Table 2 -Technical Data Of The Discharge Line Thermostat; Table 3 - Recommendations For Assembling The Discharge Line Thermostat; Figure 14 - Atex Discharge Line Thermostat And Atex Label - Emerson Scroll ZB*KAU Application Manuallines

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Figure 14 - ATEX discharge line thermostat and
ATEX label
NOTE: Please make sure to select a discharge line
thermostat that complies with the ATEX requirements.
Other discharge thermostat devices might not comply
with the ATEX requirements and could be a potential
ignition source, and therefore they could only be
installed in a non-explosive atmosphere.
NOTE: For correct discharge line thermostat (DLT)
selection, please refer to the Emerson.com/OPI.
To be ATEX compliant, the cable ends of the thermostat
must be connected with suitable cable glands and
electrical enclosure to achieve a minimum protection
degree of IP54 according to UL471 SB5 (IEC60079-15,
clause 6.3).
Operating temperatures
Wire insulation maximum temperature

Table 3 - Recommendations for assembling the discharge line thermostat

Install the discharge line thermostat on the discharge tube 5" (127
mm) from top cap.
Snap the retainer clip over the tube and onto the thermostat. The
thermostat should be placed on the discharge tube so that its body
is in upward position on a horizontal tube installation. Ensure that
the thermostat is not tilted.
The wire must not be in contact with the top cap of the compressor
or the discharge tube. Care should be taken to route wires so that
they do not come into contact with sharp objects.
© 2018 Emerson Climate Technologies, Inc.

Table 2 -Technical data of the discharge line thermostat

Ident number / Part number
Voltage
Maximum amperage
Clips for tube
When connecting the cable ends, a creepage distance
of minimum 0.16 inches (4 mm) and a clearance
distance of 0.1 inches (2.5 mm) between the conductive
parts at different potentials must be maintained.
Maximal Voltage and Amps values for the thermostat
and a protection against electrical shock must be
respected during the installation.
Additionally, the ATEX compliance requires a protection
of the thermostat body against mechanical damage,
according to UL471 SB5 (IEC 60079-0, clause 26.4.2,
table 13). There is no need for an additional housing
around the thermostat body. Protection against
mechanical damage to the thermostat can be achieved
with an overall cover or box placed around the
compressor or refrigerant system.
See Table 2 for Technical data of the discharge line
thermostat.
For
installation,
detailed on Table 3 .
971-0034-00
230V (± 10%)
5A/240V
Open
273°F (± 7°F); 134°C (± 4K)
Close
222°F (±14°F); 106°C (± 8K)
302°F (150°C)
Ø 0.5 inch (12.7 mm)
16
AE4-1431 R1
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