Oil Furnace Installation Manual

506793-02BPage 4 of 16 Issue 1810
Non-Suspended Horizontal Installation
To support the furnace from below, set the furnace on non
-combustible material suitable to support the weight of the
unit. Using a carpenter’s level, check furnace in at least
two directions. To make adjustments, use shims of non-
combustible material. Seven inches minimum clearance
between the bottom of the ue pipe and combustible
material is required. Installation on a combustible oor
requires a 1” clearance from the oor for units with a front
ue and a 4” clearance from the oor for units with a rear
ue.
Horizontal Installation Reversing the Air Flow
This furnace is assembled to discharge warm air out
the left side (when viewed facing the burner side of the
furnace). If installation requires that the ow be reversed,
follow these steps:
1. Rotate the furnace 180° so that the warm air is
discharged out the right side.
2. Remove the oil burner and the screws securing the
burner mounting plate. Rotate the burner mounting
plate 180° and reattach with screws. Remount the
burner in the upright position.
3. Remove the screws holding the limit control in place.
Relocate the limit control to the top side of the front
panel using the knockout hole provided.
Counterow Installation
This furnace is assembled to discharge warm air out the left
side (when viewed facing the burner side of the furnace).
To convert to counterow:
1. Rotate the furnace so the return is on top and the
supply is on bottom.
2. Remove the oil burner and the screws securing the
burner mounting plate. Rotate the burner mounting
plate 90° clockwise and reattach the screws into the
heat exchanger. Remount the burner.
3. Refer to Figure 2 for minimum clearances required.
When installing a counterow unit on combustible
ooring, a combustible oor base must be used. See
Figure 3 for more information on using a combustible oor
base kit.
Figure 1. Minimum Clearances - Horizontal
Installations
E
D
B
G
F
A
C
C
Suppl
yR
eturn
Supply
Return
Front View
TopView
84 - 125
Front Flue
57 - 125
Rear Flue
A Top 1” 1”
B Duct 1” 6”
C Sides 1” 6”
D Bottom 1” 4”
E Rear 1” 24”
F Front 24” 24”
G Flue 7” 9”