Allied 96G1UH030BE08 Installation Instructions Manual Download

Page: 7 / 56

507768-05

Page 7 of 56

Issue 2128

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 its entirety.

Insufficient combustion air can cause headaches,

nausea, dizziness or asphyxiation. It will also cause

excess water in the heat exchanger resulting in rusting

and premature heat exchanger failure. Excessive

exposure to contaminated combustion air will result

in safety and performance related problems. Avoid

exposure to the following substances in the combustion

air supply:

•

Permanent wave solutions

•

Chlorinated waxes and cleaners

•

Chlorine base swimming pool chemicals

•

Water softening chemicals

•

De-icing salts or chemicals

•

Carbon tetrachloride

•

Halogen type refrigerants

•

Cleaning solvents (such as perchloroethylene)

•

Printing inks, paint removers, varnishes, etc.

•

Hydrochloric acid

•

Cements and glues

•

Antistatic fabric softeners for clothes dryers

•

Masonry acid washing materials

WARNING

Do not install the furnace in a corrosive or contaminated

atmosphere. Meet all combustion and ventilation air

requirements, as well as all local codes.

CAUTION

In Canada, refer to the CSA B149 Installation codes.

All gas-fired appliances require air for the combustion

process. If sufficient combustion air is not available,

the furnace or other appliance will operate inefficiently

and unsafely. Enough air must be provided to meet the

needs of all fuel-burning appliances and appliances such

as exhaust fans which force air out of the house. When

fireplaces, exhaust fans, or clothes dryers are used at the

same time as the furnace, much more air is required to

ensure proper combustion and to prevent a down draft.

Insufficient air causes incomplete combustion which can

result in carbon monoxide.

In addition to providing combustion air, fresh outdoor air

dilutes contaminants in the indoor air. These contaminants

may include bleaches, adhesives, detergents, solvents

and other contaminants which can corrode furnace

components.

The requirements for providing air for combustion and

ventilation depend largely on whether the furnace is

installed in an unconfined 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 m³) 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 to bring in outdoor air

for combustion if the structure does not provide enough air

by infiltration. If the furnace is located in a building of tight

construction with weather stripping and caulking around

the windows and doors, follow the procedures in the “Air

from Outside” section.

Confined Space

A confined space is an area with a volume less than 50

cubic feet (1.42 m³) per 1,000 Btu (.29 kW) per hour of

the combined input rating of all appliances installed in that

space. This definition includes furnace closets or small

equipment rooms.

When the furnace is installed so that supply ducts carry

air circulated by the furnace to areas outside the space

containing the furnace, the return air must be handled by

ducts which are sealed to the furnace casing and which

terminate outside the space containing the furnace. This

is especially important when the furnace is mounted on

a platform in a confined space such as a closet or small

equipment room. Even a small leak around the base of the

unit at the platform or at the return air duct connection can

cause a potentially dangerous negative pressure condition.

Air for combustion and ventilation can be brought into the

confined space either from inside the building or from

outside.

Air from Inside

If the confined space that houses the furnace adjoins a

space categorized as unconfined, air can be brought in

by providing two permanent openings between the two

spaces. Each opening must have a minimum free area of 1

square inch (645 mm²) per 1,000 Btu (.29 kW) per hour of

total input rating of all gas-fired equipment in the confined

space. Each opening must be at least 100 square inches

(64516 mm²). One opening shall be 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.

Summary of Contents for 96G1UH030BE08

Page 1: ...loss of life Installation and service must be performed by a licensed professional installer or equivalent 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 CAUTION Table of Contents Unit Dimensions 2 Parts Arrangement 3 Gas Furnace 4 Shipping and Packing List 4 ...

Page 2: ...ide 23 3 4 603 25 635 3 3 8 86 D 1 NOTE C 20 5 Ton size units installed in upflow applications that require air volumes of 1800 cfm 850 L s or greater must have one of the following 1 Single side return air with transition to accommodate 20 x 25 x 1 in 508 x 635 x 25 mm cleanable air filter Required to maintain proper air velocity 2 Single side return air with optional RAB Return Air Base 3 Bottom...

Page 3: ...507768 05 Page 3 of 56 Issue 2128 Figure 1 Parts Arrangement ...

Page 4: ...2 diameter debris screen 1 3 4 Threaded street elbow NOTE The required bellows grommet is field provided See the Gas Piping section for relevant diagrams Check equipment for 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 There are circumstances in which odorant used wi...

