Lennox Baltic BHK 070 - Page 72

IOM / ROOFTOP BALTIC Series - 0704-E Page 71
HEATING : gas burner
Low Heat Injection Pressure Checks
- Switch the control to Low Heat
- Check and adjust if necessary the Outlet pressure to 3.5
mbar (G20) and 5 mbar for Groningue(G25) or 14 mbar for
propane (G31) (figure 20).
- After the adjustment of the low heat, re-verify the high heat
- re-position the stoppers and close the pressure ports.
Valve electrical control
- Check these values with an Ohmmeter.
Fig. 20
Pressure adjustments table for each type of gas
Category Supply Low Heat High Heat
pressure injection Injection
G20 20.0 +/-1 3.5 +/-0.1 8.4 +/-0.2
G25 (Groningue) 25.0 +/-1.3 5.0 +/-0.1 12.3 +/-0.2
G31 (GPL) 37.0 +/-1.9 14.0 +/-0.3 31.4 +/-0.6
2.90K
1.69K
Fig. 21