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Table 3 – Opening Dimension -- In. (mm)

FURNACE

CASING

WIDTH

APPLICATION

PLENUM OPENING

FLOOR OPENING

17-1/2

(445)

Upflow Applications

16 (406)

24-1/8 (613)

16-5/8 (422)

24-3/4 (629)

Downflow Applications on Non-Combustible Flooring

15-7/8 (403)

19 (483)

16-1/2 (419)

19-5/8 (498)

Downflow Applications on Combustible Flooring Using KGASB Subbase

Furnace with or without CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC

Coil Box

15-1/8 (384)

19 (483)

16-3/4 (425)

20-3/8 (518)

Downflow Applications on Combustible Flooring NOT Using KGASB

Subbase Furnace with CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC Coil

Box

15-1/2 (394)

19 (483)

16-1/2 (419)

20 (508)

(533)

Upflow Applications

19-1/2 (495)

24-1/8 (613)

20-1/8 (511)

24-3/4 (629)

Downflow Applications on Non-Combustible Flooring

19-3/8 (492)

19 (483)

20 (508)

19-5/8 (498)

Downflow Applications on Combustible Flooring Using KGASB Subbase

Furnace with or without CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC

Coil Box

18-5/8 (473)

19 (483)

20-1/4 (514)

20-3/8 (518)

Downflow Applications on Combustible Flooring NOT Using KGASB

Subbase Furnace with CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC Coil

Box

19 (483)

20 (508)

24-1/2

(622)

Upflow Applications

23 (584)

24-1/8 (613)

23-5/8 (600)

24-3/4 (629)

Downflow Applications on Non-Combustible Flooring

22-7/8 (581)

19 (483)

23-1/2 (597)

19-5/8 (498)

Downflow Applications on Combustible Flooring Using KGASB Subbase

Furnace with or without CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC

Coil Box

22-1/8 (562)

19 (483)

23-3/4 (603)

20-3/8 (518)

Downflow Applications on Combustible Flooring NOT Using KGASB

Subbase Furnace with CAP, CAR, CNPV, CNRV Coil Assembly or KCAKC Coil

Box

22-1/2 (572)

19 (483)

23-1/2 (597)

20 (508)

YES

PERFORATED

DISCHARGE DUCT

FLANGE

210 DEG.

MIN

A93029

Fig. 24 -- Duct Flanges

Step 4 -- Air Ducts

GENERAL REQUIREMENTS

The duct system should be designed and sized according to

accepted national standards such as those published by: Air

Conditioning Contractors Association (ACCA), Sheet Metal and

Air Conditioning Contractors National Association (SMACNA)

or American Society of Heating, Refrigerating and Air

Conditioning Engineers (ASHRAE) or consult The

Air Systems

Design Guidelines

reference tables available from your local

distributor. The duct system should be sized to handle the

required system design CFM at the design static pressure.
When a furnace is installed so that the supply ducts carry air

circulated by the furnace to areas outside the space containing the

furnace, the return air shall also be handled by a duct(s) sealed to

the furnace casing and terminating outside the space containing

the furnace.
Secure ductwork with proper fasteners for type of ductwork used.

Seal supply-and return-duct connections to furnace with code

approved tape or duct sealer.

58MCB

Содержание 58MCB

Страница 1: ...sdiction gas inspection authority municipal building department fire department etc should be consulted before installation to determine the need to obtain a permit ama REGISTERED ISO 9001 2000 CERTIFIED Consignes spéciales pour l installation de ventillation au Canada L installation faite au Canada doit se conformer aux exigences du code CSA B149 Ce systême de ventillation doit se composer de tuy...

Страница 2: ...haust 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 not approve the installation unless upon inspection the inspector observ...

Страница 3: ...re electrical shock or other conditions which may cause death personal injury or property damage Consult a qualified installer service agency or your distributor or branch for information or assistance The qualified installer or agency must use factory authorized kits or accessories when modifying this product Refer to the individual instructions packaged with the kits or accessories when installi...

