Danfoss APP W HC Series, Operation Manual

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Instruction | APP W HC 15 - 30 pumps
39
180R9410 | AQ282628894589en-000801 | IOM APP W HC 15-30 Pumps | 01.2022
1 . Flush inlet line before connecting the
pump, to remove possible impurities from
pipes, hoses etc .
2 . Connect pump inlet to inlet line and flush
the pump for 5 min . by means of the
internal flushing valve, to remove possible
impurities from pipes, hoses etc .
3 . Loosen top bleeding plug “C” (see item 3 .5)
using an allen key (only plugs with internal
hexagan sockets) . Retighten the plug, when
water APP W HC appears from the bleeding
plug .
4 . Make sure that the direction of rotation of
the electric motor corresponds to the direc-
tion of rotation of the pump (see label on
pump) .
5 . Now the pump is ready for start-up .
WARNING
Make sure that the direction of rotation of the
electric motor corresponds to the direction of
rotation of the pump (see label on pump).
Otherwise the pump will be damaged if a
check valve is placed between pump and feed
pump.
4. Initial start-up
O
I
Internal
flushing
valve
5. Operation 5.1 Temperature
Fluid temperature:
Min . +2°C to max . +50°C
(Min . +35 .6°F to max . +122°F)
Ambient temperature:
Min . +2°C to max . +50°C
(Min . +35 .6°F to max . +122°F)
In case of lower operating temperatures, please
contact Danfoss High Pressure Pumps .
The chart below illustrates the corrosive
resistance of different types of stainless steel
related to NaCl concentration and temperature .
The APP W HC water pump is made of Duplex
and Super Duplex .
If the water pump is operated above the Super
Duplex line, always flush water pump with fresh
water at operation stop in order to minimize the
risk of crevice corrosion .
NaCl vs. temperature
316L
Super Duplex
80 º
C
70
60
50
40
30
20
100
160 1600
1000
16000
10 000
160000
100 000
CI -
ppm
NaCI
ppm
Duplex