Armstrong 4280 - The Main Cover Disassembly

installation &
operating instructions
Design Envelope 4200h & 4280
End Suction Horizontal Pumping Units
13
1 2 3
4 5 6
2.3.3 the main cover disassembly
caution
When you remove the front cover, pay attention to
the wiring connection of the control board, unplug the
connection and remove completely the cover.
a
b
2.5
mm
warning
Before removing the system must be disconnected
from the mains supply. After switching o, wait for at
least 4 minutes for the capacitors to discharge before
opening the cover.
a
b
3
mm
power
from
mcc
ethernet
cable
router