Roberts Gorden 10081601NA Rev H 12/11 - Manual (Page 51)

SECTION 8: C OMMISSIONING T HE CORAYVAC ® S YSTEM
45 of 62
FIGURE 26: End Vent Vacuum
6
5
4
3
2
1
0
1
2
3
4
5
6
Manometer
Insert tubing
about 6" (15cm)
into end vent.
Combustion Chamber
at end burner position
End Vent
Approximate reading after adjusting
VFD frequency setting and/or
damper couplings. ( 2.5"-3" wc) ~~