UK BIGRAC GEN 24 - Flipbook - Page 67
COMMERCIAL
COMMERCIAL INDEX
Panasonic is doing its part.
We at Panasonic are also doing our part – recognising that
all finances are under pressure at the moment. Panasonic
has developed a clean and cost effective solution to enable
this latest legislation to offer less financial impact on your
business.
The Panasonic renewal system allows good quality
existing R22 or R410A pipe work to be re-used whilst
installing high efficiency R32 systems.
By bringing a simple solution to the problem Panasonic
can renew all Split Systems and PACi systems; and
depending upon certain restrictions we don’t even limit
the manufacturer’s equipment we are replacing.
By installing a high efficiency Panasonic R32 system you
can benefit from around 30% running cost saving compared
to the R22 system.
Yes…
1. Check the capacity of the system you wish to replace
2. Select from the Panasonic range the best system to
replace it with
3. Follow the procedure detailed in the brochure and
technical data
Simple…
Why renewal?
Unique R22 Renewal from Panasonic: Fast, easy to install
and cost effective.
· Panasonic refrigerant oil doesn’t react to the most
common oil types used in air-conditioning systems. This
ensures the mix of oil does not damage the units.
Therefore installations are easier
Reuse of existing piping (renewal design and installation)
Notes on reuse of existing refrigerant piping.
It is possible for each series of PZH and PZ series outdoor
unit to reuse the existing refrigerant piping without
cleaning when obtained under certain conditions. Make
sure that the requirements under the section “Notes on
reuse of existing refrigerant piping”, “Measurement
procedure for renewal” and “Refrigerant piping size and
allowable piping length” will be satisfied in order to carry
out.
Also, check the items with regard to section “Safety” and
“Cleaning”.
1. Prerequisite.
· If the refrigerant used for the existing unit is other than
R22, R407C and R410A / R32, the existing refrigerant
piping cannot be used.
· If the existing unit has another use than air conditioning,
then existing refrigerant piping cannot be used.
2. Safety.
· If there is a hollow, crack or corrosion on the piping,
make sure to install new piping.
· If the existing piping is other than capable of reuse of
piping as shown in the flowchart, make sure to install
new piping.
· In case of multiple operation, use our genuine branch
piping for refrigerant R32.
· All Panasonic PACi units can be installed in R22 pipings,
no specific models are available
· Up to 33 Bar! When there is any doubt about the strength
of the piping, the maximum working pressure can be
reduced to 33 Bar with a setting in the software of the
outdoor unit
3. Cleaning.
· When the refrigerant oil used for the existing unit is
other than the listed below, make sure to install new
piping or wash it thoroughly before reusing it.
[Mineral Oil] SUNISO, FIORE S, MS
[Synthesized oil] alkyl benzene oil (HAB, parallel freeze),
ester oil, ether oil (PVE only)
If the existing unit is GHP type, it is necessary to wash the piping thoroughly.
· If the existing pipes in the outdoor and indoor units
remain disconnected, make sure to install a new piping
or wash it thoroughly before reusing it.
· If the discoloured oil or residue remains in the existing
piping, make sure to install a new piping or wash it
thoroughly before reusing it. See “Deterioration Criteria
for Refrigerant Oil” in table 3.
· If the compressor of the existing air conditioner has a
failure history, make sure to install a new piping or wash
it through thoroughly before reusing it.
When reusing the existing piping as it is without removing dirt and dust, inadequate piping could
result a renewal appliance in failure.
A local supplier shall assume responsibility for the defects and hollows on the reuse of existing
piping surface and recognition of reliability of the piping strength. There is no guarantee that we
take responsibility for such damages.
The operational pressure of the refrigerant R32 becomes higher compared to R22 or R410A. In the
worst case, a lack of compressive strength may lead to piping explosion.
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