IBM RS/60000 Series Site And Hardware Planning Information page 220

The following table lists maximum operating temperatures for system features at various altitudes.
0
FC 6120 28°C
(82°F)
FC 6134 26°C
(79°F)
202
Site and Hardware Planning Information
305 m 610 m
(1000 ft) (2000 ft)
27°C 27°C
(81°F) (81°F)
25°C 25°C
(77°F) (77°F)
914 m 1219 m
(3000 ft) (4000 ft)
26°C 26°C
(79°F) (79°F)
24°C 24°C
(75°F) (75°F)
1524 m 1829 m
(5000 ft) (6000 ft)
25°C 24°C
(77°F) (75°F)
23°C 22°C
(73°F) (72°F)
2134 m
(7000 ft)
24°C
(75°F)
22°C
(72°F)