Allied A96US2V Скачать руководство пользователя страница 61 | Manualshive

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507404-02

Page 61 of 80

Issue 1448

Table 20

OPERATING SEQUENCE

Non-Communicating Thermostat with Humidity Control Feature and Two-Speed Outdoor Unit

*Normal operation first stage cooling blower speed is 70% COOL speed.

**Dehumidification blower speed is reduced to 70% of COOL.

*** In Precision Mode, thermostat will maintain room temperature up to 2°F (1.2°C) cooler than the set point.

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Содержание A96US2V

Страница 1: ...ng Sequence of Operation 51 Gas Pressure Adjustment 64 Other Unit Adjustments 65 High Altitude Information 65 Diagnostic 68 Planned Service 76 Repair Parts List 77 Start Up Checklist 78 This is a safety alert symbol and should never be ignored When you see this symbol on labels or in manuals be alert to the potential for personal injury or death This manual must be left with the homeowner for futu...

Страница 2: ...with optional RAB Return Air Base 3 Bottom return air 4 Return air from both sides 5 Bottom and one side return air 2 Optional External Side Return Air Filter kit is not for use with optional Return Air Base Consider sizing requirements for optional IAQ equipment before cutting side return opening FRONT VIEW SIDE VIEW Model Number A B C D A96UH2V in mm in mm in mm in mm 045 12 070 12 17 1 2 448 16...

Страница 3: ...507404 02 Page 3 of 80 Issue 1448 EXPANDED VIEW Figure 1 ...

Страница 4: ...shipping damage If you find any damage immediately contact the last carrier Please refer to specification sheets for available accessories Safety Information DANGER OF EXPLOSION DANGER There are circumstances in which odorant used with LP Propane gas can lose its scent In case of a leak LP Propane gas will settle close to the floor and may be difficult to smell An LP Propane leak detector should b...

Страница 5: ...air supply must be provided according to the current National Fuel Gas Code or CSA B149 standard Installed Locations This furnace is CSA International certified for installation clearances to combustible material as listed on the unit nameplate and in the table in Figures 12 and 17 Accessibility and service clearances must take precedence over fire protection clearances NOTE For installation on co...

Страница 6: ...ts stipulates these additional requirements Gas furnaces shall be installed by a licensed plumber or fitter only The gas cock must be T handle type When a furnace is installed in an attic the passageway to and service area surrounding the equipment shall be floored These units should not be installed in areas normally subject to freezing temperatures CAUTION WARNING Combustion Dilution Ventilation...

Страница 7: ...d or a confined space Unconfined Space An unconfined space is an area such as a basement or large equipment room with a volume greater than 50 cubic feet 1 42 m per 1 000 Btu 29 kW per hour of the combined input rating of all appliances installed in that space This space also includes adjacent rooms which are not separated by a door Though an area may appear to be unconfined it might be necessary ...

Страница 8: ...igures 5 and 6 It is also permissible to bring air for combustion from a ventilated attic Figure 8 or ventilated crawl space Figure 9 When communicating with the outdoors through horizontal ducts each opening shall have a minimum free area of 1 square inch 645 mm per 2 000 Btu 56 kW per hour of the total input rating of all equipment in the enclosure See Figure 7 Figure 5 Equipment in Confined Spa...

Страница 9: ... on the unit nameplate WARNING Blower access panel must be securely in place when blower and burners are operating Gas fumes which could contain carbon monoxide can be drawn into living space resulting in personal injury or death WARNING Do not connect the return air ducts to the back of the furnace Doing so will adversely affect the operation of the safety control devices which could result in pe...

Страница 10: ...he furnace is installed on a platform with bottom return make an airtight seal between the bottom of the furnace and the platform to ensure that the furnace operates properly and safely The furnace is equipped with a removable bottom panel to facilitate installation Markings are provided on both sides of the furnace cabinet for installations that require side return air Cut the furnace cabinet at ...

