OPERATING CHECKS:
• IMPORTANT INFORMATION REGARDING THE
REFRIGERANT USED:
This product contains fluorinated greenhouse gas
covered by the Kyoto protocol.
Refrigerant type: R-410A
Global Warming Potential (GWP): 2088
WARNING:
1. Any intervention on the refrigerant circuit of this product
should be performed in accordance with the applicable
legislation. In the EU, the regulation is called F-Gas,
N°517/2014.
2. Ensure that the refrigerant is never released to the
atmosphere during installation, maintenance or equipment
disposal.
3. The deliberate gas release into the atmosphere is not
allowed.
4. If a refrigerant leak is detected, ensure that it is stopped
and repaired as quickly as possible.
5. Only a qualified and certified personnel can perform
installation operations, maintenance, refrigerant circuit
leak test as well as the equipment disposal and the
refrigerant recovering.
6. The gas recovery for recycling, regeneration or destruction
is at customer charge.
7. Periodic leak tests have to be carried out by the customer
or by third parties. The EU regulation set the periodicity
here after:
System WITHOUT
leakage detection
No
Check
12
Months
6 Months
3 Months
System WITH leakage
detection
No
Check
24
Months 12 Months 6 Months
Refrigerant charge/
circuit (CO
2
equivalent)
< 5 Tons
5 ≤
Charge
< 50 Tons
50 ≤
Charge
< 500 Tons
Charge
> 500
Tons
(1)
Refrigerant charge/
Circuit (kg)
R134A
(GWP 1430)
Charge
< 3.5 kg
3.5 ≤
Charge
< 34.9 kg
34.9 ≤
Charge
< 349.7 kg
Charge
> 349.7 kg
R407C
(GWP 1774)
Charge
< 2.8 kg
2.8 ≤
Charge
< 28.2 kg
28.2 ≤
Charge
< 281.9 kg
Charge
> 281.9 kg
R410A
(GWP 2088)
Charge <
2.4 kg
2.4 ≤
Charge
< 23.9 kg
23.9 ≤
Charge
< 239.5 kg
Charge
> 239.5 kg
HFO’s: R1234ze
No requirement
(1) From 01/01/2017, units must be equipped with a leakage detection system.
8. A logbook must be established for equipments subject to
periodic leak tests. It should contain the quantity and the
type of fluid present within the installation (added and
recovered), the quantity of recycled fluid, regenerated or
destroyed, the date and output of the leak test, the
designation of the operator and its belonging company,
etc.
9. Contact your local dealer or installer if you have any
questions.
PROTECTIVE DEVICE CHECKS:
•
If no national regulations exist, check the protective
devices on site in accordance with standard EN378:
once a year for the high pressure switches, every five
years for external relief valves.
The company or organisation that conducts a pressure switch test
must establish and implement detailed procedures for:
-
Safety measures,
-
Measuring equipment,
-
Values and tolerances for cut-off and discharge devices,
-
Test stages,
-
Recommissioning of the equipment.
Please contact Carrier Service for this type of test. The test
principle set out here by Carrier does not involve removal of the
pressure switch:
-
Verify and record the nominal values for activation of the
pressure switches and external relief devices (pressure relief
valves or rupture discs),
-
Be ready to switch off the main disconnect switch of the power
supply if the pressure switch does not trigger (avoid over-
pressure or excess gas if there are valves on the high
pressure side on the recovery air exchangers, for example),
-
Connect a pressure gauge protected against pulsations (filled
with oil with maximum pointer if mechanical), preferably
calibrated (the values displayed on the user interface may
be inaccurate in an instant reading because of the scanning
delay applied in the control)
-
Complete an HP Test as provided by the software (refer to
the Control IOM for details).
Caution: If the test results in the replacement of the pressure
switch, it is necessary to recover the refrigerant charge; these
pressure switches are not installed on Schrader type
automatic valves.
Visually inspect the protective devices (relief valves, pressure
switches) at least once a year.
If the machine operates in a corrosive atmosphere, inspect
the devices more frequently.
Check regularly for leaks and, if detected, have these repaired
immediately.
Regularly check that the vibration levels remain acceptable
and close to those at the initial machine start-up.
Before opening a refrigerant circuit, drain and consult the
pressure indicators.
After an equipment failure, replace the refrigerant in
accordance with a procedure such as that described in NF
E29-795, or have a refrigerant analysis carried out at a
specialist laboratory.
If the refrigerant circuit remains open after an intervention
(such as a component replacement, etc.):
• Seal the openings if the duration is less than a day;
• If more than one day, charge the circuit with a dry, inert
gas (e.g. nitrogen)
The objective is to prevent penetration of atmospheric
humidity and the resulting corrosion of the unprotected
internal steel walls.
1.4 -
Repair safety considerations
All parts of the system must be maintained by the personnel
responsible for such maintenance, in order to avoid any damage
or accidents. Faults and leaks must be repaired immediately. An
authorised technician must remedy the fault immediately. After
each repair of the unit, check the operation of all protective devices
and record operating readings for all parameters.
Comply with the regulations and recommendations given in the
safety standards for refrigerant systems and machines, such as:
EN 378, ISO 5149, etc.
If a leak occurs or if the refrigerant becomes contaminated (e.g.
by a short circuit in a motor or freezing of the BPHE), remove the
complete charge using a recovery unit and store the refrigerant
in mobile containers. The compressors cannot transfer the whole
refrigerant charge and can be damaged if used to pump-down.
The refrigerant charge should not be transferred to the high-
pressure side.
Detect and repair the leak, and recharge the circuit with the full
charge of R410A indicated on the unit's nameplate. Do not top up
the refrigerant charge. Only charge liquid refrigerant R-410A at
the liquid line.
Check the type of refrigerant before adding the full charge to
the machine.
1 - INTRODUCTION
6
Содержание Carrier 30RQM 160
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