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AGL_Ref_ST_YBK1E_EN_Rev01
2.3
BOM Variation
The BOM (bill of material) number at the end of the compressor designation indicates the different
compressor layouts and details. YB*K1E compressor models are available in the f ollowing BOM
versions:
BOM
Suction and discharge
connections
T-Box
Mounting
parts
Features
GBS
Brazing stub tubes
IP54
Without
Single compressor
GCG
Extra tube for paralleling
Table 3: BOM designation
Please ref er to the Emerson price list for more details.
2.4
Application range
2.4.1 Qualified refrigerants and oils
IMPORTANT
Some ref rigerant 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
Ref rigerant 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 ref rigerant 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
YB12K1E to YB36K1E*
Qualified refrigerants
R454C, R455A, R454A, R1234yf
R404A, R407A, R407F, R448A, R449A,
R407C, R513A, R134a & R450A
Qualified oil (factory
charged)
RL32 3MAF
Servicing oil
RL32 3MAF
* 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
NOTE: For systems using A1 refrigerants (R404A, R407A, R407F, R448A, R449A, R407C,
R513A, R134a or R450A) the flammable refrigerant sticker is not of application and can be
removed from the compressor.
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
conf iguration 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
.
