Chamberlain LiftMaster UGO300B, Instructions Manual

Page: 9 / 17

CONTENTS OF THE CARTON
• Unit (1)
• Hardwarebag (1)
• Manual (1)
• Key for switch to manual operation (1)
• Capacitor 12yF (1)
BEFORE YOU BEGIN
Planning and precision are vital for the
mounting of an underground opener, in order to
ensure that unforeseen circumstances do not
limit or prevent proper operation later.
Adequate drainage facilities are essential to avoid
malfunction.
♦
Size of gate: The size of the gate is one very important
factor. Wind can slow the gate down or distort it, causing a
marked increase in the force required to move it.
♦
Weight of gate: The specified weight of the gate only gives
a rough indication of the output required from the drive. The
function which the gate is expected to perform is also
important in this connection.
♦
Temperature: Low outdoor temperatures can make it more
difficult or impossible to set the gate into motion (e.g.
because of soil changes).
High outdoor temperatures may cause the temperature cut-
off (at about 135 °C) to be triggered earlier.
♦
Operating frequency, duty cycle: The actuator has a
maximum duty cycle of 50% (e.g. 50% of one hour).
PREPARATIONS
Before installation, please check contents of packaging.
Please remember that you will require some additional
material not included in the assembly kit delivered, such as
empty piping, cables, screws, plugs, etc. In order to avoid
undesirable oscillation, the wing should be stable and the
hinges should have as little play as possible. The more easily
the gate moves, the finer should the force adjustment be
made. Low-rigidity wooden gates should be reinforced with a
metal frame.
INSTALLATION OF THE UNIT -
1. The gate, and the arm, pivot about a point on the motor
housing (see Fig. 1-4). Mount the arm to which the gate
will be welded later; do not forget to place the ball in the
bearing.
2. Check the overall dimensions to ensure that you will have
enough room to dig out a hole for the motor housing. The
opening angle of the gate has an important influence on
the position of the motor housing (see Fig. 5-7).
The motor housing must be set in concrete. The piping for
the electrical wiring and the drainage should be borne in
mind in this connection (see Fig. 10). Remember that the
final dimensions of the installation (including plaster layer
etc.) determine the room available. The top of the motor
housing should be slightly higher than the concrete
surrounding it.
The concrete takes a couple of days to set completely.
You should aim at a strength rating of at least MG2a
according to DIN standards (normal strength).
3. Once the motor housing has been set in place, the gate
can be mounted on top of it. Additional hinges will certainly
be needed to ensure proper guidance.
4. The arm with the facilities for switching to manual
operation must be welded on to the gate. Turning the
special key in the hole provided for it switches the system
to manual operation so that the gate can be opened by
hand if necessary (see Fig. 1 and 8).
5. Stops must be mounted on the floor to limit the limit the
motion of the gate (see Fig. 9).
6. After all assembly work has been completed, it is advisable
to protect the motor housing against seepage of water with
the aid of a layer of silicone sealant.
TIPS FOR DRAINAGE A and B
If the drainage of the installation cannot be connected up to
the main drains, it may be possible to make use of a drainage
pit. The floor must be permeable to water, and the cover of
the motor housing should be protected against heavy rainfall
or surface water with silicone sealant. The drainage pit should
be dug out so as to be appreciably lower than the bottom of
the motor housing, and its capacity should exceed that of the
motor housing. The pit should be filled with coarse rubble or
gravel, and should be tiled to keep out sediment and water
from the top and sides. Facilities should be provided to lead
any water getting into the motor housing to this drainage pit.
ELECTRICAL CONNECTIONS
We recommend use of the control unit GOC1A
The coding of the connection terminals is as follows
N= neutral (blue)
L1= black – On or Off (change over if necessary)
L1= brown – On or Off (change over if necessary)
Do not forget to earth the system!
The capacitor must be connected between L1 and L2
(black and brown wires) in the control circuit, and must
be protected against water.
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10
9 1
GB-2