Page 5: ...operation of either the heating or the cooling unit unless it is in the full HEAT or COOL setting When installed this furnace must be electrically grounded according to local codes In addition in the United States installation must conform with the current National Electric Code ANSI NFPA No 70 The National Electric Code ANSI NFPA No 70 is available from the following address National Fire Protect...

Page 6: ...d unsafe operation When the furnace is installed in non direct vent applications do not block the furnace combustion air opening with clothing boxes doors etc Air is needed for proper combustion and safe unit operation When the furnace is installed in an attic or other insulated space keep insulation away from the furnace When the furnace is installed in an unconditioned space consider provisions ...

Page 7: ...combustion and ventilation depend largely on whether the furnace is installed in an unconfined 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 ...

Page 8: ...hey 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 assum...

Page 9: ...ilated Crawl Space and Outlet Air to Outside Shipping Bolt Removal Units with 1 2 hp 3 4 hp blower motor are equipped with three flexible legs and one rigid leg The rigid leg is equipped with a shipping bolt and a flat white plastic washer rather than the rubber mounting grommet used with a flexible mounting leg See Figure 11 The bolt and washer must be removed before the furnace is placed into op...

Page 10: ...ystem The base must provide a stable support and an airtight seal to the furnace Allow absolutely no sagging cracks gaps etc For no reason should return and supply air duct systems ever be connected to or from other heating devices such as a fireplace or stove etc Fire explosion carbon monoxide poisoning personal injury and or property damage could result WARNING Figure 13 Installation Clearances ...

Page 11: ...ings are provided on both sides of the furnace cabinet for installations that require side return air Cut the furnace cabinet at the maximum dimensions shown on Page 2 Furnace applications which include side return air and a condensate trap installed on the same side of the cabinet trap can be installed remotely within 5 ft require either a return air base or field fabricated transition to accommo...

Page 12: ...Air Flow Right Hand Discharge Left End Right End Air Flow Air Flow Bottom Floor Left Hand Discharge Top Plenum 1 in 25 mm Front 0 Back 0 Sides 0 Vent 0 Floor 0 Front clearance in alcove installation must be 24 in 610 mm Maintain a minimum of 24 in 610 mm for front service access Allow proper clearances to accommodate condensate trap For installations on a combustible floor do not install the furna...

Page 13: ...Filters This unit is not equipped with a filter or rack Afield provided filter is required for the unit to operate properly Table 1 lists recommended filter sizes A filter must be in place whenever the unit is operating Table 1 Furnace Cabinet Width Filter Size Side Return Bottom Return B 17 1 2 16 x 25 x 1 1 16 x 25 x 1 1 C 21 20 x 25 x 1 1 Duct System Use industry approved standards to size and ...

Page 14: ... either PVC or CPVC Low temperature solvent cement is recommended during cooler weather Metal or plastic strapping may be used for vent pipe hangers 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 Canadian Applications Only Pipe fittings primer and solvent cement used to ...

Page 15: ...tric kit is provided with a 1 1 2 accelerator which must be installed on the exhaust outlet when this kit is used with the 45 000 and 70 000 furnaces When using 1 1 2 in piping the pipe must be transitioned to 2 in pipe when used with the Concentric Kit Joint Cementing Procedure All cementing of joints should be done according to the specifications outlined in ASTM D 2855 NOTE A sheet metal screw ...

Page 16: ...nce connected to the venting system being placed into operation could result in carbon monoxide poisoning or death The following steps shall be followed for each appliance connected to the venting system being placed into operation while all other appliances connected to the venting system are not in operation WARNING 1 Seal any unused openings in the common venting system 2 Inspect the venting sy...

Page 17: ...o prevent leakage of combustion products into the living space CAUTION Vent Piping Guidelines This gas furnace can be installed as either a Non Direct Vent or a Direct Vent gas central furnace NOTE In non Direct Vent installations combustion air is taken from indoors and flue gases are discharged outdoors In Direct Vent installations combustion air is taken from outdoors and flue gases are dischar...

Page 18: ...pacity Min Vent Length 030 045 070 090 110 15 ft or 5 ft plus 2 elbows or 10 ft plus 1 elbow Any approved termination may be added to the minimum length listed 030 045 070 090 110 Standard or Concentric See Table 3 Intake or Exhaust 1 1 2 2 2 1 2 or 3 Furnace capacity 1 Which termination 2 Which needs most elbows 3 How many 4 Desired pipe size 5 What is the altitude 6 Use Table 5 to find max pipe ...

