Chamberlain 1703EML Planning, Header Bracket Installation, For pre-hung canopy garage doors

Planning

You may find it helpful to refer to the applicable illustration as you proceed with the installation of your garage door operator and The Chamberlain Arm™. The garage door opener must be installed parallel to the floor.

Follow rail assembly instructions as shown in the Owner's manual. Note: For the best operating result of canopy doors, use only 3-sections of the 4-piece rail or add a rail support bracket as shown (16). Make sure rail support bracket does not interfere with the trolley movement (Purchase part no. 600121). If 3 rails sections are used, the chain (belt) must be cut by the same amount. For belts, a new belt clip is recommended (Purchase part no. 041B5669).

1.	Header wall	11.	Garage door opener
2.	Header bracket		manual release
3.	Garage door opener rail	12.	Chamberlain Arm™
4.	Ceiling	13.	Garage door track
5.	Garage door opener	14.	Garage door, should be
			horizontal in fully open
	hanging brackets
			position
6.	Trolley
		15.	Use limit adjustment of
7.	Extension arm
			garage door opener to
8.	Garage door
			level the garage door
9.	Garage door spring	16.	Rail support bracket
10.	Operator		(not supplied)

Header Bracket Installation

For a canopy door, the instructions (Figures 2A & 2B) replace Step 13 in the Owner’s manual which refer to positioning the header bracket. If you have an inward facing lintel, which does not allow the header bracket to

FIGURE 1	Canopy Garage Door – with 3 rail sections
				5
	1
			3	4
				6
	2
14	9	8		7
15				10
				11
	13		12

1		4	5
		3	16
2			6
14	9	8	7
			17
15			10
		12	11
13

Canopy Door with Structural Obstruction and 4 rail sections

1		4	5
	4		16
3
2			6
8			7
15			10
			11
13			12

Garage Door with Dual Tracks – with 4 rail sections (vertical and horizontal)

For pre-hung canopy garage doors

For doors either pre-hung in a metal frame or supplied with a metal frame for self-assembly, ensure header bracket is located as shown below:

be fitted directly above the garage door, you should see Figure 16 & text with this instruction. For dual track doors, install the header bracket 50mm (2”) above the high point of door travel as shown in the Owner’s manual.

Standard canopy garage doors

Canopy doors are normally provided without a frame, for fixing to a timber frame. In this case, ensure header bracket is located as shown below:

2

4

1

3

6

17 mm

41 mm

1

2	17 mm
	113.5 mm	FIGURE 2A
3
4		7
	3
5		If the door has a lip,
	5	measure from
		the top of the door,
		not the top of the lip.

114A3167A-GB

			FIGURE 2B
1.	Header bracket	5.	Garage Door
2.	Header frame	6.	Pre-hung door with frame
3. Top of Garage Door		7. Lip
4.	Door jamb

Proceed with Steps 14 in your Owner’s Manual. Replace Step

15 in the Owner’s Manual with the following instructions. Raise the operator until the rail is horizontal. The rail should be parallel to the floor. Temporarily support the operator using a step ladder. Continue with Steps 16 through 18 in the Owner’s Manual. In Step 15, the removal of 25mm (1”) board does not apply to canopy doors. After Step 18 is completed, proceed to page 4 in this manual to begin the installation of the Chamberlain Arm™.

2