Страница 11: ...e Upflow Applications Only NOTE Optional side return air filter kits are not for use with return air base 1 Both the unit return air opening and the base return air opening must be covered by a single plenum or IAQ cabinet Minimum unit side return air opening dimensions for units requiring 1800 cfm or more of air W x H 23 x 11 in 584 x 279 mm The opening can be cut as needed to accommodate plenum ...

Страница 12: ...installed above finished space fabricate an auxiliary drain pan to be installed under unit Set unit in drain pan as shown in Figure 19 Leave 8 inches for service clearance below unit for condensate trap 3 Provide a service platform in front of unit When installing the unit in a crawl space a proper support platform may be created using cement blocks 4 Route auxiliary drain line so that water drain...

Страница 13: ...om where this furnace or any other gas fueled appliance i e water heater or carbon monoxide producing device i e wood fireplace is installed When return air is drawn from a room a negative pressure is created in the room If a gas appliance is operating in a room with negative pressure the flue products can be pulled back down the vent pipe and into the room This reverse flow of the flue gas may re...

Страница 14: ...BS to clean inside socket surface of fitting and male end of pipe to depth of fitting socket Canadian Applications Only Pipe fittings primer and solvent cement used to vent exhaust this appliance must be certified to ULC S636 and supplied by a single manufacturer as part of an approved vent exhaust system When bonding the vent system to the furnace use ULC S636 approved One Step Transition Cement ...

Страница 15: ...joint 3 Clean and dry surfaces to be joined 4 Test fit joint and mark depth of fitting on outside of pipe 5 Uniformly apply a liberal coat of PVC primer for PVC or use a clean dry cloth for ABS to clean inside socket surface of fitting and male end of pipe to depth of fitting socket NOTE Time is critical at this stage Do not allow primer to dry before applying cement DANGER OF EXPLOSION Fumes from...

Страница 16: ...n home make provisions for draining condensate collection from trap and lines Removal of the Furnace from Common Vent In the event that an existing furnace is removed from a venting system commonly run with separate gas appliances the venting system is likely to be too large to properly vent the remaining attached appliances Conduct the following test while each appliance is operating and the othe...

Страница 17: ...er draw with the remaining appliance The exhaust vent pipe operates under positive pressure and must be completely sealed to prevent leakage of combustion products into the living space CAUTION Exhaust Piping Route piping to outside of structure Continue with installation following instructions given in piping termination section Do Not discharge exhaust into an existing stack or stack that also s...

Страница 18: ...m of horizontal run is mandatory for drainage NOTE Exhaust pipe MUST be glued to furnace exhaust fittings NOTE Exhaust piping should be checked carefully to make sure there are no sages or low spots EXHAUST PIPE Horizontal Application Figure 22 Use the following steps to correctly size vent pipe diameter Table 4 MINIMUM VENT PIPE LENGTHS A96DF2V MIN VENT LENGTH 045 070 090 110 15 ft or 5 ft plus 2...

Страница 19: ...8 94 5 56 41 19 90 90 68 33 113 112 93 93 89 6 5 36 14 85 85 63 28 108 107 88 88 84 7 46 31 9 80 80 58 23 103 102 83 83 79 8 41 26 n a 75 75 53 18 98 97 78 78 74 9 36 21 70 70 48 13 93 92 73 73 69 10 31 16 65 65 43 8 88 87 68 68 64 Standard Termination Elevation 4500 10 000 ft Number of 90 Elbows Used 2 Pipe 2 1 2 Pipe 3 Pipe Model Model Model 45 70 90 110 135 45 70 90 110 135 45 70 90 110 135 1 7...

Страница 20: ... 94 94 85 5 48 33 17 80 80 64 29 96 96 89 89 80 6 43 28 12 75 75 59 24 91 91 84 84 75 7 38 23 7 70 70 54 19 86 86 79 79 70 8 33 18 n a 65 65 49 14 81 81 74 74 65 9 28 13 60 60 44 9 76 76 69 69 60 10 23 8 55 55 39 n a 71 71 64 64 55 Concentric Termination Elevation 4501 10 000 ft Number of 90 Elbows Used 2 Pipe 2 1 2 Pipe 3 Pipe Model Model Model 45 70 90 110 135 45 70 90 110 135 45 70 90 110 135 1...

