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10 | Product description
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
Boiler overall length (L)
Boiler block length (L
)
K
Boiler section insert (width; height; depth)
Boiler block insert (width; height; depth)
Combustion chamber length
Combustion chamber diameter
Burner door thickness
Burner pipe diameter (DB)
Hole circle diameter (DL)
Distance between boiler feet (F
1)
Net weight
–
Table 4
Dimensions, weight and other data for boilers without burners
1) Incl. packaging material approx. 6-8 % more
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.
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.
6 720 648 162 (2011/08)
Unit
Inch
(mm)
Inch
(mm)
Inch
(mm)
Inch
(mm)
Inch
(mm)
Inch
(mm)
Inch
(mm)
Inch
(mm)
Inch
(mm)
)
Inch
L
(mm)
Lbs
(kg)
Uni 171
Uni 207
31
(787)
(907)
26 ¾
(680)
(800)
−
18 1/8; 32 ¼ ; Length LK
(460 / 820)
21 ½
(546)
(668)
(337)
(112)
(150)
18
(455)
(575)
500
(227)
(272)
Uni 256
35 ¾
40 ½
(1027)
31 ½
36 ¼
(920)
18 1/8; 32 ¼ ; 5 7/8
(460 / 820 / 150)
26 ¼
(788)
13 ¼
3 ¾
(95)
4 3/8
5 7/8
22 ¾
27 ¼
(695)
600
700
(317)
31
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