flakt woods LQQA, Maintenance Manual

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Fläkt Woods 9206 GB 2011.11 3
Specifications are subject to alteration without notice
Maintenance
LQQA Humidifier, for circulated water
Time relay TR1 has been preset for
normal operation. If the time requi-
red for emptying has to be increased
due to humidification over a long
period, this can be done as follows:
1. Select Function 12
2. Select the Range
3. Select Time
– If Range has red digits, Time
shows tenths of Range
– If Range has black digits, Time
shows thirtieths of Range
.
Example: Size 64, Δx>8 gram.
Set a time of 240 sec.
– Select a Range of 300 sec.
(black digits)
– Select a Time of 24
(black digits)
Table 2. Presetting the time relay Table 3. Presetting time relay TR1
Size
Time required for emptying
Normal operation preset
value
High humidification over a
long period
Δx >8 gram Δx >5 gram
90% 60% 90% 60%
60
62
64 30
60
60 0
0
30
30
90
240
0
0
120
71
73 60
90 30
60 180
240 90
120
80
82
84 90
90
120
60
60
60 180
240
300 120
120
120
Range
Time
ETR4–69–A
Function
1s
1.5 .5
12
M
A1~+ 15 B1
A2~- 18 16
Rel Power
TR1
Fig. 6
Seconds
0 Range
1 s Time
0
10 10 s 10 red
20 30 s 20 black
30 30 s 30 black
40 100 s 4 red
50 100 s 5 red
60 100 s 6 red
70 100 s 7 red
80 100 s 8 red
90 100 s 9 red
100 100 s 10 red
120 300 s 12 black
180 300 s 18 black
240 300 s 24 black
300 300 s 30 black
Q1
K1
R1
NR3 NR2 NR1
TR1
Components inside the control box
Fig. 7