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55

F

LAME

 S

ENSOR

 (Q

UALIFIED

 S

ERVICER

 O

NLY

)

Under some conditions, the fuel or air supply can create a nearly
invisible coating on the flame sensor.  This coating acts as an
insulator causing a drop in the flame sense signal.  If the flame
sense signal drops too low the furnace will not sense flame and
will lock out.  The flame sensor should be carefully cleaned by a
qualified servicer using emery cloth or steel wool.  Following
cleaning, the flame sense signal should be as indicated in the
Specifications Sheet.

B

EFORE

 L

EAVING

 

AN

 I

NSTALLATION

Cycle the furnace with the thermostat at least three
times.  Verify cooling and fan only operation.

Review the Owner’s Manual with the homeowner and
discuss proper furnace operation and maintenance.

Leave literature packet near furnace.

R

EPAIR

 

AND

 R

EPLACEMENT

 P

ARTS

When ordering any of the listed functional parts, be
sure to provide the furnace model, manufacturing, and
serial numbers with the order.

Although only functional parts are shown in the parts
list, all sheet metal parts, doors, etc. may be ordered
by description.

Parts are available from your distributor.

Functional Parts List-

Gas Valve

Blower Motor

Gas Manifold

Blower Wheel

Natural Gas Orifice

Blower Mounting Bracket

Propane Gas Orifice

Blower Cutoff

Igniter

Blower Housing

Flame Sensor

Inductor

Rollout Limit Switch

Heat Exchanger with

Primary Limit Switch

Recuperator Coil

Auxiliary Limit Switch

Coil Front Cover

Pressure Switch

Integrated Control Module

Induced Draft Blower

Transformer

Door Switch

Summary of Contents for CVM97 Series

Page 1: ...precautions listed in this Installation Manual are intended as supplemental to existing practices However if there is a direct conflict between existing practices and the content of this manual the p...

Page 2: ...tat Wiring 29 Single Stage Heating Thermostat Application 30 24 Volt Dehumidistat Wiring 30 Fossil Fuel Applications 30 Line Voltage Accessories Electronic Air Cleaner and Humidifier 30 24 Volt Humidi...

Page 3: ...d 51 Primary Limit 51 Auxiliary Limit 51 Rollout Limit 51 Fan Only Mode 51 Operational Checks 51 Safety Circuit Description 51 Furnace Control Board 51 Primary Limit 51 Auxiliary Limit 51 Rollout Limi...

Page 4: ...ER OPERATION OR DAMAGE TO EQUIPMENT IF THE FURNACE ENVIRONMENT HAS THE POTENTIAL OF FREEZING THE DRAIN TRAP AND DRAIN LINE MUST BE PROTECTED THE USE OF ACCESSORY DRAIN TRAP HEATERS ELECTRIC HEAT TAPE...

Page 5: ...rebral 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 AU MONOXYDE DE CARBONE Le monoxy...

Page 6: ...cts The CTK family of thermostat kits allow this furnace to be installed as part of a digitally communicating system The ComfortNet system provides advanced airflow configuration enhanced setup featur...

Page 7: ...ce doors must be in place on the furnace while the furnace is operating in any mode Damage or repairs due to failure to comply with these requirements is not covered under the warranty NOTE The Common...

Page 8: ...s between 55 F and 100 F when the furnace is heating Provide provisions for venting combustion products outdoors through a proper venting system Special consideration should be given to vent flue pipe...

Page 9: ...loor by using a silicone rubber caulking compound or cement grout Counterflow Installation over a combustible floor If installation over a combustible floor becomes necessary use an accessory subbase...

Page 10: ...e above tests the venting system must be corrected in accor dance with the National Fuel Gas Code ANSI Z223 1 NFPA 54 and or National Gas and Propane Installation Code CSA B149 1 15 9 After it has bee...

Page 11: ...r air shall be determined in accordance with the method in 9 3 2 1 or 9 3 2 2 except that where the air infiltration rate is known to be less than 0 40 ACH the method in 9 3 2 2 shall be used The tota...

