Install Instructions

Page 1
NEOTHERM Residential Boilers
Section 1 -
GENERAL INFORMATION
WARNING
NeoTherm 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 NeoTherm boilers must conform to the Standard
for Controls and Safety Devices for Automatically
Fired Boilers, ANSI/ASME CSD-1. Any modications
to the boiler, its gas controls, or wiring may void the
warranty. If eld conditions require modications,
consult the factory representative before initiating
such modications.
1.1 Introduction
This manual provides information necessary for the
installation, operation, and maintenance of LAARS Heating
Systems NeoTherm appliances. Read it carefully before
starting the 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.
The NeoTherm is protected against over pressurization. A
pressure relief valve is included with each unit. Some may
require that the PRV be installed prior to lling the system.
Refer to Figures 1-2 for PRV locations.
DANGER
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”
or In Canada reference the B149.1 latest edition, 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Identication(Nomenclature)
Consult the rating plate on the unit. The following information
describes the model number structure.
(1-2) ModelSeriesDesignation
N T = NeoTherm
(3) Usage
H = Hydronic
(4-6) Size
0 8 0 = 80,000 BTU/hr input
1 0 5 = 105,000 BTU/hr input
1 5 0 = 150,000 BTU/hr input
2 1 0 = 210,000 BTU/hr input
(7) Fuel
N = Natural Gas
P = LP Gas
(8) Options Code
X = Standard Unit
(9) Pump Options
N = Pump included
(80-210 only)
X = No pump (conguration available for all sizes)
W = HLW w/ Pump
L = HLW w/out Pump
(10) Revision
3 = Third version
1 2 3 4 5 6 7 8 9 10 11
H
X
SERIES
N T
USAGE
H - HYDRONIC
SIZE
MBTU/h
0 8 0
1 0 5
1 5 0
2 1 0
FUEL
N - NATURAL
P - PROPANE
OPTIONS CODE
X - STANDARD
REVISION
3 - THIRD
REG DESIGNATION
ModelNomenclature
B 3
N T
B - INTERNAL USE
PUMP OPTIONS
N -
PUMP
INCL.
(80-210 only)
X - NO PUMP
W -
HL
W w/PUMP
L -
HLW w/out
PUMP