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INSTALLATION INSTRUCTIONS

Gas Furnace: (F/G)9MVE

440 01 4401 02

Specifications subject to change without notice.

NOTE

: Bottom closure must be used when leveling legs are

used. It may be necessary to remove and reinstall bottom

closure panel to install leveling legs. To remove bottom closure

panel, see Step 1 in Bottom Return Air Inlet section.
To install leveling legs:

1. Position furnace on its back. Locate and drill a hole in

each bottom corner of furnace.

2. For each leg, install nut on bolt and then install bolt with

nut in hole. (Install flat washer if desired.)

3. Install another nut on other side of furnace base. (Install

flat washer if desired.)

4. Adjust outside nut to provide desired height, and tighten

inside nut to secure arrangement.

5. Reinstall bottom closure panel if removed.

DOWNFLOW INSTALLATION

NOTE

: The furnace must be pitched as shown in

Figure 19

for

proper condensate drainage.

Supply Air Connections

NOTE

: For downflow applications, this furnace is approved for

use on combustible flooring when any one of the following two

accessories are used (see specification sheets for list of

approved accessories):

•

Special Base

−

NAHA01101SB

•

Cased Coil Assembly

−

EAM4X, END4X, ENW4X

1. Determine application being installed from

Table 5

2. Construct hole in floor per

Table 5

and

Figure 22

3. Construct plenum to dimensions specified in

Table 5

and

Figure 22

4. Install as shown in

Figure 24

. If Coil Assembly Part is

used, install as shown in

Figure 25

Figure 22

Floor and Plenum Opening

Dimensions

A96283

NOTE

: It is recommended that the perforated supply

−

air duct

flanges be completely removed from furnace when installing

the furnace on a factory

−

supplied cased coil or coil box. To

remove the supply

−

air duct flange, use wide duct pliers or hand

seamers to bend flange back and forth until it breaks off. Be

careful of sharp edges. (See

Figure 23

)

CAUTION

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, safety glasses and

gloves when handling parts, and servicing furnaces.

Connect supply

−

air duct to supply

−

air outlet on furnace. Bend

flange inward past 90

with wide duct pliers (See

Table 1

Figure 23

) The supply

−

air duct must be connected to ONLY

the furnace supply outlet or air conditioning coil casing (when

used). When installed on combustible material, supply

−

air duct

must be connected to ONLY the factory

−

approved accessory

subbase, or a factory

−

approved air conditioning coil casing.

NOT

cut main furnace casing to attach supply air duct,

humidifier, or other accessories. All supply

−

side accessories

MUST be connected to duct external to furnace casing.

Return Air Connections

WARNING

FIRE HAZARD

A failure to follow this warning could cause personal injury,

death and/or property damage.
Never connect return

−

air ducts to the back of the furnace.

Follow instructions below.

The return

−

air duct must be connected to return

−

air opening

(bottom inlet) as shown in

Figure 28

. DO NOT cut into casing

sides (left or right). Bypass humidifier connections should be

made at ductwork or coil casing sides exterior to furnace. (See

Figure 28

)

Bottom Return Air Inlet

These furnaces are shipped with bottom closure panel installed

in bottom return

−

air opening. Remove and discard this panel

when bottom return air is used. To remove bottom closure

panel, perform the following:

1. Tilt or raise furnace and remove four (4) screws holding

bottom plate. (See

Figure 20

)

2. Remove bottom plate.
3. Remove bottom closure panel.
4. Reinstall bottom plate and screws.

HORIZONTAL INSTALLATION

NOTE

: The furnace must be pitched forward as shown in

Figure 19

for proper condensate drainage.

WARNING

FIRE, EXPLOSION, AND CARBON MONOXIDE

POISONING HAZARD

Failure to follow this warning could result in personal

injury, death, or property damage.
Do not install the furnace on its back or hang furnace with

control compartment facing downward. Safety control

operation will be adversely affected. Never connect

return

−

air ducts to the back of the furnace.

