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5.8. START-UP RECOMMENDATIONS
5.8.1. SYSTEM PROTECTION
Units with integrated control board have integrated protection devices against short circuit. WPZ 400-2000 units have controller with F2 protection
fuse of 250mA, 315mA or 350mA value. WPZ 3000-4000 units control board is equipped with additional protection devices:
WPZ
30ED / 39ED
40WD / 54WD
Q2 (F1)
B25
6,3A
Q3 (F2)
B16
1A
Q4 (F3)
B25
6,3A
Q5
B32
-
Q6
C10
-
Q7
C10
-
It is recommended to use protection device on units that are unequipped with internal power supply protection devices.
WPZ
9ED
14WD
15ED
21ED
26WD
30ED
39ED
40WD
54WD
Protection value
20 A
3 A
32 A
40 A
4 A
???
???
6 A
10 A
If additional accessories are used, external protection device value can be different.
To ensure safe maintenance of the unit, it is necessary to turn off main switch and/or external protection device.
5.8.2. PRE-STARTUP RECOMMENDATIONS OF THE UNIT (IN THE PRESENCE OF THE END-USER)
Prior to start-up, the system must be carefully cleaned. Check for the following:
• operation systems and unit elements as well as automation and automation devices were not damaged during installation,
• all electrical devices are connected to power supply and fit for service,
• all necessary automation elements are installed and connected to power supply and terminal blocks,
• cable connection to terminal blocks comply with the existing wiring diagrams,
• all electrical equipment protection components are properly connected (if they are additionally used),
• cables and wires correspond to all applicable safety and functional requirements, diameters, etc.,
• earthling and protection systems are properly installed,
• condition of all seals and sealing surfaces is proper.
6. MAINTENANCE
6.1. SAFETY INSTRUCTION
Unplug the unit from the mains before opening the door (disconnect the power plug from the outlet or in case an automatic circuit
breaker installed, disconnect it as well. Make sure that it cannot be turned on by third parties) and wait until the fans completely
stop (for about 2 min.).
6.2. GENERAL RECOMMENDATIONS FOR VENTILATION SYSTEM MAINTENANCE
In order to ensure proper functioning of the system, maintenance requirements and its periods should be observed. Otherwise, the warranty shall
be void. Some recommendations are provided in the table below, but they are just advisory, as the need for system maintenance depends on the
location of the unit installation, the pollution of atmosphere, population, working hours, etc.
COMPONENT
DURING START-UP
AT LEAST EVERY 6 MONTHS
Filters
Check the cleanliness of the filters
Replace filters every 3 to 4 months or according to the
control device indications.
Fans
Check the connections and the direction of rota-
tion
Check cleanliness. Clean, if necessary
Make sure that the impellers are not unbalanced.
Make sure that the impellers do not cause noise when
rotated by hand.
Make sure that the fastening screws are not loose and
free of mechanical damage.
Check electrical connections and make sure that these
are secured properly and are free of signs of corrosion.
Control panel
Check the connections
Check the connections
