Fläkt Woods
9206 GB 2011.11
2
Specifications are subject to alteration without notice
Maintenance
LQQA Humidifier, for circulated water
Maintenance adjustments (Contd.)
The humidifier function:
– switch on the power supply to the humidifier.
The water tray will start to fill with water.
Check:
– that the pump has started and that it is pumping
water. If there is no water flow, change the direction
of rotation of the pump, see Fig. 5.
– preset the required supply water flow rate according
to Table 1. This is done by setting the adjustment
screw on the flow controller, shown in Fig. 4.
– that water is being discharged from all of the holes
in the spray pipe(s). If any holes are clogged, use a
needle to unclog them. If the spray pipe(s) is/are
extremely clogged, remove the end plugs (17), brush
inside them using a round brush and then flush
them clean.
– that the flow of supply water stops when the water
level in the tray reaches level monitor A.
– that water bleed-off can be done by manually opening
the drain valve approx. half way (45°), see Fig. 3.
The valve can be reclosed by pressing a reset button
on the control unit. When the water level has drop-
ped below the lowest point of sensor B, the drain
valve should open fully. If the water level continues
to drop below the lowest point of sensor C, water
inlet valve should begin to open and after a preset
period (see Table 2, Fig. 6) the drain valve should
start to close. When the water reaches level C, the
pump should soon stop.
(The pump should not run when the water level is
below level C.)
– The preset period on the time relay should be according
to Table 2, 3 and Fig. 6.
Droplet eliminator
The droplet eliminator fills must be correctly fitted for
the direction of air flow, see the arrow on the droplet
eliminator.
EUQA 2;1
Fig. 3
Fig. 4
0
0
2
4
2
4 6
30
20
10
EUQA Pump
Adjusting screw
Reading point
Fig. 5
Table 3. Supply water flow
Size
Supply water flow, l/min
Aluminium
90%
60%
60
30
15
62
40
20
64
50
25
71
40
20
73
50
25
80
40
20
82
50
25
84
60
30
