8.2. BY-PASS CONNECTION
There can be mounted one of the two types of the following servomotors: Bear in mind the wiring diagram.
L
AC 230V
N
L
AC 230V
N
Attention!! In the equipment with By-Pass the servomotor cable is always in the connection box of the return fan.
9. START UP
Before starting, it is recommendable to carry out the following verifi cations:
- Make sure there are no foreign bodies inside the device and that all components are secured on their positions.
- Ensure manually that the fan does not touch the walls.
- Make sure that the inspection hatch is closed.
ATTENTION:
If the outlets of the fan are not ducted an adequate protection net must be fi tted.
Check the earth connection.
The electrical connection should be made by qualifi ed personnel.
10. INSPECTION, MAINTENANCE AND CLEANING
10.1. FILTERS
The state of the fi lters can be checked by means of special pressure take off points located on both sides of the fi lters, on the lower side of
the unit, in the case of horizontal confi guration, and on one of the sides in the case of vertical confi guration, connecting it to a differential
pressure switch.
The maximum recommended fall in pressure in the standard F7 fi lters is 200 Pa.
- Inspection through the side of the unit:
Using the cutting screwdriver, rotate the catch of the "Filter inspection panel" to the left and remove the panel.
Press the fi lter to the right in the securing clips and remove the fi lter.
- Inspection of the bottom:
Release the closing bolts of the "Filter inspection panel" and remove the panel, grasp the fi lter handle and unlock the clips that secure it
and then pull it downwards.
- Recommended regular maintenance:
It is recommended to installing a pressure switch for detecting the fi lter fouling.
- The fi lters are supplied in a plastic bag to protect them.
Remove the plastic bag before putting into operation the unit.
white / black (3)
3
Servomotor
brown (2)
Type 1
2
blue (1)
1
white (Y2)
7
Servomotor
black (Y1)
Type 2
6
blue (N)
4
English
white
black
brown
blue
33
Español
Francés
blanco
blanc
negro
noir
marrón
brun
azul
bleu