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EN/05.2019 © STULZ GmbH – all rights reserved
CYBERHANDLER 2 INSTALLATION, OPERATION AND MAINTENANCE MANUAL
Measures to take with hot gas pipes if the condenser is positioned higher than the Air
handling unit (for total pipe length up to 45m or total pipe height up to 15m)
• Ascending pipes must have oil traps every 5 m (see drawing).
• Install an oil trap at the end of horizontal gas pipes whenever the following pipe is an ascend-
ing pipe (see drawing)
Fig 6-13: Condenser located higher than the Air handling unit
Once the refrigerant pipes are correctly connected, the circuit tightness must be checked
according to the following procedure, in order to ensure there is no refrigerant leak.
Climatizadores · Condensadores · Aero-refrigeradores · Fan Coils ·Baterias
Air Handlers · Condensers · Dry-Coolers · Air-heaters · Coils
New sketch to insert in the IOM manual (replacing the current sketch, p.25)
:
Inverted Oil Trap
(higher than upper
header of the
Oil Trap
M
ax.
5m
M
ax.
15m
13
For installation with total pipe length greater than 15m or total pipe height greater
than 15m, consult Stulz
Do not subject the compressor to dry air. Otherwise you risk a bearing malfunction!
• Fill the circuit with dry nitrogen until the rated maximum pressure is reached.
• Wait for 10 minutes and check the pressure value.
• If the pressure keeps constant, tightness is OK.
• If the pressure has dropped, the circuit must be checked for a possible leak, using a soapy
solution.
