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11 - MAJOR SYSTEM COMPONENTS
11.1 - Compressors
61AF units use hermetic scroll compressors with vapour injection.
Each compressor is equipped with a crankcase oil heater, as
standard. Each compressor function is equipped with:
■ Anti-vibration mountings between the unit chassis and the
compressor(s).
■ A single pressure safety switch at the discharge.
11.2 - Lubricant
The compressors installed in these units have a specific 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 may be 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. Use only oils which have been approved for the
compressors. Never use oils which have been exposed to air.
R-22 oils are absolutely not compatible with R-407C oils and
vice versa.
11.3 - Air evaporators
The 61AF coils are air evaporators with internally grooved copper
tubes with aluminium fins..
11.4 - Fans
Axial Flying Bird fans equipped with a rotating shroud and made of
composite recyclable material. The motors are three-phase, with
permanently lubricated bearings and insulation class F. See table
below.
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.
Product/ Option
Overall efficiency
%
Measurement category
Efficiency category
Energy efficiency
target N(2015)
Efficiency level at
optimum efficiency
point
Variable speed drive
Year of manufacture
Fan manufacturer
Motor manufacturer
Fan PN
Motor PN
Nominal power of the
kW
motor
Flow rate
m
/s
3
Pressure at optimum
Pa
energy efficiency
Nominal speed
rpm
Specific ratio
61AF Standard
61AF standard
with option 11
36,6
38,0
A
static
static
N(2015) 40
N(2015) 40
43,3
37,4
NO
See label on the
See label on the
unit
Simonin
Simonin
A,O, Smith/Regal
A,O, Smith/Regal
Beloit
Beloit
00PSG000000100A 00PSG000000100A
00PPG000478400A 00PPG000480800A
0,88
2,09
3,59
4,07
90
710
1,002
1,002
Product/ Option
Relevant information to
facilitate the
disassembly,
recycling or removal of
the
product at the end of
life
Relevant information to
minimise impact on the
environment
11.5 - Electronic expansion valve (EXV) of the main
circuit
The EXV is equipped with a stepper motor that is con-trolled via
the EXV board.
11.6 - Electronic expansion valve (EXV) of the
economised circuit
The EXV is equipped with a stepper motor that is con-trolled via
the EXV board
11.7 - Four-way valve
The four-way valve allows the reversal of the refrigerant cycle,
required during the unit defrost phases.
11.8 - Moisture indicator
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 insufficient charge or non-condensables
in the system. The presence of moisture changes the colour of
the indicator paper in the sight-glass.
11.9 - Filter drier
One-piece, brazed filter drier, located in the liquid line. The filter
drier keeps the circuit clean and moisture-free. The moisture
indicator shows when the filter drier to be changed. A difference
in temperature between the filter inlet and outlet shows that the
element is dirty.
According to the Regulation No. 640/2009 and amendment 4/2014
implementing Directive 2009/125/EC with regard to ecodesign
A
requirements for electric motors.
Product/ Option
Motor type
NO
Number of poles
unit
Nominal input frequency
Nominal voltage
Number of phases
Motor included in the
application domain of the
regulation 640/2009 and
amendment 4/2014
Sales leaflet for exemption
Ambient air temperature for
which the motor is
specifically designed
195
966
61AF Standard
61AF standard
with option 11
See service manual See service manual
See service manual See service manual
61AF
standard
with option
Asynchrone
Asynchrone
bi-vitesse
8
Hz
50
V
400
3
Non
Article 2,1
°C
68,5
61AF
Standard
11
bi-vitesse
6
50
400
3
Non
Article 2,1
68,5
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