Initial Start-Up; Operation; Temperature - Danfoss APP W HC Series Operation Manual

Instruction | APP W HC 15 - 30 pumps
4.

Initial start-up

5.

Operation

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.

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 .
NaCl vs. temperature
80 º
C
70
60
50
316L
40
30
20
100
160
180R9410 | AQ282628894589en-000801 | IOM APP W HC 15-30 Pumps | 01.2022
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 .
Duplex
Super Duplex
1000 10 000
1600 16000
O
I
Internal
flushing
valve
CI -
100 000
ppm
NaCI
160000
ppm
39