Содержание F9MVE A3 Series

Страница 1: ...anual in the following manner Safety alert symbol When you see this symbol on the unit and in instructions or manuals be alert to the potential for personal injury TABLE OF CONTENTS SAFETY CONSIDERATIONS 3 INTRODUCTION 4 CODES AND STANDARDS 4 ELECTROSTATIC DISCHARGE PRECAUTIONS PROCEDURE 5 DIMENSIONS 6 LOCATION 7 LOCATION RELATIVE TO COOLING EQUIPMENT 8 AIR FOR COMBUSTION AND VENTILATION 9 CONDENS...

Страница 2: ... 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 of local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless u...

Страница 3: ...included in literature and attached to the unit CAUTION 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 safety glasses and gloves when handling parts and servicing furnaces This is the safety alert symbol When you see this symbol on the furnace and in instructions or manuals be...

Страница 4: ... provide 100 percent of the design heating load requirement plus any margin that occurs because of furnace model size capacity increments None of the furnace model sizes can be used if the heating load is 20 000 BTU or lower Use Air Conditioning Contractors of America Manual J and S American Society of Heating Refrigerating and Air Conditioning Engineers or other approved engineering method to cal...

Страница 5: ...the person at the same elec trostatic potential 1 Disconnect 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 2 Firmly touch the clean unpainted metal surface of the furnace chassis which is close to the control Tools held in a person s hand during grounding wi...

Страница 6: ...E 0401410 14 3 16 361 12 1 2 319 12 9 16 322 7 1 8 181 121 54 0401712 17 1 2 445 15 7 8 403 16 406 8 3 4 222 131 59 0601412 14 3 16 361 12 1 2 319 12 9 16 322 7 1 8 181 132 60 0601714 17 1 2 445 15 7 8 403 16 406 8 3 4 222 142 63 0801716 17 1 2 445 15 7 8 403 16 406 8 3 4 222 152 68 0802120 21 533 19 3 8 492 19 1 2 495 10 1 2 267 156 71 1002120 21 533 19 3 8 492 19 1 2 495 10 1 2 267 166 75 120242...

Страница 7: ...shipped in the main blower compartment See Table 2 for loose parts bag contents This furnace must be installed so the electrical components are protected from water not be installed directly on any combustible material other than wood flooring refer to SAFETY CONSIDERATIONS be located close to the chimney or vent and attached to an air distribution system Refer to Air Ducts section be provided amp...

Страница 8: ...e airplane hangar or other building having a hazardous atmo sphere the furnace must be installed in accordance with the NFPA 54 ANSI Z223 1 2012 or CAN CSA B149 1 2010 See Figure 4 Figure 4 Installation in a Garage A93044 WARNING FIRE HAZARD Failure to follow this warning could result in personal in jury death and or property damage Do not install the furnace on its back or hang furnace with contr...

Страница 9: ...ide and iodide These elements can corrode heat exchangers and shorten furnace life Air contaminants are found in aerosol sprays detergents bleaches cleaning solvents salts air fresheners and other household products WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow this warning could result in personal injury or death The operation of exhaust fans kitchen ventilation fans clothes dryers a...

Страница 10: ...least 1 in 2 1 000 Btuh 2 000 mm2 kW of the total input rating of all gas appliances in the space but not less than 100 in 2 0 06 m2 One opening shall commence within 12 in 300 mm of the ceiling and the second opening shall commence within 12 in 300 mm of the floor The minimum dimension of air openings shall be at least 3 in 80 mm See Figure 7 c Combining space on different floor levels The volume...

Страница 11: ...or each two Horizontal Ducts Table 4 Minimum Space Volumes for 100 Combustion Ventilation and Dilution Air from Outdoors OTHER THAN FAN ASSISTED TOTAL 1 000 S BTUH GAS INPUT RATE FAN ASSISTED TOTAL 1 000 S BTUH GAS INPUT RATE ACH 30 40 50 40 60 80 100 120 140 Space Volume Ft3 M3 0 60 1 050 29 7 1 400 39 6 1 750 49 5 1 400 39 6 1 500 42 5 2 000 56 6 2 500 70 8 3 000 84 9 3 500 99 1 0 50 1 260 35 6 ...