Страница 21: ...93 89 2 61 46 24 4 90 90 68 33 108 107 88 88 84 3 56 41 19 n a 85 85 63 28 103 102 83 83 79 4 51 36 14 80 80 58 23 98 97 78 78 74 5 46 31 9 75 75 53 18 93 92 73 73 69 6 41 26 4 70 70 48 13 88 87 68 68 64 7 36 21 n a 65 65 43 8 83 82 63 63 59 8 31 16 60 60 38 3 78 77 58 58 54 9 26 11 55 55 33 n a 73 72 53 53 49 10 21 6 50 50 28 68 67 48 48 44 Standard Termination at Elevation 4500 10 000 ft Number ...

Страница 22: ... size use the shortest length of 2 PVC pipe possible NOTE Exhaust pipe and intake pipe must be the same diameter TYPICAL EXHAUST PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON DIRECT VENT APPLICATIONS RIGHT HAND DISCHARGE SHOWN When transitioning up in pipe size use the shortest length of 2 PVC pipe possible NOTE Exhaust pipe and intake pipe must be the same diameter ...

Страница 23: ...ustion Dilution and Ventilation Air section must be followed Figure 26 When transitioning up in pipe size use the shortest length of 2 PVC pipe possible NOTE Exhaust pipe and intake pipe must be the same diameter TYPICAL AIR INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT VENT APPLICATIONS RIGHT HAND DISCHARGE SHOWN Figure 25 TYPICAL AIR INTAKE PIPE CONNECTIONS IN UPFLOW DIRECT VENT APPLICATIONS When...

Страница 24: ...e unit in Direct Vent applications where combustion air is taken from outdoors and flue gases are discharged outdoors The provided air intake screen must not be used in direct vent applications outdoors Figure 28 Typical Air Intake Pipe Connections Horizontal Non Direct Vent Applications Horizontal Right Hand Air Discharge Application Shown NOTE Debris screen may be positioned straight out preferr...

Страница 25: ...e field provided materials and the factory provided air intake screen to route the intake piping as shown in Figures 27 or 28 Maintain a minimum clearance of 3 76 mm around the air intake opening The air intake opening with the protective screen should always be directed forward or to either side in the upflow position and either straight out or downward in the horizontal position The air intake p...

Страница 26: ...e minimum allowed distance between the combustion air intake inlet and the exhaust outlet of other appliances shall not be less than 12 inches 305 mm IMPORTANT Do not use screens or perforated metal in exhaust terminations Doing so will cause freeze ups and may block the terminations IMPORTANT NOTE During extremely cold temperatures below approximately 20 F 6 7 C units with long runs of vent pipe ...

Страница 27: ...llations2 ƒ ˆ Š ˆ Š ŒŒ Žƒƒ ƒ ˆ Š ˆ Š ŒŒ Žƒƒ ƒ Œ Œ ƒ ƒ ƒ ƒ Ž Ž Š Ž ƒ Š Œ ƒ ˆ Š ƒ ŽŠ ƒ ˆ Š ƒš ŽŠ ŽŠ ƒ Š ƒš ŽŠ ƒ ƒŽ Ž ƒƒ ƒ Œ ƒ Œ Ž œ ƒ Š ƒ ƒ Œ ƒ ƒ ƒ ƒ ƒ ƒ ƒ ž Œ Ÿ ƒ Œƒ Œ ƒ ƒ ƒ ƒ ž ž ƒ ƒ ƒ ƒ ž ƒ Œ ŒŽ Œ ŒŽ ƒ ƒ ƒ Œ ƒ ƒ ƒ Š ŠŽ ˆ ˆ Š Œ Ÿ Š ƒ ˆ Š ƒ ŽŠ ƒ ˆ Š ƒš ŽŠ ŽŠ ƒ Š ƒš ŽŠ Š Œ Ž Š œ Š Š ƒ ˆ Š ƒƒ ƒŽ ƒ Ÿˆ ƒƒ ƒŽ ƒ Œ ƒ ŒŽ Œ ŒŽ ƒ Ž Ž Ž Œ Ž Œ ƒ ƒ ƒ Ž ƒ Œ ƒ Š Ž ƒ Š Œ Š ƒ ƒ ŠŽ ˆ ˆ Š Œ Ÿ ƒ ˆ Š ƒ ƒ ƒ Ÿˆ ƒ ƒŽ ƒƒ ƒ...

