background image

SERVICE AND TECHNICAL SUPPORT MANUAL

Gas Furnace: (F/G)9MVE

Specifications  subject to change without notice.

440 04 4800 00

25

UNIT COMPONENT DAMAGE HAZARD

Failure to follow this caution may result in damage to the

furnace and other property damage.
Do not use ethylene glycol (automotive antifreeze

coolant or equivalent).  Failure of plastic components

may occur.

CAUTION

!

1. Obtain propylene glycol (RV/swimming pool antifreeze or

equivalent).

2. Turn off gas and electrical supplies to your furnace.
3. Remove furnace control door.
4. Remove the top unused rubber plug from the port on the

collector box opposite the condensate trap. (See

Figure 1

)

5. Connect a field supplied 3/8

in. (9.5

mm) ID tube to the

open port on the collector box

6. Insert a field supplied funnel into the tube.
7. Pour 1 quart of anti

freeze solution into the funnel/tube.

Antifreeze should run through the collector box, overfill

condensate trap and flow to an open drain.

8. Replace the rubber plug in the port on the collector box.
9. Remove the middle unused rubber plug from the port on

the collector box opposite the condensate trap. See

Figure 1

.

10. Repeat Steps 5 through 8.

11. If a condensate pump is used, check with pump

manufacturer to verify pump is safe for use with

antifreeze used. Allow pump to start and pump

anti

freeze to open drain.

12. Replace main door.
13. When furnace is re

started, flush condensate pump with

clear water to check for proper operation before

re

starting furnace.

14. Propylene glycol need not be removed before re

starting

furnace.

Содержание F9MVE0401410A

Страница 1: ...pictures or product labels The signal word WARNING is used throughout this manual in the following manner Safety alert symbol When you see this symbol on the unit and in instructions or manuals be al...

Страница 2: ...eath WARNING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE...

Страница 3: ...Manual Gas Shut off Upstream of Furnace Drip Leg Gas Valve turned ON Type of Gas Natural Propane Filter Type and Size Shade in Final Furnace Settings Below OAT PL9 PL4 PL7 SW 1 SW2 SW3 SW4 O N 8 7 6 5...

Страница 4: ...r high stage cooling airflow when a two stage outdoor unit is used Refer to the Adjustments section for set up switch configurations To set the desired cooling airflow 1 Remove blower door 2 Locate A...

Страница 5: ...xchanger failures WARNING FURNACE DAMAGE HAZARD Failure to follow this caution may result in reduced furnace life DO NOT redrill orifices Improper drilling burrs out of round holes etc can cause exces...

Страница 6: ...ce No 44 Furnace is shipped with No 44 orifices In this example all main burner orifices are the correct size and do not need to be changed to obtain proper input rate Manifold pressure 3 4 in w c 847...

Страница 7: ...ssure tap plug to gas valve e Remove jumpers R to W W1 and R to W2 FIRE HAZARD Failure to follow this warning could result in personal injury death and or property damage Re install manifold pressure...

Страница 8: ...TERMINAL 115 VAC 1 0 AMP MAX PL1 LOW VOLTAGE MAIN HARNESS CONNECTOR TERMINALS HARNESS CONNECTOR TRANSFORMER 24 VAC CONNECTIONS 3 AMP FUSE STATUS AND COMM LED LIGHTS SW1 SETUP SWITCHES AND AND ECM BLO...

Страница 9: ...0 300 21 171 343 857 62 58 116 290 22 164 327 818 64 56 112 281 23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48...

Страница 10: ...43 3 8 1 6 42 3 2 1 4 850 44 3 8 1 6 43 3 5 1 5 43 3 6 1 5 43 3 7 1 6 875 44 3 6 1 5 44 3 7 1 6 43 3 4 1 4 43 3 5 1 5 4000 900 44 3 4 1 4 44 3 5 1 5 44 3 7 1 5 44 3 8 1 6 1219 925 44 3 2 1 4 44 3 4 1...

Страница 11: ...re and airflow FURNACE DAMAGE HAZARD Failure to follow this caution may result in S Overheating the heat exchangers or condensing flue gases in heat exchanger areas not designed for condensate S Short...

Страница 12: ...SWITCH SW1 7 and 8 POSITION 90 OFF OFF 120 ON OFF 150 OFF ON 180 ON ON Adjust Cooling Airflow High Speed and Low Speed Cooling The ECM blower can be adjusted for a range of airflows for low speed or...

Страница 13: ...0 seconds to 180 seconds See table in Adjustments section or refer to unit wiring diagram SW4 3 CFM per ton Adjust OFF Allows additional CFM per ton selections when used with SW 1 5 325 CFM per ton no...

Страница 14: ...this method to check limit control it can be established that limit is functioning properly and will operate if there is a restricted return air supply or motor failure If limit control does not funct...

