4
AGL_AC_ST_YRH_EN_Rev01
2.3
Nomenclature
The model designation contains the following technical information about the compressor:
Figure 1: Nomenclature
2.4 BOM variations
The BOM (bill of material) marking at the end of the compressor designation indicates the different
compressor layouts and details. YRH(V)*KTE/KTG compressor models are available in the following
BOM version:
BOM
Suction and discharge
connections
T-Box
Mounting
parts
Features
NBF
Brazing stub tubes
IP56
Without
Single compressor
Table 2: BOM designation
Please refer to the Emerson price list for more details.
2.5 Application range
2.5.1 Qualified refrigerants and oils
IMPORTANT
Always consider the temperature glide of refrigerant blends. Some refrigerant
blends (for example R454C) have a significant temperature glide. This
requires special attention for the design of condenser/evaporators and when
adjusting pressure and superheat controls.
IMPORTANT
R454C is a refrigerant blend with low GWP. It contains HFO, which has a low
chemical stability in the presence of air or humidity. The same levels of
cleanliness, dryness and evacuation in the refrigerant circuit are required as
in HFC & POE applications, including the use of filter dryers.
IMPORTANT
Both PAG polyalkylene glycol and POE polyolester oils are hygroscopic.
Moisture absorption during filling, installation or any other work on the open
refrigerant system should be minimised using appropriate precautions and
working practices.
In comparison with POE, PAG oil is even more hygroscopic. However, in
systems with PAG oil, the same measures to prevent moisture ingress and
removal, eg, minimizing the contact with air, using appropriate vacuuming
methods, using a filter dryer, etc, can be used as in systems with POE oil.
Compressors
YRH(V)*KTE
YRH(V)*KTG
Qualified and approved
refrigerants
R454C
R290
Qualified & approved oils
Emkarate RL 32 3MAF
RLF 68 EP
Servicing oils
Emkarate RL 32 3MAF
RLF 68 EP
Table 3: Qualified refrigerants and oils
