Altitude; Cleanness; Cooling System - HP A-F5000 Installation Manual

Altitude

Table 3 Altitude requirements
Item
Operating altitude
Storage altitude

Cleanness

Dust buildup on the chassis may result in electrostatic adsorption, which causes poor contact of metal
components and contact points, especially when indoor humidity is low. In the worst case, electrostatic
adsorption can cause communication failure.
Table 4 Dust concentration limit in the equipment room
Substance
Dust particles
NOTE:
Dust particle diameter ≥ 5 μm
The equipment room must also meet strict limits on salts, acids, and sulfides to eliminate corrosion and
premature aging of components, as shown in
Table 5 Harmful gas limits in an equipment room
Gas
SO
2
H S
2
NH
3
Cl
2

Cooling system

The A-F5000 firewall adopts left to right airflow for heat dissipation.
Altitude
–60 m (–196.85 ft) to 4 km (2.49 miles)
–60 m (–196.85 ft) to 4.5km(2.8 miles)
Concentration limit (particles/cu m)
≤ 3 x 10 4
(No visible dust on desk in three days)
Table 5.
Max. (mg/m 3 )
0.2
0.006
0.05
0.01
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