Laars MASCOT FT MFTCW - User Manual

Installation and Operation Instructions Document 1318
H2372800-
WARNING
If the information in this manual is not
followed exactly, a re or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
ammable 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 re department.
Installation and service must be performed
by a qualied installer, service agency, or gas
supplier.
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied in hot water boiler and heater installation and maintenance. Improper installation and/or operation
could create carbon monoxide gas in ue 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 ou ni
d’autres vapeurs ou liquides inammables dans
le à proximité 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 dans le bâtiment où vous vous
trovez.
• 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 qualié
ou par le fournisseur de gaz.
Installation and Operation
Instructions for
MASCOT
®
FT
Wall-Mounted, Modulating
Gas, Condensing, Combination Boiler
Model MFTCW
140,000 BTU/hr
• Natural Gas (NG) - Factory Conguration
• Propane Gas (LP) - Field-Convertible

Summary

SECTION 3 Safety Regulations

3.1 Safety Symbols

Defines warning symbols (DANGER, WARNING, CAUTION) and their meanings.

3.2 Safety Precautions and Proper Use

Outlines essential safety measures for installation, operation, and maintenance.

SECTION 4 Installation

4.1 Location and Clearances

Specifies required space, clearances from combustibles, and mounting requirements.

4.3 Combustion Air and Venting

Details requirements for supplying combustion air and exhaust venting systems.

4.9 Gas Supply and Piping

Provides guidelines for connecting gas supply, pressure, and conversion to propane.

4.18 Electrical Wiring Connections

Covers wiring, DIP switches, control board diagrams, and electrical connections.

SECTION 5 Control Display and Operation

5.8 Installer Mode

5.11 Error Mode

Explains how the boiler displays and indicates error codes for troubleshooting purposes.

SECTION 6 Error Codes

6.1 Error Codes

Lists specific error codes, their descriptions, and possible remedies.

6.2 Fault Tree Analysis

SECTION 7 Trouble Shooting

7.1 Diagnostics

7.2 Suggested Corrective Actions

SECTION 8 Maintenance

8.1 Annual startup & general maintenance

SECTION 9 - Installation Check

9.1 Quick View

9.2 Final Check Lists

Laars MASCOT FT MFTCW Specifications

General

Category	Boiler
Brand	Laars
Model	MASCOT FT MFTCW
Fuel Type	Natural Gas or Propane
Efficiency	95%
Modulation Ratio	5:1
Heat Exchanger Material	Stainless Steel
Ignition Type	Electronic Ignition
Vent Type	Direct Vent
Type	Condensing
Control System	Digital Control
Vent Diameter	2" or 3"
Dimensions	Varies by model. Consult product brochure for specific dimensions.
Weight	150 lbs