Maintenance/Service Intervals; Control - Carrier 39CQ Anleitung

6 - MAINTENANCE/SERVICE INTERVALS

Switch off the power supply to the air handling unit before carrying out any work
Maintenance must be performed by qualified personnel
Stop the machine via the human-machine interface then switch off the power supply (fan delay times must be complied with)
It is possible to remove the doors in order to facilitate access to the various components thanks to the detachable hinges.
For all models: open the latches using the wrench provided.
Regular maintenance will keep the unit running at optimum performance levels. The values given in the table below are provided
for guidance only. They do not take into account individual factors that can lengthen or shorten the unit's service life.
Components
Tunnel
Mixing boxes and dampers
Filters
Plate heat exchangers
Hydraulic coils
Electric heaters
Fan motor assemblies
Sound attenuator

7 - CONTROL

Refer to the control manual
Required
Check the cleanliness
Check for corrosion
Check that the servomotors operate correctly
Check the fouling level (visual and pressure drop)
Replace
Remove dust/grease and carry out maintenance on the bypass
damper
Clean and degrease the condensate drain pan using water and
non-abrasive detergents
Check the cleanliness
Check the level of antifreeze
Drain the coil
Check that the droplet eliminator is clean
Visually inspect the heaters and connection cables
Check and retighten the electrical connection
Check the impellers (visually)
Check the various fixings (visually)
Check the various connections
Check the cleanliness and condition (tears)
6 months
6 months
12 months
3 months
Depending on operating conditions. Replace every 2 years, even
for less intensive use
Filter combination: remove the folded F7 or F9 filters firstly then
remove the G4 prefilter
12 months
12 months
6 months
Depending on operating conditions
Depending on operating conditions
12 months
1500 hours
6 months
6 months
6 months
6 months
6 months
EN - 13
Recommendation
EN