Operating instructions
9
Operating checks:
Important information regarding the refrigerant used:
This product contains fluorinated greenhouse gas covered
by the Kyoto protocol.
Refrigerant type: R-134a
Global Warming Potential (GWP): 1300
Periodic inspections for refrigerant leaks may be required
depending on European or local legislation. Please contact
your local dealer for more information.
During the life-time of the system, inspection and tests
must be carried out in accordance with national regulations.
The information on operating inspections given in annex
C of standard EN378-2 can be used if no similar criteria
exist in the national regulations.
Safety device checks (annex C6 – EN378-2): The safety
devices must be checked on site once a year for safety
devices (high-pressure switches), and every five years for
external overpressure devices (safety valves).
For a detailed explanation of the high pressure switch test
method contact Carrier Service.
Do not attempt to repair or recondition any safety devices
when corrosion or build-up of foreign material (rust, dirt,
scale, etc.) is found within the valve body or mechanism.
If necessary, replace the device.
Do not install safety valves in series or backwards.
Provide a drain connection in the vent line near each
pressure relief device to prevent a build-up of condensate
or rain water.
These products incorporate equipment or components under
pressure, manufactured by Carrier or other manufacturers.
We recommend that you consult your appropriate national
trade association or the owner of the equipment or compo-
nents under pressure (declaration, re-qualification, re-testing,
etc.). The characteristics of this equipment/these components
are given on the nameplate or in the required documenta-
tion, supplied with the products.
All installation parts must be maintained by the personnel in
charge, in order to avoid material deterioration and injuries
to people. Faults and leaks must be repaired immediately.
The authorised technician must have the responsibility to
repair the fault immediately. Each time repairs have been
carried out to the unit, the operation of the safety devices
must be re-checked.
If a leak occurs or if the refrigerant becomes polluted (e.g.
by a short circuit in a motor) remove the complete charge
using a recovery unit and store the refrigerant in mobile
containers. Repair the leak detected and recharge the
circuit with the total R-134a charge, as indicated on the
unit name plate.
Do not siphon refrigerant.
Avoid spilling liquid refrigerant on skin or getting it into
the eyes. Use safety goggles and safety gloves. Wash any
spills from the skin with soap and water. If liquid
refrigerant enters the eyes, immediately flush eyes with
water and consult a doctor.
Never apply an open flame or live steam to a refrigerant
cylinder. Dangerous overpressure can result. If it is
necessary to heat refrigerant, use only warm water.
DANGEROUS AND ILLEGAL: Do not reuse disposable
(non-returnable) cylinders or attempt to refill them. When
cylinders are emptied, evacuate remaining gas pressure,
loosen the collar and unscrew and discard the valve stem.
Do not incinerate.
After refrigerant draining operations, check the refrigerant
type before adding refrigerant to the machine. The intro-
duction of the wrong refrigerant can cause damage or
malfunction to this machine.
Any use of these chillers with a different refrigerant must
be in accordance with applicable national standards.
Do not attempt to remove connections, components etc.,
while the machine is under pressure or operating. Make
sure that the pressure is 0 kPa, before disconnecting the
refrigerant connections.
ATTENTION: No part of the unit must be used as a
walkway, rack or support.
Periodically monitor and repair or if necessary replace
any component or piping that shows signs of damage.
Do not climb over a machine. Use platform, or staging.
Use mechanical equipment (crane, hoist, etc.) to lift or
move heavy components. Even if components are light,
use mechanical equipment when there is a risk of slipping
or losing your balance.
Do not use eyelets to lift any part of the machine or the
complete machine.
ATTENTION: Be aware that certain automatic start
arrangements can engage cooling tower fan or pumps.
Use only repair or replacement parts that meet the code
requirements of the original equipment.
Do not vent or drain waterboxes containing industrial
brines, without the permission of your process control group.