Preventive Maintenance; Preventive Maintenance Of The Water Fi Lter - Carel humiFog Multizone User Manual

Summary table of checks and maintenance:
Pump
Check/Replace
Water fi lters
Oil level
Replace oil
Check/replacement gasket and valves
Attention: after the fi rst 50 h of exercise you need to replace the oil
pump.
Attention: if the "1000h" check does not identify any leaks or
malfunctions, then the possibility to postpone the replacement
shall be assessed. Typically, in optimum operating conditions, this process
is necessary around 3000 h of operation.
Rack/distribution system
visually check
obstructed nozzles
solenoid valves
accessories
drain and water
droplet separator
Installations in AHUs or ducts must also comply with national maintenance
standards (ASHRAE 12-2000, VDI 6022, UNI 8884, VDI 3803, etc.)
Please note that:
•
maintenance personnel must reset the hour counter after having
performed the preventive maintenance operations listed in the
columns "after 50 hours" and "every 1000 hours". If the hour counter
is not reset, the maintenance warnings will no longer be signalled
(to reset the hour counter, see the information under Section 9.8
Maintenance menu/submenu f/screen 02);
•
maintenance personnel are responsible for any malfunctions due to a
lack of preventive maintenance. The controller will display maintenance
warning code "C5" after the fi rst 50 hours and, subsequently, routine
maintenance warning code "CL" every 2000 hours, as a reminder for
the operations listed;
•
failure to change the oil after the fi rst 50 hours of operation may cause
oil leaks and serious damage to the pumps, reducing operating life;
•
maintenance signals do not stop the operation of humiFog.

1. PREVENTIVE MAINTENANCE

monthly every 1000 h
X
X
X
X
Tab. 1.a
every 1000 h
X
X
X
X
X
Tab. 1.b
1.1 Preventive maintenance of the water
fi lter
The fi lters should be checked monthly, while the 9" fi lter (Fig. 1.c) should
only be replaced if the pressure diff erence between the two pressure
gauges in Fig. 1.a is > 0.5 bars.
1.
access the water circuit;
2.
open the external water supply tap;
3. check the pressure drop across the water fi lter.
∆P= PIN - PUSC ≤ 0.5 bar? YES= proceed with the remaining maintenance
operations
NO= replace the cartridges
Procedure:
1. switch off humiFog;
2. shut off the water supply externally;
3.
access the water circuit;
4.
drain the fi lter: open the bottom valve on the fi lter, press the plug at
the top to completely drain the fi lter (Fig. 1.b).
5.
open the fi lter: release the nut using the fi lter tool supplied (Fig. 1.d);
6.
replace the cartridge;
7. close the fi lter (Fig. 1.d);
8. fi ll the fi lter with water:
•
close the bottom valve on the fi lter;
•
open the water supply tap (external);
•
press the black plug on the fi lter to the right until water is released
around the plug (Fig. 1.c);
•
dry the water that leaked out.
9.
close the water circuit section;
10. switch on humiFog;
11.
the cartridges are made from polypropylene: dispose of in accordance
with local standards/laws.
Washable FILTER KIT
3
2
1
60 μm
Fig. 1.b
7 "humiFog multizone - spare parts" +0300068IE - rel. 1.0 - 15.01.2014
ENG
Fig. 1.a
4
3
2
1
5
7
Fig. 1.c
5
6
7