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507581-04

Page 9  of  60

Issue 2128

Figure 8. 

Equipment in Confined Space - All Air from 

Outside

If  this  unit  is  being  installed  in  an  application  with 

combustion air coming in from a space serviced by an 

exhaust fan, power exhaust fan, or other device which 

may create a negative pressure in the space, take care 

when sizing the inlet air opening.  The inlet air opening 

must be sized to accommodate the maximum volume 

of  exhaust  air  as  well  as  the  maximum  volume  of 

combustion air required for all gas appliances serviced 

by this space.

 WARNING

Figure 9. 

Equipment in Confined Space

(Inlet Air from Ventilated Attic and Outlet Air to 

Outside)

NOTE-The inlet and outlet air openings shall each have a free area

of at least one square inch per 4,000 Btu (645mm

2 

per 1.17kW) per

hour of the total input rating of all equipment in the enclosure.

Ventilation Louvers

Inlet Air

(Minimum

12 in.(305mm) Above

attic floor)

Roof Terminated

Exhaust Pipe

Furnace

*Intake Debris

Screen

(Provided)

* See Maximum Vent Lengths table

Figure 10. 

Equipment in Confined Space

(Inlet Air from Ventilated Crawlspace and Outlet Air to 

Outside)

NOTE-The inlet and outlet air openings shall each have a free area

of at least one square inch per 4,000 Btu (645mm

2 

per 1.17kW) per

hour of the total input rating of all equipment in the enclosure.

Roof Terminated

Exhaust Pipe

Furnace

Ventilation

Louvers

(Crawl space)

*Intake Debris Screen Provided)

Inlet Air

(Minimum

12 in.(305mm)

Above crawl

space floor)

Coupling or

3 in. to 2 in.

Transition

(Field Provided)

* See Maximum Vent Lengths table

When  ducts  are  used,  they  shall  be  of  the  same  cross-

sectional area as the free area of the openings to which 

they  connect.  The  minimum  dimension  of  rectangular 

air  ducts  shall  be  no  less  than  3  inches  (75  mm).  In 

calculating free area, the blocking effect of louvers, grilles, 

or screens must be considered. If the design and free area 

of protective covering is not known for calculating the size 

opening  required,  it  may  be  assumed  that  wood  louvers 

will have 20 to 25 percent free area and metal louvers and 

grilles will have 60 to 75 percent free area. Louvers and 

grilles  must  be  fixed  in  the  open  position  or  interlocked 

with the equipment so that they are opened automatically 

during equipment operation.

Содержание 030-08

Страница 1: ...quivalent service agency or the gas supplier WARNING As with any mechanical equipment personal injury can result from contact with sharp sheet metal edges Be careful when you handle this equipment CAU...

Страница 2: ...el COMBUSTION AIR INTAKE 2 51 Either Side 2 51 CONDENSATE TRAP CONNECTION Either Side 1 NOTE 20 C D 5 Ton size units installed in upflow applications that require air volumes of 1800 cfm 850 L s or gr...

Страница 3: ...507581 04 Page 3 of 60 Issue 2128 Figure 1 Parts Arrangement...

Страница 4: ...ag assembly containing the following 1 Snap bushing 1 Snap Plug 1 Wire tie 1 Condensate trap 1 Condensate trap cap 1 Condensate trap clamp 1 2 Diameter debris screen 1 3 4 Threaded street elbow Check...

Страница 5: ...obtain a temperature rise within the range specified on the unit nameplate Failure to do so may cause erratic limit operation and premature heat exchanger failure This furnace must be installed so th...

Страница 6: ...LURE TO FOLLOW THE ABOVE INSTALLATION INSTRUCTIONS FAILURE TO FOLLOW THE ABOVE INSTALLATION INSTRUCTIONS VOIDS THE MANUFACTURER S EQUIPMENT LIMITED WARRANTY ALLIED AIR DISCLAIMS ALL LIABILITY IN CONNE...

