Servicing And Maintenance; Dynaciat; Unit Maintenance And Servicing - CIAT DYNACIAT power LG Manuel D'instructions

19. SERVICING AND MAINTENANCE

19.1 DYNACIAT

power
Compressor
Water-cooled condenser
Evaporator
Nominal voltage
Voltage at terminals
Compressor input current
Oil level
Frost protection trigger
temperature
Mechanical inspection: tubes,
fastenings, etc.
Electrical connection tightness
check
Control check
Water flow rate check
H. P. safety disconnection check

19.2 Unit maintenance and servicing

19.2.1 Safety instructions
- Perform operating inspections in accordance with national
regulations.
- Do not climb on the machine; use a platform to work at the
necessary height.
- Do not climb on the copper refrigerant pipes.
- All work on the unit's electrical or refrigerant systems must be
carried out by a qualified authorised technician.
- Any opening or closing of a shut-off valve must be carried out
with the unit off.
- The liquid valve (located just before the dryer) must always
be opened completely when there is refrigerant in the circuit.
- Do not work on any electrical components without first
turning off the unit's main disconnect switch in the electrics
box. Although the compressor(s) is (are) turned off, the
power circuit remains energised until the unit cutoff switch is
opened. Other components may remain powered by external
controllers connected to the orange disconnect terminals on
the main terminal strip.
Disconnect the removable portion of these terminals before
commencing any work.
- The surfaces of the compressor and pipes may reach
temperatures of over 100°C and cause burns if touched.
Likewise, the surfaces of the compressor may in some cases
drop to freezing temperatures which can cause frostbite.
operating readings
Date/Time
Suction pressure
Intake temperature
Condensing pressure
Condensing temperature
Discharge inlet temperature
Liquid outlet temperature
Water inlet temperature
Water outlet temperature
Water inlet temperature
Water outlet temperature
Liquid inlet temperature
Evaporator outlet temperature
bar
°C
bar
°C
°C
°C
°C
°C
°C
°C
°C
°C
V
V
A
°C
m /h
3
bar
- It is therefore important to take special care when carrying out
maintenance work.
- Technicians working on the unit must wear the necessary
safety gear (e.g. gloves, eye protection, insulating clothing,
safety shoes).
19.2.2 Noise
It is also recommended that persons working near significant
sources of noise wear ear protection.
This ear protection should not in any way impede the wearing
of other protective equipment.
19.2.3 Oil
Oils for refrigeration units do not pose significant health
hazards if they are used in accordance with the precautions
for use:
- Avoid unnecessary handling of components lubricated with
oil. Use protective creams.
- Oils are inflammable, and must be stored and handled with
care. Disposable rags or cloths used for cleaning must be kept
away from open flames and disposed of in the appropriate
manner.
- Containers must be stored with their caps on. Avoid using oil
from an opened container stored under incorrect conditions.
EN - 18