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Two- Stage Multi Position Furnace

Service Manual

440 08 2002 02

ALWAYS CHECK CURRENT TECHENICAL SUPPORT MANUAL

Circulation Air Blower Data - *9MPV(A1 & A2)

Heating, Cooling & Continuous Airflow Settings

Figure 7

ESP

²²²²

W.C.

*9MPV100 COOLING

(CFM VS. EXTERNAL STATIC PRESSURE )

500

1000

1500

2000

2500

0.1

0.3

0.5

0.7

000

001

010

011

100

101

110

111

Figure 8

ESP

²²²²

W.C.

*9MPV100 Hi HEAT

(CFM VS. EXTERNAL STATIC PRESSURE )

0.1

0.2

0.3

0.5

0.7

000

001

010

011

100

101

110

111

500

1000

1500

2000

2500

Содержание 9MPT Series

Страница 1: ...TION 2 STAGE GAS FURNACES Part Number 440 08 2002 02 9MPT 9MPV A1 A2 Manufactured by This manual supports condensing gas furnaces manufactured in 2001 ã 2001 International Comfort Products Corporation USA 4 2002 ...

Страница 2: ...ed Venting 1 or 2 pipes 9MPV Dual Certified Venting 1 or 2 pipes Variable Speed ã 2001 International Comfort Products Corporation USA 1136 Heil Quaker Boulevard LaVergne TN 37086 All rights reserved throughout the World ...

Страница 3: ...LOWER 17 19 CONDENSATE DRAIN TRAP 17 20 HONEYWELL ST9162A FAN TIMER FURNACE CONTROL 18 21 ST9162A SV9541Q TESTING SEQUENCE 19 22 HONEYWELL SV9541Q 2 STAGE GAS VALVE IGNITION SYSTEM 19 23 HONEYWELL SV9541Q SYSTEM OPERATION 20 24 CHECKING FLAME CURRENT 22 25 CAPACITORS 22 26 BLOWER ASSEMBLY 22 27 BLOWER ROTATION 27 28 HEAT EXCHANGER REMOVAL REPLACEMENT 38 SV9541Q SMART VALVE Sequence of Operation 39...

Страница 4: ...dentify the unit you are servicing so you may be certain of a proper diagnosis and repair See Unit Identification Page 3 The information contained in this manual is intended for use by a qualified service technician who is familiar with the safety procedures required in installation and repair and who is equipped with the proper tools and test instruments Installation or repairs made by the unqual...

Страница 5: ...maintain the flow of flue products through the heat exchanger 2 The serpentine heat exchanger design does not lend itself well to the ribbon type or slotted port type burner found in more traditional design furnaces for the follow ing reasons A The secondary combustion airflows at right angles to the burner flame making it likely to pull the flame off a ribbon or slotted port type burner B The fla...

Страница 6: ...L FURNACES IS REQUIRED for safety reasons POLARITY CORRECT POLARITY of the line voltage supply to all fur naces is also REQUIRED for safety reasons CHECKING GROUNDING AND POLARITY Grounding may be verified as follows 1 Turn the power supply OFF 2 Using an Ohmmeter check for continuity between the Neutral white wire and Ground wire green of the supply circuit 3 With the Ohmmeter set on the R x 1 sc...

Страница 7: ...ked at the gas valve with ALL OTHER GAS FIRED APPLIANCES OPERATING Inlet Supply pressure to the furnace under these conditions MUST be a minimum of 4 5 W C Water Column If the inlet pressure is less it may be an indication of undersized piping or regulator problems L P GAS Inlet Supply pressure to the furnace should be checked in the same manner as for Natural Gas however with L P Gas the inlet pr...

Страница 8: ... 9 Reture fourth 4th DIP switch to previous setting 10 Replace the burner compartment door MANIFOLD PRESSURE AND ORIFICE SIZE FOR HIGH ALTITUDE APPLICATIONS Table 2 High Altitude Pressure Chart 2000 8000 ft Natural Gas H t V l Elevation Above Sea Level Heat Value Btu Cu Ft 0 1999 2000 2999 3000 3999 4000 4999 5000 5999 6000 6999 7000 7999 Btu Cu Ft High Low High Low High Low High Low High Low High...

Страница 9: ... to in sure continued safe reliable operation For example units must be de rated for altitude by adjusting manifold pres sure and or changing orifice size based upon the type of fuel I E Natural Gas or L P gas Btu content of the gas and installed altitude ALL UNITS must have a high altitude pressure switch installed at altitudes above 4 000 above sea level When servicing a unit installed at altitu...

