United States Stove 24A manual

USSC Page 1 851731 UNITED ST A TES STOVE COMP ANY 227 Industrial Park Road P .O. Box 151 South Pittsburg, TN 37380 All installations must be made in accordance with local and state codes which may dif fer from this manual. W ood & Coal Burning Furnace Owners Manual Models: 24A, 30A TESTED TO UL 391[...]

Page 2 USSC CHIMNEY INST ALLA TION Y our new fur nace must be installed into a "Class A" Chimney only. This type of chimney consists of a flue lined brick chimney, or an approved "Class A" all fuel factory built (prefabricated) type. Any other installation guarantees an immediate fire haz- ard. Do not install the furnace into th[...]

USSC Page 3 ...to the world of solid fuel heating! Y our new furnace has been designed and built with a high grade of materials and the strictest regard to quality. Before you start installing your new furnace, take the time to read these instal- lation and operating instructions. W e have prepared them for your benefit to save time and provide som[...]

Page 4 USSC Rules for the Safe Installation and Operation of Y our Furnace... Check local codes, the installation must comply with strict conformance in regard to clearances. The Furnace must be installed on a noncombustible floor . Connect the furnace to tile lined inside masonry chim- ney or approved insulated all fuel prefabricated chim- ney onl[...]

USSC Page 5 How Y our New Fur nace W orks Unlike conventional heating (gas, oil, electric), wood or coal heating requires more user attention. Y our furnace, with its automatic combustion air blower , alleviates the constant need for adjusting the burn- ing rate common to other units on the market. The fire, however , must be started and subsequent[...]

Page 6 USSC Furnace location Before you start! It is very important you check with your dealer , local fire department, or building inspector . They will be able to inform you of any state or local codes per- taining to the location and installation of your fur- nace. The ideal location for your furnace is centrally located in the basement. This al[...]

USSC Page 7 INST INST INST INST INST ALL ALL ALL ALL ALL A A A A A TION TION TION TION TION Y our furnace is designed to be added on to existing duct work and operate either with or without another heat source such as a gas furnace. The following diagrams illustrate acceptable ways of ducting your furnace. Clearance to Combustible Materials Y our F[...]

Page 8 USSC WHAT SIZE CHIMNEY SHOULD BE USED? The Chimney size to use is either six (6) or (8) inch round or an 8 x 8" square. If you use a rectangular chimney , the mini- mum area it may be is 39 square inches. "Class A" chimneys are those made from tile-lined masonry (brick or block) or an independent laboratory approved all- fuel [...]

USSC Page 9 F ACTOR Y -BUIL T OR MET AL CHIMNEYS If your home has an existing metal chimney, the same rules apply as with masonry chimneys. One thing to be espe- cially aware of is that "Class B" chimneys are for gas appli- ances only, not solid fuel burners. If purchasing a new pack- age, consult with the dealer . He will provide the nec[...]

Page 10 USSC NOTE: Y our furnace may come partially pr e-assembled, but in the case that it is not, follow the instructions below. Also use these instructions for future maintenance and disassembly. Drawings and photos are for illustration purposes only. Actual parts may differ. Prior to assembling, place the unit in the general vicinity of the ins[...]

USSC Page 11 6. Attach low voltage thermostat No. 18 up to 30 ft. run No. 16 to 15ft. Run (purchase locally) to ter- minal plate, screws identified with letters G & R. (Generally top row center , bottom r ow right). Snake wire through holes in top of box. Replace outer covers & control knob. Under no circum- stances should you attempt to pl[...]

Page 12 USSC 10. Install grate frame (if not already installed): Lay the first grate frame on the side supports and slide to the back of the unit. Then install the second grate frame to the front as shown in the picture above. The smooth ends of the frames should be together in the middle. For the model 30A, insert the half grate frame in the middl[...]

USSC Page 13 13 . Installing front and rear cast baffles, heat plates. NOTE: Grate frames and brick will slide forward and backward to allow baffle to fit. Install front cast baffle using two (2) 5/16 bolts, nuts & wash- ers (7/16 wrench will be needed). Place the side of the baffle that has the two ribs against the front weld of the firebox. D[...]

