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443 06 4001 01   

June 2012

Specifications  subject to change without notice.

NAHA00101MH

INSTALLATION  INSTRUCTIONS

MANUFACTURED (MOBILE) HOME KIT

Condensing Gas Furnace Conversion

C E RT I F I E D

NOTE

:  Read the entire instruction manual before starting the

installation.

SAFETY CONSIDERATION

!

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK, AND CARBON

MONOXIDE POISONING HAZARD

Failure to follow this warning could result in personal injury or

death.
This conversion kit shall be installed by a qualified service

agency in accordance with the manufacturer’s instructions

and all applicable codes and requirements of the authority

having jurisdiction. If the information in these instructions is

not followed exactly, a fire, explosion, or production of carbon

monoxide could result causing property damage, personal

injury, or loss of life. The qualified service agency is

responsible for the proper installation of this furnace with this

kit. The installation is not proper and complete until the

operation of the converted appliance is checked as specified

in the manufacturer’s instructions supplied with the kit.

!

AVERTISSEMENT

LE FEU, L’EXPLOSION, CHOC ELECTRIQUE, ET

MONOXYDE DE CARBONE EMPOISONNER

Cette trousse de conversion doit être installée par un servie

d’entretien qualifié, selon les instructions du fabricant et selon

toutes les exigences et tous les codes pertinents de l’autorité

compétente. Assurezvous de bien suivre les instructions

dans cette notice pour réduire au minimum le risque

d’incendie, d’explosion ou la production de monoxyde de

carbone pouvant causer des dommages matériels, de

blessure ou la mort. Le service d’entretien qualifié est

responsable de l’installation de cette trousse. L’installation

n’est pas adéquate ni complète tant que le bon

fonctionnement de l’appereil converti n’a pas été vérfié selon

les instructions du fabricant fornies avec la trousse.

Installing and servicing heating equipment can be hazardous

due to gas and electrical components. Only trained and

qualified personnel should install, repair, or service heating

equipment.
Untrained personnel can perform basic maintenance functions

such as cleaning and replacing air filters. Trained service

personnel must perform all other operations. When working on

heating equipment, observe precautions in the literature, on

tags, and on labels attached to or shipped with the unit, and

other safety precautions that may apply.
Follow all safety codes. In the United States, follow all safety

codes including the current edition of the National Fuel Gas

Code (NFGC) NFPA No. 54/ANSI Z223.1. In Canada, refer to

the current edition of the National Standard of Canada, Natural

Gas and Propane Installation Codes (NSCNGPIC),

CAN/CSA

B149.1 and .2. Wear safety glasses and work

gloves. Have a fire extinguisher available during start

up,

adjustment steps, and service calls.
Recognize safety information. This is the safety

alert symbol

. When you see this symbol on the furnace and in

instructions or manuals, be alert to the potential for personal

injury. Understand the signal words DANGER, WARNING,

CAUTION and NOTE. The words DANGER, WARNING, and

CAUTION are used with the safety alert symbol. DANGER

identifies the most serious hazards which 

will 

result in severe

personal injury or death. WARNING signifies a hazard which

could 

result in personal injury or death. CAUTION is used to

identify unsafe practices which 

may 

result in minor personal

injury or product and property damage. NOTE is used to

highlight suggestions which 

will 

result in enhanced installation,

reliability, or operation.

INTRODUCTION

!

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK AND CARBON

MONOXIDE POISONING HAZARD

Failure to follow instructions could result in personal injury,

death or property damage.
Improper installation, adjustment, alteration, service,

maintenance, or use can cause carbon monoxide poisoning,

explosion, fire, electrical shock, or other conditions, which

could result in personal injury or death. Consult your

distributor or branch for information or assistance. The

qualified installer or agency must use only factory

authorized

kits or accessories when servicing this product.

!

WARNING

FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury,

death or property damage.
Gas supply MUST be shut off before disconnecting electrical

power and proceeding with conversion.

This instruction covers the installation of kit Part No.

NAHA00101MH in the following gas furnaces for manufactured

(mobile) home applications.
This kit is only for use in single stage 40,000 through 120,000

Btuh gas input models when installed as a direct vent (2

pipe)

furnace.

