Main Components Of The Unit And Operating Characteristics; Compressors; Lubricant; Air Coils - United Technologies Carrier 30RQM 160 Installation, Operation And Maintenance Instructions

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.
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
Option
Overall efficiency
Measurement category
Efficiency category
Target efficiency level ERP2015
Efficiency level at optimum efficiency point
Variable speed drive
Year of manufacture
Fan manufacturer
Motor manufacturer
Fan PN
Motor PN
Nominal power of the motor
(2)
Flow rate
(2)
Pressure at optimum energy efficiency
Nominal speed (2)
Specific ratio
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
(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
30RQM
Standard
% 39,3
A
Static
N(2015) 40
43.9
NO
See label on the unit
Simonin
Leroy Somer
00PSG000000100A
00PPG000558400A
kW 1,85
m /s 4,28
3
(2) Pa 170
rpm 954
1,002
See the Maintenance
manual
See the Maintenance
manual
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:
30RQM
Option 28
(1)
41
A
Static
N(2015) 40
45.7
YES
See label on the unit See label on the unit
Simonin
Leroy Somer
00PSG000000100A 00PSG000000100A
00PPG000558400A 00PPG000558700A
1,84
4,15
170
950
1,002
See the Maintenance See the Maintenance
manual
See the Maintenance See the Maintenance
manual
30RQP 30RQP
Standard Option 12
41 40,9
A A
Static Static
N(2015) 40 N(2015) 40
45.7 44.2
YES YES
See label on the unit
Simonin Simonin
Leroy Somer Leroy Somer
00PSG000000100A
00PPG000558600A
1,84 2,97
4,15 5,31
170 216
950 1127
1,002 1,002
See the Maintenance
manual manual
See the Maintenance
manual manual
41