Page 14 USSC 18 . Installing steel smoke shield. Two (2) holes are provided above each corner of the feed door . Slide the two (2) bolts, supplied in the parts bag, into the holes. Next, place the two (2) clips pro- vided onto each bolt and then attach the two (2) nuts on each bolt. Before tightening the bolts and nuts securely, slide the smoke shi[...]

USSC Page 15 -- -- -- -- -- -- -- 1. 2. 3. 4. Relay...electrical switching device, Rheostat...current (voltage) reducer increases or decreases draft fan R.P .M. Distribution Capacitor: Reduces amps required to activate distribution fan. Transformer: Reduces voltage 110 volts to 24 volts for thermostat usage. Generally hums a bit. 170 degree limit d[...]

Page 16 USSC 5. 6. 7. 8. 9. 10. Push in bypass damper after fire has progressed. Y our furnace is capable of putting out many BTU's, so don't fully load your furnace until you have be- come familiar with the operation of the furnace. Keep in mind, a full load will not always give you the best results for your needs. Note: With new steel, [...]

USSC Page 17 BURNING COAL Y our furnace is capable of bur ning both Bituminous and Anthracite coal. Anthracite is perhaps the best coal fuel because its long even burn time, high heat output, and cleanliness make it a good choice for the home. However , keep in mind it is a much more difficult fuel to use, requires more care and patience, is not so[...]

Page 18 USSC If, however , there is no flame then the fire needs more air from the bottom (unless it is near the end of its burn cycle and needs to be recharged). Only when the coal is burned down to half its origi- nal depth is it time to add fresh coal. When doing so, open your stove pipe damper , which will allow the fire to burn off any accumul[...]

USSC Page 19 Whenever the loading door is opened, it should be cracked slightly (for about ten (10) seconds) to allow oxygen to enter and burn any combustible gases that are present before fully opening. Failure to do this could result in sudden ignition of the unburned gases when the door is opened. This furnace is equipped with a safety latch sys[...]

Page 20 USSC TROUBLE-SHOOTING, PROBLEM SOL VING FOR YOUR FURNACE 1. 2. 3. Problem: Smoke puffs from furnace. Solution: Check chimney draft. Check for blocked chim- ney or flue pipe. Use mirror to check chimney clearance. Check ash pit - if too full, empty. Make sure furnace room is not too airtight. Make sure all chimney mortar connections are air [...]

USSC Page 21 REP REP REP REP REP AIR P AIR P AIR P AIR P AIR P ARTS DIA ARTS DIA ARTS DIA ARTS DIA ARTS DIA GRAM GRAM GRAM GRAM GRAM[...]

Page 22 USSC KEY P ART # DESCRIPTION QTY. 1 24490 LEFT CABINET SIDE 1 - 25613 LEFT CABINET SIDE (30A) 2 24489 RIGHT CABINET SIDE 1 - 25614 RIGHT CABINET SIDE (30A) 3 24488 CABINET TOP 1 - 25615 CABINET TOP (30A) 4 69542 ASSY ., FEED DOOR 1 5 69559 ASSY ., ASH DOOR 1 6 89636 DOOR HANDLE 1 7 83835 1/2” W ASHER 2 8 83444 1/2-13 LOCK NUT 2 9 40379 SP[...]

USSC Page 23 WIRING SCHEMA WIRING SCHEMA WIRING SCHEMA WIRING SCHEMA WIRING SCHEMA TIC TIC TIC TIC TIC[...]

Page 24 USSC HOW TO ORDER REP HOW TO ORDER REP HOW TO ORDER REP HOW TO ORDER REP HOW TO ORDER REP AIR P AIR P AIR P AIR P AIR P ARTS ARTS ARTS ARTS ARTS THIS MANUAL WILL HELP YOU OBT AIN EFFICIENT, DEPENDABLE SER VICE FROM YOUR FURNACE, AND ENABLE YOU TO ORDER REP AIR P ARTS CORRECTL Y. KEEP THIS MANUAL IN A SAFE PLACE FOR FUTURE REFERENCE. WHEN WR[...]