Страница 4: ...in 495mm rectangle c For 1600 CFM 22 in 559mm round or 14 1 2 368mm x 23 1 4 in 591mm rectangle d For airflow requirements above 1800 CFM see Air Delivery table in Product Data literature for specific use of single side inlets The use of both side inlets a combination of 1 side and the bottom or the bottom only will ensure adequate return air openings for airflow requirements above 1800 CFM at 0 5...

Страница 5: ...ing this product 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 clothing and gloves when handling parts CAUTION The 58MCB Multipoise Condensing Gas Fired Furnaces are CSA formerly AGA and CGA design certified for natural and propane gases see furnace rating plate and for instal...

Страница 6: ... of these instructions and furnace rating plate When a furnace is installed so that supply ducts carry air circulated by the furnace to areas outside the space containing the furnace the return air shall also be handled by ducts sealed to the furnace casing and terminating outside the space containing the furnace A gas fired furnace for installation in a residential garage must be installed as spe...

Страница 7: ...the NFGC contact the American Gas Association 400 N Capitol N W Washington DC 20001 S A manufactured Mobile home installation must conform with the Manufactured Home Construction and Safety Standard Title 24 CFR Part 3280 or when this standard is not applicable the Standard for Manufactured Home Installation Manufactured Home Sites Communities and Set Ups ANSI NCS A225 1 and or CAN CSA Z240 MH Ser...

Страница 8: ...sconnect all power to the furnace Multiple disconnects may be required DO NOT TOUCH THE CONTROL OR ANY WIRE CONNECTED TO THE CONTROL PRIOR TO DISCHARGING YOUR BODY S ELECTROSTATIC CHARGE TO GROUND 4 Firmly touch a clean unpainted metal surface of the furnace chassis which is close to the control Tools held in a person s hand during grounding will be satisfactorily discharged 5 After touching the c...

Страница 9: ...UCER HOUSING DRAIN TUBE VIOLET CAP COLLECTOR BOX DRAIN TUBE BLUE WHITE STRIPED PLUG A00289 Fig 7 Alternate Upflow Tube Configuration and Trap Location CONDENSATE TRAP LOCATION FACTORY SHIPPED ORIENTATION The condensate trap is factory installed in the blower shelf and factory connected for UPFLOW applications A factory supplied tube is used to extend the condensate trap drain connection to the des...

Страница 10: ...ubes must be disconnected and modified for attachment See Condensate Trap Tubing Alternate Upflow Orientation section for tubing attachment PLUG COLLECTOR BOX TUBE GREEN COLLECTOR BOX TUBE PINK COLLECTOR BOX DRAIN TUBE BLUE WHITE STRIPED COLLECTOR BOX EXTENSION TUBE CONDENSATE TRAP INDUCER HOUSING DRAIN TUBE VIOLET COLLECTOR BOX EXTENSION TUBE CAP COLLECTOR BOX DRAIN TUBE BLUE A00262 Fig 9 Downflo...

Страница 11: ...lower shelf to desired location perform the following 1 Remove 3 tubes connected to condensate trap 2 Remove trap from blower shelf by gently pushing tabs inward and rotating trap 3 Install casing hole filler cap factory supplied in loose parts bag into blower shelf hole where trap was removed CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death ...

Страница 12: ...e other collector box pressure tube green label which was factory connected to the condensate trap relief port connection MUST be connected to the pressure switch in DOWNFLOW or HORIZONTAL RIGHT applications NOTE See Fig 8 or 9 or tube routing label on main furnace door to check for proper connections Relocate tubes as described below 1 Disconnect collector box pressure tube pink label attached to...

Страница 13: ...box pressure tube pink label is factory connected to the pressure switch for use when furnace is installed in UPFLOW applications This tube MUST be disconnected extended rerouted and then reconnected to the pressure switch in HORIZONTAL LEFT applications NOTE See Fig 10 or tube routing label on main furnace door to check for proper connections Modify tube as described below 1 Disconnect collector ...