Page 19: ...7 97 78 78 9 36 21 70 55 23 92 92 73 73 10 31 16 65 50 18 87 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 Capacity Capacity Capacity Capacity 030 045 070 090 110 030 045 070 090 110 030 045 070 090 110 030 045 070 090 110 1 25 20 15 n a n a 76 61 39 n a 110 95 63 38 132 132 113 113 2 20 15 10 71 56 34 105 90 58 33 127 127 1...

Page 20: ...4 81 81 74 74 9 28 13 60 45 19 76 76 69 69 10 23 8 55 40 14 71 71 64 64 Concentric Termination Elevation 4501 10 000 ft Number of 90 Elbows Used 1 1 2 Pipe 2 Pipe 2 1 2 Pipe 3 Pipe Capacity Capacity Capacity Capacity 030 045 070 090 110 030 045 070 090 110 030 045 070 090 110 030 045 070 090 110 1 20 15 10 n a n a 68 53 37 n a 100 85 59 34 116 116 109 109 2 15 10 n a 63 48 32 95 80 54 29 111 111 1...

Page 21: ...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 Pipe 2 1 2 Pipe 3 Pipe Capacity Capacity Capacity Capacity 030 045 070 090 110 030 045 070 090 110 030 045 070 090 110 030 045 070 090 110 1 20 15 10 n a n a 66 51 29 n a 95 95 73 38 113 112 93 93 2 15 10 n a 61 46 24 90 90 68 33 108 107 88 88 3 10 n a 56 41 19 85 85 63 28 ...

Page 22: ...ON 1 1 2 2 6 MINIMUM Figure 25 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 EXHAUST TRANSITION 3 2 2 EXHAUST TRANSITION 1 1 2 2 2 EXHAUST or NOTE 1 1 2 Vent Pipe Diameter Allowed Only on 030 045 070 Units DO NOT transition from larger to smaller pipe in horizontal runs of exhaust pipe EX...

Page 23: ...talled 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 considered and guidelines listed in Combustion Dilution and Ventilation Air section must be followed Follow the next two steps when installing the unit in Direct Vent applications where combustion air i...

Page 24: ...ing 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 or ventilated crawlspace Figure 32 the exhaust vent length must not exceed those listed in Table 5C If 3 diameter pipe is used reduce to 2 diameter pipe at the termination point to accommodate the deb...

Page 25: ...ination care must be taken to maintain protective coatings over building materials prolonged exposure to exhaust condensate can destroy protective coatings It is recommended that the exhaust outlet not be located 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...

Page 26: ... N A 15 N A 22 N A 3 in N A N A N A N A N A N A 10 10 16 16 1 Refer to 99 Minimum Design Temperature table provided in the current edition of the ASHRAE Fundamentals Handbook 2 Poly Propylene vent pipe PP by Duravent and Centrotherm 3 Vent length in table is equivalent length Each elbow is equivalent to 5ft of straight pipe and should be included when measuring total length NOTE Maximum uninsulate...

Page 27: ... Clearance under veranda porch deck or balcony 12 Equal to or greater than soffit depth 3 feet 9m 12 3 feet 9m within a height 15 feet 4 5m above the meter regulator assembly 3 feet 9m 6 inches 152mm for appliances 10 000 Btuh 3kw 12 inches 305mm for appliances 10 000 Btuh 3kw and 100 000 Btuh 30kw 36 inches 9m for appliances 100 000 Btuh 30kw 3 feet 9m above if within 10 feet 3m horizontally 6 fe...

Page 28: ...ches 152mm for appliances 10 000 pliances 10 000 Btuh 3kw and 50 000 pliances 50 000 Btuh 15kw 6 inches 152mm for appliances 10 000 Btuh 3kw 12 inches 305mm for appliances 10 000 Btuh 3kw and 100 000 Btuh 30kw 36 inches 9m for appliances 100 000 Btuh 30kw 3 feet 9m above if within 10 feet 3m horizontally 6 feet 1 8m 7 feet 2 1m 12 inches 305mm 1 In accordance with the current ANSI Z223 1 NFPA 54 N...

