographs and a survey of the opening, the header, the floor, the power supply and the access-control connection. We confirm the door type, leaves, glass, sensors and locking in writing, install with our own team (usually in a day for a standard entrance), commission the speeds, sensors and locking for the people who use the door, and hand over a written record of the settings. See automatic door installation.

On a new building, involve us before the shopfront is ordered so the header, power and cabling are right first time. On an existing building, sound leaves can often be reused with a new operator, which costs a fraction of a new entrance. See automatic door CAD drawings.

Servicing data centre automatic doors

Average doors are serviced every six months; busy entrances more often, based on the cycle count recorded at each visit. Every service checks the track, rollers, belt, motor and controller, tests the sensors, lock and battery, sets the speeds and forces and ends with a written record. Several doors or branches can sit under one service level agreement.

Power cuts, fire and safety

Every entrance gets a defined behaviour for a power failure and a fire alarm: open and stay open, close and lock, or keep running on battery backup, agreed with the building and its fire strategy. Safety sensors stop or reverse the door before it touches anyone and are tested on every visit; glazing is safety glass as SANS 10400-N requires. See automatic doors and load shedding and automatic door safety requirements.

What data centre automatic doors cost

The MC-125 sliding door operator starts from R27 590 excluding VAT and the MCW-100 swing door operator from R15 900 excluding VAT. The installed price of data centre automatic doors depends on the leaves, glass, header, sensors, locking and access control, and every site gets a written quotation. Planned servicing costs far less over the life of a door than emergency call-outs. See automatic door prices.

Data centre automatic doors in Gauteng

We supply, install and service data centre automatic doors across Johannesburg, Sandton, Midrand, Pretoria, Centurion, the East Rand and the West Rand from our Laser Park base, with same-day attendance in Gauteng where possible, and across South Africa on planned visits.

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Data centre automatic doors across Gauteng, attended from our Laser Park base, schematic map
Attended from our Laser Park base in Roodepoort. Schematic, not to scale.

Testing interlocks

Interlocks are tested on every service: each door is opened in turn to prove the other cannot, the fire release is tested with the site, and the results are recorded for the site’s audit.

Working inside a live site

Every visit is booked through change control, carried out with an escort and planned so one route always stays available.

Colocation sites

Colocation centres serve many tenants, so access rules differ per hall and per customer. Doors are programmed with the access system so each tenant reaches only its own space.

Dust control

Server halls need clean air. Doors with brushes and seals, and a short hold-open time, reduce the dust carried in from corridors.

Data centre automatic doors and audits

Auditors look for logged access, tested interlocks and maintenance records. We provide service reports that show all three for every door.

Health and safety on site

Every job starts with a site induction where the building requires one and a safe-work method that covers barricading the doorway, working at height on the header, isolating the power and keeping an alternative route open. Our technicians carry their own protective equipment, follow the site’s own hygiene and access rules, and leave the work area clean.

One team for the life of the door

We design, supply, install and service data centre automatic doors with one team, so there is one point of contact from the survey to the last service visit. If data centre automatic doors ever fail, the people who installed them are the people who fix them.

Sliding, swing or revolving?

Sliding doors move the most people and never swing into anyone, so they suit most main entrances. Swing doors suit narrow openings, corridors and existing hinged doors. Revolving doors keep wind and heat loss out of tall lobbies but always need a swing door beside them for wheelchairs and goods. For data centre automatic doors, the main entrance is usually sliding and the internal doors swing. See sliding vs swing door.

Safety sensors explained

Activation sensors, usually microwave radar, open the door when someone approaches. Safety sensors, usually active infrared, watch the threshold and the path of the leaves so the door cannot close on someone standing still. Light curtains in the posts add a vertical safety field on busy or sensitive entrances. All of them are set on site and tested with a test body on every service.

The first year after installation

In the first months the building learns how the door behaves, and we often fine-tune speeds and sensor fields after the first busy weeks. The first service, normally at six months, records the cycle count so the service interval for data centre automatic doors can be set from real use rather than guesswork.

Three common myths

“Automatic doors waste energy”: a well-set door closes faster than people close a manual one. “They are only for big buildings”: a single swing operator can automate a small practice door. “Any electrician can fix them”: safety settings, forces and sensors need a trained technician and the right parts.

Gauteng conditions

Gauteng brings its own challenges for data centre automatic doors: summer afternoon storms with hail, wind and driving rain; dry, dusty winters that grind into tracks and rollers; lightning that can damage electronics; and load shedding that can stop a door at the worst moment. We answer each one with the specification: laminated or toughened safety glass, sensors set to ignore wind-blown debris, brushes and seals against dust, surge protection where lightning is common and battery backup on every entrance that must keep working. The service interval is then set from the conditions at each site, not from a fixed calendar.

A typical project, step by step

The client sends photographs of the entrance and tells us how busy it is. A technician surveys the opening, the header, the floor and the power and access-control connections. We confirm the door type, leaves, glass, sensors and locking in writing with a price and lead time. On the agreed day our team installs the operator and leaves, commissions the speeds, sensors and lock, tests the power-failure and fire behaviour with the building and hands over a written record. The first service is booked six months later. This is how every project for data centre automatic doors runs, large or small.