Страница 14: ... Platform for Direct Vent 2 pipe Application All Sizes VENT MANUAL SHUTOFF GAS VALVE SEDIMENT TRAP CONDENSATE TRAP DRAIN ACCESS OPENING FOR TRAP 30 IN 762mm MIN WORK AREA A 12 IN 305mm MIN HORIZONTAL PIPE SECTION IS RECOMMENDED WITH SHORT 5 TO 8 FT 1 5 TO 2 4M VENT SYSTEMS TO REDUCE EXCESSIVE CONDENSATE DROPLETS FROM EXITING THE VENT PIPE A 3 IN 76mm MINIMUM CLEARANCE TO COMBUSTION AIR INTAKE IS R...

Страница 15: ...s factory supplied in loose parts bag CONDENSATE TRAP TUBING NOTE See Fig 13 or tube routing label on main furnace door to check for proper connections 1 Collector Box Drain Tube a Remove factory installed plug from LOWER collector box drain tube blue and white striped label b Install removed clamp and plug into UPPER collector box drain tube blue label which was previously connected to condensate...

Страница 16: ... A WORKING PLATFORM Construct working platform where all required furnace clearances are met See Fig 3 and 11 or 12 FRONT BACK FRONT B A C K A93043 Fig 15 Installation on Back is Prohibited UNIT MAY NOT OPERATE Failure to follow this caution may result in intermittent unit operation The condensate trap MUST be installed below furnace See Fig 5 for dimensions The drain connection to condensate trap...

Страница 17: ...truction debris from all HVAC system components after construction is completed After construction is complete verify furnace operating conditions including ignition input rate temperature rise and venting according to the manufacturer s instructions CAUTION FIRE INJURY OR DEATH HAZARD Failure to follow this warning could result in fire property damage personal injury or death Do not install furna...

Страница 18: ...4 4 400 124 5 5 500 155 7 6 600 186 8 7 700 218 0 0 20 3 150 89 1 4 200 118 9 5 250 148 6 3 300 93 4 4 950 140 1 6 600 186 8 8 250 233 6 9 900 280 3 11 550 327 0 0 10 6 300 178 3 8 400 237 8 10 500 297 3 6 600 186 8 9 900 280 3 13 200 373 7 16 500 467 2 19 800 560 6 23 100 654 1 0 00 NP NP NP NP NP NP NP NP NP NON DIRECT VENT 1 PIPE APPLICATION UNIT DAMAGE HAZARD Failure to follow this caution may...

Страница 19: ...quare inch of free area per 2 000 Btuh 1 100 mm2 kW of combined input for all gas appliances in the space per Fig 18 and Table 1 d TWO OPENINGS OR VERTICAL DUCTS require 1 square inch of free area per 4 000 Btuh 550 mm2 kW for combined input of all gas appliances in the space per Fig 18 and Table 1 3 ONE OUTDOOR OPENING requires a 1 square inch of free area per 3 000 Btuh 734 mm2 kW for combined i...

Страница 20: ...ntilation openings directly to outdoors having free area of at least 1 in 2 4 000 Btuh of total input rating for all gas appliances in the space CIRCULATING AIR DUCTS 6 MIN FRONT Ü CIRCULATING AIR DUCTS VENT THROUGH ROOF 1 SQ IN PER 1000 BTUH IN DOOR OR WALL 12 MAX 1 SQ IN PER 1000 BTUH IN DOOR OR WALL 12 MAX UNCONFINED SPACE INTERIOR HEATED SPACE CLEARANCE IN FRONT OF COMBUSTION AIR OPENINGS SHAL...

Страница 21: ... used 1 Determine application being installed from Table 3 2 Construct hole in floor per dimensions specified in Table 3 and Fig 21 3 Construct plenum to dimensions specified in Table 3 and Fig 21 4 If downflow subbase KGASB is used install as shown in Fig 22 If Coil Assembly Part No CNPV CAPV CAP or CAR or Coil Box Part No KCAKC is used install as shown in Fig 23 NOTE Remove furnace perforated di...

Страница 22: ...OPENING FURNACE OR COIL CASING WHEN USED COMBUSTIBLE FLOORING A96285 Fig 22 Furnace Plenum and Subbase Installed on a Combustible Floor FACTORY SUPPLIED CASED COIL OR COIL BOX FURNACE COMBUSTIBLE FLOORING SHEET METAL PLENUM FLOOR OPENING A07586 Fig 23 Furnace Plenum and Coil Assembly or Coil Box Installed on a Combustible Floor 58MCB ...