NOTE

:  This kit is not approved for the 140,000 Btuh gas input

model furnace, any two

stage and variable speed models, any

non

direct vent (1

pipe) applications nor any furnace that does

not have a sealed combustion system with provisions for

outside air.

40,000 to 120,000 BTUH MODEL NUMBERS

BEGINNING WITH:

G9MXE

F9MXE

N9MXB

N9MSB

N9MSE

Summary of Contents for NAHA00101MH

Page 1: ...autions that may apply Follow all safety codes In the United States follow all safety codes including the current edition of the National Fuel Gas Code NFGC NFPA No 54 ANSI Z223 1 In Canada refer to the current edition of the National Standard of Canada Natural Gas and Propane Installation Codes NSCNGPIC CAN CSA B149 1 and 2 Wear safety glasses and work gloves Have a fire extinguisher available du...

Page 2: ...SECTION III Conversion from Propane to Natural Gas SECTION I INITIAL KIT INSTALLATION Procedure 1 General A downflow furnace application is where furnace blower is located above combustion and controls section of furnace and conditioned air is discharged downwards Attach adhesive pouch containing literature packet and gas conversion parts to outside of main furnace door or accessible side of furna...

Page 3: ...SING IS NOT INSTALLED NOT SHOWN 1 Accessory floor base MUST be used Review floor base Installation Instructions before installation 2 Secure accessory floor base to structure using 5 16 in 8 mm lag screws 3 Fasten furnace to accessory floor base using No 10 self tapping screws through tabs on both sides of base two each side Procedure 2 Replace Gas Valve CAUTION UNIT OPERATION HAZARD Failure to fo...

Page 4: ...ctor harness from gas valve Disconnect wires from Hot Surface Igniter HSI and Flame Sensor See Figure 9 8 Support the manifold and remove the four 4 screws that secure the manifold assembly to the burner box and set aside 9 Note the location of the green yellow wire ground wire for re assembly later See Figure 3 10 Remove production gas valve from manifold assembly and discard valve NOTE Productio...

Page 5: ...Figure 8 for label location 1 Attach Conversion Responsibility Label 337993 101 inside of main furnace door See Figure 7 Date name and address of organization making this conversion are required See Figure 5 2 Attach Conversion Rating Plate Label 338299 101 inside of lower left hand side of controls compartment downflow as shown in Figure 6 3 Attach Manufactured Mobile Home Installation Label 3222...

Page 6: ...on furnace rating plate is for installations at altitudes up to 2000 ft 610 M In the U S A the input rating for altitudes above 2000 ft 610 M must be reduced by 2 percent for each 1000 ft 305 M above sea level In Canada the input rating must be derated by 5 percent for altitudes of 2000 ft to 4500 ft 610 M to 1372 M above sea level The Conversion Kit Rating Plate accounts for high altitude derate ...

Page 7: ... Drill out with 7 64 drill bit A11460 Figure 14 Igniter Position Back View 2 1 2 in 64 4 1 1 4 in 31 8 A11405 Figure 15 Igniter Position Side View 2 in 2 5 mm 75 mm 3 8 in 3 16 in A11272 Figure 16 Convertible Gas Valve ON OFF SWITCH INLET PRESSURE TAP REGULATOR PLUNGER LP NAT CONVERTIBLE CAP GAS PRESSURE REGULATOR MANIFOLD PRESSURE TAP NAT LP BURNER ENCLOSURE PRESSURE REFERENCE TAP A11508 ...

Page 8: ...ls des blessures ou la mort 2 Apply pipe dope sparingly to the male threads of the 1 8 in black iron street elbow Install the street elbow into the gas valve inlet pressure tap Point the open end of the street elbow toward you 3 Apply pipe dope sparingly to the male threads of the 1 8 in brass street tee Install the male end of the street tee as shown in Figure 17 One opening on the street tee sho...

Page 9: ...th the support rings on the end of the burner 3 Insert the orifices in the support rings of the burners Manifold mounting tabs should fit flush against the burner box NOTE If manifold does not fit flush against the burner box the burners are not fully seated forward Remove the manifold and check burner positioning in the burner box assembly 4 Attach the green yellow wire and ground terminal to one...