Access control and security

Doors can be linked to card, tag, biometric, keypad or intercom readers, to timers for trading hours and to the alarm. Two doors can be interlocked where screening is needed, and the lock is set to release on the fire signal where the door is an escape route. See automatic door access control.

Accessible entrances

An automatic door is the simplest way to make an entrance usable for wheelchair users, parents with prams and people carrying goods. Clear width, opening and closing speeds, hold-open time and push buttons are set on site for the people who use the door. See automatic doors for disabled access.

Energy and comfort

A door that closes promptly keeps air-conditioning and heating inside. Hold-open times and sensor fields are set so the door opens for people coming in and out, not for passers-by or wind-blown leaves, and an airlock or revolving door is considered where wind is a problem.

Working in occupied buildings

Most of our work happens in buildings that stay open. We barricade the doorway, keep an alternative entrance open, work outside peak hours where possible and leave the site clean. Every visit starts with a safe-work method for that building.

What you receive after every visit

A written report of what was found and done, the parts used, the settings left on the door, the cycle count, anything that still needs attention and the date of the next visit.

Planning your budget

Budget for three things: the installation or repair itself, any parts or new equipment, and an ongoing service plan. Where several entrances need work, it can be phased over months, starting with the doors that matter most to safety and security. Planned servicing of data centre automatic doors costs far less over their life than emergency call-outs.

Spare parts we hold

We keep the parts that wear first at our Laser Park workshop: belts, rollers and carriages, sensors, locks, batteries and controllers for the MC-125 and MCW-100, and common parts for other makes, so most faults are fixed on the first visit. See automatic door spare parts.

Modernising older entrances

When an old operator keeps failing or its parts are no longer made, a new MC-125 or MCW-100 can usually be fitted to the existing leaves, glass and frame. This costs a fraction of a new entrance and comes with 24 months on the new operator. See automatic door modernisation.

Why choose MC Automations

  • Our own operators: the MC-125 and MCW-100 are imported and assembled at Laser Park.
  • Our own technicians: we never sub-contract installation, servicing or repairs.
  • Any brand: we service and repair other manufacturers’ doors too.
  • Spares in Gauteng: common parts are held at our Laser Park workshop.
  • Written records: every visit ends with a report.
  • Warranty: 24 months on new MC operators.

Getting the best from your entrance

Keep the floor guide and the area in front of the sensors clear, do not prop the door open or block it with stock, and ask cleaners not to spray water onto the sensors and header. Report noises, hesitation and doors that reopen for no reason early, because these are the first signs of wear. Know where the program switch is and what each mode does, so staff can set the door to open, closed, exit-only or night mode when needed.

Terms you will hear

Operator

The motor, gearbox and controller in the header that drive the door.

Leaves

The moving panels of the door.

Activation sensor

Opens the door when someone approaches.

Safety sensor

Stops or reverses the door if someone is in the way.

Hold-open time

How long the door stays open before closing.

Night mode

Locked and opened only by card, keypad or key switch.

Interlock

Two doors linked so only one opens at a time.

Cycle count

How many times the door has opened, used to plan servicing.

Questions to ask before you choose a contractor

Ask who will install and service the doors, whether spares for your make are held locally, how quickly they attend a breakdown, whether you get a written report after every visit, what warranty applies to new operators, and how the power-failure and fire behaviour of each door will be set and recorded. A supplier who answers all of this in writing is one you can rely on for the life of the entrance.

What to send for a data centre automatic doors quote

  • The address of the building and the number of entrances.
  • A photograph of each doorway and of the header above it.
  • The clear opening width and height.
  • How busy each door gets at its worst time of day.
  • Any access-control, alarm or screening requirements.
What to send for a data centre automatic doors quotation
Five things that settle a quotation before the survey.

Request a quote or call 010 412 0062, Monday to Thursday 08:00 to 16:30 and Friday 08:00 to 14:00.

Related guides

door interlocking system · automatic door access control · hermetic doors

Data centre automatic doors: frequently asked

What type of door is best for data centre?

It depends on the entrance: visitor entrance: interlocked sliding mantrap; hall entry: sliding with biometric access; loading route: wide sliding door.

How much do data centre automatic doors cost?

Operators start from R27 590 excluding VAT for the MC-125 sliding door and R15 900 excluding VAT for the MCW-100 swing door. Each site is quoted in writing.

Can data centre automatic doors keep working during load shedding?

Yes, with battery backup. The power-failure behaviour of every entrance is agreed in advance.

How often should data centre automatic doors be serviced?

Every six months for an average door, more often for busy entrances, based on the cycle count.

Do you work outside Gauteng?

Yes. We work across South Africa from our Laser Park base, with planned visits and breakdown attendance agreed in writing.

Who installs and services the doors?

Our own technicians, never sub-contractors, with a written record after every visit.

Data centre automatic doors at a glance

  • Data centre automatic doors are specified around the people and traffic at each entrance.
  • Data centre automatic doors run on the MC-125 or MCW-100, tested to one million cycles.
  • Data centre automatic doors keep working through load shedding with battery backup.
  • Data centre automatic doors are installed and serviced by our own team.

See also the South African Bureau of Standards.

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