Pressure Testing At Suction Side; Electrical Connection; Figure 44: Brazing - Sectional View - Emerson Copeland OME-16T Application Manuallines

Recommended brazing materials are listed in Table 17 below.
DIN EN
Brazing alloy
ISO 17672
BrazeTec
Ag145
4576
BrazeTec
Ag134
3476
BrazeTec
Ag244
4404
BrazeTec S 15 CuP284
BrazeTec S 5 CuP281
BrazeTec S 2 CuP279
DIN
Flux
EN 1045
BrazeTec h FH10
* DVGW = German Technical and Scientific Association for Gas and Water
Table 17: Extract of the recommendations for acceptable brazing alloys and flux
Figure 44: Brazing – Sectional view
3.2.4

Pressure testing at suction side

A pressure test on the suction side must be conducted with 1.1 x PS. The minimum required PS on
the suction side is 80 bar. The PRVs on the liquid receiver must be considered accordingly. The
tightness of the valves between suction line and liquid receiver cannot be ensured. Theref ore, one
PRV on the liquid receiver must be closed by the changeover valve. The second PRV must be
removed during the pressure test and the connection closed with a plug. After the pressure test, the
PRV must be reassembled.
3.3

Electrical connection

WARNING
Earth leakage current! Electrical shock hazard! This product includes a
three-phase f requency drive. Additional protection devices could be necessary.
This must be decided by the electricity network supplier or by the electrician
company which provides the electrical connection.
Copeland CO scroll ref rigeration units can cause earth leakage currents, b oth AC and DC, due to
2
the presence of an inverter and an EMC f ilter in the system. An AC/DC-sensitive Residual Current
Device (RCD) should be used on the power supply side. The RCD can be type B or B+.
A delay of at least 50 ms should be incorporated to prevent spurious trips. The leakage current is
likely to exceed the trip level if not all the phases are energized simultaneously.
The unit complies with IEC 61000-3-12 in case that the short-circuit power Ssc is greater than or
equal to 5.37 MW at the interf ace between the user´s power supply and the public network. The
AGL_Unit_OMTE_CO _EN_Rev01
2
Working
DVGW* number temperature
(°C)
DV-0150CM0043 670
DV-0150CM0045 710
DV-0150CM0044 730
- 700
- 710
DV-0105CL0475 740
Active
DVGW* number temperature
(°C)
DV-0101AU2227 550-970
Composition (% by weight)
Ag Cu Zn
45 27 25.5
34 36 27.5
44 30 26
15 80 -
5 89 -
2 91.7 -
Comments
Flux residues are corrosive and must be
removed
Sn P
2.5 -
2.5 -
- -
- 5
- 6
- 6.3
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