Thermo Products OH3-72 Furnace User Manual


 
All installations and services must be performed by qualified service personnel.
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D. FAN AND LIMIT POSITION AND LOCATION
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?WARNING: The predetermined fan and limit locations on all of the Thermo Pride oil fired
furnaces have been tested and approved by Thermo Products, LLC. in conjunction with
Underwriters Laboratories, Inc. 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 units listed in the table below must have the fan and limit control installed at the time of unit installation. A
locating bracket is provided with each of the units below.
TABLE 2: Installation location of
the fan and limit control for each
furnace
Fig. 7: Fan and limit location for lowboys, horizontal units and highboys.
FAN & LIMIT LOCATION FOR HORIZONTAL UNITS WITH AIR CONDITIONING COIL:
The fan & limit control should be mounted between the H-coil cabinet and furnace. For distances from top of plenum
and furnace, see Fig. 7. IMPORTANT: Do not try to mount fan/limit in H-coil cabinet.
NOTE:
The OL2, OC2 and OH2 only, come standard with an oil filter packaged with the furnace. This filter has the
capacity of filtering down to a 10 micron particle. This is to assure the small diameter burner nozzles in the low
heating capacity furnaces are installed with a fine filter to help prevent nozzle clogging.
E. BURNER INSTALLATION:
NOTICE:
Remove all cardboard packing from around chamber before installing burner.