12
Duplexvent
Flexi-V 1500
Filter type
Flow rate (m
3
/h)
800
1000
1200
1500
1800
ISO
ePM1 55% (F7)
Initial pressure loss (Pa)
13
21
30
47
68
Final pressure loss (Pa)
200
200
200
200
200
ISO
ePM10 50% (M5)
Initial pressure loss (Pa)
2
4
5
8
11
Final pressure loss (Pa)
200
200
200
200
200
Duplexvent
Flexi-V 2500
Filter type
Flow rate (m
3
/h)
800 1000 1500 2000
2200 2500
ISO
ePM1 55% (F7)
Initial pressure loss (Pa)
13
18
31
48
55
67
Final pressure loss (Pa)
200
200
200
200
200
200
ISO
ePM10 50% (M5)
Initial pressure loss (Pa)
3
4
8
12
15
18
Final pressure loss (Pa)
200
200
200
200
200
200
Duplexvent
Flexi-V 3500
Filter type
Flow rate (m
3
/h)
1000 1500 2000 2500
3000 3500
ISO
ePM1 55% (F7)
Initial pressure loss (Pa)
10
13
24
30
47
64
Final pressure loss (Pa)
200
200
200
200
200
200
ISO
ePM10 50% (M5)
Initial pressure loss (Pa)
2
4
6
11
15
22
Final pressure loss (Pa)
200
200
200
200
200
200
Note: Values in the tables apply to external static pressure 200 Pa. Different pressure requirements
may result in a different situation. If needed, the detailed initial and final pressure loss data of the
filters are available on request from the supplier of the unit.
•
Make sure that the position of the label makes it possible to regularly inspect the values recorded.
•
Unscrew the rotating knob as much as possible to set zero on the scale (the bottom knob
identified by - +), then screw it back by approximately two full turns to have leeway to make
settings in both directions.
•
Unscrew the FILL plug (the top knob) and keep filling the machine with measuring liquid (included
in delivery) until the liquid is visible near the zero mark on the scale. Use the bottom knob to set
the value on the scale precisely to zero. Screw the top filling plug in.
After installing the manometers do not tilt the machine or the door (if they are installed on the
door). Measurement liquid might leak out.
4.9.
Installing hot water heating coil
During the mechanical installation of the hot water air heater follow the manual supplied with this
optional accessory.
The supply (and top-up) water should fulfil especially the following criteria:
•
The water must be limpid and colourless.
•
The pH value of water must not be lower than 7. If water contains dissolved neutral salts its pH
value is to be between 8,5 and 9,5. Soda lye or trisodium phosphate (Na
3
PO
4
) can be used for
alkalinisation.
•
The content of carbon dioxide in an ion and non-ion form is to be as small as possible.
•
The
remaining
supply water hardness
should be lower than 7 mmol/l (at q < 23 kW/m2) and 5
mmol/l (at q > 23 kW/m2).
•
To soften the water, the following chemicals can be used: trisodium phosphate Na
3
PO
4
or cation-
exchange resin (in case water is harder than 7 mmol/l; circuits with high volume of water; when
electrical boilers and radiation boilers are present).
•
The amount of
calcium ion
in the water up to 3,5 mmol/l (at q < 23 kW/m2) and up to 1,8 mmol/l
(at q > 23 kW/m2).
•
All
CO
2
up to 75 mg/l (at q < 23 kW/m2) and 10 mg/l (at q > 23 kW/m2).
Exact composition of top-up water is mentioned in the norm
Č
SN 07 7401
, in the annex, Table 1.
