FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
LQQA HUMIDIFIER,
FOR CIRCULATED WATER
INSTALLATION AND MAINTENANCE INSTRUCTIONS
CONNECTION TO THE WATER SYSTEM
The water supply is controlled by a built-in solenoid valve. Connect the
supply pipe to the inlet branch. Fit a shut-off valve, Item 2, in the water
supply pipe.
Table 1. Connection sizes
To avoid clogging, fit a water filter, Item 3 (with a max. mesh of 500 µm)
between the shut-off valve and the humidifier.
Connect the drain pipe, Item 5, to the humidifier drain connection. The
drain should be fitted with a cleanable water trap, Item 4, and should run,
without reduction in diameter, to a floor gulley. On size 60-84 units, two
water traps coupled in parallel should be used.
The shut-off valve, water trap and water filter are not included in the
delivery.
CONNECTION TO THE ELECTRICAL SYSTEM
(To be carried out by an authorized electrician)
When making the connections on site, run the power supply cable to the
control box across an external high voltage switch and through the cable
gland fitted in the casing. The control box is protected by an internal 2A
fuse. The pump(s) supplied is/are always wired for 3 x 400 V. The pump
motors have degree of protection S 33 (IP 44) and class B insulation.
Table 2.
1. Control box, external
2. Shut-off valve (not included)
3. Water filter, with a max mesh of
500 µm (not included)
4. LQAZ-08 Water trap (accessory)
5. Drain pipe
6. Humidifier fill
7. Droplet eliminator
8. Spray pipes
9. Pump
10. Flow controller
11. Valve with motor actuator
12. Overflow hose
13. Level sensor
14. Solenoid valve
15. Flushing hose
16. End plug
17. Spacer plate
Fig. 1
17
3
2
4
16
15
14
1
9
7
8
10
11 12
13
5
6
Size 60–84
Connection number/Diameter
Size Supply connection/ (male threads) Drain connection
60-84 No. 20, R 3/4” 2 drains 32 dia.
LQQA Size Humidification
rate
Number of pumps
Output:
0,12 kW
Output:
0,18 kW
Voltage:
3 x 230 /400 V
Current:
0,71/0,41 A
Voltage:
3 x 230 /400 V
Current:
0,86/0,50 A
60 60%-90% - 1
62, 71, 80 60% 1 -
62, 71, 80 90% - 1
64, 73 60%-90% 2 -
82, 84 60% 2 -
82, 84 90% - 2
2
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
EUQA 2;1
ITEMS TO CHECK WHEN MAKING ADJUSTMENTS
The water:
Determine the proportion of calcium, bicarbonate and pH-value of the
water. This information can be obtained from a water analysis or from
the local waterworks. Plot the values obtained in Chart 1 on page 4 to
determine in which zone the water can be classified. If the water is of
zone 4 type, it should be softened.
The humidifier function:
- Switch on the external switch. The water tray starts to fill with water, if
the TF1 input is closed.
Now check:
- that the pump has started and that it is pumping water, (the RH1 input
should be closed).
If there is no water flow, change the direction of rotation of the pump.
See Fig. 3
- preset the required supply water flow rate according to Table 3. This is
done by setting the adjustment screw on the flow controller, Fig. 4.
- that water is being discharged from all 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 (Item 16, Fig.
1), 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 A.
- that the water bleed-off rate is correct. Press and hold down
the –button on RC1 to force the drain valve to open. See Fig. 2!
When the water level has dropped below Level B, the valve will open
completely and ”Emptying” will appear on the display screen. When
the level drops below Level C the water inlet valve should open and
after a preset period the drain valve should start to close.
If the water level continues to drop below level C, the water inlet valve
should open and after a preset period the drain valve should to close.
When the water level reaches Level C, the pump should briefly stop;
then continue operating.
DROPLET ELIMINATOR
Mount the droplet eliminator in the correct direction of airflow. See the
arrow on the droplet eliminator.
00
2
4
246
30
20
10
EUQA Pump
Fig. 3
Adjustment screw
Reading point
Fig. 5 Level sensor
Fig. 4
Fig. 2
Table 3. Supply water flow
Size
Supply water flow, l/min
Aluminium
90% 60%
60
62
64
30
40
50
15
20
25
71
73
40
50
20
25
80
82
84
40
50
60
20
25
30
T1
Q1
K1
Q2
K2
RC1
OK
ESC
F1
11-15
1-9
PE N
T1, Transformator 230VAC/24VDC
RC1, Reglercentral (PLC)
K1-K2, Kontaktor
Q1-Q2, ÷verlastskydd
F1, S‰kring 2A
(55) (08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
YYYY/MM/DD
08
: 55
2006 / 03 / 07
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
Bild 7. Inst‰llning av klockan.
