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For refrigerating line distances between 5 and 10 m, in-
crease the charge of the circuit as shown in the follow-
ing Tab. 17.
Tab. 17 --- Additional charge of R407C refrigerant ev-
ery metre of additional distance (between 5
and 10 m)
liquid line diameter
8 mm (outer side of the line)
10 mm (outer side of the line)
12 mm (outer side of the line)
Values applying with condensation T = 50° C
NOTE: Under distance is meant the length of the liq-
uid line, including the bends, between the internal and
the external units (do not sum inlet and outlet).
7.2 --- Oil charge
7.2.1 --- SC04, SC05 and SC06 units --- R407C
The oil to be used when topping up is TOTAL Lunaria
KVG--- 68; if TOTAL Lunaria KVG--- 68 is unavailable
use an oil with the same characteristics (see Tab. 18).
NEVER MIX DIFFERENT OILS TOGETHER.
CLEAN THE PIPING COMPLETELY BEFORE
CHANGING THE TYPE OF OIL USED.
8 --- Calibrations
The air conditioner has already been factory--- tested
and calibrated as described below.
COMPONENT
Low pressure switch
(LP)
High pressure switch
(HP)
Fan speed adjuster
(BV)
English
R407C refrigerant
charge (g/m)
30
53
70
CALIBRATIONS
STOP
: 1 bar
START : 2 bar
(fixed calibrations)
STOP
: 28 bar
START : 20 bar
(fixed calibrations)
SET.
: 16 bar
BAND P
: 3.8 bar
(For adjusting see the in-
structions enclosed on the
machine)
12
Tab. 18 --- Olio TOTAL Lunaria KVG--- 68 (standard
for SC04, SC05 and SC06 units --- R407C)
approx. specific weight (at 15_ C)
flash point (C.O.C.)
pour point
ENGLER viscosity at 50 _ C
copper corrosion (100 _ C, 3 hours) ASTM D130
7.2.2 --- SC08, SC10, SC13 and SC14 units --- R407C
The oil to be used when topping up is MOBIL EAL
ARCTIC 22CC; if MOBIL EAL ARCTIC 22CC is
unavailable use an oil with the same characteristics
(see Tab. 19).
NEVER MIX DIFFERENT OILS TOGETHER.
CLEAN THE PIPING COMPLETELY BEFORE
CHANGING THE TYPE OF OIL USED.
Tab. 19 --- Mobil Eal Arctic 22CC oil (standard)
approx. specific weight (at 15_ C)
flash point (C.O.C.)
pour point
viscosity index
viscosity at 40_ C
viscosity at 100_ C
It is therefore obvious that the taps of the compressor
must only be turned after the whole plant has been
subjected to a vacuum and partial filling.
automatic
reset
manual reset
pressing the
push button
:
0.88 kg/l
:
210_ C
:
---40 _ C
:
5.6 E
:
1
:
0.99 kg/l
:
245 _ C
:
<---54_ C
:
116
:
23.6 cST
:
4.7 cST
NOTES
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