Operation Manual

3. Installation
C SERIES Operation Manual rev 2.0.0
9
3. Installation
3.1. Unpacking
Carefully open the shipping carton and check for any noticeable damage. Every LAB GRUPPEN amplier is tested
and inspected before leaving the factory and should arrive in perfect condition. If any damage is discovered, please
notify the shipping company immediately. Only the consignee may institute a claim with the carrier for damage
incurred during shipping. Save the carton and packing materials for the carrier’s inspection. Should you ever need
to ship the amplier, always use the original packaging materials.
3.2. Mounting
The amplier is two rack units high (2U) and will t into a standard EIA 19” rack. The depth is 343 mm (13.5”).
The weight is approximately 8.5 kg (18.75 lbs.) depending on model type.
Free airow from front-to-rear of the amplier must be possible. Therefore, no doors or rack-lids should be
mounted in front of or behind the ampliers.
Ampliers may be stacked directly on top of each other. There is no need for spacing in between units, though this
might enable more convenient installation of cabling on the rear panel.
3.3. Cooling
The amplier uses a forced-air cooling system with air ow from front to rear, maintaining a low operating
temperature within dened limits. Front-to-rear airow is preferred as cooler air is present at the front in nearly all
applications. (This allows higher continuous power levels without encountering thermal problems.) Never attempt
to reverse the airow. The amplier modules require a pressure chamber between the fans and heat sink, and this
effect functions only in one direction.
Make sure that there is an adequate air supply in front of the amplier, and that the rear of the amplier has
sufcient space to allow the exhaust to escape. If the amplier is rack-mounted, do not use covers or doors on the
front or rear of the rack.
Should a heat sink overheat, the temperature sensing circuits will mute the overheating channel. If the power
supply overheats, another sensing circuit will mute all output channels until the power supply cools to safe
operating temperature. An early warning before shut down will be indicated on the front panel LEDs, and a warning
will be sent through the NomadLink network.
Always make sure that the dust-lters behind the detachable front panel are clean to ensure maximum possible
airow.
NOTE: If the amplier malfunctions due to dirty dust lters, any required repairs are not covered by
the warranty.