19 of 114M-AP-001-EN Rev. Q
NOTE
Do not use recycled refrigerant as it may contain oil, which can affect system reliability. The refrigerant should be pure and
stored in virgin containers.
R513A refrigerant is only compatible with EPDM O-rings.
NOTE
To ensure a reliable chiller system, all system components, most notably expansion valves, solenoid valves, and sensors, be
appropriate for application in oil-free systems as determined by the component manufacturer. In addition, all chiller system
components exposed to refrigerant should be approved by their manufacturer for use with that refrigerant.
2.3 Environment
The compressor should not be operated at an altitude higher than 3000m.
The compressor should be stored and operated within the following ambient temperature ranges:
• Storage: -30°C to 70°C (-22°F to 158°F)
• Operation: -1°C to 51°C (30°F to 124°F).
• Mains Power Applied Non Operating Limit: -25°C (-13°F)
• Humidity: 0-95% Non Condensing
If a compressor is stored in an ambient condition where the humidity is at or above 85% for an
extended amount of time, the following precautions must be taken prior to giving the compressor a
demand (Run) command.
• Prior to powering the compressor/chiller, visually inspect the top-side power electronics to
ensure there are no signs of oxidation or any other signs of moisture or condensation.
• Ensure all covers are in place and secured. The Danfoss Turbocor compressors have integrated
seals in each cover which prevent ingress of moisture and contaminants; however, if the covers
are not in place and properly secured, outside air and contaminates can intrude and potentially
affect the electronics.
• Seal any open space around the mains power wire and conduit at the mains input plate of the
compressor to prevent ingress of outside air and contaminants that could come from the mains
power cabinet. Refer to "2.4 Mains Plate Sealing".
2.4 Mains Plate Sealing
• • • WARNING • • •
Power must be applied to all compressors on the chiller for a minimum of 24 hours prior to starting the compressors.
NOTE
• Contact Danfoss Turbocor for lower ambient temperature operations. Refer to “Operating Envelopes,” for details of the operating
conditions. These conditions are in line with the AHRI 540 Standard.
• All compressors/components should be protected from environments that could cause corrosion to exposed metals. For
outdoor installations, a weather-proof enclosure with vents is recommended to house the compressor.
• TTS/TGS/TTH/TGH compressors can operate below -1°C ambient if refrigerant circuit is maintained at a minimum of -1°C Saturated
temperature.
Power Conduit Opening
Seal Around Conduit
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