IV Produkt Envistar Top Series, Operation And Maintenance

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Page 27
Operation and Maintenance Instructions
Envistar Top 04-21
DSET.181201.00.EN
Continuous product development may give rise to specification changes without notice.
6 Maintenance instructions
6.1 Service schedule
The service schedule comprises actions and service intervals for functional sections that can be part
of the air handling unit. The unit consists of one or more of these functional sections. The sections that
pertain to your unit are marked on the list in the table of contents. See page 1.
Make copies of the service schedule for future use before you fill in servicing data for the first time.
For hygiene inspections according to guideline VDI 6022, see separate
Checklist for Operation and Maintenance, Hygiene Inspection at ivprodukt.docfactory.com .
Service year 20
.......
-
.......
for unit no.
............................
Service performed * (date and signature)
Functional section Code
Recommended action
(insp.)
Page
ref.
3000 h /
6 mths
6000 h /
12 mths
9000 h /
18 mths
12,000 h /
24 mths
date date date date
Filter supply air,
extract air
ATEF
Check pressure drop
Change filter if neces-
sary
29
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Rotary heat
exchanger
ATRR
Visual inspection
Check press. balance
Check diff. pressure
Clean if necessary
33
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Counter-flow
exchanger, only
04-12
ATMM
Visual inspection
Clean if necessary
Check function
37
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H O
2
Air heater water ATEV,
ATTV
Visual inspection
Clean if necessary
Check function
39
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Air heater
electric
ATEE,
ATET-EV
Visual inspection
Clean if necessary
Check function
41
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H O
/DX
2
Air cooler water ATET-VK
Visual inspection
Check drainage
Clean if necessary
Check function
42
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Fan unit ELFF
Visual inspection
Clean if necessary
Check the air flow
43
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Damper
ATET-UM,
ETET-UM,
ETET-TR
Visual inspection
Clean if necessary
Check tightness
48
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Sound attenu-
ator
ETET-LD
ATET-LD
Visual inspection
Clean if necessary
49
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*
Every 3,000th hour in operation or every 6th month depending on which occurs first. More frequent servic-
ing may be required in certain environments.