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C6.1.9/0219/E
5
2.6 Application range
2.6.1 Qualified refrigerants and oils
Qualified
refrigerants
R404A, R407A, R407F, R507, R448A, R449A
R134a*, R450A*, R513A* (* = Not for OLTE)
Qualified
servicing oils
Emkarate RL 32 3MAF
Mobil EAL Arctic 22CC
Table 2: Qualified refrigerants and oils
Unit
OMTE-76D-TFD
OMTE-90D-TFD
OMTE-152D-TFD
OLTE-82D-TFD
Compressor
ZBD38KCE-TFD-551 ZBD45KCE-TFD-551 ZB/D76K5E-TFD-567
ZF/D41K5E-TFD-567
Single
compressor
oil charge
3.37
3.37
3.37
3.37
Pre-charge oil
separator
3.8
3.8
Total oil
charge of unit
10.54
10.54
Table 3: Oil charge in litres
WARNING
Use of R450A and R513A refrigerants! Risk of compressor damage!
Migration of R450A or R513A refrigerant into the compressor crankcase could
cause low oil viscosity, which could lead to compressor damage. When using
R450A or R513A it is critical to meet the following requirements:
▪
maintain adequate superheat settings with a minimum superheat of 8-10K;
▪
no liquid refrigerant migration into the compressor at any time, especially
during standstill, during or after defrosting, or after reverse mode;
▪
the use of a crankcase heater is mandatory;
▪
retrofit to R450A and R513A is only allowed for compressors which are
approved for these refrigerants.
Contact your local Application Engineering representative for any further
information.
NOTE: OMTE & OLTE units are equipped with an oil separator. This separator is pre-charged
with 3.8 litres of oil.
2.6.2 Application limits
WARNING
Compressor breakdown! Oil dilution due to low superheat!
Low suction
superheat leads to oil dilution. Always operate the system with adequate
superheat to avoid viscosity decrease of the oil. Additional measures in system
design might help to avoid inacceptable lubrication conditions.
For application envelopes, please refer to the compressor application envelopes which can be found
in Copeland
™ brand products Select software, available at
OMTE & OLTE condensing units can be used at ambient temperatures down to -15°C. The
application envelope of the unit must be respected under all operating conditions. For lower ambient
temperatures please contact your local Application Engineering representative.