Lift-master 71-REDGRN-HCT User Manual
RED/GREEN LIGHT
MODIFICATION
FOR MODEL 71-REDGRN-HCT
FUNCTION
When the door is in motion, the timer circuit will activate
the red lamp holder and remain illuminated until door
reaches open or closed position. When the door reaches
the full open position, the timer circuit will activate the
green lamp holder and will remain illuminated based on
timer setting. When the door reaches the closed position,
the timer circuit will activate the red lamp holder and will
remain illuminated based on timer setting.
MOUNT THE LIGHT BOX
NOTE: If the operator requiring modification does not
contain required holes for light box mounting, it will be
necessary to add the holes. Use screws provided in kit for
mounting (Figure 1).
1. Disconnect power to the operator.
2. Attach the mounting bracket to the electrical box with the
self-tapping screws (2) provided.
3. Attach the light box assembly to the light box mounting
bracket. Secure in place with the self-tapping screws (2)
provided.
4. Connect conduit between light box assembly and
electrical box. Use the knockout hole shown on Figure 3.
NOTE: To avoid damage to relays, DO NOT EXCEED the
following:
• Red light - 75W, 120V incandescent bulb or 3A, 250Vac
(resistive load).
• Green light output - 75W, 120V incandescent bulb or 3A,
250Vac (resistive load).
• Conduit, wiring, and connectors should be sized and
installed per the national electric code.
To prevent possible SERIOUS INJURY or DEATH from
electrocution, disconnect electric power to operator
BEFORE installing.
ALL electrical connections MUST be made by a qualified
individual.
WARNING
Figure 1
Light Box
Mounting
Bracket
Conduit
2
INSTALLATION
MOUNT COMPONENTS
NOTE: For additional component mounting reference, see
Figure 2.
If the operator requiring modification does not contain
required pem studs for component mounting, it will be
necessary to add holes. Use screws provided in kit for
mounting (Figure 3).
1. Mount timer on the pem studs in the electric box using
the locknuts (2) provided.
2. Mount the relay assembly on the pem studs in the
electric box using the locknuts (4) provided.
3. Mount the auxiliary limit switches using existing switch
hardware; note that the auxiliary limit switches are
mounted on top of the existing limit switches.
NOTE: If actuator on existing switches has been bent for
adjustment, it may be necessary to bend actuator arms on
new switches.
Relay
Assembly
Auxillary
Limit Switches
Timer
(Shown From
Outside Box)
Figure 2
Figure 3
0.15 Diameter
(#25 Drill Size)
1"
1/2"
1-1/2"
4-5/8"
4" 1"
2-1/4"
Top of Box
0.15 Diameter
(#25 Drill Size)
Top of Box
3-11/16"
1/2"
1.5"
(8) Holes
0.15 Diameter
(#25 Drill Size)
Top of Box
Knockout for Conduit
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