43
30RQS/RQSY units use hermetic scroll compressors. Each
compressor is equipped with a crankcase oil heater, as
standard.
Each compressor sub-function is equipped with:
• Anti-vibration mountings between the unit chassis and
the chassis of the compressor sub-function.
• A single pressure safety switch at the discharge.
The compressors installed in these units have a specic oil
charge, indicated on the name plate of each compressor.
The oil level check must be done with the unit switched off,
when then suction and discharge pressures are equalised. The
oil level must be visible and above the middle of the sight-
glass in the oil equalisation line. If this is not the case, there
is an oil leak in the circuit. Search and repair the leak, then
recharge oil, so that it reaches a level between the middle and
three quarters of the sight-glass (unit in vacuum).
ATTENTION: Too much oil in the circuit can cause a unit
defect. R-22 oils are absolutely not compatible with R-410A
oils and vice versa.
NOTE: Use only oils which have been approved for the
compressors. Never use oils which have been exposed to air.
The 30RQS/RQSY coils are heat exchangers with internally
grooved copper tubes with aluminium ns. To prevent ice
formation at the bottom of the coils, electric heaters are
installed under the sheet metal base. They are switched on,
based on the outside temperature.
The fans are axial Flying Bird fans equipped with rotating
shroud and made of composite recyclable material. The
motors are three-phase, with permanently lubricated bearings
and insulation class F. See table below.
The EXV is equipped with a stepper motor (2625 + 160 /- 0
steps) that is controlled via the EXV board.
Located on the liquid line, permits control of the unit charge
and indicates moisture in the circuit. The presence of bubbles
in the sight-glass indicates an insufcient charge or non-
condensables in the system. The presence of moisture changes
the colour of the indicator paper in the sight-glass.
This is a one-piece, brazed lter drier, located in the liquid
line. The role of the lter drier is to keep the circuit clean and
moisture-free. The moisture indicator shows when it is necessary
to change the lter drier. The lter drier is a bi-ow device, that
means that it lters and dehydrates in both operating modes.
The pressure drop is much higher in the heating mode. A
difference in temperature between the lter inlet and outlet
shows that the element is dirty.
According to the Regulation No. 327/2011 implementing Directive 2009/125/EC with regard to ecodesign requirements for
fans driven by motors with an electric input power between 125 W and 500 kW.
%
Measurement category A A A
Static Static Static
N(2015) 40 N(2015) 40 N(2015) 40
No No Ye s
Year of manufacture
Fan manufacturer Simonin Simonin Simonin
Motor manufacturer
Fan reference 00PSG000000100A 00PSG000000100A 00PSG000000100A
Motor reference 00PPG000464500A 00PPG000464600A 00PPG000464700A
Nominal motor capacity kW
Flow rate m
3
/s
Pa
Speed rpm 710 1137
See service manual See service manual See service manual
See service manual See service manual See service manual
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