12 Maintenance notes
413
12
SMGB0077 rev.0 - 01/2013
Follow the steps below to wash with clean water:
1 Set the water pump pressure to between 2.5 and 5 kg/cm
2
to protect the îš¿ns.
2 Start the water pump and wash the îš¿ns with clean water.
Work and checks after cleaning
1 Measure the drainage pump insulation using a megohmmeter, check that the insulation is over a 1 MΩ on applying
500 V.
2 Pour water into the drain pan to check that the water ows easily.
3 Remove the vinyl sheets.
4 Fit the fan cover and îš¿t and tighten the cover securing screws.
5 Fit the partition plate and îš¿t and tighten the plate securing screws.
6 Fit the following components:
a. Fan motor.
b. Liquid and gas piping thermistors.
c. Air îš¿lter.
d. Discharge air grille.
e. Side panel.
N O T E
The cleaning product is neutral. However, after it has been used the cleaning water may no longer be neutral.
7 Collect the cleaning water and apply the neutralisation treatment once you have disposed of it.
12.1.3 Cleaning of KPI units
Filter maintenance
Preliminary procedures
Turn off all power supply switches before starting maintenance work.
Wait 5 minutes after stopping the unit before starting the cleaning procedure.
Do not start the system without the air îš¿lter to avoid blockages in the total heat exchanger.
D A N G E R
Wearglovestoavoidinjurieswhenhandlingthelter.
N O T E
• Clean the heat exchanger unit once or more every two years.
• Cleantheairltermorethanonceayear.
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