Страница 28: ...allations2 ƒ ˆ ƒ ˆ ŠŠ Œ Ž Ž ƒ ˆ ƒ ˆ ŠŠ Œ Ž Ž Š Š Œ Œ ƒ ˆ Ž ƒ Œˆ ƒ ˆ š Ž ƒ Œˆ Ž ƒ Œˆ ƒ ˆ š Ž ƒ Œˆ ƒ ˆ Ž ƒ Œˆ ƒ ˆ Ž ƒ Œˆ Ž ƒ Œˆ ƒ ˆ Ž ƒ Œˆ Œ Œ Š Š Œ œ ƒ ˆ Ž Š Ž š Š ž Ž Š Ž Š Ž Ÿ Ž Ž š Ž š Žš ŠŠŒ ŠŠŒ Ž Ž Š ƒ ˆ ƒ ˆŒ ƒ ˆ Š ž Ž ƒ ˆ ƒ ˆ Ž ƒ Œˆ ƒ ˆ š Ž ƒ Œˆ Ž ƒ Œˆ ƒ ˆ š Ž ƒ Œˆ ƒ ˆ Ž ƒ Œˆ ƒ ˆ Ž ƒ Œˆ Ž ƒ Œˆ ƒ ˆ Ž ƒ Œˆ ƒ ˆŠ Œ ƒ ˆ œ ƒ ˆ ƒ ˆ ƒ ˆ Œ Ž ž ŽŽ Œ Ž Ž ž Œ Œ Ž Ž Ž Š ŠŒ ŠŠŒ Œ Œ Œ Š Œ Š Ž Ž Œ Š Ž Ž Ž Ž ...

Страница 29: ...allations vertical termination through the roof is preferred Figures 33 through 44 show typical terminations 1 Intake and exhaust terminations are not required to be in the same paressure zone You may exit the intake on one side of the structure and the exhaust on another side Figure 34 You may exit the exhaust out the roof and the intake out the side of the structure Figure 35 2 Intake and exhaus...

Страница 30: ...accumulation or other obstructions piping must be supported every 24 610 mm as shown in Figures 37 When exhaust and intake piping must be run up an with pipe sized per Table 6 The intake piping may be equipped with a 90 elbow turndown Using turndown will add 5 feet 1 5 m to the equivalent length of the pipe 8 A multiple furnace installation may use a group of up to four terminations assembled toge...

Страница 31: ...507404 02 Page 31 of 80 Issue 1448 Figure 38 ...

Страница 32: ...507404 02 Page 32 of 80 Issue 1448 Figure 40 FLUSH MOUNT SIDE WALL TERMINATION 51W11 Figure 39 FIELD SUPPLIED WALL TERMINATION ...

Страница 33: ... Non Direct Vent Applications Exhaust pipes may be routed either horizontally through an outside wall or vertically through the roof In attic or closet installations vertical termination through the roof is preferred Figures 45 through 48 show typical terminations 1 Exhaust piping must terminate straight out or up as shown The termination pipe must be sized as listed in Table 7 The specified pipe ...

Страница 34: ...ert piping inside chimney until the pipe open end is above top of chimney and terminate as illustrated In any exterior portion of chimney the exhaust vent must be insulated Figure 47 Use wall support every 24 610 Use two supports if extension is greater than 24 but less than 48 Non Direct Vent Field Supplied Wall Termination Extended Figure 45 Non Direct Vent Roof Termination Kit 15F75 or 44J41 Fi...

