20
5443 109 v1.9
Pyrot Technical Data
Dimensions
Boiler Model KRT-
150
220
300
400
540
a
in. (mm)
11
b
(292)
11
b
(292)
12
11/16
(323)
12
11/16
(323)
17
e
(442)
b
in. (mm)
9
7/8
(250)
9
7/8
(250)
11
7/8
(300)
13
7/8
(350)
13
7/8
(350)
c
in. (mm)
9
d
(232)
10
d
(257)
10
7/8
(277)
14 (355)
14 (355)
d
in. (mm)
14
1/16
(358)
14
1/16
(358)
13
7/16
(352)
14
c
(375)
14
c
(375)
e
in. (mm)
9
7/8
250
9
7/8
(250)
11
c
(300)
13
c
(350)
13
c
(350)
f
in. (mm)
4
7/8
(125)
4
7/8
(125)
5
7/8
(150)
6
7/8
(175)
6
7/8
(175)
It is recommended to install a draft damper in the chimney
1
.
The draft damper is field supplied.
Optional, the Viessmann supplied draft damper can be
installed in the flue gas pipe of the biomass boiler
2
.
The draft damper should be installed in the flue gas pipe
(not included) as close as possible to the chimney not
closer than 39
e
In. (1000 mm) to the outlet of the flue
gas blower. The final position has to be arranged with the
chimney supplier. The draft damper must be installed in
the heating room together with the biomass boiler.
Chimney Connection
Mechanical
recirculated flue gas
draft damper
