Figure 117: Repair switch
CCEB-AHU with TRANE-control
- Control box is equipped with repair switch in execution RED-YELLOW as specified above
- On responsibility of the client must be ensured that of the above specified Requirements ac-
cording to DIN VDE 0660 and IEC 947-3 on a repair switch in RED-YELLOW execution
are fulfilled
a) items 7 to 9
b) item 10, implementation of emergency stop function in control system
CCEB-AHU without TRANE-control
- Specified repair switch must be provided on responsibility of the client
- Is to carry out independent from TRANE supply of repair switch for fan motor. Fan motor repair
switch cuts just the motor off.
- Furthermore on responsibility of the client must be ensured that all items 1 to 10 of the above
specified Requirements according to DIN VDE 0660 and IEC 947-3 on a repair switch in
RED-YELLOW execution are fulfilled
7.4 Variable, frequency-controlled drives (VFD, frequency converters)
If the frequency converter is supplied from someone else then TRANE, please note the following
points to ensure proper operation:
- Suitability for fans with variable torque.
- The frequency converters supplied by TRANE are usually equipped with interference filters.
The interference filter must be compatible with the on-site power supply system.
- The current output of the frequency converter must be compatible with the nominal motor ca-
pacity.
- The frequency converter must be adapt for the installation type (IP rating, type of ventilation,
temperature, electromagnetic environment ...)
- If the frequency converter will be mounted in the fan section, the frequency converter must be
equipped with a separate display unit.
In this case, the display is to be kept on the outside of the unit - operating in the
fan section is not permitted for safety reasons!
When using residual current devices (RCD), the supply cable has to be equipped with a RCD,
which is approved for frequency converter (Type B or U, 300 mA).
Plug fans
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