Страница 35: ...te trap Refer to Figure 49 and 51 for condensate trap locations Figure 56 shows trap assembly using 1 2 PVC or 3 4 PVC 5 Figures 51 and 52 show the furnace and evaporator coil using a separate drain If necessary the condensate line from the furnace and evaporator coil can drain together See Figure 54 and 55 Upflow furnace Figure 50 In upflow furnace applications the field provided vent must be a m...

Страница 36: ...nd line Heating cable kit is available in various lengths 6 ft 1 8 m kit no 26K68 24 ft 7 3 m kit no 26K69 and 50 ft 15 2 m kit no 26K70 Do not use copper tubing or existing copper condensate lines for drain line CAUTION Figure 50 CONDENSATE TRAP LOCATIONS Unit shown in upflow position with remote trap Piping from furnace must slope down a minimum of 1 4 per ft toward trap Figure 52 UNIT WITH EVAP...

Страница 37: ...t must be vented to relieve pressure in order for the furnace pressure switch to operate properly IMPORTANT Condensate Trap with Optional Overflow Switch Figure 53 Figure 55 Evaporator Coil using a Common Drain Piping from furnace must slope down a minimum of 1 4 per ft toward trap Figure 54 Evaporator Coil using a Common Drain ...

Страница 38: ...507404 02 Page 38 of 80 Issue 1448 Figure 56 TRAP DRAIN ASSEMBLY USING 1 2 PVC or 3 4 PVC ...

Страница 39: ...ully check all piping connections factory and field installed for gas leaks Use a leak detecting solution or other preferred means Never use an open flame to test for gas leaks Check all connections using a commercially available soap solution made specifically for leak detection The furnace must be isolated from the gas supply system by closing its individual manual shut off valve during any pres...

Страница 40: ...507404 02 Page 40 of 80 Issue 1448 Figure 58 NOTE BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET HORIZONTAL APPLICATIONS POSSIBLE GAS PIPING CONFIGURATIONS Figure 59 ...

Страница 41: ...507404 02 Page 41 of 80 Issue 1448 Table 9 ...

Страница 42: ...hat thermostat wire is long enough to facilitate future removal of blower for service 5 Complete the wiring connections to the equipment Use the provided unit wiring diagram and the field wiring diagram shown in Figure 64 Use 18 gauge wire or larger that is suitable for Class II rating for thermostat connections 6 Electrically ground the unit according to local codes or in the absence of local cod...

Страница 43: ...r permanent or temporary power Generator should have a wave form distortion of less than 5 THD Total Harmonic Distortion Electrical Wiring The furnace must be grounded and wired in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA No 70 latest edition and or CSA C22 1 Electrical Code latest edition if an external electrical source is utilized ...

Страница 44: ...h the indoor control Indoor Blower Speeds Non Communicating When the thermostat is set to FAN ON the indoor blower will run continuously at approximately 38 of the second stage cooling speed when there is no cooling or heating demand When the furnace is running in the heating mode the indoor blower will run on the heating speed designated by the positions of DIP switches 11 12 and 13 When there is...

Страница 45: ...507404 02 Page 45 of 80 Issue 1448 ...

Страница 46: ... ƒ Ž Ž ƒ ƒ ˆ ƒ Š ˆ ƒ ƒ ƒ Rf W Gh Gs Cf HVAC EQUIP ƒ ƒ DH ƒ ƒ ƒ š ƒ œž ƒ œž ƒ ƒ Ž Ž Ÿ ƒ š 24V HUMIDIFIER CONNECTIONS 120V CONNECTIONS HEPA BYPASS FILTER X2680 HEPA INTERLOCK KIT ƒ ƒ ˆ ƒ ƒ ƒ ƒƒ ƒ ƒ LVCS VENTILATION CONTROL SYSTEM ƒ ƒ ƒ ƒ ƒ œž ƒ ƒƒ ƒ ƒ Ž ƒƒ Ž ƒ ƒ ƒ Š œž ƒ ƒ œ ƒ ƒ COMMUNICATING SYSTEM WIRING NON COMMUNICATING SYSTEM WIRING HUM CONTACT IS CLOSED ANYTIME HUMIDITY DEMAND IS PRESENT œž ƒ ...

