United Technologies Carrier 30RQM 160, Installation, Operation And Maintenance Instructions

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9 - MAIN COMPONENTS OF THE UNIT AND OPERATING CHARACTERISTICS
9.1 - Compressors
30RQM/30RQP units use hermetic scroll compressors. Each
compressor is equipped as standard with a crankcase oil heater,
and with a head heater for certain configurations. There is no
heater fault detection.
Each compressor sub-assembly has:
-
Anti-vibration mountings between the unit chassis and the
chassis of the compressor sub-assembly,
-
Restrictors (not visible) on the suction pipes (for 3 and 4
compressor modules) to ensure oil level equalisation between
all compressors,
-
A safety pressure switch at the discharge line of each circuit,
-
Pressure and temperature sensors at the common suction
line and a pressure sensor at the common discharge line,
-
A suction shut-off valve.
9.2 - Lubricant
The compressors installed on the units have an oil charge of 6.9
l, ensuring good lubrication under all operating conditions. The oil
level check can be performed:
-
Upon installation: The oil level must be greater than or equal
to half of the sight glass.
-
Within a few minutes of the shut-down of a compressor sub-
assembly: oil must be visible in the sight glass.
If this is not the case, there might be a leak or an oil trap in the
circuit. If there is an oil leak, find and repair it, then refill with
refrigerant and oil.
See the Service Guide for the oil removal and refill procedures.
CAUTION: Too much oil in the circuit can cause the unit to
malfunction.
NOTE: Only use oils which have been approved for the
compressors. Never use oils which have been exposed to air.
CAUTION: R-22 oils are absolutely not compatible with R-410A
oils and vice versa.
9.3 - Air coils
The coils on 30RQM/30RQP units are composed of aluminium
fins crimped onto internally grooved copper tubes. Their
construction ensures optimal subcooling in cooling mode.
9.4 - Fans
The fan motors are axial Flying Bird fans equipped with a rotating
shroud and made of composite recyclable material. Each motor
is fixed with transverse supports. The motors are three-phase,
with permanently lubricated bearings and class F insulation.
For detailed information, refer to the table below:
According to the Regulation No. 327/2011 implementing Directive 2009/125/EC with regard to eco-design requirements for fans driven
by motors with an electric input power between 125 W and 500 kW.
Product 30RQM 30RQM 30RQP 30RQP
Option Standard Option 28
(1)
Standard Option 12
Overall efficiency % 39,3 41 41 40,9
Measurement category A A A A
Efficiency category Static Static Static Static
Target efficiency level ERP2015 N(2015) 40 N(2015) 40 N(2015) 40 N(2015) 40
Efficiency level at optimum efficiency point 43.9 45.7 45.7 44.2
Variable speed drive NO YES YES YES
Year of manufacture See label on the unit See label on the unit See label on the unit See label on the unit
Fan manufacturer Simonin Simonin Simonin Simonin
Motor manufacturer Leroy Somer Leroy Somer Leroy Somer Leroy Somer
Fan PN 00PSG000000100A 00PSG000000100A 00PSG000000100A 00PSG000000100A
Motor PN 00PPG000558400A 00PPG000558400A 00PPG000558700A 00PPG000558600A
Nominal power of the motor
(2)
kW 1,85 1,84 1,84 2,97
Flow rate
(2)
m
3
/s 4,28 4,15 4,15 5,31
Pressure at optimum energy efficiency (2) Pa 170 170 170 216
Nominal speed (2) rpm 954 950 950 1127
Specific ratio 1,002 1,002 1,002 1,002
Relevant information to facilitate the disassembly,
recycling or removal of the product at the end of life
See the Maintenance
manual
See the Maintenance
manual
See the Maintenance
manual
See the Maintenance
manual
Relevant information to minimise impact on the
environment
See the Maintenance
manual
See the Maintenance
manual
See the Maintenance
manual
See the Maintenance
manual
(1) Only for the lead fan on each circuit; the other fans are Standard
(2) Aerodynamic tests carried out in a laboratory on the fan motor assembly only, in accordance with regulation No. 327/2011
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