How to open the MSR

To open the MSR

• Press the GREEN Open/Close Door button. Door will open about 5cm.
  • If Outside, Pull the door open.
  • If Inside, Push the door open.

Emergency MSR Door Opening Instructions

To unlock the door:

• Press the RED Emergency Door Release button. Door will open about 2cm.
  • If Outside, Pull the door open.
  • If Inside, Push the door open.

If the door is still stuck:

• Place the hexagonal key in the Emergency Unlock slot and turn in direction of the arrow.
• Repeat for the second slot.
  • If Outside, Pull the door open.
  • If Inside, Push the door open.

PDFs instructions for emergency opening the MSR door from both Outside and Inside can be found below...

OUTSIDE emergency door opening instructions
INSIDE emergency door opening instructions

Principles of MSR Door Operation

The MSR door is locked by pressurized air, provided by the compressor in the plant room next door.
On pressing the Emergency Door Release button, the air pressure is released, allowing free movement of the two latches holding the door shut.
The door will open approximately 2cm and can be pulled/pushed open the rest of the way.
It is heavy so a reasonable amount of effort will be required.
If for any reason the two latches are still locked after releasing the air pressure, the Emergency Unlock mechanism releases a spring that pulls the latches away from the lock hinges, allowing the door to open.

To reset the latches
Open the door wide enough to gain access to them.
Insert the hex key into both slots and turn in the opposite direction of the arrow.
Pull the latches out of their unlocked positions, against the spring, until they lock.
The spring is powerful, so pull hard!