10
|
Product description
6 720 648 162 (2011/08)
2.8
Conditions for operation
Maintaining the specified operating conditions will
enable the boiler to provide a high level of reliability and
long service life.
1) Limit (safety temperature limiter, STB)
Maximum permitted flow temperature = Safety limit (STB) - 32 °F (18 K)
Example: Safety limit (STB) = 212 °F (100 °C), maximum permitted flow temperature = 212 ° (100 °C) - 32 ° (18 K) = 180 °F
(82 °C)
The safety limit must meet the national regulations of the country concerned.
Boiler model
Unit
Uni 171
Uni 207
Uni 256
Boiler overall length (L)
Inch
(mm)
31
(787)
35 ¾
(907)
40 ½
(1027)
Boiler block length (L
K
)
Inch
(mm)
26 ¾
(680)
31 ½
(800)
36 ¼
(920)
Boiler section insert (width; height; depth)
Inch
(mm)
−
18 1/8; 32 ¼ ; 5 7/8
(460 / 820 / 150)
Boiler block insert (width; height; depth)
Inch
(mm)
18 1/8; 32 ¼ ; Length LK
(460 / 820)
Combustion chamber length
Inch
(mm)
21 ½
(546)
26 ¼
(668)
31
(788)
Combustion chamber diameter
Inch
(mm)
13 ¼
(337)
Burner door thickness
Inch
(mm)
3 ¾
(95)
Burner pipe diameter (DB)
Inch
(mm)
4 3/8
(112)
Hole circle diameter (DL)
Inch
(mm)
5 7/8
(150)
Distance between boiler feet (F
L
)
Inch
(mm)
18
(455)
22 ¾
(575)
27 ¼
(695)
Net weight
1)
–
Lbs
(kg)
500
(227)
600
(272)
700
(317)
Table 4
Dimensions, weight and other data for boilers without burners
1) Incl. packaging material approx. 6-8 % more
CAUTION:
Risk of system damage if
operating conditions are not maintained.
Irreversible damage to individual
components of the boiler as a whole or the
heating system may occur.
B
The information on the rating plate is
binding and must be observed.