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USSC

CONNECTING HOT AIR DUCT

TO FURNACE

We  strongly  recommend  that  the  hot  air  duct  work  be 

installed by a home heating specialist. If doing the instal-

lation  yourself,  before  you  decide  which  installation  will 

best suit your needs, consult a qualified heating technician 

and follow his recommendations as to the safest and most 

efficient method of installation.
The warm-air supply-duct system shall be constructed of 

metal in accordance with NFPA 90B, 2-1.1. The plenums 

installed to the furnace be constructed of metal in accor-

dance with NFPA 90B, 2-1.3.
Outside the house you must use 10 inch galvanized pipe, 

wrapped with weather proof, UV resistant insulation. The 

12 inch return may be galvanized pipe and attached to 

the home so as to not pressurize the home.

NEVER 

reduce the 10” hot air or the 12” return air as this 

will result in restricted air flow and cause the furnace to not 

operate properly.

NEVER 

draw cold outside air into the blower housing. By 

doing so, the furnace’s heat chamber will not reach the 

necessary temperature to heat the home.
The duct work should be designed so the external static 

pressure does not exceed 0.2 inches water column while 

developing air velocities of 600 to 1,000 feet per minute 

in the main trunk duct and 400 to 600 feet per minute at 

the registers. 

The heat outlet should never be less than ten 

inches (10”) round or 79 square inches. 

This furnace must be installed with a cold air return system.

 

The system must be a minimum of twelve inches (12”) to 

readily  transfer  the  cold  air  from  the  home  back  to  the 

furnace. If desired, a cold air filter box may be constructed 

with a minimum opening of 225 square inches.

The  warm-air  supply  outlet  of  the  outdoor  furnace

  must 

not be 

connected to the cold-air-return inlet of an existing 

central furnace because the possibility exist of components 

of the existing furnace overheating and may cause the 

central furnace to operate other than intended.

TYPES OF INSTALLATION

NO DUCT WORK INSTALLATION

Cold air return must be installed in all installations, even those without an air duct system. If you do not, the furnace will 

not be able to heat the home. A filter should be installed in the cold air return. Furnace filters should be checked and 

cleaned/replaced regularly.

When there is no duct system to connect the furnace to, keep the following in mind:

1.  You must separate the hot air duct from the cold air 

return.  Ideally,  locate  each  at  opposite  ends  of  the 

home. This method will work well in homes that are built 

on concrete slabs and should create a good air flow. If 

you do not, air will not flow evenly through the home. 

2.  In  homes  with  a  basement,  you  may  run  the  hot  air 

duct to the basement and pull the cold air return from 

the main floor. This will create the perfect air flow since 

hot air rises.

Summary of Contents for Clayton 1600EF

Page 1: ...ve com SAFETY NOTICE If this furnace is not properly installed a house fire may result For your safety follow these installation instructions Contact local building or fire officials about restrictions and installation requirements in your area This furnace must be installed by a qualified technician Keep these instructions for future reference Installation Operator s Manual Safety Tested to UL 39...

Page 2: ...lector Switch 10 HOT AIR OUTLET Limit Switch Access 55 5 8 5 3 16 17 5 16 43 7 16 29 3 16 14 1 4 6 31 5 8 29 1 2 2 9 16 45 3 4 65 1 2 24 1 4 6 FLUE GAS OUTLET HOT WATER COIL ACCESS OPTIONAL 12 COLD AIR RETURN D RINGS FOR GUY WIRE ATTACHMENT ...

Page 3: ...eason for Purchase qAlternative Heat qMain Heat Source qDecoration qCost qOther_________________________ What was the determining factor for purchasing your new USSC appliance _______ I have read the owner s manual that accompanies this unit and fully understand the Installation q Operation q and Maintenance q of my new USSC appliance Print Name Signature Date Please attach a copy of your purchase...

Page 4: ... CUT HERE CUT HERE Ê É Fold Here Fold Here United States Stove Company P O Box 151 South Pittsburg TN 37380 Fold Here PLACE STAMP HERE ...

Page 5: ...r dealer immediately Review the items in cluded with your furnace located inside the firebox 1 10 Starter Collar 1 12 Starter Collar for Cold Air Return 8 10 x 3 4 Screws w Sealing Washer 1 Literature Package This furnace may be installed as a Stand Alone Central Furnace or as a Supplementary Furnace If installed as a Central Furnace this unit will have it s own central ducting system and will ess...

Page 6: ... down to the rings located around the top of the furnace cabinet See illustration The above clearances to combustibles must be maintained Someimportantrulesforpreparinggoodfirewoodare Cut split and stack the wood in the early spring and let it stand in the sun and wind all summer Whether you purchase your wood or cut it yourself spring is the best time to buy or cut your wood to insure it is good ...

Page 7: ...isters The heat outlet should never be less than ten inches 10 round or 79 square inches This furnace must be installed with a cold air return system The system must be a minimum of twelve inches 12 to readily transfer the cold air from the home back to the furnace If desired a cold air filter box may be constructed with a minimum opening of 225 square inches The warm air supply outlet of the outd...

Page 8: ...isting duct work Connect the duct with a 45 degree elbow or at an angle so the hot air from the outdoor furnace is delivered downstream This will insure proper air flow into the system Avoid delivering hot air through an air conditioning coil as this will cause an obstruction reducing heat output The following illustrations may be used as examples for your installation INSTALLATION EXAMPLES TYPES ...

