Dimensions
Rated output
kW
390
530
720
950
1250
Volume
l
240
240
240
240
240
Part no.
7423 679
7423 680
7423 681
7423 682
7423 683
Weight with flue gas fan
kg
500
500
517
535
559
Dimensions
a
mm
350
350
350
400
450
b
mm
447
447
461
579
579
c
mm
2359
2359
2491
2444
2639
d
mm
3186
3186
3378
3452
3717
e
mm
1330
1330
1462
1462
1657
f
mm
1256
1256
1256
1300
1300
g
mm
600
600
660
690
760
h
mm
2080
2359
2491
2446
2641
k
mm
1670
1670
1730
2083
2153
l
mm
620
620
620
620
620
m
mm
1260
1260
1260
1020
1020
n
mm
1330
1330
1462
1462
1657
Dimensions
Rated output
kW
390
530
720
950
1250
Volume
l
800
800
800
800
800
Part no.
7423 684
7423 685
7423 686
7423 687
7423 688
Weight with flue gas fan
kg
641
641
691
709
749
Dimensions
a
mm
350
350
350
400
450
b
mm
447
447
461
579
579
c
mm
2359
2359
2491
2444
2639
d
mm
3186
3186
3378
3452
3717
e
mm
1330
1330
1462
1462
1657
f
mm
1256
1256
1256
1300
1300
g
mm
600
600
660
690
760
h
mm
2080
2080
2491
2446
2641
k
mm
1670
1670
1730
2083
2153
l
mm
620
620
620
620
620
m
mm
1260
1260
1260
1020
1020
n
mm
1330
1330
1462
1462
1657
Accessories, cleaning pneumatic
The whole tubular heat exchanger is cleaned with periodic blasts of
compressed air during operation. The process of cleaning itself is car-
ried out in consecutive blasting of the individual sections. The ash is
removed from the heat exchanger pipes by means of an extremely
short but strong pressure pulse. The loosened particles are carried in
the gas flow to the dust extractor, where they are largely separated
out. The device is integrated in the boiler door. The compressor should
preferably be installed where possible in a cool place in the boiler
room.
Function of the control unit:
The number of cleaning processes within a unit of time (e.g. per hour)
is matched according to the boiler load. An individual, complete clean-
ing process comprises a sequence of pressure pulses across all sec-
tions of the heat exchanger.
Standard delivery:
■ Nozzle part integrated in the flue gas collector; incl. connectors with
heat deflection discs
■ Compressed air distributor with container and valves; with heat-
resistant hoses connected to the nozzle part
■ Compressor (rotation compressor) for utility applications
– Supply output 160 l/min
– Container 90 l
– Pressure max. 10 bar
– Motor 1.5 kW
– 1450 rpm
– 3 x 400 V
– Incl. pressure regulator and pressure switch
– Sound power level 68 dBA
■ Compressed air hose up to max. 4.0 m length
■ Valves fully wired on terminal strip
■ Software module in the control unit
To be carried out on the customer side:
■ Provision of a socket 400 V / 16A
■ Connector for compressor 400 V / 16A
Specification
Rated output
kW
390
530
720
950
1250
Part no:
7423 689
7423 689
7423 690
7423 691
7423 691
Number of zones/valves
pce
8
8
5
6
Size of valves
6/4”
6/4”
6/4”
6/4”
6/4”
Max. air consumption under full load
l/h
3500
3500
4400
5300
5300
Additional weight (at the boiler)
kg
78
78
86
104
104
Installation accessories
(cont.)
PYROTEC
29
5822 511 GB
5
Summary of Contents for KOB PYROTEC
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