Roberts Gorden Vantage twin Fire Unitary Infrared Heater TF-250 - Manual (Page 29)

SECTION 7: H EATER I NSTALLATION
23
Step 7.4.1 Coupling and Tube Assembly (Continued)
Step 7.4.2 Coupling and Tube Assembly (Continued)
Incorrect slide bar
position
Correct slide bar
dimensions
± 2" (5 cm)
Drive slide bar until tight.
End of slide bar should be
within tolerance listed below.
• Repeat Step 7.4 A - D until all tubes are assembled. See Page 23, Section 7.4.2.
Tighten slide bar as shown below
10' Typ. ± 1'
(254 cm Typ ± 25 cm)
7' 6" ± 1'
(229 cm ± 25 cm)
Model
Minimum Tube Length
Per Side
TF-120 20’ (6 m)
TF-160 20’ (6 m)
TF-200 30’ (9 m)
TF-250 40’ (12 m)
TF-300 50’ (15 m)
TF-350 50’ (15 m)
TF-380 60’ (18 m)
See recommended venting lengths
on Page 37, Section 9, when using
maximum tube lengths.