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 In the "Air
Family" set of software, REFRIBASE is at a "beginners" level of difficulty,
REFREPAIR (which continues where REFRIBASE leaves off) is at an "intermediate"
level, and REFRIDIAG (which follows on from REFREPAIR) is at a "qualified"
User level.
Using
this comparison, HYDRAUREPAIR, the second program of the "Water Family",
is at an "qualified" level.
Prior
knowledge of refrigerating systems is not absolutely necessary, but we
would highly recommend acquiring some basic notions with CHILREPAIR, for
example.
Installation of a small liquid chiller with
a
series
of terminal units.
Installation of the expansion chamber.
Safety valve. Operating pressure.
Pressure heads in a closed circuit. Pressure drop across
the evaporator. Relationship between flow and pressure.
Pump curves.
Total Head of a pump.
The total pressure drop across the system.
Plant room with an Air Handling Unit.
Connect the chiller unit to the chilled water system.
Installation of a 3-way valve.
Installation of the circulator
and
expansion chamber.
Circulator graph, network graph and adjustment of the circulator speed.
Primary circuit with
2 secondary circuits.Pressure-break
cylinder. NPSH of a pump.
Cavitaion in pumps.
Multistage
pump.
Installing a dry-cooler.
Glycol
solution. Open cooling tower.
Indirect
cooling tower. etc.
The
wide diversity of the situations presented means that fast and accurate
diagnostic skills are acquired.
Real-time
auto-correction enables a beginner technician to progress entirely unaided,
ensuring that progress is as rapid as it is spectacular.
If
a User has little or no knowledge of refrigeration systems, it is recommended
that they start by using REFRIBASE and then REFREPAIR before trying to
get to grips with CHILREPAIR.
When a User obtains a good score using HYDRAUREPAIR,
and completes every step entirely on his own, he should be able to
diagnose most of the usual hydraulic repairs that he is likely to come
across in the plant room.
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