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4. PRE - INSTALLATION ASSESMENT
4.1 Mechanical
The first decision regarding installation is whether the COBALT will be mortised or surface mounted to the door /
door frame. Mortise installation ensures a discrete solution as the lock and strike plate can be embedded into the
door and frame, however in some instances this is not possible. Glass doors for example require surface mounting
which is done with the aid of the YD30 housing. Whichever method is chosen it is important that the lock and strike
plate are aligned correctly. The strike plate has two openings to accept the dual bolt pins and centring these
openings with the bolt pins will ensure correct operation.
The COBALT can be installed vertically or horizontally but is not designed to be mounted in a floor cavity
firing upwards or in a wet environment.
4.2 Electrical
The first consideration is to establish where to run the wires and decide on what feedback is required from the lock.
There are a total of seven available connections; three are compulsory power connections whilst the remaining four
provide optional door and bolt position feedback. These optional connections can be integrated into access control
or alarm systems to provide full monitoring.
The correct gauge of wire needs to be chosen as voltage drop across the power wires (+ and -) can limit the locks
operation. For all the remaining connections, a lower gauge wire can be used as these are only signal wires. The
following chart shows the maximum distance that the power supply can be away from the lock, assuming the power
supplies output 12VDC or 24VDC:
AWG
24
22
20
18
16
14
5. INSTALLATION
Two installation examples are detailed on the following pages; mortise and surface, however any combination of
the two can be achieved. Whichever installation method is chosen it is vital to ensure that the lock face plate
and the strike plate align correctly and the gap between the lock face plate and strike plate does not
exceed 8mm when the door is closed.
5.1 Mortise Installation
A typical mortise installation is described on the flowing page, with the lock fitted into the door frame and the strike
plate secured into the door. It is possible to install the lock into the door and the strike plate into the frame however
with this method running wiring to the lock requires additional work.
© BQT Solutions (SEA) Pte Limited
MAXIMUM DISTANCE (m)
AREA (mm2)
12VDC
0.20
0.33
0.52
0.82
1.31
2.08
24VDC
7
20
11
32
17
51
27
82
43
130
69
206
Page 4
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