Rotor Cleaning; Troubleshooting - Trotec TTR 250 HP Mode D'emploi

1 . Gear motor and toothed belt
2 . Fan
3 . Switch room
4 . Regeneration heater
5 . Maintenance openings, sealings
C . Rotor Cleaning
Although it is described below, the washing process
should not be performed during normal maintenance .
We recommend to have this work done by the TRO-
TEC Service, or, at least, to call an TROTEC Service
Centre before washing .
1 . Operate the air dehumidifier without regeneration
for 15 minutes .
2 . Disconnect the power supply (unplug the mains
connector) to prevent the device from being switched
on unintentionally . Injuries which are dangerous to
life may occur otherwise .
3 . Dismount the rotor carefully and make certain that
the surfaces are not damaged in this process .
4 . Place the rotor in a bath for approximately 30 minutes,
adding a weakly acid detergent or toluol .
5 . Flush the rotor using fresh water under low pressure .
6 . Drain the liquid from the rotor and blow the structure
of the rotor free using compressed air under low
pressure .
7 . Mount rotor and toothed belt carefully .
8 . Make certain that all sealings are correctly in place .
9 . Start the dehumidifier without including it in the
process and measure its capacity after approxi-
mately 30 minutes .
Never use strongly alkaline detergents as they may
lead to the complete deterioration of the rotor.
EN
Operating manual – Air Dehumidifiers TTR 250 HP

06. TROUBLESHOOTING

It is easy to check the dehumidifier function by taking
the temperature at the uninsulated air tubes .
Under normal conditions:
- the dry air outlet is warm (25 - 40 °C) and
- the humid air outlet is warm or hot (30 - 50 °C) .
You can proceed as follows if the capacity for dehumi-
dification is not satisfactory:
A. Dry and humid air outlets are warm
A1 . Check entering humidity and compare with data
sheet . The capacity of the device may be too low
to cope with existing conditions .
A2 . Check air flows, filters and reducing damper
adjustment .
A3 . Check rotor sealings .
B. Both air outlets are cold.
B1 . Is the device switched on?
B2 . Has it broken down because of a fault?
B3 . Check the regeneration heater .
B4 . Check the fan .
B5 . Check whether the reducing damper in the rege-
neration channel is not closed .
B6 . Check the air filter .
C. The dry air outlet is cold and the humid air
outlet is very hot
C1 . Check whether the rotor is turning .
C2 . Check whether the reducing damper in the process
channel is not closed .
B - 6