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Williams 4003531 manual

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Table of contents for the manual

  • Page 1

    Save this manual for future reference. SOLID STATE IGNITION 5 0 6 0 7 0 8 0 9 0 50 60 70 80 90 WINDOW W ALL FURNACE DIRECT -VENT PROP ANE/LP GAS HEA TER OWNER’S OPERA TION AND INST ALLA TION MANUAL 2503531 4003531 25,000 and 40,000 BTU/Hr Furnaces FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity o[...]

  • Page 2

    2 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE 6. This furnace must have fresh air for proper operation. If not, poor fuel combustion and improper venting of flue gases will result. Carbon monoxide poisoning from backed- up flue gases could occur . The State of California lists carbon monoxide as a re- productive toxin u[...]

  • Page 3

    3 201843 OWNER’S MANUAL LOCAL CODES UNP ACKING 1. Remove furnace from carton. 2. Remove all protective packaging ap- plied to furnace for shipment. 3. Remove the following items from carton: • Hardware package containing four large screws, two small screws, and thermostat mounting plate • Hardware package (thermostat and two screws) • Equip[...]

  • Page 4

    4 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE 6" Minimum Adjacent Side Wall Ceiling Finished Floor, Carpet, Tile, etc. 12" Minimum 12" Minimum Figure 1 - Mounting Clearances as Viewed from Front of Furnace The clearance between the cabinet and the wall it passes through is 0 inches. Provide the following [...]

  • Page 5

    5 201843 OWNER’S MANUAL CREATING WALL OPENING AND MOUNTING FURNACE Remove furnace front cover. Remove the two screws at the lower edges of front cover. Lift front cover away. Installing in Normal Frame Wall The 25,000 BTU/Hr model is designed to fit between two wall studs set at 16 inch on center. The 40,000 BTU/Hr model will not fit between wall[...]

  • Page 6

    6 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE 6. Attach thermostat to thermostat mount- ing plate with screws provided (see Fig- ure 4). IMPOR T ANT : Note mounting plate position in Figure 4. Correctly position mounting plate for your model furnace. 7. Insert thermostat mounting plate be- tween wall and cabinet flange.[...]

  • Page 7

    7 201843 OWNER’S MANUAL 10. Feed thermostat wires from attic to furnace through 1/2" hole in ceiling wall plate. 1 1. Connect thermostat wires from attic to thermostat wires on furnace. Connect red wires together , then connect white wires together . Use wire nuts to make connections. IMPORT ANT : Make sure thermostat wires do not touch comb[...]

  • Page 8

    8 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE WARNING: Never use an open flame to check for a leak. Apply a mixture of liquid soap and water to all joints. Bubbles forming show a leak. Correct all leaks at once. Connecting Furnace to Gas Supply at Rear of Furnace 1. Remove the two screws in back of fur- nace cabinet loc[...]

  • Page 9

    9 201843 OWNER’S MANUAL CAUTION: Never connect heater directly to the propane/LP supply. This heater requires an external regulator (not supplied). Install the external regulator between the heater and propane/LP supply. The installer must supply an external regulator. The external regulator will reduce incoming gas pressure. You must reduce inco[...]

  • Page 10

    10 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE INST ALLA TION (Continued) Installation must include an equipment shutoff valve (supplied), ground joint union, plugged 1/8" NPT tap, and a sediment trap. Locate NPT tap within reach for test gauge hook up. NPT tap must be upstream from furnace (see Figure 15). Install[...]

  • Page 11

    11 201843 OWNER’S MANUAL Test Pressures Equal To or Less Than 1/2 PSIG (3.5 kPa) 1. Close equipment shutoff valve (see Fig- ure 16). 2. Pressurize supply piping system by either using compressed air or opening main gas valve located on or near gas meter . 3 . Check all joints from gas meter to equipment shutoff valve. Apply mix- ture of liquid so[...]

  • Page 12

    12 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE WARNING: Furnace burner, combustion chamber, and ex- haust port are very hot during operation. Keep children and adults away from hot surfaces to avoid burns and clothing igni- tion. Carefully supervise young children when they are in the same room as furnace. Furnace will [...]

  • Page 13

    13 201843 OWNER’S MANUAL OPERA TING FURNACE (Continued) 1. Set thermostat to lowest setting 2. T ur n equipment gas valv e clockwise to OFF position. Do not for ce equipment gas valve. 3. Unplug furnace if service is to be per - for med. To Shut Down Furnace for an Extended Period of Time 1. T ur n equipment gas valv e clockwise to OFF position. [...]

  • Page 14

    14 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE WARNING: Turn off and un- plug furnace and let cool before cleaning. Turn equipment shutoff valve to OFF position. Only a qualified service person should service and repair furnace. WARNING: Keep furnace clear and free from combustible mate- rials, gasoline, and other flam-[...]

