AL-KO AT4F Series, Руководство по эксплуатации и сборке

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Servicing and maintenance
As the result of the hygiene inspection, documentation of the hygiene status of the inspected AC installation and written
notification of the inspection result to the owner, including a list of necessary measures, must be drawn up. The date of
any necessary follow-up inspection must be defined depending on the urgency of the measures to be performed.
Critical findings exist in the following cases:
„
On occurrence of higher microbial counts downline of air conditioning installations than upline
„
On visible mould infestation or other microbial coatings
In the event of a critical finding, a hygienist or further qualified staff must be consulted, and the company physician must
be involved.
7.2.2 Performing of hygiene checks during maintenance by Category B trained maintenance personnel in
accordance with VDI 6022 Sheet 1
The aim of the hygiene checks to be performed regularly by the maintenance personnel is to determine and eliminate
hygiene deficiencies on the air conditioning installations at an early stage through frequent visual inspections or random
microbiological self-checks.
The regular hygiene checks include the following measures:
„
Visual inspection of the relevant AC area for hygiene deficiencies such as e.g. microbial growth or soiling, rust for -
mation, calcium deposits and damage.
„
Check of the total colony count in the circulated water of air humidifiers.
Table 6 in Section 5.5 of VDI 6022 Sheet 1 specifies the type and scope of the checks to be performed, any measures
required to eliminate ascertained hygiene deficiencies and the time intervals within which the respective hygiene checks
are to be performed.
7.2.3 Maintenance schedule
Hygiene requirements and maintenance, servicing of air handling units in accordance with VDI 6022 and VDMA 24186
Activity/unit components Measure / remark
Inspections to be performed at
monthly intervals
1 3 6 12 24
1 Hygiene inspection 1 3 6 12 24
To be performed by trained qualified
staff in accordance with VDI 6022
Sheet 4
AC installations: every 3 years
2 Outdoor air intakes and exhaust air
outlets
1 3 6 12 24
2.1 Check for soiling, damage and corrosion Clean completely and repair X
3 Unit housing 1 3 6 12 24
3.1 Inspect for soiling, damage and corro-
sion on the air side
Clean and repair X
3.2 Check for water formation (condensate,
leaks)
Clean and identify the cause X
3.3 Check function of drains Clean, if necessary X
3.4 Check flexible connections for leaks X
3.5 Check doors and closures for ease of
movement and leak-tightness
Repair X
3.6 Check the integration of the housing
parts into the unit potential
Repair
3.7 Check the condition of the type plates for
legibility.
If necessary, replace it X