Страница 12: ...e in the downflow position Figure 9 shows the condensate trap and tubing before and after relocation Refer to Figure 9 to begin the trap conversion Refer to Condensate Drain section for information how to install the condensate drain Figure 8 Upflow Trap Configuration Condensate Trap Relief Port Collector Box Plugs Pressure Switch Port Condensate Trap Outlet Condensate Trap Relief Port Collector B...

Страница 13: ...ensate drainage See bottom images in Figure 10 and Figure 11 A field supplied accessory Horizontal Installation Kit trap grommet is required for all direct vent horizontal installations only The kit contains a rubber casing grommet designed to seal between the furnace casing and the condensate trap See Figure 16 NOTICE The field supplied accessory horizontal drain trap grommet is ONLY REQUIRED FOR...

Страница 14: ...p to the collector box and remove trap Representative drawing only some models may vary in appearance Horizontal Right Trap Configuration A11573LB Attach condensate trap with screw to collector box Slide relief tube in stand offs to adjust length Vent elbow shown in alternate orientation Tighten clamp on inlet to vent elbow 15 lb in Align trap over middle and right hand port on collector box NOTE ...

Страница 15: ... 5 6 Representative drawing only some models may vary in appearance Horizontal Left Trap Configuration A11574LB Rotate elbow to desired position and torque clamp on inlet 15 lb in Slide relief tube in stand offs to adjust length Attach condensate trap with screw to collector box Align trap over middle and right hand port on collector box Install two plugs previously removed in open ports on collec...

Страница 16: ...flow orientation the condensate trap is inside the furnace casing The condensate drain must be routed from the trap through the furnace casing The condensate drain can be routed through the left or right side of the casing The left or right side is as you are viewing facing the furnace from the front An indoor coil condensate drain or humidifier drain can be connected to the external furnace conde...

Страница 17: ... in CPVC to 3 4 in PVC adapter is supplied in the loose parts bag for use as required 15 Install the adapter or connect the 1 2 in CPVC pipe by sliding a spring clamp over the open end of the grommet on the outside the furnace casing 16 Open the spring clamp and insert the long end of the adapter or the 1 2 in CPVC pipe into the outlet stub on the drain elbow 17 Connect additional condensate pipin...

Страница 18: ...ÄÄÄÄÄ ÄÄÄÄÄÄÄÄÄ Evaporator Coil Blower 3 4 PVC 3 4 1 2 CPVC or larger Positive pressure Pressure lower than areas with ï Negative pressure 3 4 PVC DIRECTION OF AIRFLOW 3 4 3 4 3 4 3 4 3 4 A150263 Figure 14 Example of Field Drain Attachment Air gap here Open standpipe for coil or humidifier drain TEE 1 2 CPVC to 3 4 PVC adapter from loose parts bag To open drain L14F024 L14F025 Condensing Furnace Ä...

Страница 19: ...e knockout Install grommet before relocating condensate trap A11348 Figure 17 Drain Trap Connection and Routing s TRAP DRAIN ELBOW WITH DISCHARGE PIPE Attach elbow to condensate trap Cut formed end off condensate drain elbow Connect short end of Z pipe to modified drain elbow Factory supplied 1 2 in CPVC to 3 4 in PVC adapter LEFT SIDE DRAIN ROUTED BEHIND INDUCER Formed end of grommet Open spring ...

Страница 20: ...l supply side accessories MUST be connected to duct external to furnace main casing Return Air Connections WARNING FIRE HAZARD A failure to follow this warning could cause personal injury death and or property damage Never connect return air ducts to the back of the furnace Follow instructions below The return air duct must be connected to bottom sides left or right or a combination of bottom and ...