Страница 10: ... Subtract the return air temperature from the supply air temperature The result is the temperature rise Compare with the allowable rise listed for the model size you are checking Temperature Rise can be checked by placing a thermometer in the return air duct within 6 of furnace Place a second ther mometer in the supply duct at lease two 2 ft away from the furnace This will prevent any false readin...

Страница 11: ...ing for the heat anticipator is to measure the actual current draw in the con trol circuit W using a low range 0 2 0 Amps Ammeter See Figure 10 After measuring the current draw simply set the heat anticipator to match that value Measuring Current Draw Figure 10 Ammeter W R Subbase Amps If a low range ammeter is not available a Clamp on type meter may be used as follows 1 Wrap EXACTLY ten 10 turns ...

Страница 12: ...g for both types of ther mostats Low voltage connections to furnace must be made on termi nal board to fan control The ELECTRONIC CONTROLS used on this series RE SPOND DIFFERENTLY to certain control wiring practices which have been generally accepted in the HVAC industry for many years For Example For years installers have run a wire from the Y terminal of the room thermostat and connected it di r...

Страница 13: ...nd the cause of the over temperaturemust be determined and corrected If however the switch is found to be opening prematurely then it should be replaced When replacing ANY limit switch use ONLY a switch of EXACTLY the same temperature set ting Use of a different temperature limit switch can create a dangerous situation Some of the main limit switches used in this series are SIMILAR IN APPEARANCE D...

Страница 14: ...Always check current Technical Support Manual for Part Nos Under normal operating conditions sufficient negative pres sure will be created to close the pressure switch and keep it closed to keep furnace operating Under abnormal condi tions however such as a restricted vent pipe or aleak inone of the heat exchangers sufficient negative pressure will not be created This will result in the switch fai...

Страница 15: ...mospheric zone Coupling on ends of exhaust pipe Total pipe coupling outside structure 8 Typical Vent Combustion Air Piping Installation Aluminum or non rusting shield recommended See Vent Termination Shielding for dimensions Increase minimum from 8 to 18 for cold climates sustained temperatures below 0 F DISCHARGE AIR 25 23 33 Inlet Pipe UPFLOW 8 Min 20 Max in same atmospheric zone Vent Pipes MUST...

Страница 16: ...ing ONLY 50 000 75 000 Btuh Furnaces 40 5 90 elbows with 2 PVC pipe 100 000 125 000 Btuh Furnace 40 5 90 elbows with 3 PVC pipe Elbows are DWV Long Radius Type for 2 and 3 vents If more than five elbows are required reduce the length of both the inlet and exhaust pipes 5 1 5m for each additional elbow used Feet of pipe is whichever pipe run is the longest either inlet or outlet side Figure 15 Stan...

Страница 17: ...Exhaust Air Termination with Exterior Risers Dimension A is touching or 2 maximum separation 12 Min Grade or Snow Level 18 Min for Cold Climates Sustained Below 0 F Inlet A A 12 Min Grade or Snow Level Exhaust 8 Min 20 Max Figure 21 Rooftop Inlet Vent and Exhaust Air Termination 25 22 43 18 Min for Cold Climates Sustained Below 0 F Inlet OVERHANG 12 MIN 12 MIN Ground Level OR Snow Level INLET EXHA...

Страница 18: ...or each additional elbow used 3 Elbows are DWV long radius type for 2 and 3 vents Concentric Vent Roof Installation Figure 23 Maintain 12 min clearance above highest anticipated snow level Max of 24 above roof Combustion Air Roof Boot Flashing Field Supplied Combustion Air Vent Vent Support Field Supplied 45 Elbow Field Supplied 25 22 02 Note Support must be field installed to secure termination k...

Страница 19: ...onstructed of 3 4 PVC or CPVC pipe The drain line must maintain a 1 4 per foot downward slope toward the drain DO NOT trap the drain line in any other location than at the condensate drain trap supplied with the furnace If possible DO NOT route the drain line where it may freeze The drain line must terminate at an inside drain to prevent freezing of the condensate and possible property damage 1 A ...

