Merlin G950 Installation Instructions Manual
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Toll free helpline
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model name available before calling.
Australia 1800 638 234
New Zealand 0800 653 667
United Kingdom 0800 073 0112
www.merlingo.com
Installation instructions
remote control openers
security at your fingertips
G950
residential gate opener for swing gates
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Index
Important safety instructions for
installation
WARNING Incorrect installation can lead to severe injury. Follow all installation instructions.
Merlin Garage Openers Limited does not accept responsibility for damage or injury resulting from installing this opener.
Before installing the drive remove or disable any equipment, such as locks, that is not
needed for powered operation.
Before installing the drive check that the gate is in good mechanical condition and that it
opens and closes properly.
Do not use force sensitivity adjustments to compensate for a binding or sticking gate.
Excessive force may damage the gate.
Install any fixed control, wired or wireless, within sight of the gate but away from moving
parts and at a height of more than 1.5 m.
After installation, ensure that the mechanism is properly adjusted and that the drive stops
when the gate contacts an obstruction.
Site requirements
Gate
This opener is designed for residential swing gates up to 3 metres wide and less than 230
kg.
Using a spring balance, check that less than 15 kg force (150N) is required to manually
move the gate through its full range of movement. The gate should operate smoothly, opening and closing without sticking. Hinges should not have excessive play or friction.
Check the mounting points and hinges for strength and stiffness. Reinforce if necessary.
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Level and square the gate
The gate hinge pivot points should be perfectly parallel to a plumb line.
When closed, the gate leaves should line
up evenly and not bind against each other.
The leaves should not be damaged or bent.
Gate stops
It is recommended that any of the following are used:
- Overlapping gate leaves
- A tag on one gate
- Gate-stops at the limit of each leaf’s travel
Power supply
If the opener is to be mains-powered, then
the 3-pin power plug should be shielded
from the effects of weather.
The product is tested as a unit for electrical safety compliance and if the plug is cut
off for hard-wiring, then the electrical safety
of the unit becomes the responsibility of the installing electrician.
An isolating switch is recommended, but all mains wiring should be in accordance with local
regulations, for example AS/NZS 3000:2000.
Wiring
All wiring must be arranged to prevent water entering the controller enclosure.
Do not wire mains voltages and low voltage control wires in the same conduit.
Low voltage cable sizes
Voltage will drop along low voltage cables over long distances. It is recommended to use
cable with conductors of the following minimum cross sectional areas. The table lists lengths
for twin-core cable, from the supply to the load.
For an optional solar panel, consider the total length from the panel to the controller board,
through to the battery.
Follow the table for minimum recommended conductor sizes for given lengths for each
power option.
Cable length From 10 W solar panel From controller to each motor
to 12 V battery 12 V @ 4 A max
(for max 2% volt drop) (for max 5% volt drop)
3 m 1.0 mm
2
1.5 mm
2
5 m 1.0 mm
2
2.5 mm
2
10 m 1.0 mm
2
4.0 mm
2
15 m 1.0 mm
2
6.0 mm
2
20 m 1.0 mm
2
10 mm
2
25 m 1.5 mm
2
10 mm
2
30 m 1.5 mm
2
16 mm
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Battery power with trickle charging
Due to the high cost of long runs of heavy cable, it may be more economic in some installations to operate the gates from a larger battery, which is charged from a remotely located
trickle charger.
For example, a 12V 500 mA plug pack can be located at the house, with only light gauge
wiring to the gate, controller, and battery some distance away. Due to varying gate loads
and duty cycles for each installation, this is a guide only.
Mounting the operators to the gate posts
There should not be any visible flexing of
the mounting points under load.
To spread the load, all mounting holes
should be used.
Mount the opener 50 mm from the inside
edge of the gate post.
Use fasteners of at least 10 mm diameter
x 75 mm length.
Note the top face of the gate bracket aligns with the centres of the bottom mounting holes
of the opener.
Optional control box (standard in NZ)
Locate this in any convenient weather-protected position. All mounting holes and cable
entry or exits must be suitably sealed to prevent water from entering the enclosure. Cables
should exit the control box from below only.
1 Right hand opener (slave)
2 Left hand opener (slave)
3 Receiving IR sensor (3-wire)
4 Transmitting IR sensor (2-wire)
5 Push-button (must be rated suitably for the weather conditions)
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6 Keyed switch (must be rated suitably for the weather conditions)
7 Keypad (wireless control; optionally wired power supply)
8 Solenoid lock or latch (avail. for horizontal or vertical applications)
9 Enclosure for controller, receiver, and optional backup battery
NOTE The Merlin M122 wired push-button and M128 wireless push-button are
not waterproof, and are only rated for interior use.
The Merlin KWF1 keyed switch is not intended for use fully exposed to weather in
gate installations.
Merlin does not warranty any items used outside their published ratings or intended
use.
Master and slave operators (Australia only)
The Master operator has the controller board, transformer and optional back-up battery
inside it. Locate it on the side of the gate nearer to the power supply.
The Slave operator connects to the master by a two-core conductor carrying 12V.
1 Right hand opener (shown as master, but depends on site)
2 Left hand opener (shown as slave, but depends on site)
3 Receiving IR sensor (3-wire, Merlin M103)
4 Transmitting IR sensor (2-wire, Merlin M103)
5 Push-button (must be rated suitably for the weather conditions)
6 Keyed switch (must be rated suitably for the weather conditions)
7 Keypad (Merlin M840, wireless, optionally with wired power supply)
8 Solenoid lock or latch (avail. for horizontal or vertical applications)
NOTE The Merlin M122 wired push-button and M128 wireless push-button are
not waterproof, and are only rated for interior use.
The Merlin KWF1 keyed switch is not intended for use fully exposed to weather in
gate installations.
Merlin does not warranty any items used outside their published ratings or intended
use.
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