Страница 21: ...nal injury Sheet metal parts may have sharp edges or burrs Use care and wear appropriate protective clothing safety glasses and gloves when handling parts and servicing furnaces Connect supply air duct to supply air outlet on furnace Bend flange inward past 90 with wide duct pliers See Table 1 Figure 23 The supply air duct must be connected to ONLY the furnace supply outlet or air conditioning coi...

Страница 22: ...tform blocks bricks or pad Suspended Furnace Support The furnace may be supported under the entire length of the furnace with threaded rod and angle iron See Figure 26 Secure angle iron to bottom of furnace as shown Platform Furnace Support Construct working platform at location where all required furnace clearances are met See Table 1 and Figure 27 For furnaces with 1 in 25 mm clearance requireme...

Страница 23: ...5 8 600 Downflow Applications on Combustible Flooring with Coil Assembly or coil box subbase not required 15 1 2 394 19 483 16 1 2 419 20 508 21 533 Upflow Applications on Combustible or Noncombustible Flooring subbase not required 19 1 2 495 21 5 8 549 20 1 8 511 22 1 4 565 Downflow Applications on Noncombustible Flooring subbase not required 19 3 8 492 19 483 20 508 19 5 8 498 Downflow applicati...

Страница 24: ...uire a drain pan and condensate trap when a condensing furnace is installed over a finished ceiling Figure 27 Working Platform for Attic Installation 2 in 51 mm L14F019 ROLLOUT PROTECTION REQUIRED Install 12 x 22 305 x 559 mm sheet metal in front of burner compartment area COMBUSTION AIR PIPE SEE VENTING SECTION NOTE Local codes may require a drain pan and condensate trap when a condensing furnace...

Страница 25: ...an be installed on either side of the furnace the bottom of the furnace or any combination of side and bottom of the furnace See Figure 29 Figure 32 and Figure 31 For downflow applications the filter rack or field supplied accessory air cleaner must only be connected to the bottom opening on the furnace See Figure 28 and Figure 31 and Table 9 For horizontal applications the filter rack or field su...

Страница 26: ...ashable Representative After Market Filter Media Fiberglass Pleated CFM L s 1 in 2 5 cm 1 in 2 5 cm 2 in 5 cm 1 in 2 5 cm 2 in 5 cm 800 378 0 03 9 0 05 12 0 07 18 0 17 43 0 11 28 1000 472 0 04 11 0 06 16 0 09 24 0 22 55 0 15 37 1200 566 0 05 13 0 08 20 0 12 31 0 27 68 0 18 47 1400 661 0 06 15 0 10 24 0 15 38 0 23 58 1600 755 0 06 16 0 11 29 0 18 45 0 28 69 1800 850 0 07 18 0 13 34 0 21 53 2000 944...

Страница 27: ...ns HORIZONTAL TOP RETURN NOT PERMITTED FOR ANY MODEL SIDE RETURN AIR NOT PERMITTED FOR 2000 CFM AND ABOVE OF AIR FLOW L10F034 External Filter Cabinet Configurations Figure 31 Accessory Bottom Filter Rack L10F031 B A 28 7 16 722 2 22 5 16 566 4 2 3 16 55 5 A Table 9 Dimensional Drawing in mm KIT NO FURNACE WIDTH A B NAHB00501FF 14 3 16 360 4 11 3 8 289 14 1 4 362 NAHB00601FF 17 1 2 444 5 14 5 8 371...

Страница 28: ...ation Ductwork passing through unconditioned space should be insulated to enhance system performance When air conditioning is used a vapor barrier is recommended Maintain a 1 in 25 mm clearance 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 Return Duct Sizing Refer to the Filter Sele...

Страница 29: ...ch has previously served another gas ap pliance Black iron pipe shall be installed at the furnace gas control valve and extend a minimum of 2 in 51 mm outside the furnace CAUTION FURNACE DAMAGE HAZARD Failure to follow this caution may result in furnace dam age Connect gas pipe to furnace using a backup wrench to avoid damaging gas controls and burner misalignment Table 10 Maximum Capacity of Pipe...

