fisair DFRA Series, User Manual

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User Manual DFRA Series |
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To operate the PLR, refer to the MMCSA (Operation and Control Manual Series
DFRA) to start the equipment.
4) If it is the first time the equipment has been used:
- Check that the flow control dampers are at least 50% open.
- Check the direction of rotation of the motor fans (blades forwards).
-
If they are rotating in the reverse direction, set switch I2 to position 0, wait
for the equipment to stop, switch off the isolator, disconnect the
equipment supply line and reverse the two supply line phases to change
the fan motor rotation direction.
-
Re-start the equipment.
-
It should be checked that the current absorbed by the motor fans and by
the reactivation battery in the DFRA-E case are in accordance with the
nominal values.
-
Adjust air flow rates, if necessary. The nominal reactivation air flow rate
with the standard heating battery must reach a temperature of
approximately 100°C above its inlet temperature. Thus, the equipment
thermometer reading can be used as a guide to adjust the reactivation
flow rate.
- After the equipment has reached its operating levels (at least 30 minutes),
make the relevant temperature and humidity measurements.
-
It is very important to verify the direction of rotation of the rotor (shown in
figure 1 of section 4). For this purpose, there is a small window located
on the front wall of the basic unit, which allows viewing of the inside of
the equipment.
IMPORTANT: It is possible that the direction of rotation can change with
each ignition if the capacitor is damaged, the electric wiring is defective
or there is an unstable connection of the intermediate wiring. Repair the
defect immediately and do not start the DFRA if the direction of rotation is
incorrect.
5) In manual mode, stop the equipment using the switch I2 locally.
6) In automatic mode, switch off the device via the I2 switch locally or by using the
H1 interlock remotely.
If the equipment has advanced control (with PLR), the reactivation fan and the
rotor motor shutdown will be delayed 5 minutes to dissipate the heat of the
reactivation elements.
If the equipment has basic control (without PLR), the shutdown of the process air
fan, reactivation air fan and the rotor motor is delayed 5 minutes to dissipate the
heat of the elements of reactivation only in equipment with electric heater.