Chamberlain Merlin MT5580 User Manual

ASSEMBLE DOOR ARM AND SET LIMITS –
NOTE: For one-piece doors, do not connect door arm to trolley before adjusting limits. Failure to follow instructions may result in dam-
age to door. See below.
A. SECTIONAL DOOR INSTALLATION:
Connect according to Figure B, then proceed to
Step 18.
B. ONE-PIECE DOOR INSTALLATION:
Connect straight door arm (1) and curved door arm sections (2) to obtain the longest possible length with hardware (3, 4 & 5). With door closed,
connect straight door arm section to door bracket with a clevis pin (6). Secure with a ring fastener (7).
Before connecting door arm to trolley, adjust travel limits. Limit adjustment screws are located on left side panel.
Open Door Adjustment: Decrease up limit. Turn up limit adjustment screw counterclockwise 5-1/2 turns.
Press door control button. Trolley will travel to full open position (8). Manually raise door to open position (parallel to floor) and lift
door arm (9) to trolley. The arm should touch trolley just in back of door arm connector hole (10) as shown in solid line drawing. Increase up limit if
necessary. One full turn equals 5cm (2") of door travel.
Closed Door Adjustment: Decrease down limit. Turn down limit adjustment screw clockwise 5 complete turns.
Press door control button. Trolley will travel to full
closed position (11). Manually close door and lift door
arm (12) to trolley. The arm should touch trolley just
ahead of door arm connector hole (13) as shown in
dotted line drawing. Decrease down limit if neces-
sary. One full turn equals 5cm (2") of door travel.
Connect Door Arm to Trolley: With door closed,
connect curved arm to trolley with remaining clevis
pin. Secure with ring fastener. Note: Lift door
slightly to make connection if necessary.
Run opener through a complete travel cycle. If door
has a slight "backward" slant in full open position,
decrease up limits until door is parallel to floor.
17
12
13
10
9
11
8
A
4
3
5
B
7
6
2
1
4
5
3
3
5
4
7
6
B
A
11

Chamberlain Merlin MT5580 Specifications

Power

rated power	400 W
voltage	230-240 Volts AC
max pull force	800N

Motor Specifications

motor type	Permanent split capacitor
speed	1500 rpm
drive mechanism	Chain with two-piece trolley on steel rail

Weight and Dimensions

length	3, 1m
headroom required	30mm
hanging weight	14, 5 kg