Страница 23: ...9 483 23 1 2 597 19 5 8 498 Downflow Applications on Combustible Flooring Using KGASB Subbase Furnace with or without CAP CAR CNPV CNRV Coil Assembly or KCAKC Coil Box 22 1 8 562 19 483 23 3 4 603 20 3 8 518 Downflow Applications on Combustible Flooring NOT Using KGASB Subbase Furnace with CAP CAR CNPV CNRV Coil Assembly or KCAKC Coil Box 22 1 2 572 19 483 23 1 2 597 20 508 NO YES YES PERFORATED D...

Страница 24: ...ance from combustible materials to supply air ductwork for a distance of 36 in 914 mm horizontally from the furnace See NFPA 90B or local code for further requirements For a furnace not equipped with a cooling coil the outlet duct shall be provided with a removable access panel This opening shall be accessible when the furnace is installed and shall be of such a size that the heat exchanger can be...

Страница 25: ...personal injury or death Never connect return air ducts to the back of the furnace Return air duct connections on furnace side s permitted in upflow applications only WARNING Upflow Furnaces The return air duct must be connected to end sides left or right or a combination of end and side s of main furnace casing as shown in Fig 2 Bypass humidifier may be attached into unused side return air portio...

Страница 26: ...losure Panel Table 5 Maximum Capacity of Pipe NOMINAL IRON PIPE SIZE IN MM INTERNAL DIA IN MM LENGTH OF PIPE FT M 10 3 0 20 6 0 30 9 1 40 12 1 50 15 2 1 2 12 7 0 622 158 175 120 97 82 73 3 4 19 0 0 824 20 9 360 250 200 170 151 1 25 4 1 049 26 6 680 465 375 320 285 1 1 4 31 8 1 380 35 0 1400 950 770 660 580 1 1 2 38 1 1 610 40 9 2100 1460 1180 990 900 Cubic ft of gas per hr for gas pressures of 0 5...

Страница 27: ...m inlet supply pressures marked on the rating plate with the furnace burners ON and OFF Step 8 Electrical Connections See Fig 30 for field wiring diagram showing typical field 115 v and 24 v wiring Check all factory and field electrical connections for tightness Field supplied wiring shall conform with the limitations of 63 F 35 C rise ELECTRICAL SHOCK HAZARD Failure to follow this warning could r...

Страница 28: ...Table 6 for wire size and fuse specifications A disconnecting means must be located within sight from and readily accessible to furnace NOTE Proper polarity must be maintained for 115 v wiring If polarity is incorrect or the furnace is not grounded control center LED status indicator light will flash rapidly and furnace will NOT operate ELECTRICAL SHOCK AND FIRE HAZARD Failure to follow this warni...

Страница 29: ...hen an existing Category I furnace is removed or replaced the original venting system may no longer be sized to properly vent the remaining attached appliances An improperly sized Category I venting system could cause the formation of condensate in the furnace and vent leakage of condensate and combustion products spillage of combustion products into the living space etc Step 10 Combustion Air and...

Страница 30: ...RAFT MOTOR RELAY SPST N O ILK BLOWER ACCESS PANEL INTERLOCK SWITCH SPST N O J1 BLOWER OFF DELAY JUMPER SELECTOR J2 COOLING OFF DELAY JUMPER JB JUNCTION BOX LED LIGHT EMITTING DIODE FOR STATUS CODES RED LGPS LOW GAS PRESSURE SWITCH SPST N O LS LIMIT SWITCH AUTO RESET SPST N C OL AUTO RESET INTERNAL MOTOR OVERLOAD TEMPERATURE SWITCH N C PCB PRINTED CIRCUIT BOARD CONTROL PL1 11 CIRCUIT PCB CONNECTOR ...

Страница 31: ...an Society for Testing and Materials ASTM standards See Table 7 for approved materials for use in the U S A FIRE AND EXPLOSION HAZARD Failure to follow this warning could result in fire property damage personal injury or death Solvent cements are combustible Keep away from heat sparks and open flame Use only in well ventilated areas Avoid breathing in vapor or allowing contact with skin or eyes WA...