Page 29: ...Figure 38 2 Intake and exhaust pipes should be placed as close together as possible at termination end refer to illustrations Minimum separation is 3 76 mm on roof terminations and 6 152 mm on sidewall terminations 3 On roof terminations the intake piping should terminate straight down using two 90 elbows see Figure 36 4 Exhaust piping must terminate straight out or up as shown A reducer may be re...

Page 30: ...ance 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 of each pipe intake exhaust 12 305 mm Min 12 305 mm Min 6 152 mm Min 24 610 mm Max 9 227 mm Min 12 305 mm Min 16 405 mm Max 6 152 mm Max 6 152 mm Min 24 610 mm Max 9 227 mm Min 12 305 mm Min 20 508 m...

Page 31: ...nada Minimum Above Average Snow Accumulation SHEET METAL STRAP Clamp and sheet metal strap must be field installed to support the weight of the termination kit FLASHING Not Furnished CLAMP INTAKE 12 305mm FIELD PROVIDED REDUCER MAY BE REQUIRED TO ADAPT DIFFERENT VENT PIPE SIZE TO TERMINATION Figure 43 DIRECT VENT CONCENTRIC WALL TERMINATION 71M80 69M29 or 60L46 US 44W92 or 44W93 Canada 12 305mm Mi...

Page 32: ...ion SIZE TERMINATION PER EXHAUST PIPE TERMINATION SIZE REDUCTION TABLE FIELD PROVIDED REDUCER MAY BE REQUIRED TO ADAPT DIFFERENT VENT PIPE SIZE TO TERMINATION 3 If exhaust piping must be run up a sidewall to position above snow accumulation or other obstructions piping must be supported every 24 610 mm as shown in Figure 47 When exhaust piping must be run up an outside wall any reduction in exhaus...

Page 33: ...Termination Drain Trap assembled Figure 49 Kit 51W18 USA 15Z70 Canada Parts Identification and Assembly Exhaust from Furnace To Termination Exhaust from Furnace To Termination Kit 51W18 is shown Figure 50 Crawl Space Vent Pipe Drain Trap Assembled Incorrectly Figure 51 Upflow or Downflow Furnace with Exhaust through Crawl Space KIT 51W18 USA Basement Floor To Termination 1 2 PVC to Code Approved D...

Page 34: ...nd Figure 56 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 57 and Figure 58 Upflow furnace Figure 53 In upflow furnace applications the field provided vent must be a minimum 1 to a maximum 2 length above the condensate drain outlet connection Any length above 2 may result in a flooded ...

Page 35: ...ing from furnace must slope down a minimum of 1 4 per ft toward trap Figure 54 Condensate Trap with Optional Overflow Switch When combining the furnace and evaporator coil drains together the A C condensate drain outlet must be vented to relieve pressure in order for the furnace pressure switch to operate properly WARNING ...

Page 36: ...e must slope down a minimum of 1 4 per ft toward trap Figure 56 Unit with Cooling Coil Using Separate Drain Figure 57 Evaporator Coil Using a Common Drain Figure 58 Evaporator Coil Using a Common Drain Piping from furnace and evaporator coil must slope down a minimum 1 4 per ft toward trap ...

Page 37: ...507768 05 Page 37 of 56 Issue 2128 Figure 59 Trap Drain Assembly Using 1 2 PVC or 3 4 PVC ...

Page 38: ... vertical pipe runs to serve as a trap for sediment 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 main shut off valve and union furnished by installer external to the unit Union must be of the ground joint type Compounds used on threaded joints of...

Page 39: ...507768 05 Page 39 of 56 Issue 2128 Figure 61 Gas Piping Upflow Applications Figure 62 Gas Piping Horizontal Applications ...

Page 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 52 502 3950 111 85 2750 77 87 2200 62 30 1900 53 80 1680 47 57 1520 43 04 1400 39 64 1300 36 81 1220 34 55 1150 32 56 2 1 2 63 5 2 469 67 713 6300 178 39 4350 123 17 3520 99 67 3000 84 95 2650 75 04 2400 ...

Page 41: ...at check to make sure the wires will be long enough for servicing at a later date Make sure that thermostat wire is long enough to facilitate future removal of blower for service Complete the wiring connections to the equipment Use the provided unit wiring diagram and the field wiring diagram shown in Figure 66 Use 18 gauge wire or larger that is suitable for Class II rating for thermostat connect...