Страница 7: ...ion from the National Fuel Gas Code ANSI Z223 1 NFPA 54 This reprinted material is not the complete and official position of ANSI on the referenced subject which is represented only by the standard in...

Страница 8: ...e within 12 inches 305 mm of the top of the enclosure and one opening within 12 inches 305 mm of the bottom See Figure 5 Figure 5 Equipment in Confined Space All Air From Inside Air from Outside If ai...

Страница 9: ...in Confined Space Inlet Air from Ventilated Crawlspace and Outlet Air to Outside NOTE The inlet and outlet air openings shall each have a free area of at least one square inch per 4 000 Btu 645mm2per...

Страница 10: ...furnace is placed into operation After the bolt and washer have been removed the rigid leg will not touch the blower housing Figure 11 Units with 1 2 HP Blower Motor Upflow Applications The gas furna...

Страница 11: ...in 610 mm Maintain a minimum of 24 in 610 mm for front service access Allow proper clearances to accommodate condensate trap installation For installations on a combustible floor do not install the f...

Страница 12: ...nsions 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 or IAQ cabinet while maintaining dimensions shown Side return ai...

Страница 13: ...ust piping installation Cooling coils and supply and return air plenums must be supported separately NOTE When the furnace is installed on a platform or with the horizontal suspension kit in a crawl s...

Страница 14: ...a furnace with bottom return air is installed on a platform make an airtight seal between the bottom of the furnace and the platform to ensure that the unit operates properly and safely Use fiberglas...

Страница 15: ...th cement forcefully insert end of pipe into socket until it bottoms out Turn PVC pipe 1 4 turn during assembly but not after pipe is fully inserted to distribute cement evenly Do not turn ABS or cell...

Страница 16: ...n the Vent Piping Guidelines section Model Vent Pipe Dia in STANDARD CONCENTRIC Outdoor Exhaust Accelerator Dia X Length Outdoor Exhaust Accelerator Dia X Length Flush Mount Kit 1 1 2 Concentric Kit 2...

Страница 17: ...her gas burning appliances to their previous mode of operation 7 If a venting problem is found during any of the preceding tests the common venting system must be modified to correct the problem Resiz...

Страница 18: ...ems which include multiple pipe sizes NOTE All horizontal runs of exhaust pipe must slope back toward unit A minimum of 1 4 6 mm drop for each 12 305 mm of horizontal run is mandatory for drainage NOT...

Страница 19: ...9 36 21 70 70 48 13 93 92 73 73 10 31 16 65 65 43 8 89 87 68 68 Standard Termination at Elevation 4 501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Model Model Model Model...

Страница 20: ...74 9 28 13 60 60 44 9 76 76 69 69 10 23 8 55 55 39 n a 71 71 64 64 Concentric Termination Elevation 4 501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Model Model Model Model...

Страница 21: ...5 65 43 8 83 82 63 63 8 31 16 60 60 38 3 78 77 58 58 9 26 11 55 55 33 n a 73 72 53 53 10 21 6 50 50 28 68 67 48 48 Standard Termination Elevation 4 501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2...

Страница 22: ...TRANSITION 1 1 2 2 6 MINIMUM Figure 26 TYPICAL EXHAUST PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON DIRECT VENT APPLICATIONS RIGHT HAND DISCHARGE SHOWN SIDE VIEW 45 MAX 45 MAX 2 2 2 2 or 2 12 max EXH...

Страница 23: ...nstalled in either direct vent or non direct vent applications In non direct vent applications when intake air will be drawn into the furnace from the surrounding space the indoor air quality must be...

Страница 24: ...ng or a platform Ensure that the intake air inlet will not be obstructed by loose insulation or other items that may clog the debris screen 2 If intake air is drawn from a ventilated attic Figure 31 o...

Страница 25: ...2 30 30 2 1 2 in 10 N A 16 N A 26 N A 37 N A 36 N A 3 in 6 6 12 12 21 21 30 30 29 29 20 to 1 7 to 17 1 1 2 in N A N A 12 N A 20 N A N A N A N A N A 2 in 6 4 11 9 19 17 28 25 27 24 2 1 2 in N A N A 7 N...