Страница 20: ...ST9162A control also provides an adjustable HEAT ING OFF delay for the circulating blower which can be field adjusted to 60 100 140 or 180 seconds Setting OFF and ON delays Setting The ST9162A Heating Fan ON OFF Delay is accomplished by the positioning of DIP switches The il lustrations Figure 28 Figure 29 indicate how to position these switches to obtain the desired setting The ST9162A Heating Fa...

Страница 21: ...operate on Two 2 power circuits received from the ST9162A Fan Timer Furnace Control One is the 24 volt power supply for the ignitor and to activate the ignition se quence The second is a 115 volt circuit used to power the combustion blower The SV9541Q system is not polarity sensitive The SV9541Q Ignition System Control working in conjunc tion with the ST9162A fan timer manages the Ignition Se quen...

Страница 22: ... Request single stage thermostat operation 4th DIP switch must be in off position see furnace wiring diagram 24 VAC signals applied to W1 terminal of EFT control Inducer motor turns on at high speed The high fire solenoid energizes Following a 3 second prepurge delay the pilot valve opens and the ignitor begins to warm up After the pilot lights the main burners energize and light burners now at hi...

Страница 23: ...off After 5 minute delay a new ignition sequence will be initiated Note SV9541Q On Off switch in off position during a call for heat will generate this diagnostic code 4 Flashes Limit switch string open 5 Flashes Flame sensed out of sequence Flame signal still present 6 Flashes 1 Note 1 Soft Lockout Maximum retry count exceeded failed to light within 4 trials for ignition 6 Flashes 2 Notes 1 2 Sof...

Страница 24: ...a capacitor analyzer one that indicated the capacitor s value in microfarads rather than with an Ohmmeter The reason for this is that an Ohmmeter test can only indicate if a capac itor is OPEN or SHORTED it cannot verify if its value mi crofarads is within an acceptable range Capacitor should test to within 10 of its rated value Capac itors testing outside this range should be replaced A weak capa...

Страница 25: ...cted that will provide proper temperature rise through the furnace See checking tem perature rise found on page 9 of this manual The re quired CFM for a particular temperature rise can also be calculated by using the following formula Output BTU Temp Rise X 1 08 CFM EXAMPLE Using a 75 Mbtu Non Condensing furnace equipped with P S C motor of this series with an output of 60 000 Btuh and a desired t...

Страница 26: ...mpressor failures reduced capacity freezing evapora tor coils etc System air flow should ALWAYS be verified upon comple tion of a new installation or BEFORE a change out heat exchanger replacement or in the case of a compressor failure to insure that the failure was not caused by improp er air flow Figure 34 Checking Static Pressure Supply Indoor Section Inclined Manometer Return CHECKING EXTERNAL...

Страница 27: ... will cause motor failure VARIABLE SPEED MODELS D C MOTOR The heating cooling and circulating blower speeds can be adjusted by changing the switch settings that are located on the side of the blower motor see Figure 36 Switches 1 and 2 adjust the circulating blower speed Switches 3 4 and 5 adjust the heating speeds Switches 6 7 and 8 adjust the cooling speed See the Technical Service Data Sheet fo...

Страница 28: ...ch Settings Furnace Model 1 2 50K 75K 100K 125K 0 0 540 540 700 703 0 1 660 660 860 821 1 0 780 780 1020 1000 1 1 900 900 1180 1160 Factory Setting Lo Heat Air Temperature Adjustment F Switch Settings Furnace Model 3 4 5 50K 75K 100K 125K 0 0 0 0 0 0 0 0 0 1 1 1 1 6 0 1 0 4 2 2 8 0 1 1 7 3 5 12 1 0 0 11 6 8 16 1 0 1 7 4 5 1 1 1 0 11 6 9 4 1 1 1 15 9 11 7 Factory setting Hi Heat Air Temperature Adj...

Страница 29: ...p can also be primed by pouring water into the vent drain side of the trap Remove the small plastic cap and clamps from the unused drain stub on the vent drain side of the condensate trap Connect a section of the 5 8 OD hose with a funnel to the drain stub and pour eight 8 ounces of wa ter into the trap Remove the hose and replace the plastic cap and clamp This will prime both the vent and the tra...

Страница 30: ...80 and secure with the four 4 screws Use caution to not over tighten the screws to pre vent stripping out of the plastic mounting holes For right side venting remove vent fitting assembly from combus tion blower Remove 90 elbow and rubber tubing from the vent fit ting by loosening the clamp on the vent fitting Securely attach vent fitting directly to combustion blower NOTE The vent fitting MUST be...

