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User’s Manual 

Document 1343C

H2375100C

 WARNING

If the information in this manual is not 

followed exactly, a fire or explosion may 

result causing property damage, personal 

injury or loss of life.

Do not store or use gasoline or other 

flammable vapors and liquids in the vicinity 

of this or any other appliance.

WHAT TO DO IF YOU SMELL GAS

•  Do not try to light any appliance.

•  Do not touch any electrical switch; do not 

use any phone in your building.

•  Immediately call your gas supplier from a 

nearby phone. Follow the gas supplier’s 

instructions.

•  If you cannot reach your gas supplier, call 

the fire department.

Installation and service must be performed 

by a qualified installer, service agency, or gas 

supplier.

FOR YOUR SAFETY:

 This product must be installed and serviced by a professional service technician, 

qualified in hot water boiler and heater installation and maintenance. Improper installation and/or operation 

could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or 

death. Improper installation and/or operation will void the warranty.

 AVERTISSEMENT

Assurez-vous de bien suivres les instructions 

données dans cette notice pour réduire au 

minimum le risque d’incendie ou d’explosion 

ou pour éviter tout dommage matériel, toute 

blessure ou la mort.

Ne pas entreposer ni utiliser d’essence ni 

d’autres vapeurs ou liquides inflammables dans 

le voisinage de cet appareil ou de tout autre 

appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:

•  Ne pas tenter d’allumer d’appareils.

•  Ne touchez à aucun interrupteur. Ne pas vous servir 

des téléphones dansle bâtiment où vous êtes.

•  Appelez immédiatement votre fournisseur de 

gaz depuis un voisin. Suivez les instructions 

du fournisseur.

•  Si vous ne pouvez rejoindre le fournisseur de 

gaz, appelez le sservice des incendies.

L’installation et l’entretien doivent être assurés par 

un installateur ou un service d’entretien qualifié ou 

par le fournisseur de gaz.

User’s Manual for

M

ASCOT

 ® 

FT

Wall-Mounted, Modulating  
Gas, Condensing, Heating Only, Boiler 
Model MFTHW

• 

Natural Gas (NG) - Factory Configuration

• 

Propane Gas (LP) - Field-Convertible

  80,000 BTU/hr

100,000 BTU/hr

120,000 BTU/hr

140,000 BTU/hr

199,000 BTU/hr

Содержание MFTHW

Страница 1: ...njury property damage or death Improper installation and or operation will void the warranty AVERTISSEMENT Assurez vous de bien suivres les instructions donn es dans cette notice pour r duire au minim...

Страница 2: ...LAY COVER HINGES UPWARD NO Name of Component 1 Air Vent air eliminator 2 Air Intake Collar 3 Air Gas Mixing Pipe 4 Gas Inlet Pipe 2 5 Gas Valve 6 Exhaust Duct 7 Low Water Temperature Sensor 8 OP Senso...

Страница 3: ...User s Manual Mascot FT Heating Only Boiler Page 3 Shown is the Mascot FT Heating Only 140 MBH All sizes are very similar in component layout...

Страница 4: ...orethylene perchlorethylene chlorine etc Keep bottom and top openings on the boiler free for proper ventilation of interior components Do not obstruct or block a free flow of air to the boiler to ensu...

Страница 5: ...r CH set point change mode Maxium 82 C 180 F D Time Date Set No Change To SET Year Month Week Day Time Min E Scroll Select Menu select or value up down or setting dial The Control Display has a Contro...

Страница 6: ...nication state indication Time setting mode Time Dispaly Install mode indication Fan operating mode Fan operating mode indication Flame signal Flame Signal indication CH pump mode CH pump mode indicat...

Страница 7: ...user and service modes that have speci c LCD output and dedicated controls Set point change mode Lock mode Error mode Status display mode Outside Temperature mode Installer mode Control Display will n...

Страница 8: ...the MON Month by turning the dial E to the desired month number Then press the dial E to Save c Set the DATE 1 31 Day of the Month by turning the dial E Then press the dial E to Save d Set the HOUR 1...

Страница 9: ...ame is detected Date and Time indicator If CH pump is operating If there currently a Demand for Central Heat CH Default CH set point is 180 F 82 C CH set point range is 86 F 180 F 30 0 C 82 0 C To cha...

Страница 10: ...u Unit 1000hour 2 rh Time for burner operation Unit 1hour 3 rH Time for burner operation Unit 1 000hour 4 It Cycle for ignition Cycle 10 times the displayed unit 5 IH Cycle for ignition Cycle 10 000 t...

Страница 11: ...User s Manual Mascot FT Heating Only Boiler Page 11 Notes...

Страница 12: ...ester NH USA 03867 603 335 6300 Fax 603 335 3355 1869 Sismet Road Mississauga Ontario Canada L4W 1W8 905 238 0100 Fax 905 366 0130 www Laars com Litho in U S A Laars Heating Systems 1607 Document 1343...

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