Check After Start-Up - CIAT Climaciat Instruction Manual

Positioning of the pressure tappings
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AN: Fresh air. Pressure tapping to be connected to 1 and 3.
AE: Exhaust air. Pressure tapping to be connected to 2 and 4
9.9.2 Rotary heat exchanger system start-up
Warning!
Follow the safety instructions (see § 2 - SAFETY INSTRUCTIONS).
ƒ Wheel pre-start-up check
- Cleanliness is a determining factor in the unit's performance, therefore check the condition of the fins, the fouling level, the
corrosion level and for any damage.
- Check the condition of the gaskets and make sure there are no foreign objects.
- Check that the wheel rotates freely (no friction against the frame)
- Check the condition and tension of the belt. There should be no slippage. Cut the belt to size if necessary (see procedure
§10.8.2 Rotary heat exchangers).
- The drain pan siphon (option) must be activated.
- Check the supply voltage and the wiring of the drive motor.
- Check the motor alignment.
- The rotor bearings are lifetime lubricated and do not require any special lubrication (except for large wheels supplied in
several sections - depends on supplier).
ƒ Commissioning:
- Check the wheel's direction of rotation (if there is a purge sector option). In the event of an error, swap two phases on the
motor.
- Make sure the rotation monitoring device is operating correctly.
- Measure the rotation speed.
- Measure the input current.
- Make sure the pressure and temperature sensors are operating correctly.

9.10 Check after start-up

ƒ Water flow check:
- For each pan connection to the drainage network, make sure the water drains correctly from the pan (no retention) and
that the water in the siphon is still present. In the event of a problem, refer to § 7.1 Siphons.
- If the water does not drain correctly, make sure the unit is horizontal (see Installation section, § 6.3 Assembling the blocks).
- If a steam humidifier is installed, make sure there are no low points on the steam connection tubing.
ƒ Mechanical noise check:
In case of abnormal noise, check that:
- The transport chocks have been removed,
- The impellers are correctly centred on the sections,
- The impellers rotate freely when powered off,
- The impellers are correctly balanced,
- The impellers rotate in the correct direction,
- The belts are correctly tensioned,
- There is no vibration.
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