Manual
Cooling
The ESR2800 Amplier has a comprehensive cooling system featuring chassis sealed PCB board mounting and shock
mounted, speed controlled fans. This means that the cooling system never drives air across PCB boards, connectors or
components, ensuring prolonged electronic component lifespan and minimizing maintenance cycles.
Air is drawn into the front of the amplifer by the two fans on the rear panel, this passes over the cooling fans of the heat
sinks and exhausts through the rear. If the heat sink gets too hot, its sensing circuit will open the output relay, discon-
necting the load.
It is important to have an adequate air supply at the front of the amplier, and enough space around the rear of the
amplier to allow the cooling air to escape. If the unit is rack mounted, do not use doors or covers on the rear of the rack,
the exhaust air must ow without restriction. If you are using racks with closed backs, use fans on the rear
rack panel to ensure an ample air supply.
NOTE: The lters at the top and bottom of the front panel must be kept clean and free of dust and dirt to allow full
operation-CHECK PERIODICALLY
AC Requirements
Two PowerCon cables are provided to connect the ESR2800 Amplier to a suitable AC power supplies. Each cable powers
each separate amplier channel for sucient current delivery.
The PowerCon is a connector without breaking capacity, i.e. the PowerCon should not be connected or disconnected
under load or while it is live. Always isolate your AC supply before disconnecting the PowerCon connector.
The ESR2800 amplier operates in either 115V, 230V or 250V modes. Although pre-congured at the factory, the unit's
operating voltage mode can be changed in the eld. Amplier power plug must remain readily operable.
Your amplier will be supplied preset to the voltage used in your area. The table below provides typical current draw
gures for the ESR2800 Amplier.
The receptacle must be connected to a fuse or circuit breaker. Connection to any other type of receptacle poses a shock
hazard and may violate local electrical codes.
Do not allow water or any foreign object to get inside the amlier. Do not put objects containing liquid on or near tne unit.
To reduce the risk of overheating the amplier, avoid exposing it to direct sunlight. Do not install the unit near heat-emit-
ting appliances, such as a room heater or stove. this amplier contains potentially hazardous voltages. Do not attempt to
disassemble the unit. The unit contains no user serviceable parts, repairs should be performed only by factory trained
service personnel.
Current draw of ESR2800 Amplier
Getting started
AC Input Current draw with amplier running at
Average Power (Each Channel)
Current draw with amplier running at
Peak Power (Each Channel)
250V 3.2A 5A
230V 3.5A 5.4A
115V 7A 11A
ESR2800
Getting started
6