Страница 32: ...OMPONENT TEST TERMINAL BLOWER OFF DELAY J2 J2 JUMPER PLT A02100 Fig 34 Control Board Table 7 Approved Combustion Air and Vent Pipe Fitting and Cement Materials ASTM SPECIFICATION MARKED ON MATERIAL MATERIAL PIPE FITTINGS SOLVENT CEMENT AND PRIMERS DESCRIPTION D1527 ABS Pipe Schedule 40 D1785 PVC Pipe Schedule 40 D2235 For ABS Solvent Cement For ABS D2241 PVC Pipe SDR 21 SDR 26 D2466 PVC Fittings S...

Страница 33: ... 33 12 inches 30 cm for applieances 10 000 Btuh 3 kW and 100 000 Btuh 30kW 36 inches 91cm for appliances 100 000 Btuh 30kW V V A08600 Table 8 Direct Vent Termination Clearance 58MCB ...

Страница 34: ... 34 A08601 Table 9 Other than Direct Vent Termination Clearance 58MCB ...

Страница 35: ...based on R value of 3 5 per in COMBUSTION AIR PIPE General Furnace combustion air connection must be attached as shown in Fig 35 Combustion air intake housing plug may need to be relocated in some applications For Non Direct Vent 1 Pipe system combustion air must terminate outside of furnace casing with 1 elbow Orient elbow so that its opening faces down for upflow or downflow applications Orient ...

Страница 36: ... 43 are not to be counted NOTE The 60 000 model includes an inducer outlet restrictor in the loose parts bag that must be installed for certain vent system configurations Referring to Table 12 locate the altitude for the installation Discard the restrictor if the vent length is greater than that shown in Table 12 install the restrictor if the vent length is less than or equal Refer to Fig 37 for p...

Страница 37: ...used combustion air pipe casing hole NOTE Do not attach combustion air intake pipe permanently to combustion air intake housings since it may be necessary to remove pipe for service of igniter or flame sensor COUPLING MAY BE REMOVED FOR EASIER INSTALLATION INDUCER OUTLET RESTRICTOR A09328 Fig 37 Outlet Restrictor Installation 60 000 BTUH Models only See Table 12 A09329 Fig 38 Illustration of an In...

Страница 38: ...9 1 25 7 6 20 6 1 15 4 6 3 76 no disk NA 60 18 3 56 17 0 52 15 8 48 14 6 44 13 4 40 12 2 4 102 no disk NA 70 21 3 70 21 3 70 21 3 70 21 3 70 21 3 70 21 3 ALTITUDE FT M UNIT SIZE BTUH DIRECT VENT 2 PIPE ONLY NON DIRECT VENT 1 PIPE ONLY NUMBER OF 90 ELBOWS TERMINATION TYPE PIPE DIA IN mm PIPE DIA IN mm 1 2 3 4 5 6 2001 to 3000 610 to 914 40 000 2 Pipe or 2 in Concentric 1 1 2 38 1 1 2 38 67 20 4 62 ...

Страница 39: ...3 4 6 1 8 NA NA NA NA 3 76 no disk NA 30 9 1 26 7 9 22 6 7 18 5 5 14 4 3 10 3 0 4 102 no disk NA 70 21 3 70 21 3 70 21 3 70 21 3 70 21 3 70 21 3 ALTITUDE FT M UNIT SIZE BTUH DIRECT VENT 2 PIPE ONLY NON DIRECT VENT 1 PIPE ONLY NUMBER OF 90 ELBOWS TERMINATION TYPE PIPE DIA IN mm PIPE DIA IN mm 1 2 3 4 5 6 4001 to 5000 1219 to 1524 40 000 2 Pipe or 2 in Concentric 1 1 2 38 1 1 2 38 60 18 3 55 16 8 50...

