Front Door Assembly#
Standard Features
EC Fan motor
310mm diameter backward curved centrifugal fans with EC motors mounted with
inlet ring shall be provided to ensure optimum efciency.
The fan section shall be designed as a hot swap assembly which can be changed
quickly minimising downtime during replacement or maintenance. The assembly
incorporates a fan isolation switch to interrupt power before removal.
N+1 Fan Redundancy
The InRak has the option for N+1 redundancy. This runs the unit at 75% airow
under normal conditions. If a fan fails the remaining healthy fans speed up to
100% achieving the full design airow.
Optional Features
Condensate Pump
The following graphs illustrate the TOTAL static (head) pressure available. The system horizontal pipe losses and
vertical lift should be factored in when calculating the condensate pump performance.
IMPORTANT
Use only 10mm (3/8”) copper tube when connecting the discharge stub to the condensate pump. The discharge line
from the pump should rise no more than 6 metres vertically and no more than 8 metres in total length before being
interrupted with a swan neck air break and tundish.
0
2
4
6
8
10
12
14
0
2
6 8 10 12 14
4
16
18
Head / metre
Litres / min
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