Laars LMH User Manual

Page 2
SECTION 1.
General Information
Addendum to 1239 Install/Operating Instruction Manual
WARNING
Addendum - Nov 16th, 2012
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
Model
Gas Code, ANSI Z223.1/NFPA54. In Canada, the
installation must conform to the latest edition of CSA
Mascot ll
B149.1 Natural Gas and Propane Gas Installation
Code, and/or local codes. Where required by the
authority having jurisdiction, the installation of Mascot
Page Change
II boilers must conform to the Standard for Controls
and Safety Devices for Automatically Fired Boilers,
Pg 2 Model Nomenclature
ANSI/ASME CSD-1. Any modifications to the boiler,
An additional number has been added to the
its gas controls, or wiring may void the warranty.
Model Nomenclature for product tracking
If field conditions require modifications, consult
purposes.
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
1 2 3 4
L M 1
SERIES USAGE
L M
H - HYDRONIC
C - COMBI
UNIT
H2338601-
Sizes
125
Model Nomenclature
5 6 7
2 5
SIZE FUEL
MBTU/h
N - NATURAL
1 2 5
P - PROPANE
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.
Part No.
H2338600-
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
Altitude
(8)
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
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
8 9
A 1
ALTITUDE REVISION
A - 0-10,000 FEET
1 - FIRST
LAARS Heating Systems
Doc. #
Doc. 1239
2.
10 11
X X
OPTIONS
PUMP
X - NONE X - NONE
Page .
2
12
B
REG DESIGNATION
B - INTERNAL USE