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USSC

INSTALLATION #3

The baffle on this system should be made the full width of 

the furnace plenum in order to properly direct the air into 

the distribution ducts.

INSTALLATION #2

Extending the hot air duct from the furnace into the existing 

plenum will help direct the flow of air from the furnace as 

well as the flow in the existing furnace.  Ducting entering 

the existing plenum at an angle (approximately 45 degrees) 

will facilitate air flow from the furnace while diverting air 

from the existing furnace.

THE PLENUM OPENINGS DIFFER

BETWEEN THE 1602 AND 1802

MODEL 1602 - 

13” x 18” Rectangular

MODEL 1802 -

 18” x 18” Rectangular

RETURN AIR IS VERY IMPORTANT

When installing a Clayton Furnace, return air 

MUST BE

 in-

corporated into the system. Return air can be provided 

by installing a separate duct system or by tying into the 

cold air return of an existing gas or oil furnace. The cold 

air return duct can be connected to the furnace with ei-

ther a factory manufactured U. S. Stove filter box, model 

UFB908 or an equivalent fabricated from sheet metal.
When  installing  a  cold  air  return,  the  minimum  size  shall 

be a 16” x 20” or equivalent (320 sq. in.) in order to insure 

proper furnace performance.  Failure to provide return air 

ducts of the specified size will void your warranty.
A filter should be installed in the cold air return. Furnace fil-

ters should be checked and cleaned/replaced regularly.
If return air is not provided, the warm air distributed into 

your  home  will  be  restricted  and  the  efficiency  of  the 

furnace is decreased. Without a return air system, warm 

air will be drawn into your basement, unnecessarily heat-

ing unused areas of the home. In extreme cases, if your 

basement  or  utility  room  is  fairly  airtight,  the  blowers  on 

the  furnace  could  depressurize  the  room  and  pull  toxic 

flue gases from the furnace, a gas water heater, or gas 

furnace. The fumes could then be distributed throughout 

the house.

COMBUSTION AIR

All fires need air (specifically oxygen) to burn. Furnaces, 

fireplaces, and wood burning furnaces need enough oxy-

gen  for  complete  combustion  of  their  fuels.  The  incom-

plete combustion that takes place when a furnace is “air 

starved”  causes  carbon  monoxide  (CO)  to  be  formed 

in quantities that can be dangerous inside a well sealed 

house.  Having  a  source  of  combustion  air  from  outside 

the  home  will  prevent  “air  starvation”  of  the  furnace.  A 

simple positive air supply can be constructed using dryer 

vent and a modified termination.

NEGATIVE 

PRESSURE IN 

BASEMENT

Summary of Contents for Clayton 1602G

Page 1: ... 37380 www usstove 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...

Page 2: ...himney to which the unit is attached The actual area that this unit will heat depends on factors such as the conditions of the building heat loss type of construction amount of insulation type of air movement the location of the unit and more importantly the duct work and return air facility Warning Do not alter this appliance in any way other than speci fied in these instructions Doing so may voi...

Page 3: ...EMOVAL When wood is burned slowly it produces tar and other organic vapors which combine with expelled moisture to form creosote The creosote vapors condense in the rela tively cool chimney flue of a slow burning fire As a result creosote residue accumulates on the flue lining When ignited this creosote makes an extremely hot fire The chimney connector and chimney should be inspected at least twic...

Page 4: ...mum of 1 4 to the foot At no time should the pipe turn downward toward the chimney or run horizontal 2 There should be no more than two 90 degree elbows 3 The connector pipe should never be longer than six feet If it is absolutely necessary to make a run of more than six feet not recommended use extra support brackets every 3 feet 4 The connector pipe should never be reduced to a smaller size than...

Page 5: ...sq in in order to insure proper furnace performance Failure to provide return air ducts of the specified size will void your warranty A filter should be installed in the cold air return Furnace fil ters should be checked and cleaned replaced regularly If return air is not provided the warm air distributed into your home will be restricted and the efficiency of the furnace is decreased Without a re...

Page 6: ...nting brackets on the left side of the door frames as illustrated The slots in the brack ets and latches are for door seal adjustment Make the proper adjustments then tighten the nuts The door s gas ket should be snug against 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 SHAKER GRATE HANDLE BRA...

Page 7: ...back The conduit assembly should already be attached to the limit control otherwise do so then make the correct wiring con nections to the limit control See wiring diagram 4 Next mount the junction box and insulation using two of the 10 x 1 2 screws provided Make a small slice in the 5 x 5 in sulation to allow the wires from the draft blower to protrude then Install it between the cabinet back and...

Page 8: ...ront of the furnace Then mount and secure the draft blower to the adapter with the three 10 24 Kep nuts Plug the blower into the out let on the front of the furnace 1 Draft Blower 1 Draft Blower Adapter 2 1 4 20 x 1 Hex Bolt 2 1 4 20 Lock Nut 3 10 24 Kep Nut FIREBRICK AND BAFFLE REPLACEMENT BAFFLE BRICK REPLACEMENT If baffle replacement is necessary slide the baffle out until you can access the nu...

Page 9: ...ng with a good bed of coals in the morning Open by pass damper 1 Innormalshaking onlyrockthegratesasmallamount to sift 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 ...

Page 10: ... extinguisher into the firebox After chimney fire is over completely 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 h...

Page 11: ...cap is not too close to the top of the chimney D Check chimney draft make sure chimney flue pipe is clean and chimney is of adequate height 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 beari...

Page 12: ...12 USSC PARTS DIAGRAM 11 12 13 16 15 17 14 7 10 5 2 3 6 32 31 4 3 2 1 37 3 8 9 24 26 25 27 17 16 3 19 18 20 28 29 30 36 21 22 34 34 35 23 33 ...

Page 13: ...3 86607 1 1 20 Lock Nut 1 2 13 83444 2 21 Gasket Flue Collar 88032 1 22 Flue Collar 40246 1 23 P Flue Collar Ring Flue Collar Ring 1800 22761 23958 1 1 24 Smoke Curtain 23800 1 25 Smoke Door Clip 23787 2 26 Carriage Bolt 1 4 20 x 1 1 4 Long 83445 2 27 Kep Nut 1 4 20 83250 2 28 P Cabinet Side Left Cabinet Side Front Left 1800 68821 68962 1 1 29 P Insulation Side Insulation Side 1800 C98771 23977 2 ...

Page 14: ...urn and or filter box should be incorporated into your furnace in stallation A cold air return or filter box will increase the life of your blowers and offer filtered distribution air for your home U S Stove offers the model UFB908 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...

Page 15: ...l The installation is now ready to be plumbed to your exist ing 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 furnace enclosure Have a qualified plumber connect your domestic hot water pipe to the coil with the appropriate fittings DR6 6 DRAFT REGULATOR KIT OPTIONAL KIT In the unlikely eve...

Page 16: ... method with the highest portion of your fire bed in the 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 v...

Page 17: ...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 BULLETIN RC454 A GUIDE TO BURNING COAL IN YOUR FURNACE 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 ...

Page 18: ...18 USSC NOTES ...

Page 19: ...19 USSC NOTES ...

Page 20: ...uture reference When placing an order or for warranty claims please provide the following information found on the Certification Plate located below the ash door PART NUMBER PART DESCRIPTION MODEL NUMBER 1602 1802 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 1440...

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