INAKTIVITET
INACTIVITY
INAKTIVITÄT
T> 240 min
(55)(08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
Closed
Open
ESC
+
–
OK
3
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
Table 4. Presetting the dilution period
WATER BLEED-OFF
The water consumption consists of useful evaporation of water and a
necessary water bleed-off flow. This bleed-
off flow is necessary to reduce the concentration of salts in the
circulating water. If the concentration of salts is too high, salts may be
deposited on the humidifier fills, which will have a detrimental effect on
the performance and useful life of the humidifier.
Chart 1 can be used to determine the appropriate bleed-off flow, by
determining zone for the current water quality. Then set the appropriate
zone in the display and read the correct bleed-off flow.
In order to ensure a good water quality in the water tray, it is advisable to
empty and flush the tray clean once a day (factory-preset to occur from
12.00 to 12.15 hours).
If high demands are made on hygiene or if the humidification rate is to be
high on the long term, Δx > 8 gram per kg air (90% humidifier) or. Δx > 5
gram (60% humidifier), we recommend planning an extra daily drainage
and flushing clean. If required, the dilution period can be lengthened. See
Table 4. The value (T) is set on the display.
Size
Time for dilution, seconds
Normal operation
Pre-set value
High humidification
over a long period
b = 1
90%
b = 2
60%
Δx >8 gram
90%
Δx >5 gram
60%
60
62
64
30
60
90
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
4
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
10 10 000
6000
2000
4000
1000
600
400
200
100
60
40
20
10
6
4
2
1
567898,5 9,5
42620 40 60 100 1000 10 000
BEFEUCHTER (Diagram)
pH value Max. pH aluminium
Precipitation zone
Transition zone
Safe zone
Calcium Ca2+ mg/l
CHART 1
Bicarbonate HCO3
– mg/l
TO DETERMINE THE WATER QUALITY ZONE
The following information is needed to determine the water quality zone:
• pH-value
• Bicarbonate concentration (HCO3 ), mg/l
• Calcium concentration (Ca2+), mg/l
Information on the water can be obtained from the local waterworks or by
water analysis.
EXAMPLE
Data from the local waterworks:
pH = 7,6
Bicarbonate 70 mg/l
Calcium 30 mg/l
Chart 1 the water is in zone 1 (The safe zone)
Zone 1 is the safe zone, in which the water is soft or demineralised.
Zone 2 is the lower part of the transition zone, in which the water is
normally of normal drinking water quality.
Zone 3 is the upper part of the transition zone, in which the water is
relatively hard.
Zone 4 is the precipitation zone, in which the water is very hard.
The water must be partially demineralised so that the result will be a
water quality that corresponds to zone 2-3.
However, the water must not be demineralised to the point that water of
zone 1 quality is obtained.
Besides the risk of lime precipitation, the concentration of chloride (C1)
and copper (Cu) must be considered. The concentration in fresh water
must not exceed 50 mg/l for chloride and 0.02 mg/l for copper.
5
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
TO SHUT DOWN THE HUMIDIFIER
A. Isolate the power supply
B. Stop the fans, if they are operating.
CLEANING OR REPLACEMENT OF THE HUMIDIFIER
FILLS AND DROPLET ELIMINATORS
A. Shut down the humidifier.
B. Open the inspection door.
C. Withdraw the spacer plate as shown in Fig. 6.
D. Withdraw the droplet eliminators and humidifier fills straight out of
the humidifier. See Fig. 6.
Important!
The inner humidifier fills can be reached if you carefully step on the
edge of the water tray. Avoid walking on the bottom of the water tray,
guide rails or electric cables.
E. The fills are relatively fragile and therefore should be treated with
great care. Clean by spraying with a jet of clean water, possibly
containing the ULCZ-01 cleaning agent. When replacing the
humidifier fills, see the appropriate instructions supplied with the
new fills.
F. Refit the components in the reverse order.
G. Check the position of the spacer plate and close the door.
TO CLEAN THE WATER TRAY
A. Shut down the humidifier.
B. Withdraw the humidifier fills and the droplet eliminators.
C. Open the drain valve manually to drain the water tray.
Important!
