Chamberlain GCU user manual

Summary of the content on the page No. 1

Model GCU
Gate Control Unit
Overview
Step 3
The Gate Control Unit (GCU) can be paired with the
NOTE: This step applies only if more than one GCU
Gate Access Panel (GAPLM) to wirelessly control a
is being used.
gate operator.
Up to four GCUs can be used. Each GCU will need a
The GCU is compatible with various Liftmaster
different Identity. Set the Identity of the GCU by
Wireless Products.
changing the Dipswitches as shown in the chart
below.
GCU ID Switch #1 Switch #2
1 OFF OFF
Carton Inventory
2

Summary of the content on the page No. 2

Operation Installation Step 5 Open/Close Gate To open a gate enter any valid PIN Number on GAPLM. For multiple GCU’s, enter the PINNumber followed by the GCU Identity (1-4). For a remote control transmitter, press the corresponding button for 3 seconds (within 75' of GAPLM). Replace GCU cover and mount On an Intercom, press the Remote button while near gate operator control box. talking to a visitor. At other times, hold the intercom’s Remote button for 10 seconds, to activate the Primary GCU. N

Summary of the content on the page No. 3

Gate Operator “ON”Time Troubleshooting There is an error tone when the GCU is activated. Dipswitches The GAPLM or DAILM is not communicating with the GCU. The GCU may be out of range. If the units work LED properly when close together, the GCU may need to Learn be mounted higher off the ground or on a different Button surface. Metal, trees, or masonry cause the most interference. If the units do not work when close together, the GAPLM or DAILM has not been programmed to the For most connection

Summary of the content on the page No. 4

FOR TECHNICAL SUPPORT DIAL OUR TOLL FREE NUMBER: 1-800-528-2806 www.liftmaster.com NOTICE: To comply with FCC and or Industry Canada rules (IC), adjustment or modifications of this receiver and/or transmitter are prohibited, except for changing the code setting or replacing the battery. THERE ARE NO OTHER USER SERVICEABLE PARTS. Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and