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Pub. No. 32-5022-10

Page 7

To light furnace.

will open and burners will ignite.

8. When thermostat is satisfied, main burners will extinguish.

9. If main burners fail to ignite, lower thermostat setting or
disconnect electrical supply, wait  5 minutes, raise thermostat
setting above indicated temperature.

10. If furnace will not light, turn “OFF” all gas and electricity to
unit and call servicer or gas supplier.

For complete shutdown.

Turn gas cock knob on main gas valve to “OFF” position. Discon-
nect electrical supply to unit.

CAUTION: If this is done during the cold weather months,
provisions must be taken to prevent freeze-up of all water pipes
and water receptacles.

Whenever your house is to be vacant, arrange to have someone
inspect your house for proper temperature. If your furnace
should fail to operate, damage could result, such as frozen water
pipes.

Flame Roll-out Device.

All models are equipped with a fusible link located near the
burners. In case of flame roll-out, the link will open (melt) and
cause the circuit to open which shuts off all flow of gas.

TOP VIEW OF LEFT SIDE PIPING

AUTOMATIC GAS VALVE

WITH SHUTOFF

DOWNFLOW FURNACE Manual Main Gas Shut-off Valve May Be Located on the Right or Left Side

Lighting instructions.

Your furnace is equipped with a hot surface direct ignition
device.

WARNING.
Do not attempt to manually light the furnace.

1. Please read all safety information in this book before operating
furnace.

2. Set thermostat to lowest setting. Turn off all electric power to
furnace.

3. Remove control access panel.

4. Turn gas cock knob on main gas valve with unit clockwise to
“OFF” position. If external gas cock is used, turn to “OFF”
position. Allow 5 minutes for any gas within the unit to escape.
LP gas being heavier than air may require forced ventilation. If
you smell gas STOP! Follow the “What To Do If You Smell Gas”
instructions on the front cover of this book. If you don’t smell gas,
go to next step.

5. Turn gas cock knob counterclockwise to “ON” marker.

6. Replace control access panel.

7. Turn on main electrical supply and set thermostat to desired
setting. Combustion blower will start and ignition device will
start to heat up. After approximately 15 seconds main gas valve

NOTE THE LOCATION OF THE MANUAL MAIN GAS SHUTOFF VALVE FOR YOUR FURNACE.

Have your installer or servicer show you the location if you have any questions.

Your Gas Valve Shutoff May Be

MANUAL OR ELECTRIC SWITCH

GROUND
UNION
JOINT

AUTOMATIC GAS VALVE WITH SHUTOFF

MAIN
MANUAL
SHUTOFF
VALVE

DRIP
LEG

Switch Toggles
"ON" or "OFF"

Summary of Contents for *UY Series

Page 1: ...use by individuals pos sessing adequate backgrounds of electrical and mechani cal experience Any attempt to repair a central air condi tioning product may result in personal injury and or prop erty damage American Standard Inc or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use UnderstandthesignalwordsDANGER WARNING ...

Page 2: ...which are the same size as originally supplied How to remove your filter WARNING Disconnect power to unit before removing blower door Upflow furnaces use a high velocity type air filter which may be located within the furnace blower compartment in either a BOTTOM or SIDE left or right return air inlet The furnace may be secured with filter retaining brackets as shown or a filter retainer wire To r...

Page 3: ...d the method of changing the filters UPFLOW Vertical FILTER TABLES Downflow Horizontal furnaces are factory supplied with 2 stan dard size permanent type air filters which may be located remote to the furnace or in the return air duct Check with your dealer for the location of your filters A downflow horizontal furnace return air filter application as shown features two 14 x 20 x 1 filter in the 1...

Page 4: ...re power to blower and gas valve 7 Lockout 7 Turn power on off on off twice in 30 secs Insufficient Heating 1 Dirty air filters 1 Clean or replace filters Blower operates continuously 2 Blocked supply or 2 Make sure registers are open and return registers No obstacles blocking off the air No Heat Vent motor Restricted or plugged furnace 1 Remove drain clamps to condensate is running condensate dra...

Page 5: ... indicates that a service call is required For best operation burners must be cleaned annually using brushes and vacuum cleaner Turn off gas and electric power supply To clean burners remove top burner bracket and lift burner from orifice NOTE Be careful not to break igniter when removing burners Clean burners with brush and or vacuum cleaner Reassemble parts by reversal of the above procedure NOT...

Page 6: ... the casing of furnace must be kept free of obstructions which would restrict airflow thereby affecting efficiency and safe operation of your furnace Also air openings provided to the area in which the furnace is installed and the space around the furnace shall not be blocked or obstructed Keep this in mind should you choose to remodel theareawhichcontainsyourfurnace Furnacesmusthaveairfor proper ...

Page 7: ...off Valve May Be Located on the Right or Left Side Lighting instructions Your furnace is equipped with a hot surface direct ignition device WARNING Do not attempt to manually light the furnace 1 Please read all safety information in this book before operating furnace 2 Set thermostat to lowest setting Turn off all electric power to furnace 3 Remove control access panel 4 Turn gas cock knob on main...

Page 8: ...iginal installation of the furnace subject to proof of original purchase Warrantor WILL AT ITS OPTION provide either a heat exchanger including secondary heat exchanger without charge F O B nearest Parts Distribution point or allow a credit in the amount of the then current wholesale price of an equivalent heat exchanger toward the purchase price of a comparable heating unit Any local transportati...

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