Do not walk on the bottom of the water tray, guide rails or electric
cables.
D. The water tray is now exposed and can easily be cleaned with the
flushing hose supplied.
E. Refit the components in the reverse order.
F. Check the position of the spacer plate and close the door.
Fig. 6
INTERRUPTED OPERATION
The control unit of the humidifier switches over to the emptying mode as
soon as the fan is shut down.
Drain and clean the water tray whenever the system is shut down for an
extended period, such as during the annual holiday and long weekends.
If the humidifier is to be out of service for some time, the humidifier fills
should be removed from the humidifier, cleaned and stored in a place
where they will not sustain damage.
SERVICE INTERVALS
Component Service work Interval,
months
Casing (water
tray, ends, top,
guide rails)
Drain the water tray. Clean the interior
by flushing, wiping or brushing, if
necessary.
3
Humidifier fills
Droplet eliminator
Clean by flushing with water, possibly
with ULCZ-01 cleaning agent, agent,
particularly if the humidification
performance has deteriorated.
3
Water filter
Clean or replace the filter cartridge,
if necessary. (The mesh must not
exceed 500 µm.)
3
Level sensor Check the water sensor and adjust
as necessary. 3
Water flow Clean the spray pipes as necessary. 3
Water trap Clean and refill. 6
Water quality See ”Measures when making
adjustments”. 12
6
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
The arrow right key is used for navigating between
the 7 images on the screen showing running
information and other settings. See below.
If the arrow left key is held depressed, this will force
the drain valve to open.
(For performance testing)
All the arrow keys are used for moving the flashing
cursor between the various fields on the screen.
The plus and minus keys are used for:
- increasing and decreasing a flashing value
- selecting between On and Off.
The ESC key is used for :
- advancing one step upward in the menu tree
- removing a flashing cursor
- resetting alarms/alarm outputs
The OK key is used for:
- confirming a selection
INFORMATION IMAGES
1. In-operation information in Swedish.
2. In-operation information in English.
3. In-operation information in German.
4. For setting the water quality zone and time delay T for the dilution of
fresh water.
5. For setting the cleaning period for cleaning the humidifier fills and
water tray. (1-2 x 15 min. / day)
6. For reading the factory preset values for each water level A, B1, B2, B3
and C, and the sensor’s scaling factor F and pump function CP.
7. For setting the time.
IMAGE 1. IN-OPERATION INFORMATION IN SWEDISH
Line 1 shows: NOT RUNNING, RUNNING, HUMIDIFYING
Line 2 shows: DRAINING, DILUTION, FILLING, CLEANING
Line 3 shows: ALARM CP1-Q1, ALARM CP2-Q2, ALARM SENSOR,
ALARM LEVEL,
Line 4 shows: WATER 45 mm
IMAGE 2. IN-OPERATION INFORMATION IN ENGLISH
IMAGE 3. IN-OPERATION INFORMATION IN GERMAN
CONTROL EQUIPMENT
The control box is located on the exterior of the functional section.
The components inside the humidifier, such as the ultrasound sensor,
solenoid valve, actuator and circulation pumps
1-2 are wired to the junction box.
ULTRASOUND SENSOR
The ultrasound sensor has a 0-10V analogue output which enables water
level readings in the display with an accuracy of a few millimetres.
MONITOR AND KEYPADS
THE MONITOR
The monitor screen displays 4 lines with 12 characters on each line.
THE KEYPADS
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
ESC
+
–
OK
- - RN - - -
FI LLI NG UP
ALARM CP1
WA TER 45mm
UN
FI LLI NG
I NG
UP
ALARM CP1
WA TER 45mm
- Q 1
- - RN - - -
FI LLI NG UP
ALARM CP1
WA TER 45mm
UN
FI LLI NG
I NG
UP
ALARM CP1
WA TER 45mm
- Q 1
BETRI EB- AN
NACHFÜLLUNG
ALARM CP1
WA SSER 45mm
- Q 1
ESC
+
–
OK
7
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
IMAGE 4. TO SELECT THE WATER QUALITY ZONE AND TIME DELAY.
Do the following to change zone.
Press the arrow down key so that number 2 flashes. Press the + or - key
to change to the zone required: 1, 2 or 3. Then press OK.
If a value lower than 1 is selected, zone 1 will still apply.
If a value higher than 3 is selected, zone 3 will still apply.
Press OK to return to Image 5.