Page 10: ...sition CHECK FURNACE AND MAKE ADJUSTMENTS 1 Be sure main gas and electric supplies to furnace are off 2 Remove 1 8 in 3 mm pipe plug from manifold pressure tap on downstream side of gas valve 3 Attach manometer to manifold pressure tap on gas valve See Figure 16 4 Turn gas supply manual shutoff valve to ON position 5 Turn furnace gas valve switch to ON position WARNING FIRE AND EXPLOSION HAZARD Fa...

Page 11: ...flamme vive Utilisez plutôt un savon fait specifiquement pour la détection des fuites de gaz pour verifier tous les connections Un incendie ou une explosion peut entrainer des dommages matériels des blessures ou la mort 18 Check pressure tap plug for gas leaks when main burners ignite 19 Check for correct burner flame 20 Observe unit operation through two complete heating cycles 21 See Sequence of...

Page 12: ...ed by manifold pressure and orifice size Furnace gas input rate on rating plate is for installations at altitudes up to 2000 ft 610 M In the U S A the input rating for altitudes above 2000 ft 610M must be reduced by 2 percent for each 1000 ft 305 M above sea level In Canada the input rating must be derated by 5 percent for altitudes of 2000 ft 610 M to 4500 ft 1372 M above sea level Furnace input ...

Page 13: ...the 1 8 in NPT pipe plug from the tee fitting on the Low Gas Pressure Switch 5 Remove the Low Gas Pressure Switch from fittings on gas valve and discard 6 Remove remaining fittings from gas valve and discard 7 Install manometer fitting to the open end of the brass street tee Or if installation is to be completed later apply pipe dope to inlet pressure plug from gas valve and install in open end of...

Page 14: ...s with an open flame Use a commercially available soap solution made specifically for the detection of leaks to check all connections A fire or explosion may result causing property damage personal injury or loss of life AVERTISSEMENT RISQUE D EXPLOSION ET D INCENDIE Le fait de ne pas suivre cet avertissement pourrait entraîner des dommages corporels et ou la mort Ne jamais examiner pour les fuite...

Page 15: ...c for gas meter test dial to complete one revolution e Refer to Table 4 for cu ft of gas per hr f Multiply gas rate cu ft hr X heating value Btu cu ft using natural gas heating value from local gas utility supplier g Fill in Conversion Responsibility Label 321102 101 located on inside of main furnace door Date name and address of organization making the conversion is required h Check for gas leaks...

Page 16: ...3 2 42 3 3 42 3 4 915 825 43 3 6 43 3 7 43 3 8 42 3 2 850 44 3 8 43 3 5 43 3 6 43 3 7 875 44 3 6 44 3 7 43 3 4 43 3 5 4000 900 44 3 4 44 3 5 44 3 7 44 3 8 1219 925 44 3 2 44 3 4 44 3 5 44 3 6 950 44 3 1 44 3 2 44 3 3 44 3 4 750 42 3 3 42 3 4 42 3 5 42 3 6 4001 775 43 3 7 43 3 8 42 3 3 42 3 4 1220 800 43 3 5 43 3 6 43 3 7 43 3 8 825 44 3 8 43 3 4 43 3 5 43 3 6 850 44 3 5 44 3 7 44 3 8 43 3 4 5000 8...

Page 17: ... 3 3 42 3 4 2134 700 43 3 5 43 3 7 43 3 8 42 3 2 725 44 3 8 43 3 4 43 3 5 43 3 6 750 44 3 5 44 3 7 44 3 8 43 3 4 8000 775 44 3 3 44 3 4 44 3 5 44 3 7 2438 800 44 3 1 44 3 2 44 3 3 44 3 4 825 44 2 9 44 3 0 44 3 1 44 3 2 625 42 3 4 42 3 5 42 3 6 42 3 7 8001 650 43 3 8 42 3 2 42 3 3 42 3 4 2439 675 43 3 5 43 3 6 43 3 7 42 3 2 700 44 3 7 43 3 4 43 3 5 43 3 6 725 44 3 5 44 3 6 44 3 7 44 3 8 9000 750 44...

Page 18: ...23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48 97 243 28 129 257 643 76 47 95 237 29 124 248 621 78 46 92 231 30 120 240 600 80 45 90 225 31 116 232 581 82 44 88 220 32 113 225 563 84 43 86 214 33 109 218 545 86 42 84 209 34 106 212 529 88 41 82 205 35 103 206 514 90 40 80 200 36 100 200 500 92 39 78 196 37 9...

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