Страница 40: ...k 70 21 3 70 21 3 70 21 3 70 21 3 70 21 3 70 21 3 140 000 2 Pipe or 3 in Concentric 3 76 no disk NA 12 3 6 8 2 4 NA NA NA NA 4 102 no disk NA 42 12 8 37 11 2 32 9 7 27 8 2 22 6 7 17 5 1 ALTITUDE FT M UNIT SIZE BTUH DIRECT VENT 2 PIPE ONLY NON DIRECT VENT 1 PIPE ONLY NUMBER OF 90 ELBOWS TERMINATION TYPE PIPE DIA IN mm PIPE DIA IN mm 1 2 3 4 5 6 6001 to 7000 1829 to 2134 40 000 2 Pipe or 2 in Concen...

Страница 41: ...3 4 43 13 1 41 12 5 40 12 2 38 11 6 4 102 no disk 4 102 no disk 61 18 6 56 17 1 51 15 5 46 14 0 41 12 5 36 11 0 140 000 NA ALTITUDE FT M UNIT SIZE BTUH DIRECT VENT 2 PIPE ONLY NON DIRECT VENT 1 PIPE ONLY NUMBER OF 90 ELBOWS TERMINATION TYPE PIPE DIA IN mm PIPE DIA IN mm 1 2 3 4 5 6 8001 to 9000 2438 to 2743 40 000 2 Pipe or 2 in Concentric 1 1 2 38 1 1 2 38 46 14 0 41 12 5 36 11 0 31 9 4 29 8 8 24...

Страница 42: ...es having jurisdiction NA Not Allowed pressure switch will not make NOTES 1 Do not use pipe size greater than those specified in table or incomplete combustion flame disturbance or flame sense lockout may occur 2 Size both the combustion air and vent pipe independently then use the larger diameter for both pipes 3 Assume two 45 elbows equal one 90 elbow Wide radius elbows are desirable and may be ...

Страница 43: ...mine vent pipe diameter and maximum pipe lengths Using Table 11 NOTE Direct Vent 2 Pipe ONLY vent pipe system has the same diameter and same length as combustion air pipe as mentioned in section Assembly of Combustion Air Pipe Direct Vent 2 Pipe system ONLY COMBUSTION AIR PIPE DIRECT VENT 2 PIPE BURNER BOX COMBUSTION AIR INTAKE HOUSING 3 8 ID TUBE TRAP TO OPEN DRAIN 3 16 DRILL 4 MIN 102 mm COMBUST...

Страница 44: ...menting any joint 1 Attach combustion air pipe and vent pipe per instructions in sections Combustion Air Pipe and Vent Pipe 2 Working from furnace to outside cut pipe to required length s 3 Deburr inside and outside of pipe 4 Chamfer outside edge of pipe for better distribution of primer and cement 5 Clean and dry all surfaces to be joined 6 Check dry fit of pipe and mark insertion depth on pipe 7...

Страница 45: ...chever is greater typ A At least 36 in A Maintain 12 in 305mm min clearance above highest anticipated snow level Maximum of 24 in 614mm above roof 90 Note A denotes 0 to 2 in Between the first 2 vents Third vent must be 36 in away typ 914mm 305mm 914mm 305mm 305mm 914mm 914mm 457mm 51mm 914mm A05090 Fig 42 Combustion Air and Vent Pipe Termination for Direct Vent 2 pipe System Abandoned masonry use...

Страница 46: ...vent vapors Sidewall termination require sealing or shielding of building surfaces with a corrosive resistance material due to corrosive combustion products of vent system NOTE Direct Vent 2 Pipe system ONLY A factory accessory termination kit MUST be used See section Vent Termination Kit Direct Vent 2 Pipe System Only in this instruction When determining appropriate location for termination consi...

Страница 47: ...ain to this condensate trap The field drain connection condensate trap or drain tube coupling is sized for 1 2 in 13 mm CPVC 1 2 in 13 mm PVC or 5 8 in 16 mm ID tube connection Drain pipe and fittings must conform to ANSI standards and ASTM D1785 D2466 or D2846 CPVC or PVC cement must conform to ASTM D2564 or F493 Primer must conform to ASTM F656 In Canada use CSA or ULC listed schedule 40 CPVC or...