Страница 30: ...er to furnace When servicing controls label all wires prior to disconnecting Reconnect wires correctly Verify proper operation after servicing WARNING WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Blower door switch opens 115 v power to control No component operation can occur Do not bypass or close switch with blower door removed See Figur...

Страница 31: ...NLY FIVE WIRE NOTE 2 NOTE 1 1ïSTAGE THERMOSTAT TERMINALS FIELDïSUPPLIED FUSED DISCONNECT CONDENSING UNIT FURNACE COM R W GND GND FIELD 24ïVOLT WIRING FIELD 115ï 208 230ï 460ïVOLT WIRING FACTORY 24ïVOLT WIRING FACTORY 115ïVOLT WIRING Connect Y Y2ïterminal as shown for proper operation Some thermostats require a C terminal connection as shown If any of the original wire as supplied must be replaced ...

Страница 32: ...ng 6 Connect field ground wire and factory ground wire to green ground screw on J Box mounting bracket as shown in Figure 38 7 Connect field power and neutral leads to furnace power leads as shown in Figure 36 8 Attach furnace J Box cover to mounting bracket with screws supplied in loose parts bag Do not pinch wires between cover and bracket 9 Complete external disconnect wiring and installation C...

Страница 33: ...ick connect terminals on the control board marked EAC 1 and EAC 2 The terminals are rated for 115VAC 1 0 amps maximum and are energized during blower motor operation 2 Humidifier HUM The HUM terminal is a 24 VAC output energized when the blower is operating during a call for heat See Figure 41 3 Communication Connector This connection is used when the furnace is controlled by an optional communica...

Страница 34: ...wer Motor L14F003 24 V THERMOSTAT TERMINALS PL2 HOT SURFACE IGNITER INDUCER MOTOR CONNECTOR 115 VAC L2 NEUTRAL CONNECTIONS 115 VAC L1 LINE VOLTAGE CONNECTIONS EAC 1 TERMINAL 115 VAC 1 0 AMP MAX PL1 LOW VOLTAGE MAIN HARNESS CONNECTOR TRANSFORMER 24 VAC CONNECTIONS 3 AMP FUSE STATUS AND COMM LED LIGHTS SW1 SETUP SWITCHES AND BLOWER OFF DELAY MODEL PLUG CONNECTOR COMMUNICATION CONNECTOR AIR CONDITION...

Страница 35: ...tifiés ULC S636 pour l application des composantes Royal Pipe IPEX PVC qui sont certifiées à ce standard Au Canada l apprêt et le ciment doivent être du même fabricant que le système d évacuation L apprêt GVS 65 Purple et le ciment solvant GVS 65 doivent être utilisé avec les Royal Pipe Système IPEX 636 apprêt PVC CPVC Purple pour évacuation des gaz de combustion et système IPEX 636 1 t ciment PVC...

Страница 36: ...ng or death For all venting configurations for this appliance and other gas appliances placed into operation for the structure provisions for adequate combustion ventilation and dilution air must be provided in accordance with U S A Installations Section 9 3 NFPA 54 ANSI Z223 1 1 2012 Air for Combustion and Ventilation and applicable provisions of the local building codes Canadian Installations Pa...

Страница 37: ...RUCTIONS PROVIDED WITH THE EXTERNAL VENT TRAP KIT FOR LAYING OUT THE VENTING SYSTEM AND THE DRAIN SYSTEM The instructions included with this furnace DO NOT APPLY to vent systems that are located below the furnace WARNING CARBON MONOXIDE POISONING HAZARD Failure to follow the instructions outlined in Locating the Vent Termination for each appliance being placed into operation could result in carbon...

Страница 38: ...e corners windows doors or other appliances It is less prone to icing conditions and it often has less visible vent vapors Sidewall terminations may require sealing or shielding of building surfaces with a corrosive resistance material due to the corrosive properties of combustion products from the vent system as well as protection of adjacent structures NOTICE RECOMMENDED SUPPORT FOR VENT TERMINA...

