Determination of frequency converter caused problems
You can determine whether problems are caused by the frequency converter by connecting
the fan motor directly to mains power supply. Most commercially available frequency con-
verters have a feature to address these problems.
If the air flow is incorrect, then please contact in doubt the competent TRANE office.
9
Maintenance
TRANE units are built mostly maintenance free and easy to maintain. The maintenance in-
tervals are indicative for normal operating conditions. Widely differing applications may re-
quire different intervals, ask TRANE for details.
Before servicing any electrical parts such as fan motors, damper motors, elec-
tric heater etc. use the emergency-stop control devices, to separate the parts
completely from the power supply. Indications of
have to be observed!
Please understand that we cannot take care of damage caused by improper handling of sol-
vents and cleaning agents, and no liability for mechanical damage. Solvents and cleaning
agents may not contain alcohol for use on coated surfaces.
In order to avoid corrosion in case of components of stainless steel like drain pans or bottom
take care that parts of carbon steel laying around are removed and stainless steel parts are
cleaned from swarf of carbon steel.
For ordering spare parts please contact your TRANE sales partner.
TRANE recommends to perform maintenance and repair work in consideration of the specifi-
cations according to VDI 6022 sheet 1 chapter 5.
9.1 Control cabinet
The following maintenance work is recommended for the control cabinet of AHUs with inte-
grated control:
-
annual change of the filter
-
annually check the function of the fan for the control cabinet ventilation (if present)
-
annually check the function of the heater (installed in roof units)
9.2 Fan / motor group
9.2.1 Fan
-
Check for dirt, debris, damage and corrosion, clean if necessary.
-
Coat surface damage of the housing and impeller with zinc dust paint.
-
Flexible connections are to be checked for damage / visual inspection.
Summary of Contents for CCEB
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