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EXPERT LA
2.
MOUNTING INSTRUCTIONS
2.1
Installing the Controller on
the Wall
Fasten the two metal brackets on the mounting
holes located behind the controller using four
screws. Then, mount the enclosure on the wall us-
ing four other screws. Leave a clearance of at least
16" to the left of the enclosure to allow the cover
to be removed for maintenance.
2.2
Connections
2.2.1
Main Wiring
Refer to the wiring diagram enclosed with this
user's manual to connect the controller. Drill holes
at the bottom of the enclosure to pass the wires
and install watertight connectors to prevent water
from entering in the enclosure. Do not make any
holes at the side and top of the enclosure.
ALL WIRING MUST BE DONE BY AN
AUTHORIZED ELECTRICIAN AND MUST
COMPLY WITH APPLICABLE CODES,
LAWS AND REGULATIONS. MAKE
SURE POWER IS OFF BEFORE DOING
ANY WIRING TO AVOID ELECTRICAL
SHOCKS AND EQUIPMENT DAMAGE.
10
EXPERT LA rev.00
2.2.2
Alarm Connection
There are two types of alarms on the market. One
type activates when current is cut off at its input;
the other type of alarm activates when current is
supplied at its input. For an alarm of the first type,
use the NC terminal as shown on the wiring dia-
gram. For an alarm of the second type, use the
NO terminal.
2.2.3
Sensor Inputs
Sensors operate at low voltage and are isolated
from the supply. Make sure that sensor cables
remain isolated from all high voltage sources. In
particular, do not route the sensor cables through
the same electrical knockout as other cables. Do
not connect the shield from the sensor cable to a
terminal or a ground.
Extending a sensor:
Each sensor can be extended up to 500 feet
(150 meters). To extend a sensor, use a shielded
cable of outside diameter between 0.245 and 0.260
in (6.22 and 6.60 mm) (the cable dimensions should
not be under 18 AWG) to ensure the cable entry is
liquid tight. Do not ground the shielding.
It is preferable to solder the cable joint to ensure a
proper contact between the two cables.
Do not run sensor cables next to other
power cables. When crossing over
other cables, cross at 90°.
Defective sensors:
An alarm is generated when a defective sensor is
detected. Defective sensors are identified in the
"Alarm Log" menu. Refer to chapter 12 for fur-
ther information on the alarms.
2.2.4
0-10V Output Connection
It is recommended to use a 18 to 22 AWG wire to
connect the devices to 0-10V outputs. This type
of output can be used to connect various devices
such as inlets, fans or lighting equipment.
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