Unicla UP-170 - System Oil and Storage; System Oil Quantity; Oil Type and Grade

13.
System oil quantity
Oil type and grade
Storage guidelines
I. Evacuate compressor for 3 minutes and ll with nitrogen (N
2
) at 0.1 ~ 0.2 MPa.
II. Place the compressor in a clean and dry area with low humidity and tag with details.
III. Keep compressor away from direct sunlight.
IV. Store the compressor horizontally on a at, even surface.
V. Do not store the compressor in temperatures above 30˚C.
VI. Place the compressor in a well ventilated area to avoid corrosion damage.
*The contents of this manual are subject to change without prior notice.
The correct amount of oil must be maintained in the compressor and system. Long hose runs
and dual evaporator systems must have additional oil added to the system. Severe oil starvation
problems may result from insucient system oil being allowed. To determine oil quantity
required, Unicla recommends a calculation as a percentage of refrigerant charge as follows:
• 20% for all A-group compressors (90-170cc) in standard applications where the
suction and discharge lines are less than 6 metres in length.
• 30% for all A-group compressors (90-170cc) in applications where suction and
discharge lines exceed 6m in length.
Example: Calculate oil charge as 20% of refrigerant charge, 2 kg charge = 2000 g x 20% = 400
ml (cc) of oil. If tting a UP/UX170 compressor, then deduct the compressor initial oil charge to
determine amount of oil to be added. Therefore 400 – 160 = 240cc oil to be added to system.
Each Unicla A-Group compressor is tted with either PAG oil (Unidap 7) or POE oil (Unidap 3 is
tted to F-series compressors). When adding oil to the system, Unicla oil must be used.
Warranty is void if these guidelines are not followed.
The following labels will determine the type of oil in each A-group or F-series compressor:
POE type
(fitted to F-series
compressors)
PAG type
Compressor
Model
Refrigerant Oil Type
(Unicla)
Viscosity
@ 40˚C
Viscosity
@ 100˚C
Application Low side
Saturation
Oil
Separator
UP/UX
90/120/150/170
R134a Unidap 7 48.01 10.51 Airconditioning > 0˚C Optional
UPF
90/120/150/170
R404a Unidap 3 32.5 5.8 Airconditioning >15˚C Required