Страница 26: ...ated within 6 feet 1 8 m of a condensing unit because the condensate can damage the painted coating NOTE See Table 6 for maximum allowed exhaust pipe length without insulation in unconditioned space d...

Страница 27: ...thin a height 15 feet 4 5m above the meter regulator assembly 3 feet 9m 6 inches 152mm for appliances 10 000 pliances 10 000 Btuh 3kw and 50 000 pliances 50 000 Btuh 15kw 6 inches 152mm for appliances...

Страница 28: ...exhaust piping at the point where it exits the structure to improve the velocity of exhaust away from the intake piping See Table 7 Table 7 Exhaust Pipe Termination Size Reduction Model Exhaust Pipe S...

Страница 29: ...nished FIELD PROVIDED REDUCER MAY BE REQUIRED TO ADAPT DIFFERENT VENT PIPE SIZE TO TERMINATION EXHAUST VENT 1 1 2 38mm accelerator provided on 71M80 44W92 kits for 045 and 070 models EXHAUST VENT Figu...

Страница 30: ...within a height 15 feet 4 5m above the meter regulator assembly 3 feet 9m 6 inches 152mm for appliances 10 000 pliances 10 000 Btuh 3kw and 50 000 pliances 50 000 Btuh 15kw 6 inches 152mm for applianc...

Страница 31: ...ce See the following figures Details of Exhaust Piping Terminations for Non Direct Vent Applications Exhaust pipes may be routed either horizontally through an outside wall or vertically through the r...

Страница 32: ...haust from Furnace To Termination Kit 51W18 is shown Figure 49 Crawl Space Vent Pipe Drain Trap Assembled Incorrectly Figure 50 Upflow or Downflow Furnace with Exhaust through Crawl Space KIT 51W18 US...

Страница 33: ...nce above grade or average snow accumulation B Horizontal separation between intake and exhaust C Minimum from end of exhaust to inlet of intake D Exhaust pipe length E Wall support distance from top...

Страница 34: ...in Figure 59 Route the condensate line to an open drain Condensate line must maintain a 1 4 downward slope from the furnace to the drain Do not use copper tubing or existing copper condensate lines fo...

Страница 35: ...trap Piping from furnace must slope down a minimum of 1 4 per ft toward trap Figure 54 Unit with Evaporator Coil When combining the furnace and evaporator coil drains together the A C condensate drain...

Страница 36: ...wn a minimum of 1 4 per ft toward trap Figure 55 Evaporator Coil Using a Common Drain Unit shown in horizontal right hand discharge position Piping from furnace must slope down a minimum of 1 4 per ft...

Страница 37: ...nished Drain Assembly for 3 4 inch Drain Pipe Condensate Drain Connection In Unit Condensate Drain Connection In Unit Vent To Drain Condensate Drain Connection In Unit Optional Condensate Drain Connec...

Страница 38: ...or condensate 5 A 1 8 N P T plugged tap or pressure post is located on the gas valve to facilitate test gauge connection See Figure 60 6 In some localities codes may require installation of a manual m...

Страница 39: ...g Standard DRIP LEG MANUAL MAIN SHUT OFF VALVE Gas Valve Figure 62 Gas Piping Horizontal Configuration Horizontal Applications Possible Gas Piping Configurations NOTE BLACK IRON PIPE ONLY TO BE ROUTED...

Страница 40: ...16 42 530 15 01 490 13 87 460 13 03 430 12 18 400 11 33 1 1 2 38 1 1 610 40 894 2100 59 46 460 41 34 1180 33 41 990 28 03 900 25 48 810 22 94 750 21 24 690 19 54 650 18 41 620 17 56 2 50 8 2 067 52 50...

Страница 41: ...ace cabinet to facilitate wiring 3 Install a separate properly sized disconnect switch near the furnace so that power can be turned off for servicing Table 9 Model Maximum Over Current Protection Amps...

