Roberts-Gordon HE15UT - Manual (Page 56)

B LACKHEAT ® HE I NSTALLATION O PERATION AND S ERVICE M ANUAL
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Figure 29: Individual Flue Connection Detail
Figure 30: Flue Connection Dimensions
11.6 Outside Combustion Air Supply
Clean air must be ducted into the burner box through the
100 mm diameter spigot on the back of the burner box.
See Page 49, Section 11.3 for recommendations on duct
length. Air duct should be as straight as possible. Consult
the manufacturer if more than 1 x 90° bend is necessary.
The fresh air duct must be self supporting.
11.6.1 Air Supply Requirements
When fresh air duct is used, follow one of these rules:
• The flue must penetrate the roof while fresh air can
penetrate any wall. (See Page 51, Figure 31).
• The flue and fresh air supply must penetrate the roof
at a minimum of 1,000 mm apart.
(See Page 51, Figure 31).
• The flue must penetrate 1,000 mm higher than the
fresh air inlet on the same wall. (See Page 51, Figure
31).
Fan Tube
Flue Pipe
Flue Adapter
Fan Assembly
Screw
(Torque: 2 Nm
18 in lb)
Lockwasher
Nut
Fan Tube Fan
A
B
C
End of Tube
A B C
MB 56 2B M 98 mm 105 mm 52 mm
Torin DSF-133-42 79 mm 95 mm 45 mm
Torin DSA-524-202 86 mm 102 mm 51 mm
Magnetek JF1G 89 mm 102 mm 51 mm
90710051 (IP55)
90710052 (IP55)
90710053 (IP55)
A B C
76 mm 95 mm 31 mm
82 mm 101 mm 38 mm
82 mm 101 mm 38 mm
Fan Part Number Fan Model