Laars MASCOT FT MFTCW User Manual

Laars MASCOT FT MFTCW User Manual

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User's Manual
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.
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.
User's Manual
M
Wall-Mounted, Modulating
Gas, Condensing, Combination Boiler
Model MFTCW
140,000 BTU/hr
Natural Gas (NG) - Factory Configuration
Propane Gas (LP) - Field-Convertible
WARNING
ASCOT
®
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.
Document 1319
FT
AVERTISSEMENT

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Summary of Contents for Laars MASCOT FT MFTCW

  • Page 1 User’s Manual Document 1319 User’s Manual ASCOT ® Wall-Mounted, Modulating Gas, Condensing, Combination Boiler Model MFTCW 140,000 BTU/hr • Natural Gas (NG) - Factory Configuration • Propane Gas (LP) - Field-Convertible 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.
  • Page 2 Page 2 LAARS Heating Systems CONTENTS Pgs - 1. Familiarizing yourself to the Laars Mascot FT ..2 2. Caring For Your Mascot FT ........2 3. Start Up and Shut Down........4 4. Control Setup and Operation ......4-10...
  • Page 3 User’s Manual - Mascot FT Combination Boiler / Water Heater Page 3 Hydronic Supply Hydronic Return Name of Component Name of Component Condensate Connection Air Vent (air eliminator) Condensate Trap Pressure Relief Valve Air Intake Collar Air Pressure Switch (condensate) Air Gas Mixing Pipe Mixing Valve Gas Valve...
  • Page 4: Shut Down And Restart

    Page 4 LAARS Heating Systems 3. Shut Down and Restart 3.1 To Start the Mascot FT 3.2 Shutting Down the Mascot FT If drained, please refer to the Install and Operating Turn off the main electrical disconnect switch. Manual to ensure that the complete ‘Setup’...
  • Page 5: Anti-Freeze Mode

    User’s Manual - Mascot FT Combination Boiler / Water Heater Page 5 Page 49 Mascot FT Combination Boiler 4. The Control Display and Operation (continued) SECTION 5. Control Display and Operation 5.2 LCD Overview Page 49 Mascot FT Combination Boiler Anti-Freeze Lock Communicating...
  • Page 6 Page 6 LAARS Heating Systems LAARS Heating Systems Page 50 SECTION 5. Control Display and Operation 5.3 Operating Mode Operating Mode After the Power is turned on, and/or the Control Display is turned on , the Control Display will go through a ‘Start Up’ checklist and briefl y show a sequence of diagnostic codes before entering into the ‘Operating Mode.
  • Page 7: Status Display Mode

    User’s Manual - Mascot FT Combination Boiler / Water Heater Page 7 Mascot FT Combination Boiler Page 51 SECTION 5. Control Display and Operation 5.4 Status Display Mode Digital Display Status Display Parameter Description O:ot Outdoor temperature Current Outdoor temperature A: Li or A: GA Flow unit Current fl...
  • Page 8 Page 8 LAARS Heating Systems LAARS Heating Systems Page 52 SECTION 5. Control Display and Operation 5.5 DHW Set Point Change Mode DHW Set Point Change Modes The display shows the following information when changing water heating temperature set points.
  • Page 9: Storage Mode

    User’s Manual - Mascot FT Combination Boiler / Water Heater Page 9 Mascot FT Combination Boiler Page 53 SECTION 5. Control Display and Operation 5.6 CH Set Point Change Mode Changing between Celsius and Fahrenheit When the button D is pressed (for more than 5 seconds), temperature unit will toggle between °C and °F.
  • Page 10 Page 10 LAARS Heating Systems Notes:...
  • Page 11 User’s Manual - Mascot FT Combination Boiler / Water Heater Page 11 Notes:...
  • Page 12 Customer Service and Product Support: Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax 603.335.3355 Headquarters: 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 1503 Document 1319...

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