Страница 47: ...507404 02 Page 47 of 80 Issue 1448 Integrated Control Figure 56 ...

Страница 48: ...507404 02 Page 48 of 80 Issue 1448 Field Wiring Applications with Conventional Thermostat Not required on all units Table 13A ...

Страница 49: ...507404 02 Page 49 of 80 Issue 1448 Field Wiring Applications with Conventional Thermostat continued Table 13B Not required on all units ...

Страница 50: ... Must Be Cut To Select System Options ƒ ˆ Š L7724U T STAT FURNACE TERM STRIP HEAT PUMP ŠˆŒ Y H L Y2 D B L Y2 T T outdoor sensor ƒ ˆ Š ƒ ˆ Ž Š FURNACE TERM STRIP HEAT PUMP out blue ŠˆŒ H L Y2 D B L Y2 T T outdoor sensor L7724U T STAT Connect W1 to W1 ONLY if using defrost tempering kit 67M41 NOTE Do NOT make a wire connection between the room thermostat L terminal and the L terminal of the EL296 in...

Страница 51: ...To Select System Options ƒ ˆ Š ƒ Š ƒ ƒ Œ L7742U T STAT FURNACE TERM STRIP HEAT PUMP Ž Y H L Y2 D B L Y2 T T outdoor sensor ƒ Š ƒ ƒ Œ ƒ ˆ Š ƒ ˆ Š ƒ L7742U T STAT FURNACE TERM STRIP HEAT PUMP Ž H L Y2 D B L Y2 T T outdoor sensor Y2 out blue Connect W1 to W1 ONLY if using defrost tempering kit 67M41 NOTE Do NOT make a wire connection between the room thermostat L terminal and the L terminal of the EL...

Страница 52: ...L speed position Continous Fan Only speed approximately 50 of the selected second stage cooling speed minimum 500cfm HEATING 1 Heating Speed Dip Switch Setting First Stage heating Speed cfm Second Stage Heating Speed cfm 24 1085 1210 18 1035 1150 12 980 1090 6 928 1035 Fauctory Default 875 975 6 825 915 12 770 860 18 720 800 COOLING 1 Cooling Speed DIP Switch Settings First Stage Cooling Speed cfm...

Страница 53: ...ow Medium High 2 High 770 935 1075 1240 1100 1320 1540 1760 Factory 700 850 975 1125 1000 1200 1400 1600 630 765 880 1015 900 1080 1260 1440 A96US2V090C16S BLOWER PERFORMANCE less filter 0 through 0 8 in w c Heating and 0 through 1 0 in w c Cooling External Static Pressure Range 1 Cooling and Heating speed are based on a combination of DIP switch setting on the furnace control Refer to installatio...

Страница 54: ...w Medium Low Medium High 2 High 770 935 1075 1235 1100 1320 1540 1760 Factory 700 850 975 1125 1000 1200 1400 1600 630 765 880 1015 900 1080 1260 1440 A96US2V110C16S BLOWER PERFORMANCE less filter 0 through 0 8 in w c Heating and 0 through 1 0 in w c Cooling External Static Pressure Range 1 Cooling and Heating speed are based on a combination of DIP switch setting on the furnace control Refer to i...

Страница 55: ... Medium Low Medium High 2 High 935 1075 1240 1405 1320 1540 1760 2010 Factory 850 975 1125 1275 1200 1400 1600 1825 765 880 1015 1150 1080 1260 1440 1645 A96US2V135D20S BLOWER PERFORMANCE less filter 0 through 0 8 in w c Heating and 0 through 1 0 in w c Cooling External Static Pressure Range 1 Cooling and Heating speed are based on a combination of DIP switch setting on the furnace control Refer t...

Страница 56: ...404 01 Page 56 of 80 Issue 1406 507404 01 Page 56 of 80 Issue 1406 507404 01 Page 56 of 80 Issue 1406 Schematic Wiring Diagram EL296UHV Schematic Wiring Diagram FIGURE 59 Schematic Wiring Diagram Figure 57 Schematic Wiring Diagram Figure 57 ...

