2.
INSTALLATION AND COMMISSIONING
The CSC should be installed and commissioned by a competent technician.
DO NOT SWITCH ON THE POWER SUPPLY UNTIL THE COMMISSIONING
PROCEDURES HAVE BEEN COMPLETED.
2.1. LOCATION OF CONTROLLER
The controller must be installed in a position which is fairly clean and free from damp
and condensation.
Temperature and humidity limits must be obeyed.
Ambient Operating Temperature:
0
°
C to 50
°
C
Operating Humidity:
0 to 95% RH non condensing
A minimum of 150 mm clearance is required around the controller to allow access
for mounting, wiring, servicing and to avoid electrical interference from other devices
such as contactors.
2.2. WIRING PRECAUTIONS
•
On new installations all sensor cables must be screened with the screens
connected separately to the 0V earth point provided. An MICC earth plate is
provided for use if MICC cable is used.
•
When upgrading a CSC or CXC installation it is usually possible to use the
existing unscreened sensor wiring as long as the cable run is less than 100
metres and is sited more than 75mm from mains wiring runs.
•
The mains supply, 24Vac output, relay and triac output wiring must be run
separately from all the controller sensor and override inputs.
•
The controller must be located as far away as possible (minimum 150mm) from
any contactors or switches and their cables. This is to avoid any interference to
the controller.
•
No connections to the controller should be made whilst power is applied.
October, 03
CSC USER GUIDE
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