Страница 31: ... the furnace is placed horizontally on the left side If needed remove the hole plugs from the furnace side panel and relocate to the open set of holes in the opposite side panel Drill two 7 64 diameter holes in the casing using the condensate trap as the template Ensure that the vent fitting and the 90 elbow is securely attached to the combustion blower NOTE The vent fitting MUST be installed with...

Страница 32: ...t the vent fitting and the 90 elbow is securely attached to the combustion blower NOTE The vent fitting MUST be installed with the airflow marking arrow pointed toward the vent pipe with the drain stub at a 20 downward slope Plug the upper drain stub on the vent fitting with the rubber plug Use a blunt pointed screwdriver to push the plug into the stub Remove the pressure switch hose from the uppe...

Страница 33: ...ing directly to combustion blower This configuration allows right side venting from the furnace If the left side venting is required the combustion blower must be relo cated on the plastic transition box Remove the three 4 screws that secure the blower to the transition Rotate the blower 180 and se cure with the three 3 screws Use caution to not over tighten the screws to prevent stripping out of ...

Страница 34: ...ars on the drain stub through the hole in the casing and push the condensate trap into position Secure with the two screws Reconnect the drain hoses to the stubs on the vent fitting and the plastic transition and secure with the clamps Mount the condensate drain trap in a vertical position to either the left or right side of the furnace using the two screws and gasket that are provided If needed r...

Страница 35: ...om of the plastic transition box and secure with a 3 4 clamp Route the hose to the large drain stub on the condensate pump Cut off excess hose and discard Connect the hose to the drain stub on the condensate trap and secure with a 3 4 clamp Figure 44 Exhaust Inlet Supply Air Return Air RIGHT Side Venting Vent Drain Some Models have one pressure switch DRAIN SIDE VIEW 25 24 00 Preassemble and inser...

Страница 36: ...and gasket that are provided Note The condensate trap will belocated underthe furnacein aver tical position when the furnace is placed horizontally on the left side If needed remove the hole plugs from the furnace side panel and relocate to the open set of holes in the opposite side panel NOTE All gaskets and seals must be in place for sealed combus tion applications Remove the 90 street elbow and...

Страница 37: ...d Note The condensate trap will be located under the furnace in a vertical position when the furnace is placed horizontally on the right side If needed remove the hole plugs from the furnace side panel and relocated to the open set of holes in the opposite side panel NOTE All gaskets and seals must be in place for sealed combus tion applications Remove the 90 street elbow and vent fitting from the...

Страница 38: ...amps 3 4 Hose Clamps DRAIN SIDE VIEW Rotate downward 20 to 30 NOTE TRAP MUST BE PRIMED BEFORE OPERATION Preassemble insert into furnace Trap Connection Clamp ears Pointed OUT AIR FLOW Combustion Blower Mounting Screws 4 Downflow Installations Dual Certified 9MPT 9MPV A2 Models Downflow Installations Dual Certified 9MPT 9MPV Models See Figure 47 Note For easier installation of the drain hoses and c...

Страница 39: ... and clamps This configuration allows left side venting from the furnace If the right side venting is required the combustion blower must be relo cated on the plastic transition box Remove the four 4 screws that secure the blower to the transition Rotate the blower 180 and se cure with the four 4 screws Use caution to not over tighten the screws to prevent stripping out of the plastic mounting hol...

Страница 40: ... ones Primary Heat Exchanger 1 Turn OFF electrical power and gas supply to furnace 2 Disconnect vent pipe to furnace at flexible coupling 3 Disconnect combustion air inlet pipe at top panel if needed 4 Remove furnace top panel 5 Disconnect gas piping to furnace at gas valve Note Be fore performing next step insure that the wiring dia gram is available and readable or tag all wires first 6 Disconne...

Страница 41: ...AIT FOR PRESSURE SWITCHES TO OPEN 1 Ignitor turns OFF about 30 seconds into the trial for ignition If the pilot flame has not lit it turns back ON for the final 30 seconds of the 90 second trial for ignition The pilot valve is energized during the entire trial for ignition This is normal opera tion for the gas ignition system 2 If a W2 call for heat is present circulating fan on high speed Combust...

Страница 42: ...culating blower is energized heat speed Main limit switch Manual reset burner rollout switch Limit and rollout switch wiring is in good condition and se curely connected 5 Flashes Flame signal sensed out of proper sequence Combustion blower is energized Circulating blower is energized heat speed after the ON delay Flame at pilot burner 6 Flashes 1 Flash Soft Lockout Failed to light pilot during 90...

