Maintenance Frequency Checklist - Denco CAIRplus Operation Manual

Commissioning and Maintenance
8.2

Maintenance frequency checklist

Unit part Frequen-
cy
(months)
Monthly
Units
for indoor
Every 3
installation
months
(see page 62)
Units for out-
door installa-
Every 12
tion
months
(weather-
proof units for
roof installa-
tion)
refer to
page 62)
Every 3
Belt-driven
months
fan assembly
(see page 63
et seq.)
Every 3
Direct-driven
months
fan assembly
(See page 67)
58
Observe maintenance frequency specified in the European guidelines and standards
(e.g. VDI 6022).
ELECTRICAL HAZARD AND DANGER OF ROTATING UNIT PARTS WITH
SHARP EDGES!
•
OBSERVE PERSONAL PROTECTION MEASURES
•
Please consider the safety instructions on page 5 and page 55ff when
performing all the described activities!
Action
•
Clean and refill available traps.
•
Check casing for damage and proper fit.
•
Check/replace gaskets of all service openings.
•
Check panels for damage and corrosion, renew corrosion protection and check
proper operation of door stop device (on the pressure side).
•
Hygiene inspection (DencoHappel recommends to carry out maintenance jobs
at intervals specified in VDI 6022!): check built-in parts for dirt and clean, if
necessary; disinfect by wiping; check gaskets and seals for mould and microbial
growth, clean/replace if necessary.
•
Complete the same steps specified for "units for indoor installation".
•
Verify that unit roof is leak-free.
•
Check side panels and cover strips, reseal as necessary.
•
Check base frame and base frame cover panels.
•
Clean external weather grille on the the fresh and exhaust-air sides.
•
Check fans and motors for secure mounting position, debris, damage and
corrosion.
•
Check anti-vibration isolators for proper operation
•
Check belt protection grille for proper operation, clean if necessary.
•
Check impeller for unbalanced condition.
•
Check tension of V-belt and inspect for wear; re-tension or replace as necessary
– for specification see page 64 et seq.
•
Check fan/motor for noise in bearing, replace bearing if necessary.
•
Lubricate non-sealed fan bearing according to the motor manufacturer's
recommendations (refer to Tab. 8-2 on page 66).
•
Check fan motors for debris, damage and corrosion.
•
Check motors for noise in bearing, replace bearing if necessary.
•
Check impeller (especially welded seams) for cracks; replace bearing if
necessary.
PR-2009-0096-GB • Subject to modifications • R8-10/2015
CAIRplus
✓