Страница 39: ...he vent pipe for a Non Direct Vent 1 pipe system must terminate outdoors See Figure 63 for references to vent clearances required by National code authorities Allowable vent terminations are shown in Figure 50 A combustion air inlet pipe to the outdoors is not required for a Non Direct Vent System A 12 in long section of pipe with a tight radius 2 in 51 mm 90 degree elbow is required to be attache...

Страница 40: ... 47 Sample Inlet Air Pipe Connection for Polypropylene Venting Systems EXAMPLE FOR UPFLOW INSTALLATIONS MAY BE APPLIED TO OTHER CONFIGURATIONS A12220 Figure 48 Vent Terminations 12 IN 305 MM MIN SEPARATION BETWEEN BOTTOM OF COMBUSTION AIR AND BOTTOM OF VENT MAINTAIN 12 IN 305 MM CLEARANCE ABOVE HIGHEST ANTICIPATED SNOW LEVEL OR GRADE WHICHEVER IS GREATER COMBUSTION AIR ELBOW PARALLEL TO WALL OPTIO...

Страница 41: ...r grade whichever is greater Typ At least 36 in 914mm At least 36 in 914mm Side wall termination of less than 12 in 305mm above highest snow level Maintain 12 in 305mm min Clear ance above highest anticipated snow level or grade whichever is greater Typ Concentric Vent and Combustion Air Side Termination Roof Termination Preferred Note A denotes 0 To 2 in 51mm Between the first 2 vents Third vent ...

Страница 42: ...e air pipe with EITHER a removable cap attached to a 6 inch long pipe connected to the tee or the External vent Trap Kit to help prevent contaminants from entering the furnace See Figure 52 The External Vent Trap Kit accessory may be used as a trap for the combustion air inlet pipe if a large amount of moisture must be removed The drain line may be connected to the same drain as the furnace conden...

Страница 43: ...alculated Total Equivalent Vent Lengths results in different diameter pipes for the vent and combustion air select the larger diameter for both pipes NOTE If the Maximum Vent Length for diameter of the pipe selected is longer than the measured length and the equivalent length of all the fittings and terminations TEVL recalculate Total Equivalent Vent Length using the next smaller diameter If the M...

Страница 44: ...re switch tripping Figure 53 Near Furnace Vent Connections Avoid short horizontal offsets with 90 deg Elbows Short offsets can be difficult to slope and may trap con densate Use 45 deg Elbows where possible to ensure conden sate drainage L14F020A Slope vent pipe back to the furnace at least per foot L14F020B Install the Vent and Combustion Air Pipes With the furnace installed in the required posit...

Страница 45: ...drawing only some models may vary in appearance UPFLOW VERTICAL VENT CONFIGURATION See NOTES following figures Figure 56 Downflow Configurations A11311 Representative drawing only some models may vary in appearance DOWNFLOW LEFT VENT CONFIGURATION A11312 Representative drawing only some models may vary in appearance DOWNFLOW RIGHT VENT CONFIGURATION L11F063 Representative drawing only some models ...

Страница 46: ...ance HORIZONTAL LEFT RIGHT VENT CONFIGURATION Requires accessory Internal Vent Kit Representative drawing only some models may vary in appearance See NOTES following figures Figure 58 Horizontal Right Configurations HORIZONTAL RIGHT VERTICAL VENT CONFIGURATION Representative drawing only some models may vary in appearance HORIZONTAL RIGHT LEFT VENT CONFIGURATION Representative drawing only some mo...

Страница 47: ...ugh the coupling into the outlet of the vent elbow 6 Tighten the clamp around the outlet of the vent elbow Torque the clamp to 15 lb in NOTICE The following instructions are for PVC ABS DWV vent piping only DO NOT USE THESE TECHNIQUES FOR POLYPROPYLENE VENT PIPING SYSTEMS See the polypropylene vent system manufacturer s instructions for installing polypropylene venting systems Install the remainin...

