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All installations and services must be performed by qualified service personnel.
5
E. LIMIT POSITION AND LOCATION
cWARNING: The predetermined limit locations on all of the Thermo Pride oil fired furnaces
have been tested and approved by Thermo Products, LLC. Any attempt to relocate these safety
controls or replace these safety controls with a control that is not approved, or is incompatible,
may result in personal injury, substantial property damage or death.
The unit listed in the table below must have the fan and limit control installed at the time of unit installation.
Fig. 7: Limit location for OH5-85DXE***
F. BURNER INSTALLATION:
The oil burner will mount on three stud mounting bolts on the lower mounting plate covering the opening in the
front of the heat exchanger. The end of the burner tube should be inserted no further than 1/4 inch back from the
inside surface of the combustion chamber. A distance further than 1/4 inch back from the inside chamber wall may
cause impingement and sooting.
NOTE: OVERFIRE AIR TAP MAY BE LOCATED ON EITHER SIDE OF FLAME INSPECTION
COVER. (See Fig. 8).
RIELLO MOUNTING PLATE
Fig. 8: Typical location of the overfire air tap
TABLE 2: Installation location of
the fan and limit control for each
furnace