ABB SCC-U, Manual

Page: 10 / 32

10 SCC-U UTILITY UNIT | OI/SCC-U-EN REV. B
5 Installation
Requirements for the installation site
Installation location
The environmental conditions should be observed (see Ambient
conditions).
The device should be installed near the gas analyzer and the
other connected devices.
The length of the delivered power supply cables is 2 meters.
Adequate air circulation
• Ensure adequate natural air circulation around the device.
• Avoid heat buildup.
Protection against adverse environmental conditions
The utility unit should be protected from:
• Cold
• Radiated heat, e.g. from the sun, kilns or boilers
• Temperature fluctuations
• Strong air movement
• Dust deposits and dust penetration
• Corrosive atmosphere
• Vibration
Ambient conditions
Ambient temperature
• Operation: 10 to 40 °C
•
Storage and transport: −25 to 60 °C
Relative humidity
≤ 75 % annual average
Installation location
• Indoors only
• Installation in general purpose environment only.
Construction
Design
19 in housing (3 height units)
Mounting
Rack mounting on mounting rails.
The gas and electrical con-nections are located on the rear
side of the housing.
Consider the distances from the wall during installation:
• Left- and right-hand side panels at least 35 mm,
• Rear panel at least 200 mm.
• A distance of at least 1 height unit from devices which
develop heat is required.
Housing material and color
Aluminum, front panel light gray (RAL 7035)
IP protection of housing
IP 20 according to EN 60529
Dimensions
See Dimensions on page 22.
Weight
Approx. 10 kg
Mounting
Installation in a 19 in cabinet / rack
1. If necessary, install mounting rails in the cabinet / rack.
2. Mount the utility unit in a 19 in cabinet / rack using 4 × M6
screws (not supplied).