Страница 15: ...50 1110 1075 1045 1005 Cooling SW2 OFF OFF ON 725 660 600 520 435 See note 4 OFF ON OFF 780 725 660 615 540 See note 4 OFF ON ON 975 925 875 835 785 750 690 655 610 570 ON OFF OFF 1160 1120 1090 1045...

Страница 16: ...1015 825 630 485 405 325 See note 4 OFF ON OFF 1080 895 815 740 690 615 555 475 See note 4 OFF ON ON 1155 1080 1020 940 890 825 785 710 660 590 ON OFF OFF 1310 1260 1195 1140 1075 1025 970 925 875 81...

Страница 17: ...sposal CAUTION ELECTRICAL SHOCK FIRE OR EXPLOSION HAZARD Failure to follow this warning could result in personal injury or death or property damage Before installing modifying or servicing system main...

Страница 18: ...e label located on control door or Figure 15 and the troubleshooting guide which can be obtained from your distributor Retrieving Stored Fault Codes The stored status codes will NOT be erased from the...

Страница 19: ...ion device access doors removed WARNING CUT HAZARD Failure to follow this caution may result in personal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective...

Страница 20: ...Figure 9 for steps 5 through 14 5 Remove screws securing blower assembly to blower shelf and slide blower assembly out of furnace Detach ground wire and disconnect blower motor harness plugs from blow...

Страница 21: ...ture rise as shown in Adjustments Section Adjust temperature rise as shown in Adjustments Section Cleaning Burners and Flame Sensor The following items must be performed by a qualified service technic...

Страница 22: ...Surface Igniter NOTE Use propane resistant pipe dope to prevent leaks Do not use Teflon tape 13 Install the gas pipe to the gas valve Figure 12 Igniter Position Side View L12F041 2 in 2 5 mm 3 8 in 3...

Страница 23: ...xternal shut off or gas meter 3 Remove control door and set aside 4 Turn electric switch on gas valve to OFF 5 Disconnect external drain from condensate drain elbow or drain extension pipe inside the...

Страница 24: ...ring diagram and reconnect wires to flame rollout switch gas valve igniter and flame sensor 10 Turn on gas and electrical supplies to furnace 11 Check furnace operation through two complete heat opera...

Страница 25: ...ied 3 8 in 9 5 mm ID tube to the open port on the collector box 6 Insert a field supplied funnel into the tube 7 Pour 1 quart of anti freeze solution into the funnel tube Antifreeze should run through...

Страница 26: ...SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace F G 9MVE Specifications subject to change without notice 440 04 4800 00 26 Figure 15 Service Label 338317 2 Rev H...

Страница 27: ...SERVICE AND TECHNICAL SUPPORT MANUAL Gas Furnace F G 9MVE Specifications subject to change without notice 27 440 04 4800 00 Figure 16 Wiring Diagram 338317 2 Rev H...

Страница 28: ...t flashes When done put setup switch SW1 1 in the OFF position Was there a previous status code other than the heartbeat Go to section below for the status code that was flashed Does the control respo...

Страница 29: ...gh heat then switch to low heat check manifold pressure If OK check burner carryover and flame sensor location Clean flame sensor with fine steel wool and recheck current Nominal current is 4 0 to 6 0...

Страница 30: ...t high speed and the high heat pressure switch relay HPSR is de energized to close the NC contact When sufficient pressure is available the high heat pressure switch HPS closes and the high heat gas v...

Страница 31: ...ll continue operating at cooling airflow for an additional 90 seconds Jumper Y Y2 to DHUM to reduce the cooling off delay to 5 seconds See Figure 4 b Two Stage Thermostat and Two Speed Cooling See Fig...

Страница 32: ...ed with a heat pump the furnace control automatically changes the timing sequence to avoid long blower off times during demand defrost cycles Whenever W W1 is energized along with Y1 or Y Y2 the furna...

Страница 33: ...800 00 Figure 20 Variable Speed Furnace with Single Stage Heat Pump Dual Fuel L09F026 NOTE 9 Figure 21 Variable Speed Furnace with Two Stage Heat Pump Dual Fuel L09F028 NOTE 9 Figure 22 Variable Speed...

Страница 34: ...stallation Instructions for additional information and setup procedure 4 When using a Humidity Sensing Thermostat set DEHUMIDIFY OPTIONS to H DE ENRGZD FOR DEHUM 5 Optional connection If wire is conne...

Страница 35: ...Module when used Inducer motor capacitor when used Collector box Condensate trap Condensate trap elbow Gaskets WARNING FIRE EXPLOSION ELECTRICAL SHOCK AND CARBON MONOXIDE POISONING HAZARD Failure to f...

Страница 36: ...Two stage FEATURE B Base AFUE Efficiency E Extra AFUE Efficiency C Communicating D Dual Certified 2 pipe or 1 pipe R 2 pipe only S Single stage T Two stage N Standard L Low Nox FEATURE 040 40 000 BTU...

Отзывы: