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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. YBD*K1E compressor models 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
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.
2.4.3
PED category and maximum allowable pressure PS
The nameplate of the compressor contains information about the maximum allowable pressure PS,
the minimum and maximum allowed temperature TS, the internal free volume and the fluid groups
of the refrigerants qualified for the compressor model range. Values are given for the two existing
pressure ranges on low- and high-pressure sides.
The PED category is assigned according to the Pressure Equipment Directive PED 2014/68/EU.
Requirements apply to the relevant pressure levels in the compressor when the product of "pressure
relative to the environment" by "related internal free volume" (P x V) exceeds given limits. When
4
T-Box
IP54
YBD17K1E to YBD45K1E
R404A, R407A, R407F, R448A, R449A,
R407C, R513A, R134a and R450A
R454C, R455A, R454A and R1234yf
RL32 3MAF
RL32 3MAF
Mounting
Features
parts
Single compressor
Without
Extra tube for paralleling
AGL_Ref_DG_YBDK1E_EN_Rev04
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