Installation And Commissioning; Important Dimensions; Cleanliness; Fluid Temperature - Danfoss PAHT Operation, Installation, And Maintenance Manual

Operation guide
5. Installation and
commissioning
10 | 180R9288_AQ109686503100en-001301
Installation, Operation and Maintenance Manual for PAHT 20-90 pumps

5.1 Important dimensions

Physical dimensions and connections of the
pump unit are described in appendix 1, Data
sheet.

5.2 Cleanliness

It is very important that the tubes and pipes are
completely clean: no dirt, chips or burrs are
allowed.
Flush all piping before connecting the high-
pressure pump to ensure the system is clean.
Internal surfaces of the piping must not be
corroded. If dirt or rust is not removed, the pump
and the valves can be damaged. In worst case the
pump can be damaged beyond repair!
Open system design
1
8
Closed system design (not applicable for PAHT 256-308)
Reservoir
Before start-up, the uid and pump housing
temperature must be within the speci ed
temperature range listed in appendix 1, Data
sheet.

5.4 Electrical data

Check voltage, current frequency and rated
power on the electric motor and VFD settings on
the name plate placed on both the motor and
the VFD.
Commissioning must always be done in
accordance with valid regulations and local
standards.
4 5
PI
3
PI
2

5.3 Fluid temperature

5.5 Local regulations

2 5 6
PI
SYSTEM
7
PI
System
1
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