  • Page 15

    15 201843 OWNER’S MANUAL TROUBLESHOOTING WARNING: Turn off and unplug furnace and let cool before servic- ing. Unless you need gas supply for testing, shut off equipment shutoff valve before servicing. Only a qualified service person should service and repair furnace. Continued Note: All troubleshooting items are listed in order of operation. OBS[...]

  • Page 16

    16 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE TROUBLESHOOTING Continued The electronic system is made up of two parts: the ignition control and the glo bar. The ignition control is the brain of the elec- tronic system. It has several functions: 1. When the blower reaches full r .p.m., a 24-volt circuit is completed to [...]

  • Page 17

    17 201843 OWNER’S MANUAL OBSERVED PROBLEM Ignition failures POSSIBLE CAUSE 1. Glo bar will not glow - with blower run- ning and microswitch engaged 2. Glo bar glows but burner will not come on 3. Glo bar operating and gas valve open- ing but burner will not light 4. If the ignitor remains on after main burner ignition or the valve chatters, re- v[...]

  • Page 18

    18 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE www.desatech.com OBSERVED PROBLEM Ignition failures Excessive noise Main burner will not cycle off Furnace will not operate POSSIBLE CAUSE 5. Burner cycles off and glo bar comes on immediately , check the following: 1. Blower out of balance 2. Motor hums 1. Thermostat setti[...]

  • Page 19

    19 201843 OWNER’S MANUAL 1 2 3 4 5 6 7 Junction Box Black Green ▲ White Black White White Black Transformer White Brown Brown Black Motor Green 370 V.A.C. Capacitor 5 MFD Terminal Block Black Thermostat White Red Black Yellow Blue Brown Green Black Brown White Ignition Control Board Probe ♦ Black White White Glo-Bar Gas Valve Time Delay Relay[...]

  • Page 20

    20 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE KEY PART NO. NUMBER DESCRIPTION QTY. 1 030643 Front Cover Assembly 1 2 121520 Screw, #8 x 3/8" ** 2 3 191240 Front Cover Trim* 1 4 160912 Thermostat 1 5 100892 Cabinet Assembly 1 6 070509 Cabinet Insulation (right and left sides) 1 7 121224 Screw, #10 x 3/4" ** 4 [...]

  • Page 21

    21 201843 OWNER’S MANUAL ILLUSTRA TED P AR TS LIST CABINET ASSEMBLY 40,000 BTU/HR MODEL This list contains replaceable parts used in your furnace. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. 2 5 6 1 7 4 9 8 10 SOLID STATE IGNITION 50 60 70 80 90 50 60 70 80 90 3 KEY PART NO. NUMBER DESCRI[...]

  • Page 22

    22 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE ILLUSTRA TED P AR TS LIST COMBUSTION CHAMBER ASSEMBLY 25,000 BTU/HR MODEL This list contains replaceable parts used in your furnace. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1[...]

  • Page 23

    23 201843 OWNER’S MANUAL ILLUSTRA TED P AR TS LIST COMBUSTION CHAMBER ASSEMBLY 40,000 BTU/HR MODEL This list contains replaceable parts used in your furnace. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 121502 Screw, #6 x 3/8" ** 2 2 231950 Flame[...]

  • Page 24

    24 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE ILLUSTRA TED P AR TS LIST BURNER ASSEMBLY 25,000 BTU/HR MODEL This list contains replaceable parts used in your furnace. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. 1 2 3 4 5 6 7 8 9 10 11 12 KEY PART NO. NUMBER DES[...]

  • Page 25

    25 201843 OWNER’S MANUAL ILLUSTRA TED P AR TS LIST BURNER ASSEMBLY 40,000 BTU/HR MODEL This list contains replaceable parts used in your furnace. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 120717 Hex Nut, #10-24 ** 4 2 010621 Left Burner Assembly 1 [...]

  • Page 26

    26 201843 DIRECT -VENT PROP ANE/LP GAS HEA TER THE COMFORT PR ODUCTS PEOPLE ILLUSTRA TED P AR TS LIST BLOWER ASSEMBLY 25,000 BTU/HR MODEL This list contains replaceable parts used in your furnace. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. 1 2 3 4 6 5 7 8 9 10 11 12 13 17 15 16 17 17 18 19[...]

  • Page 27

    27 201843 OWNER’S MANUAL ILLUSTRA TED P AR TS LIST BLOWER ASSEMBLY 40,000 BTU/HR MODEL This list contains replaceable parts used in your furnace. When ordering parts, follow the instructions listed under Replacement Parts on page 19 of this manual. KEY PART NO. NUMBER DESCRIPTION QTY. 1 070570 Combustion Air Cover Gasket 1 2 121252 Screw, #10 x 3[...]

  • Page 28

    W ARRANTY INFORMA TION KEEP THIS WARRANTY Always specify model and serial numbers when communicating with the factory. We reserve the right to amend these specifications at any time without notice. The only warranty applicable is our standard written warranty. We make no other warranty, expressed or implied. Model __________________________________[...]