Example: To set the stop time, 18:45 Off.
Press the arrow down key 4 times so that the 00:00 field flashes. Press
OK.
A stop time program will now be shown.
Press the arrow down key 2 times to the last line and there it reads 00:00
OFF.
The first field is flashing. Enter 18 (h).
Select the next field. Enter 45 (min).
Select the next field. Enter the OFF function
The last line now reads: 18:45 OFF.
Press OK to return to Image 5.
Do the following to change the time delay.
Press the arrow down key 2 times to make the value flash. Press the + or
- key to change to the value required. Then press OK.
The humidifier should be drained and flushed for 15 min 1-2 times/day.
The period: 12:00 -12:15 has been preset (can of course be altered, if
needed).
A second cleaning period is available. On delivery, it is preset to 00:00 -
00:00.
If desired, you can set it to 18:30 -18:45; just remember to set the start
time as ON and the stop time as OFF on the monitor screen.
Use the arrow keys to advance to the next flashing field and change the
appropriate value by pressing the + or - key.
Example: To set the start time, 18:30 On.
Press the arrow down key 3 times so that the 00:00- field flashes.
Press OK.
Now a time program for the start time will be shown
Press the arrow down key 2 times to the last line and 00:00 OFF appears
there.
The first field is flashing. Enter 18 (h).
Select next field. Enter 30 (min).
Select next field. Enter the ON function.
The last line now reads: 18:30 ON.
IMAGE 5. TO SET THE CLEANING PERIOD
15mi n CL EAN.
REI NI GUNG
12: 00- 12: 15
18: 30- 18: 45
ZON/ ZONE : 2
( 1- 3 )
VERZÖGERUNG
DELAY T= 20
15mi n CL EAN.
REI NI GUNG
12: 00- 12: 15
00: 00- 00: 00
Caution!
The period selected must always be a 15 minute
period.
Caution!
Do not change lines 1-3.
Caution!
Do not change lines 1-3.
8
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
S=120 B3= 53
A= 73 B2= 33
C= 20 B1= 28
F=540 CP= 2
T1
Q1
K1
Q2
K2
RC1
OK
ESC
F1
11-15
1-9
PE N
T1, Transformator 230VAC/24VDC
RC1, Reglercentral (PLC)
K1-K2, Kontaktor
Q1-Q2, ÷verlastskydd
F1, S‰kring 2A
(55) (08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
YYYY/MM/DD
08
: 55
2006 / 03 / 07
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
Bild 7. Inst‰llning av klockan.
INAKTIVITET
INACTIVITY
INAKTIVITÄT
T> 240 min
(55)(08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
T1
Q1
K1
Q2
K2
RC1
OK
ESC
F1
11-15
1-9
PE N
T1, Transformator 230VAC/24VDC
RC1, Reglercentral (PLC)
K1-K2, Kontaktor
Q1-Q2, ÷verlastskydd
F1, S‰kring 2A
(55) (08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
YYYY/MM/DD
08
: 55
2006 / 03 / 07
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
Bild 7. Inst‰llning av klockan.
INAKTIVITET
INACTIVITY
INAKTIVITÄT
T> 240 min
(55)(08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
IMAGE 6. PRESET LEVELS AND PARAMETERS
(CAN BE ALTERED AFTER ENTERING A PASSWORD)
IMAGE 7. TO SET THE CLOCK
The clock must always be set if the unit has been without current for
approx. 100h.
Summer/winter time changeover occurs automatically according to LQ
Standard.
Do the following to alter the time.
Press the arrow down key so that the clock time flashes.
Press OK.
The Date and Time Image now appears on the screen. Only the time
needs to be set.
Use the arrow keys to move the flashing field and change each value with
the + and - keys.
When you’ve set the time, press the OK key to return to Image 7.
S = Height of the ultrasound sensor above the bottom of the water
tray.
A = Max. water level when filling.
C = Min. water level. (Pump stopped).
F = Adjustment/scaling of the sensor’s output signal.
B3 = Level for zone 3
B2 = Level for zone 2
B 1 = Level for zone 1
CP = 1-4: How the pump(s) should operation when the inputs for
hygrostats RH1 and RH2 respectively are closed.
1 pump, 1 step
CP = 1, RH1 starts CP1, RH2 is disconnected.
Alarm from CP2 is interlocked.
2 pumps in parallel
CP = 2, RH1 starts both CP1 and CP2, (factory setting) Can also be
used if only CP1 exists.
