Install Instructions

6
Commissioning the heating system
Logano G115 WS US/CA – 6 720 813 418 (2014/10) 31
6.7.2 Removing heat exchanger baffles
You can remove the baffle plates in pairs to raise the flue gas
temperature.
▶ Open burner door by removing the two hexagon-head bolts at the
sides.
▶ Remove the baffle plates towards the front.
▶ Close burner door with the two hexagon bolts (approx. 90 inch-lbs)
Tighten the hexagon bolts evenly to properly seal the burner door.
▶ Re-check the flue gas temperature.
Fig. 31 Removing heat exchanger baffles
When you need/want to remove flue baffles for fresh air operation, you
can use the Table below to estimate the effect on stack temperature.
Flue baffles Increase in stack temperature
▶ Close burner door and secure with burner door bolts (ca 90 Lbs/
inch). Tighten bolts evenly.
▶ Install burner cable back to burner disconnect.
▶ Recheck tightness of burner door after operation the burner for
10 minutes.
▶ Check stack temperature again.
Fig. 32 Flue baffle plates for fresh air operation
[1] Flue baffle plates Nr. 1
[2] Flue baffle plates Nr. 2
[3] Flue baffle plates Nr. 3
6.7.3 Removing the heat exchanger barrier plate
You can remove the blocking plate to further raise the flue gas
temperature if the flue gas temperature is still too low after removing of
the baffles.
▶ Open burner door by removing the two hexagon-head bolts at the
sides.
▶ Remove diverter plate by loosening bolt.
▶ Re-check the flue gas temperature.
Fig. 33 Removing the heat exchanger barrier plate
Flue baffels Stack Temperature
Removal of Nr. 3 About 40 °F
Additional Removal of Nr. 2 Additional 40 °F
Table 13 Increase in stack Temperatures
7 747 019 141-31.1RS
1
2
3
3
1
2
6 720 813 418-01.1T
7 747 019 141-32.1RS