Page 42: ...e is no cooling or heating demand See Table 14 for allowable continuous circulation speeds 2 When the furnace is running in the heating mode the indoor blower will run on the heating speed 3 When there is a cooling demand the indoor blower will run on the cooling speed Generator Use Voltage Requirements The furnace requires 120 volts 10 Range 108 volts to 132 volts The furnace operates at 60 Hz 5 ...

Page 43: ...507768 05 Page 43 of 56 Issue 2128 Figure 67 Typical Wiring Diagram ...

Page 44: ...or gas Be sure to smell next to the floor 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 e...

Page 45: ... supplier s instructions If you do not smell gas go to next step 8 Move gas valve switch to ON See Figure 69 9 Replace the upper access panel 10 Turn on all electrical power to the 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 the instructions Turnin...

Page 46: ...n result in permanent damage to gas valve or overfire On multiple unit installations each unit should be checked separately with and without other units operating Supply pressure must fall within range listed in Table 11 Manifold Pressure Measurement 1 Remove the threaded plug from the outlet side of the gas valve and install a field provided barbed fitting Connect to a manometer to measure manifo...

Page 47: ...and require no adjustment Table 12 Burner Orifice Conversion Kits at Varying Altitudes Capacity 0 7 500 ft 0 2 286m 7 501 10 000 ft 2 286 3 048 m Natural to LP Propane LP Propane to Natural High Altitude Natural Burner Orifice Kit High Altitude LP Propane Burner Orifice Kit 030 17H62 N A N A N A 045 11K50 73W80 51W01 11K45 070 090 110 Conversion requires installation of a gas valve regulator sprin...

Page 48: ...d and other spaces of the building 4 Close fireplace dampers 5 Turn on clothes dryers and any appliances not connected to the venting system Turn on any exhaust fans such as range hoods and bathroom exhausts so they will operate at maximum speed Do not operate a summer exhaust fan 6 Follow the lighting instruction to place the appliance being inspected into operation Adjust thermostat so appliance...

Page 49: ...at Anticipation Set the heat anticipator setting if adjustable according to the amp draw listed on the wiring diagram that is attached to the unit Electrical 1 Check all wiring for loose connections 2 Check for the correct voltage at the furnace with furnace operating Correct voltage is 120 VAC 10 3 Check amp draw on the blower motor with the blower access panel in place Motor Nameplate___________...

Page 50: ...70 75 0 10 1430 350 1260 245 1155 185 885 95 830 85 0 20 1405 365 1235 255 1125 200 860 105 800 90 0 30 1375 370 1205 265 1090 210 825 115 755 95 0 40 1350 380 1175 275 1055 215 780 125 710 105 0 50 1315 385 1145 285 1020 230 735 130 665 115 0 60 1245 375 1110 295 980 240 685 140 620 125 0 70 N A N A 1070 305 940 250 640 145 575 135 0 80 N A N A 1020 310 905 260 600 155 530 140 96G1UHE 070 B12 Per...

Page 51: ...75 440 1800 325 1665 390 1050 180 2180 685 1910 460 1750 345 1660 285 1430 195 0 10 2185 680 1925 460 1750 345 1625 285 1440 200 2155 705 1885 480 1720 360 1610 295 1415 205 0 20 2150 705 1880 480 1710 365 1590 300 1390 220 2130 725 1855 495 1685 380 1565 305 1380 220 0 30 2110 720 1850 495 1680 380 1560 320 1350 230 2085 745 1825 510 1655 390 1535 325 1335 230 0 40 2080 735 1810 520 1650 405 1515...

Page 52: ...y to empty condensate water 3 Remove the clean out cap from the condensate trap and empty water Inspect the trap then reinstall 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 ele...

Page 53: ...the 2 pin plug to the wire harness 38 Reconnect drain tubes between flue collar and 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 va...

Page 54: ...vide 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 must be analyzed and compared to the unit specifications Problems detected during the ins...

Page 55: ...rner operation 1 Flash Reverse line voltage polarity 2 Flashes Improper earth ground 3 Flashes Burner failed to light or lost flame during heat demand 4 Flashes Low flame signal check flame sensor 5 Flashes Watchguard burner failed to light exceeded maximum number of retries or recycles 6 Flashes Not used 7 Flashes Primary or Secondary limit open or watchguard mode limit switch open longer than 3 ...

Page 56: ...m 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 not app...

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