Laars LMH, LMC, Mascot II, LMH Series, LMC Series User Manual
LAARS Heating Systems
Page 2
SECTION 1.
General Information
WARNING
Mascot II units must be installed in accordance
with the procedures detailed in this manual, or the
LAARS Heating Systems warranty will be voided.
The installation must conform to the requirements
of the local jurisdiction having authority, and, in the
United States, to the latest edition of the National Fuel
Gas Code, ANSI Z223.1/NFPA54. In Canada, the
installation must conform to the latest edition of CSA
B149.1 Natural Gas and Propane Gas Installation
Code, and/or local codes. Where required by the
authority having jurisdiction, the installation of Mascot
II boilers must conform to the Standard for Controls
and Safety Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1. Any modications to the boiler,
its gas controls, or wiring may void the warranty.
If eld conditions require modications, consult
the factory representative before initiating such
modications.
1.1 Introduction
This manual provides information necessary for
the installation, operation, and maintenance of LAARS
Heating Systems Mascot II appliances. Read it carefully
before installation.
All application and installation procedures
should be reviewed completely before proceeding
with the installation. Consult the LAARS Heating
Systems factory, or local factory representative, with
any problems or questions regarding this equipment.
Experience has shown that most operating problems are
caused by improper installation.
Mascot II is protected against over pressurization.
A pressure relief valve is included with each Mascot II.
The PRV should be installed prior to lling the system.
Refer to Figures 1 and 2 for PRV locations.
IMPORTANT: The inlet gas pressure to the appliance
must not exceed 13” W.C. (3.2kPa).
All installations must be made in accordance with
1) American National Standard Z223.1/NFPA54-Latest
Edition “National Fuel Gas Code” or 2) CSA B149.1
“Natural Gas and Propane Installation Code” and with
the requirement of the local utility or other authorities
having jurisdiction. Such applicable requirements take
precedence over the general instructions contained
herein.
All electrical wiring is to be done in accordance
with the local codes, or in the absence of local codes,
with: 1) The National Electrical Code ANSI/NFPA No.
70-latest Edition, or 2) CSA STD. C22.1 “Canadian
Electrical Code - Part 1”. This appliance must be
electrically grounded in accordance with these codes.
1.2 ModelIdentication
Consult the rating plate on the unit. The following
information describes the model number structure.
(1-2) Model Series Designation
L M = Mascot II
(3) Usage
H = Modulating Boiler
C = Combination Boiler and Water Heater
(4-6) Size
1 2 5 = 125,000 BTU/hr input
(7) Fuel
N = Natural Gas
P = LP Gas
(8) Altitude
A = 0-10,000 Feet
(9) Revision
1 = First version
(10) Options Code
X = No Options
(11) Pump Options
X = No Pump
(12) Regulatory Designation
B = Internal Use
1.3 Appliance Overview
See Figure 2.
1.4 Warranty
LAARS Heating Systems’ Mascot II appliances
are covered by a limited warranty. The owner should
complete the warranty registration at www.Laars.com.
All warranty claims must be made to an authorized
Model Nomenclature
1 2 3 4 5 6 7 8 9 10 11
L M 1 2 5 A 1 X X
SERIES
L M
USAGE
H - HYDRONIC
C - COMBI
UNIT
SIZE
MBTU/h
1 2 5
FUEL
N - NATURAL
P - PROPANE
ALTITUDE
A - 0-10,000 FEET
REVISION
1 - FIRST
OPTIONS
X - NONE
PUMP
X - NONE
REG DESIGNATION
B - INTERNAL USE
B
12
Addendum to 1239 Install/Operating Instruction Manual
Addendum - Nov 16th, 2012 H2338601-
Model Sizes Part No. Doc. # Page .
Mascot ll 125 H2338600- Doc. 1239 2
Page Change
Pg 2 Model Nomenclature
An additional number has been added to the
Model Nomenclature for product tracking
purposes.
H2338601-
User’s Manual Document 1239
User ’s Information for
Mascot® II
Modulating Boiler
Model LMH
125 MBTU/h
Combination
Boiler and Water Heater
Model LMC
125 MBTU/h
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
WARNING
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.
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
vous trouvez.
• 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.
A VERTISSEMENT
H2338600-
Page 2
LAARS Heating Systems
SECTION 1.
General Information
WARNING
Mascot II units must be installed in accordance with
the procedures detailed in this manual, or the LAARS
Heating Systems warranty will be voided. The
installation must conform to the requirements of the
local jurisdiction having authority, and, in the United
States, to the latest edition of the National Fuel Gas
Code, ANSI Z223.1/NFPA54. In Canada, the
installation must conform to the latest edition of CSA
B149.1 Natural Gas and Propane Gas Installation
Code, and/or local codes. Where required by the
authority having jurisdiction, the installation of Mascot
II boilers must conform to the Standard for Controls
and Safety Devices for Automatically Fired Boilers,
ANSI/ASME CSD-1. Any modifications to the boiler,
its gas controls, or wiring may void the warranty. If
field conditions require modifications, consult the
factory representative before initiating such
modifications.
1.1 Introduction
This manual provides information necessary for
the installation, operation, and maintenance of LAARS
Heating Systems Mascot II appliances. Read it carefully
before installation.
All application and installation procedures should
be reviewed completely before proceeding with the
installation. Consult the LAARS Heating Systems
factory, or local factory representative, with any
problems or questions regarding this equipment.
Experience has shown that most operating problems are
caused by improper installation.
Mascot II is protected against over pressurization.
A pressure relief valve is included with each Mascot II.
The PRV should be installed prior to filling the system.
Refer to Figures 1 and 2 for PRV locations.
IMPORTANT: The inlet gas pressure to the appliance
must not exceed 13" W.C. (3.2kPa).
All installations must be made in accordance with
1) American National Standard Z223.1/NFPA54-Latest
Edition “National Fuel Gas Code” or 2) CSA B149.1
“Natural Gas and Propane Installation Code” and with
the requirement of the local utility or other authorities
having jurisdiction. Such applicable requirements take
precedence over the general instructions contained herein.
All electrical wiring is to be done in accordance
with the local codes, or in the absence of local codes,
with: 1) The National Electrical Code ANSI/NFPA No.
70-latest Edition, or 2) CSA STD. C22.1 “Canadian
Electrical Code - Part 1”. This appliance must be
electrically grounded in accordance with these codes.
1.2 Model Identification
Consult the rating plate on the unit. The following
information describes the model number structure.
(1-2) Model Series Designation
L M = Mascot II
(3) Usage
H = Modulating Boiler
C = Combination Boiler and Water Heater
(4-6) Size
1 2 5 = 125,000 BTU/hr input
(7) Fuel
N = Natural Gas
P = LP Gas
(8) Altitude
A = 0-10,000 Feet
(9) Revision
1 = First version
(10) Options Code
X = No Options
(11) Pump Options
X = No Pump
1.3 Appliance Overview
See Figure 2.
1.4 Warranty
LAARS Heating Systems’ Mascot II appliances
are covered by a limited warranty. The owner should
complete the warranty registration at www.Laars.com.
All warranty claims must be made to an authorized
12 3 456 7 8 9 10 11
LM 125 A 1 X X
SERIES
L M
USAGE
H - HYDRONIC
C - COMBI
UNIT
SIZE
MBTU/h
1 2 5
Model Nomenclature
FUEL
N - NATURAL
P - PROPANE
ALTITUDE
A - 0-10,000 FEET
REVISION
1 - FIRST
OPTIONS
X - NONE
PUMP
X - NONE
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