Page 12: ...mmunicating with the outdoors through horizontal ducts each opening shall have a minimum free area of 1 in 2 2000 Btu hr 1100 min2 kW of total input rating of all appliances in the enclosure See Figur...

Page 13: ...hall be interlocked with the appliance so they are proven in the full open position prior to main burner ignition and during main burner operation Means shall be provided to pre ventthemainburnerformi...

Page 14: ...tall on top collector box port 3 Locate 24 x 1 4 tube in bag assembly 4 Install one end on front cover pressure switch 5 Route tube to lower port on collector box cover and cut off excess tubing DRAIN...

Page 15: ...N THIS SECTION WARNING UPON COMPLETION OF THE FURNACE INSTALLATION CAREFULLY INSPECT THE ENTIRE FLUE SYSTEM BOTH INSIDE AND OUTSIDE OF THE FURNACE TO ASSURE IT IS PROPERLY SEALED LEAKS IN THE FLUE SYS...

Page 16: ...S Schedule 40 pipe must meet ASTM D1527 and if used in Canada must be CSA listed or two or three inch cellular core ABS Schedule 40 pipe must meet ASTM F628 and if used in Canada must be CSA listed So...

Page 17: ...The combustion air intake termination of a direct vent application should not terminate in an area which is frequentlydustyordirty NOTE In Canada the current edition of CAN CSA B149 1 15 takes precede...

Page 18: ...echanical air supply inlet to building or the combustion air inlet to any other appliance 6 in 15 cm for appliances 10 000 Btuh 3 kW 12 in 30 cm for appliances 10 000 Btuh 3kW and 100 000 Btuh 30 kW 3...

Page 19: ...eunit The counterflow rubber coupling allows service removal of air intake piping internal to the furnace blower compartment The com bustion air intake pipe can also be secured directly to the counter...

Page 20: ...nge from cabinet 2 Insert cabinet plug in unused combustion air hole 3 Drill a pilot hole at the cabinet dimple size dictated by knockout tool used 4 Use a knockout tool to create a 3 diameter hole 5...

Page 21: ...minate vertically as through a roof or horizontally as through an outside wall Vertical vent flue pipe terminations should be as shown in the following figure Refer to Vent Flue Pipe and Combustion Ai...

Page 22: ...Snow Level Dual Pipe Figure 18 90 ELBOWS 12 MIN ABOVE HIGHESTANTICIPATED SNOW LEVEL 3 24 BETWEEN PIPES VENT INTAKE TERMINATIONS FOR INSTALLATION OF MULTIPLE DIRECT VENT FURNACES If more than one direc...

Page 23: ...t trap the drain line in any other location than at the drain trap supplied with the furnace If the drain line is routed through an area which may see temperatures near or below freezing precautions m...

Page 24: ...self tapping screws see Figure 23 2 Locate the long drain hose 3 and cut at line A 3 Install large end of hose 3 to trap outlet and secure with 1 25 clamp 4 Install smaller end of hose 3 on 45 elbow...

Page 25: ...from the blower deck 4 Remove the two plugs from the left side of the cabinet and install them in the blower deck 5 Draining the Vent Elbow Locate hose 6 Measuring from the non grommet end cut off an...

Page 26: ...collector box and secure with a silver clamp 10 Use two silver clamps and secure the hoses to drain trap The trap outlet faces the front of the furnace Secure the trap to the cabinet using two screws...

Page 27: ...side of cabinet 3 Draining the Collector Box From outside the cabinet insert the non grommet end hose 7 into the back drain hole and secure to collector box drain port using a silver clamp 4 Draining...

Page 28: ...poses Refer to the wiring diagram for wire routings If any of the original wire as supplied with the furnace must be replaced it must be re placed with wiring material having a temperature rating of a...

