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Not enough heat 1. Appliance undersized 2. Thermostat set too low. 3. Incorrect supply pressure. 1. This is especially true when a dwelling or room is enlarged. Have the heat loss calculated and compare to the appliance output (70% of input). Your gas company or installer can supply you with this information. If appliance is undersized, replace with correct size unit. 2. Setting of thermostat. See “Lighting and Shutting Down Instructions”. 3. Check supply pressure as outlined above. Too much heat 1. Thermostat set too high. 2. Combination control valve sticks open. 1. Lower setting of temp. dial. See “Lighting and Shutting Down Instructions”. 2. Replace combination control valve. TROUBLE SHOOTING CHART - AUTOMATIC PILOT & VALVE Burner won’t turn on 1. Pilot flame too large or too small. 2. Dirt in pilot orifice. 3. Defective automatic pilot section in combination control valve. 4. Defective Thermocouple. 1. Readjust pilot flame using adjustment screw marked “Pilot” on combination control valve. See Page 10. 2. Clean pilot orifice with air or solvent, do not ream. 3. Replace entire combination control valve. 4. Replace thermocouple. 5. Defective combination control valve. 5. Replace valve. Page 15 MODELS INCLUDED:GAS FLOOR FURNACE LIST PRICES 90N30A NAT. 90N50A NAT.Prices and specifications subject to change 90N65A NAT.witout notice. All prices 90N75A NAT. are F.O.B. factory. Specify model number when ordering parts. BURNER ASSEMBLY FOR: BURNER ASSEMBLY FOR: 10 1 2 3 4 14 13 11 12 18 26 17 22 1615 44 45 36 37 38 29 39 40 34 41 32 33 31 43 28 41 39 38 40 34 32 31 3327 36 42 90N30A 90N50A 90N65A 90N75A Mr. Contractor, we only sell parts through our wholesalers, but the prices listed are for your convenience. For prompt parts service, contact the wholesaler from which you purchased your Cozy heater. NOTE: Parts & schematic drawings on current models are shown at MARCH 2005 Page 16 HOW TO PROPERLY ORDER PARTS: In addition to part description and part number, please give model number, serial number, and type of gas used. This information can be found on the rating plate that is attached to heater. MODEL NUMBER NAT. 90N30A 90N50A 90N65A 90N75A PART DESCRIPTION REF. NO. PARTNO. LIST PRICE PART NO. LIST PRICE PART NO. LIST PRICE PART N O . LIST PRICE Heat Exchanger w/Gasket Gasket, Heat Exchanger Liner, Complete Assembly Grille, Floor 1 N/A 2 3 23074 74530 23001 23145 $206.20 $4.20 $167.60 $142.30 24099745302398024175 $291.10 $4.20 $148.90 $180.80 24499 74532 24380 24475 $331.90 $5.90 $161.00 $230.50 24699745352458024675 $370.40 $7.20 $202.90 $270.20 Casing, Complete Assembly Vision Cap, Complete Assy. Lighter Rod Valve Rod 4 10 11 12 23040 24048 74510 24035 $159.90 $14.10 $2.10 $3.70 24002240487451024035 $183.00 $14.10 $2.10 $3.70 24402 24048 74510 24035 $210.60 $14.10 $2.10 $3.70 24602240487451024642 $227.10 $14.10 $2.10 $3.80 Washer, Valve Rod Key, Furnace Instruction Plate, Lighting Valve Rod Indicator Plate 13 14 16 17 24044 74205 91256 24045 $1.20 $1.20 $4.50 $1.90 24044742059125624045 $1.20 $1.20 $4.50 $1.90 24044 74205 91256 24045 $1.20 $1.20 $4.50 $1.90 24044742059125624045 $1.20 $1.20 $4.50 $1.90 Drafthood Assembly w/Gasket Drafthood Gasket w/Screws Thermostat, Millivolt Wire, Thermostat 20' 18 19 22 23 23200 23225 74592 74518 $74.40 $3.70 $20.00 $1.30 24075240777459274518 $81.10 $4.80 $20.00 $1.30 24477 24077 74592 74518 $83.80 $4.80 $20.00 $1.30 24676240777459274518 $88.50 $4.80 $20.00 $1.30 Staples, Thermostat Wire Valve, VS821A1061 Nat. Gas M.V. Disappearing Bushing 1/4x3/8 L.P. Conversion Kit 24 26 37 N/A 74209 74315 74414 49200 $1.20 $164.30 $2.00 $22.70 74209743157441449210 $1.20 $164.30 $2.00 $22.70 74209 74315 74414 49220 $1.20 $164.30 $2.00 $22.70 74209743157441449330 $1.20 $164.30 $2.00 $22.70 Left Burner w/Pilot Bracket 75 Right Burner 75 Burner w/Pilot Brkt. & Air Adj. Pilot Generator, Q313A1014 M.V. 27 28 29 31 N/A N/A74401 70098 N/A N/A $22.30 $32.30 N/A N/A7440170098N/A N/A $22.30 $32.30 N/A N/A74402 70098 N/A N/A $24.40 $32.30 74403 74404 N/A70098$23.80 $21.80 N/A $32.30 Pilot Burner w/Orifice Q350A1271 N. Pilot Burner w/Orifice Q350A1589 LP Mounting Screws, Pilot (2) Pilot Tubing w/Fittings 32 32 33 34 74410 74415 50107 74452 $9.80 $9.80 $1.20 $7.00 74410744155010774452 $9.80 $9.80 $1.20 $7.00 74410 74415 50107 74452 $9.80 $9.80 $1.20 $7.00 74410744155010774452 $9.80 $9.80 $1.20 $7.00 Burner Support, Front Burner Support, Rear Manifold Burner Orifice, Natural Gas 36 N/A 38 39 24036 24038 74416 74390 $5.10 $2.60 $6.70 $3.40 24036240387441674406 $5.10 $2.60 $6.70 $3.40 24036 24430 74416 74407 $5.10 $2.90 $6.70 $3.40 240362462774412*74408 $5.10 $3.40 $24.00 $3.40 Burner Orifice, L.P. Gas Warning Flag Limit Control 60T11 Wiring Harness 39 41 42 N/A 74609 24068 *74306 74320 $3.40 $9.80 $9.30 $8.40 7460624068*74307 74321 $3.40 $9.80 $9.30 $8.70 74607 24068 *74308 74322 $3.40 $9.80 $9.30 $9.50 *74608 24068*74309 74323$3.40 $9.80 $9.30 $10.00 Piezo Ignitor Ignitor Wire Electr...
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