background image

50

SERVICING

VOLT / OHM
    METER

G

N

D

   RED
 RESET
BUTTON

     COLOR
IDENTIFYING
        TAB

Checking Flame Rollout Switch

a. If no voltage is measured on either side of control it

indicates ignition control or wiring to control prob-
lem.

b. If voltage is measured on one side of the control and

not the other it indicates the control is open.

c. If voltage is measured on both sides of the control

the wiring to gas valve or valve is at fault.

3. After check and/or replacement of rollout switch, rein-

stall burner compartment door and verify proper unit op-
eration.

S-303  INDUCED DRAFT BLOWER MOTOR

WARNING

HIGH

 

VOLTAGE

D

ISCONNECT 

ALL

 POWER BEFORE SERVICING OR

INSTALLING THIS UNIT. 

M

ULTIPLE POWER SOURCES MAY

BE PRESENT. 

F

AILURE TO DO SO MAY CAUSE PROPERTY

DAMAGE, PERSONAL INJURY OR DEATH.

1.

Remove burner compartment door to gain access to
the induced draft blower motor.

2.

Disconnect the motor wire leads from its connection
point at the induced draft motor.

3.

Using a ohmmeter, test for continuity between each
of the motor leads.

4.

Touch one probe of the ohmmeter to the motor frame
(ground) and the other probe in turn to each lead.

If the windings do not test continuous or a reading is
obtained to ground, replace the motor.

5.   If the windings have a continuity reading, reconnect

wires.  Turn power on to the furnace and turn the
thermostat on in the heating mode.  Check voltage
for 115V at the induced draft motor terminals during
the trial for ignition.  If you have 115V and the motor
does not run, replace the induced draft motor.

6.

After completing check and/or replacement of in-
duced draft motor, reinstall burner compartment door.

7.

Turn on electrical power and verify proper unit opera-
tion.

S-304 CHECKING GAS VALVE (REDUNDANT)

A combination redundant operator type gas valve which pro-
vides all manual and automatic control functions required
for gas fired heating equipment is used.

The valve provides control of main burner gas flow, pressure
regulation, and 100 percent safety shut-off.

WARNING

D

ISCONNECT 

ALL

 POWER BEFORE SERVICING

Single stage gas valves should be tested on the furnace
with 24 VAC connected to the gas valve and manometers
reading supply line and manifold pressures.

S-305   CHECKING MAIN BURNERS

The main burners are used to provide complete combustion
of various fuels in a limited space, and transfer this heat of
the burning process to the heat exchanger.

Proper ignition, combustion, and extinction are primarily
due to burner design, orifice sizing, gas pressure, primary
and secondary air, vent and proper seating of burners.

Burners have been redesigned for 34.5" chassis furnaces.
Overall length and width dimensions remain the same as
40" model burners. The burners used 34.5" models have
burner head insert with larger diameter center hole and a
larger number of surrounding holes.

.025  

.002

(CARRYOVER SLOT WIDTH)

±

16X
.125 x .030 MIN SLOT

12X Ø.125

Ø.562

Beckett Burner

WARNING

D

ISCONNECT 

ALL

 

G

AS AND 

E

LECTRICAL 

P

OWER 

S

UPPLY.

In checking main burners, look for signs of rust, oversized
and undersized carry over ports restricted with foreign ma-
terial, etc, refer to previous drawing.  Burner cross-over slots
should not be altered in size.

S-306   CHECKING ORIFICES

Single stage furnaces are factory equipped with #45 gas
orifices.

Summary of Contents for ACSS9 Series

Page 1: ...ility for property damage or personal injury due to improper service procedures or services performed by an unqualified person The material in this manual does not supercede manufacturer s installatio...

Page 2: ...TIBLE MATERIALS OR USE GASOLINE OR OTHER FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE TABLE OF CONTENTS WARNING HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS U...

Page 3: ...4729 U S only email us at customerservice goodmanmfg com fax us at 731 856 1821 Not a technical assistance line for dealers CONSUMERINFORMATIONLINE AMANA BRAND PRODUCTS TOLL FREE 1 877 254 4729 U S on...

