Williams 2903511, Installation Instructions And Owner'S Manual

Page 1: ...losion may result causing property damage personal injury or loss of life Williams Furnace Co 250 West Laurel Street Colton CA 92324 U S A MODEL Natural Gas Only 2903512 MODEL Propane Gas Only 2903511...

Page 2: ...d repair should be done by a QUALIFIED SERVICE TECHNICIAN The installation must conform to local codes or in the absence of local codes the installation must conform to the National Fuel Gas Code ANSI...

Page 3: ...lified service technician to inspect the furnace and to replace any part of the control system and any gas control which has been under water Safety Information for Users of LP Gas Propane LP Gas is a...

Page 4: ...is a good safety measure under any condition If at any time you do not smell the LP Gas odorant and you should assume you have a leak Then take the same immediate action recommended above for the occa...

Page 5: ...th CAN CSA C22 2 No 3 Installations in the State of Massachusetts All installations in the State of Massachusetts must use the following requirements when installing maintaining or operating direct ve...

Page 6: ...ne of the terminal 18 inches 46 cm minimum E Clearance to unventilated soffit 12 inches 30 cm minimum clearance to vinyl soffit 36 inches 90 cm minimum F Clearance to outside corner 12 inches 30 cm mi...

Page 7: ...ipe in the wall through the hole provided in the support bracket Place the round adhesive gasket around the hole so that the air pipe remains in its position 6 Attach the supporting bracket with the s...

Page 8: ...ace 14 Position the vent cap and attach it with the screws Figure 7 15 Connect the female end of the three prong plug to the furnace connection on the bottom of the furnace 16 Connect the gas supply l...

Page 9: ...s pressure and settings Minimum Burner Pressure Setting a Set LOW burner capacity by pressing button Z2 b Connect a micro manometer to the test gauge B Figure 8 c Rotate the internal screw D Figure 8...

Page 10: ...he inlet pressure to the gas valve a plugged tapping accessible for test gauge connection is provided on the gas valve Figure 8 2 The appliance and its individual shutoff valve must be disconnected fr...

Page 11: ...pressure must be checked both in Hi and Lo input The gas manifold pressure must be as shown in the Technical Data Differences of plus or minus 0 1 in w c are accepted If the Hi or Lo gas manifold pres...

Page 12: ...SSURE SWITCH FLAME SENSOR SPARK IGNITER 2 pcs COMBUSTION BLOWER MOTOR FLAME VIEW LAMP GREEN LAMP SB TR Z1 Z2 Z3 Z8 Z9 L1 L2 GND LOCK OUT LAMP RED LAMP TRANSFORMER 120 24 V RESET AND SUMMER WINTER SWIT...

Page 13: ...ot try to light any appliance Do not touch any electric switch Do not use any phone in your building Immediately call your gas supplier from a neightbor s phone FOR YOUR SAFETY READ BEFORE OPERATING W...

Page 14: ...rnace will operate in heating mode according to the thermostat and or clock s program When the button is down the appliance will provide ventilation MIN MAX BUTTON For faster heating keep this button...

Page 15: ...solution and correct any leaks prior to operating the furnace The HI and LO pressures must be adjusted as explained above Never try to adjust them independently from each other Checking Removing and...

Page 16: ...s 4 Check air flow switch 5 Clean and check exhaust flue pipe and air intake pipe 6 Check for gas leaks on all connections 7 Check and adjust gas pressure Check red O Ring Gasket NRNG003 If it is dama...

Page 17: ...tion Programmable day blocks 1 2 3 4 5 Monday Friday 1 2 3 4 5 6 Monday Saturday 1 2 3 4 5 6 7 Monday Sunday 6 7 Saturday Sunday KEY A On Off Switch Pos I The appliance is controlled by the room therm...

Page 18: ...7 Figure 10 D a triangular shaped indicator proceeds one day at a time Number 1 stands for Monday number 2 stands for Tuesday etc C To set the time press the Hour Selector button h Figure 10 E to set...

Page 19: ...ght Press the Program Selector Figure 10 C button and select the program to be cancelled B Simultaneously press the Program Selector Figure 10 C and SKIP button Figure 10 G for at least 2 seconds The...

Page 20: ...nd summer winter switch The switch is closed if there is no ignition block 4 Check Z2 Hi Lo flame and fan speed switch Button down Minimum velocity Button up Maximum velocity TROUBLESHOOTING STEP 2 Po...

Page 21: ...wirings and connections If they are OK replace the thermostat STEP 4 8 Check Z9 Room thermostat Close the thermostat by a clockwise rotation 9 Check M1 Overheat thermostat automatic reset The thermos...

Page 22: ...e the transformer Point 14 EV1 Valve closed during ignition Z2 down Check wirings connections and voltage If everything is OK replace the gas valve Point 15 RP7 No spark during ignition Check electrod...

Page 23: ...inter Switch Part Number P332571 Z8 Z3 Timer and Manual Program Mode Switch Part Number P332570 Z2 Hi Lo Flame and Fan Speed Switch Part Number P332569 SF SB Green and Red Lamps Part Number P332538 P3...

Page 24: ...ion Blower Motor Part Number P332514 M1 Overheat Thermostat Part Number P332522 M2 Fan Thermostat Part Number P332496 Fan Blades 4 pieces Part Number P332572 Left P332638 Right M Fan Motor 2 Pieces Pa...