2 pumps in sequence
CP = 3, RH1 starts CP1, RH2 starts both CP1 and CP2.
2 pumps, binary mode
CP = 4, RH1 starts CP1, RH2 starts CP2, RH1+RH2 starts both CP1 and
CP2.
Caution!
The pumps will be interlocked if the water
level is low, if the unit is idle and if an alarm is
initiated from the relevant overload protection.
9
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
T1
Q1
K1
Q2
K2
RC1
OK
ESC
F1
11-15
1-9
PE N
T1, Transformator 230VAC/24VDC
RC1, Reglercentral (PLC)
K1-K2, Kontaktor
Q1-Q2, ÷verlastskydd
F1, S‰kring 2A
(55) (08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
YYYY/MM/DD
08
: 55
2006 / 03 / 07
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TID
ZEIT
TIME
08:55
Bild 7. Inst‰llning av klockan.
INAKTIVITET
INACTIVITY
INAKTIVITÄT
T> 240 min
(55)(08)
YYYY/MM/DD
08
: 55
2006 / 03 / 07
Ex.
OK
ClockSet
OK
TID
ZEIT
TIME
08:55
TO ZERO CALIBRATE THE ULTRASOUND SENSOR
The sensor has been zero calibrated for an empty water tray in the
FläktGroup workshop. If the need for a zero calibration should arise in
the future, the lock nuts of the sensor can be used for adjusting its height
position. The sensor should first warm up prior to calibrating, i.e. operate
for at least 15 minutes after switching on the power. During the warm-up
time, the display may show a water level that is a few millimetres in error.
ALARMS
There is a potential-free group alarm output in the junction box.
The alarms that appear on the monitor screen are as follows:
ALARM LEVEL
The water level continues to rise above the max. level ”A”. This is probably
due to the solenoid valve MV1 not shutting. An alarm is initiated after 5
min.
The water level has not reached max. level ”A” while filling. This is
probably due to the following: the solenoid valve MV1 does not open, the
water tap is shut off, or the drain valve SV1 does not close. An alarm is
initiated after 30 min.
The sensor detects unreasonable values, outside its detection range, is
not properly directed towards the surface of the water or has stopped
operating. This is also shown on the LEDs of the sensor: both shine red.
An alarm is initiated after 5 min.
ALARM CP1-Q1 OR CP2-Q2
Has been initiated because the overload protection for circulation pump
CP1 or CP2 has tripped.
ALARM RESET
Press the ESC keypad to reset the alarm.
F1, Fuse 2A
T1, 230VAC/24DVDC Transformer
RC1, Controller (PLC)
K1-K2, Contactor
Q1-Q2, Overload protection
Fig. 7 Components inside of the control box
10
Installation and maintenance instructions
FläktGroup DC_9205GB 20180329_R0 Specifications are subject to alteration without notice
WIRING DIAGRAM
+
LNPE
-
SV 1
3
+A
-
0-10V
B
Alarm
12
TF 1
643
Q 2
Q 1
78
RH 1
RH 2
MV 1
4
CP 2
CP 1
56
L1
L2
L3
N
PE
K1 K2
Q1 Q2
T1
TERMINAL
SV 1 L1
2
4
6
13
14
12
1
3
11
7
8
RC1
A2
A1
95 96
CP1 CP2
246
513
Brown
Blue
Shielded
White
Level sensor
PE
PEPE
M
3-phase 3-phase
M
Solenoid valve
GU1
5
Valve actuator
312
PE
N
L
N
MV1
SV1
Circulation pump(s)
Alarm output
(Hygrostat RH2)
Hygrostat RH1
Start signal from TF1
230VAC / 24VDC
ContactorContactor
Overload protection Overload protection
Transformer
External high-voltage switch
3x400VAC+N+PE
50 Hz
9
15 Grey
2A
0.41/0.50A 0.41/0.50A
Max 250VAC 8A
Alarm
Normally-open
Normally-closed
F1
Black
Black
Black
Black
Black
Black
Black
Black
Black
Brown
Blue (Grey)
Brown
Black
Blue (Grey)
Light blue
Light blue
Light blue
Light blue
Dark blue
Grey
Green
Green
Brown
BrownBlue(grey)
Black
Brown
Blue
Brown
Red
Yellow
Violet
Orange
Orange
Orange
Grey
Dark blue
White
Ledarna skall ändmärkas
1
Controller (PLC)
264
135A2
246A1
2956496
N
/