Page 4: ...mo da o cerebral permanente muerte Las emisiones de mon xido de carbono pueden circular a trav s del aparato cuando se opera en cualquier modo B10259 216 RISQUE D EMPOISONNEMENT AUMONOXYDE DE CARBONE...

Page 5: ...s equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand B BEFORE OPERATING smell all around the appliance area for gas Be sure to smell next to...

Page 6: ...not use this appliance if any part has been underwater or explosion technician Force or attempted repair may result in a fire hand don t try to repair it call a qualified service Never use tools If th...

Page 7: ...ncer birth defects or other reproductive harm are known to the This product contains fiberglass insulation State of California to product could expose California to cause known by the State of contain...

Page 8: ...l Release B 1st Revision Configuration M Upflow Horizontal Major Revision C Downflow Horizontal A Initial Release K Dedicated Upflow B 1st Revision D Dedicated Downflow Nox Airflow N Natural Gas C Var...

Page 9: ...entry The furnace also features an aluminized steel tubular heat exchanger Available cabinet widths are 17 5 and 21 wide GMSS96 GMSS960402BNAA GMSS960603BNAA GMSS960803BNAA GMSS960804CNAA GMSS960805CN...

Page 10: ...pipe entry The furnace also features a stainless steel tubular heat exchanger Available cabinet widths are 17 5 and 21 wide AMSS96 AMSS960402BNAA AMSS960603BNAA AMSS960803BNAA AMSS960804CNAA AMSS96080...

Page 11: ...n Durable powder coat paint finish resists corrosion CFSB17 CFSB21 CFSB24 N A Counterflow Subbase Kit For use with 34 5 down flow furnace models These kits are available for the following furnace widt...

Page 12: ...s NOT intended for use with single pipe indirect vent installations 0170K00001S N A Side Wall Only Concentric Vent Kit This kit is to be used with 2 vent systems The vent kit must terminate outside th...

Page 13: ...n any old or new controls to their containers before touching any ungrounded object Product Application This product is designed for use as a residential home gas furnace It is not designed or certifi...

Page 14: ...is manual or the instal lation instructions to determine if the piping system from furnace to termination can be accomplished within the guidelines given NOTE The length of flue and or combustion air...

Page 15: ...y this ventilation re quirement FurnaceSuspension If suspending the furnace from rafters or joist use 3 8 threaded rod and 2 x2 x1 8 angle iron as shown in the fol lowing figure If the furnace is inst...

Page 16: ...ustion air require ments for the appliances Most homes will require outside air be supplied to the fur nace area by means of ventilation grilles or ducts connect ing directly to the outdoors or spaces...

Page 17: ...minimum free area of 2 in 2 1000 Btu hr 4400 mm2 kW of total input rating of all appliances 9 3 3 Outdoor Combustion Air Outdoor combustion air shall be pro vided through opening s to the outdoors in...

Page 18: ...lations Engineered combustion air installa tions shall provide an adequate supply of combustion ventilation and dilution air and shall be approved by the authority having jurisdiction 9 3 6 Mechanical...

Page 19: ...to Condensate Drain Trap and Lines section in this manual or the installation instructions for further details If the drain trap and drain line will be exposed to temperatures near or below freezing a...

Page 20: ...gas at standard altitude Propane gas installations re quire an orifice change to compensate for the energy con tent difference between natural and propane gas High altitude installations may require...

Page 21: ...ion of a direct vent application must terminate at least 12 inches from any opening through which flue gases may enter a building door window or gravity air inlet The vent termination of vent pipe run...

Page 22: ...or 3 diameter pipe can be used in place of 2 diameter pipe 5 Increased Clearance Configurations using 2 45 deg Long Sweep elbows should be considered equivalent to one 90 deg elbow 6 One 90 elbow shou...

Page 23: ...orizontalVentTermination DualPipe 90 ELBOWS 12 MIN ABOVE HIGHEST ANTICIPATED SNOW LEVEL 3 24 BETWEEN PIPES Combustion Air Intake may also be snorkeled to obtain 12 min ground clearance AlternateVentTe...

