Chamberlain MR850 Garage Door Opener User Manual


 
1. Instruction manual (this document)
2. Stop collar
3. Clamp bracket
4. Release handle, cord and risk of entrapment card
5. Transmitters (2)
6. Wireless wall button
7. Hardware bag
8. Weight bar
9. Clamp plate
10. Warning label and risk of entrapment label
C
ARTON INVENTORY
1
TOOLS REQUIRED
2
1. Ladder
2. Adjustable wrench for U-bolts already installed
on the door
3
. 8mm socket, 10mm socket and 13mm extended
socket and socket wrench
4. 300mm socket extension (for minimum side-room
installations)
5
. Drill and 5.5mm drill bit
6. Philips-head screwdriver
7. Marker pen
8. Door stand or similar device to safely support door
(not shown)
DOOR REQUIREMENTS
3
Ensure that there is at least 45mm from the edge of the curtain to the edge of the bracket. If the roller door
drum is on the edge of the curtain or is a smaller diameter, additional clearance may be required.
If the drum is more than 60mm from the curtain edge or of a smaller diameter, an extension pole kit
may be required.
Different drum and bracket types may result in the minimum side room clearance not being possible and
extension poles being required. Ensure there is a power point near the opener.
95mm
95mm
Minimum distance from
edge of curtain to edge of
door bracket 45mm
Independent
clamping method
Direct clamping
method
The maximum allowable door height is 4.5m with a maximum curtain area of 12.5m²* (MR650) -16.5m²* (MR850)
(door height in metres multiplied by the width in metres). The door must be spring balanced.
*The Protector System™ (IR Beams) must be installed if the force at the edge of the closing door exceeds
400N (40kgf). Door axle diameter must not exceed 35mm.
2