Страница 43: ...l reset and initiate a new ignition sequence Main limit switch Limit and rollout switch wiring is in good condition and se curely connected Restriction in duct work Dirty filter 7 Flashes Soft Lockout Blower failure typical Limit trip took longer than 2 minutes to reset System will start a new ignition sequence after 1 hour if call for heat still present Dead blower Blocked duct work 8 Flashes Hig...

Страница 44: ... a Fluke 79 digital multimeter or equivalent To achieve high fire energize the high fire solenoid the high pressure switch must be closed and the ST9162 fan board must turn on a transistor P1 pin 3 24 VAC 24 VAC Present when the door interlock switch is closed P1 pin 4 Line Voltage 115 VAC Present when the door interlock switch is closed P1 pin 5 Date Line Non periodic 1 2 wave rectified AC measur...

Страница 45: ...ine volt age potential C2 pin 2 HSI supply 24 VAC Present when the door interlock switch is closed C2 pin 3 Not connected 0 VAC Not connected C2 pin 4 Flame sense 80 VAC Present when the door interlock switch is closed C3 pin 1 Inducer supply 115 VAC Present when the inducer draft blower motor is on Heat modes Open Limit mode C3 pin 2 L1 115 VAC Present when the door interlock switch is closed C3 ...

Страница 46: ... Volts 2 140 4 370 2 140 4 370 3 140 4 370 3 140 4 370 Blower Transition Box Hi Fire Std Pressures of WC 5 No Elbows 40 5 90 DWV Elbows Blower Transition Box Lo Fire Std Pressures of WC 5 No Elbows 40 5 90 DWV Elbows 1 80 2 60 1 30 2 30 1 20 1 90 1 00 1 80 1 80 2 60 1 30 2 30 1 20 1 90 1 00 1 80 1 80 2 60 1 70 2 50 1 20 1 90 1 00 1 80 1 80 2 60 1 70 2 50 1 30 2 30 1 20 2 20 Limits Controls Rollout...

Страница 47: ...om factory setting 0 20 static on high heat Lo Heat Air Temperature Adjustment F Switch Settings Furnace Model 3 4 5 50K 75K 100K 125K 0 0 0 0 0 0 0 0 0 1 1 1 1 6 0 1 0 4 2 2 8 0 1 1 7 3 5 12 1 0 0 11 6 8 16 1 0 1 7 4 5 1 1 1 0 11 6 9 4 1 1 1 15 9 11 7 Factory setting Approximate air temperature change from factory setting 0 20 static on high heat Cooling CFM 0 50 Static Switch Settings Furnace Mo...

Страница 48: ... Air Blower Data 9MPV A1 A2 Heating Cooling Continuous Airflow Settings Figure 1 ESP W C 9MPV050 COOLING CFM VS EXTERNAL STATIC PRESSURE SCFM 0 200 400 600 800 1000 1200 1400 0 1 0 3 0 5 0 7 1 000 001 010 011 100 101 110 111 Figure 2 ESP W C 9MPV050 Hi HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM 0 200 400 600 800 1000 1200 0 1 0 2 0 5 0 7 1 000 001 010 011 100 101 110 111 ...

Страница 49: ...Cooling Continuous Airflow Settings Figure 3 ESP W C 9MPV050 Lo HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM 0 100 200 300 400 500 600 700 800 900 1000 0 1 0 2 0 5 0 7 1 000 001 010 011 100 101 110 111 Figure 4 0 200 400 600 800 1000 1200 1400 1600 1800 0 1 0 3 0 5 0 7 1 000 001 010 011 100 101 110 111 ESP W C 9MPV075 COOLING CFM VS EXTERNAL STATIC PRESSURE SCFM ...

Страница 50: ...r Blower Data 9MPV A1 A2 Heating Cooling Continuous Airflow Settings Figure 5 9MPV075 Hi HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM 0 200 400 600 800 1000 1200 1400 0 1 0 2 0 5 0 7 1 000 001 010 011 100 101 110 111 ESP W C 0 200 400 600 800 1000 1200 1400 0 1 0 2 0 5 0 7 1 000 001 010 011 100 101 110 111 Figure 6 9MPV075 Lo HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM ESP W C ...

