All installations and services must be performed by qualified service personnel.
5
Position the open end of the filter rack so as to provide access for filter replacement. Once the filter rack is
positioned correctly, scribe a line along the inside of the securing flange on three of the sides. To scribe a line on the
fourth side (the open end), use the open end support as a guide.
Remove the filter rack and cut the return air opening in the casing. Now the filter rack can be anchored to the furnace
with screws or pop-rivets through the securing flange of the filter rack.
Connect the return air plenum to the filter rack and slide the filter into place. Dimensions for adapting the return air
plenum to the filter rack are provided (See Fig. 2).
E. LIMIT POSITION AND LOCATION
c
WARNING: The predetermined limit location on this oil fired furnace has been tested and
approved by Thermo Products, LLC. Any attempt to relocate this safety control or replace this
safety control 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 limit control installed at the time of unit installation.
Fig. 3: Limit location for VHF-A**
TABLE 2: Installation location of
the limit control for each furnace
Summary of Contents for Spirit VHF-ABE
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