ETC Unison ERn Wall-mount Control Enclosure - Manual (Page 12)

8 Unison ® ERn Wall Mount Enclosure Installation Manual
Where to Install the Enclosure
The Unison External Processing Enclosure (ERn) can be wall (surface) mounted or rack
mounted depending on the rack mounting type ordered. For rack mounted installation
instructions reference the “ERn Rack Mount Enclosure Installation Manual” .
Surface mount the ERn enclosure on a load bearing wall, in an electrical closet or a room
with restricted public access. It is recommended that you install the rack at least 36”
(914.4mm) off the floor surface to ensure clear view of the Paradigm Architectural Control
Processor (P-ACP) for programming and general operation.
Clearance Requirements
Rack Dimensions and Weights
Installation Environment Requirements
• For your safety, you should install a circuit breaker cabinet or other readily accessible
input power disconnect device in the same area as the Unison External Processing
Enclosure. Breakers not in the same room must have a physical means to be locked off.
• A clean (not dusty), temperature controlled environment with the following conditions:
• ambient temperature of 32-104°F / 0-40°C
• ambient humidity of 10-90%, non-condensing
• Restricted public access to prevent tampering is recommended.
• All CE equipment is tested to EMC category B environment.
Rack Type Height Width Depth
Product
Weight
Shipping
Weight
inches mm inches mm inches mm lbs kgs lbs kgs
ERn2 - W 8.8 223 15.5 394 9.6 244 15 6.8 20 9.1
ERn4 - W 14.1 358 15.5 394 9.6 244 20 9.1 25 11.3
C A U T I O N : HVAC systems must at all times maintain the specified ambient temperature at the
Unison ERn enclosure.
152 mm
(6”)
394 mm
(15.5”)
914.4 mm
(36”)
Surface mount the ERn enclosure with:
• a minimum of 15.5” (394mm) front
clearance for proper door operation.
• a minimum of 6” (152mm) clearance
from the left and right sides from walls
or other equipment to allow proper
convection airflow in the enclosure.