Страница 57: ... stage thermostat use Switches 3 and 4 Blower Off Delay The blower ON delay of 30 seconds is not adjustable The blower OFF delay time that the blower operates after the heating demand has been satisfied can be adjusted by moving switches 3 and 4 on the integrated control The unit is shipped from the factory with a blower OFF delay of 90 seconds The blower OFF delay affects comfort and is adjustabl...

Страница 58: ...00 until demand is satisfied Once demand is met motor ramps down to stop Ramping Option C Motor runs at 100 until demand is satisfied Once demand is met motor runs at 100 for 45 seconds then ramps down to stop Ramping Option D Motor runs at 100 until demand is satisfied Once demand is met motor ramps down to stop Switches 11 12 and 13 Heating Mode Blower Speed The switches are factory set to the O...

Страница 59: ...t the outdoor unit will operate in second stage cooling only Diagnostic LED Figure 26 The seven segment diagnostic LED displays operating status target airflow error codes and other information A full listing of LED codes is provided in the Diagnostic Codes Section Diagnostic Push Button Figure 26 The diagnostic push button is located adjacent to the seven segment diagnostic LED This button is use...

Страница 60: ... Communicating Thermostat with Humidity Control Feature and Single Speed Outdoor Unit Dehumidification blower speed is 70 of COOL speed for all units In Precision mode thermostat will maintain room temperature up to 2 F 1 2 C cooler than room setting Table 19 ...

Страница 61: ...mostat with Humidity Control Feature and Two Speed Outdoor Unit Normal operation first stage cooling blower speed is 70 COOL speed Dehumidification blower speed is reduced to 70 of COOL In Precision Mode thermostat will maintain room temperature up to 2 F 1 2 C cooler than the set point ...

Страница 62: ...r because some gas is heavier than air and will settle on the floor The gas valve on the unit is equipped with a gas control switch lever Use only your hand to move switch Never use tools If the switch will not move by hand do not try to repair it Force or attempted repair may result in a fire or explosion Placing the furnace into operation This furnace is equipped with an automatic hot surface ig...

Страница 63: ...ove gas valve switch to OFF 5 Replace the upper access panel Failure To Operate If the unit fails to operate check the following 1 Is the thermostat calling for heat 2 Are access panels securely in place 3 Is the main disconnect switch closed 4 Is there a blown fuse or tripped breaker 5 Is the filter dirty or plugged Dirty or plugged filters will cause the limit control to shut the unit off 6 Is g...

Страница 64: ...ack out the 3 32 Hex screw one turn connect a piece of 5 16 tubing and connect to a manometer to measure supply pressure 2 Start unit and allow 5 minutes for unit to reach steady state 3 While waiting for the unit to stabilize observe the flame Flame should be stable and should not lift from burner Natural gas should burn blue 4 After allowing unit to stabilize for 5 minutes record manifold pressu...

Страница 65: ...installed at altitudes up to 10 000 ft above sea level without manifold adjustment Units installed at altitude of 4501 10 000 feet 1373 to 3048 m may require a pressure switch change which can be ordered separately Table 14 lists conversion kit and pressure switch requirements at varying altitudesd The combustion air pressure switch is factory set and requires no adjustment Fan Control The fan ON ...

Страница 66: ...on stabilization delay expires the inducer speed is adjusted to the appropriate target rate The inducer will remain at the 70 percent speed as long as the thermostat has a first stage heating demand 5 If second stage heat is required the thermostat second stage heat contacts close and send a signal to the integrated control The integrated control initiates a 30 second second stage recognition dela...

Страница 67: ...econd initial ignitor warm up period begins The combustion air inducer continues to opeate at the ignition speed 4 After the 20 second warm up period has ended the gas valve is energized on low fire first stage and ignition occurs At the same time the control module sends a signal to begin an indoor blower 30 second ON delay When the delay ends the indoor blower motor is energized on the low fire ...

