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Installation accessories
Dimensions
Rated output
Volume
Part no.
Weight with flue gas fan
Dimensions
a
b
c
d
e
f
g
h
k
l
m
n
Dimensions
Rated output
Volume
Part no.
Weight with flue gas fan
Dimensions
a
b
c
d
e
f
g
h
k
l
m
n
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
Specification
Rated output
Part no:
Number of zones/valves
Size of valves
Max. air consumption under full load
Additional weight (at the boiler)
PYROTEC
(cont.)
kW
l
7423 679
kg
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
kW
l
7423 684
kg
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
mm
■ Compressor (rotation compressor) for utility applications
■ 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
kW
390
7423 689
pce
8
6/4"
l/h
3500
kg
78
390
530
720
240
240
240
7423 680
7423 681
500
500
517
350
350
350
447
447
461
2359
2359
2491
3186
3186
3378
1330
1330
1462
1256
1256
1256
600
600
660
2080
2359
2491
1670
1670
1730
620
620
620
1260
1260
1260
1330
1330
1462
390
530
720
800
800
800
7423 685
7423 686
641
641
691
350
350
350
447
447
461
2359
2359
2491
3186
3186
3378
1330
1330
1462
1256
1256
1256
600
600
660
2080
2080
2491
1670
1670
1730
620
620
620
1260
1260
1260
1330
1330
1462
– 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
530
720
7423 689
7423 690
8
6/4"
6/4"
3500
4400
78
86
950
1250
240
240
7423 682
7423 683
535
559
400
450
579
579
2444
2639
3452
3717
1462
1657
1300
1300
690
760
2446
2641
2083
2153
620
620
1020
1020
1462
1657
950
1250
800
800
7423 687
7423 688
709
749
400
450
579
579
2444
2639
3452
3717
1462
1657
1300
1300
690
760
2446
2641
2083
2153
620
620
1020
1020
1462
1657
5
950
1250
7423 691
7423 691
5
6
6/4"
6/4"
5300
5300
104
104
29
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