Страница 48: ... primed by pouring water into the inducer drain side of condensate trap CAUTION 1 Remove upper inducer housing drain connection cap See Fig 46 2 Connect field supplied 1 2 in 13 mm ID tube to upper inducer housing drain connection 3 Insert field supplied funnel into tube 4 Pour 1 quart of water into funnel tube Water should run through inducer housing overfill condensate trap and flow into open fi...

Страница 49: ...he outdoor unit will stop and the furnace blower motor BLWM will continue operating on the COOL speed for an additional 90 seconds Cut jumper J2 to reduce the cooling off delay to 5 seconds CONTINUOUS BLOWER MODE When the R to G circuit is closed by the thermostat the blower motor BLWM will operate on continuous blower speed same as HEAT speed Terminal EAC 1 is energized as long as the blower moto...

Страница 50: ...d continues to run until Step g of component test sequence c After 7 seconds the hot surface igniter is energized for 15 sec then off d Blower motor operates on Continuous FAN speed for 10 sec e Blower motor operates on HEAT speed for 10 sec f Blower motor operates on COOL speed for 10 sec g Inducer motor stops 5 Reconnect R lead to furnace control remove tape from blower door switch and re instal...

Страница 51: ...hole appears damaged or it is suspected to have been redrilled check orifice hole with a numbered drill bit of correct size Never redrill an orifice A burr free and squarely aligned orifice hole is essential for proper flame characteristics e Replace gas valve regulator adjustment screw cap f Replace burner enclosure front and verify adjusted gas input rate using method outlined in item 3 UNIT DAM...

Страница 52: ... 52 Table 14 Model 58MCB Orifice Size and Manifold Pressure for Correct Input FOR USE WITH A08606A Percents of derate are based on midpoint of U S altitude ranges 58MCB ...

Страница 53: ... 53 Table 14 Model 58MCB Orifice Size and Manifold Pressure for Correct Input Continued FOR USE WITH A08606B Percents of derate are based on midpoint of U S altitude ranges 58MCB ...

Страница 54: ... 54 Table 15 Model 58MCB Orifice Size and Manifold Pressure for Correct Input FOR USE WITH A08607A Percents of derate are based on midpoint of U S altitude ranges 58MCB ...

Страница 55: ... 55 Table 15 Model 58MCB Orifice Size and Manifold Pressure for Correct Input Continued FOR USE WITH A08607B Percents of derate are based on midpoint of U S altitude ranges 58MCB ...

Страница 56: ...ION Determine and adjust air temperature rise as follows 1 Place thermometers in return and supply ducts as close to furnace as possible Be sure thermometers do not see heat exchanger so that radiant heat does not affect readings This practice is particularly important with straight run ducts Table 17 Gas Rate Cu Ft Hr SECONDS FOR 1 REVOLUTION SIZE OF TEST DIAL SECONDS FOR 1 REVOLUTION SIZE OF TES...

Страница 57: ... set to match the amp draw of the electrical components in R W circuit Accurate amp draw readings can be obtained at thermostat subbase terminals R and W Fig 51 illustrates the easy method of obtaining actual amp draw The amp reading should be taken after blower motor has started and furnace is heating Connect ammeter wires as shown in Fig 51 The thermostat anticipator should NOT be in the circuit...

Страница 58: ...ain furnace door and turn on 115 v power supply CHECKLIST 1 Put away tools and instruments Clean up debris 2 Verify flame rollout manual reset switch has continuity 3 Verify that blower and main access doors are properly installed 4 Cycle test furnace with room thermostat 5 Check operation of accessories per manufacturer s instructions 6 Review User s Guide with owner 7 Leave literature packet nea...

Страница 59: ..._________ Anticipator Setting Adjusted or ________________ Cycle Rate 3 Cycles per Hr Selected Safety Controls Check Operation ________________ Primary Limit ________________ Pressure Switch CHECKLIST NON DIRECT VENT 1 PIPE INSTALLATION LOAD CALCULATION ________________ Heating Load Btuh ________________ Cooling Load Btuh ________________ Furnace Model Selection VENT PIPING Termination Location __...

Страница 60: ...0 W Morris St S Indianapolis IN 46231 Printed in U S A Edition Date 09 09 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 58MCB 4SI Replaces 58MCB 3SI 58MCB ...

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