CGAD-SVN02C-EN
27
Maintenance
Procedures
ATTENTION:
Mechanical cleaning must not be
performed in the Evaporator, once the
water flows through the vessel and
refrigerant gas flows inside the tubing.
Chemical Cleaningn
Chemical cleaning is the most satisfactory
means of removing deposits from the
tubes. In this treatment, the deposits are
dissolved and taken away by the
circulation of a chemical solution. The
condenser is made up of copper, steel,
and cast iron. With this information any
company that is specialized in water
treatment will be able to recommend a
chemical product to be used for this
purpose. If it is not possible to contract a
water treatment service, a chemical
product supplier could be consulted.
Cleaning on Evaporator
The evaporator is part of a closed circuit
that should not accumulate any amount of
encrustations or sediments.
The speed of the accumulation of layers
will increase with high temperature of
condensation and by water with a high
ratio of minerals. The formation of layers of
sediments in the tubes of condenser
water occurs due to a decrease in the flow
of water, a small difference in temperature
between the entering and leaving water,
and the condensing temperature that is
abnormally high. The condenser needs to
be always free of sediments in order to
keep its maximum efficiency. Even a very
fine layer along the surfaces of the tube
can diminish significantly the condenser's
heat transfer capacity.
CAUTION:
All the tests done on the pressure
regulator should be done with reliable
pressure gauges. These safety devices
are calibrated at the factory and sealed. If
violated, the warranty will be void.
!
The internal parts of the evaporator are
made of steel, polypropylene, and copper.
Do not use cleaning products that can
damage these components.
CAUTION:
!
A
B
CGAD 020
CGAD 025
CGAD 030
CGAD 040
CGAD 050
CGAD 060
CGAD 070
CGAD 080
CGAD 090
CGAD 100
CGAD 120
CGAD 150
EQUIPMENT
TORQUE
21 Nm
15 Nm
40 Nm
"All the materials used in the external
circulation system, quantity of cleaning
material, duration of the cleaning period,
and any other safety precautions needed
for handling the cleaning agent should be
approved by the company supplying the
chemical products used to execute the
service.
Specification of torque in pad bolts.
Summary of Contents for CGAD020
Page 36: ...CGAD SVN02C EN 36 Wiring Diagram Fig 17 Power and command wiring diagram CGAD 020C Sheet 1 2...
Page 52: ...CGAD SVN02C EN 52 Wiring Diagram Fig 33 Power and command wiring diagram CGAD 070C Sheet 1 2...
Page 60: ...CGAD SVN02C EN 60 Wiring Diagram Fig 41 Power and command wiring diagram CGAD100 Part I...
Page 61: ...CGAD SVN02C EN 61 Wiring Diagram Fig 42 Power and command wiring diagram CGAD100 Part II...
Page 62: ...CGAD SVN02C EN 62 Wiring Diagram Fig 43 Power and command wiring diagram CGAD100 Part III...
Page 63: ...CGAD SVN02C EN 63 Wiring Diagram Fig 44 Layout diagram CGAD100...
Page 64: ...CGAD SVN02C EN 64 Wiring Diagram Fig 45 Power and command wiring diagram CGAD120 Part I...
Page 65: ...CGAD SVN02C EN 65 Wiring Diagram Fig 46 Power and command wiring diagram CGAD120 Part II...
Page 66: ...CGAD SVN02C EN 66 Wiring Diagram Fig 47 Power and command wiring diagram CGAD 120 Part III...
Page 67: ...CGAD SVN02C EN 67 Wiring Diagram Fig 48 Layout diagram CGAD 120...
Page 68: ...CGAD SVN02C EN 68 Wiring Diagram Fig 49 Power and command wiring diagram CGAD150 Part I...
Page 69: ...CGAD SVN02C EN 69 Wiring Diagram Fig 50 Power and command wiring diagram CGAD150 Part II...
Page 70: ...CGAD SVN02C EN 70 Wiring Diagram Fig 51 Power and command wiring diagram CGAD150 Part III...
Page 71: ...CGAD SVN02C EN 71 Fig 52 Layout diagram CGAD150 Wiring Diagram...
Page 72: ...CGAD SVN02C EN 72 Wiring Diagram Fig 53 Layout diagram CGAD 100 125 150 with optionals...