Harman Stove Company Hot Air s SF1500A - Manual (Page 6)

6
3-90-70744R11_05/13
Bolt the automatic
draft control to the
bottom door. Be sure
to hold the unit straight
while tightening. After
the automatic draft
control is mounted,
the two wires must
be strung through the
flexible conduit and
two fittings supplied.
The knockout plug of
the junction box must
be removed to install
the conduit fitting.
Check the door of the
automatic draft control
to assure proper
operation. warning: Keep pieces of wood or coal out of
the draft door opening mechanism, as this could cause the
door to stick.
NOTE: Oil the hinge at the begining of the heating season
with a light oil.
The junction box is best mounted on the side of the furnace
about 1 in. back and 8 in. from the top of the sheet metal
side. (fig. C or D) If this location is inconvenient, anywhere
on the right side will work.
SF1500, SF2500, SF3500.
This figure represents the models; SF1500, SF2500, and
SF3500. It’s intention is to represent the approximate
location of the various controls. This drawing may also be
used as a recommendation for routing of the wiring and
approximate dimension of control spacing.
Please note that this
drawing is for reference
only. Each specific
installation will vary.
Furnace Installation
Installing wood/Coal high limit Switch- SF2600 only.
First, install the sheet metal sides as described in the
previous section. Install the snap disc switch into the hole
on the right side sheet metal. Then mount the open backed
junction box around the snap switch. Proceed with wiring as
shown on page 10. Also refer to Figure D. in this section.
mounting The Oil burner- SF2600 only.
Remove oil burner unit from it’s box. Loosen the four bolts in
the pipe on the front of the furnace. Insert the nose of the oil
gun into the pipe. Before sliding the oil burner all the way in,
apply the gasket around the nose of the oil gun by wrapping
it around the nose. Next, slide the oil burner into the pipe
and secure it by tightening the four bolts around the collar.
Be sure to tighten the bolts evenly to locate the oil burner
in the center of the pipe. The final set-up of the oil burner
should be done by an experienced oil burner technician with
the proper equipment. Refer to the SF2600 wiring diagram
on page 10 and the oil burner manual for proper burner set-
up. There is also a section at the end of this manual with
specific oil burner instructions.
venting guidelines.
Your Harman hot-air furnace must be vented to it’s own
separate flue-lined “Class A” chimney, not less than 8” X 8”
in size. The chimney must be capable of providing a draft
reading of at least .06” water column on a draft meter, in
order to function properly. The Chimney must be a minimum
of 16 ft. high, and must be two feet higher than anything
within 10 ft. The chimney must also be at least 3 ft. higher
than the point at which it exits or passes by the roof. A
barometric damper must be installed in the flue to eliminate
excessive draft. Any horizontal sections of connector pipe
must have at least 1/4 in. per foot rise. Limit the number of
elbows to two or less. All joints in the connector pipe must
be secured with sheet metal screws.
Assembly.
Bolt the shaker handle to the block on the lower left side of
the furnace, using the bolts and lock-washers provided.
Bolt the two manual draft controls to the front load door.
Proper installation allows the draft controls to open
approximately 1/2” from the door surface. See Figure 1.