17
DOMESTIC HOT WATER
COIL
REAR WALL OF
FIREBOX
TURN INSIDE NUTS UP
TO END OF THREADS
1. NUT
2. WASHER
3. GASKET
2
3
4
5
6
ACCESS
PANEL
1
This Furnace will accept the installation of a Domestic Hot Water Coil
Kit. The kit is a 1124 Water Coil and it may be purchased from your
local dealer.
1. Remove the access panel on the rear of the furnace enclosure.
2. With a utility knife, cut away a section of the insulation (if
equipped) directly behind the access panel.
3. Remove the cover plate from the rear of the furnace firebox.
4. Place one nut on each end of the water coil and thread each nut up
to the end of the threads on the coil.
5. Insert the coil through the holes from the inside of the firebox.
Install a gasket, washer and nut onto each end of the water coil.
Tighten the nuts down securely to insure an air tight seal.
The installation is now ready to be plumbed to your existing hot water
system. Choose one of the three methods described in the Hot Water
Coil instructions.
6. Remove knockouts from the access panel and re-attach to the fur
-
nace enclosure.
Have a qualified plumber connect your domestic hot water pipe to the
coil with the appropriate fittings.
As mentioned earlier in this manual, a cold air return and/or filter box
should be incorporated into your furnace installation. A cold air re
-
turn or filter box will increase the life of your blowers and offer filtered
distribution air for your home. The model UFB908 is offered as an
option and can be purchased from your local dealer.
The UFB908 utilizes a standard 16” x 20” filter that can be purchased
from your local dealer or any hardware/duct work supply store. When
installing a UFB908, follow the installation instructions supplied with
the kit.
In the unlikely event that your furnace “overfires” (a condition evi
-
denced by elbows, stove pipes, and connectors glowing red in ap
-
pearance or otherwise discoloring), then your installation is subject
to excessive draft created by either a chimney too tall or too great in
diameter in conjunction with its height, or some other factor of an in
-
determinate cause. In this event, you should install a barometric draft
regulator. Such installation will preclude any over-firing and/or any
hazardous consequences of potential overfiring.
Barometric draft regulators are generally available where you pur
-
chased your stove.
UFB908 COLD AIR RETURN / FILTER
BOX - OPTIONAL KIT
DOMESTIC HOT WATER COIL KIT -
OPTIONAL
DR6 - 6” DRAFT REGULATOR KIT -
OPTIONAL KIT
Summary of Contents for SF747
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