Страница 68: ...lt Power high Range is 18 to 30 Volts Check and correct voltage Check for proper line voltage 120V 240V etc to equipment Clears when control senses proper voltage E117 Poor ground detected Warning only Provide proper grounding for unit Check for proper earth ground to the system Warming only will clear 30 seconds after fault recovered E120 Unresponsive device Communicating systems only Usually cau...

Страница 69: ...acity size is NOT pro grammed Invalid unit codes Refer to configuration flow chart No appliance capacity code selected Check for proper configuring under Unit Size Codes for Furnace on configuration guide or in instal lation instruction Critical Alert Cleared after valid unit code is read fol lowing a reset remove thermostat from system while applying power and reprogramming E204 Gas valve mis wir...

Страница 70: ...ng burners Check flame sensor current Clears when heat call finishes successfully E271 Soft lockout Exceeded maximum number of retries Last retry failed due to the pressure switch opening Check pressure inches w c of low pressure switch closing on heat call Measure operating pressure inches w c Inspect vent and com bustion air inducer for correct operation and restriction Clears when heat call fin...

Страница 71: ...an mode is lower than CFM setting Warning Only Restricted airflow Indoor blower is running at a re duced CFM Cutback Mode The variable speed motor has pre set speed and torque limiters to protect the motor from damage caused by operating outside of design parameters 0 to 0 8 W C total external static pressure Check filter and duct system To clear replace filter if needed or repair add duct Cleared...

Страница 72: ...cutive normal run cycles or power reset E404 LSOM Compressor rotor locked Compressor short cycling Running less than 4 minutes Compressor rotor locked up due to run capacitor shore bearings are seized excessive liquid refrigeration etc Clears the error after 4 con secutive normal run cycles or power reset E405 LSOM Compressor open circuit Compressor circuit open due to power disconnection open fus...

Страница 73: ... starts blinking Release the button Push and hold the button until unit size codes are displayed See chart below When the correct unit size code is displayed release the button The selected code will flash for 10 seconds During that period press and hold the button for 5 seconds The integrated control will store the code in memory and automatically exit and reset If the 10 seconds expire or the bu...

Страница 74: ...install the clean out cap Cleaning Heat Exchanger If cleaning the heat exchanger becomes necessary follow the below procedures and refer to Figure 1 when disassembling unit Use papers or protective covering in front of furnace while removing heat exchanger assembly 1 Turn off electrical and gas supplies to the furnace 2 Remove the burner access panel 3 Mark all gas valve wires and disconnect them ...

Страница 75: ...nd cold end header box 39 Secure burner assembly to vestibule panel using four existing screws Burners are self aligning to center of clam shells 40 Reconnect gas supply line to gas valve 41 Reconnect flame rollout switch wires 42 Reconnect sensor wire and reconnect 2 pin plug from ignitor 43 Reconnect wires to gas valve 44 Replace the blower compartment access panel 45 Refer to instruction on ver...

Страница 76: ...ide a seal between the return air and the room where the furnace is installed Return air duct Must be properly attached and provide an air seal to the unit Operating performance Unit must be observed during operation to monitor proper performance of the unit and the vent system Combustion gases Flue products should be analyzed and compared to the unit specifications Problems detected during the in...

Страница 77: ... equivalent service agency or gas supplier Cabinet Parts Upper Access Panel Blower Access Panel Top Cap Control Panel Parts Transformer Integrated Control Board Door Interlock Switch Blower Parts Blower Wheel Motor Motor Mounting Frame Motor Choke Blower Housing Cutoff Plate Heating Parts Flame Sensor Heat Exchanger Assembly Gas Manifold Combustion Air Inducer Gas Valve Main Burner Cluster Main Bu...

Страница 78: ...507404 02 Page 78 of 80 Issue 1448 Start Up Performance Check List UNIT SET UP ...

Страница 79: ...507404 02 Page 79 of 80 Issue 1448 UNIT OPERATION Heating Mode Cooling Mode ...

Страница 80: ... minimum height of eight 8 feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment The sign shall read in print size 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 shall ...

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