Страница 42: ...of electrical shock Disconnect electrical power at the circuit breaker or service panel before making electrical connections Failure to disconnect power supplies can result in property damage persona...

Страница 43: ...RMOSTAT LO HEAT 24VAC G MANUAL FAN FROM THERMOSTAT PAR C THERMOSTAT SIGNAL GROUND CONNECTED TO TRANSFORMER GRD TR CHASSIS GROUND GRD PAR COMMON 24VAC Y1 THERMOSTAT 1ST STAGE COOL SIGNAL 1 4 QUICK CONN...

Страница 44: ...ated If the switch is toggled to the ON position it will provide a 12 minute delay before second stage heat is initiated This switch is only activated when the thermostat selector jumper is positioned...

Страница 45: ...stage heat ON delay OFF 7 minutes ON 12 minutes ON CUT ON BOARD LINK W915 2 STAGE COMPR DEHUM S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT 1 Heat 2 Cool with t stat with humidity control NOTE Use DIP swi...

Страница 46: ...CUT ON BOARD LINK W914 DEHUM S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT 2 Heat 1 Cool with t stat with humidity control OFF CUT ON BOARD LINK W914 DEHUM S1 T STAT FURNACE TERM STRIP OUTDOOR UNIT Not r...

Страница 47: ...t w bilities Capable of 2 stage gas heat control OFF CUT ON BOARD LINK W951 HEAT PUMP CUT ON BOARD LINK W915 2 STAGE COMPR DEHUM FURNACE TERM STRIP HEAT PUMP L7724U T STAT dual fuel capa dual fuel cap...

Страница 48: ...ties Capable of 2 stage gas heat midification OFF CUT ON BOARD LINK W914 DEHUM CUT ON BOARD LINK W951 HEAT PUMP CUT ON BOARD LINK W915 2 STAGE COMPR L7742U T STAT FURNACE TERM STRIP HEAT PUMP 67M41 H...

Страница 49: ...507581 04 Page 49 of 60 Issue 2128 Figure 66...

Страница 50: ...7 0 70 765 181 650 150 550 124 385 90 180 51 0 80 715 187 615 159 500 127 325 94 135 52 Blower Performance A96UH2E045B12 Performance Less Filter External Static Pressure in w g Air Volume Watts at Var...

Страница 51: ...5 705 150 640 140 0 70 1145 380 1070 310 960 255 670 160 585 145 0 80 N A N A 1035 320 925 265 610 165 550 155 A96UH2E090C16 Performance Less Filter External Static Pressure in w g Air Volume Watts at...

Страница 52: ...1765 335 1635 280 1435 200 2185 655 1915 440 1745 340 1620 275 1430 195 0 10 2170 660 1920 460 1715 350 1595 290 1380 205 2160 660 1880 460 1705 345 1570 285 1380 205 0 20 2130 680 1865 475 1670 370...

Страница 53: ...not attempt to manually light burners on this furnace Each time the thermostat calls for heat the burners will automatically light The ignitor does not get hot when there is no call for heat on these...

Страница 54: ...e unit 11 Set the thermostat to desired setting NOTE When unit is initially started steps 1 through 11 may need to be repeated to purge air from gas line 12 If the appliance will not operate follow th...

Страница 55: ...5 3 1 1 7 3 5 4 5 13 0 LP Propane 4 5 10 0 4 2 9 4 4 0 9 1 3 9 8 9 4 5 10 0 11 0 13 0 NOTE A natural to L P propane gas changeover kit is necessary to convert this unit Refer to the changeover kit ins...

Страница 56: ...ame Rollout Switches Two These manually reset switches are located on the front of the burner box Pressure Switch The pressure switch is located in the heating compartment on the cold end header box T...

Страница 57: ...combustion air pressure tubing from cold end header collector box 15 Mark and remove wires from pressure switch Remove pressure switch Keep tubing attached to pressure switch 16 Remove electrical junc...

Страница 58: ...ng 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 ig...

Страница 59: ...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 Blowe...

Страница 60: ...imum 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...

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