Furnace User Manual

BLACKHEAT
®
INSTALLATION OPERATION AND SERVICE MANUAL
20 of 74
Step 6.4.1 Coupling and Tube Assembly (Continued)
Step 6.4.2 Coupling and Tube Assembly (Continued)
Incorrect Slide Bar
position
Correct Slide Bar
dimensions
± 50 mm
Drive slide bar until tight.
End of slide bar should be
within tolerance listed below.
• Repeat Step 6.4 A - D until all tubes are assembled. See Page 20, Section 6.4.2 shown below.
Tighten slide bar as shown below.
3050 mm Typ
± 250 mm
2290 mm
± 250 mm
Total Overall
Tube Length
Weld spot
at end of
heat exchanger
Model Overall Tube Length (mm)
Number
of Tubes
BH15ST 6,000 2
BH20ST 9,000 3
BH25ST/EF 9,000 3
BH30ST/EF 12,000 4
BH35ST/EF 12,000 4
BH40ST/EF 12,000 4
BH45ST/EF 15,000 5
BH50ST/EF 15,000 5
BH55ST 18,000 6