Page 9: ...inst the door frame on the furnace Feed Door Illustration Ash Door Illustration 1 Feed Door Latch 1 Ash Door Latch 4 1 4 20 x 3 4 Hex Bolt 4 1 4 20 Kep Nut BRACKET Insert the Shaker Rod into the hole on the ash door frame as shown Then attach the Shaker Bracket to the front of the furnace using two 1 4 20 x 3 4 Hex Bolts and two 1 4 20 Lock Nuts Next insert the shaker Rod into the bracket and atta...

Page 10: ...o put the snap in plug C back in place Re silicone all the seams with weather resistant silicone 3 To remove the Distribution Blower E Unplug from power supply Remove items B and D as described above Unplug the blow er from the top of the Fan Center G Remove the four 4 screws retaining the blower 4 To remove the Blower Motor Unplug from power supply Perform number 3 above Before removing the motor...

Page 11: ...used to replace the rivets If baffle replacement is necessary slide the baffle out until you can access the nuts thru the flue outlet Once the nuts have been removed slide the baffle off the rod and thru the opening in the firebrick You may have to remove one of the firebrick to make baffle removal easier There are 4 full brick and 1 half brick in the top of the fur nace Install the brick by inser...

Page 12: ...t ash through Do not agitate the fire bed too often This practice will waste coal If glowing coal is visible in the ash pan you have shaken to much 2 Remove all ashes every day from ash pit CAUTION Ashesshouldbeplacedinametalcontainerwith a tight fitting lid The closed container of ashes should be placed on a non combustible floor or on the ground well awayfromallcombustiblematerialspendingfinaldi...

Page 13: ...tely inspect system for damage before further use NEVERthrowwateronthefireoratthefurnace asrapidly expanding steam could result in a severe scalding Slow fires It is not recommended burning the Clayton furnace any more than necessary early in the fall and late spring as you cannot keep the firebox hot enough without overheating your home to burn gases Slow fires can cause excessive creosote build ...

Page 14: ... E Make sure you re not suffocating the fire with exces sive amounts of unburned wood F Slide baffle should be pulled out prior to load door opening 4 Problem Distribution blower vibrating Solution A Tighten blower wheel to motor shaft B Check for bad fan bearings 5 Problem Distribution blower continues to run or will not run Solution A Check fan limit or heat sensor and cable B Check to see that ...

Page 15: ...15 USSC WIRING DIAGRAM ...

Page 16: ...16 USSC PARTS DIAGRAM ...

Page 17: ...ont 25744 1 38 Assembly Cabinet Back 69647 1 39 Insulation Back 88153 1 40 Insulation Holder 83884 16 Key Description Part Qty 41 Inner Top 25726 1 42 Insulation Top Front 88150 1 43 Insulation Top Middle 88151 1 44 Insulation Top Rear 88152 1 45 Mount Flue Outlet 25727 1 46 Weldment Cabinet Top 69648 1 47 D Ring Clip 83912 4 48 Bottom Intake 25722 1 49 Assembly Cabinet Door 69649 1 50 Latch Cabin...

Page 18: ...1 2 Carriage Bolt 83503 1 4 Lock Nut 3 8 16 83274 1 5 Actuator Motorized Draft 80592 1 6 Tube Flipper 23899 1 7 Flipper 23898 1 8 8 x 1 2 Tek Screw Hex Head 83455 2 9 Strain Relief 80154 1 10 Power Supply Cord 80593 17 in 11 Male Tyco Terminal 80382 2 PARTS DIAGRAMS AND LISTS MOTORIZED DRAFT KIT 4 ...

Page 19: ...Box Body 25743 1 3 Switch 3 Position 80361 1 4 Harness 6 Circuit Receptacle 80583 1 5 Harness 3 Circuit Receptacle 80584 1 6 Harness 2 Circuit Receptacle 80585 1 7 Transformer Fan Center 80130 1 8 Strain Relief 80154 1 9 Power Supply Cord 80232 1 10 10 x 1 2 Sheet Metal Screw 83172Z 13 11 Washer Internal tooth 10 83240 1 ...

Page 20: ...20 USSC NOTES ...

Page 21: ...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 in sure an air tight seal The installation is now ready to be plumbe...

Page 22: ...e center of the firebox The first flames will be long and generally orange or yellow and produce quite a bit of smoke As the gases burn off the flames become shorter change color and produce less smoke Once the fire is WELL ESTABLISHED add coal to the center of the firebox forming the cone Burning in this fashion allows heat to drive off the volatile gases and turbulence created increases the burn...

Page 23: ...ew minutes until the volatile gases have burned off It is not necessary to shake down the ashes each time you refuel the furnace Experience will be your best teacher BANKING THE FIRE For extended operation such as overnight the fire will need to be banked To do so heap coal up along the sides and back of the firebox so that the fire gradually burns it over a longer period of time The intensity of ...

Page 24: ...e reference When placing an order or for warranty claims please provide the following information found on the Certification Plate located inside the cabinet door PART NUMBER PART DESCRIPTION MODEL NUMBER______________ SERIAL NUMBER______________ United States Stove Company 227 Industrial Park Road P O Box 151 South Pittsburg TN 37380 423 837 2100 Customer Service 800 750 2723 Repair Parts 888 299...

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