Страница 51: ... A1 A2 Heating Cooling Continuous Airflow Settings Figure 7 ESP W C 9MPV100 COOLING CFM VS EXTERNAL STATIC PRESSURE SCFM 0 500 1000 1500 2000 2500 0 1 0 3 0 5 0 7 1 000 001 010 011 100 101 110 111 Figure 8 ESP W C 9MPV100 Hi HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM 0 1 0 2 0 3 0 5 0 7 1 000 001 010 011 100 101 110 111 0 500 1000 1500 2000 2500 ...

Страница 52: ...ower Data 9MPV A1 A2 Heating Cooling Continuous Airflow Settings Figure 9 ESP W C 9MPV100 Lo HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM 0 200 400 600 800 1000 1200 1400 1600 1800 0 1 0 2 0 3 0 5 0 7 1 000 001 010 011 100 101 110 111 Figure 10 ESP W C 9MPV125 COOLING CFM VS EXTERNAL STATIC PRESSURE SCFM 0 500 1000 1500 2000 2500 0 1 0 3 0 5 0 7 1 000 001 010 011 100 101 110 111 ...

Страница 53: ...V A1 A2 Heating Cooling Continuous Airflow Settings Figure 11 ESP W C 9MPV125 Lo HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM 0 500 1000 1500 2000 2500 0 1 0 2 0 5 0 7 1 000 001 010 011 100 101 110 111 Figure 12 ESP W C 9MPV125 Hi HEAT CFM VS EXTERNAL STATIC PRESSURE SCFM 0 500 1000 1500 2000 2500 0 1 0 2 0 5 0 7 1 000 001 010 011 100 101 110 111 ...

Страница 54: ...sition Box Hi Fire Std Pressures of WC 5 No Elbows 40 5 90 DWV Elbows Blower Transition Box Lo Fire Std Pressures of WC 5 No Elbows 40 5 90 DWV Elbows 1 80 2 60 1 30 2 30 1 20 1 90 1 00 1 80 1 80 2 60 1 30 2 30 1 20 1 90 1 00 1 80 1 80 2 60 1 70 2 50 1 20 1 90 1 00 1 80 1 80 2 60 1 70 2 50 1 30 2 30 1 20 2 20 Fan Controls Fan Control Type Fan Control On Timed secs Off HW ST9162A 30 60 60 100 140 1...

Страница 55: ...9 462 676 833 1 0 601 747 For 100 A1 A2 Models 4 Ton Units For 125 A1 A2 Models 5 Ton Units Speed CFM Speed Tap Low Med L Med H Hi 0 1 823 1109 1527 1850 0 2 795 1087 1482 1791 0 3 747 1056 1426 1720 0 4 677 1016 1382 1648 0 5 617 970 1317 1575 0 6 544 854 1245 1485 0 7 763 1154 1401 0 8 652 1043 1284 0 9 905 1161 1 0 737 1028 For 075 A2 Models 3 5 Ton Units Speed Tap Low Med L Med H Hi 0 1 695 10...

Страница 56: ...OR 1 2 3 4 L1 IGNITER BK W 2 STAGE BK P BL LP MODELS ONLY SWITCH LP PRESSURE 4 2 4 L1 HEAT HI IND HI COOL EAC HUM CONT IND IN R W W O W W P1 W MOTOR INDUCER M2 M1 W L1 XFMR O L1 BK BK 1 4 4 P1 2 1 5 3 7 4 6 5 3 6 9 1 W1 Y W2 G TRANSFORMER Y W LINE 120 VAC XFMR DC MTR P1 COM 3 NEUTRAL 2 1 VAC 24 4 7 P2 Y2 C R OPTIONAL HUMIDISTAT W G 1 2 3 4 Y Y W1 G TRANSFORMER HIGH INDH MOTOR INDUCER LO INDIN INDL...

Страница 57: ...DELS ONLY SWITCH LP PRESSURE 4 2 4 L1 HEAT HI IND HI COOL EAC HUM CONT IND IN R W W O W W P1 W MOTOR INDUCER M2 M1 W L1 XFMR O L1 BK BK 1 4 4 P1 2 1 5 3 7 4 6 5 3 6 9 1 W1 Y W2 G TRANSFORMER Y W LINE 120 VAC XFMR DC MTR P1 COM 3 NEUTRAL 2 1 VAC 24 4 7 P2 Y2 C R OPTIONAL HUMIDISTAT W G 1 2 3 4 Y Y W1 G TRANSFORMER HIGH INDH MOTOR INDUCER LO INDIN INDL 1 2 3 4 3 1 115V R R COM BR 24VAC BR 5 A FUSE 2...

