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2.3
BOM variations
The BOM (bill of material) marking at the end of the compressor designation indicates the different
compressor layouts and details. YB*K1E compressors are available in the following BOM versions:
Suction and discharge
BOM
connections
GBS
Brazing stub tubes
GCG
Table 3: BOM designation
Please refer to the Emerson price list for more details.
2.4
Application range
2.4.1 Qualified refrigerants and oils
IMPORTANT
Some refrigerant blends have a significant temperature glide. It is essential
that the glide of the refrigerant blends be carefully considered when adjusting
pressure and superheat controls.
IMPORTANT
Refrigerant blends with low GWP containing HFO's have a low chemical
stability in presence of air or humidity. The same levels of cleanliness, dryness
and evacuation of the refrigerant circuit are required as in HFC & POE
applications, including the use of filter-dryers.
NOTE: R454C, R455A, R454A and R1234yf are classified as A2L (mildly flammable)
refrigerants.
Compressors
Qualified refrigerants
Qualified oil (factory
charged)
Servicing oil
* Single-phase models are released for use with R454C, R407C and R134a refrigerants only.
Table 4: Qualified refrigerants and oil
Oil recharge values can be taken from the compressor nameplate or from Copeland Select software
available at www.climate.emerson.com/en-gb.
2.4.2 Application limits
CAUTION
Inadequate lubrication! Compressor breakdown! The superheat at the
compressor suction inlet must always be sufficient to ensure that no refrigerant
droplets enter the compressor. For a typical evaporator-expansion valve
configuration a minimum stable superheat of at least 5 K is required.
For application envelopes and technical data, please refer to Copeland Select software available at
www.climate.emerson.com/en-gb.
4
T-Box
IP54
YB12K1E to YB45K1E*
R454C, R455A, R454A, R1234yf
R404A, R407A, R407F, R448A, R449A,
R407C, R513A, R134a & R450A
RL32 3MAF
RL32 3MAF
Mounting
parts
Single compressor
Without
Extra tube for paralleling
AGL_Ref_ST_YBK1E_EN_Rev03
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