Technical Maintenance - Vents PA W Series User's Operation Manual

If the unit is equipped with a full set of automatic control system, for the internal
wireworks and internal connection to the user's manual of the automatic control system
for air handling unit with water heater. The manual is included into the delivery set.
Maintenance operations of the unit are required 3-4 times per year.
Maintenance includes regular cleaning and the following operations:
1. Filter maintenance (3-4 times per year).
Dirty filter increases air resistance in the system and reduces supply air volume. The filter requires
cleaning once in 3-4 months. Clean the filter with a vacuum cleaner or replace it. For new filters, contact
your seller.
To replace the filter:
1. remove the cover;
2. replace the filter;
3. re-install the cover;
2. Fan inspection (once per year).
Even in case of regular maintenance of the filters, some dust and grease can get accumulated inside
the fans and reduce the fan performance and supply air flow. Clean the fans with a soft brush or cloth.
Do not use water and abrasive detergent, sharp objects or solvents for cleaning to prevent the
impeller damage.
3. Ductwork system inspection (once in 5 years).
Even if you follow all the listed maintenance guidelines, some dust can get accumulated inside the
air ducts and reduce the unit performance.
Duct maintenance means their regular cleaning or replacements.
V43EN-03.indd 17
L1
L2
~400 V
50 Hz
L3
PE
QF
L1
L2
L3
QF - automatic circuit breaker (not included into the delivery set);
X1 - terminal block;
TB1, TB2 - motor overheating protection contact.
X1
1 W2
V2
2
3 U2
U1
L1 4
L2
5
V1
6
W1
L3
7
8 PE
TB1
9 TB1
TB1
TB2
TB2
10
TB2
Fig. 13. Unit wiring diagram
17
MAINTENANCE
11.09.2015 8:34:21