Страница 58: ...I IND HI COOL EAC HUM CONT IND IN R W W O W W P1 W MOTOR INDUCER M2 M1 W L1 XFMR O L1 BK BK 1 4 4 P1 2 1 5 3 7 4 6 5 3 6 9 1 W1 Y W2 G TRANSFORMER Y W LINE 120 VAC XFMR DC MTR P1 COM 3 NEUTRAL 2 1 VAC 24 4 7 P2 Y2 C R OPTIONAL HUMIDISTAT W G Y Y W1 G TRANSFORMER HIGH INDH MOTOR INDUCER LO INDIN INDL 1 2 3 4 3 1 115V R R COM BR 24VAC BR 5 A FUSE 24VAC IGNITER SENSOR 2 STAGE SHIELD BEAD G BL HIGH IF...

Страница 59: ...W MOTOR INDUCER M2 M1 W L1 XFMR O L1 BK BK 1 4 4 P1 2 1 5 3 7 4 6 5 3 6 9 1 W1 Y W2 G TRANSFORMER Y W LINE 120 VAC XFMR DC MTR P1 COM 3 NEUTRAL 2 1 VAC 24 4 7 P2 Y2 C R OPTIONAL HUMIDISTAT W G 1 2 3 4 Y Y W1 G TRANSFORMER HIGH INDH MOTOR INDUCER LO INDIN INDL 1 2 3 4 3 1 115V R R COM BR 24VAC BR 5 A FUSE 24VAC IGNITER SENSOR 2 STAGE SHIELD BEAD G BL IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE...

Страница 60: ... W1 R G 1 2 3 4 A HI VOLT FIELD G W1 Y W2 R THERMOSTAT 2 STAGE 60HZ 115V 6 1 5 5A FUSE M2 M1 FUSE 5 A SEE MANUALS FOR ADJUSTING SPEED TAPS FOR PROPER HEATING COOLING CIRCULATING SPEEDS 2 INTERNAL CIRCUIT BOARD WIRING LOW VOLTAGE FIELD LOW VOLTAGE FACTORY LINE VOLTAGE FIELD LINE VOLTAGE FACTORY ORANGE MHI RED LO BLACK HI BLUE MLO SPEED TAP CODE HEAT LOW IND LOW PURPLE P YELLOW Y WHITE W RED R ORANG...

Страница 61: ...ADJUSTING SPEED TAPS FOR PROPER HEATING COOLING CIRCULATING SPEEDS 2 INTERNAL CIRCUIT BOARD WIRING LOW VOLTAGE FIELD LOW VOLTAGE FACTORY LINE VOLTAGE FIELD LINE VOLTAGE FACTORY ORANGE MHI RED LO BLACK HI BLUE MLO SPEED TAP CODE HEAT LOW IND LOW PURPLE P YELLOW Y WHITE W RED R ORANGE O GREEN G BROWN BR BLUE BL BLACK BK IND IN IND HI 3 COLOR CODE 24V SECONDARY 115V PRIMARY P1 4 4 3 2 1 7 8 4 4 3 4 3...

Страница 62: ...e 8 Combustion Air Vent Piping 13 16 Combustion Blower See Exhaust Blower Condensate Drain Trap 17 Control Wiring 11 D Diagnostics 20 21 DIP Switch Settings ST9162A 18 Drain Trap Condensate 17 E Electrical Supply 4 Electrical Variation SV9541Q 42 Electronic Fan Timer 20 Exhaust Blower 19 External Static Pressure Checking 28 F Fan Timer Electronic 18 Flame Current Checking 22 Flash Codes 21 G Gas V...

Страница 63: ... Operation 20 Switch Blower Door Interlock 5 Switch DIP ST9140 18 Switch Auxiliary Limit 10 Switch LP Gas Pressure 12 Switch Limit 11 Switch Pressure 12 13 Switch Roll Out Limit 11 T Technical Service Data 44 52 Temperature Rise 8 Testing Sequence ST9162A SV9541Q 21 Thermostat Room 8 Troubleshooting Chart Honeywell SV9541Q 37 38 U Unit Identification 2 V Vent Termination Concentric 16 Vent Termina...

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