Page 24: ...y relief equipment These distances apply ONLY to U S Installations 5 The vent termination shall be located at least 3 above any forced air inlet located within 10 and at least 10 from a combustion air...

Page 25: ...recau tions must be taken to prevent condensate from freezing within the drain line If an air conditioning coil is installed with the furnace a common drain may be used An open tee must be installed i...

Page 26: ...rated the appropriate orifice size must be determined based upon the BTU ft3 content of the derated gas and the altitude Refer to the National Fuel Gas Code NFPA 54 ANSI Z223 1 and information pro vid...

Page 27: ...s WARNING TO AVOID THE POSSIBLITY OF EXPLOSION OR FIRE NEVER USE A MATCH OR OPEN FLAME TO TEST FOR LEAKS Check for leaks using an approved chloride free soap and water solution an electronic combustib...

Page 28: ...1 100 1 800 720 1 500 Pipe or Tubing Le ngth Fe et Tubing S ize O D Type L Nomina l Pipe S ize S c hedule 40 Sizing BetweenFirst and SecondStage Regulator Maximum Propane Capacities listed are based o...

Page 29: ...de inside the furnace junctionbox Theintegratedcontrolmodulesingle humidifierterminal HUM is energizedwith115voltswhenevertheinduceddraftbloweris energized This terminal can also be used to provide 11...

Page 30: ...s or other means used to control the flow of air must be adequate to prevent chilled air from entering the furnace and if manually operated must be equipped with means to prevent operation of either u...

Page 31: ...ed Gas will only continue to flow if a flame signal is present 7 Circulator blower is energized on heat speed following a fixed thirty 30 second blower on delay 8 Furnace runs integrated control modul...

Page 32: ...into a 1 hour lockout The control will automatically reset from lock out and restart the ignition sequence The diagnostic light code for this problem is three short flashes fol lowed by a pause The pr...

Page 33: ...on both sides 3 Make sure burners are clean not out of position and line up correctly with exchanger tubes including the heat exchanger orifice plate between the burners and the heat exchanger tubes m...

Page 34: ...sult the Installation Instructions IO 635 SIDEWALLVENTKIT 0170K00001S This side wall only vent kit 0170K00001S is to be used with 2 vent systems This kit is NOT intended for use with single pipe indi...

Page 35: ...Installation The CVENT 2 DCVK 20 2 or the CVENT 3 DCVK 30 3 is a concentric vent kit approved with furnaces listed in this manual This concentric vent kit allows for vertical or horizontal vent termi...

Page 36: ...Wall Flush Mount Vent Kit 2 Concentric Side Wall Flush Mount Vent Kit 3 Concentric Vent Kit 2 Concentric Vent Kit 3 Propane Gas Conversion Kit Down Flow Base Down Flow Base Down Flow Base LP Low Pres...

Page 37: ...t 2 Concentric Side Wall Flush Mount Vent Kit 3 Concentric Vent Kit 2 Concentric Vent Kit 3 Propane Gas Conversion Kit Down Flow Base Down Flow Base Down Flow Base LP Low Pressure Shut Off Kit Dual Fu...

Page 38: ...4 K1 OT NO Y P2 9 CALL FOR 2ND STAGE COMPRESSOR Y2 1 0K G FURN P2 1 C OT C C SECOND STAGE COMPRESSOR OUTPUT G CALL FOR EMERGENCY HEAT W1 FURN W2 HP F1 3A OT NC 24VAC 2ND STAGE COMPRESSOR DEMAND OUTPU...

Page 39: ...201 CHECKING TEMPERATURE RISE 47 S 300 CHECKING PRIMARY LIMIT CONTROL 48 S 302 CHECKING FLAME ROLLOUT CONTROL 49 S 303 INDUCED DRAFT BLOWER MOTOR 50 S 304 CHECKING GAS VALVE REDUNDANT 50 S 305 CHECKIN...

Page 40: ...OHM METER VOLT OHM METER These then should be wired to the furnace accordingly Some transformers will display phasing symbols as shown CHECKING FOR PHASING PRIMARY TO SECONDARY OF UNMARKED TRANSFORMER...

