Install Instructions

28
Table 15: Minimum Vacuum
Figure 24: Inlet Fan Vacuum Measurement
Figure 25: L404F Pressuretrol
Boiler
Model
Minimum Vacuum
IN3PVNI -0.40 inches w.c.
IN4PVNI -0.40 inches w.c.
IN5PVNI -0.70 inches w.c.
IN6PVNI -0.70 inches w.c.
VIII. Service Instructions (continued)
I. Housekeeping
1. Boiler area to be clear and free from combustible
materials,gasolineandotherammablevaporsand
liquids.
2. Removeobstructionstoowofcombustionand
ventilation air.