ENGLISH
7
several times. Compressed air or oxygen shall not be used for
this task.
Flushing shall be achieved by breaking the vacuum in the sys-
tem with OFN and continuing to fill until the working pressure is
achieved, then venting to atmosphere, and finally pulling down
to a vacuum. This process shall be repeated until no refrigerant
is within the system. When the final OFN charge is used, the
system shall be vented down to atmospheric pressure to en-
able work to take place.
This operation is absolutely vital if brazing operations on the
pipe-work are to take place. Ensure that the outlet for the vacu-
um pump is not close to any ignition sources and there is venti-
lation available.
15. Refrigerant Charging procedures
In addition to conventional charging procedures, the following
requirements shall be followed.
- Ensure that contamination of different refrigerants does not
occur when using charging equipment. Hoses or lines shall
be as short as possible to minimise the amount of refrigerant
contained in them.
- Cylinders shall be kept upright.
- Ensure that the refrigeration system is earthed prior to charg-
ing the system with refrigerant.
- Label the system when charging is complete (if not already).
- Extreme care shall be taken not to overfill the refrigeration
system.
Prior to recharging the system it shall be pressure tested with
OFN. The system shall be leak tested on completion of
charging but prior commissioning. A follow up leak test shall
be carried out prior to leaving the site.
16. Decommissioning
Before carrying out this procedure, it is essential that techni-
cian is completely familiar with the equipment and all its detail.
It is recommended good practice that all refrigerants are recov-
ered safely. Prior to the task being carried out, an oil and refrig-
erant sample shall be taken in case analysis is required prior to
reuse of reclaimed refrigerant. It is essential that electrical pow-
er is available before the task is commenced.
Become familiar with the equipment and its operation.
a) Isolate system electrically.
b) Before attempting the procedure ensure that: mechanical
handling equipment is available, if repaired, for handling re-
frigerant cylinders; all personal protective equipment is
available and being used correctly; the recovery process is
supervised at all times by a competent person; recovery
equipment and cylinders conform to the appropriate stan-
dards.
c) Pump down refrigerant system, if possible.
d) If a vacuum is not possible, make a manifold so that refrig-
erant can be removed from various parts of the system.
e) Make sure that cylinder is situated on the scales before re-
covery takes place.
f) Start the recovery machine and operate in accordance with
manufacturer’s instructions.
g) Do not overfill cylinders (No more than 80% volume liquid
charge).
h) Do not exceed the maximum working pressure of the cylin-
der, even temporarily.
i) When the cylinders have been filled correctly and the pro-
cess completed, make sure that the cylinders and the
equipment are removed from site promptly and all isolation
valves on the equipment are closed off.
j) Recovered refrigerant shall not be charged into another re-
frigeration system unless it has been cleaned and checked.
17. Labeling
Equipment shall be labeled stating that it has been decommis-
sioned and emptied of refrigerant. The label shall be dated and
signed. Ensure that there are labels on the equipment stating
the equipment contains flammable refrigerant.
18. Recovery
When removing refrigerant from a system, either for servicing
or decommissioning, it is recommended good practice that all
refrigerants are removed safely.
When transferring refrigerant into cylinders, ensure that only
appropriate refrigerant recovery cylinders are employed.
Ensure that the correct number of cylinders for holding the total
system charge are available. All cylinders to be used are de-
signed for the recovered refrigerant and labeled for that refrig-
erant (i.e. special cylinders for the recovery of refrigerant).
Cylinders shall be complete with pressure relief value and as-
sociated shut-off values in good working order. Empty recovery
cylinders are evacuated and, if possible, cooled before recov-
ery occurs.
The recovery equipment shall be in good working order with a
set of instructions concerning the equipment that is at hand
and shall be suitable for the recovery of flammable refrigerants.
In addition, a set of calibrated weighing scales shall be avail-
able and in good work order. Hoses shall be complete with
leak-free disconnect couplings and in good condition.
Before using the recovery machine, check that it is in satisfac-
tory working order, has been properly maintained and that any
associated electrical components are sealed to prevent ignition
in the event of a refrigerant release. Consult manufacturer if in
doubt.
The recovered refrigerant shall be returned to the refrigerant
supplier in the correct recovery cylinder, and the relevant Waste
Transfer Note arranged. Do not mix refrigerants in recovery
units and especially not in cylinders.
If compressors or compressor oils are to be removed, ensure
that they have been evacuated to an acceptable level to make
certain that flammable refrigerant does not remain within the
lubricant. The evacuation process shall be carried out prior to
returning the compressor to the suppliers. Only electric heating
to the compressor body shall be employed to accelerate this
process. When oil is drained from a system, it shall be carried
out safely.
19. Transport of equipment containing flammable refrigerants
Determined by local regulations.
20. Discarded appliances supplies flammable refrigerants
See National Regulations.
21. Storage package (unsold) equipment
Storage package protection should be constructed such that
mechanical damage to the equipment inside the package will
not cause a leak of the refrigerant charge.
The maximum number of pieces of equipment permitted to be
stored together will be determined by local regulations.
10. SPECIFICATIONS
Model
TD-C 1410
TD-C 1412
Capacity
10 L/D (30°C, 80% RH) 12 L/D (30°C, 80% RH)
Power Supply
220-240 V ~ / 50 Hz
220-240 V ~ / 50 Hz
Power Consumption
205 W
210 W
Operating Range
7° C - 35° C
7° C - 35° C
Refrigerant
R290 (45g)
R290 (50g)
GWP
3
3
Weight
9,8 kg
10,5 kg
Pressure (high / low)
1.8 / 0.6 Mpa
1.8 / 0.6 Mpa
Pressure (max)
3.00 Mpa
3.00 Mpa
Unit Protection
IPX1
IPX1
The dehumidification capacity is rated at a room temperature of
30°C with a relative humidity of 80%.
If specifications are improved after this pointing, the product name-
plate will reflect the new specifications.
The operational temperature is in the range of 7°C to 35°C
and max relative humidity of 80%. If the room temperature is
outside of this range, the unit will not operate normally. GWP
value of R290 refrigerant is 3.