Page 41: ...9 947 45 20 40 80 160 400 20 45 90 180 360 900 46 78 157 391 21 43 86 171 343 857 47 19 38 76 153 383 22 41 82 164 327 818 48 75 150 375 23 39 78 157 313 783 49 147 367 24 37 75 150 300 750 50 18 36 7...

Page 42: ...aulty Ignition Control Test Control S 313 Gas Valve or Gas Supply Shut Off Turn Valves to On Position S 317 Faulty Induced Draft Blower Test Induced Draft Motor S 303 Faulty Blower Motor PSC Test Blow...

Page 43: ...itch circuit Inspect pressure switch hose Repair if necessary Inspect flue and or inlet air piping for blockage proper length elbows and termination Check drain system Correct as necessary Correct pre...

Page 44: ...7 Flame sensor is coated oxidized Flame sensor incorrectly positioned in burner flame Lazy burner flame due to improper gas pressure or combustion air Induced draft blower and circulation blower runs...

Page 45: ...k insulation of the same gauge or its equivalent CHECKING THERMOSTAT WIRING AND ANTICIPATOR S 3A THERMOSTAT AND WIRING DISCONNECT ALL POWER BEFORE SERVICING WARNING 1 Remove the blower compartment doo...

Page 46: ...ransformer is inoperative Replace 7 After completing check and or replacement of trans former and check and or repair of control circuit rein stall blower compartment door 8 Turn on electrical power a...

Page 47: ...uct Posi tive Pressure 3 Add the two 2 readings together for total external static pressure NOTE Both readings may be taken simultaneously and read directly on the manometer if so desired If an air co...

Page 48: ...L Primary limit controls are nonadjustable automatic reset bi metal type limit control Refer to the following drawing for the location of the primary limit 2 PRIMARY LIMIT CONTROL Primary Limit Contro...

Page 49: ...n furnace Technical Manual for color codes and temperature settings S 302 CHECKING FLAME ROLLOUT CONTROL A temperature activated manual reset control is mounted to the manifold assembly on 90 furnaces...

Page 50: ...6 After completing check and or replacement of in duced draft motor reinstall burner compartment door 7 Turn on electrical power and verify proper unit opera tion S 304 CHECKING GAS VALVE REDUNDANT A...

Page 51: ...mea sured at the gas valve inlet pressure tap or at a hose fitting installed in the gas piping drip leg The supply pressure must be measured with the burners operating To measure the gas supply press...

Page 52: ...age valve outlet pressure tap connections LINE VOLTAGE NOW PRESENT WARNING 3 Turn ON the gas and electrical power supply and oper ate the furnace 4 Measure gas manifold pressure with burners firing Ad...

Page 53: ...e Gas S 308 CHECKING HOT SURFACE IGNITOR Single stage furnaces use a 115 volt silicon carbide igniter p n 0130F00008 with 17 second warm up time DISCONNECT ALL POWER BEFORE SERVICING WARNING 1 Remove...

Page 54: ...rry over lighter tube or cross lighter obstructed clean 4 Main burner orifice s deformed or out of alignment to burner replace S 313 CHECKING INTEGRATED IGNITION CONTROL BOARDS NOTE Failure to earth g...

Page 55: ...ARNING HIGH VOLTAGE DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH 1 Connect a...

Page 56: ...LOSS OF EFFICIENCY EQUIPMENT DAMAMGE AND POSSIBLE FIRE WARNING Filters must be used with this furnace Filters do not ship with these furnaces but must be provided by the installer for proper furnace o...

Page 57: ...ser vice shop 1 Dial type thermometers or thermocouple meter op tional to measure dry bulb temperature 2 Amprobe to measure amperage and voltage 3 Volt Ohm Meter testing continuity capacitors and mot...

Page 58: ...meter clocking will be virtually impossible The gas orifices used with propane are calculated for 2500 BTU per cubic foot gas and with proper inlet pressures and correct piping size full capacity wil...

Page 59: ...CLASS 2 WIRE GR GND 115 VAC 24 VAC BLOWER COMPARTMENT DOOR SWITCH OPEN WHEN DOOR OPEN DOOR SWITCH WARNING DISCONNECT POWER BEFORE SERVICING WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED BK GN...

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