Страница 48: ...amp around the outlet of the vent elbow Torque the clamp to 15 lb in 7 Apply cement to the end of the pipe and to the inside of the plastic vent adapter 8 Slide the adapter over the vent pipe and align the screw holes in the adapter with the dimples in the furnace casing 9 Pilot drill 1 8 in screw holes for the adapter in the casing and secure the adapter to the furnace with sheet metal screws 10 ...

Страница 49: ...sely assemble concentric vent combustion air termination components together using instructions in kit 3 Slide assembled kit with rain shield REMOVED through hole NOTE Do not allow insulation or other materials to accumulate inside of pipe assembly when installing it through hole 4 Locate assembly through sidewall with rain shield positioned no more than 1 in 25 mm from wall as shown in Figure 49 ...

Страница 50: ...Space Vent Termination 3 76 mm 12 305 mm Pipe hangar VentilatedCombustion Air intake termination in crawl space Ventilated Combustion Air intake pipe CRAWL SPACE L11F016A Figure 61 Attic Vent Termination ATTIC 12 305 mm min above higest level of insulation Vent through roof flashing Ventilated Combustion Air intake pipe L11F016B ...

Страница 51: ...ny 12 in 305 mm Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor See Note 4 Manufacturer s Recommendation See Notes 3 8 M Clearance to each side of the centerline extended above or below vent terminal of the furnace to a dryer or water heater vent or other appliance s vent intake or exhaust 12 in 305 mm 12 in 305 mm N Furnace combustion air ...

Страница 52: ...rance under a veranda porch deck or balcony 12 in 305 mm Permitted only if veranda porch deck or balcony is fully open on a minimum of two sides beneath the floor See Note 4 Manufacturer s Recommendation See Notes 3 8 M Clearance to each side of the centerline extended above or below vent terminal of the furnace to a dryer or water heater vent or other appliance s direct vent intake or exhaust 12 ...

Страница 53: ...1 5 19 35 38 8 26 34 36 15 36 39 13 38 5 10 2744 3048 1 5 26 26 N A 17 33 36 7 24 31 33 14 34 36 12 35 3 5 5 Not all families have these models Table 15 DEDUCTIONS FROM MAXIMUM EQUIVALENT VENT LENGTH Feet Meters Pipe Diameter in 1 1 2 2 2 1 2 3 4 Mitered 90º Elbow 8 2 4 8 2 4 8 2 4 8 2 4 8 2 4 Medium Radius 90º Elbow 5 1 5 5 1 5 5 1 5 5 1 5 5 1 5 Long Radius 90º Elbow 3 0 9 3 0 9 3 0 9 3 0 9 3 0 9...

Страница 54: ...s zero for PVC ABS DWV Total Equivalent Vent Length TEVL 112 ft 34 M Add all of the above lines Maximum Equivalent Vent Length MEVL 127 ft 38 7 M For 2 pipe from Table 14 Is TEVL less than MEVL YES Therefore 2 pipe MAY be used Example 2 A direct vent 60 000 BTUH furnace installed at 2100 ft 640M Venting system includes FOR EACH PIPE 100 feet 30 M of vent pipe 95 feet 28 M of combustion air inlet p...

Страница 55: ...Space Metric Winter Design Temp C Unit Size 40 000 BTUH 60 000 BTUH Uninsulated 3 8 in Insulation 1 2 in Insulation Uninsulated 3 8 in Insulation 1 2 in Insulation Pipe Dia mm 38 51 64 38 51 64 38 51 64 38 51 64 76 38 51 64 76 38 51 64 76 7 6 1 6 1 6 1 6 1 15 2 13 7 6 1 18 3 15 2 6 1 9 1 9 1 7 6 6 1 22 9 19 8 18 3 6 1 25 9 22 9 19 8 18 3 0 1 5 1 5 6 1 7 6 6 1 6 1 9 1 7 6 4 6 4 6 3 0 3 0 6 1 12 2 9...

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