Page 29: ...opened for ser vicing Do not defeat this switch 24 VOLT THERMOSTAT WIRING WIRE ROUTING MUST NOT INTERFERE WITH CIRCULATOR BLOWER OPERATION FILTER REMOVAL OR ROUTINE MAINTENANCE A REMOVABLE PLUG CONNE...

Page 30: ...e heating stage may be used to control this furnace To use a single stage thermostat turn off power to the fur nace move the thermostat selection DIP switch to the OFF position Turn power back on Refe...

Page 31: ...idifier may be connected between one of the HUM contacts and NEUTRAL The other HUM contact must be fed from the L1 terminal All field wiring must conform to applicable codes Connections should be made...

Page 32: ...E OF NATURAL PROPANE GAS PIPING NEEDED WHEN RUNNING PIPE FROM THE METER TANK TO THE FURNACE WARNING Thegaspipingsupplyingthefurnacemustbeproperlysizedbased on the gas flow required specific gravity of...

Page 33: ...national codes US National Fuel Gas Code NFGC NFPA 54 2012 ANSI Z223 1 2012 and the Installation Standards Warm Air Heating and Air Conditioning Systems ANSI NFPA 90B In Canada CANADA National Standar...

Page 34: ...s Line Hole Ground Joint Pipe Union Ground Joint Pipe Union NOTE Union may be inside furnace cabinet where allowed by local codes COUNTERFLOW Figure 37 Manual Shut Off Valve upstream from ground joint...

Page 35: ...S DETECTING WARNING DEVICE IN CASE OF A GAS LEAK SINCE PROPANE GAS IS HEAVIER THAN AIR ANY LEAKING GAS CAN SETTLE IN ANY LOW AREAS OR CONFINED SPACES PROPANE GAS ODORANT MAY FADE MAKING THE GAS UNDETE...

Page 36: ...h can cause excessive temperature rise This can cause limit switch tripping and heat exchanger fail ure To determine total external duct static pressure proceed as follows 1 With clean filters in the...

Page 37: ...st be provided sized and installed externally by the installer Filters must comply with UL900 or CAN ULCS111 standards Damage or repairs due to the installa tion of the furnace without filters are not...

Page 38: ...11 5 AM11 5RA AM11 5PP Family Family Family On upflow units guide dimples locate the side return cutout locations Use a straight edge to scribe lines connecting the dimples Cut out the opening on thes...

Page 39: ...ng rate to 35 low fire rate After 2 minutes the furnace control board increases the firing rate to 57 at a rate of 1 per second After 10 total minutes the furnace control board increases the firing ra...

Page 40: ...ompatible with a CTK01 communicating thermostat When a call for heat is sent the furnace will go through the Light Off Sequence at which time the Heat Current Demand Status will still show 0 After the...

Page 41: ...gas valve manual control to the ON position 8 Replace the burner compartment door 9 Open the manual gas shutoff valve external to the furnace 10 Turn on the electrical power to the furnace 11 Adjust...

Page 42: ...OFF any unnecessary gas appliances stated in step 3 Gas Line Gas Shutoff Valve Gas Line To Furnace Drip Leg Cap With Fitting Manometer Hose Manometer Open To Atmosphere Measuring Inlet Gas Pressure A...

Page 43: ...uring the smallest quantity usually the dial that indicates 1 2 cu ft per revolution You will use this number to calculate the quantity of gas in cubic ft if the furnace would consume if it ran steadi...

Page 44: ...is 1225 CFM The display indicates 12 If the airflow being delivered is 1275 the display indicates 13 1 Determine the tonnage of the cooling system installed with the furnace If the cooling capacity is...

Page 45: ...peed circulator blower also offers several custom ON OFF ramping profiles for cooling These profiles may be used to enhance cooling performance and increase comfort level The ramping profiles are sele...

Page 46: ...th The thermostat still sends commands to the indoor and outdoor units How ever the thermostat may also request and receive informa tion from both the indoor and outdoor units This information may be...

Page 47: ...ring will consist of four wires be tween the indoor unit and outdoor unit and between the in door unit and thermostat The required wires are a data lines 1 and 2 b thermostat R 24 VAC hot and C 24 VAC...

Page 48: ...econds ON ON 1 Stage Stat OFF 2 Stage Stat ON 1 Stage Compressor OFF 2 Stage Compressor ON Disabled OFF Enabled ON Disabled OFF Enabled ON Disabled OFF Enabled ON Disabled OFF Enabled ON Not applicabl...

Page 49: ...cluded in CTK01 kit 208 230 VAC 24 VAC 1 2 R C System Wiring using Two Wires between Furnace and AC HP and Four Wires between Furnace and Thermostat 1 2 R C C Y ComfortNet Compatible Furnace Integrate...

Page 50: ...om most recent to least recent A Maximum of 3 consecutive faults of the same type will be logged Each error is displayed for 2 seconds with a blank screen for 1 second in between When all errors have...

Page 51: ...or are energized to their appropriate speed Circulator blower is energized on the appropriate cool speed at the level and time determined by the selected ramping profile Electronic air cleaner termina...

Page 52: ...or 100 DIP switch selectable when using a conventional thermostat Electronic air cleaner terminal is energized The furnace control board HUM dry contacts close Circulator blower runs integrated contr...

Page 53: ...ls held in a person s hand during grounding will be discharged 3 Service integrated control module or connecting wiring following the discharge process in step 2 Use caution not to recharge your body...

Page 54: ...n the installation differing filter arrangements can be applied Filters can be installed in either the central return register or a side panel external filter rack upflow only Ame dia air filter or el...

Page 55: ...r s Manual with the homeowner and discuss proper furnace operation and maintenance Leave literature packet near furnace REPAIR AND REPLACEMENT PARTS When ordering any of the listed functional parts be...

Page 56: ...stage pressure switch circuit is closed at start of heating cycle PS1 CLOSED E1 Low stage pressure switch contacts sticking Shorts in pressure switch circuit wiring Replace low stage pressure switch...

Page 57: ...ace o peratio n Integrated co ntro l m o dule LED display pro vides E 5 erro r co de Co mfo rtNet thermo stat displays B attery P o wer E5 Open Fuse No t Displayed No t Displaye d Sho rt in lo w vo lt...

Page 58: ...t thermostat Call for Service icon illuminated ComfortNet thermostat scrolls Check Furnace message EA Polarity of 1 1 5 volt AC is reversed REVERSED PLTY EA Polarity of 1 1 5 volt AC power to furnace...

Page 59: ...a set in integrated control module Verify circulator blower motor horse power is the same specified for the specific furnace model Replace if necessary Verify shared data set is correct for the specif...

Page 60: ...ct Description and Location Requirements Considerations for furnace installation requirements Turn power OFF prior to repair Furnace fails to operate Integrated control module LED display provides b7...

Page 61: ...MORY CARD DATA dF DEFROST DEMAND E0 LOCKOUT DUE TO EXCESSIVE RETRIES OR RECYCLES E1 LOW STAGE PRESSURE SWITCH STUCK CLOSED AT START OF HEATING CYCLE E2 LOW STAGE PRESSURE SWITCH STUCK OPEN E3 OPEN HIG...

Page 62: ...NG TO UNIT MUST BE TO UNIT MUST BE PROPERLY POLARIZED EQUIPMENT GND FIELD SPLICE SWITCH TEMP SWITCH PRESSURE PROT DEVICE LOW VOLTAGE FIELD LOW VOLTAGE 24V HI VOLTAGE 115V HI VOLTAGE FIELD INTERNAL TO...

Page 63: ...e no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS 4 INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment...

Page 64: ...ompany L P 5151 San Felipe Suite 500 Houston TX 77056 www goodmanmfg com www amana hac com NOTE SPECIFICATIONS AND PERFORMANCE DATA LISTED HEREIN ARE SUBJECT TO CHANGE WITHOUT NOTICE 2014 2016 Goodman...

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